核壳型复合高分子乳液乳胶粒子形态学

Morphology of core-shell hybrid latex particles

系统阐述了核壳型复合高分子乳液乳胶粒子形态方面的研究进展。探讨了单体亲水性、聚合工艺、加料方式、引发剂、聚合场所的粘度、种子交联度、聚合温度及反应体系pH值等对乳胶粒子形态的影响。介绍了热力学研究的概况 ,并通过计算界面自由能变化最小来控制和预测粒子的形态。讨论了粒子核壳结构对乳液性能的影响 ,如最低成膜温度 ,核壳结构在热处理后机械、光学性能的变化。总结了用来表征乳胶粒子核壳结构常用的手段 ,包括透射电镜法 (TEM) ,扫描电镜法(SEM) ,示差量热扫描法 (DSC) ,最低成膜温度法 (MFT)

The advance of study on the morphology of hybrid latex particles was reviewed. The factors that affect the morphology of particles were discussed. A thermodynamic equilibrium was introduced by calculating the interfacial Gibbs free energy change, which can be used to control and predict the morphology of particles. The effect of core shell structure on properties of latex was described. And finally the characterization methods of morphology of hybrid latex were summarized.