{"id":3773,"date":"2026-04-29T17:10:37","date_gmt":"2026-04-29T09:10:37","guid":{"rendered":"https:\/\/www.nonmetallic-ore.com\/?p=3773"},"modified":"2026-04-29T17:16:15","modified_gmt":"2026-04-29T09:16:15","slug":"how-to-achieve-an-orange-peel-surface-on-petg-3d-prints-the-role-of-calcium-carbonate-fillers","status":"publish","type":"post","link":"https:\/\/www.nonmetallic-ore.com\/fr\/how-to-achieve-an-orange-peel-surface-on-petg-3d-prints-the-role-of-calcium-carbonate-fillers\/","title":{"rendered":"Comment obtenir une surface \u00e0 effet peau d&#039;orange sur des impressions 3D en PETG\u00a0? \u2014 Le r\u00f4le des charges de carbonate de calcium"},"content":{"rendered":"<p>Un nombre croissant de clients d&#039;imprimantes 3D posent la m\u00eame question\u00a0: <em>Peut-on concevoir une texture mate, semblable \u00e0 une peau d&#039;orange, sur <a href=\"https:\/\/en.wikipedia.org\/wiki\/Polyethylene_terephthalate\">impressions PETG<\/a> \u2014 et la poudre de carbonate de calcium peut-elle nous aider \u00e0 y parvenir ?<\/em>\u00a0La r\u00e9ponse est oui, mais les m\u00e9canismes scientifiques sous-jacents sont plus complexes qu&#039;il n&#039;y para\u00eet. Cet article explore comment la brillance de surface du PETG (un polym\u00e8re g\u00e9n\u00e9ralement reconnu pour son aspect brillant) est contr\u00f4l\u00e9e au niveau microstructural, et comment l&#039;ajout de charges de carbonate de calcium appropri\u00e9es permet d&#039;obtenir une texture de surface mate ou \u00e0 effet peau d&#039;orange.<\/p>\n\n\n\n<p><em><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">Point cl\u00e9\u00a0: le brillant de surface n\u2019est pas une propri\u00e9t\u00e9 du rev\u00eatement, mais de sa microstructure. Son contr\u00f4le commence par celui de la charge.<\/mark><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"770\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG_.webp\" alt=\"\" class=\"wp-image-3774\" style=\"aspect-ratio:1.038975172882893;width:720px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG_.webp 800w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG_-300x289.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG_-768x739.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG_-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">1. Principe fondamental : la structure d\u00e9termine les propri\u00e9t\u00e9s de surface<\/mark><\/h2>\n\n\n\n<p>En science des mat\u00e9riaux, les propri\u00e9t\u00e9s macroscopiques observables et mesurables \u2014 notamment le brillant de surface \u2014 sont l&#039;expression directe de la structure microscopique sous-jacente. Ce principe, parfois formul\u00e9 comme \u00ab la structure d\u00e9termine la performance \u00bb, est fondamental pour la conception des finitions de surface des composites polym\u00e8res.<\/p>\n\n\n\n<p>La structure mat\u00e9rielle op\u00e8re \u00e0 deux niveaux qui interagissent entre eux\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Structure \u00e0 phase continue \u2014 la matrice polym\u00e8re elle-m\u00eame, qui d\u00e9termine les propri\u00e9t\u00e9s primaires du mat\u00e9riau<\/li>\n\n\n\n<li>Structure de phase dispers\u00e9e \u2014 les particules de charge r\u00e9parties au sein de la matrice, qui interagissent avec l&#039;interface de surface du polym\u00e8re<\/li>\n<\/ul>\n\n\n\n<p>L&#039;exp\u00e9rience industrielle montre que la phase dispers\u00e9e (la charge) influe le plus sur les propri\u00e9t\u00e9s du mat\u00e9riau \u00e0 deux niveaux microstructuraux sous la surface. Concernant le brillant de surface en particulier, la texture finale est d\u00e9termin\u00e9e par ce qui se passe \u00e0 l&#039;interface polym\u00e8re-charge lors de la solidification.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1920\" height=\"1440\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited.webp\" alt=\"\" class=\"wp-image-3776\" style=\"width:726px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited.webp 1920w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited-300x225.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited-1024x768.webp 1024w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited-768x576.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited-1536x1152.webp 1536w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2026\/04\/PETG-edited-16x12.webp 16w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">2. Le\u00e7ons tir\u00e9es du PVC\u00a0: comment la microstructure r\u00e9duit la brillance<\/mark><\/h2>\n\n\n\n<p>La transformation du PVC offre un point de r\u00e9f\u00e9rence pr\u00e9cieux. Contrairement au PETG, les produits en PVC pr\u00e9sentent g\u00e9n\u00e9ralement une brillance mod\u00e9r\u00e9e\u00a0; comprendre ce ph\u00e9nom\u00e8ne permet de d\u00e9gager les m\u00e9canismes applicables \u00e0 la conception de la texture de surface d\u2019autres polym\u00e8res.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Structure granulaire et inad\u00e9quation thermique<\/h3>\n\n\n\n<p>Le PVC de qualit\u00e9 suspension se pr\u00e9sente sous forme de granul\u00e9s. Lors de l&#039;extrusion ou du moulage par injection, ces granul\u00e9s forment une structure fondue stratifi\u00e9e\u00a0: certains granul\u00e9s fondent compl\u00e8tement, d&#039;autres conservent un noyau solide. Apr\u00e8s refroidissement et solidification de la pi\u00e8ce, la surface pr\u00e9sente deux phases distinctes\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Noyaux solides non fondus \u2014 granul\u00e9s qui n&#039;ont pas \u00e9t\u00e9 enti\u00e8rement plastifi\u00e9s lors du traitement<\/li>\n\n\n\n<li>Une couche superficielle fondue \u2014 polym\u00e8re enti\u00e8rement fondu qui s&#039;est solidifi\u00e9 \u00e0 la surface<\/li>\n<\/ul>\n\n\n\n<p>Ces deux phases pr\u00e9sentent des coefficients de retrait thermique tr\u00e8s diff\u00e9rents. Lors du refroidissement du mat\u00e9riau, cette diff\u00e9rence engendre des micro-contractions\u00a0: des creux localis\u00e9s se forment autour des joints de grains et des irr\u00e9gularit\u00e9s de retrait apparaissent dans la zone fondue. Il en r\u00e9sulte une topographie de surface micro-convexe-concave et une brillance r\u00e9duite.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La chimie qui se cache derri\u00e8re tout \u00e7a<\/h3>\n\n\n\n<p>Au niveau mol\u00e9culaire, les groupements chloro\u00e9thane des cha\u00eenes polym\u00e8res de PVC polarisent le nuage \u00e9lectronique, introduisant des propri\u00e9t\u00e9s acide-base de Lewis en plus des forces de van der Waals. Ceci limite l&#039;efficacit\u00e9 du transport \u00e9lectronique du polym\u00e8re et rend difficile l&#039;obtention d&#039;un refroidissement uniforme sur toute la section transversale du mat\u00e9riau, notamment pour les pi\u00e8ces d&#039;\u00e9paisseur importante. Il en r\u00e9sulte un renforcement des irr\u00e9gularit\u00e9s de surface induites par le d\u00e9saccord thermique d\u00e9crit pr\u00e9c\u00e9demment.<\/p>\n\n\n\n<p><em><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">Conclusion\u00a0: Le faible brillant du PVC n\u2019est pas accidentel\u00a0; il r\u00e9sulte d\u2019une combinaison pr\u00e9visible de microstructure granulaire et d\u2019un retrait thermique in\u00e9gal lors de la solidification. Le m\u00eame raisonnement s\u2019applique d\u00e9lib\u00e9r\u00e9ment au PETG.<\/mark><\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">3. Pourquoi le PETG est naturellement brillant \u2014 et comment le modifier<\/mark><\/h2>\n\n\n\n<p>Le PETG (poly\u00e9thyl\u00e8ne t\u00e9r\u00e9phtalate glycol) se comporte tr\u00e8s diff\u00e9remment du PVC au niveau mol\u00e9culaire. Son architecture chimique \u2014 de grandes structures conjugu\u00e9es form\u00e9es de cycles benz\u00e9niques et de groupes acide carboxylique \u2014 lui conf\u00e8re deux propri\u00e9t\u00e9s qui produisent sa surface brillante caract\u00e9ristique\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rigidit\u00e9 mol\u00e9culaire \u00e9lev\u00e9e et alignement r\u00e9gulier des cha\u00eenes \u2014 le polym\u00e8re se solidifie en une surface ordonn\u00e9e et lisse<\/li>\n\n\n\n<li>Excellente conductivit\u00e9 \u00e9lectronique \u2014 permet une dissipation thermique uniforme pendant le refroidissement, minimisant ainsi les gradients thermiques.<\/li>\n<\/ul>\n\n\n\n<p>Ces propri\u00e9t\u00e9s combin\u00e9es font que le PETG non modifi\u00e9 se solidifie en une surface lisse et brillante, pr\u00e9sentant une microtopographie tr\u00e8s faible. Pour obtenir une texture peau d&#039;orange, il est n\u00e9cessaire de perturber cette solidification ordonn\u00e9e.<\/p>\n\n\n\n<p><strong>Deux strat\u00e9gies pour r\u00e9duire la brillance du PETG<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L&#039;ajout d&#039;un \u00e9lastom\u00e8re partiellement incompatible (particules de caoutchouc ou d&#039;\u00e9lastom\u00e8re \u00e0 compatibilit\u00e9 limit\u00e9e) introduit des microstructures irr\u00e9guli\u00e8res \u00e0 l&#039;interface de la phase dispers\u00e9e, perturbant l&#039;alignement r\u00e9gulier de la matrice PETG.<\/li>\n\n\n\n<li>Ajouter une charge de carbonate de calcium de conception pr\u00e9cise \u2014 la charge interagit avec l&#039;interface polym\u00e8re-surface lors de la solidification, cr\u00e9ant une microtopographie contr\u00f4l\u00e9e<\/li>\n<\/ul>\n\n\n\n<p>Pour la production de filaments d&#039;impression 3D industrielle, le carbonate de calcium est l&#039;option la plus pratique et la plus \u00e9volutive, notamment lorsque la taille des particules, leur morphologie et leur chimie de surface sont contr\u00f4l\u00e9es avec pr\u00e9cision.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">4. La poudre de carbonate de calcium peut-elle affecter la brillance de la surface d&#039;impression 3D\u00a0?<\/mark><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"636\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/08\/calcium-carbonate-filler.webp\" alt=\"charge de carbonate de calcium\" class=\"wp-image-3430\" style=\"aspect-ratio:1.2578786851914605;width:734px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/08\/calcium-carbonate-filler.webp 800w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/08\/calcium-carbonate-filler-300x239.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/08\/calcium-carbonate-filler-768x611.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/08\/calcium-carbonate-filler-15x12.webp 15w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Charge de carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<p><strong>Oui, absolument. <\/strong>Ceci est confirm\u00e9 \u00e0 la fois par la th\u00e9orie des sciences des mat\u00e9riaux et par l&#039;exp\u00e9rience pratique de la production. M\u00eame le carbonate de calcium broy\u00e9 (GCC) contenant plus de 801 TP3T de particules inf\u00e9rieures \u00e0 2 microns produit une brillance sensiblement inf\u00e9rieure dans le PVC moul\u00e9 par injection \u2014 et cet effet se retrouve dans le PETG lorsque la charge est correctement s\u00e9lectionn\u00e9e et mise en \u0153uvre.<br>Le m\u00e9canisme est identique \u00e0 celui d\u00e9crit pr\u00e9c\u00e9demment\u00a0: lors de la solidification, les particules de carbonate de calcium \u00e0 la surface du polym\u00e8re cr\u00e9ent une topographie \u00e0 l\u2019\u00e9chelle microm\u00e9trique. La taille, la forme, la chimie de surface et la distribution de ces particules d\u00e9terminent si l\u2019effet est subtil ou marqu\u00e9, et s\u2019il produit un fini mat impeccable ou une texture peau d\u2019orange ma\u00eetris\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">5. Carbonate de calcium granul\u00e9 (GCC) vs carbonate de calcium poreux (PCC)\u00a0: Choisir le carbonate de calcium adapt\u00e9 \u00e0 votre application<\/mark><\/h2>\n\n\n\n<p>Tous les carbonates de calcium ne sont pas \u00e9quivalents. Les deux principales formes \u2014 le carbonate de calcium broy\u00e9 (GCC) et le carbonate de calcium pr\u00e9cipit\u00e9 (PCC) \u2014 se comportent tr\u00e8s diff\u00e9remment dans les syst\u00e8mes polym\u00e8res, et le choix du mauvais type est l&#039;une des erreurs de formulation les plus fr\u00e9quentes.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Propri\u00e9t\u00e9<\/strong><\/td><td><strong>GCC (carbonate de calcium broy\u00e9)<\/strong><\/td><td><strong>PCC (carbonate de calcium pr\u00e9cipit\u00e9)<\/strong><\/td><\/tr><tr><td>Interaction de surface<\/td><td>Faible<\/td><td>Haut<\/td><\/tr><tr><td>impact de la viscosit\u00e9 \u00e0 chaud<\/td><td>Faible \u2014 maintient un bon d\u00e9bit<\/td><td>\u00c9lev\u00e9 \u2014 augmente sensiblement la viscosit\u00e9<\/td><\/tr><tr><td>Fluidit\u00e9<\/td><td>Haut<\/td><td>Faible<\/td><\/tr><tr><td>capacit\u00e9 de charge du mat\u00e9riau de remplissage<\/td><td>Haut<\/td><td>Limit\u00e9<\/td><\/tr><tr><td>Absorption d&#039;huile<\/td><td>Faible<\/td><td>\u00c9lev\u00e9 \u2014 probl\u00e9matique dans les adh\u00e9sifs<\/td><\/tr><tr><td>Capacit\u00e9 ultra-fine<\/td><td>R\u00e9alisable par classification a\u00e9rienne<\/td><td>Intrins\u00e8quement fin (\u00e9chelle nanom\u00e9trique disponible)<\/td><\/tr><tr><td>Cas d&#039;utilisation optimal<\/td><td>Applications \u00e0 forte charge et critiques en termes de capacit\u00e9 de traitement<\/td><td>Renforcement, applications critiques en termes de surface<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">La r\u00e8gle critique pour la transformation des polym\u00e8res<\/h3>\n\n\n\n<p><em><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">Dans la transformation des polym\u00e8res, la r\u00e9ussite de la fabrication des pi\u00e8ces est primordiale. Le choix de la charge doit privil\u00e9gier la facilit\u00e9 de mise en \u0153uvre\u00a0: une charge qui conf\u00e8re un brillant de surface id\u00e9al mais engendre des difficult\u00e9s d\u2019extrusion n\u2019est pas une solution viable.<\/mark><\/em><\/p>\n\n\n\n<p>C\u2019est pourquoi le GCC, gr\u00e2ce \u00e0 sa faible viscosit\u00e9 et sa grande fluidit\u00e9, est g\u00e9n\u00e9ralement le point de d\u00e9part privil\u00e9gi\u00e9 pour les applications de filament PETG en impression 3D. Le PCC peut offrir des avantages en mati\u00e8re de renforcement, mais son utilisation doit \u00eatre prudente, car il augmente consid\u00e9rablement la viscosit\u00e9 \u00e0 l\u2019\u00e9tat fondu, ce qui peut entra\u00eener une instabilit\u00e9 lors de l\u2019extrusion du filament.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">6. Comment Epic Powder Machinery permet un contr\u00f4le pr\u00e9cis de la brillance des surfaces<\/mark><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"800\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/12\/Air-Classifer-and-Ball-Mill1.webp\" alt=\"Classificateur d&#039;air et broyeur \u00e0 boulets1\" class=\"wp-image-3639\" style=\"width:744px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/12\/Air-Classifer-and-Ball-Mill1.webp 1000w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/12\/Air-Classifer-and-Ball-Mill1-300x240.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/12\/Air-Classifer-and-Ball-Mill1-768x614.webp 768w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/12\/Air-Classifer-and-Ball-Mill1-15x12.webp 15w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Classificateur d&#039;air et broyeur \u00e0 boulets1<\/figcaption><\/figure>\n\n\n\n<p><strong>Machines \u00e0 poudre Epic<\/strong>\u00a0Notre entreprise est sp\u00e9cialis\u00e9e dans le traitement ultrafin et la modification de surface des min\u00e9raux non m\u00e9talliques, notamment le carbonate de calcium. <strong>classification a\u00e9rienne<\/strong> et <strong>technologies de rev\u00eatement de surface<\/strong> offrir aux clients un contr\u00f4le pr\u00e9cis sur les trois variables qui d\u00e9terminent l&#039;influence du carbonate de calcium sur la brillance de surface\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La taille et la distribution des particules contr\u00f4lent l&#039;\u00e9chelle de la microtopographie de surface.<\/li>\n\n\n\n<li>Morphologie des particules \u2014 les particules rhombo\u00e9driques, scal\u00e9no\u00e9driques et aciculaires interagissent diff\u00e9remment avec la matrice polym\u00e8re<\/li>\n\n\n\n<li>Chimie de surface \u2014 l&#039;acide st\u00e9arique et d&#039;autres agents de rev\u00eatement modifient l&#039;interaction \u00e0 l&#039;interface polym\u00e8re-charge<\/li>\n<\/ul>\n\n\n\n<p>Ce contr\u00f4le \u00e0 trois variables permet d&#039;obtenir une finition de surface sp\u00e9cifique \u2014 allant d&#039;un fini brillant \u00e0 un fini mat uniforme, en passant par une texture peau d&#039;orange bien d\u00e9finie \u2014 plut\u00f4t que d&#039;accepter le r\u00e9sultat obtenu avec le mastic non modifi\u00e9.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.nonmetallic-ore.com\/fr\/machines\/\">Machines \u00e0 poudre Epic<\/a><\/strong>\u00a0Nous sommes sp\u00e9cialis\u00e9s dans le traitement ultrafin et la modification de surface des min\u00e9raux non m\u00e9talliques, notamment le carbonate de calcium. Nos technologies de classification pneumatique et de rev\u00eatement de surface offrent \u00e0 nos clients un contr\u00f4le pr\u00e9cis sur les trois variables qui d\u00e9terminent l&#039;influence du carbonate de calcium sur la brillance de surface\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La taille et la distribution des particules contr\u00f4lent l&#039;\u00e9chelle de la microtopographie de surface.<\/li>\n\n\n\n<li>Morphologie des particules \u2014 les particules rhombo\u00e9driques, scal\u00e9no\u00e9driques et aciculaires interagissent diff\u00e9remment avec la matrice polym\u00e8re<\/li>\n\n\n\n<li>Chimie de surface \u2014 l&#039;acide st\u00e9arique et d&#039;autres agents de rev\u00eatement modifient l&#039;interaction \u00e0 l&#039;interface polym\u00e8re-charge<\/li>\n<\/ul>\n\n\n\n<p>Ce contr\u00f4le \u00e0 trois variables permet d&#039;obtenir une finition de surface sp\u00e9cifique \u2014 allant d&#039;un fini brillant \u00e0 un fini mat uniforme, en passant par une texture peau d&#039;orange bien d\u00e9finie \u2014 plut\u00f4t que d&#039;accepter le r\u00e9sultat obtenu avec le mastic non modifi\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"500\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2024\/04\/Applications-of-Three-Roller-Coating-Machine.webp\" alt=\"Applications de la machine de rev\u00eatement \u00e0 trois rouleaux\" class=\"wp-image-2658\" style=\"width:922px;height:auto\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2024\/04\/Applications-of-Three-Roller-Coating-Machine.webp 960w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2024\/04\/Applications-of-Three-Roller-Coating-Machine-300x156.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2024\/04\/Applications-of-Three-Roller-Coating-Machine-768x400.webp 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">Applications de la machine de rev\u00eatement \u00e0 trois rouleaux<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ing\u00e9nierie modulaire des particules<\/h3>\n\n\n\n<p>L&#039;avenir du carbonate de calcium dans les composites polym\u00e8res repose sur cette approche\u00a0: la classification des diff\u00e9rentes structures particulaires, leur corr\u00e9lation avec des performances sp\u00e9cifiques et la red\u00e9finition de l&#039;architecture particulaire pour des applications cibl\u00e9es. Plut\u00f4t que de choisir une charge standard et d&#039;esp\u00e9rer un r\u00e9sultat satisfaisant, les fabricants peuvent collaborer avec Epic Powder pour concevoir un carbonate de calcium \u00e0 la structure particulaire d\u00e9finie, assembl\u00e9 avec pr\u00e9cision pour obtenir la finition de surface souhait\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0693e3\" class=\"has-inline-color\">7. Principaux enseignements pour les formulateurs et les d\u00e9veloppeurs de produits<\/mark><\/h2>\n\n\n\n<p>\u2022 Le brillant de surface du PETG est d\u00e9termin\u00e9 par la microstructure lors de la solidification, et non par les rev\u00eatements appliqu\u00e9s apr\u00e8s traitement.<br>\u2022 Les charges de carbonate de calcium peuvent r\u00e9duire de mani\u00e8re fiable la brillance de surface et cr\u00e9er une texture peau d&#039;orange lorsque les propri\u00e9t\u00e9s des particules sont correctement con\u00e7ues.<br>\u2022 Le GCC est g\u00e9n\u00e9ralement pr\u00e9f\u00e9r\u00e9 au PCC dans les applications PETG\/impression 3D en raison de son impact moindre sur la viscosit\u00e9 \u00e0 l&#039;\u00e9tat fondu et de sa grande facilit\u00e9 de mise en \u0153uvre.<br>La taille, la morphologie et la chimie de surface des particules doivent \u00eatre parfaitement ma\u00eetris\u00e9es\u00a0; modifier l\u2019un de ces param\u00e8tres influence le r\u00e9sultat.<br>\u2022 Le classement pneumatique est une technologie essentielle pour produire du carbonate de calcium avec la distribution granulom\u00e9trique ultrafine et homog\u00e8ne requise pour le contr\u00f4le de la finition de surface.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter 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=\"Syst\u00e8me de production de broyeur \u00e0 boulets et de classificateur avec modification de la surface de la poudre, broyeur \u00e0 trois cylindres\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/gCWQvRVGjyY?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<h2 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#cf2e2e\" class=\"has-inline-color\">Machines \u00e0 poudre Epic<\/mark><\/h2>\n\n\n\n<p><strong>Machines \u00e0 poudre Epic<\/strong>&nbsp;Notre entreprise poss\u00e8de plus de 20 ans d&#039;exp\u00e9rience dans le traitement des poudres ultrafines de min\u00e9raux non m\u00e9talliques. Nous concevons et fabriquons des broyeurs \u00e0 billes, des classificateurs \u00e0 air et des syst\u00e8mes de modification de surface utilis\u00e9s par les compoundeurs de polym\u00e8res, les producteurs de filaments et les fabricants de produits chimiques de sp\u00e9cialit\u00e9 dans le monde entier.<\/p>\n\n\n\n<p>Nos solutions de traitement du carbonate de calcium \u2014 de la classification ultra-fine par air au rev\u00eatement de surface \u00e0 l&#039;acide st\u00e9arique \u2014 offrent aux clients la capacit\u00e9 d&#039;ing\u00e9nierie des particules pr\u00e9cise n\u00e9cessaire pour obtenir des finitions de surface d\u00e9finies dans le PETG, le PVC et d&#039;autres syst\u00e8mes polym\u00e8res.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#00304d\" class=\"has-inline-color\">Contactez Epic Powder Machinery pour obtenir des conseils techniques d&#039;experts sur les charges de carbonate de calcium, l&#039;ing\u00e9nierie de la taille des particules et la modification de surface des composites polym\u00e8res.<\/mark><\/strong><\/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=\"602\" height=\"602\" src=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Mr-Wang.webp\" alt=\"Monsieur Wang\" class=\"wp-image-3612\" style=\"width:150px;height:150px\" srcset=\"https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Mr-Wang.webp 602w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Mr-Wang-300x300.webp 300w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Mr-Wang-150x150.webp 150w, https:\/\/www.nonmetallic-ore.com\/wp-content\/uploads\/2025\/11\/Mr-Wang-12x12.webp 12w\" sizes=\"(max-width: 602px) 100vw, 602px\" \/><\/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=\"has-medium-font-size\">Merci de votre lecture. J&#039;esp\u00e8re que cet article vous sera utile. N&#039;h\u00e9sitez pas \u00e0 laisser un commentaire ci-dessous. Vous pouvez \u00e9galement contacter le service client en ligne d&#039;EPIC Powder. <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">Zelda<\/mark><\/strong> pour toute autre question.<\/p>\n<cite>                                                                                                                                         \u2014 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">Jason Wang<\/mark><\/strong>, <em>Ing\u00e9nieur<\/em><\/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\/3773#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\/3773#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\" 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\" 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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><span class=\"wpcf7-form-control-wrap 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=\"M415 24c-53 0-103 42-127 65-24-23-74-65-127-65C70 24 16 77 16 166c0 72 67 133 69 135l187 181c9 8 23 8 32 0l187-180c2-3 69-64 69-136 0-89-54-142-145-142z\"\/><\/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 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name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>De plus en plus d&#039;utilisateurs d&#039;imprimantes 3D se posent la m\u00eame question\u00a0: est-il possible d&#039;obtenir une texture mate, semblable \u00e0 une peau d&#039;orange, sur des impressions en PETG\u00a0? La poudre de carbonate de calcium peut-elle nous y aider\u00a0? La r\u00e9ponse est oui, mais les principes scientifiques sous-jacents sont plus complexes qu&#039;il n&#039;y para\u00eet. Cet article explore comment la brillance de surface du PETG (un polym\u00e8re\u2026)<\/p>","protected":false},"author":1,"featured_media":3774,"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":"disabled","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 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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 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