{"id":16141,"date":"2025-10-21T06:28:48","date_gmt":"2025-10-21T06:28:48","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16141"},"modified":"2025-10-21T06:29:07","modified_gmt":"2025-10-21T06:29:07","slug":"synergistic-control-mechanisms-of-inorganic-powders-on-coating-optical-properties","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/fr\/synergistic-control-mechanisms-of-inorganic-powders-on-coating-optical-properties\/","title":{"rendered":"M\u00e9canismes de contr\u00f4le synerg\u00e9tique des poudres inorganiques sur les propri\u00e9t\u00e9s optiques des rev\u00eatements"},"content":{"rendered":"<p>Ces derni\u00e8res ann\u00e9es, la concurrence f\u00e9roce sur le march\u00e9 a pouss\u00e9 les entreprises \u00e0 rechercher des solutions optimales pour r\u00e9duire leurs co\u00fbts et am\u00e9liorer leur efficacit\u00e9. La r\u00e9duction des co\u00fbts techniques gr\u00e2ce \u00e0 la technologie de compoundage des charges est devenue une strat\u00e9gie courante dans l&#039;industrie des rev\u00eatements. Le choix des poudres est donc crucial. Aujourd&#039;hui, nous commencerons notre analyse du point de vue des poudres min\u00e9rales elles-m\u00eames.<\/p>\n\n\n\n<p>Dans les syst\u00e8mes de rev\u00eatement, la transparence du film est un indicateur de performance essentiel qui d\u00e9termine directement l&#039;attrait visuel et l&#039;aptitude \u00e0 l&#039;application du rev\u00eatement. Son essence optique est d\u00e9termin\u00e9e par la correspondance de l&#039;indice de r\u00e9fraction entre le liant r\u00e9sineux et les charges min\u00e9rales inorganiques. Lorsque la diff\u00e9rence d&#039;indice de r\u00e9fraction entre la charge et la r\u00e9sine est \u00e9gale \u00e0 |\u0394n| \u2264 0,03, on obtient un syst\u00e8me hautement transparent avec une transmittance lumineuse &gt; 90% et un voile &lt; 5%. \u00c0 l&#039;inverse, lorsque |\u0394n| &gt; 0,1, la r\u00e9flexion de l&#039;interface s&#039;intensifie, entra\u00eenant un blanchiment important et une forte augmentation du voile.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"543\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-1024x543.webp\" alt=\"\" class=\"wp-image-16142\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-1024x543.webp 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-300x159.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-768x407.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-18x10.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating-600x318.webp 600w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/Coating.webp 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-0878e335165253edf31fb6e418944fa6\">I. Caract\u00e9ristiques de la poudre<\/h2>\n\n\n\n<p class=\"has-ast-global-color-0-color has-text-color has-link-color wp-elements-494da1c53443a3999d8f74ab38c523ea\"><strong>UN.<\/strong> <strong>Adaptation de l&#039;indice de r\u00e9fraction<\/strong><\/p>\n\n\n\n<p>La diff\u00e9rence d&#039;indice de r\u00e9fraction entre la poudre et le liant r\u00e9sineux affecte directement la transparence du mat\u00e9riau composite. Lorsque cette diff\u00e9rence est inf\u00e9rieure \u00e0 0,03 (par exemple, l&#039;indice de r\u00e9fraction d&#039;une poudre transparente est d&#039;environ 1,54, proche de celui de la r\u00e9sine), la diffusion lumineuse \u00e0 l&#039;interface peut diminuer, permettant d&#039;obtenir une transparence ou une transmission lumineuse \u00e9lev\u00e9es. Le choix du min\u00e9ral appropri\u00e9 en fonction de l&#039;indice de r\u00e9fraction du syst\u00e8me r\u00e9sineux peut am\u00e9liorer la transparence ou le pouvoir masquant.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type de r\u00e9sine<\/strong><strong><\/strong><\/td><td><strong>Indice de r\u00e9fraction<\/strong><strong><\/strong><\/td><\/tr><tr><td>PMMA<strong><\/strong><\/td><td>1.49<strong><\/strong><\/td><\/tr><tr><td>PS<strong><\/strong><\/td><td>1.59<strong><\/strong><\/td><\/tr><tr><td>PC<strong><\/strong><\/td><td>1.58<strong><\/strong><\/td><\/tr><tr><td>R\u00e9sine \u00e9poxy<\/td><td>1.55-1.60<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Mat\u00e9riel<\/strong><strong><\/strong><\/td><td><strong>Indice de r\u00e9fraction<\/strong><strong><\/strong><\/td><\/tr><tr><td>Air<strong><\/strong><\/td><td>1.00<strong><\/strong><\/td><\/tr><tr><td>Eau<strong><\/strong><\/td><td>1.33<strong><\/strong><\/td><\/tr><tr><td>Talc<strong><\/strong><\/td><td>1.49<strong><\/strong><\/td><\/tr><tr><td>Carbonate de calcium<strong><\/strong><\/td><td>1.63<strong><\/strong><\/td><\/tr><tr><td>Sulfate de baryum<strong><\/strong><\/td><td>1.64<strong><\/strong><\/td><\/tr><tr><td>Lithopone<strong><\/strong><\/td><td>1.84<strong><\/strong><\/td><\/tr><tr><td>Poudre transparente<strong><\/strong><\/td><td>1.54<strong><\/strong><\/td><\/tr><tr><td>Dioxyde de silicium<strong><\/strong><\/td><td>1.41-1.49<strong><\/strong><\/td><\/tr><tr><td>Dioxyde de titane<strong><\/strong><\/td><td>2.55-2.71<strong><\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-ast-global-color-0-color has-text-color has-link-color wp-elements-61659248ecd4c4952d84219ebef22228\"><strong>Diff\u00e9rences de transparence des diff\u00e9rentes poudres min\u00e9rales dans la peinture acrylique (papier cartonn\u00e9)<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"492\" height=\"341\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/6f6cc49620b1bd41a01bcb5cc9d5879a_\u526f\u672c.webp\" alt=\"\" class=\"wp-image-16143\" style=\"width:648px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/6f6cc49620b1bd41a01bcb5cc9d5879a_\u526f\u672c.webp 492w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/6f6cc49620b1bd41a01bcb5cc9d5879a_\u526f\u672c-300x208.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/6f6cc49620b1bd41a01bcb5cc9d5879a_\u526f\u672c-18x12.webp 18w\" sizes=\"(max-width: 492px) 100vw, 492px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td>Solution de r\u00e9sine<\/td><td>Poudre transparente<\/td><td>Poudre de talc<\/td><td>Carbonate de calcium<\/td><td>Sulfate de baryum<\/td><td>Dioxyde de titane<\/td><\/tr><tr><td><strong>Valeur L (fond noir)<\/strong><\/td><td>29.22<\/td><td>29.87<\/td><td>31.89<\/td><td>33.12<\/td><td>30.99<\/td><td>91.76<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Remarque\u00a0: Le film de peinture a \u00e9t\u00e9 appliqu\u00e9 sur du papier cartonn\u00e9 noir et la valeur L a \u00e9t\u00e9 mesur\u00e9e. Une valeur inf\u00e9rieure indique une meilleure transparence.<\/p>\n\n\n\n<p class=\"has-ast-global-color-0-color has-text-color has-link-color wp-elements-df05468feee2f9aeb28298268d871c57\"><strong>Diff\u00e9rences de transparence des diff\u00e9rentes poudres min\u00e9rales dans la peinture acrylique (film mince)<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-1024x608.webp\" alt=\"\" class=\"wp-image-16144\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-1024x608.webp 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-300x178.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-768x456.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-1536x913.webp 1536w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-2048x1217.webp 2048w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-18x12.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/c41c78716253a2e4ae7a6d730561595b_\u526f\u672c-600x356.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td>Solution de r\u00e9sine<\/td><td>Poudre transparente<\/td><td>Talc<\/td><td>Carbonate de calcium<\/td><td>Sulfate de baryum<\/td><td>Dioxyde de titane<\/td><\/tr><tr><td>Transmission lumineuse (%)<\/td><td>94.85<\/td><td>93.90<\/td><td>92.40<\/td><td>90.21<\/td><td>92.91<\/td><td>18.46<\/td><\/tr><tr><td>Clart\u00e9 de l&#039;image (%)<\/td><td>99.41<\/td><td>12.64<\/td><td>13.49<\/td><td>7.77<\/td><td>10.52<\/td><td>9.17<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-c7b97667320efec7e53b835e86b111a6\"><strong>II. S\u00e9lection optimale des sources min\u00e9rales<\/strong><\/h2>\n\n\n\n<p>M\u00eame pour un m\u00eame min\u00e9ral, des \u00e9chantillons d&#039;origines diff\u00e9rentes peuvent pr\u00e9senter des diff\u00e9rences significatives de transparence. Les raisons incluent le milieu de formation, la teneur en impuret\u00e9s et les processus g\u00e9ologiques ult\u00e9rieurs. Des oligo-\u00e9l\u00e9ments ou des inclusions peuvent \u00eatre m\u00e9lang\u00e9s lors de la formation du min\u00e9ral\u00a0; la stabilit\u00e9 du milieu de formation affecte \u00e9galement la structure cristalline\u00a0; et le fait que le min\u00e9ral ait subi des changements g\u00e9ologiques ayant alt\u00e9r\u00e9 sa structure interne.<\/p>\n\n\n\n<p>De ce point de vue, le choix d&#039;une poudre issue d&#039;une source min\u00e9rale de haute qualit\u00e9 pour les rev\u00eatements peut accro\u00eetre consid\u00e9rablement l&#039;avantage de la transparence. La gamme de talcs transparents de notre entreprise est \u00e9labor\u00e9e \u00e0 partir de min\u00e9raux de premi\u00e8re qualit\u00e9 s\u00e9lectionn\u00e9s. \u00c0 taux d&#039;ajout constant, la transparence et la clart\u00e9 globales sont nettement am\u00e9lior\u00e9es. Utilis\u00e9 dans les rev\u00eatements pour bois \u00e0 base d&#039;eau, le produit fini pr\u00e9sente un grain de bois net, une surface lisse et une bonne pon\u00e7abilit\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"334\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/028f84443c858e1f79d0b432c168fe25.webp\" alt=\"\" class=\"wp-image-16145\" style=\"width:665px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/028f84443c858e1f79d0b432c168fe25.webp 477w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/028f84443c858e1f79d0b432c168fe25-300x210.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/10\/028f84443c858e1f79d0b432c168fe25-18x12.webp 18w\" sizes=\"(max-width: 477px) 100vw, 477px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-5f3dbbe1186275a633bc15da82c2aca6\">III. Limitations et probl\u00e8mes potentiels\u00a0: impact n\u00e9gatif de la duret\u00e9 sur la pon\u00e7abilit\u00e9<\/h2>\n\n\n\n<p>La plupart des charges transparentes pr\u00e9sentent une duret\u00e9 \u00e9lev\u00e9e. Par exemple, bien que le dioxyde de silicium (en particulier le quartz cristallin) soit un min\u00e9ral transparent, sa duret\u00e9 Mohs est d&#039;environ 7, ce qui le classe parmi les charges min\u00e9rales \u00e0 duret\u00e9 \u00e9lev\u00e9e. Ajout\u00e9 aux rev\u00eatements, s&#039;il peut am\u00e9liorer la transparence du film, il augmente consid\u00e9rablement la difficult\u00e9 de pon\u00e7age, ce qui r\u00e9duit l&#039;efficacit\u00e9 du pon\u00e7age ou compromet le liss\u00e9 de la surface, et augmente la consommation de consommables de pon\u00e7age comme le papier de verre. De plus, les poudres \u00e0 duret\u00e9 \u00e9lev\u00e9e peuvent \u00e9galement entra\u00eener l&#039;usure des \u00e9quipements de production de rev\u00eatements (comme les lames de m\u00e9langeur).<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-vivid-red-color has-text-color has-link-color wp-elements-812dfb688c28153e5689f4be647bb2e2\">\u00c0 propos d&#039;Epic Powder Machinery<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Obtention d&#039;une poudre de carbone poreuse ultrafine gr\u00e2ce \u00e0 la technologie EPIC Jet Mill\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/rLbzG8YsJdo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.epicmicron.com\/fr\/products\/\">Machines \u00e0 poudre \u00e9piques<\/a> is a leading company specializing in the research, development, and manufacturing of advanced powder processing equipment. We provide comprehensive solutions for size reduction, classification, modification, and coating of various industrial powders, including minerals, chemicals, and pharmaceuticals. If you&#8217;re interested,lml feel free to contact us and learn more about our products.<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f15081-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"15081\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/posts\/16141#wpcf7-f15081-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/16141#wpcf7-f15081-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"15081\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.5\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f15081-o1\" \/><input 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