有机硅流平剂的制备及性能表征  

Preparation and characterization of silicone levelling agent

作　　者：邓浩强[1] 戴如勇[1] 沈汝梁[1] 吕俊佳[1] 葛建芳[1] 

机构地区：[1]仲恺农业工程学院化学化工学院,广东广州510225

出　　处：《仲恺农业工程学院学报》2011年第4期46-49,共4页Journal of Zhongkai University of Agriculture and Engineering

基　　金：仲恺农业工程学院大学生创新基金(201033)资助项目

摘　　要：以八甲基环四硅氧烷(Octamethylcyclotetrasiloxane,D4)为反应物,自制酸性白土为催化剂,六甲基二硅氧烷(Hexamethyldisiloxane,MM)为封端剂,制备了有机硅流平剂,并对反应时间、反应温度、物料质量比等因素对产物流平性的影响进行了研究.结果表明,当m(D4)∶m(MM)∶m(酸性白土)=100∶0.8∶1、反应温度70℃、反应时间3 h时,产物的流平性能最佳.Silicone leveling agent had been synthesized using octamethylcyclotetrasiloxane （D4） as reactant, emathlite as catalyst and hexamethyldisiloxane （MM） as end-capping agent. The influences of the mass ratio of D4, MM and emathlite, reaction time and temperature on the levelling property of the asprepared products were investigated. The results showed that, at the condition that the mass ratio of D4, MM and emathlite was 100： 0. 8：1 with the reaction temperature of 70 ℃ and the reaction time of about 3 h, the end-products possessed the optimum leveling property.

关 键 词：八甲基环四硅氧烷 六甲基二硅氧烷 酸性白土 流平性 

分 类 号：TQ630.49[化学工程—精细化工]