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注:如果您不確定需要哪種產品,請聯系我們,我們將為您提供專業的知識解答!

廣州市益瑞新材料有限公司

手機:135-8055-4020(王小姐)

電話:020-82013291

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地址:廣州市黃埔區光譜中路23號A2棟708

沉淀法白炭黑的獨特性

詳細說明

  沉淀法白炭黑的獨特性主要表現在沉淀法白炭黑具有很好的電絕緣性,多孔比表面積大,分散性好。沉淀法白炭黑的表面有極強的化學吸附性,這與其表面羥基的存在有關,沉淀法白炭黑的表面羥基分子以氫鍵的形式結合而形成多分子吸附層。而且沉淀法白炭黑表面羥基密度的增加,被吸附的水分量也增加,吸附量與沉淀法白炭黑的比表面積成正比。沉淀法白炭黑表面羥基還可與許多小分子物質發生吸附作用。

 

  因此,沉淀法白炭黑作為橡膠補強添充劑應用時,其表面羥基極易對含不成對電子的硫化促進劑發生強烈的化學吸附,從而減慢了促進劑的分解,沉淀法白炭黑會對橡膠的硫化作用起遲延阻凝作用。為了防止這種現象的發生,就需要在橡膠混煉時,配一定量的對沉淀法白炭黑羥基可優先吸附的物質,如甘油等醇類或三乙醇胺類活化劑。

CHINESE快递员坚硬粗大网址
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