聚醋酸乙烯酯乳液冻融稳定改性的机理  

Mechanism of Freezing-thawing Stability of Polyvinyl Acetate Emulsion

作　　者：阎立梅[1] 刘晓辉[1] 王致禄[1] 

机构地区：[1]黑龙江省石油化学研究院,哈尔滨150040

出　　处：《应用化学》2001年第2期120-124,共5页Chinese Journal of Applied Chemistry

摘　　要：研究了聚乙烯醇 ( PVA)及不同缩醛度聚乙烯醇缩甲醛 ( PVAF)的水溶液性质 ,PVA和 PVAF为保护胶体的聚醋酸乙烯酯 ( PVAc)乳液 ,醋酸乙烯酯 ( VAc)在 PVA和 PVAF上的接枝率对冻融稳定性的关系 ,和乳液冻融稳定改性机理 .The properties of polyvinyl alcohol and formalized polyvinyl alcohol aqueous solution were studied and their behavior as a protective colloid for polyvinyl acetate emulsion, especially in freezing-thawing conditions were compared, including the function of graft degree of vinyl acetate on them. The results showed that polyvinyl formal was much preferable of polyvinyl alcohol in this respect. The mechanism of the modification was discussed.

关 键 词：聚醋酸乙烯酯乳液 冻融稳定性 聚乙烯醇缩甲醛 保护胶体 胶粘剂 接枝改性 聚乙烯醇 

分 类 号：TQ433.433[化学工程]