机构地区: 长春工业大学化学工程学院
出 处: 《长春工业大学学报》 2010年第6期631-635,共5页
摘 要: 将不同量的甲基丙烯酸甲酯(MMA)与甲基丙烯酸缩水甘油酯(GMA)混合单体接枝聚合到聚丙烯酸丁酯橡胶上制备聚丙烯酸酯增韧剂乳液,用分光光度法(浊度法)通过测量乳液的临界聚沉浓度(CCC)值来表征乳液的稳定性。实验结果表明:当GMA的含量较低时,对乳液的稳定性影响小,乳液的CCC值低,约为0.084mol/L左右;当GMA重量含量超过总反应物的2%时,乳液的稳定性随着GMA含量的增加而提高。 The stability of butyl acrylate(BA) copolymerized with methyl methacrylate(MMA)/glycidyl methacrylate(GMA) mixture in various compositions,which was used as toughner was investigated by spectrophotometric(turbidity) method.The experiments demonstrate that lower amount addition of GMA have a little influence on the latex stability,CCC values are about 0.084 mol/L.When the amount of GMA exceeded 2% of the total reactants,it began to improve the stability of the latex.