设计苯丙乳液配方中的乳化剂体系,讨论了乳化剂的类型和用量、加入方式及其配比等对乳液平均粒径的影响.借助马尔文激光粒度分布仪对乳液平均粒径进行测试,结果表明:乳化剂总用量越多,乳液平均粒径越小;反应型阴离子乳化剂比普通阴离子乳化剂所得乳液平均粒径小;非离子乳化剂中聚氧乙烯基数目越多,乳液平均粒径越小;乳化剂在预乳化液与打底液中的分配比例越小,乳液平均粒径越小;对于阴非离子乳化剂复配体系,阴离子乳化剂用量比例越大,乳液平均粒径越小.
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