Abstract:
A hollow emulsion with P(MM/BA/MAA )as core and P(St/MA/BA)as shell was pre-oared by the semi-continuous polymerization and post-treatment with alkali. The micro-structure and of the hollow emulsion particle was characterized by TEM. The influence of amount of emulsifier Morphology on particle size and influence of MMA and core/shell monomer ratio on the whiteness and viscosity were dis-cussed in details. The results showed that the smaller particles and a narrow particle size distribution could be obtained when the content of emulsifier was 1. 5% of the monomers. With the increase of MAA dosage and of core/shell ratio, the hollowness improved, and when MAA was 20% in core and core/shell ratio was 1: 5. the whiteness reached 93. 60.
Key words:
seed emulsion polymerization,
hollow,
whiteness,
viscosity,
hollowness
摘要： 采用半连续滴加方法和碱溶胀后处理方法制备了 P(MAA/MMA/BA)为核、P(St/MA/BA)为壳的空心乳 液。详细研究了乳化剂的用量对粒径的影响，MAA用量、核壳比对乳液的白度和黏度的影响，并利用透射电镜对空心 乳液的微观结构进行了表征。结果表明，乳化剂用量为单体质量的1.5%时，乳胶粒粒径较小，分布较窄;MAA用量及核壳比增加，中空度增加，当 MAA用量为核单体的20%、核壳比为 1∶5时，白度达到 93.60。
关键词:
种子乳液聚合,
中空结构,
白度,
黏度,
中空度
Zhang Fuqiang, Wang Xiaohui, Yin Yanhong, Ren Li. Preparation of Hollow Polymer Emulsion and Its Properties[J]. Paint & Coatings Industry, 2009, 39(3): 45-47.
张福强, 王晓晖, 尹艳洪, 任 丽. 空心乳液的制备及其性能研究[J]. 涂料工业, 2009, 39(3): 45-47.