丁烯酸乙烯酯用于白乳胶的改性  

Modification of white glue with vinyl butenoate

作　　者：廖金秀[1] 苏涛[1] 腊明[1] 王小建[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《中国胶粘剂》2007年第2期24-26,共3页China Adhesives

摘　　要：丁烯酸乙烯酯(VB)存在于醋酸乙烯工业的废液中。制备低固含量(＜22%)的白乳胶(聚醋酸乙烯酯乳液)时,加入少量(白乳胶总质量的0．03%～0．56%)的VB与醋酸乙烯酯一起共聚,可制得表观粘度为13～65 Pa·s的白乳胶,而且其粘接强度和耐沸水性都比相同条件下制备的不加VB的白乳胶明显提高。用于已有的白乳胶改性时,加入0．6%～12．9%(按白乳胶质量计)的VB进行加热反应,其粘接强度及耐沸水性均可明显增加。表明工业废液中的丁烯酸乙烯酯具有提取应用的价值。Vinyl 2-butenoate （VB） exists in the industrial waste liquid of vinyl acetate production. When preparing polyvinyl acetate emulsion （white glue） of low solid content （〈22%）,adding VB in small amounts （0.03%-0.56% of the total mass of the white glue）to copolymerize with vinyl acetate can produce white glue whose apparent viscosity is 13-65 Pa.s,and its adhesive strength and t0 boiling water-resistant are obviously enhanced compared with the white glue without adding VB in the same preparing conditions. As to improve the existed white glue,adding VB （0.6%-12.9% of the mass of white glue） and conducting a heating reaction,the glue＇s adhesive strength and boiling water-resistant are also enhanced markedly. It was shown that the vinyl butenoate in the industrial waste liquid has the value to be recovered and utilized.

关 键 词：丁烯酸乙烯酯 聚醋酸乙烯酯乳液 白乳胶 粘度 粘接强度 耐水性 

分 类 号：TQ433.433[化学工程]