聚醋酸乙烯乳液缩醛化的改性研究  

Study on Polyvinyl Acetate EmulsionImproved wich Acetalation

作　　者：孙日圣[1] 

机构地区：[1]江西工业大学

出　　处：《粘接》1994年第3期18-21,38,共5页Adhesion

摘　　要：本文介绍了为提高聚醋酸乙烯乳液稳定性、耐水性和防冻性而进行缩醛化改性的原理，并确定了最佳工艺条件即甲醛与聚乙烯醇的配比为０．４５～０．５０。Polyvinyl acetate emulsion can be improved in its stability and ability to resistwater and prevent frost after the process ofacetalation. This article introduces the principle of acetalation and the selection of theoptimal technological condition,and it defines the ingredient proportion of methanalto PVA to be 0. 45～0. 50.

关 键 词：聚醋酸乙烯 缩醛化 改性 胶粘剂 

分 类 号：TQ433.433[化学工程]