{"id":4028,"date":"2026-08-28T13:47:33","date_gmt":"2026-08-28T05:47:33","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=4028"},"modified":"2026-08-28T13:47:35","modified_gmt":"2026-08-28T05:47:35","slug":"how-do-the-calcium-carbonate-grinding-and-modification-processes-determine-blown-film-performance","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/how-do-the-calcium-carbonate-grinding-and-modification-processes-determine-blown-film-performance\/","title":{"rendered":"Comment les proc\u00e9d\u00e9s de broyage et de modification du carbonate de calcium d\u00e9terminent-ils les performances du film souffl\u00e9\u00a0?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Le carbonate de calcium est la charge min\u00e9rale la plus utilis\u00e9e et consomm\u00e9e dans l&#039;industrie des plastiques. Dans les films souffl\u00e9s et autres produits plastiques, il sert non seulement de charge \u00e9conomique, mais aussi de modificateur min\u00e9ral haute performance. Cependant, son efficacit\u00e9 au sein de la matrice plastique est d\u00e9termin\u00e9e par les agents en amont. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/\">\u00e9quipement de broyage<\/a> (syst\u00e8me de classification des broyeurs \u00e0 boulets, broyeur \u00e0 rouleaux annulaires) et \u00e9quipement de modification de surface (modificateur continu).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I. Source de plastique de haute qualit\u00e9 de grade C\u00a0: \u00e9quipements de broyage et proc\u00e9d\u00e9s de modification continue<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le choix du type de poudre de carbonate de calcium appropri\u00e9 est essentiel pour obtenir d&#039;excellentes performances dans les applications plastiques. Cela implique que la poudre min\u00e9rale pr\u00e9sente une granulom\u00e9trie sp\u00e9cifique et \u00e9troite, une puret\u00e9 \u00e9lev\u00e9e et des propri\u00e9t\u00e9s de modification de surface optimis\u00e9es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/ball-mill\/\">Syst\u00e8me de broyage \u00e0 billes et de classification<\/a>Pr\u00e9paration de micropoudres \u00e0 grande \u00e9chelle et de haute pr\u00e9cision<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Caract\u00e9ristiques du processus\u00a0:<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Utilise un broyeur \u00e0 billes ultrafin \u00e0 sec combin\u00e9 \u00e0 un classificateur \u00e0 air de haute pr\u00e9cision en fonctionnement s\u00e9rie\/parall\u00e8le pour un broyage efficace du carbonate de calcium.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avantages en mati\u00e8re de performance\u00a0:<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ce proc\u00e9d\u00e9 permet de produire de mani\u00e8re stable du carbonate de calcium lourd ultrafin, d&#039;une granulom\u00e9trie de 800 \u00e0 3000 mesh, voire plus. Un contr\u00f4le rigoureux gr\u00e2ce au classificateur \u00e0 air retient efficacement les particules de taille excessive. Il \u00e9limine les dommages caus\u00e9s par les particules grossi\u00e8res aux zones \u00e0 parois fines des films souffl\u00e9s et garantit une distribution granulom\u00e9trique uniforme. Il pr\u00e9vient la formation de points de cristallisation et la rupture du film lors de son \u00e9tirage pendant la production.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/roller-mill\/\">Broyeur \u00e0 rouleaux annulaires<\/a>Un choix \u00e9conomique pour une finesse moyenne \u00e0 \u00e9lev\u00e9e<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Caract\u00e9ristiques du processus\u00a0: <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Utilise le principe de laminage et de broyage de pistes annulaires et de rouleaux multicouches, int\u00e9grant le broyage et la classification du carbonate de calcium.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avantages en mati\u00e8re de performance\u00a0:<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Comparativement aux broyeurs traditionnels, les broyeurs \u00e0 anneaux consomment moins d&#039;\u00e9nergie, produisent des particules de poudre de bonne sph\u00e9ricit\u00e9 et pr\u00e9sentent une surface sp\u00e9cifique mod\u00e9r\u00e9e, ce qui les rend extr\u00eamement rentables. Ils sont couramment utilis\u00e9s pour la production de poudre de carbonate de calcium de finesse moyenne \u00e0 \u00e9lev\u00e9e, destin\u00e9e aux charges pour films souffl\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/surface-modification\/\">Machine de rev\u00eatement continu<\/a>L\u2019\u00e9tape cl\u00e9 de la transformation d\u2019\u00ab hydrophile \u00bb en \u00ab ol\u00e9ophile \u00bb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Caract\u00e9ristiques du processus\u00a0:<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La poudre de carbonate de calcium natif pr\u00e9sente une surface hydrophile et ol\u00e9ophobe. Son m\u00e9lange direct avec des r\u00e9sines polyol\u00e9fines entra\u00eene facilement une agglom\u00e9ration. Le proc\u00e9d\u00e9 de modification en continu utilise une dispersion \u00e0 grande vitesse, un chauffage \u00e0 temp\u00e9rature contr\u00f4l\u00e9e et une pulv\u00e9risation par atomisation efficace d&#039;agents de rev\u00eatement (tels que des aluminates, de l&#039;acide st\u00e9arique ou des agents de couplage). Il permet d&#039;obtenir un rev\u00eatement \u00e0 haut rendement des particules de carbonate de calcium.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avantages en mati\u00e8re de performance\u00a0:<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s traitement avec le modificateur continu, l&#039;\u00e9nergie de surface du carbonate de calcium est consid\u00e9rablement r\u00e9duite, le transformant d&#039;hydrophile \u00e0 ol\u00e9ophile. Il peut \u00eatre parfaitement dispers\u00e9 dans le polym\u00e8re fondu, am\u00e9liorant ainsi grandement la compatibilit\u00e9 et l&#039;adh\u00e9rence interfaciale avec les r\u00e9sines plastiques.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film.webp\" alt=\"Broyage du carbonate de calcium en film\" class=\"wp-image-4029\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/08\/Calcium-Carbonate-Grinding-in-film-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">II. Comment ajouter directement de la poudre de CaCO3 \u00e0 une ligne de production de film souffl\u00e9 ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les proc\u00e9d\u00e9s traditionnels, le carbonate de calcium est g\u00e9n\u00e9ralement transform\u00e9 en m\u00e9lange-ma\u00eetre de charge avant d&#039;\u00eatre ajout\u00e9 aux polyol\u00e9fines. D\u00e9sormais, des lignes de production sp\u00e9cialis\u00e9es int\u00e9grant la technologie de superfusion permettent d&#039;ajouter directement de la poudre de CaCO3 broy\u00e9e et modifi\u00e9e aux lignes de production de tuyaux, de feuilles de polypropyl\u00e8ne et de films souffl\u00e9s.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Configuration de l&#039;\u00e9quipement\u00a0: <\/strong>Dot\u00e9e d&#039;une extrudeuse \u00e0 double vis corotative sp\u00e9ciale, poss\u00e9dant d&#039;excellentes capacit\u00e9s de cisaillement et de dispersion.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Structure de production :<\/strong> Peut \u00eatre con\u00e7ue comme une ligne de production monocouche ou une ligne de production \u00e0 trois couches \u00e9quip\u00e9e de deux extrudeuses standard pour la production de surfaces ultra-minces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Avantages de l&#039;addition directe\u00a0:<\/strong> \u00c9limine totalement la consommation d&#039;\u00e9nergie li\u00e9e \u00e0 la granulation secondaire du m\u00e9lange-ma\u00eetre, ce qui entra\u00eene une r\u00e9duction significative des co\u00fbts des mati\u00e8res premi\u00e8res.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">III. Principaux avantages du CaCO3 dans les films souffl\u00e9s<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Outre ses propri\u00e9t\u00e9s anti-adh\u00e9rentes, le carbonate de calcium poss\u00e8de de nombreuses autres propri\u00e9t\u00e9s. Il peut modifier les caract\u00e9ristiques physiques des polym\u00e8res fondus. Compar\u00e9 aux polyol\u00e9fines non charg\u00e9es, le CaCO\u2083 pr\u00e9sente une densit\u00e9 plus \u00e9lev\u00e9e, une conductivit\u00e9 thermique plus faible et une capacit\u00e9 thermique moindre, et il conserve une forme solide lors de l&#039;extrusion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Am\u00e9lioration de l&#039;efficacit\u00e9 du traitement<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Augmentation du d\u00e9bit de l&#039;extrudeuse\u00a0: <\/strong>La conductivit\u00e9 thermique \u00e9lev\u00e9e du min\u00e9ral acc\u00e9l\u00e8re la fusion et le refroidissement de la r\u00e9sine.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Charge d&#039;\u00e9quipement r\u00e9duite\u00a0: <\/strong>R\u00e9duit la pression de fusion et le couple de l&#039;extrudeuse, ce qui permet une meilleure homog\u00e9n\u00e9isation de la mati\u00e8re fondue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Efficacit\u00e9 de refroidissement acc\u00e9l\u00e9r\u00e9e\u00a0:<\/strong> Am\u00e9liore l&#039;efficacit\u00e9 de la production et acc\u00e9l\u00e8re le refroidissement de la bulle de film.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Am\u00e9lioration des performances des films souffl\u00e9s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L&#039;ajout de CaCO3, raffin\u00e9 par broyage \u00e0 billes\/broyage annulaire et trait\u00e9 en surface par une machine de modification continue, \u00e0 une matrice polym\u00e8re semi-cristalline peut conduire aux am\u00e9liorations de performance suivantes\u00a0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rigidit\u00e9 et r\u00e9sistance aux chocs\u00a0:<\/strong> Augmente la rigidit\u00e9 du film et am\u00e9liore la r\u00e9sistance aux chocs des marteaux de chute.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Propri\u00e9t\u00e9s physiques :<\/strong> Excellent effet anti-blocage, propri\u00e9t\u00e9s de barri\u00e8re am\u00e9lior\u00e9es, r\u00e9sistance accrue \u00e0 la propagation des larmes (Elmandorf), tension superficielle l\u00e9g\u00e8rement augment\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Contr\u00f4le de la densit\u00e9\u00a0:<\/strong> Augmente la densit\u00e9 du film lorsqu&#039;il n&#039;est pas \u00e9tir\u00e9 ; diminue la densit\u00e9 apr\u00e8s \u00e9tirement, assurant la perm\u00e9abilit\u00e9 lorsque n\u00e9cessaire.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Applications typiques\u00a0: <\/strong>Sacs de courses, sacs fourre-tout, sacs poubelle, films plastiques, films agricoles, sacs d&#039;emballage r\u00e9sistants, films de support, etc.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img 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<h3 class=\"wp-block-heading\">R\u00e9duction des co\u00fbts et durabilit\u00e9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9duction des co\u00fbts de formulation (r\u00e9duction des doses)\u00a0:<\/strong> L&#039;ajout de CaCO3 augmente la densit\u00e9 du film, mais un poids de film constant peut \u00eatre maintenu en r\u00e9duisant son \u00e9paisseur. Par exemple, pour une teneur en CaCO3 de 30%, il suffit de r\u00e9duire l&#039;\u00e9paisseur du film de 20% pour conserver un poids constant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9duction des co\u00fbts li\u00e9s \u00e0 l&#039;alimentation directe\u00a0: <\/strong>L&#039;alimentation directe peut r\u00e9duire consid\u00e9rablement les co\u00fbts des mati\u00e8res premi\u00e8res (sur la base d&#039;un prix du polym\u00e8re d&#039;environ 1100 \u20ac\/tonne), et m\u00eame dans les cas o\u00f9 le dosage r\u00e9duit n&#039;est pas possible, l&#039;extrusion directe offre toujours un potentiel de r\u00e9duction des co\u00fbts et de renforcement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Durabilit\u00e9 am\u00e9lior\u00e9e\u00a0:<\/strong> La chaleur sp\u00e9cifique des min\u00e9raux de carbonate de calcium est nettement inf\u00e9rieure \u00e0 celle des polym\u00e8res, ce qui permet de r\u00e9aliser d&#039;importantes \u00e9conomies d&#039;\u00e9nergie lors de l&#039;extrusion. L&#039;utilisation de la technologie d&#039;addition directe hyperconverg\u00e9e permet de r\u00e9duire consid\u00e9rablement les \u00e9missions de carbone des produits et leur impact environnemental.<\/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 decoding=\"async\" width=\"360\" height=\"360\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-4010\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp 360w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/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 class=\"wp-block-paragraph\">\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\/4028#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\/4028#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><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 class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Le carbonate de calcium est la charge min\u00e9rale la plus utilis\u00e9e et consomm\u00e9e dans l&#039;industrie des plastiques. Dans les films souffl\u00e9s et autres produits plastiques, il sert non seulement de charge \u00e9conomique, mais aussi de modificateur min\u00e9ral haute performance. Cependant, son efficacit\u00e9 au sein de la matrice plastique est d\u00e9termin\u00e9e par les facteurs en 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