共溶剂法测定树脂间相容性时分层速率的研究  

Study on Delamination Rate in Determining the Miscibility of Resins by Co-solvent Method

作　　者：董雪茹[1] 范忠雷[1] 刘大壮[1] 刘齐璋[1] 常静[1] 

机构地区：[1]郑州大学院化工学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2004年第1期63-65,共3页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省自然科学基金资助项目(0311022700)

摘　　要：以醇酸树脂-氯化聚丙烯-甲苯体系为例,采用共溶剂法考察了相容性和分子量对树脂分层速率的影响,结果表明:树脂间相容性对分层速率起着主要作用,相容性差的体系分层速率快,反之分层速率慢;在相容性相近的情况下,溶液的粘度大小(分子量)才对分层速率产生影响,粘度小的分层快,粘度大的分层慢;还发现多分散的高聚物中,分子量小的首先扩散进入分层的清液中.　Taking the system consisting of chlorinated polypropylene,alkyd resin and benzene as an example,the effect of miscibility and molecular weight on delaminating rate are investigated by the co-solvent method.The result shows that the miscibility of the resins plays a dominant role in determining the delamination rate,the worse of the miscibility system is,the faster of the delamination rate is,and vice versa;only in similar miscibility systems,the delamination rate can be affected by the viscosity of the systems,the great viscosity system is slower than the little ones.In polydispersity polymer system,the first entering clear solution is the small molecular weight grade.

关 键 词：共溶剂法 树脂 相容性 分层速率 氯化聚丙烯 分子量 粘度 

分 类 号：TQ320[化学工程—合成树脂塑料工业]