摘要
用种子聚合法合成核壳型丙烯酸酯复合乳液，并转化成水溶胶。测定玻璃化温度（Ｔｇ）对核壳型复合乳液进行表征。考察了聚合方法、丙烯酸用量、氨化温度等对乳液及其水溶胶的影响。结果表明，用种子聚合法制得丙烯酸酯复合乳液，力学稳定性好、氨化后水溶胶透明度高；丙烯酸用量对水溶胶性能有较大影响，用量过多，胶膜耐水性差，过少，氨化困难；氨化温度对成胶也有明显影响。研究了水溶胶的流变性，结果表明，水溶胶粘度随着剪切速率的增大而下降。本研究制得的水溶胶膜具有较优异的综合性能。
The core/shell polyacrylate composite latex was synthesized by seed polymerization method, and was inverted into hydrosol. The composite latex was judged by the measurement of T g. The effects of polymerizing process, acrylic acid content, ammoniation temperature on the properties of latex and hydrosol were studied. The results show that the synthesized latex has good mechanical stability and has high transparency after ammoniation, and that the acrylic acid content and ammoniation temperature greatly affect the properties of hydrosol, excessive acrylic acid leads to poor water tolerance of the hydrosol film, insufficient amount makes it difficult to ammoniate the latex. The rheological property of the hydrosol was studied, the result shows that the viscosity of the hydrosol decreases with increasing of shear rate. The hydrosol has a well qualified property, and can be used in coatings, adhesives, aqueous inks, etc..
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1999年第4期148-150,共3页
Polymer Materials Science & Engineering
关键词
水溶胶
复合乳液
聚丙烯酸酯
核壳粒子
流变性
hydrosol, composite latex, polyacrylate, core shell particles, rheological property
