{"id":4073,"date":"2025-04-10T13:51:43","date_gmt":"2025-04-10T05:51:43","guid":{"rendered":"https:\/\/www.powdergrindingmill.com\/?p=4073"},"modified":"2025-04-10T13:53:42","modified_gmt":"2025-04-10T05:53:42","slug":"quartz-powder-surface-modification-technology","status":"publish","type":"post","link":"https:\/\/www.powdergrindingmill.com\/fr\/quartz-powder-surface-modification-technology\/","title":{"rendered":"Technologie de modification de surface de la poudre de quartz"},"content":{"rendered":"<p>En raison de la nature hydrophile des surfaces de la poudre de quartz, il est difficile de la compatibiliser avec les polym\u00e8res organiques. Par cons\u00e9quent, <a href=\"https:\/\/www.powdergrindingmill.com\/fr\/powder-coating-surface-modification\/three-roller-coating-machine\/\">modification de la surface de la poudre de quartz<\/a> est n\u00e9cessaire pour changer ses propri\u00e9t\u00e9s de hydrophile \u00e0 hydrophobe. Cela am\u00e9liore l'aptitude \u00e0 l'adh\u00e9rence des particules de poudre de quartz, facilitant leur dispersion dans les compos\u00e9s organiques.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"480\" height=\"447\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz.webp\" alt=\"quartz\" class=\"wp-image-4075\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz.webp 480w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz-300x279.webp 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Principe de la modification de la surface du quartz<\/h2>\n\n\n\n<p>En g\u00e9n\u00e9ral, plus les particules de poudre de quartz sont fines, plus la surface sp\u00e9cifique est grande et plus il y a de groupes hydroxyles actifs \u00e0 la surface, ce qui les rend plus r\u00e9actives. Apr\u00e8s modification, l'effet est am\u00e9lior\u00e9. Les min\u00e9raux silicat\u00e9s comme le quartz, lorsqu'ils sont broy\u00e9s m\u00e9caniquement, g\u00e9n\u00e8rent des radicaux libres ou des ions sur la surface nouvellement form\u00e9e. Dans des conditions ext\u00e9rieures, des groupes comme Si-OH, Si-O-Si, et Si-OH\u00b7\u00b7\u00b7H se forment \u00e0 la surface. Ces groupes peuvent facilement se lier avec des groupes fonctionnels \u00e9trangers, r\u00e9alisant ainsi l'objectif de modification et fournissant une base pour la modification de surface. Dans le <a href=\"https:\/\/www.powdergrindingmill.com\/fr\/powder-coating-surface-modification\/pin-mill-coating-machine\/\">modification<\/a> processus, des facteurs tels que la temp\u00e9rature, le choix et la quantit\u00e9 de modificateur, la m\u00e9thode de traitement et le processus de modification sont les principaux facteurs influen\u00e7ant l'effet de la modification.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"632\" height=\"522\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz-powder.webp\" alt=\"poudre de quartz\" class=\"wp-image-4076\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz-powder.webp 632w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/quartz-powder-300x248.webp 300w\" sizes=\"(max-width: 632px) 100vw, 632px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e9thode de modification<\/h2>\n\n\n\n<p>Il existe de nombreuses m\u00e9thodes pour la modification organique <a href=\"https:\/\/www.powdergrindingmill.com\/fr\/powder-coating-surface-modification\/turbo-mill-coating-machine\/\">la modification de surface<\/a> de la poudre de quartz, mais se fier uniquement \u00e0 l'adsorption physique \u00e0 la surface de la poudre de quartz entra\u00eene de faibles effets de modification. Elle peut facilement se d\u00e9tacher lors de processus tels que le m\u00e9lange et le lavage, et ne peut pas am\u00e9liorer significativement la performance du produit en application.<br>La modification par haute \u00e9nergie a des co\u00fbts \u00e9lev\u00e9s, est techniquement complexe, et est difficile \u00e0 r\u00e9aliser en production industrielle.<\/p>\n\n\n\n<p>La modification chimico-m\u00e9canique consiste \u00e0 broyer m\u00e9caniquement la poudre pour cr\u00e9er des sites actifs temporaires \u00e0 la surface, r\u00e9duisant ainsi l'\u00e9nergie d'activation pour la modification de surface.<\/p>\n\n\n\n<p>La modification par rev\u00eatement chimique est la m\u00e9thode la plus couramment utilis\u00e9e pour la modification de surface de la poudre de quartz. Cela inclut la modification par agent de couplage et la greffe de polym\u00e8re. Le m\u00e9canisme de liaison implique la formation de liaisons covalentes avec la surface de la poudre de quartz. Lors de la modification par agent de couplage, l'hydrolyse de l'agent de couplage g\u00e9n\u00e8re des groupes silanol.<\/p>\n\n\n\n<p>Ces groupes subissent une condensation par d\u00e9shydratation avec les groupes hydroxyles de la silice \u00e0 la surface du quartz pour former des liaisons covalentes. Cette m\u00e9thode est \u00e9conomique, offre des effets de modification \u00e9lev\u00e9s, et le produit modifi\u00e9 conserve une performance stable plus longtemps.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"766\" height=\"425\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/three-roller-mill-coating-machine.webp\" alt=\"Machine de rev\u00eatement \u00e0 trois rouleaux\" class=\"wp-image-4078\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/three-roller-mill-coating-machine.webp 766w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/three-roller-mill-coating-machine-300x166.webp 300w\" sizes=\"(max-width: 766px) 100vw, 766px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Processus de modification<\/h2>\n\n\n\n<p>En production industrielle, la modification m\u00e9canique \u00e0 sec est principalement utilis\u00e9e. Le modificateur est pulv\u00e9ris\u00e9 lors du broyage, ce qui raccourcit le processus industriel. Cette m\u00e9thode g\u00e9n\u00e8re des sites actifs temporaires et des temp\u00e9ratures \u00e9lev\u00e9es, facilitant la modification de surface. Le produit n'a pas besoin de d\u00e9shydratation ni de s\u00e9chage. Cependant, l'effet de modification est nettement moins bon compar\u00e9 aux m\u00e9thodes humides. La modification est difficile \u00e0 r\u00e9aliser uniform\u00e9ment, et des temp\u00e9ratures localis\u00e9es \u00e9lev\u00e9es peuvent endommager le modificateur.<br>Le contr\u00f4le du processus est \u00e9galement difficile. Apr\u00e8s modification \u00e0 sec, la poudre de quartz est consid\u00e9r\u00e9e comme un produit grossier dans les applications industrielles. Elle est largement utilis\u00e9e dans les industries des plastiques, des mat\u00e9riaux de construction et du caoutchouc. La modification humide implique un trempage, un chauffage, un m\u00e9lange et une d\u00e9shydratation de la poudre de quartz avec des r\u00e9actifs. Elle est plus complexe que les m\u00e9thodes \u00e0 sec mais offre de meilleurs effets de modification. Elle est g\u00e9n\u00e9ralement utilis\u00e9e dans des industries haut de gamme comme les films et les rev\u00eatements.<\/p>\n\n\n\n<p>Le processus de modification composite par m\u00e9canochimie et rev\u00eatement chimique consiste \u00e0 ajouter des modificateurs lors du broyage. Le processus combine un broyage fin et un broyage ultrafin. \u00c0 mesure que la taille des particules de sable de quartz diminue, la modification de surface se produit. Ce processus de modification composite est simple. Certains modificateurs assistent \u00e9galement le broyage, am\u00e9liorant l'efficacit\u00e9 de la fragmentation. Cependant, le contr\u00f4le de la temp\u00e9rature est difficile. Les particules sont continuellement broy\u00e9es, g\u00e9n\u00e9rant de nouvelles surfaces. Le rev\u00eatement du modificateur peut ne pas \u00eatre uniforme. De plus, les temp\u00e9ratures \u00e9lev\u00e9es g\u00e9n\u00e9r\u00e9es par l'\u00e9quipement peuvent d\u00e9composer les modificateurs ou endommager leur structure mol\u00e9culaire.<\/p>\n\n\n\n<p>Le processus de modification composite par s\u00e9chage et rev\u00eatement chimique consiste \u00e0 ajouter des modificateurs lors du processus de s\u00e9chage de la poudre humide. Il s'agit d'un processus composite o\u00f9 la d\u00e9shydratation et la modification de surface se produisent simultan\u00e9ment. Le processus de s\u00e9chage fonctionne \u00e0 une temp\u00e9rature \u00e9lev\u00e9e (au-dessus de 200\u00b0C).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modificateur<\/h2>\n\n\n\n<p>Les principaux modificateurs pour la modification de la poudre de quartz incluent les agents de couplage \u00e0 base de silane, les agents de couplage \u00e0 base d'aluminate, et les agents de couplage \u00e0 base de titanate. Les acides gras et certains tensioactifs cationiques (tels que le bromure de hexad\u00e9cyltrim\u00e9thylammonium) sont couramment utilis\u00e9s pour la modification de surface dans l'industrie. Ces modificateurs sont peu co\u00fbteux et simples \u00e0 appliquer, mais l'effet de modification est g\u00e9n\u00e9ralement moyen, produisant des produits de grade grossier. Les agents de couplage \u00e0 base de silane offrent le meilleur effet de modification de surface pour la poudre de quartz mais sont plus co\u00fbteux. Les agents de couplage \u00e0 base d'aluminate et de titanate sont moins chers et plus faciles \u00e0 appliquer, mais leur effet de modification n'est pas aussi bon que celui des agents de couplage \u00e0 base de silane.<\/p>\n\n\n\n<p>La modification de la surface de la poudre de quartz avec du polysiloxane modifi\u00e9 peut efficacement changer ses propri\u00e9t\u00e9s de surface. Cela r\u00e9duit l'utilisation de r\u00e9sine dans le traitement de la pierre de quartz artificielle. En cons\u00e9quence, le co\u00fbt de production des plaques de quartz artificiel est consid\u00e9rablement r\u00e9duit.<\/p>\n\n\n\n<p>L'utilisation du broyage m\u00e9canique par boule augmente les opportunit\u00e9s de contact et de collision entre le polysiloxane modifi\u00e9 et la poudre de quartz. Cela favorise la r\u00e9action de modification et obtient d'excellents r\u00e9sultats.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/ball-mill.webp\" alt=\"modification par broyage\" class=\"wp-image-4077\" srcset=\"https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/ball-mill.webp 750w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/ball-mill-300x300.webp 300w, https:\/\/www.powdergrindingmill.com\/wp-content\/uploads\/2025\/04\/ball-mill-150x150.webp 150w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p>En tenant compte de la valeur d'absorption d'huile, de la viscosit\u00e9, du temps de p\u00e9n\u00e9tration et des facteurs de co\u00fbt \u00e9conomique, la dose optimale de polysiloxane modifi\u00e9 est de 3,5\u2030.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Actuellement, la demande de poudre de quartz modifi\u00e9e se tourne vers des tailles de particules ultrafines. La poudre de quartz nano poss\u00e8de une structure en r\u00e9seau tridimensionnel. Cela lui conf\u00e8re des propri\u00e9t\u00e9s uniques, la rendant irrempla\u00e7able dans de nombreuses applications. Elle a un avenir de d\u00e9veloppement prometteur. Avec des mises \u00e0 jour continues des \u00e9quipements de production, les technologies de modification haut de gamme deviendront industrialis\u00e9es. Cela \u00e9largira consid\u00e9rablement son champ d'application.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Millieu de surface de poudre EPIC - Modificateur de surface de poudre \u00e0 trois rouleaux pour carbonate de calcium\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/pKNwlWKqKug?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\">poudre \u00e9pique<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.powdergrindingmill.com\/fr\/\">Poudre \u00e9pique<\/a>, plus de 20 ans d'exp\u00e9rience dans l'industrie de la poudre ultrafine. Promouvoir activement le d\u00e9veloppement futur de la poudre ultrafine, en se concentrant sur le broyage, la classification et la modification de la poudre ultrafine. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es ! Notre \u00e9quipe d'experts s'engage \u00e0 fournir des produits et services de haute qualit\u00e9 pour maximiser la valeur de votre traitement de poudre. Epic Powder\u2014Votre expert de confiance en traitement de poudre !<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f8-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"8\">\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\/4073#wpcf7-f8-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Formulaire de message\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/4073#wpcf7-f8-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"8\" \/><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-f8-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" 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class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.yanzheng{color:#fff}\n.wpcf7-response-output{color:#fff}\n.keen-form div{margin-bottom:0px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n.batton { margin-top:2%\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>En raison de la nature hydrophile des surfaces de la poudre de quartz, il est difficile de compatibiliser avec les polym\u00e8res organiques. Par cons\u00e9quent, une modification de surface de la poudre de quartz est n\u00e9cessaire pour<\/p>","protected":false},"author":1,"featured_media":4078,"comment_status":"closed","ping_status":"open","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":[1],"tags":[],"class_list":["post-4073","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v26.2) - 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