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CN101914190B 一种改性纳米二氧化硅单体分散液的制备方法 失效 - 权利终止 转让

一种改性纳米二氧化硅单体分散液的制备方法
摘要：
本发明公开了一种改性纳米二氧化硅单体分散液的制备方法，包括：(1)将硅烷偶联剂加入到纳米二氧化硅乙醇分散液中，搅拌状态下在25～40℃条件下偶联改性6～24小时，得到相应的改性纳米二氧化硅乙醇分散液；(2)向上述改性纳米二氧化硅乙醇分散液中加入单体，混合均匀，在温度低于60℃，绝对气压低于0.010MPa，并始终保持单体存在条件下去除其中的乙醇，得到改性纳米二氧化硅单体分散液，单体分散液中改性纳米二氧化硅的质量百分比含量为10～30％。本发明的制备方法工艺流程简单，过程条件温和，生产效率高，适合于工业化生产，制得的改性纳米二氧化硅单体分散液可应用于高分散性复合材料和特定形态结构复合微球的制备。
摘要（英）：

The invention discloses a preparation method of modified nano-silica monomer dispersion liquid, comprising the following steps of: firstly, adding silane coupling agent into nano-silica alcohol dispersion liquid, and obtaining corresponding modified nano-silica alcohol dispersion liquid by carrying out coupling modification for 6-24h in a stirring state at the temperature of 25-40 DEG C; secondly, adding a monomer into the modified nano-silica alcohol dispersion liquid, uniformly mixing, and removing alcohol under the condition of the temperature lower than 600 DEG C and absolute pressure lower than 0.10MPa in the presence of the monomer to obtain the modified nano-silica monomer dispersion liquid, wherein the mass proportion of modified nano-silica in the monomer dispersion liquid is 10-30 percent. The preparation method has the advantages of simple technological process, mild process conditions and high production efficiency and is suitable for industrial production. The prepared modified nano-silica monomer dispersion liquid can be applied to preparation of high dispersity composite materials and composite microspheres with a special morphological structure.

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