聚氯乙烯增塑糊流变行为的研究——Ⅳ.表面活性剂的影响  

Rheology of PVC Plastisol Ⅳ. Effects of Surfactants

作　　者：章悦庭[1] 虞和倬[2] 李迎朗 赵德仁[2] 

机构地区：[1]中国纺织大学 [2]华东化工学院高分子材料系 [3]上海天原化工厂

出　　处：《华东化工学院学报》1989年第3期364-370,共7页

摘　　要：本文研究了各类表面活性剂对聚氯乙烯增塑糊流变行为的影响。阴离子表面活性剂使其增塑糊有较高致流值,呈明显假塑性流动;阳离子和非离子表面活性剂使其增塑糊有低的表观粘度,接近牛顿型流动。测定了聚氯乙烯粒子表面的Zeta电位和接触角,并讨论了表面活性剂影响增塑糊流变性能的机理。The dependence of the rheological behaviour of PVC pastes on surfactants as modifier of E-PVG resins was researched by RHEOTEST-Ⅱ rheometer. Surfactants can be divided into two kinds according to the rheology of PVC pastes. One is anionic-surfactants which cause the paste to present marked pseudoplastic fluid. Another is cationic and non-ionic surfactants which cause the paste to be Newtonian fluid with low viscosity. The mechanism was studied by the measurement of Zeta potential, wetting angles etc.

关 键 词：PVC 增塑糊 流变学 表面活性剂 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]