{"id":14796,"date":"2024-10-24T08:50:21","date_gmt":"2024-10-24T08:50:21","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=14796"},"modified":"2024-11-07T00:52:15","modified_gmt":"2024-11-07T00:52:15","slug":"composite-materials-the-transformation-of-calcium-carbonate-from-traditional-filler-to-innovative-modifier","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/composite-materials-the-transformation-of-calcium-carbonate-from-traditional-filler-to-innovative-modifier\/","title":{"rendered":"V\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p: S\u1ef1 chuy\u1ec3n \u0111\u1ed5i c\u1ee7a canxi cacbonat t\u1eeb ch\u1ea5t \u0111\u1ed9n truy\u1ec1n th\u1ed1ng th\u00e0nh ch\u1ea5t bi\u1ebfn t\u00ednh s\u00e1ng t\u1ea1o"},"content":{"rendered":"

Nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn canxi cacbonat \u0111\u00e3 gi\u00fap n\u00f3 ph\u00e1t tri\u1ec3n t\u1eeb ch\u1ea5t \u0111\u1ed9n truy\u1ec1n th\u1ed1ng th\u00e0nh ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh. S\u1ef1 ph\u00e1t tri\u1ec3n n\u00e0y cho ph\u00e9p gi\u1ea3m chi ph\u00ed s\u1ea3n ph\u1ea9m \u0111\u1ed3ng th\u1eddi t\u0103ng c\u01b0\u1eddng c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u00fang. M\u1ed9t s\u1ed1 trong s\u1ed1 ch\u00fang l\u00e0 \u0111\u1eb7c t\u00ednh ri\u00eang c\u1ee7a canxi cacbonat. C\u00f4ng ngh\u1ec7 t\u1ea1o b\u1ecdt si\u00eau nh\u1ecf m\u1edbi v\u00e0 canxi cacbonat r\u1ed7ng c\u00f3 th\u1ec3 gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng. Ch\u00fang t\u1ea1o ra c\u00e1c h\u1ee3p ch\u1ea5t canxi cacbonat nh\u1eb9 h\u01a1n. Ch\u00fang \u0111\u00e3 s\u1eb5n s\u00e0ng cho s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

Ch\u00fang ta c\u00f3 th\u1ec3 t\u1ef1 tin d\u1ef1 \u0111o\u00e1n r\u1eb1ng trong t\u01b0\u01a1ng lai, canxi cacbonat nh\u1ef1a h\u1ee3p ch\u1ea5t<\/a> v\u1eadt li\u1ec7u s\u1ebd \u0111\u1ecbnh ngh\u0129a l\u1ea1i khu\u00f4n kh\u1ed5 truy\u1ec1n th\u1ed1ng c\u1ee7a \u201chai l\u1ea7n gi\u1ea3m v\u00e0 m\u1ed9t l\u1ea7n c\u1ea3i thi\u1ec7n\u201d\u2014c\u1ee5 th\u1ec3 l\u00e0 gi\u1ea3m chi ph\u00ed v\u00e0 m\u1eadt \u0111\u1ed9 trong khi t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t. Canxi cacbonat s\u1ebd chuy\u1ec3n t\u1eeb ch\u1ea5t \u0111\u1ed9n \u0111\u01a1n thu\u1ea7n th\u00e0nh ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh mang t\u00ednh c\u00e1ch m\u1ea1ng.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u composite canxi cacbonat nh\u1ef1a truy\u1ec1n th\u1ed1ng kh\u00f4ng ch\u1ec9 l\u00e0m gi\u1ea3m t\u1ea5t c\u1ea3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u. Thay v\u00e0o \u0111\u00f3, ch\u00fang c\u00f2n c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng nhi\u1ec1u thu\u1ed9c t\u00ednh kh\u00e1c nhau trong khi g\u00e2y ra m\u1ed9t s\u1ed1 suy gi\u1ea3m hi\u1ec7u su\u1ea5t. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 c\u1ee5 th\u1ec3 c\u1ea3 t\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c v\u00e0 ti\u00eau c\u1ef1c c\u1ee7a canxi cacbonat nh\u01b0 m\u1ed9t ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh. B\u00e0i vi\u1ebft h\u01b0\u1edbng d\u1eabn ch\u00fang ta t\u00ecm hi\u1ec3u s\u1ef1 ph\u00e1t tri\u1ec3n trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh canxi cacbonat c\u1ee7a nghi\u00ean c\u1ee9u trong t\u01b0\u01a1ng lai. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Hi\u1ec7u \u1ee9ng s\u1eeda \u0111\u1ed5i t\u00edch c\u1ef1c c\u1ee7a canxi cacbonat<\/strong><\/h2>\n\n\n\n

1 L\u1ee3i \u00edch c\u1ee7a Canxi Cacbonat \u0111\u1ed1i v\u1edbi M\u00f4i tr\u01b0\u1eddng<\/strong><\/h3>\n\n\n\n

1.1 B\u1ea3o t\u1ed3n t\u00e0i nguy\u00ean d\u1ea7u m\u1ecf<\/strong><\/h4>\n\n\n\n

T\u00e1c \u0111\u1ed9ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n c\u1ee7a canxi cacbonat trong bao b\u00ec nh\u1ef1a<\/strong><\/p>\n\n\n\n

S\u1eed d\u1ee5ng canxi cacbonat 30% trong PE, 3 tri\u1ec7u t\u1ea5n t\u00fai nh\u1ef1a c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c 900.000 t\u1ea5n nh\u1ef1a g\u1ed1c d\u1ea7u m\u1ecf v\u00e0 2,7 tri\u1ec7u t\u1ea5n d\u1ea7u.<\/p>\n\n\n\n

1.2 Hi\u1ec7u su\u1ea5t th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/strong><\/h4>\n\n\n\n

Vi\u1ec7c k\u1ebft h\u1ee3p canxi cacbonat v\u00e0o t\u00fai \u0111\u1ef1ng r\u00e1c b\u1eb1ng nh\u1ef1a d\u00f9ng \u0111\u1ec3 \u0111\u1ed1t c\u00f3 th\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t \u0111\u1ed1t v\u00e0 gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian \u0111\u1ed1t. Khi \u0111\u1ed1t, canxi cacbonat n\u1edf ra b\u00ean trong m\u00e0ng nh\u1ef1a, t\u1ea1o ra nhi\u1ec1u l\u1ed7 nh\u1ecf l\u00e0m t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t c\u00f3 th\u1ec3 \u0111\u1ed1t. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh \u0111\u1ed1t. V\u00ed d\u1ee5, th\u1eddi gian \u0111\u1ed1t \u0111\u1ed1i v\u1edbi m\u00e0ng nh\u1ef1a polyethylene ch\u1ee9a canxi cacbonat 30% gi\u1ea3m t\u1eeb 12 gi\u00e2y (\u0111\u1ed1i v\u1edbi nh\u1ef1a nguy\u00ean ch\u1ea5t) xu\u1ed1ng ch\u1ec9 c\u00f2n 4 gi\u00e2y.<\/p>\n\n\n\n

Ngo\u00e0i ra, m\u00e0ng nh\u1ef1a ch\u1ee9a canxi cacbonat th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y ho\u00e0n to\u00e0n h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m thi\u1ec3u kh\u00f3i \u0111en t\u1eeb hi\u1ec7u \u1ee9ng b\u1ea5c c\u1ee7a canxi cacbonat. T\u00ednh ki\u1ec1m c\u1ee7a canxi cacbonat gi\u00fap h\u1ea5p th\u1ee5 kh\u00ed axit. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u00f3i \u0111\u1ed9c v\u00e0 nguy c\u01a1 m\u01b0a axit.<\/p>\n\n\n\n

T\u1ea1i Nh\u1eadt B\u1ea3n, c\u00e1c quy \u0111\u1ecbnh quy \u0111\u1ecbnh r\u1eb1ng t\u00fai \u0111\u1ef1ng r\u00e1c b\u1eb1ng nh\u1ef1a \u0111\u1ec3 \u0111\u1ed1t ph\u1ea3i ch\u1ee9a \u00edt nh\u1ea5t 30% canxi cacbonat. Ngo\u00e0i t\u1ed1c \u0111\u1ed9 \u0111\u1ed1t ch\u00e1y \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, t\u00fai ch\u1ee9a canxi cacbonat t\u1ea1o ra \u00edt nhi\u1ec7t h\u01a1n, kh\u00f4ng t\u1ea1o ra gi\u1ecdt ho\u1eb7c kh\u00f3i \u0111en, gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m th\u1ee9 c\u1ea5p v\u00e0 kh\u00f4ng g\u00e2y h\u1ea1i cho l\u00f2 \u0111\u1ed1t.<\/p>\n\n\n\n

2. Hi\u1ec7u \u1ee9ng bi\u1ebfn \u0111\u1ed5i chung c\u1ee7a canxi cacbonat<\/strong><\/h3>\n\n\n\n

2.1 \u0110\u1ed9 c\u1ee9ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u composite<\/strong><\/h4>\n\n\n\n

Canxi cacbonat t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 u\u1ed1n, m\u00f4 \u0111un u\u1ed1n, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u composite. Trong m\u00e0ng nh\u1ef1a, \u0111\u1ed9 c\u1ee9ng t\u0103ng l\u00ean c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 c\u1ee9ng, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho u\u1ed1n ph\u1eb3ng v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u1ea5u tr\u00fac t\u1ed5ng th\u1ec3.<\/p>\n\n\n\n

2.2 T\u0103ng c\u01b0\u1eddng \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u composite<\/strong><\/h4>\n\n\n\n

Canxi cacbonat g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc b\u1eb1ng c\u00e1ch gi\u1ea3m co ng\u00f3t v\u00e0 cong v\u00eanh, gi\u1ea3m h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf tuy\u1ebfn t\u00ednh, gi\u1ea3m thi\u1ec3u \u0111\u1ed9 bi\u1ebfn d\u1ea1ng v\u00e0 th\u00fac \u0111\u1ea9y t\u00ednh \u0111\u1eb3ng h\u01b0\u1edbng. Vi\u1ec7c \u0111\u01b0a canxi cacbonat v\u00e0o v\u1eadt li\u1ec7u composite l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc.<\/p>\n\n\n\n

2.3 C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u composite<\/strong><\/h4>\n\n\n\n

Canxi cacbonat t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u composite b\u1eb1ng c\u00e1ch h\u1ea5p th\u1ee5 c\u00e1c ch\u1ea5t th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y. V\u00ed d\u1ee5, v\u1eadt li\u1ec7u composite PBAT\/canxi cacbonat th\u1ec3 hi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t l\u1edbn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi PBAT tinh khi\u1ebft. Ngo\u00e0i ra, vi\u1ec7c k\u1ebft h\u1ee3p canxi cacbonat nh\u1eb9 v\u00e0o c\u00e1c s\u1ea3n ph\u1ea9m PVC c\u00f3 hi\u1ec7u qu\u1ea3 h\u1ea5p th\u1ee5 hydro clorua \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y, t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd c\u1ee7a PVC.<\/p>\n\n\n\n

2.4 T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch c\u1ee7a m\u00e0ng phim<\/strong><\/h4>\n\n\n\n

C\u00e1c m\u00e0ng nh\u1ef1a th\u00f4ng th\u01b0\u1eddng th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 b\u1ec1n d\u1ecdc cao nh\u01b0ng \u0111\u1ed9 b\u1ec1n ngang th\u1ea5p, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 m\u00e0ng polyester aliphatic PBS, PLA v\u00e0 PHA. Vi\u1ec7c b\u1ed5 sung canxi cacbonat c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh \u0111\u1eb3ng h\u01b0\u1edbng c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u composite n\u00e0y, d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

3. T\u00ednh ch\u1ea5t bi\u1ebfn \u0111\u1ed5i \u0111\u1eb7c bi\u1ec7t c\u1ee7a canxi cacbonat<\/strong><\/h3>\n\n\n\n

3.1 T\u00e1c \u0111\u1ed9ng l\u00ean t\u00ednh ch\u1ea5t ch\u1ecbu k\u00e9o v\u00e0 va \u0111\u1eadp<\/strong><\/h4>\n\n\n\n

T\u00e1c \u0111\u1ed9ng c\u1ee7a canxi cacbonat l\u00ean \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp trong m\u00e0ng nh\u1ef1a kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ed5 bi\u1ebfn; n\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

T\u00e1c \u0111\u1ed9ng c\u1ee7a k\u00edch th\u01b0\u1edbc h\u1ea1t:<\/strong> C\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t kh\u00e1c nhau c\u1ee7a canxi cacbonat t\u1ea1o ra c\u00e1c hi\u1ec7u \u1ee9ng bi\u1ebfn \u0111\u1ed5i kh\u00e1c nhau tr\u00ean nh\u1ef1a, nh\u01b0 minh h\u1ecda trong B\u1ea3ng 1. Nh\u00ecn chung, c\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t d\u01b0\u1edbi 1000 l\u01b0\u1edbi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i gia t\u0103ng. C\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t t\u1eeb 1000 \u0111\u1ebfn 3000 l\u01b0\u1edbi, v\u1edbi l\u01b0\u1ee3ng b\u1ed5 sung d\u01b0\u1edbi 10%, c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 hi\u1ec7u \u1ee9ng bi\u1ebfn \u0111\u1ed5i. Ng\u01b0\u1ee3c l\u1ea1i, canxi cacbonat v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t tr\u00ean 5000 l\u01b0\u1edbi, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 canxi cacbonat ch\u1ee9c n\u0103ng, th\u1ec3 hi\u1ec7n c\u00e1c hi\u1ec7u \u1ee9ng bi\u1ebfn \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 v\u00e0 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n c\u1ea3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp. M\u1eb7c d\u00f9 canxi cacbonat \u1edf quy m\u00f4 nano c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn h\u01a1n, nh\u01b0ng kh\u00f3 kh\u0103n hi\u1ec7n t\u1ea1i trong vi\u1ec7c ph\u00e2n t\u00e1n h\u1ea1n ch\u1ebf hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3, h\u1ea1n ch\u1ebf n\u00f3 \u1edf c\u00e1c k\u1ebft qu\u1ea3 bi\u1ebfn \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1 nh\u01b0 canxi cacbonat 8000 l\u01b0\u1edbi.<\/p>\n\n\n\n

B\u1ea3ng 1: \u1ea2nh h\u01b0\u1edfng c\u1ee7a canxi cacbonat n\u1eb7ng v\u1edbi c\u00e1c k\u00edch th\u01b0\u1edbc h\u1ea1t kh\u00e1c nhau \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u composite PP<\/strong><\/h5>\n\n\n\n
Ch\u1ea5t k\u1ebft d\u00ednh x\u1eed l\u00fd canxi cacbonat n\u1eb7ng (30%) k\u00edch th\u01b0\u1edbc l\u01b0\u1edbi<\/td>2000<\/td>1250<\/td>800<\/td>500<\/td><\/tr>
Ch\u1ec9 s\u1ed1 d\u00f2ng ch\u1ea3y n\u00f3ng ch\u1ea3y (g\/10 ph\u00fat)<\/td>4.0<\/td>5.0<\/td>5.6<\/td>5.5<\/td><\/tr>
\u0110\u1ed9 b\u1ec1n k\u00e9o (MPa)<\/td>19.3<\/td>18.4<\/td>18.7<\/td>18.1<\/td><\/tr>
\u0110\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t (%)<\/td>422<\/td>420<\/td>341<\/td>367<\/td><\/tr>
\u0110\u1ed9 b\u1ec1n u\u1ed1n (MPa)<\/td>28<\/td>28.6<\/td>28.2<\/td>28.4<\/td><\/tr>
M\u00f4 \u0111un u\u1ed1n (MPa)<\/td>1287<\/td>1291<\/td>1303<\/td>1294<\/td><\/tr>
\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp Izod (J\/m)<\/td>113<\/td>89<\/td>86<\/td>78<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Nh\u01b0 th\u1ec3 hi\u1ec7n trong B\u1ea3ng 1, k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn h\u01a1n c\u1ee7a canxi cacbonat d\u1eabn \u0111\u1ebfn t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 va \u0111\u1eadp, \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t, trong khi \u0111\u1ed9 b\u1ec1n u\u1ed1n v\u00e0 m\u00f4 \u0111un u\u1ed1n v\u1eabn t\u01b0\u01a1ng \u0111\u1ed1i kh\u00f4ng \u0111\u1ed5i. Tuy nhi\u00ean, t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u composite gi\u1ea3m theo k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ecbn h\u01a1n.<\/p>\n\n\n\n

Hi\u1ec7u qu\u1ea3 c\u1ee7a x\u1eed l\u00fd b\u1ec1 m\u1eb7t: <\/strong>X\u1eed l\u00fd b\u1ec1 m\u1eb7t canxi cacbonat \u0111\u00fang c\u00e1ch v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp c\u1ee7a v\u1eadt li\u1ec7u composite. G\u1ea7n \u0111\u00e2y, nh\u1eefng ti\u1ebfn b\u1ed9 trong l\u00fd thuy\u1ebft composite h\u1eefu c\u01a1\/v\u00f4 c\u01a1 \u0111\u00e3 bi\u1ebfn canxi cacbonat t\u1eeb m\u1ed9t ch\u1ea5t \u0111\u1ed9n \u0111\u01a1n gi\u1ea3n th\u00e0nh m\u1ed9t v\u1eadt li\u1ec7u \u0111\u1ed9n ch\u1ee9c n\u0103ng m\u1edbi. V\u00ed d\u1ee5, \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp kh\u00eda c\u1ee7a v\u1eadt li\u1ec7u composite polypropylen (PP)\/canxi cacbonat \u0111\u1ed3ng tr\u00f9ng h\u1ee3p c\u00f3 th\u1ec3 t\u0103ng g\u1ea5p \u0111\u00f4i so v\u1edbi nh\u1ef1a c\u01a1 b\u1ea3n.<\/p>\n\n\n\n

3.2 Ng\u0103n ch\u1eb7n kh\u00f3i trong qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y<\/strong><\/h4>\n\n\n\n

Canxi cacbonat th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng ng\u0103n kh\u00f3i tuy\u1ec7t v\u1eddi. \u0110i\u1ec1u n\u00e0y l\u00e0 do kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u1edbi hydro halide trong kh\u00f3i, t\u1ea1o th\u00e0nh canxi clorua \u1ed5n \u0111\u1ecbnh (CaCl\u2082). Do \u0111\u00f3, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ng\u0103n kh\u00f3i trong b\u1ea5t k\u1ef3 lo\u1ea1i polyme n\u00e0o t\u1ea1o ra hydro halide trong qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y, bao g\u1ed3m vinyl clorua, polyethylene chlorosulfonat v\u00e0 cao su chloroprene.<\/p>\n\n\n\n

V\u00ec qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y l\u00e0 ph\u1ea3n \u1ee9ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t gi\u1eefa r\u1eafn v\u00e0 kh\u00ed x\u1ea3y ra tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t r\u1eafn, n\u00ean k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a canxi cacbonat \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong hi\u1ec7u qu\u1ea3 ng\u0103n kh\u00f3i c\u1ee7a n\u00f3. C\u00e1c h\u1ea1t m\u1ecbn h\u01a1n c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn h\u01a1n \u0111\u00e1ng k\u1ec3, gi\u00fap t\u0103ng c\u01b0\u1eddng hi\u1ec7u qu\u1ea3 ng\u0103n kh\u00f3i.<\/p>\n\n\n\n

3.3 Ch\u1ea5t ch\u1ed1ng d\u00ednh<\/strong><\/h4>\n\n\n\n

Phim \u1ed1ng th\u1ed5i ch\u1ee9a canxi cacbonat cho th\u1ea5y \u0111\u1eb7c t\u00ednh m\u1edf tuy\u1ec7t v\u1eddi v\u00e0 ch\u1ed1ng b\u00e1m d\u00ednh trong qu\u00e1 tr\u00ecnh u\u1ed1n. Trong b\u1ed1i c\u1ea3nh n\u00e0y, canxi cacbonat ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n ch\u1ed1ng b\u00e1m d\u00ednh.<\/p>\n\n\n\n

3.4 T\u0103ng \u0111\u1ed9 d\u1eabn nhi\u1ec7t<\/strong><\/h4>\n\n\n\n

Th\u00eam canxi cacbonat l\u00e0m t\u0103ng \u0111\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a m\u00e0ng. Bong b\u00f3ng c\u1ee7a m\u00e0ng th\u1ed5i ngu\u1ed9i nhanh h\u01a1n. \u0110i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y s\u1ea3n xu\u1ea5t v\u00e0 t\u0103ng s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a m\u00e1y \u0111\u00f9n. L\u1ea5y canxi cacbonat nh\u1eb9 25% trong t\u1ea5m PVC l\u00e0m v\u00ed d\u1ee5, ch\u1ec9 m\u1ea5t 3,5 gi\u00e2y \u0111\u1ec3 l\u00e0m n\u00f3ng \u0111\u1ebfn 200\u00b0C. T\u1ea5m PVC nguy\u00ean ch\u1ea5t m\u1ea5t 10,8 gi\u00e2y. \u0110\u1ed9 d\u1eabn nhi\u1ec7t t\u0103ng g\u1ea5p 3 l\u1ea7n.<\/p>\n\n\n\n

3.5 C\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng<\/strong><\/h4>\n\n\n\n

Canxi cacbonat c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng composite, gi\u1ea3m \u0111\u1ed9 nh\u1edbt n\u00f3ng ch\u1ea3y v\u00e0 m\u00f4 men xo\u1eafn c\u1ee7a m\u00e1y \u0111\u00f9n, t\u0103ng s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a m\u00e1y \u0111\u00f9n v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t. C\u00e1c lo\u1ea1i canxi cacbonat kh\u00e1c nhau c\u00f3 t\u00e1c d\u1ee5ng kh\u00e1c nhau \u0111\u1ebfn d\u00f2ng ch\u1ea3y. Th\u1ee9 t\u1ef1 t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u composite c\u1ee5 th\u1ec3 l\u00e0 canxi cacbonat canxi l\u1edbn> canxi cacbonat \u0111\u00e1 c\u1ea9m th\u1ea1ch, canxi cacbonat dolomit> canxi cacbonat canxi nh\u1ecf> canxi cacbonat canxi nh\u1eb9.<\/p>\n\n\n\n

3.6 Hi\u1ec7u su\u1ea5t kh\u1edbp m\u00e0u<\/strong><\/h4>\n\n\n\n

Thay th\u1ebf m\u1ed9t s\u1ed1 s\u1eafc t\u1ed1 tr\u1eafng: Canxi cacbonat c\u00f3 \u0111\u1ed9 tr\u1eafng cao c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t s\u1ed1 s\u1eafc t\u1ed1 tr\u1eafng nh\u01b0 titan dioxit, do \u0111\u00f3 ti\u1ebft ki\u1ec7m h\u00e0m l\u01b0\u1ee3ng titan dioxit \u0111\u1eaft ti\u1ec1n. Canxi cacbonat canxi l\u1edbn l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u1ea7u ti\u00ean v\u00ec \u0111\u1ed9 tr\u1eafng cao v\u00e0 kh\u1ea3 n\u0103ng che ph\u1ee7 cao. L\u00fd do t\u1ea1i sao canxi cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m s\u1eafc t\u1ed1 tr\u1eafng ch\u1ee7 y\u1ebfu l\u00e0 v\u00ec n\u00f3 c\u00f3 m\u1ed9t kh\u1ea3 n\u0103ng che ph\u1ee7 nh\u1ea5t \u0111\u1ecbnh. Kh\u1ea3 n\u0103ng che ph\u1ee7 c\u1ee7a l\u1edbp ph\u1ee7 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn l\u01b0\u1ee3ng s\u01a1n t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u1ee7 \u0111\u1ec1u s\u01a1n l\u00ean b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt th\u1ec3 \u0111\u1ec3 m\u00e0u c\u01a1 b\u1ea3n kh\u00f4ng c\u00f2n xu\u1ea5t hi\u1ec7n n\u1eefa. N\u00f3 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng g\/\u33a1.
Kh\u1ea3 n\u0103ng che ph\u1ee7 c\u1ee7a c\u00e1c ch\u1ea5t t\u1ea1o m\u00e0u kh\u00e1c nhau trong l\u1edbp ph\u1ee7 \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n \u1edf B\u1ea3ng 2:<\/p>\n\n\n\n

B\u1ea3ng 2: Kh\u1ea3 n\u0103ng che ph\u1ee7 c\u1ee7a m\u1ed9t s\u1ed1 s\u1eafc t\u1ed1 v\u00f4 c\u01a1 v\u00e0 h\u1eefu c\u01a1<\/strong><\/h5>\n\n\n\n
T\u00ean s\u1eafc t\u1ed1<\/td>S\u1ee9c m\u1ea1nh ph\u1ee7 (g\/cm)<\/td><\/tr>
Para \u0111\u1ecf (m\u00e0u nh\u1ea1t)<\/td>18.1-16.3<\/td><\/tr>
Para \u0111\u1ecf (m\u00e0u t\u1ed1i)<\/td>17.1-15.0<\/td><\/tr>
H\u1ed3 \u0111\u1ecf c<\/td>23.8-18.8<\/td><\/tr>
\u0110\u00e1 \u0111\u1ecf (h\u1ed3 Ba)<\/td>33.7-21.7<\/td><\/tr>
\u0110\u00e1 \u0111\u1ecf Lithol (h\u1ed3 Ca)<\/td>49.0-33.7<\/td><\/tr>
\u0110\u00e1 ruby lithol<\/td>33.9<\/td><\/tr>
h\u1ed3 \u0111\u1ecf Yanke<\/td>88.5<\/td><\/tr>
Rhodamine Y (k\u1ebft t\u1ee7a tungstat)<\/td>25.1<\/td><\/tr>
Rhodamine B (k\u1ebft t\u1ee7a phosphotungstate)<\/td>16.1<\/td><\/tr>
Toluidine h\u1ea1t d\u1ebb \u0111\u1ecf<\/td>34.8-37.7<\/td><\/tr>
BL \u0111\u1ecf b\u1ec1n m\u00e0u<\/td>12.4<\/td><\/tr>
Titan dioxit<\/td>18.4<\/td><\/tr>
(lo\u1ea1i rutil, lo\u1ea1i anatase)<\/td>19.5<\/td><\/tr>
k\u1ebdm oxit<\/td>24.8<\/td><\/tr>
Bari sulfat<\/td>30.6<\/td><\/tr>
Canxi cacbonat<\/td>31.4<\/td><\/tr>
Hansa v\u00e0ng G<\/td>54.9<\/td><\/tr>
Hansa v\u00e0ng 10G<\/td>58.8<\/td><\/tr>
M\u00e0u cam v\u0129nh c\u1eedu<\/td>29.6<\/td><\/tr>
Xanh malachite<\/td>5.4<\/td><\/tr>
S\u1eafc t\u1ed1 xanh B<\/td>2.7<\/td><\/tr>
Xanh malachite (k\u1ebft t\u1ee7a phosphotungstate)<\/td>7.7<\/td><\/tr>
M\u00e0u xanh malachite<\/td>68.5<\/td><\/tr>
Metyl t\u00edm (k\u1ebft t\u1ee7a phosphotungstate)<\/td>7.6<\/td><\/tr>
Metyl t\u00edm (ch\u1ea5t k\u1ebft t\u1ee7a tanin)<\/td>4.9<\/td><\/tr>
\u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi nhanh m\u00e0u t\u00edm<\/td>10.2<\/td><\/tr>
M\u00e0u xanh phthalocyanine<\/td>4.5<\/td><\/tr>
V\u1eefa k\u1ebdm bari (b\u1ed9t ch\u00ec)<\/td>23.6<\/td><\/tr>
V\u1eefa ch\u00ec (ch\u00ec sunfat c\u01a1 b\u1ea3n)<\/td>26.9<\/td><\/tr>
Antimon trioxit<\/td>22.7<\/td><\/tr>
B\u1ed9t talc<\/td>32.2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Kh\u1ea3 n\u0103ng che ph\u1ee7 c\u1ee7a v\u1eadt li\u1ec7u c\u00f3 li\u00ean quan ch\u1eb7t ch\u1ebd \u0111\u1ebfn chi\u1ebft su\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u0111\u00f3. Nh\u00ecn chung, chi\u1ebft su\u1ea5t cao h\u01a1n d\u1eabn \u0111\u1ebfn kh\u1ea3 n\u0103ng che ph\u1ee7 l\u1edbn h\u01a1n v\u00e0 m\u00e0u tr\u1eafng \u0111\u1eadm h\u01a1n. Chi\u1ebft su\u1ea5t c\u1ee7a nhi\u1ec1u v\u1eadt li\u1ec7u tr\u1eafng kh\u00e1c nhau \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y chi ti\u1ebft trong B\u1ea3ng 3.<\/p>\n\n\n\n

B\u1ea3ng 3: Chi\u1ebft su\u1ea5t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u tr\u1eafng kh\u00e1c nhau<\/strong><\/h5>\n\n\n\n
V\u1eadt li\u1ec7u m\u00e0u tr\u1eafng<\/td>Ch\u1ec9 s\u1ed1 m\u00e0u<\/td>Chi\u1ebft su\u1ea5t<\/td><\/tr>
Titan dioxit (lo\u1ea1i rutil)<\/td>V\u1eefa m\u00e0u 6<\/td>2.70<\/td><\/tr>
B\u1ed9t titan (lo\u1ea1i anatase)<\/td>V\u1eefa m\u00e0u 6<\/td>2.55<\/td><\/tr>
Zirconium oxit<\/td>V\u1eefa m\u00e0u 12<\/td>2.40<\/td><\/tr>
K\u1ebdm sunfua<\/td> <\/td>2.37<\/td><\/tr>
Antimon trioxit<\/td>V\u1eefa m\u00e0u 11<\/td>2.19<\/td><\/tr>
k\u1ebdm oxit<\/td>V\u1eefa m\u00e0u 4<\/td>2.00<\/td><\/tr>
Lithopone (b\u1ed9t k\u1ebdm-bari)<\/td>V\u1eefa m\u00e0u 21<\/td>2.10<\/td><\/tr>
Bari sulfat<\/td>V\u1eefa m\u00e0u 18<\/td>1.64<\/td><\/tr>
Canxi cacbonat<\/td>V\u1eefa m\u00e0u 27<\/td>1.58<\/td><\/tr>
B\u1ed9t talc<\/td>Ch\u1ec9 s\u1ed1 m\u00e0u<\/td>1.54<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00e0u s\u1eafc <\/strong>M\u00e0u tr\u1eafng t\u1ef1 nhi\u00ean c\u1ee7a canxi cacbonat \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng k\u1ebft h\u1ee3p m\u00e0u s\u00e1ng, khi\u1ebfn vi\u1ec7c k\u1ebft h\u1ee3p m\u00e0u s\u00e1ng tr\u1edf n\u00ean kh\u00f3 kh\u0103n. Ngo\u00e0i ra, n\u00f3 c\u00f3 th\u1ec3 l\u00e0m ph\u1ee9c t\u1ea1p vi\u1ec7c k\u1ebft h\u1ee3p c\u00e1c m\u00e0u \u0111en \u0111\u1eb7c bi\u1ec7t.<\/p>\n\n\n\n

T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn \u00e1nh s\u00e1ng m\u00e0u <\/strong>Ngo\u00e0i m\u00e0u tr\u1eafng t\u1ef1 nhi\u00ean, canxi cacbonat c\u00f3 th\u1ec3 bi\u1ec3u hi\u1ec7n c\u00e1c \u00e1nh s\u00e1ng m\u00e0u kh\u00e1c nhau, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a m\u00e0u. \u00c1nh s\u00e1ng m\u00e0u \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c s\u1eafc th\u00e1i b\u1ed5 sung m\u00e0 m\u1ed9t v\u1eadt th\u1ec3 hi\u1ec3n th\u1ecb c\u00f9ng v\u1edbi m\u00e0u ch\u00ednh c\u1ee7a n\u00f3. V\u00ed d\u1ee5, c\u00e1c m\u00e0u b\u1ed5 sung \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y \u1edf c\u00e1c \u0111\u1ea7u \u0111\u1ed1i di\u1ec7n c\u1ee7a quang ph\u1ed5 m\u00e0u; v\u00ed d\u1ee5, m\u00e0u xanh lam \u0111\u01b0\u1ee3c b\u1ed5 sung b\u1edfi m\u00e0u v\u00e0ng. Vi\u1ec7c tr\u1ed9n c\u00e1c m\u00e0u n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra \u00e1nh s\u00e1ng tr\u1eafng, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 trung h\u00f2a \u00e1nh s\u00e1ng m\u00e0u.<\/p>\n\n\n\n

M\u00e0u c\u01a1 b\u1ea3n do canxi cacbonat ph\u00e1t ra thay \u0111\u1ed5i t\u00f9y theo ngu\u1ed3n g\u1ed1c. V\u00ed d\u1ee5:<\/p>\n\n\n\n

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  • Canxi cacbonat t\u1eeb T\u1ee9 Xuy\u00ean c\u00f3 m\u00e0u xanh lam.<\/li>\n\n\n\n
  • Canxi cacbonat t\u1eeb Qu\u1ea3ng T\u00e2y c\u00f3 m\u00e0u \u0111\u1ecf c\u01a1 b\u1ea3n.<\/li>\n\n\n\n
  • Canxi cacbonat t\u1eeb Giang T\u00e2y c\u0169ng c\u00f3 m\u00e0u xanh lam.<\/li>\n<\/ul>\n\n\n\n

    Khi k\u1ebft h\u1ee3p m\u00e0u s\u1eafc, \u00e1nh s\u00e1ng m\u00e0u c\u1ee7a canxi cacbonat ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi s\u1eafc th\u00e1i m\u00e0u ch\u00ednh. V\u00ed d\u1ee5, canxi cacbonat c\u00f3 s\u1eafc xanh c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i s\u1ee9c m\u1ea1nh t\u1ea1o m\u00e0u c\u1ee7a s\u1eafc t\u1ed1 v\u00e0ng. N\u00f3 c\u0169ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 trung h\u00f2a \u00e1nh s\u00e1ng m\u00e0u v\u00e0ng trong c\u00e1c s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

    C\u1ea3i thi\u1ec7n t\u00ecnh tr\u1ea1ng lo\u1ea1n th\u1ecb \u1edf c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a: M\u1eb7c d\u00f9 vi\u1ec7c b\u1ed5 sung canxi cacbonat kh\u00f4ng l\u00e0m t\u0103ng \u0111\u1ed9 b\u00f3ng c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a nh\u01b0ng n\u00f3 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u00f3ng hi\u1ec7u qu\u1ea3, t\u1ea1o hi\u1ec7u \u1ee9ng m\u1edd.<\/p>\n\n\n\n

    3.7 T\u0103ng kh\u1ea3 n\u0103ng th\u1edf<\/strong><\/h4>\n\n\n\n

    M\u00e0ng nh\u1ef1a ch\u1ee9a canxi cacbonat t\u1ea1o ra c\u00e1c l\u1ed7 nh\u1ecf trong qu\u00e1 tr\u00ecnh k\u00e9o gi\u00e3n, cho ph\u00e9p h\u01a1i n\u01b0\u1edbc \u0111i qua \u0111\u1ed3ng th\u1eddi ng\u0103n n\u01b0\u1edbc l\u1ecfng th\u1ea5m v\u00e0o. \u0110\u1eb7c \u0111i\u1ec3m n\u00e0y khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a tho\u00e1ng kh\u00ed. \u0110\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1i \u01b0u, ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng canxi cacbonat c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t 3000 l\u01b0\u1edbi ho\u1eb7c m\u1ecbn h\u01a1n, v\u1edbi ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t h\u1eb9p.<\/p>\n\n\n\n

    3.8 Th\u00fac \u0111\u1ea9y hi\u1ec7u su\u1ea5t ph\u00e2n h\u1ee7y c\u1ee7a s\u1ea3n ph\u1ea9m<\/strong><\/h4>\n\n\n\n

    Khi ch\u00f4n t\u00fai nh\u1ef1a polyethylene ch\u1ee9a canxi cacbonat, canxi cacbonat c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi carbon dioxide v\u00e0 n\u01b0\u1edbc \u0111\u1ec3 t\u1ea1o th\u00e0nh canxi bicarbonate h\u00f2a tan trong n\u01b0\u1edbc (Ca(HCO\u2083)\u2082), c\u00f3 th\u1ec3 tho\u00e1t ra kh\u1ecfi m\u00e0ng. Qu\u00e1 tr\u00ecnh n\u00e0y t\u1ea1o ra c\u00e1c l\u1ed7 nh\u1ecf tr\u00ean m\u00e0ng, t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u1edbi kh\u00f4ng kh\u00ed v\u00e0 vi sinh v\u1eadt, do \u0111\u00f3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

    3.9 Vai tr\u00f2 h\u00ecnh th\u00e0nh h\u1ea1t nh\u00e2n c\u1ee7a canxi cacbonat<\/strong><\/h4>\n\n\n\n

    Nano canxi cacbonat (CaCO\u2083) \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh k\u1ebft tinh c\u1ee7a polypropylen, l\u00e0m t\u0103ng h\u00e0m l\u01b0\u1ee3ng tinh th\u1ec3 \u03b2 v\u00e0 do \u0111\u00f3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp c\u1ee7a polypropylen.<\/p>\n\n\n\n

    3.10 Gi\u1ea3m s\u1ef1 h\u1ea5p th\u1ee5 n\u01b0\u1edbc trong nh\u1ef1a PA<\/strong><\/h4>\n\n\n\n

    \u0110\u1ed9 h\u1ea5p th\u1ee5 n\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u composite polyamide (PA)\/canxi cacbonat th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi nh\u1ef1a PA nguy\u00ean ch\u1ea5t. V\u00ed d\u1ee5, vi\u1ec7c k\u1ebft h\u1ee3p canxi cacbonat 25% v\u00e0o PA6 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 h\u1ea5p th\u1ee5 n\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u composite xu\u1ed1ng 56%.<\/p>\n\n\n\n

    3.11 C\u1ea3i thi\u1ec7n t\u00ednh ch\u1ea5t b\u1ec1 m\u1eb7t<\/strong><\/h4>\n\n\n\n

    Canxi cacbonat c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt li\u1ec7u composite. N\u00f3 c\u00f3 \u0111\u1eb7c t\u00ednh h\u1ea5p ph\u1ee5 tuy\u1ec7t v\u1eddi. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng m\u1ea1 \u0111i\u1ec7n, ph\u1ee7 v\u00e0 in c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

    3.12 T\u00e1c \u0111\u1ed9ng c\u1ee7a canxi cacbonat l\u00ean b\u1ecdt<\/strong><\/h4>\n\n\n\n

    \u1ea2nh h\u01b0\u1edfng c\u1ee7a canxi cacbonat \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1ea1o b\u1ecdt c\u1ee7a v\u1eadt li\u1ec7u nh\u1ef1a r\u1ea5t ph\u1ee9c t\u1ea1p v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea3 k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 l\u01b0\u1ee3ng s\u1eed d\u1ee5ng:<\/p>\n\n\n\n

    K\u00edch th\u01b0\u1edbc canxi cacbonat:<\/strong> Khi k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a canxi cacbonat ph\u00f9 h\u1ee3p v\u1edbi ch\u1ea5t t\u1ea1o b\u1ecdt, n\u00f3 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t t\u1ea1o h\u1ea1t. Qu\u00e1 tr\u00ecnh n\u00e0y \u1ea3nh h\u01b0\u1edfng t\u00edch c\u1ef1c \u0111\u1ebfn qu\u00e1 tr\u00ecnh t\u1ea1o b\u1ecdt. K\u00edch th\u01b0\u1edbc h\u1ea1t l\u00fd t\u01b0\u1edfng l\u00e0 nh\u1ecf h\u01a1n 5 \u03bcm v\u00e0 n\u00ean tr\u00e1nh k\u1ebft t\u1ee5. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t v\u01b0\u1ee3t qu\u00e1 10 \u03bcm ho\u1eb7c qu\u00e1 m\u1ecbn v\u00e0 k\u1ebft t\u1ee5, n\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn qu\u00e1 tr\u00ecnh t\u1ea1o b\u1ecdt. N\u00ean s\u1eed d\u1ee5ng canxi cacbonat 3000 l\u01b0\u1edbi (kho\u1ea3ng 4 \u03bcm) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u00edch th\u01b0\u1edbc d\u01b0\u1edbi 5 \u03bcm m\u00e0 kh\u00f4ng b\u1ecb k\u1ebft t\u1ee5.<\/p>\n\n\n\n

    C\u00e1c c\u01a1 ch\u1ebf m\u00e0 canxi cacbonat th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh t\u1ea1o b\u1ecdt bao g\u1ed3m:<\/h5>\n\n\n\n

    Ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n t\u1ea1o h\u1ea1t b\u1eb1ng c\u00e1ch h\u1ea5p th\u1ee5 kh\u00ed t\u1ea1o b\u1ecdt \u0111\u1ec3 t\u1ea1o ra h\u1ea1t nh\u00e2n bong b\u00f3ng, do \u0111\u00f3 ki\u1ec3m so\u00e1t s\u1ed1 l\u01b0\u1ee3ng l\u1ed7 r\u1ed7ng v\u00e0 tinh ch\u1ec9nh k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

    Cung c\u1ea5p \u0111\u1ed9 c\u1ee9ng l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh bi\u1ebfn d\u1ea1ng v\u00e0 t\u00ednh di \u0111\u1ed9ng c\u1ee7a ch\u1ea5t n\u00f3ng ch\u1ea3y, gi\u00fap \u1ee9c ch\u1ebf s\u1ef1 gi\u00e3n n\u1edf l\u1ed7 ch\u00e2n l\u00f4ng nhanh ch\u00f3ng v\u00e0 cho ph\u00e9p k\u00edch th\u01b0\u1edbc l\u1ed7 ch\u00e2n l\u00f4ng m\u1ecbn h\u01a1n. Nano-canxi cacbonat th\u1eadm ch\u00ed c\u00f3 th\u1ec3 t\u1ea1o ra nh\u1ef1a b\u1ecdt vi x\u1ed1p do k\u00edch th\u01b0\u1edbc nh\u1ecf c\u1ee7a t\u00e1c nh\u00e2n t\u1ea1o h\u1ea1t.<\/p>\n\n\n\n

    L\u01b0\u1ee3ng canxi cacbonat \u0111\u01b0\u1ee3c th\u00eam v\u00e0o:<\/strong> L\u01b0\u1ee3ng \u0111i\u1ec1n t\u1ed1i \u01b0u cho canxi cacbonat \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng t\u1ea1o b\u1ecdt th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 10% \u0111\u1ebfn 30%. N\u1ebfu th\u00eam qu\u00e1 \u00edt. S\u1ebd kh\u00f4ng c\u00f3 \u0111\u1ee7 \u0111i\u1ec3m t\u1ea1o b\u1ecdt, d\u1eabn \u0111\u1ebfn t\u1ef7 l\u1ec7 t\u1ea1o b\u1ecdt th\u1ea5p. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u, trong khi t\u1ea1o ra nhi\u1ec1u \u0111i\u1ec3m t\u1ea1o b\u1ecdt h\u01a1n, c\u01b0\u1eddng \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u00f3 th\u1ec3 gi\u1ea3m qu\u00e1 m\u1ee9c. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn nhi\u1ec1u bong b\u00f3ng v\u1ee1 v\u00e0 t\u1ef7 l\u1ec7 t\u1ea1o b\u1ecdt gi\u1ea3m.<\/p>\n\n\n\n

    \u0110\u1ed9 ph\u00e2n t\u00e1n c\u1ee7a Canxi Cacbonat:<\/strong> Ph\u00e2n t\u00e1n canxi cacbonat \u0111\u1ec1u l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u00fac \u0111\u1ea9y ch\u1ea5t l\u01b0\u1ee3ng t\u1ea1o b\u1ecdt. Ph\u00e2n ph\u1ed1i canxi cacbonat \u0111\u1ed3ng \u0111\u1ec1u \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 s\u1ef1 k\u1ebft t\u1ee5. N\u1ebfu k\u00edch th\u01b0\u1edbc h\u1ea1t n\u1eb1m trong ph\u1ea1m vi 5 \u03bcm, n\u00f3 s\u1ebd ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u01b0 m\u1ed9t t\u00e1c nh\u00e2n t\u1ea1o h\u1ea1t m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn qu\u00e1 tr\u00ecnh t\u1ea1o b\u1ecdt.<\/p>\n\n\n\n

    H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ee7a canxi cacbonat:<\/strong> N\u1ebfu h\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc trong b\u1ed9t v\u00f4 c\u01a1 d\u01b0\u1edbi 0,5% th\u00ec s\u1ebd c\u00f3 t\u00e1c \u0111\u1ed9ng t\u1ed1i thi\u1ec3u \u0111\u1ebfn qu\u00e1 tr\u00ecnh t\u1ea1o b\u1ecdt.<\/p>\n\n\n\n

    C\u00e1c thu\u1ed9c t\u00ednh kh\u00e1c:<\/strong> Canxi cacbonat c\u0169ng g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u composite.<\/p>\n\n\n\n

    S\u1eeda \u0111\u1ed5i ti\u00eau c\u1ef1c c\u1ee7a ch\u1ea5t \u0111\u1ed9n<\/strong><\/h2>\n\n\n\n

    1. T\u0103ng m\u1eadt \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p<\/strong><\/h3>\n\n\n\n

    Vi\u1ec7c b\u1ed5 sung canxi cacbonat v\u00e0o nh\u1ef1a d\u1eabn \u0111\u1ebfn s\u1ef1 gia t\u0103ng nhanh ch\u00f3ng m\u1eadt \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u composite. \u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c b\u00e1n theo tr\u1ecdng l\u01b0\u1ee3ng, chi\u1ec1u d\u00e0i ho\u1eb7c di\u1ec7n t\u00edch, m\u1eadt \u0111\u1ed9 t\u0103ng n\u00e0y c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf v\u1ec1 chi ph\u00ed. M\u1ee9c \u0111\u1ed9 t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng kh\u00e1c nhau gi\u1eefa c\u00e1c lo\u1ea1i canxi cacbonat kh\u00e1c nhau, v\u1edbi th\u1ee9 t\u1ef1 m\u1eadt \u0111\u1ed9 c\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n\n\n\n

    Canxi cacbonat nh\u1eb9 < Canxi cacbonat canxi canxi l\u1edbn < Canxi cacbonat \u0111\u00e1 hoa < Canxi cacbonat dolomit < Canxi cacbonat canxi canxi nh\u1ecf.<\/p>\n\n\n\n

    L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3m m\u1eadt \u0111\u1ed9 c\u1ee7a nh\u1ef1a t\u1ed5ng h\u1ee3p canxi cacbonat:<\/strong><\/p>\n\n\n\n

    1.1 S\u1ea3n ph\u1ea9m k\u00e9o gi\u00e3n \u0111\u1ec3 gi\u1ea3m c\u00e2n:<\/strong><\/h4>\n\n\n\n

    K\u00e9o gi\u00e3n t\u1ea1o ra c\u00e1c kho\u1ea3ng c\u00e1ch bi\u1ebfn d\u1ea1ng gi\u1eefa nh\u1ef1a v\u00e0 canxi cacbonat, l\u00e0m gi\u1ea3m nh\u1eb9 m\u1eadt \u0111\u1ed9 t\u1ed5ng th\u1ec3. V\u00ed d\u1ee5, m\u00e0ng polyethylene k\u00e9o gi\u00e3n ch\u1ee9a canxi cacbonat 30% c\u00f3 m\u1eadt \u0111\u1ed9 l\u00e0 1,1 g\/cm\u00b3, so v\u1edbi 1,2 g\/cm\u00b3 c\u1ee7a phi\u00ean b\u1ea3n kh\u00f4ng k\u00e9o gi\u00e3n. K\u1ef9 thu\u1eadt n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho nhi\u1ec1u s\u1ea3n ph\u1ea9m nh\u1ef1a kh\u00e1c nhau nh\u01b0 d\u00e2y d\u1eb9t, m\u00e0ng th\u1ed5i, b\u0103ng bu\u1ed9c v\u00e0 m\u00e0ng n\u01b0\u1edbc m\u1eaft.<\/p>\n\n\n\n

    1.2 S\u1ea3n ph\u1ea9m t\u1ea1o b\u1ecdt si\u00eau nh\u1ecf \u0111\u1ec3 gi\u1ea3m c\u00e2n:<\/strong><\/h4>\n\n\n\n

    S\u1eed d\u1ee5ng \u0111\u1ed9 \u1ea9m \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 b\u1edfi ch\u1ea5t \u0111\u1ed9n \u0111\u1ec3 t\u1ea1o b\u1ecdt si\u00eau nh\u1ecf c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 m\u1eadt \u0111\u1ed9 m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t. V\u00ed d\u1ee5, v\u1eadt li\u1ec7u composite canxi cacbonat nh\u1eb9 50% c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 t\u1ed1i thi\u1ec3u l\u00e0 0,7 g\/cm\u00b3 khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t m\u00e0ng, th\u1ec3 hi\u1ec7n m\u1ee9c gi\u1ea3m 45%.<\/p>\n\n\n\n

    1.3 \u0110\u1ec7m r\u1ed7ng \u0111\u1ec3 gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng:<\/strong><\/h4>\n\n\n\n

    S\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 r\u1ed7ng b\u1ed9t v\u00f4 c\u01a1 \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed cho ph\u00e9p s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m canxi cacbonat r\u1ed7ng, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 m\u1eadt \u0111\u1ed9. M\u1eadt \u0111\u1ed9 c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m r\u1ed7ng n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng c\u00f2n kho\u1ea3ng 0,7 g\/cm\u00b3.<\/p>\n\n\n\n

    2. Gi\u1ea3m \u0111\u1ed9 b\u00f3ng trong v\u1eadt li\u1ec7u composite<\/strong><\/h3>\n\n\n\n

    Ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf bi\u1ebfn v\u00e0 lo\u1ea1i canxi cacbonat \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t c\u1ee7a s\u1ea3n ph\u1ea9m composite. Th\u1ee9 t\u1ef1 \u0111\u1ed9 b\u00f3ng c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u composite kh\u00e1c nhau nh\u01b0 sau:<\/p>\n\n\n\n

      \n
    • Quy tr\u00ecnh \u01b0\u1edbt > Quy tr\u00ecnh kh\u00f4<\/li>\n\n\n\n
    • Canxi cacbonat nh\u1eb9 > Canxi cacbonat canxi c\u1ee1 l\u1edbn > Canxi cacbonat \u0111\u00e1 hoa > Canxi cacbonat canxi c\u1ee1 nh\u1ecf > Canxi cacbonat dolomit.<\/li>\n<\/ul>\n\n\n\n

      3. Gi\u1ea3m \u0111\u1ed9 trong su\u1ed1t c\u1ee7a v\u1eadt li\u1ec7u composite<\/strong><\/h3>\n\n\n\n

      Canxi cacbonat c\u00f3 chi\u1ebft su\u1ea5t kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c lo\u1ea1i nh\u1ef1a th\u00f4ng th\u01b0\u1eddng nh\u01b0 polyethylene v\u00e0 polypropylene. Do \u0111\u00f3, ch\u1ea5t \u0111\u1ed9n canxi cacbonat c\u00f3 k\u00edch th\u01b0\u1edbc th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn \u0111\u1ed9 trong su\u1ed1t c\u1ee7a m\u00e0ng phim. Ch\u1ec9 c\u00f3 nano-canxi cacbonat, c\u00f3 k\u00edch th\u01b0\u1edbc d\u01b0\u1edbi 200 nanomet, m\u1edbi c\u00f3 th\u1ec3 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 trong su\u1ed1t c\u1ee7a v\u1eadt li\u1ec7u composite. S\u00f3ng \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 b\u1ecf qua hi\u1ec7u qu\u1ea3 c\u00e1c h\u1ea1t nh\u1ecf nh\u01b0 v\u1eady.<\/p>\n\n\n\n

      4. Gi\u1ea3m \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t trong v\u1eadt li\u1ec7u composite<\/strong><\/h3>\n\n\n\n

      \u0110\u1ed9 c\u1ee9ng cao c\u1ee7a canxi cacbonat c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo ban \u0111\u1ea7u c\u1ee7a v\u1eadt li\u1ec7u composite. \u0110\u1ed9 c\u1ee9ng t\u0103ng n\u00e0y l\u00e0m gi\u1ea3m t\u00ednh di \u0111\u1ed9ng c\u1ee7a c\u00e1c chu\u1ed7i \u0111\u1ea1i ph\u00e2n t\u1eed, d\u1eabn \u0111\u1ebfn gi\u1ea3m \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n

      5. Gi\u1ea3m \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp<\/strong><\/h3>\n\n\n\n

      Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, vi\u1ec7c b\u1ed5 sung canxi cacbonat c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp trong v\u1eadt li\u1ec7u composite. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t \u0111\u00fang n\u1ebfu c\u00e1c h\u1ea1t canxi cacbonat qu\u00e1 l\u1edbn ho\u1eb7c n\u1ebfu x\u1eed l\u00fd b\u1ec1 m\u1eb7t canxi cacbonat kh\u00f4ng \u0111\u1ee7. S\u1ef1 suy gi\u1ea3m \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t th\u01b0\u1eddng th\u1ea5y \u1edf \u0111\u1ed9 b\u1ec1n k\u00e9o.<\/p>\n\n\n\n

      6. Hi\u1ec7n t\u01b0\u1ee3ng t\u0103ng c\u0103ng th\u1eb3ng l\u00e0m tr\u1eafng da<\/strong><\/h3>\n\n\n\n

      Khi b\u1ea1n th\u00eam nhi\u1ec1u canxi cacbonat v\u00e0o nh\u1ef1a, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c kho\u1ea3ng h\u1edf v\u00e0 v\u1ec7t b\u1ea1c khi s\u1ea3n ph\u1ea9m b\u1ecb k\u00e9o c\u0103ng. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng l\u00e0m tr\u1eafng do \u1ee9ng su\u1ea5t c\u1ee7a nh\u1ef1a.<\/p>\n\n\n\n

      7. T\u0103ng t\u1ed1c \u0111\u1ed9 l\u00e3o h\u00f3a s\u1ea3n ph\u1ea9m<\/strong><\/h3>\n\n\n\n

      T\u1ea5t c\u1ea3 c\u00e1c v\u1eadt li\u1ec7u b\u1ed9t v\u00f4 c\u01a1, bao g\u1ed3m canxi cacbonat, \u0111\u1ec1u c\u00f3 th\u1ec3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a c\u1ee7a v\u1eadt li\u1ec7u composite, d\u1eabn \u0111\u1ebfn gi\u1ea3m tu\u1ed5i th\u1ecd v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

      8. Gi\u1ea3m \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft gi\u1eefa c\u00e1c v\u1eadt li\u1ec7u<\/strong><\/h3>\n\n\n\n

      Vi\u1ec7c s\u1eed d\u1ee5ng canxi cacbonat c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 li\u00ean k\u1ebft c\u1ee7a m\u00e0ng phim, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n h\u00e0n nhi\u1ec7t v\u00e0 c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n h\u00e0n c\u1ee7a \u1ed1ng.<\/p>","protected":false},"excerpt":{"rendered":"

      Nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 ch\u1ebf bi\u1ebfn canxi cacbonat \u0111\u00e3 gi\u00fap n\u00f3 ph\u00e1t tri\u1ec3n t\u1eeb ch\u1ea5t \u0111\u1ed9n truy\u1ec1n th\u1ed1ng th\u00e0nh ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh. S\u1ef1 ph\u00e1t tri\u1ec3n n\u00e0y cho ph\u00e9p gi\u1ea3m chi ph\u00ed s\u1ea3n ph\u1ea9m \u0111\u1ed3ng th\u1eddi n\u00e2ng cao [\u2026]<\/p>","protected":false},"author":2,"featured_media":14798,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42],"tags":[],"class_list":["post-14796","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"\nComposite Materials: The Transformation of Calcium Carbonate from Traditional Filler to Innovative Modifier - 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