{"id":3098,"date":"2025-04-17T10:02:56","date_gmt":"2025-04-17T02:02:56","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3098"},"modified":"2025-04-17T10:02:59","modified_gmt":"2025-04-17T02:02:59","slug":"the-role-of-calcium-carbonate-caco%e2%82%83-in-plastic-modification","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/the-role-of-calcium-carbonate-caco%e2%82%83-in-plastic-modification\/","title":{"rendered":"Le r\u00f4le du carbonate de calcium (CaCO\u2083) dans la modification du plastique"},"content":{"rendered":"<p><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/\">Carbonate de calcium<\/a> (CaCO\u2083) est un compos\u00e9 inorganique courant. Dans la nature, le carbonate de calcium existe sous de nombreuses formes, comme la calcite, le calcaire, le marbre, etc. Il est le principal composant de nombreuses roches et min\u00e9raux. D&#039;un point de vue chimique, le carbonate de calcium se d\u00e9compose en oxyde de calcium (CaO) et en dioxyde de carbone (CO\u2082) \u00e0 haute temp\u00e9rature. Il peut r\u00e9agir avec les acides pour produire les sels correspondants, le dioxyde de carbone et l&#039;eau. Quel est donc le r\u00f4le du carbonate de calcium dans l&#039;industrie des plastiques\u00a0? Quelles sont ses limites\u00a0?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"400\" height=\"293\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/plastic.webp\" alt=\"plastique\" class=\"wp-image-3101\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/plastic.webp 400w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/plastic-300x220.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/plastic-16x12.webp 16w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Am\u00e9liorer la r\u00e9sistance et la rigidit\u00e9 des produits en plastique<\/h2>\n\n\n\n<p><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/astra-portfolio\/grinding-and-classifying-system-for-the-production-of-calcium-carbonate\/\">Carbonate de calcium<\/a> Le (CaCO\u2083) peut \u00eatre utilis\u00e9 pour am\u00e9liorer les propri\u00e9t\u00e9s m\u00e9caniques des produits, notamment la rigidit\u00e9, la r\u00e9sistance \u00e0 la rupture, la r\u00e9sistance \u00e0 la traction et la r\u00e9sistance aux chocs. Par exemple, l&#039;utilisation de carbonate de calcium comme agent de renforcement dans la production de films plastiques peut am\u00e9liorer leur rigidit\u00e9, augmenter significativement leur rigidit\u00e9 et faciliter leur gondolage \u00e0 plat. Pour les films polyester aliphatiques PBS, PLA et PHA, l&#039;ajout de carbonate de calcium peut am\u00e9liorer le degr\u00e9 d&#039;isotropie. Il peut \u00e9galement compenser leurs d\u00e9fauts de r\u00e9sistance longitudinale \u00e9lev\u00e9e et de faible r\u00e9sistance transversale. Il am\u00e9liore significativement la r\u00e9sistance \u00e0 la d\u00e9chirure.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"457\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-tear-resistance.webp\" alt=\"R\u00e9sistance \u00e0 la d\u00e9chirure du carbonate de calcium (CaCO\u2083)\" class=\"wp-image-3102\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-tear-resistance.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-tear-resistance-300x183.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-tear-resistance-18x12.webp 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Augmenter la stabilit\u00e9 du produit<\/h2>\n\n\n\n<p><strong>Am\u00e9liorer la stabilit\u00e9 dimensionnelle :<\/strong><\/p>\n\n\n\n<p>Lors de la transformation des produits plastiques, des contraintes internes peuvent \u00eatre g\u00e9n\u00e9r\u00e9es en raison d&#039;un refroidissement irr\u00e9gulier ou de modifications des conditions de traitement. Le carbonate de calcium pr\u00e9sente un faible coefficient de dilatation thermique (3,0 \u00d7 10-6\/\u2103), une faible conductivit\u00e9 thermique et une r\u00e9sistance thermique stable. Ajout\u00e9 aux plastiques comme charge, il peut contribuer au soutien du squelette et r\u00e9duire le coefficient de dilatation thermique global du mat\u00e9riau composite. Il r\u00e9duit ainsi les contraintes internes et les variations dimensionnelles dues aux variations de temp\u00e9rature, am\u00e9liorant ainsi la stabilit\u00e9 dimensionnelle. De mani\u00e8re g\u00e9n\u00e9rale, l&#039;effet du carbonate de calcium sur la stabilit\u00e9 dimensionnelle est fortement li\u00e9 \u00e0 la morphologie. Les charges sph\u00e9riques offrent d&#039;excellents r\u00e9sultats, tandis que les charges granulaires, feuillet\u00e9es et fibreuses sont l\u00e9g\u00e8rement inf\u00e9rieures.<\/p>\n\n\n\n<p><strong>Am\u00e9liorer la r\u00e9sistance \u00e0 la chaleur<\/strong>\uff1a<\/p>\n\n\n\n<p>Certains produits plastiques, comme le PVC, pr\u00e9sentent une tr\u00e8s faible stabilit\u00e9 thermique et ne peuvent rester stables \u00e0 haute temp\u00e9rature, ce qui les rend sujets \u00e0 la d\u00e9composition. Le carbonate de calcium peut non seulement exploiter sa propre stabilit\u00e9 thermique, mais aussi entraver le mouvement des cha\u00eenes mol\u00e9culaires organiques. Par cons\u00e9quent, la temp\u00e9rature de cristallisation du mat\u00e9riau composite augmente progressivement, entra\u00eenant une diminution de la cristallinit\u00e9 \u00e0 haute temp\u00e9rature. Au final, la stabilit\u00e9 thermique du mat\u00e9riau composite est consid\u00e9rablement am\u00e9lior\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Am\u00e9liorer les propri\u00e9t\u00e9s de surface<\/h2>\n\n\n\n<p>La tension superficielle d&#039;un film plastique est l&#039;une de ses propri\u00e9t\u00e9s physiques importantes. Elle influence directement les proc\u00e9d\u00e9s de transformation secondaires tels que l&#039;impression \u00e0 l&#039;encre, l&#039;adh\u00e9rence du rev\u00eatement et le collage avec d&#039;autres mat\u00e9riaux.<br>D&#039;une mani\u00e8re g\u00e9n\u00e9rale, la tension superficielle d&#039;un film plastique d\u00e9pend de son \u00e9nergie libre superficielle. Cependant, la plupart des films plastiques, tels que les films polyol\u00e9fines (PEBD, PEHD, PEBDL, PP), sont des polym\u00e8res apolaires. Leur \u00e9nergie libre superficielle est faible, leur tension superficielle humide est faible et le rev\u00eatement adh\u00e8re difficilement. L&#039;ajout de carbonate de calcium (CaCO\u2083) peut am\u00e9liorer la rugosit\u00e9 de surface, augmentant ainsi la tension superficielle du mat\u00e9riau composite. Il offre \u00e9galement une excellente adsorption, am\u00e9liorant ainsi les propri\u00e9t\u00e9s de rev\u00eatement et d&#039;impression du mat\u00e9riau composite.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"494\" height=\"339\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-improves-surface-properties.webp\" alt=\"Le carbonate de calcium (CaCO\u2083) am\u00e9liore les propri\u00e9t\u00e9s de surface\" class=\"wp-image-3103\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-improves-surface-properties.webp 494w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-improves-surface-properties-300x206.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-CaCO\u2083-improves-surface-properties-18x12.webp 18w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">En tant que porog\u00e8ne<\/h2>\n\n\n\n<p>Des particules de carbonate de calcium (CaCO\u2083) peuvent \u00eatre ajout\u00e9es \u00e0 la matrice polym\u00e8re comme \u00ab\u00a0porog\u00e8ne\u00a0\u00bb. Ce mat\u00e9riau composite est coul\u00e9 ou souffl\u00e9 en un film, qui est ensuite \u00e9tir\u00e9. Cela peut provoquer un d\u00e9collement de l&#039;interface entre la matrice polym\u00e8re et les particules de carbonate de calcium, cr\u00e9ant de minuscules trous (environ 0,01 \u00e0 10\u00a0\u00b5m). Cela conf\u00e8re au film une fonction respirante et imperm\u00e9able.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"406\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-pore-former.webp\" alt=\"Agent porog\u00e8ne \u00e0 base de carbonate de calcium (CaCO\u2083)\" class=\"wp-image-3104\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-pore-former.webp 567w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-pore-former-300x215.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-pore-former-18x12.webp 18w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Am\u00e9liorer les avantages environnementaux<\/h2>\n\n\n\n<p><strong>Effet de suppression de la fum\u00e9e :<\/strong><\/p>\n\n\n\n<p>Le CaCO3 peut r\u00e9agir avec les halog\u00e9nures d&#039;hydrog\u00e8ne pr\u00e9sents dans la fum\u00e9e pour produire du CaCl2 stable, etc. Par cons\u00e9quent, l&#039;ajout de carbonate de calcium dans des polym\u00e8res tels que le chlorure de vinyle, le poly\u00e9thyl\u00e8ne chlorosulfon\u00e9 et le caoutchouc chloropr\u00e8ne, qui produisent des halog\u00e9nures d&#039;hydrog\u00e8ne lors de leur combustion, permet d&#039;obtenir un bon effet de suppression des fum\u00e9es. Parall\u00e8lement, les minuscules trous form\u00e9s par le carbonate de calcium dans les plastiques peuvent \u00e9galement augmenter la surface combustible en contact avec l&#039;oxyg\u00e8ne, ce qui favorise une incin\u00e9ration plus compl\u00e8te et r\u00e9duit le d\u00e9gagement de fum\u00e9es noires. Cependant, la r\u00e9action de combustion \u00e9tant une r\u00e9action h\u00e9t\u00e9rog\u00e8ne solide-gaz, elle ne peut se produire qu&#039;\u00e0 la surface de particules solides. Par cons\u00e9quent, la granulom\u00e9trie des particules de CaCO3 devient un facteur important dans l&#039;effet de suppression des fum\u00e9es. Seules les particules minuscules ont une surface sp\u00e9cifique beaucoup plus grande. Plus la granulom\u00e9trie du carbonate de calcium est fine, meilleur est l&#039;effet de suppression des fum\u00e9es.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"287\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-smoke-suppressant.webp\" alt=\"Suppresseur de fum\u00e9e au carbonate de calcium (CaCO\u2083)\" class=\"wp-image-3105\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-smoke-suppressant.webp 500w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-smoke-suppressant-300x172.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonateCaCO\u2083-smoke-suppressant-18x10.webp 18w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<p><strong>Favoriser la d\u00e9gradation :<\/strong><\/p>\n\n\n\n<p>Lorsque des sacs en poly\u00e9thyl\u00e8ne contenant du carbonate de calcium sont enterr\u00e9s, ce dernier peut r\u00e9agir avec le dioxyde de carbone et l&#039;eau pour former du Ca(HCO3)2 hydrosoluble et quitter le film. De minuscules trous se forment alors dans le film, augmentant la surface de contact entre le film plastique et l&#039;air ambiant et les micro-organismes, favorisant ainsi la d\u00e9gradation du produit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Am\u00e9liorer les performances de moussage<\/h2>\n\n\n\n<p>Le carbonate de calcium peut agir comme agent de nucl\u00e9ation, absorbant le gaz moussant pour former de minuscules noyaux de bulles dans le polym\u00e8re. Il peut \u00e9galement ralentir la d\u00e9formation et la mobilit\u00e9 de la mati\u00e8re fondue, inhibant ainsi l&#039;expansion rapide des pores. Cela affine les pores, favorise l&#039;effet moussant et produit des plastiques expans\u00e9s.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"435\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance-1024x435.webp\" alt=\"Le carbonate de calcium am\u00e9liore les performances de moussage\" class=\"wp-image-3106\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance-1024x435.webp 1024w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance-300x128.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance-768x326.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance-18x8.webp 18w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/Calcium-carbonate-improves-foaming-performance.webp 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>La taille et la quantit\u00e9 de carbonate de calcium ont une grande influence sur les performances de moussage des mati\u00e8res plastiques. Des particules trop petites s&#039;agglom\u00e9rent facilement et ne peuvent jouer le r\u00f4le d&#039;agent de nucl\u00e9ation, tandis que des particules trop grosses ne peuvent pas jouer le r\u00f4le d&#039;agent moussant. Par cons\u00e9quent, leur taille doit g\u00e9n\u00e9ralement \u00eatre inf\u00e9rieure \u00e0 5 \u03bcm, mais leur agglom\u00e9ration est difficile. En ce qui concerne la quantit\u00e9 ajout\u00e9e, une quantit\u00e9 trop faible peut entra\u00eener la formation d&#039;un nombre insuffisant de points de nucl\u00e9ation dans la masse fondue, ce qui entra\u00eene un faible taux de moussage. Une quantit\u00e9 trop \u00e9lev\u00e9e peut entra\u00eener une faible r\u00e9sistance \u00e0 la fusion, ce qui entra\u00eene un nombre excessif de bulles \u00e9clat\u00e9es, ce qui r\u00e9duit \u00e9galement le taux de moussage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">limitation<\/h2>\n\n\n\n<p>Bien que le carbonate de calcium joue un r\u00f4le important, son application dans les produits en plastique pr\u00e9sente \u00e9galement certaines limites, notamment les aspects suivants :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u2019ajout de carbonate de calcium peut r\u00e9duire dans une certaine mesure certaines propri\u00e9t\u00e9s des produits en plastique, telles que la t\u00e9nacit\u00e9 et la ductilit\u00e9.<\/li>\n\n\n\n<li>En raison de ses propri\u00e9t\u00e9s physiques et chimiques, le carbonate de calcium peut ne pas r\u00e9pondre pleinement aux besoins de certains produits plastiques hautes performances r\u00e9pondant \u00e0 des exigences sp\u00e9cifiques. Par exemple, dans les produits plastiques soumis \u00e0 des exigences de transparence extr\u00eamement \u00e9lev\u00e9es, la pr\u00e9sence de carbonate de calcium peut affecter la transparence du produit.<\/li>\n\n\n\n<li>La compatibilit\u00e9 entre le carbonate de calcium et la matrice plastique n&#039;est parfois pas optimale, ce qui peut entra\u00eener une r\u00e9sistance insuffisante de l&#039;interface du mat\u00e9riau composite. Cela affecte les performances globales du produit plastique.<\/li>\n\n\n\n<li>De plus, la dispersibilit\u00e9 du carbonate de calcium est parfois difficile \u00e0 contr\u00f4ler. Une dispersion in\u00e9gale peut entra\u00eener des diff\u00e9rences de performance locale du produit plastique.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Dans le vaste monde de la modification des plastiques, le carbonate de calcium n&#039;est en aucun cas un simple \u00e9l\u00e9ment secondaire, mais un expert polyvalent et reconnu. \u00c0 l&#039;avenir, gr\u00e2ce \u00e0 l&#039;approfondissement continu de la recherche scientifique, le carbonate de calcium lib\u00e9rera certainement un potentiel accru dans le domaine de la modification des plastiques. Il insufflera une dynamique d&#039;innovation constante \u00e0 la nouvelle industrie du plastique, vers un d\u00e9veloppement haute performance, multifonctionnel et \u00e9cologique, et \u00e9crira un chapitre plus brillant.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/\">Poudre \u00e9pique<\/a><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"860\" height=\"484\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER.webp\" alt=\"POUDRE \u00c9PIQUE\" class=\"wp-image-2991\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER.webp 860w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-300x169.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-768x432.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/03\/EPIC-POWDER-18x10.webp 18w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><figcaption class=\"wp-element-caption\">POUDRE \u00c9PIQUE<\/figcaption><\/figure>\n\n\n\n<p>Epic Powder, plus de 20 ans d&#039;exp\u00e9rience dans l&#039;industrie des poudres ultrafines. Nous promouvons activement le d\u00e9veloppement futur des poudres ultrafines, en nous concentrant sur les proc\u00e9d\u00e9s de concassage, de broyage, de classification et de transformation. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es\u00a0! Notre \u00e9quipe d&#039;experts s&#039;engage \u00e0 vous fournir des produits et services de haute qualit\u00e9 pour optimiser la valeur de vos proc\u00e9d\u00e9s de traitement des poudres. Epic Powder\u00a0: votre expert de confiance en traitement des poudres\u00a0!<\/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\/3098#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\/3098#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 (CaCO\u2083) est un compos\u00e9 inorganique courant. Dans la nature, il existe sous de nombreuses formes, comme la calcite, le calcaire, le marbre, etc. Il est le principal composant de nombreuses roches et min\u00e9raux. D&#039;un point de vue chimique, le carbonate de calcium se d\u00e9compose en oxyde de calcium (CaO) et en dioxyde de carbone (CO\u2082) \u00e0 haute temp\u00e9rature. Il peut r\u00e9agir [\u2026]<\/p>","protected":false},"author":1,"featured_media":3107,"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 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":[7,1,6],"tags":[],"class_list":["post-3098","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surface-modification","category-ultrafine-air-classifier","category-ultrafine-powder-grinding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The role of calcium carbonate (CaCO\u2083) in plastic modification - Calcium Carbonate Production Line<\/title>\n<meta name=\"description\" content=\"Calcium carbonate (CaCO\u2083) is a common inorganic compound. 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