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    • 9. 发明申请
    • METHOD OF MAKING A SILICA/ELASTOMER COMPOSITE
    • 制备二氧化硅/弹性体复合材料的方法
    • US20110136970A1
    • 2011-06-09
    • US12629983
    • 2009-12-03
    • Georges KosterWolfgang Lauer
    • Georges KosterWolfgang Lauer
    • C08L25/08
    • C08K3/36C08K3/04C08L9/00C08L9/06C08L21/00C08L2666/08
    • The present invention is further directed to a method of producing a particulate composite of silica and elastomer comprising the steps of dispersing a diene based elastomer in a hydrophobic liquid to form an elastomer dispersion; mixing the elastomer dispersion with an aqueous solution of an alkali metal silicate to form a mixture; adding a precipitating agent to the mixture to precipitate a porous silica onto the dispersed elastomer to form a particulate composite of silica and elastomer comprising a porous silica shell at least partially surrounding a core of diene based elastomer; and optionally adding a separating agent to remove the hydrophobic liquid from the particulate composite.
    • 本发明还涉及一种生产二氧化硅和弹性体的颗粒复合材料的方法,包括以下步骤:将二烯基弹性体分散在疏水性液体中以形成弹性体分散体; 将弹性体分散体与碱金属硅酸盐的水溶液混合以形成混合物; 向混合物中加入沉淀剂以将多孔二氧化硅沉淀到分散的弹性体上以形成二氧化硅和弹性体的颗粒复合物,其包括至少部分地围绕二烯基弹性体的芯的多孔二氧化硅壳; 并且任选地加入分离剂以从颗粒复合物中除去疏水性液体。