{"id":14136,"date":"2025-03-20T03:59:46","date_gmt":"2025-03-20T03:59:46","guid":{"rendered":"https:\/\/www.ball-mill-classifiers.com\/?p=14136"},"modified":"2025-03-20T03:59:48","modified_gmt":"2025-03-20T03:59:48","slug":"the-application-of-metallic-pigments-and-pearlescent-pigments-in-powder-coatings","status":"publish","type":"post","link":"https:\/\/www.ball-mill-classifiers.com\/fr\/the-application-of-metallic-pigments-and-pearlescent-pigments-in-powder-coatings\/","title":{"rendered":"L&#039;application de pigments m\u00e9talliques et de pigments nacr\u00e9s dans les rev\u00eatements en poudre"},"content":{"rendered":"<p>Avec l\u2019am\u00e9lioration des exigences esth\u00e9tiques, la recherche de rev\u00eatements hautement esth\u00e9tiques est devenue une tendance.<br>Les rev\u00eatements en poudre aux effets m\u00e9talliques ou nacr\u00e9s pr\u00e9sentent des effets d\u00e9coratifs luxueux, allant du lustre m\u00e9tallique cristallin \u00e0 la brillance nacr\u00e9e satin\u00e9e.<br>Les pigments m\u00e9talliques et nacr\u00e9s sont donc largement utilis\u00e9s dans la pulv\u00e9risation de meubles, d\u2019\u00e9quipements sportifs et d\u2019automobiles.<br>Ces poudres d\u00e9coratives diff\u00e8rent des poudres fonctionnelles comme l\u2019\u00e9poxy pur, le polyester et l\u2019acrylique.<br>Bien qu&#039;ils offrent une certaine protection au substrat, leur r\u00e9sistance aux intemp\u00e9ries, \u00e0 la corrosion et \u00e0 la chaleur ne sont pas aussi \u00e9lev\u00e9es que celles des poudres fonctionnelles sp\u00e9cialis\u00e9es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Types et caract\u00e9ristiques des pigments m\u00e9talliques et nacr\u00e9s<\/h2>\n\n\n\n<p>Les pigments m\u00e9talliques et nacr\u00e9s utilis\u00e9s dans les rev\u00eatements en poudre sont g\u00e9n\u00e9ralement des particules en forme de flocons.<br>En g\u00e9n\u00e9ral, les produits commerciaux ont une taille de particules D50 comprise entre 3 et 75 \u00b5m.<br>Il s\u2019agit notamment de la poudre d\u2019aluminium (commun\u00e9ment appel\u00e9e poudre d\u2019argent), de la poudre de cuivre (poudre d\u2019or), de la poudre de zinc, de la poudre de nickel, de la poudre d\u2019acier inoxydable,<br>et poudre de paillettes de mica inorganique recouverte d&#039;oxyde (commun\u00e9ment appel\u00e9e poudre nacr\u00e9e). La poudre d&#039;aluminium est la plus utilis\u00e9e dans les rev\u00eatements en poudre, suivie de la poudre de cuivre (or), de la poudre nacr\u00e9e, de la poudre de zinc et de la poudre d&#039;acier inoxydable, souvent utilis\u00e9es dans les rev\u00eatements anticorrosion.<br>Ces pigments jouent des r\u00f4les diff\u00e9rents dans les rev\u00eatements en poudre en raison de leurs caract\u00e9ristiques distinctes (voir tableau 1)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Application de pigments en poudre m\u00e9talliques et de pigments nacr\u00e9s<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Pigments d&#039;aluminium<\/h3>\n\n\n\n<p>Le pigment d&#039;aluminium est le pigment \u00e0 effet flocon le plus couramment utilis\u00e9 dans les applications industrielles.<br>Il est divis\u00e9 en types flottants et non flottants, la poudre d&#039;aluminium non flottante occupant plus de 80% de parts de march\u00e9.<br>La poudre d&#039;aluminium non flottante comprend des vari\u00e9t\u00e9s avec des tailles de particules plus grandes et un \u00e9clat cristallin, ainsi que des tailles de particules plus fines avec un \u00e9clat satin\u00e9.<br>Ces poudres ont de bonnes propri\u00e9t\u00e9s de mouillage des pigments gr\u00e2ce \u00e0 leur surface de film de couleur organique et se r\u00e9partissent uniform\u00e9ment dans les rev\u00eatements en poudre.<br>La poudre d&#039;aluminium flottante se dispose principalement sur la surface du rev\u00eatement, montrant un effet brillant semblable \u00e0 celui du chrome.<br>Il offre une excellente opacit\u00e9 et la poudre d&#039;aluminium m\u00e9tallique pr\u00e9sente les caract\u00e9ristiques suivantes sur les rev\u00eatements en poudre ou les surfaces de film.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"770\" height=\"382\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments.webp\" alt=\"\" class=\"wp-image-14137\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments.webp 770w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments-300x149.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments-768x381.webp 768w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments-18x9.webp 18w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/common-use-of-metallic-and-pearlescent-pigments-600x298.webp 600w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Poudre de cuivre et d&#039;or<\/h3>\n\n\n\n<p>La poudre de cuivre ordinaire (or) est un pigment en flocons flottants fabriqu\u00e9 \u00e0 partir d&#039;un rapport sp\u00e9cifique d&#039;alliage de cuivre, de zinc et d&#039;aluminium.<br>Le m\u00e9lange subit <a href=\"https:\/\/www.ball-mill-classifiers.com\/fr\/produit\/ball-mill\/\">broyage \u00e0 boulets<\/a> et la classification pour obtenir le produit final.<br>De plus, les variations de teneur en cuivre entra\u00eenent des diff\u00e9rences de teinte distinctes.<\/p>\n\n\n\n<p>Les particules de poudre d&#039;or cuivr\u00e9 plus grossi\u00e8res dans des tons comme le cyan, le rouge et le bronze pr\u00e9sentent des effets m\u00e9talliques plus forts mais une couverture plus faible.<br>Les formules de peinture n\u00e9cessitent des quantit\u00e9s plus \u00e9lev\u00e9es de poudre de cuivre et d&#039;or \u00e0 grosses particules.<br>En revanche, les particules iner produisent des effets m\u00e9talliques plus faibles, des teintes plus douces et des capacit\u00e9s de couverture am\u00e9lior\u00e9es.<br>Les concepteurs de rev\u00eatement en poudre peuvent s\u00e9lectionner des vari\u00e9t\u00e9s de poudre de cuivre et d&#039;or par taille de particule et teinte en fonction des besoins du client.<\/p>\n\n\n\n<p>Les rev\u00eatements de surface en mat\u00e9riaux organiques r\u00e9duisent la densit\u00e9 de la poudre de cuivre et d&#039;or tout en augmentant la tension superficielle et la r\u00e9sistance \u00e0 la chaleur.<br>Diff\u00e9rents types de poudre de cuivre et d&#039;or peuvent se d\u00e9colorer sous des climats sp\u00e9cifiques ou des expositions chimiques, r\u00e9duisant ainsi la brillance du rev\u00eatement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"660\" height=\"425\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments.webp\" alt=\"Metallic  Pigments\" class=\"wp-image-14138\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments.webp 660w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-300x193.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-18x12.webp 18w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-600x386.webp 600w\" sizes=\"(max-width: 660px) 100vw, 660px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Pigments nacr\u00e9s<\/h3>\n\n\n\n<p>Les pigments nacr\u00e9s pr\u00e9sentent un \u00e9clat nacr\u00e9 et sont constitu\u00e9s de substrats de mica enrob\u00e9s de dioxyde de titane. La r\u00e9flexion et la transmission multicouches de la lumi\u00e8re \u00e0 travers les particules enrob\u00e9es cr\u00e9ent ainsi des effets optiques nacr\u00e9s.<\/p>\n\n\n\n<p>Diff\u00e9rents rev\u00eatements d\u2019oxyde m\u00e9tallique g\u00e9n\u00e8rent des effets de lumi\u00e8re interf\u00e9rentielle distincts.<br>Ces variations produisent de larges changements de couleurs nacr\u00e9es et m\u00eame des ph\u00e9nom\u00e8nes de \u00ab voyage de couleur \u00bb.<\/p>\n\n\n\n<p>Les pigments nacr\u00e9s modernes se r\u00e9partissent en blanc argent\u00e9, iris\u00e9 et color\u00e9. Les traitements chimiques de surface et les modifications de rev\u00eatement assurent leur compatibilit\u00e9 avec tous les syst\u00e8mes de r\u00e9sines naturelles et synth\u00e9tiques. Ils conviennent aux rev\u00eatements en poudre thermodurcissables et thermoplastiques.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"813\" height=\"540\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1.webp\" alt=\"metallic pigments\" class=\"wp-image-14140\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1.webp 813w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1-300x199.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1-768x510.webp 768w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1-18x12.webp 18w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/03\/metallic-pigments-1-600x399.webp 600w\" sizes=\"(max-width: 813px) 100vw, 813px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Cas d&#039;application<\/h2>\n\n\n\n<p>Industrie automobile : Un constructeur automobile a d\u00e9velopp\u00e9 la peinture m\u00e9tallis\u00e9e \u00ab Starlight Silver \u00bb en utilisant un proc\u00e9d\u00e9 de pulv\u00e9risation en trois couches.<br>La couche sup\u00e9rieure contient de la poudre d&#039;aluminium 20%, la couche interm\u00e9diaire contient du pigment nacr\u00e9 mica 15% et la couche inf\u00e9rieure est de la r\u00e9sine \u00e9poxy 85%.<br>Cela donne donc une valeur de test de r\u00e9flectivit\u00e9 BOSCH de 92%.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Les pigments \u00e0 effets offrent des effets visuels riches pour les rev\u00eatements en poudre, mais leurs performances sont fortement influenc\u00e9es par le syst\u00e8me de rev\u00eatement.<br>L\u2019application de pigments \u00e0 effets dans les rev\u00eatements en poudre n\u2019est pas aussi mature que dans les rev\u00eatements liquides.<br>Gr\u00e2ce aux am\u00e9liorations continues apport\u00e9es \u00e0 la technologie de rev\u00eatement en poudre, les principaux d\u00e9fis techniques des pigments \u00e0 effets seront relev\u00e9s.<br>L\u2019utilisation g\u00e9n\u00e9ralis\u00e9e de pigments \u00e0 effets augmentera consid\u00e9rablement la valeur ajout\u00e9e et l\u2019apparence des rev\u00eatements en poudre, am\u00e9liorant ainsi la comp\u00e9titivit\u00e9 des produits.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1.webp\" alt=\"Ball mill for calcium carbonate\" class=\"wp-image-14129\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1.webp 800w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1-300x225.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1-768x576.webp 768w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1-16x12.webp 16w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2024\/11\/Ball-mill-for-calcium-carbonate-1-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Broyeur \u00e0 boulets pour carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Coordonn\u00e9es d&#039;EPIC<\/h2>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f14067-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"14067\">\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\/14136#wpcf7-f14067-o1\" method=\"post\" 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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>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Avec l&#039;am\u00e9lioration des exigences esth\u00e9tiques, la recherche de rev\u00eatements hautement esth\u00e9tiques est devenue une tendance. Les rev\u00eatements en poudre \u00e0 effets m\u00e9talliques ou nacr\u00e9s pr\u00e9sentent des effets d\u00e9coratifs luxueux, allant du lustre m\u00e9tallique cristallin [\u2026]<\/p>","protected":false},"author":1,"featured_media":14140,"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":"","background-image":"","background-repeat":"repeat","background-position":"center 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