{"id":4246,"date":"2025-08-08T15:04:30","date_gmt":"2025-08-08T07:04:30","guid":{"rendered":"https:\/\/www.superfinemill.com\/?p=4246"},"modified":"2025-08-14T11:35:37","modified_gmt":"2025-08-14T03:35:37","slug":"surface-modification-of-silica-micro-powder-techniques-and-applications","status":"publish","type":"post","link":"https:\/\/www.superfinemill.com\/id\/surface-modification-of-silica-micro-powder-techniques-and-applications\/","title":{"rendered":"Modifikasi Permukaan Bubuk Mikro Silika: Teknik dan Aplikasi"},"content":{"rendered":"<p><a href=\"https:\/\/www.superfinemill.com\/id\/products\/\">Silika<\/a> bubuk mikro, sebagai pengisi anorganik yang umum, memiliki sifat-sifat yang sangat baik, termasuk:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201cTiga Keunggulan\u201d (Isolasi tinggi, konduktivitas termal tinggi, stabilitas termal tinggi);<\/li>\n\n\n\n<li>\u201cTiga Rendah\u201d (Koefisien ekspansi termal rendah, konstanta dielektrik rendah, biaya bahan baku rendah);<\/li>\n\n\n\n<li>\u201cDua Resistensi\u201d (Tahan asam dan alkali, tahan aus). Fitur-fitur ini menjadikan silika <a href=\"https:\/\/www.superfinemill.com\/id\/dry-grinding\/ball-mill-and-air-classifier-production-system\/\">bubuk mikro<\/a> digunakan secara luas dan sangat dihormati.<\/li>\n<\/ul>\n\n\n\n<p>Selama <a href=\"https:\/\/www.superfinemill.com\/id\/dry-grinding\/fluidized-bed-opposed-air-jet-mill\/\">penggilingan ultra-halus<\/a> Proses ini menyebabkan luas permukaan spesifik serbuk mikro silika terus meningkat. Akibatnya, sejumlah besar gugus hidroksil (-OH) terekspos di permukaan, sehingga meningkatkan polaritasnya. Hal ini menghasilkan energi permukaan yang lebih tinggi, dan karena adanya gaya elektrostatik, partikel cenderung menggumpal dan sulit terdispersi. Selain itu, keberadaan gugus hidroksil di permukaan juga membuatnya bersifat hidrofilik, yang menghambat dispersinya dalam media polimer organik. Oleh karena itu, modifikasi permukaan serbuk mikro silika diperlukan.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"549\" src=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/silica-micropowder.webp\" alt=\"silica micropowder\" class=\"wp-image-4248\" srcset=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/silica-micropowder.webp 800w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/silica-micropowder-300x206.webp 300w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/silica-micropowder-768x527.webp 768w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/silica-micropowder-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/www.superfinemill.com\/id\/powder-coating-surface-modification\/\">Modifikasi Pelapisan<\/a><\/h2>\n\n\n\n<p>Modifikasi pelapisan terutama melibatkan pemanfaatan gugus fungsi pada permukaan serbuk mikro silika dan material polimer tinggi untuk melapisi serbuk. Setelah proses modifikasi pelapisan, lapisan tipis polimer organik terbentuk pada permukaan serbuk mikro silika. &quot;Lapisan&quot; ini memodifikasi permukaan serbuk mikro silika.<\/p>\n\n\n\n<p>Terdapat dua metode utama pelapisan permukaan: modifikasi dingin dan modifikasi panas. Untuk memastikan modifikasi yang efektif, bubuk mikro silika harus terlebih dahulu menjalani proses pembersihan dan pengeringan sebelum proses pelapisan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Modifikasi Dingin<\/h3>\n\n\n\n<p>Proses ini dilakukan pada suhu ruangan. Pertama, resin epoksi dicampur secara menyeluruh dengan bubuk mikro silika. Kemudian, pelarut organik yang diperlukan untuk modifikasi ditambahkan. Selama proses pencampuran, pelarut menguap secara bertahap hingga larut sempurna. Produk yang dimodifikasi kemudian diperoleh melalui penyaringan dan pengeringan. Modifikasi dingin membutuhkan pelarut organik dalam jumlah besar, sehingga sulit untuk ditingkatkan skalanya untuk produksi industri. Biayanya tinggi, dan efisiensi modifikasinya rendah.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"479\" src=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/Mechanism-diagram-of-silane-coupling-agent-modified-silicon-micropowder.webp\" alt=\"Mechanism diagram of silane coupling agent modified silicon micropowder\" class=\"wp-image-4249\" srcset=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/Mechanism-diagram-of-silane-coupling-agent-modified-silicon-micropowder.webp 800w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/Mechanism-diagram-of-silane-coupling-agent-modified-silicon-micropowder-300x180.webp 300w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/Mechanism-diagram-of-silane-coupling-agent-modified-silicon-micropowder-768x460.webp 768w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/08\/Mechanism-diagram-of-silane-coupling-agent-modified-silicon-micropowder-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Modifikasi Panas<\/h3>\n\n\n\n<p>Dalam metode ini, mikroserbuk silika diolah terlebih dahulu dengan memanaskannya hingga 120-140\u00b0C, kemudian dicampur dengan resin. Resin biasanya mengandung 2%-5% dari massa mikroserbuk silika. Panas melunakkan resin, yang kemudian melapisi permukaan mikroserbuk silika. Seiring penurunan suhu, resin menjadi lengket dan melekat pada permukaan. Zat pengawet (seperti urotropin) dan kalsium stearat ditambahkan, dan campuran diaduk secara menyeluruh untuk mencegah penggumpalan mikroserbuk silika. Setelah pendinginan dan penyaringan, mikroserbuk silika termodifikasi diperoleh. Metode ini memberikan efek pelapisan yang lebih baik dan cocok untuk produksi massal, tetapi prosesnya lebih kompleks dan sulit dikontrol.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modifikasi Kering<\/h2>\n\n\n\n<p>Dibandingkan dengan modifikasi pelapisan, modifikasi kering lebih umum digunakan dalam modifikasi permukaan serbuk. Serbuk yang akan dimodifikasi dimasukkan ke dalam blender berkecepatan tinggi. Tergantung pada jenis serbuknya, blender dipanaskan pada suhu yang berbeda. Modifier yang telah dicampur sebelumnya kemudian ditambahkan ke dalam blender untuk menyelesaikan modifikasi permukaan.<\/p>\n\n\n\n<p>Modifikasi kering menawarkan proses yang sederhana dan biaya produksi yang rendah. Saat ini, metode ini merupakan metode utama untuk modifikasi permukaan mikroserbuk silika di Tiongkok dan cocok untuk mikroserbuk silika berukuran mikron.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"523\" src=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/07\/powder-coating-machine-2.webp\" alt=\"powder coating machine\" class=\"wp-image-4201\" srcset=\"https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/07\/powder-coating-machine-2.webp 800w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/07\/powder-coating-machine-2-300x196.webp 300w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/07\/powder-coating-machine-2-768x502.webp 768w, https:\/\/www.superfinemill.com\/wp-content\/uploads\/2025\/07\/powder-coating-machine-2-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Modifikasi Basah<\/h2>\n\n\n\n<p>Modifikasi basah melibatkan pembasahan permukaan serbuk mikro silika dalam fase cair untuk mengurangi energi ikatan permukaan. Pengubah permukaan dan aditif kemudian ditambahkan, dan campuran diaduk serta didispersikan pada suhu tertentu untuk mencapai modifikasi permukaan. Modifikasi basah memungkinkan serbuk mikro silika terdispersi lebih mudah dan menyatu lebih sempurna dengan pengubah. Modifikasi ini lebih seragam, tetapi prosesnya kompleks dan intensif energi, sehingga lebih cocok untuk serbuk mikro silika ultra-halus dengan ukuran partikel kurang dari 5\u03bcm. Lebih lanjut, kelarutan pengubah dalam air harus dipertimbangkan, karena hanya pengubah yang larut dalam air yang akan terdispersi lebih baik dan berinteraksi secara efektif dengan gugus Si\u2014OH pada permukaan silika.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Proses Modifikasi Komposit<\/h2>\n\n\n\n<p>Modifikasi komposit mengacu pada proses penambahan pengubah selama proses penggilingan halus, yang menggabungkan penggilingan bubuk dan modifikasi dalam satu langkah. Proses modifikasi komposit relatif sederhana, mudah dioperasikan, dan dapat meningkatkan efisiensi penggilingan dan modifikasi karena keberadaan pengubah meningkatkan kemampuan penggilingan media penggiling.<\/p>\n\n\n\n<p>Saat memilih pengubah, struktur, properti, mekanisme modifikasi, dan properti bahan dasar yang diisi semuanya harus dipertimbangkan.<\/p>\n\n\n\n<p>Pengubah yang paling umum digunakan dalam modifikasi permukaan serbuk mikro silika adalah agen penggandeng silana. Agen penggandeng silana merupakan senyawa organosilikon berbobot molekul rendah yang mengandung dua atau lebih gugus kimia yang berbeda. Struktur molekulnya mencakup gugus fungsi (seperti gugus amino, vinil, atau epoksi) yang berinteraksi dengan polimer organik, serta gugus alkoksi yang dapat menghidrolisis dan berinteraksi dengan permukaan serbuk mikro silika. Hal ini memungkinkan serbuk mikro silika berikatan erat dengan polimer organik.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/www.superfinemill.com\/id\/contact\/\">Bubuk Epik<\/a><\/h2>\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<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Mesin Penggiling Tiga Rol Untuk Modifikasi Permukaan Bubuk Kalsium Karbonat\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/cNzgynoeNI8?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><\/div>\n<\/div><\/figure>\n\n\n\n<p>Peralatan penggilingan dan pelapisan canggih Epic Powder berperan penting dalam pemrosesan dan modifikasi permukaan bubuk mikro silika. Dengan memanfaatkan teknologi penggilingan efisiensi tinggi seperti ball mill dan pengklasifikasi udara, Epic Powder memastikan bubuk mikro silika diproses secara presisi untuk mencapai ukuran partikel dan karakteristik permukaan yang diinginkan. Integrasi modifikasi permukaan dengan penggilingan halus semakin meningkatkan kinerja dan dispersibilitas material dalam berbagai aplikasi. Seiring dengan terus meningkatnya permintaan akan material berkinerja tinggi, peralatan andal dan solusi khusus Epic Powder akan sangat penting dalam mengoptimalkan produksi bubuk mikro silika untuk berbagai industri.<\/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=\"\/id\/wp-json\/wp\/v2\/posts\/4246#wpcf7-f8-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/id\/wp-json\/wp\/v2\/posts\/4246#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\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" 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[\u2026]<\/p>","protected":false},"author":1,"featured_media":4250,"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 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