复合乳液水溶胶的转化及其流变性的研究

用种子聚合法合成核壳型丙烯酸腹复合乳液，并转化成水溶胶。测定玻璃化温度对核过 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。

STUDY OF HYDROSOL INVERTED FROM POLYACRYLATE COMPOSITE LATEX AND ITS RHEOLOGICAL PROPERTY

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..