{"id":15019,"date":"2025-03-10T09:22:44","date_gmt":"2025-03-10T09:22:44","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=15019"},"modified":"2025-03-25T00:18:16","modified_gmt":"2025-03-25T00:18:16","slug":"application-of-magnesium-hydroxide-in-rigid-polyvinyl-chloride-flame-retardant-sheets","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/fr\/application-of-magnesium-hydroxide-in-rigid-polyvinyl-chloride-flame-retardant-sheets\/","title":{"rendered":"Application de l&#039;hydroxyde de magn\u00e9sium dans les feuilles ignifuges rigides en chlorure de polyvinyle"},"content":{"rendered":"<p>Le polychlorure de vinyle (PVC) est un plastique thermoplastique \u00e0 usage g\u00e9n\u00e9ral. Les fabricants l&#039;utilisent largement dans les mat\u00e9riaux de construction en raison de ses excellentes propri\u00e9t\u00e9s m\u00e9caniques, de sa bonne r\u00e9sistance \u00e0 la corrosion, de ses propri\u00e9t\u00e9s anti-vieillissement et de son caract\u00e8re ignifuge. Bien que le PVC rigide ait de meilleures propri\u00e9t\u00e9s ignifuges que les mat\u00e9riaux en PVC souple en raison de la faible quantit\u00e9 de <a href=\"https:\/\/en.wikipedia.org\/wiki\/Plasticizer\">plastifiant<\/a> En outre, il doit encore \u00eatre am\u00e9lior\u00e9 en termes de retardateur de flamme et de suppression de fum\u00e9e. En effet, le PVC contient du chlore, qui peut facilement produire une grande quantit\u00e9 de gaz acides nocifs lors de la combustion. Le prix \u00e9lev\u00e9 de la plupart des retardateurs de flamme et leur processus de pr\u00e9paration complexe rendent la production de masse difficile, de sorte que tr\u00e8s peu d&#039;entre eux parviennent \u00e0 une v\u00e9ritable industrialisation. Les retardateurs de flamme inorganiques, tels que l&#039;hydroxyde de magn\u00e9sium (MH), jouent non seulement un r\u00f4le de renforcement, mais pr\u00e9sentent \u00e9galement de bonnes propri\u00e9t\u00e9s de suppression de fum\u00e9e. La vapeur d&#039;eau et l&#039;oxyde de magn\u00e9sium produits par sa d\u00e9composition jouent respectivement un r\u00f4le de retardateur de flamme et de suppression de fum\u00e9e dans la phase gazeuse et la phase condens\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"640\" height=\"427\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/Magnesium-Hydroxide-1.webp\" alt=\"\" class=\"wp-image-15024\" style=\"width:994px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/Magnesium-Hydroxide-1.webp 640w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/Magnesium-Hydroxide-1-300x200.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/Magnesium-Hydroxide-1-18x12.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/Magnesium-Hydroxide-1-600x400.webp 600w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\"><em>L&#039;hydroxyde de magn\u00e9sium<\/em><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Effets d&#039;un syst\u00e8me ignifuge synergique<\/h2>\n\n\n\n<p>Pour \u00e9tudier les effets d&#039;un syst\u00e8me ignifuge synergique compos\u00e9 de poudre d&#039;hydroxyde de magn\u00e9sium GY-3000, HX-3000, GY-6000 et de trioxyde d&#039;antimoine sur les propri\u00e9t\u00e9s m\u00e9caniques et ignifuges des mat\u00e9riaux en PVC rigide, les chercheurs ont con\u00e7u la formule pr\u00e9sent\u00e9e dans le tableau suivant.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"12\">                                                 Tableau de formulation du syst\u00e8me ignifuge synergique \u00e0 base de trioxyde d&#039;antimoine et d&#039;oxyde de zinc<\/td><\/tr><tr><td rowspan=\"2\">Composants de la formulation<\/td><td colspan=\"11\">Code de formulation<\/td><\/tr><tr><td>0<\/td><td>1<\/td><td>2<\/td><td>3<\/td><td>4<\/td><td>5<\/td><td>6<\/td><td>7<\/td><td>8<\/td><td>9<\/td><td>10<\/td><\/tr><tr><td>PVC<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><td>100<\/td><\/tr><tr><td>Poudre de zinc (GY-616)<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><td>50<\/td><\/tr><tr><td>Oxyde de zinc GY-3000<\/td><td>\u2013<\/td><td>\u2013<\/td><td>4<\/td><td>8<\/td><td>12<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><td>Oxyde de zinc HX-3000<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>4<\/td><td>8<\/td><td>12<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><\/tr><tr><td>Oxyde de zinc GY-6000<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>\u2013<\/td><td>4<\/td><td>8<\/td><td>12<\/td><\/tr><tr><td>Trioxyde d&#039;antimoine<\/td><td>\u2013<\/td><td>5<\/td><td>4<\/td><td>3<\/td><td>2<\/td><td>4<\/td><td>3<\/td><td>2<\/td><td>4<\/td><td>3<\/td><td>2<\/td><\/tr><tr><td>Zinc-Calcium<br>Stabilisateur composite<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><td>5.5<\/td><\/tr><tr><td>Acide st\u00e9arique<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><td>0.6<\/td><\/tr><tr><td>Cire PE<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><td>0.8<\/td><\/tr><tr><td>CPE<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><td>6<\/td><\/tr><tr><td>DOP<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><td>4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\">Param\u00e8tres physiques de base de l&#039;oxyde de zinc GY-3000, HX-3000, GY-6000<\/td><\/tr><tr><td>Marque<\/td><td>D50 (\u00b5m)<\/td><td>D97 (\u00b5m)<\/td><td>Surface sp\u00e9cifique (m\u00b2\/g)<\/td><td>Blancheur (\u00b0)<\/td><td>Valeur d&#039;absorption d&#039;huile (mL\/100 g)<\/td><\/tr><tr><td>GY-3000<\/td><td>3.538<\/td><td>11.16<\/td><td>12.566<\/td><td>92<\/td><td>34<\/td><\/tr><tr><td>HX-3000<\/td><td>3.564<\/td><td>11.25<\/td><td>11.864<\/td><td>92<\/td><td>28<\/td><\/tr><tr><td>GY-6000<\/td><td>1.37<\/td><td>3.596<\/td><td>20.877<\/td><td>95<\/td><td>36<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Les chercheurs m\u00e9langent les mat\u00e9riaux selon les proportions du tableau de formules et les placent dans le cylindre de l&#039;extrudeuse. L&#039;extrudeuse transforme ensuite le m\u00e9lange en feuilles minces de 5 mm \u00e0 180 \u2103-195 \u2103. Ensuite, les chercheurs les coupent en tailles correspondantes pour les \u00e9chantillons d&#039;indice d&#039;oxyg\u00e8ne (80 mm \u00d7 10 mm \u00d7 5 mm), de densit\u00e9 de fum\u00e9e (25 mm \u00d7 25 mm \u00d7 3 mm), de r\u00e9sistance \u00e0 la traction (150 mm \u00d7 10 mm \u00d7 5 mm) et d&#039;impact (80 mm \u00d7 10 mm \u00d7 5 mm).<\/p>\n\n\n\n<p>Les chercheurs mesurent la taille et la distribution des particules de poudre \u00e0 l&#039;aide d&#039;un granulom\u00e8tre laser. Ils testent la surface sp\u00e9cifique \u00e0 l&#039;aide d&#039;un appareil de mesure de surface BET.<\/p>\n\n\n\n<p><strong>Blancheur<\/strong>:Test\u00e9 conform\u00e9ment \u00e0 la norme GB\/T 5950-2008.<br><strong>Absorption d&#039;huile<\/strong>:Test\u00e9 conform\u00e9ment \u00e0 la norme DB\/T 5211.15-2014.<\/p>\n\n\n\n<p>Les r\u00e9sultats des tests exp\u00e9rimentaux sont les suivants :<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Formule<\/td><td>0<\/td><td>1<\/td><td>2<\/td><td>3<\/td><td>4<\/td><td>5<\/td><td>6<\/td><td>7<\/td><td>8<\/td><td>9<\/td><td>10<\/td><\/tr><tr><td>R\u00e9sistance \u00e0 la traction (Mpa)<\/td><td>27.35&nbsp;<\/td><td>28.28&nbsp;<\/td><td>24.71&nbsp;<\/td><td>18.84&nbsp;<\/td><td>25.33&nbsp;<\/td><td>27.88&nbsp;<\/td><td>26.95&nbsp;<\/td><td>27.10&nbsp;<\/td><td>26.02&nbsp;<\/td><td>28.21&nbsp;<\/td><td>28.93&nbsp;<\/td><\/tr><tr><td>R\u00e9sistance aux chocs (Mpa)<\/td><td>3.27&nbsp;<\/td><td>4.55&nbsp;<\/td><td>4.00&nbsp;<\/td><td>3.20&nbsp;<\/td><td>2.81&nbsp;<\/td><td>3.99&nbsp;<\/td><td>3.90&nbsp;<\/td><td>4.13&nbsp;<\/td><td>3.18&nbsp;<\/td><td>4.18&nbsp;<\/td><td>5.43&nbsp;<\/td><\/tr><tr><td>Indice d&#039;oxyg\u00e8ne LOI (%)<\/td><td>36.80&nbsp;<\/td><td>43.80&nbsp;<\/td><td>46.80&nbsp;<\/td><td>47.60&nbsp;<\/td><td>46.60&nbsp;<\/td><td>46.20&nbsp;<\/td><td>46.40&nbsp;<\/td><td>45.60&nbsp;<\/td><td>45.80&nbsp;<\/td><td>46.80&nbsp;<\/td><td>47.00&nbsp;<\/td><\/tr><tr><td>Densit\u00e9 maximale de fum\u00e9e (%)<\/td><td>93.61&nbsp;<\/td><td>84.98&nbsp;<\/td><td>82.45&nbsp;<\/td><td>75.75&nbsp;<\/td><td>72.48&nbsp;<\/td><td>80.69&nbsp;<\/td><td>84.29&nbsp;<\/td><td>75.48&nbsp;<\/td><td>84.14&nbsp;<\/td><td>89.23&nbsp;<\/td><td>74.64&nbsp;<\/td><\/tr><tr><td>Niveau de densit\u00e9 de fum\u00e9e<\/td><td>68.25&nbsp;<\/td><td>64.75&nbsp;<\/td><td>63.52&nbsp;<\/td><td>61.97&nbsp;<\/td><td>55.31&nbsp;<\/td><td>62.78&nbsp;<\/td><td>65.48&nbsp;<\/td><td>61.92&nbsp;<\/td><td>67.24&nbsp;<\/td><td>64.41&nbsp;<\/td><td>61.74&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Indice d&#039;oxyg\u00e8ne<\/strong>:Test\u00e9 conform\u00e9ment \u00e0 la norme GB\/T 2406.2-2009.<br><strong>Densit\u00e9 de fum\u00e9e<\/strong>:Test\u00e9 conform\u00e9ment \u00e0 la norme GB\/T 8627-2007.<br><strong>Propri\u00e9t\u00e9s m\u00e9caniques<\/strong>:Les essais de propri\u00e9t\u00e9s de traction plastique et de r\u00e9sistance aux chocs des poutres en porte-\u00e0-faux ont \u00e9t\u00e9 r\u00e9alis\u00e9s conform\u00e9ment \u00e0 la norme GB\/T 1040.1-2006 et \u00e0 la norme GB\/T 1843-2008.<\/p>\n\n\n\n<p>Fran\u00e7ais Comme le montre le tableau, la r\u00e9sistance \u00e0 la traction sans aucun retardateur de flamme est de 27,3 MPa, et la r\u00e9sistance \u00e0 la traction du PVC avec Sb\u2082O\u2083 ajout\u00e9 seul est l\u00e9g\u00e8rement am\u00e9lior\u00e9e \u00e0 28,3 MPa. L&#039;ajout de MH au GY-3000 entra\u00eene une l\u00e9g\u00e8re diminution de la r\u00e9sistance \u00e0 la traction du produit. La r\u00e9sistance \u00e0 la traction du HX-3000 ne diminue pas, et la r\u00e9sistance \u00e0 la traction de la formule n\u00b0 5 (qui remplace 1 partie de Sb\u2082O\u2083 par 4 parties de MH) est de 27,8 MPa. Cela indique que la compatibilit\u00e9 du HX-3000 avec le PVC est am\u00e9lior\u00e9e apr\u00e8s le traitement de surface, am\u00e9liorant ainsi les propri\u00e9t\u00e9s m\u00e9caniques. <\/p>\n\n\n\n<p>Lorsque 4 parties de GY-6000 sont ajout\u00e9es au mat\u00e9riau composite MH, la r\u00e9sistance \u00e0 la traction diminue, mais \u00e0 mesure que la quantit\u00e9 de MH ajout\u00e9e augmente, la r\u00e9sistance \u00e0 la traction augmente progressivement, atteignant un maximum de 28,9 MPa. Ce chiffre est nettement sup\u00e9rieur \u00e0 celui des autres formules, ce qui sugg\u00e8re que la taille plus petite des particules de MH augmente sa surface de contact avec le PVC, ce qui conduit \u00e0 des performances de traction am\u00e9lior\u00e9es.<\/p>\n\n\n\n<p>Comme le montre le tableau, la r\u00e9sistance aux chocs sans retardateur de flamme est de 3,27 MPa, tandis que celle du PVC avec ajout de Sb\u2082O\u2083 seul atteint 4,55 MPa. L&#039;ajout de 4 parts de GY-3000 au composite MH augmente consid\u00e9rablement la r\u00e9sistance aux chocs, la portant \u00e0 4 MPa. Cependant, plus la teneur augmente, plus la r\u00e9sistance aux chocs du composite diminue. La r\u00e9sistance aux chocs du HX-3000 actif augmente significativement, atteignant 4,13 MPa, ce qui d\u00e9montre que le traitement de surface am\u00e9liore efficacement les propri\u00e9t\u00e9s m\u00e9caniques. La r\u00e9sistance aux chocs du composite GY-6000 MH affiche la plus forte augmentation. Avec l&#039;ajout de MH, la r\u00e9sistance aux chocs augmente rapidement, atteignant un maximum de 5,42 MPa, un niveau nettement sup\u00e9rieur aux autres formules. Cela sugg\u00e8re que la granulom\u00e9trie plus fine am\u00e9liore l&#039;effet de durcissement des microsph\u00e8res, am\u00e9liorant ainsi consid\u00e9rablement la r\u00e9sistance aux chocs.<\/p>\n\n\n\n<p>Les donn\u00e9es sur l&#039;indice d&#039;oxyg\u00e8ne du tableau montrent que l&#039;ajout d&#039;hydroxyde de magn\u00e9sium am\u00e9liore consid\u00e9rablement l&#039;indice d&#039;oxyg\u00e8ne du mat\u00e9riau composite PVC. L&#039;ajout de 8 parties de GY-3000 augmente l&#039;indice d&#039;oxyg\u00e8ne jusqu&#039;\u00e0 un maximum de 47,6%. L&#039;indice d&#039;oxyg\u00e8ne du HX-3000 \u00e9tait l\u00e9g\u00e8rement inf\u00e9rieur. Cela peut \u00eatre d\u00fb \u00e0 l&#039;effet du tensioactif sur la surface ext\u00e9rieure, mais il est toujours sup\u00e9rieur \u00e0 celui du PVC sans aucun retardateur de flamme. En ajoutant plus de GY-6000, l&#039;indice d&#039;oxyg\u00e8ne augmente, atteignant un maximum de 47%.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328.webp\" alt=\"\" class=\"wp-image-15021\" style=\"width:724px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328.webp 1000w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328-300x300.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328-100x100.webp 100w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328-768x768.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328-12x12.webp 12w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/03\/jet-mill-0328-600x600.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>Fran\u00e7ais Les donn\u00e9es de suppression de fum\u00e9e montrent que l&#039;ajout de retardateurs de flamme r\u00e9duit consid\u00e9rablement le niveau de densit\u00e9 de fum\u00e9e du mat\u00e9riau composite PVC. L&#039;utilisation de Sb\u2082O\u2083 seul abaisse la densit\u00e9 de fum\u00e9e maximale \u00e0 85%, tandis que le GY-3000 offre le meilleur effet de suppression de fum\u00e9e. \u00c0 mesure que la quantit\u00e9 de GY-3000 augmente, son effet de suppression de fum\u00e9e continue de s&#039;am\u00e9liorer, r\u00e9duisant la densit\u00e9 de fum\u00e9e minimale \u00e0 72,5%. Les effets de suppression de fum\u00e9e du HX-3000 et du GY-6000 sont l\u00e9g\u00e8rement inf\u00e9rieurs \u00e0 ceux du GY-3000, les valeurs de densit\u00e9 de fum\u00e9e maximale minimale \u00e9tant respectivement de 75,48% et 74,64%.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>En \u00e9tudiant les propri\u00e9t\u00e9s ignifuges, de suppression de fum\u00e9e et m\u00e9caniques des mat\u00e9riaux composites \u00e0 base d&#039;hydroxyde de magn\u00e9sium avec diff\u00e9rents types et composants, les conclusions sont les suivantes :<\/p>\n\n\n\n<p>L&#039;indice d&#039;oxyg\u00e8ne des mat\u00e9riaux composites PVC avec l&#039;ajout d&#039;hydroxyde de magn\u00e9sium est consid\u00e9rablement am\u00e9lior\u00e9. Lorsque 8 parties de GY-3000 sont ajout\u00e9es, l&#039;indice d&#039;oxyg\u00e8ne atteint un maximum de 47,6%. Plus on ajoute de GY-6000, plus l&#039;indice d&#039;oxyg\u00e8ne est \u00e9lev\u00e9, l&#039;indice d&#039;oxyg\u00e8ne maximal atteignant 47%.<\/p>\n\n\n\n<p>Le GY-3000 pr\u00e9sente le meilleur effet de suppression de fum\u00e9e. \u00c0 mesure que la quantit\u00e9 de GY-3000 ajout\u00e9e augmente, l&#039;effet de suppression de fum\u00e9e continue de s&#039;am\u00e9liorer, la densit\u00e9 de fum\u00e9e minimale tombant \u00e0 72,5%. Les effets de suppression de fum\u00e9e du HX-3000 et du GY-6000 sont l\u00e9g\u00e8rement inf\u00e9rieurs \u00e0 ceux du GY-3000, avec des densit\u00e9s de fum\u00e9e minimales et maximales de 75,5% et 74,6%, respectivement.<\/p>\n\n\n\n<p>La r\u00e9sistance \u00e0 la traction et la r\u00e9sistance aux chocs du mat\u00e9riau composite avec 12 parties de GY-6000 MH ajout\u00e9es sont les plus \u00e9lev\u00e9es, atteignant respectivement 28,9 MPa et 5,4 MPa.<\/p>\n\n\n\n<p>Contact us today for a free consultation and customized solutions!&nbsp;Our expert team is dedicated to providing high-quality products and services to maximize the value of your powder processing.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.epicmicron.com\/fr\">Poudre \u00e9pique<\/a>\u2014Votre expert de confiance en traitement de poudre\u00a0!<\/p>\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=\"Broyeur \u00e0 jet d&#039;air sur site d&#039;un client de Shanghai, SS304, MQW06\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/khXSttTeGBo?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><\/p>","protected":false},"excerpt":{"rendered":"<p>Le polychlorure de vinyle (PVC) est un plastique thermoplastique \u00e0 usage g\u00e9n\u00e9ral. Les fabricants l&#039;utilisent largement dans les mat\u00e9riaux de construction en raison de ses excellentes propri\u00e9t\u00e9s m\u00e9caniques, de sa bonne r\u00e9sistance \u00e0 la corrosion, de ses propri\u00e9t\u00e9s anti-vieillissement et de son caract\u00e8re ignifuge. [\u2026]<\/p>","protected":false},"author":2,"featured_media":15020,"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-15019","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - 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