{"id":3601,"date":"2025-11-03T16:43:43","date_gmt":"2025-11-03T08:43:43","guid":{"rendered":"https:\/\/www.nonmetallic-ore.com\/?p=3601"},"modified":"2025-11-03T16:43:46","modified_gmt":"2025-11-03T08:43:46","slug":"calcium-carbonate-applications-in-powder-coatings","status":"publish","type":"post","link":"https:\/\/www.nonmetallic-ore.com\/fr\/calcium-carbonate-applications-in-powder-coatings\/","title":{"rendered":"Applications du carbonate de calcium dans les rev\u00eatements en poudre"},"content":{"rendered":"<p>Le carbonate de calcium est un compos\u00e9 inorganique de formule chimique CaCO\u2083. Il est reconnu pour l&#039;abondance de ses mati\u00e8res premi\u00e8res, la simplicit\u00e9 de son proc\u00e9d\u00e9 de production et sa stabilit\u00e9. Ces atouts expliquent son utilisation r\u00e9pandue dans divers domaines tels que le caoutchouc, les plastiques, les rev\u00eatements et les encres. Dans le secteur des rev\u00eatements, le carbonate de calcium sert de charge et d&#039;agent blanchissant, conf\u00e9rant une structure squelettique. Il est plus abordable que le latex et les solvants. Ses particules fines assurent une dispersion homog\u00e8ne dans les rev\u00eatements, augmentant ainsi le volume, r\u00e9duisant les co\u00fbts et am\u00e9liorant les performances et la texture. Pour obtenir la finesse requise pour ces applications, le carbonate de calcium est pulv\u00e9ris\u00e9 \u00e0 l&#039;aide d&#039;\u00e9quipements tels que des broyeurs \u00e0 boulets, \u00e0 cylindres et \u00e0 broches. Ces m\u00e9thodes de broyage permettent de produire des poudres ultrafines, essentielles \u00e0 des rev\u00eatements de haute qualit\u00e9. Par ailleurs, des machines de rev\u00eatement sont utilis\u00e9es pour la modification de surface. Des classificateurs \u00e0 air ultrafins garantissent une distribution granulom\u00e9trique pr\u00e9cise, optimisant ainsi la compatibilit\u00e9 et l&#039;efficacit\u00e9 du mat\u00e9riau dans les rev\u00eatements.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System-1024x536.webp\" alt=\"\" class=\"wp-image-3606\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System-1024x536.webp 1024w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System-300x157.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System-768x402.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System-18x9.webp 18w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Ball-Mill-System.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-bab8605dbcdd96cfb79d142961a079e0\">Applications du carbonate de calcium dans les rev\u00eatements en poudre<\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-b7b531cc2e87d12ff10a770fb013ec1e\">1. Carbonate de calcium pour peinture au latex<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"778\" height=\"519\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/latex-paint.webp\" alt=\"\" class=\"wp-image-3604\" style=\"width:798px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/latex-paint.webp 778w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/latex-paint-300x200.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/latex-paint-768x512.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/latex-paint-18x12.webp 18w\" sizes=\"(max-width: 778px) 100vw, 778px\" \/><\/figure>\n\n\n\n<p>Dans les peintures latex, le carbonate de calcium sert de pigment de charge, g\u00e9n\u00e9ralement utilis\u00e9 \u00e0 des concentrations de 10 \u00e0 50 l\/min. Il conf\u00e8re un pouvoir couvrant, permettant d&#039;obtenir une texture fine et uniforme d&#039;une blancheur intense. Il offre \u00e9galement un pouvoir couvrant \u00e0 sec, particuli\u00e8rement \u00e9lev\u00e9 avec les produits ultrafins. Lorsque la taille des particules se rapproche de celle du dioxyde de titane, il am\u00e9liore le pouvoir couvrant, la r\u00e9sistance du film, la r\u00e9sistance \u00e0 l&#039;eau, la vitesse de s\u00e9chage et la r\u00e9sistance au frottement.<\/p>\n\n\n\n<p>Par exemple, le carbonate de calcium ultrafin r\u00e9duit consid\u00e9rablement les temps de dispersion et de pon\u00e7age lors de la production de peintures latex, am\u00e9liore le pouvoir couvrant, ajuste la viscosit\u00e9 du latex, diminue la quantit\u00e9 de dioxyde de titane utilis\u00e9e et facilite le pon\u00e7age au mastic. Dans la formulation des peintures, les peintures latex haute performance utilisent du carbonate de calcium ultrafin, tandis que les peintures de qualit\u00e9 inf\u00e9rieure privil\u00e9gient des particules plus grossi\u00e8res \u00e0 faible absorption d&#039;huile. Actuellement, le carbonate de calcium lourd (d97 &lt; 10 \u00b5m, d50 autour de 1,5 \u00b5m, blancheur &gt; 95% et teneur en CaCO\u2083 \u2265 98%) donne d&#039;excellents r\u00e9sultats dans les peintures latex pour murs int\u00e9rieurs.<\/p>\n\n\n\n<p>La production de particules de tailles aussi pr\u00e9cises implique souvent la pulv\u00e9risation du carbonate de calcium \u00e0 l&#039;aide de broyeurs \u00e0 boulets ou de broyeurs \u00e0 rouleaux, suivie d&#039;un classement \u00e0 l&#039;aide de classificateurs \u00e0 air ultrafins pour assurer la constance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-ef4613957415e91e7a9ce6330eb69e12\">2. Carbonate de calcium pour peinture automobile<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"612\" height=\"344\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Car-Paint-Protection.webp\" alt=\"\" class=\"wp-image-3603\" style=\"width:802px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Car-Paint-Protection.webp 612w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Car-Paint-Protection-300x169.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Car-Paint-Protection-18x10.webp 18w\" sizes=\"(max-width: 612px) 100vw, 612px\" \/><\/figure>\n\n\n\n<p>Le soubassement et les passages de roues des v\u00e9hicules sont fr\u00e9quemment expos\u00e9s aux projections de sable, de gravier et d&#039;eaux us\u00e9es, ce qui peut endommager les rev\u00eatements et entra\u00eener de la corrosion. Pour y rem\u00e9dier, on applique des rev\u00eatements de soubassement r\u00e9sistants aux impacts de gravillons et \u00e0 la corrosion.<\/p>\n\n\n\n<p>Le plastisol PVC est un type de peinture pour ch\u00e2ssis automobile, principalement compos\u00e9 de r\u00e9sine PVC en p\u00e2te, de plastifiants, de charges (carbonate de calcium), de stabilisants, d&#039;agents collants, de solvants et d&#039;autres additifs. Le carbonate de calcium repr\u00e9sente pr\u00e8s de 30 % du total (selon la formulation), et le carbonate de calcium nano am\u00e9liore les propri\u00e9t\u00e9s rh\u00e9ologiques et la r\u00e9sistance aux chocs davantage que les types ordinaires.<\/p>\n\n\n\n<p>Les peintures pour ch\u00e2ssis automobiles n\u00e9cessitent une faible viscosit\u00e9 pour une pulv\u00e9risation ais\u00e9e et une bonne fluidit\u00e9 lors de l&#039;application, mais une viscosit\u00e9 \u00e9lev\u00e9e apr\u00e8s application pour \u00e9viter les coulures. Ce comportement thixotrope est obtenu gr\u00e2ce au carbonate de calcium nanom\u00e9trique, qui offre une activation, une limite d&#039;\u00e9lasticit\u00e9 et une thixotropie \u00e9lev\u00e9es.<\/p>\n\n\n\n<p>Pour fabriquer du carbonate de calcium \u00e0 l&#039;\u00e9chelle nanom\u00e9trique, des \u00e9quipements de pulv\u00e9risation avanc\u00e9s tels que des broyeurs \u00e0 broches et des machines de rev\u00eatement pour le traitement de surface sont essentiels, garantissant des performances optimales dans les rev\u00eatements automobiles.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-25cd845356c2fcbc14eb1c55cc3d0624\">3. Carbonate de calcium pour encres<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-1024x683.webp\" alt=\"\" class=\"wp-image-3602\" style=\"width:805px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-1024x683.webp 1024w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-300x200.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-768x512.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-1536x1024.webp 1536w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-2048x1365.webp 2048w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/inkpaint-18x12.webp 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Dans les encres d&#039;imprimerie, le carbonate de calcium sert principalement \u00e0 r\u00e9duire les co\u00fbts et \u00e0 augmenter le volume en tant que charge. On privil\u00e9gie le carbonate de calcium ultrafin haute performance, dont les particules ont une taille comprise entre 0,02 et 1,0 \u00b5m et qui pr\u00e9sente une surface sp\u00e9cifique \u00e9lev\u00e9e, une bonne absorption d&#039;huile, une transparence, une brillance et une stabilit\u00e9 remarquables.<\/p>\n\n\n\n<p>En pratique, le carbonate de calcium nano l\u00e9ger ou le carbonate de calcium nano l\u00e9ger activ\u00e9 sont id\u00e9aux, bien que le prix plus \u00e9lev\u00e9 de ce dernier favorise l&#039;utilisation du premier. Le carbonate de calcium activ\u00e9 permet d&#039;obtenir des encres pr\u00e9sentant une bonne consistance, une viscosit\u00e9 optimale, d&#039;excellentes performances d&#039;impression, un s\u00e9chage rapide et sans effets secondaires. Ses fines particules assurent une dispersion, une transparence, une brillance, un pouvoir couvrant, une absorption et un s\u00e9chage optimaux, permettant ainsi d&#039;obtenir des impressions fines aux points nets. Avec l&#039;utilisation d\u00e9sormais courante de liants r\u00e9sineux dans les encres, la stabilit\u00e9 du carbonate de calcium activ\u00e9 a largement supplant\u00e9 celle d&#039;autres charges.<\/p>\n\n\n\n<p>Les charges pour encres haut de gamme utilis\u00e9es en Chine sont compos\u00e9es de carbonate de calcium ultrafin activ\u00e9, sous forme de cristaux sph\u00e9riques ou cubiques. La pulv\u00e9risation par broyeurs \u00e0 billes ou \u00e0 rouleaux, combin\u00e9e \u00e0 des classificateurs \u00e0 air ultrafins, est essentielle pour atteindre ces sp\u00e9cifications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-983be249a68aa649d1de68fa61104457\">4. Carbonate de calcium pour rev\u00eatements en poudre<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-1024x768.webp\" alt=\"Pigments indiens\" class=\"wp-image-3605\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-1024x768.webp 1024w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-300x225.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-768x576.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-1536x1152.webp 1536w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-2048x1536.webp 2048w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Indian-Pigments-16x12.webp 16w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Les charges utilis\u00e9es dans les rev\u00eatements en poudre contiennent souvent des m\u00e9taux lourds, ce qui les rend non conformes aux normes internationales, notamment pour les exportations vers l&#039;Europe et les \u00c9tats-Unis o\u00f9 les limites en m\u00e9taux lourds sont strictes. Le carbonate de calcium, peu co\u00fbteux et exempt de m\u00e9taux lourds, peut remplacer le sulfate de baryum et est id\u00e9al pour le rev\u00eatement de jouets, de poussettes, d&#039;\u00e9quipements sportifs, d&#039;ustensiles de cuisine et d&#039;appareils \u00e9lectrom\u00e9nagers.<\/p>\n\n\n\n<p>Les applications comprennent\u00a0:<\/p>\n\n\n\n<p>\u2022 Comme charge pour les rev\u00eatements \u00e0 haute brillance.<\/p>\n\n\n\n<p>\u2022 Dans les rev\u00eatements semi-brillants, ajout\u00e9s directement sans agents matifiants, ce qui permet de r\u00e9duire les co\u00fbts.<\/p>\n\n\n\n<p>\u2022 En tant que pigment inorganique blanc, utilis\u00e9 avec du dioxyde de titane pour r\u00e9duire les co\u00fbts.<\/p>\n\n\n\n<p>\u2022 Convient aux produits \u00e9cologiques \u00e0 faible teneur en m\u00e9taux lourds, comme les jouets pour enfants.<\/p>\n\n\n\n<p>\u2022 Am\u00e9liore le taux de poudrage et la zone de pulv\u00e9risation, notamment pour les poudres hybrides.<\/p>\n\n\n\n<p>Les technologies de broyage \u00e0 broches et de machines de rev\u00eatement am\u00e9liorent les propri\u00e9t\u00e9s de surface, rendant le carbonate de calcium plus efficace dans les rev\u00eatements en poudre.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-ce028dc9105ffc7cc5a98495699975f0\">Tendances de d\u00e9veloppement du carbonate de calcium dans l&#039;industrie des rev\u00eatements<\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-0a6f307c362f5d7defc7a20f05a5a389\">1. Nanonisation<\/h3>\n\n\n\n<p>Dans l&#039;industrie des rev\u00eatements, le carbonate de calcium nanom\u00e9trique cr\u00e9e un encombrement st\u00e9rique qui emp\u00eache la s\u00e9dimentation tout en apportant blancheur et brillance sans alt\u00e9rer le pouvoir couvrant, am\u00e9liorant ainsi la stabilit\u00e9 au stockage. Son effet de \u00ab\u00a0d\u00e9calage vers le bleu\u00a0\u00bb dans le latex prot\u00e8ge contre les UV et le vieillissement thermique, renfor\u00e7ant l&#039;isolation.<\/p>\n\n\n\n<p>Utilis\u00e9 comme charge, il am\u00e9liore la flexibilit\u00e9, la duret\u00e9, le nivellement, le d\u00e9p\u00f4t de film et la perm\u00e9abilit\u00e9. Dans les rev\u00eatements ext\u00e9rieurs, il conf\u00e8re une hydrophobie, augmentant ainsi la r\u00e9sistance aux fissures et aux taches. Dans les peintures latex \u00e0 base d&#039;eau, il r\u00e9duit la concentration des contraintes dues aux particules rigides, am\u00e9liorant la t\u00e9nacit\u00e9 gr\u00e2ce \u00e0 la formation de microfissures et \u00e0 la d\u00e9formation \u00e9lastique.<\/p>\n\n\n\n<p>L&#039;ajout de carbonate de calcium nanom\u00e9trique sp\u00e9cialement trait\u00e9 (2%-5%) aux peintures latex traditionnelles am\u00e9liore consid\u00e9rablement leurs propri\u00e9t\u00e9s rh\u00e9ologiques, leur facilit\u00e9 d&#039;ouverture, leur r\u00e9sistance \u00e0 l&#039;eau et au frottement, ainsi que leur duret\u00e9. Des entreprises comme la japonaise Shiraishi et l&#039;italienne Sim produisent ce carbonate de calcium nanom\u00e9trique destin\u00e9 \u00e0 modifier les peintures latex \u00e0 base d&#039;eau.<\/p>\n\n\n\n<p>Gr\u00e2ce \u00e0 ses propri\u00e9t\u00e9s nanom\u00e9triques, sa grande surface sp\u00e9cifique, ses atomes activ\u00e9s et ses interactions polym\u00e8res, ce mat\u00e9riau pr\u00e9sente des propri\u00e9t\u00e9s particuli\u00e8res. Sa thixotropie le rend id\u00e9al pour les rev\u00eatements anti-gravillons et les couches de finition des ch\u00e2ssis automobiles. L&#039;obtention de particules nanom\u00e9triques requiert une pulv\u00e9risation pr\u00e9cise \u00e0 l&#039;aide de broyeurs \u00e0 billes, \u00e0 rouleaux ou \u00e0 broches, et une s\u00e9paration par tamisage pneumatique ultrafin.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-f5ebcef02171a0ec581399948a401402\">2. Fonctionnalisation<\/h3>\n\n\n\n<p>Avec les progr\u00e8s technologiques et l&#039;am\u00e9lioration du niveau de vie, les consommateurs exigent une fonctionnalit\u00e9 accrue, ce qui explique l&#039;essor des rev\u00eatements multifonctionnels haute performance. L&#039;ajout de nanoparticules de carbonate de calcium et de ZnO conf\u00e8re des propri\u00e9t\u00e9s antibact\u00e9riennes et antifongiques, tout en am\u00e9liorant la r\u00e9sistance aux intemp\u00e9ries et la qualit\u00e9 globale.<\/p>\n\n\n\n<p>R\u00e9cemment, les fabricants de peinture et les instituts de recherche nationaux et internationaux explorent les min\u00e9raux non m\u00e9talliques et les produits transform\u00e9s en profondeur pour am\u00e9liorer ou ajouter de nouvelles fonctions aux rev\u00eatements, ce qui en fait un sujet d&#039;actualit\u00e9 dans le domaine des rev\u00eatements architecturaux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-42469479a5899b63922338cfc102bd1c\">3. Modification de surface<\/h3>\n\n\n\n<p>L&#039;application de nano-carbonate de calcium pour am\u00e9liorer les rev\u00eatements est un sujet d&#039;actualit\u00e9, mais son utilisation directe pr\u00e9sente des inconv\u00e9nients\u00a0: une \u00e9nergie de surface \u00e9lev\u00e9e entra\u00eene une agglom\u00e9ration\u00a0; les surfaces hydrophiles et ol\u00e9ophobes entravent la dispersion dans les compos\u00e9s organiques, affaiblissant les liaisons et provoquant des d\u00e9fauts.<\/p>\n\n\n\n<p>La compatibilit\u00e9 avec les mat\u00e9riaux de base diff\u00e8re de celle des polym\u00e8res pr\u00e9sents dans les plastiques ou le caoutchouc en raison des groupes fonctionnels, du poids mol\u00e9culaire, de la polarit\u00e9 et des interactions. Par cons\u00e9quent, la modification de surface est essentielle \u00e0 une application r\u00e9ussie, souvent r\u00e9alis\u00e9e \u00e0 l&#039;aide de machines de rev\u00eatement pour am\u00e9liorer la dispersion et les performances.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"576\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/pin-mill630-2-768x576-1.webp\" alt=\"\" class=\"wp-image-3607\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/pin-mill630-2-768x576-1.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/pin-mill630-2-768x576-1-300x225.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/pin-mill630-2-768x576-1-16x12.webp 16w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\">Moulin \u00e0 broches par Epic Powder<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-ast-global-color-1-color has-text-color has-link-color wp-elements-04353c2b9fd8e14ed98ab21880ab7aa4\">4. Sp\u00e9cialisation<\/h3>\n\n\n\n<p>Avec la croissance de l&#039;industrie du carbonate de calcium, des produits sp\u00e9cialis\u00e9s pour les rev\u00eatements ont vu le jour\u00a0: formes cristallines sp\u00e9cifiques, granulom\u00e9trie inf\u00e9rieure \u00e0 0,1\u00a0\u00b5m, absence de s\u00e9dimentation, haute brillance et dispersion facile. Les fabricants haut de gamme recherchent un carbonate de calcium de qualit\u00e9 sup\u00e9rieure.<\/p>\n\n\n\n<p>De mani\u00e8re g\u00e9n\u00e9rale, face \u00e0 la prise de conscience croissante en mati\u00e8re de protection de l&#039;environnement, la demande de charges \u00e9cologiques dans l&#039;industrie des rev\u00eatements est en hausse, et le carbonate de calcium, en tant que charge naturelle et non toxique, suscite \u00e9galement un int\u00e9r\u00eat grandissant. Il am\u00e9liore les performances et la texture pour les applications haut de gamme et r\u00e9duit les co\u00fbts de production \u00e0 grande \u00e9chelle, promettant ainsi une croissance durable du secteur des rev\u00eatements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#cf2e2e\" class=\"has-inline-color\">Poudre \u00e9pique<\/mark><\/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=\"Broyeur \u00e0 trois rouleaux pour la modification de la surface de la poudre de carbonate de calcium\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/cNzgynoeNI8?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>Pour des \u00e9quipements de pointe dans le traitement du carbonate de calcium, notamment des syst\u00e8mes de pulv\u00e9risation, des broyeurs \u00e0 boulets, des broyeurs \u00e0 cylindres, des broyeurs \u00e0 broches, des machines d&#039;enrobage et des classificateurs \u00e0 air ultrafins, consid\u00e9rez <a href=\"https:\/\/www.nonmetallic-ore.com\/fr\/machines\/\">Poudre \u00e9pique<\/a> Machinery, leader en solutions innovantes pour le traitement des poudres. Contactez-nous d\u00e8s aujourd&#039;hui pour toute question sur nos produits.<\/p>\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\/3601#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\/3601#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.4\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" 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kc_captcha\" data-name=\"kc_captcha\"><span class=\"wpcf7-form-control wpcf7-radio\"><span class=\"captcha-image\" ><span class=\"cf7ic_instructions\">Veuillez prouver que vous \u00eates humain en s\u00e9lectionnant<span> cl\u00e9<\/span>\u3002<\/span><label><input aria-label=\"1\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M488 313v143c0 13-11 24-24 24H348c-7 0-12-5-12-12V356c0-7-5-12-12-12h-72c-7 0-12 5-12 12v112c0 7-5 12-12 12H112c-13 0-24-11-24-24V313c0-4 2-7 4-10l188-154c5-4 11-4 16 0l188 154c2 3 4 6 4 10zm84-61l-84-69V44c0-6-5-12-12-12h-56c-7 0-12 6-12 12v73l-89-74a48 48 0 00-61 0L4 252c-5 4-5 12-1 17l25 31c5 5 12 5 17 1l235-193c5-4 11-4 16 0l235 193c5 5 13 4 17-1l25-31c4-6 4-13-1-17z\"\/><\/svg><\/label><label><input aria-label=\"2\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M259 18l-65 132-146 22c-26 3-37 36-18 54l106 103-25 146c-5 26 23 46 46 33l131-68 131 68c23 13 51-7 46-33l-25-146 106-103c19-18 8-51-18-54l-146-22-65-132a32 32 0 00-58 0z\"\/><\/svg><\/label><label><input aria-label=\"3\" type=\"radio\" name=\"kc_captcha\" value=\"kc_human\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path fill=\"currentColor\" d=\"M512 176a176 176 0 01-209 173l-24 27a24 24 0 01-18 8h-37v40c0 13-11 24-24 24h-40v40c0 13-11 24-24 24H24c-13 0-24-11-24-24v-78c0-6 3-13 7-17l162-162a176 176 0 11343-55zm-176-48a48 48 0 1096 0 48 48 0 00-96 0z\"\/><\/svg><\/label>\r\n    <\/span>\r\n    <span style=\"display:none\">\r\n        <input type=\"text\" name=\"kc_honeypot\">\r\n    <\/span><\/span><\/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: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\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>","protected":false},"excerpt":{"rendered":"<p>Le carbonate de calcium est un compos\u00e9 inorganique de formule chimique CaCO\u2083. Il est reconnu pour l&#039;abondance de ses mati\u00e8res premi\u00e8res, la simplicit\u00e9 de son proc\u00e9d\u00e9 de fabrication et sa stabilit\u00e9. Ces atouts expliquent son utilisation r\u00e9pandue dans divers domaines tels que le caoutchouc, les plastiques, les rev\u00eatements et les encres. Dans le secteur des rev\u00eatements, le carbonate de calcium sert de charge et d&#039;agent blanchissant, offrant [\u2026]<\/p>","protected":false},"author":1,"featured_media":3603,"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":"var(--ast-global-color-4)","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":[6],"tags":[],"class_list":["post-3601","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrafine-powder-grinding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - 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