有机硅改性聚醋酸乙烯乳液的制备  

Preparation of Polyvinyl Acetate Emulsion Modified by Organic Silicone

作　　者：戴洪义[1] 高世萍[1] 于长顺[1] 周景辉[1] 

机构地区：[1]大连轻工业学院化工与材料学院,辽宁大连116034

出　　处：《上海化工》2005年第5期14-16,共3页Shanghai Chemical Industry

摘　　要：利用核/壳乳液聚合的方法,以乙烯基硅氧烷的预聚物为改性剂,以聚乙烯醇为保护胶,对聚醋酸乙烯进行改性,制备出粘结强度高、耐水性能十分优异的改性乳液。实验还考察了反应温度、乳化剂、引发剂、改性单体用量对乳液性能的影响,指出了改性反应的关键控制步骤及反应条件。Polyvinyl acetate emulsion modified by prepolymer of ethenysiloxane is prepared by core/shell polymerization technology, using polyvinyl alcohol as protective colloid. The results show that the modified polyvinyl acetate has excellent water resistance and adhesion strength. The influences of the modifier, the initiator, the emulsification and the reaction temperature of polymerization of vinyl acetate on the emulsion have discussed. The key step and reacting conditions of the polymerization have been showed.

关 键 词：改性聚醋酸乙烯乳液 制备 有机硅 核/壳乳液聚合 乙烯基硅氧烷 聚乙烯醇 粘结强度 改性乳液 耐水性能 反应温度 乳液性能 单体用量 反应条件 控制步骤 改性反应 改性剂 预聚物 乳化剂 引发剂 

分 类 号：TQ433.43[化学工程]