通过对苯丙乳液进行配方设计,考察了玻璃化温度,乳化剂类型、用量及配比和第2次滴加单体的组成对乳液冻融稳定性的影响.乳液性能测试结果表明:乳液聚合物玻璃化温度为15.7℃时,其冻融稳定性和成膜性能达到均衡;选择阴离子乳化剂脂肪醇聚氧丙烯醚硫酸钠和辅助乳化剂烯丙氧基羟丙基磺酸钠搭配,乳化剂占单体用量的1.5％,预乳化液和打底液中乳化剂分配比例为1∶1～2∶1,第2次滴加单体选择甲基丙烯酸甲酯和部分丙烯酸搭配,乳液冻融稳定性最佳.
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