{"id":2728,"date":"2026-01-30T07:16:18","date_gmt":"2026-01-30T07:16:18","guid":{"rendered":"https:\/\/www.seedchemever.com\/?p=2728"},"modified":"2026-01-30T07:20:37","modified_gmt":"2026-01-30T07:20:37","slug":"warum-entwickelt-das-seed-team-haftvermittler-kalziumpulver-mahlhilfen-und-dispergiermittel","status":"publish","type":"post","link":"https:\/\/www.seedchemever.com\/de\/why-is-the-seed-team-developing-coupling-agents-calcium-powder-grinding-aids-and-dispersants\/","title":{"rendered":"Warum entwickelt das SEED-Team Haftvermittler, Kalziumpulver-Mahlhilfen und Dispergiermittel?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">There&#8217;s only one reason: foreign companies operate factories in China, grinding powder from Chinese ore and selling it to Chinese consumers for thousands of yuan per ton, cash only. They can be number one in the world in this regard. Meanwhile, Chinese companies sell it for a few hundred yuan per ton, fighting tooth and nail for a mere 10 yuan profit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The core technologies involved are particle size control and surface modification. Therefore, SEED wants to contribute its modest efforts to China&#8217;s powder manufacturing industry.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" data-src=\"https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents.jpg\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"\" class=\"wp-image-2729 lazyload\"\/><noscript><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents.jpg\" alt=\"\" class=\"wp-image-2729\" srcset=\"https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents.jpg 800w, https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents-300x225.jpg 300w, https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents-768x576.jpg 768w, https:\/\/www.seedchemever.com\/wp-content\/uploads\/2026\/01\/why-is-the-seed-team-developing-coupling-agents-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/noscript><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Coupling Agents: The &#8220;Bridging Effect&#8221; Mechanism<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The core mechanism of action of SEED coupling agent is the &#8220;bridging effect&#8221; \u2014 one end of the coupling agent molecule binds to the hydroxyl groups (-OH) on the surface of calcium carbonate powder, while the other end is compatible with organic polymer matrices (e.g., plastics, rubbers, coatings). This addresses the interfacial compatibility issue caused by the hydrophilicity of calcium carbonate powder and the hydrophobicity of organic matrices, and it can be broken down into two specific steps:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chemische Bindung an der Grenzfl\u00e4che<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die hydrophilen Gruppen (z. B. -Si-OR in Silanen, -Ti-OR in Titanaten) des Haftvermittlers (\u00fcblicherweise werden Silan- und Titanattypen verwendet) gehen Hydrolyse- und Kondensationsreaktionen mit dem adsorbierten Wasser oder den Hydroxylgruppen auf der Oberfl\u00e4che des Kalziumkarbonatpulvers ein und bilden stabile chemische Bindungen (z. B. Si-O-Ca-Bindungen), die den Haftvermittler fest an der Pulveroberfl\u00e4che verankern.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Verbesserung der Matrix-Kompatibilit\u00e4t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die hydrophoben Gruppen (z. B. Alkylgruppen, Arylgruppen, unges\u00e4ttigte Doppelbindungen) des Haftvermittlers dringen in die organische Matrix ein und verbinden sich mit den Matrixmolek\u00fclen durch physikalische Verschr\u00e4nkung oder chemische Reaktionen, wodurch Grenzfl\u00e4chenl\u00fccken zwischen Kalziumkarbonatpulver und der Matrix beseitigt werden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dadurch werden die mechanischen Eigenschaften (Zugfestigkeit, Schlagz\u00e4higkeit) des Verbundmaterials verbessert, die Viskosit\u00e4t des Systems verringert, die Flie\u00dff\u00e4higkeit bei der Verarbeitung verbessert sowie die Dispersion des Kalziumkarbonatpulvers in der Matrix optimiert und die Agglomeration verringert.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das k\u00f6nnte Sie auch interessieren: <a href=\"https:\/\/www.seedchemever.com\/de\/forschungskooperationen-von-seed\/\">Die Forschungskooperationen des SEED<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mahl- und Dispergiermittel: Synergistische Wirkung<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Der Hauptwirkungsmechanismus des SEED-Mahl- und Dispergiermittels ist der synergetische Effekt von Adsorption, Schmierung und sterischer Hinderung. Durch die Verringerung der Kr\u00e4fte zwischen Pulverteilchen und zwischen Pulverteilchen und Ausr\u00fcstung, erreicht es die doppelte Wirkung von Mahlhilfe und Dispersion, die in drei spezifische Schritte unterteilt werden kann:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Adsorption zur Verringerung der Oberfl\u00e4chenenergie<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dispergiermittelmolek\u00fcle (\u00fcblicherweise werden niedermolekulare organische S\u00e4uren, Polyphosphate und hochmolekulare Polymere verwendet) adsorbieren \u00fcber polare Gruppen (Carboxylgruppen, Hydroxylgruppen, Phosphatgruppen) an der Oberfl\u00e4che von Kalziumkarbonat-Pulverteilchen und ersetzen die an der Teilchenoberfl\u00e4che adsorbierte Luft und das Wasser, wodurch die Oberfl\u00e4chenenergie der Teilchen und ihre Neigung zur Agglomeration verringert werden.<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Schmierung zur Reibungsreduzierung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die unpolaren langkettigen Gruppen des Dispergiermittels breiten sich nach au\u00dfen aus und bilden einen Schmierfilm auf der Partikeloberfl\u00e4che, der die Reibung und Adh\u00e4sion zwischen den Kalziumkarbonatpulverpartikeln sowie zwischen den Partikeln und der M\u00fchleninnenwand\/den Mahlk\u00f6rpern w\u00e4hrend des Mahlvorgangs verringert. Dadurch lassen sich die Partikel leichter feiner mahlen und der Energieverbrauch f\u00fcr das Mahlen sinkt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sterisches Hindernis zur Verhinderung von Agglomeration<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Die Molek\u00fclketten des Dispergiermittels, die an der Oberfl\u00e4che der gemahlenen feinen Kalziumkarbonat-Pulverteilchen adsorbiert sind, sto\u00dfen sich gegenseitig ab und bilden eine sterische Barriere, die verhindert, dass die feinen Teilchen aufgrund von Van-der-Waals-Kr\u00e4ften erneut agglomerieren. Dadurch wird die Dispersionsstabilit\u00e4t des Pulvers aufrechterhalten und letztlich ein Kalziumkarbonatprodukt mit feinerer Partikelgr\u00f6\u00dfe und gleichm\u00e4\u00dfigerer Partikelgr\u00f6\u00dfenverteilung erzielt.<\/p>","protected":false},"excerpt":{"rendered":"<p>There&#8217;s only one reason: foreign companies operate factories in China, grinding powder from Chinese ore and selling it to Chinese [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2729,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","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":"default","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":""}},"_themeisle_gutenberg_block_has_review":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[1],"tags":[],"class_list":["post-2728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why is the SEED team developing coupling agents, calcium powder grinding aids and dispersants - SEED<\/title>\n<meta name=\"description\" content=\"Chinese companies sell it for a few hundred yuan per ton, fighting tooth and nail for a mere 10 yuan profit. 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