{"id":3896,"date":"2026-05-29T15:05:09","date_gmt":"2026-05-29T07:05:09","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3896"},"modified":"2026-05-29T15:07:04","modified_gmt":"2026-05-29T07:07:04","slug":"how-to-prevent-agglomeration-in-ultra-fine-calcium-carbonate-coating-process","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/how-to-prevent-agglomeration-in-ultra-fine-calcium-carbonate-coating-process\/","title":{"rendered":"Comment pr\u00e9venir l&#039;agglom\u00e9ration lors du processus de rev\u00eatement ultrafin au carbonate de calcium\u00a0?"},"content":{"rendered":"<p>Le carbonate de calcium ultrafin (carbonate de calcium nanom\u00e9trique) est une charge industrielle essentielle. Il est largement utilis\u00e9 dans les composites polym\u00e8res modernes, les m\u00e9langes-ma\u00eetres plastiques haut de gamme, ainsi que dans les industries du caoutchouc et des rev\u00eatements. Il conf\u00e8re des propri\u00e9t\u00e9s de renforcement et de modification tout en r\u00e9duisant les co\u00fbts de production, ce qui en fait une mati\u00e8re premi\u00e8re indispensable dans ces domaines.<\/p>\n\n\n\n<p>Pour am\u00e9liorer sa dispersibilit\u00e9 et sa compatibilit\u00e9 au sein des matrices polym\u00e8res, les producteurs industriels doivent proc\u00e9der \u00e0 une modification de surface par rev\u00eatement \u00e0 l&#039;aide d&#039;agents tels que l&#039;acide st\u00e9arique, les titanates ou les agents de couplage silane. Or, en production, de nombreux fabricants sont confront\u00e9s \u00e0 un paradoxe technique majeur\u00a0: le proc\u00e9d\u00e9 de rev\u00eatement, cens\u00e9 \u00e9liminer l&#039;agglom\u00e9ration, intensifie souvent l&#039;agglom\u00e9ration secondaire en raison d&#039;une mise en \u0153uvre incorrecte lors de la modification.<\/p>\n\n\n\n<p>Comment les fabricants peuvent-ils supprimer totalement l&#039;agglom\u00e9ration des poudres lors du processus de modification du rev\u00eatement et obtenir un rev\u00eatement uniforme au niveau de la particule unique\u00a0? Cet article propose une analyse approfondie des solutions anti-agglom\u00e9ration de qualit\u00e9 industrielle selon quatre axes\u00a0: le cisaillement physique, le contr\u00f4le thermodynamique, la dispersion de l&#039;agent de rev\u00eatement et la configuration globale du syst\u00e8me d&#039;\u00e9quipement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I. Causes de l&#039;agglom\u00e9ration : Pourquoi l&#039;agglom\u00e9ration se produit-elle ? <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/\">Carbonate de calcium ultra-fin<\/a> S&#039;agglom\u00e8rent-ils facilement lors de l&#039;enrobage\u00a0?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/05\/calcium-carbonate-powder-coating-machine.webp\" alt=\"machine de rev\u00eatement en poudre de carbonate de calcium\" class=\"wp-image-3897\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/05\/calcium-carbonate-powder-coating-machine.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/05\/calcium-carbonate-powder-coating-machine-300x200.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/05\/calcium-carbonate-powder-coating-machine-768x513.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/05\/calcium-carbonate-powder-coating-machine-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Pour r\u00e9soudre le probl\u00e8me d&#039;agglom\u00e9ration, il est essentiel de comprendre les m\u00e9canismes physiques qui la sous-tendent. L&#039;agglom\u00e9ration du carbonate de calcium ultrafin lors du rev\u00eatement est principalement due aux effets combin\u00e9s des trois facteurs suivants\u00a0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Forces de Van der Waals et attraction \u00e9lectrostatique<\/h3>\n\n\n\n<p>Lorsque les particules de carbonate de calcium atteignent une taille microm\u00e9trique ou submicrom\u00e9trique, la distance entre elles devient extr\u00eamement faible. \u00c0 cette \u00e9chelle, les forces intermol\u00e9culaires de van der Waals deviennent bien plus importantes que la force gravitationnelle propre aux particules. Par ailleurs, les charges \u00e9lectrostatiques g\u00e9n\u00e9r\u00e9es lors du broyage m\u00e9canique ou du transport pneumatique peuvent accentuer l&#039;attraction entre les particules.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Agglom\u00e9ration de l&#039;agent de rev\u00eatement (\u00ab effet de sur-rev\u00eatement \u00bb)<\/h3>\n\n\n\n<p>Si le dosage d&#039;agents d&#039;enrobage tels que l&#039;acide st\u00e9arique est trop \u00e9lev\u00e9, ou si la fusion est irr\u00e9guli\u00e8re, l&#039;agent d&#039;enrobage lui-m\u00eame peut devenir une \u00ab colle \u00bb solide, liant de force les particules de carbonate de calcium initialement dispers\u00e9es et formant des agglom\u00e9rats secondaires durs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Humidit\u00e9 et forces capillaires<\/h3>\n\n\n\n<p>Les poudres ultrafines sont tr\u00e8s hygroscopiques. Si la poudre brute ou l&#039;air du syst\u00e8me contient une humidit\u00e9 excessive, m\u00eame des traces d&#039;eau peuvent former des ponts liquides entre les particules. Lors des op\u00e9rations de chauffage et d&#039;enrobage ult\u00e9rieures, ces ponts s\u00e8chent et se solidifient, formant des agglom\u00e9rats durs extr\u00eamement difficiles \u00e0 disperser.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">II. Strat\u00e9gie principale 1\u00a0: Obtenir une atomisation uniforme \u00ab\u00a0au niveau atomique\u00a0\u00bb de l\u2019agent de rev\u00eatement<\/h2>\n\n\n\n<p>Les m\u00e9thodes traditionnelles d&#039;alimentation en agents de rev\u00eatement consistent souvent \u00e0 ajouter directement des solides ou des flux liquides grossiers, ce qui est d\u00e9sastreux pour la modification des poudres ultrafines. Afin d&#039;\u00e9viter que l&#039;agent de rev\u00eatement ne devienne un adh\u00e9sif favorisant l&#039;agglom\u00e9ration, une dilution tr\u00e8s efficace et une atomisation fine des additifs sont essentielles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Syst\u00e8me d&#039;atomisation \u00e0 double fluide de pr\u00e9cision<\/h3>\n\n\n\n<p>L&#039;agent d&#039;enrobage (tel que l&#039;acide st\u00e9arique) doit d&#039;abord \u00eatre chauff\u00e9 jusqu&#039;\u00e0 fusion compl\u00e8te, puis atomis\u00e9 en gouttelettes ultrafines \u00e0 l&#039;aide d&#039;air comprim\u00e9 (ou d&#039;azote) et d&#039;une buse \u00e0 double fluide. La taille des gouttelettes apr\u00e8s atomisation doit \u00eatre aussi proche que possible de celle des particules de carbonate de calcium, voire inf\u00e9rieure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Microdosage par lots et en continu<\/h3>\n\n\n\n<p>L&#039;agent de rev\u00eatement atomis\u00e9 doit entrer en contact avec la poudre dans des proportions extr\u00eamement uniformes afin que ses mol\u00e9cules forment rapidement une monocouche \u00e0 la surface du carbonate de calcium. Ceci \u00e9vite un surdosage localis\u00e9, susceptible d&#039;entra\u00eener un collage et une agglom\u00e9ration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">III. Strat\u00e9gie principale 2\u00a0: Fournir une force de cisaillement physique instantan\u00e9e, intense et sans zone morte<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"419\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/three-roller-mill-coating-machine.webp\" alt=\"machine \u00e0 enrober \u00e0 trois rouleaux\" class=\"wp-image-3773\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/three-roller-mill-coating-machine.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/three-roller-mill-coating-machine-300x157.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/three-roller-mill-coating-machine-768x402.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/three-roller-mill-coating-machine-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">machine \u00e0 enrober \u00e0 trois rouleaux<\/figcaption><\/figure>\n\n\n\n<p>La dispersion m\u00e9canique est essentielle pour d\u00e9sagr\u00e9ger les agglom\u00e9rats initiaux et permettre l&#039;application d&#039;un rev\u00eatement. Les \u00e9quipements de m\u00e9lange statiques ou \u00e0 faible vitesse ne peuvent \u00e0 eux seuls vaincre les forces de van der Waals entre les poudres microm\u00e9triques. Il est donc indispensable de mettre en \u0153uvre des m\u00e9canismes dynamiques efficaces d&#039;impact et de cisaillement.<\/p>\n\n\n\n<p>Dans les lignes de production en continu, l&#039;utilisation de <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/three-roller-coating-machine\/\">Machine de rev\u00eatement \u00e0 trois rouleaux en continu Epic Powder<\/a> Ce syst\u00e8me est recommand\u00e9. Son principe anti-agglom\u00e9ration repose sur les principes suivants\u00a0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c9tat de convoyage fluidis\u00e9<\/h3>\n\n\n\n<p>Sous l&#039;action combin\u00e9e de la force m\u00e9canique et du flux d&#039;air, le mat\u00e9riau entre dans un \u00e9tat de \u00ab lit fluidis\u00e9 \u00bb hautement dispers\u00e9 \u00e0 l&#039;int\u00e9rieur de la chambre de rev\u00eatement. Les particules sont totalement s\u00e9par\u00e9es les unes des autres, maximisant ainsi la distance interparticulaire.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cisaillement et impact instantan\u00e9s<\/h3>\n\n\n\n<p>Le rotor de rev\u00eatement rotatif \u00e0 grande vitesse p\u00e9riph\u00e9rique exerce une force de cisaillement extr\u00eamement importante sur la poudre. En une fraction de seconde, lorsque les agglom\u00e9rats initiaux sont d\u00e9sagr\u00e9g\u00e9s par la force m\u00e9canique, l&#039;agent de rev\u00eatement atomis\u00e9 p\u00e9n\u00e8tre et s&#039;adsorbe instantan\u00e9ment sur les surfaces des particules nouvellement expos\u00e9es, fixant ainsi la dispersion et emp\u00eachant toute agglom\u00e9ration secondaire.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">IV. Strat\u00e9gie principale 3\u00a0: Contr\u00f4le strict des param\u00e8tres thermodynamiques (courbe de contr\u00f4le de la temp\u00e9rature)<\/h2>\n\n\n\n<p>L&#039;environnement thermodynamique lors du rev\u00eatement d\u00e9termine directement l&#039;activit\u00e9 des mol\u00e9cules de l&#039;agent de rev\u00eatement et les propri\u00e9t\u00e9s fluides du mat\u00e9riau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Contr\u00f4le de la temp\u00e9rature dans la zone de rev\u00eatement principale<\/h3>\n\n\n\n<p>Prenons l&#039;exemple d&#039;un rev\u00eatement \u00e0 l&#039;acide st\u00e9arique : la temp\u00e9rature interne du syst\u00e8me doit \u00eatre maintenue de mani\u00e8re stable entre 100 \u00b0C et 120 \u00b0C.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Si la temp\u00e9rature est trop basse, l&#039;acide st\u00e9arique ne peut pas fondre compl\u00e8tement ni r\u00e9agir compl\u00e8tement, ce qui entra\u00eene un pi\u00e9geage physique et une agglom\u00e9ration.<\/li>\n\n\n\n<li>Si la temp\u00e9rature est trop \u00e9lev\u00e9e, l&#039;agent de rev\u00eatement peut se d\u00e9grader thermiquement, ou une agitation thermique excessive \u00e0 la surface de la poudre peut r\u00e9duire l&#039;efficacit\u00e9 du rev\u00eatement.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e9canisme de refroidissement rapide en aval<\/h3>\n\n\n\n<p>La poudre modifi\u00e9e ne doit jamais s&#039;accumuler tant qu&#039;elle est encore chaude apr\u00e8s le rev\u00eatement. \u00c0 haute temp\u00e9rature, les agents de rev\u00eatement libres n&#039;ayant pas r\u00e9agi restent collants.<\/p>\n\n\n\n<p>Par cons\u00e9quent, le syst\u00e8me doit \u00eatre \u00e9quip\u00e9 d&#039;un syst\u00e8me de refroidissement et de convoyage par flux d&#039;air capable de r\u00e9duire la temp\u00e9rature du produit fini \u00e0 moins de 60 \u00b0C en quelques secondes. Ceci permet \u00e0 la couche de rev\u00eatement de se solidifier et de se stabiliser rapidement, \u00e9liminant ainsi tout risque d&#039;agglom\u00e9ration par compression thermique d\u00fb \u00e0 l&#039;empilement de mat\u00e9riaux chauds.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"580\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine.webp\" alt=\"Machine de rev\u00eatement au carbonate de calcium\" class=\"wp-image-3835\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-300x218.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-768x557.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/03\/Calcium-Carbonate-Coating-Machine-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Machine de rev\u00eatement au carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">V. Strat\u00e9gie principale 4\u00a0: Coordination globale des processus et conception d\u00e9taill\u00e9e du syst\u00e8me<\/h2>\n\n\n\n<p>Pr\u00e9venir l&#039;agglom\u00e9ration est un projet d&#039;ing\u00e9nierie syst\u00e9matique. Au-del\u00e0 de la machine d&#039;enduction elle-m\u00eame, la conception des syst\u00e8mes auxiliaires en amont et en aval d\u00e9termine \u00e9galement le taux d&#039;activation final et les performances de dispersion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Syst\u00e8me d&#039;alimentation par perte de poids continu et stable<\/h3>\n\n\n\n<p>La poudre de carbonate de calcium ultrafine est extr\u00eamement l\u00e9g\u00e8re et sujette \u00e0 la formation de ponts. Les alimentateurs \u00e0 vis classiques g\u00e9n\u00e8rent souvent une alimentation irr\u00e9guli\u00e8re, avec parfois une quantit\u00e9 de mati\u00e8re excessive, parfois insuffisante.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Conception anti-agglom\u00e9rante<\/h5>\n\n\n\n<p>Le syst\u00e8me doit int\u00e9grer un doseur pond\u00e9ral \u00e0 perte de poids afin de garantir un d\u00e9bit volumique de poudre parfaitement constant dans la chambre d&#039;enrobage. Ceci permet un \u00e9quilibre optimal entre l&#039;agent d&#039;enrobage atomis\u00e9 et la poudre, tant en termes de rapport gaz\/solide que de rapport mat\u00e9riau\/agent.<\/p>\n\n\n\n<p>Cela emp\u00eache\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>rev\u00eatement irr\u00e9gulier d\u00fb \u00e0 un exc\u00e8s de mat\u00e9riau et \u00e0 une quantit\u00e9 insuffisante d&#039;agent de rev\u00eatement\u00a0;<\/li>\n\n\n\n<li>ou une agglom\u00e9ration adh\u00e9sive due \u00e0 un exc\u00e8s d&#039;agent de rev\u00eatement et \u00e0 une quantit\u00e9 insuffisante de poudre.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Syst\u00e8me de d\u00e9shumidification et de s\u00e9chage en profondeur<\/h3>\n\n\n\n<h5 class=\"wp-block-heading\">Conception anti-agglom\u00e9rante<\/h5>\n\n\n\n<p>Tout le flux d&#039;air entrant dans la machine de rev\u00eatement, qu&#039;il s&#039;agisse d&#039;air de transport ou d&#039;air d&#039;atomisation, doit passer par un s\u00e9choir frigorifique \u00e0 haute efficacit\u00e9 afin de contr\u00f4ler strictement le point de ros\u00e9e de l&#039;air.<\/p>\n\n\n\n<p>Parall\u00e8lement, le pr\u00e9curseur de carbonate de calcium ultrafin doit \u00eatre pr\u00e9chauff\u00e9 et s\u00e9ch\u00e9 avant d&#039;\u00eatre introduit dans la ligne de rev\u00eatement, afin de garantir que sa teneur en humidit\u00e9 reste inf\u00e9rieure \u00e0 0,31 TP3T. Ceci \u00e9limine fondamentalement l&#039;agglom\u00e9ration importante caus\u00e9e par les forces capillaires induites par l&#039;humidit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">VI. Conclusion <\/h2>\n\n\n\n<p>Dans le proc\u00e9d\u00e9 de rev\u00eatement de surface du carbonate de calcium ultrafin, les principes fondamentaux pour pr\u00e9venir l&#039;agglom\u00e9ration peuvent \u00eatre r\u00e9sum\u00e9s comme suit\u00a0:<\/p>\n\n\n\n<p>\u00ab Une atomisation fine est la condition pr\u00e9alable, un cisaillement puissant est le c\u0153ur du syst\u00e8me, un contr\u00f4le strict de la temp\u00e9rature est la garantie et une alimentation stable est le fondement. \u00bb<\/p>\n\n\n\n<p>Gr\u00e2ce aux optimisations compl\u00e8tes du processus d\u00e9crites ci-dessus, les fabricants peuvent non seulement \u00e9liminer compl\u00e8tement l&#039;agglom\u00e9ration de poudre pendant le rev\u00eatement, mais aussi maintenir le taux d&#039;activation (taux d&#039;activation \/ taux de rev\u00eatement) de mani\u00e8re constante au-dessus de 98%.<\/p>\n\n\n\n<p>Le carbonate de calcium modifi\u00e9 ultrafin ainsi obtenu pr\u00e9sente d&#039;excellentes propri\u00e9t\u00e9s hydrophobes et lipophiles. Dans des applications en aval telles que le cuir artificiel, les plastiques biod\u00e9gradables, le PVC de haute qualit\u00e9 et les composites de caoutchouc, il permet d&#039;obtenir une dispersion uniforme \u00e0 l&#039;\u00e9chelle nanom\u00e9trique, am\u00e9liorant ainsi significativement la r\u00e9sistance \u00e0 la traction, la t\u00e9nacit\u00e9 et la brillance de surface des produits finis. En d\u00e9finitive, cela permet aux fabricants de cr\u00e9er une plus grande valeur ajout\u00e9e technologique et de renforcer leur comp\u00e9titivit\u00e9 sur le march\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"721\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-3708\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp 721w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u00ab Merci de votre lecture. J\u2019esp\u00e8re que cet article vous sera utile. N\u2019h\u00e9sitez pas \u00e0 laisser un commentaire ci-dessous. Pour toute question, vous pouvez \u00e9galement contacter le service client en ligne de Zelda. \u00bb<\/p>\n<cite>                                                                                                                                                                             \u2014 Publi\u00e9 par <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Emily Chen<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\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\/3896#wpcf7-f16-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\/3896#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre nom*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Votre entreprise\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Votre message\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Le carbonate de calcium ultrafin (carbonate de calcium ultrafin\/nano) est une charge industrielle essentielle. Il est largement utilis\u00e9 dans les composites polym\u00e8res modernes, les m\u00e9langes-ma\u00eetres plastiques haut de gamme, ainsi que dans les industries du caoutchouc et des rev\u00eatements. Il conf\u00e8re des propri\u00e9t\u00e9s de renforcement et de modification tout en r\u00e9duisant les co\u00fbts de production, ce qui en fait une mati\u00e8re premi\u00e8re indispensable dans ces domaines. Afin d&#039;am\u00e9liorer sa dispersibilit\u00e9 et sa compatibilit\u00e9 au sein de ces m\u00e9langes, [\u2026]<\/p>","protected":false},"author":1,"featured_media":3835,"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":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3896","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrafine-air-classifier"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Prevent Agglomeration in Ultra-Fine Calcium Carbonate Coating Process? - Calcium Carbonate Production Line<\/title>\n<meta name=\"description\" content=\"Discover how to optimize the calcium carbonate coating process to completely prevent powder agglomeration and achieve a 98%+ uniform activation rate.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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