聚有机硅丙烯酸酯/蒙脱土纳米复合乳液的流变性  

Studies on rheological property of poly(silicone-acrylate)/montmorillonite nanocomposite emulsion

作　　者：冯小平[1] 丁小东[2] 刘小华[1] 钟安永[1] 陈德本[1] 

机构地区：[1]四川大学化学学院,四川成都610064 [2]四川抗菌素工业研究所,四川成都610051

出　　处：《化学研究与应用》2005年第2期212-215,共4页Chemical Research and Application

摘　　要：本文采用原位插层聚合的方法,单体插层插入有机蒙脱土片层中,然后引发原位聚合,制备了聚有机硅丙烯酸酯与有机蒙脱土的复合乳液。并用旋转粘度计对其流变性进行了研究。发现乳液的表观粘度( ηa)、稠度系数(K)、零剪切粘度( ηo)、粘流活化能(Ea)随有机硅含量增加而增加,而流动指数( )则减小;ηa、K、ηo、Ea 随有机蒙脱土含量的增加先增大后减小,当蒙脱土含量为1%时达最大值。Poly (silicone-acrylate)/montmorillonite nanocomposite emulsions were prepared by in stu intercalative polymerization.The viscosity tests were carried out by using a Chinese NXS-11 rotational viscometer.The results showed that apparent viscosity(η_a),consistency factor(K),zero shear viscosity(η_0),and viscous flow activation energy(E_a)of emulsion were increased with increasing the A-151 content,but the emulsion flow index(n)was decreased.The results showed that η_a,η_0,K,and E_a were increased with increasing the content of OMMT up to 1% followed by decreasing.

关 键 词：蒙脱土 有机硅 丙烯酸酯 乳液聚合 流变性 纳米复合乳液 

分 类 号：O632.52[理学—高分子化学]