苯丙乳液/硅溶胶复合体系的流变性研究  

Rheological Properties of Styrene-acrylate Copolymer Latex/Silica Sol Composite System

作　　者：吴力立[1] 张超灿[1] 李明[1] 邱媛[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2009年第1期19-21,共3页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(20474049)

摘　　要：为了了解聚合物乳液与硅溶胶复合后流变性能的变化,以苯丙乳液与硅溶胶复配得到一组稳定的复合体系,测定了该体系的粒径及粒径分布。通过研究复合体系的流变性能,发现随复合体系中乳液含量的增加,复合体系的表观粘度依次增加。在一定的σ范围内,复合体系表现出牛顿流体的特性。随温度的升高,复合体系的表观粘度呈逐步降低趋势。复合体系的流变行为与乳液的流变行为差异明显,与硅溶胶的流变行为较为接近。To research rheological properties change of latex and silica sol composite, in this paper, styrene-acrylate copolymer latex/siliea sol composite systems were prepared. From research of rheologieal properties of the composite systems, viscosity of the composite system increasea as the latex ratio rise was found, and in a certain region of σ, the composite system had Newton fluid character. As the temperature elevating, the viscosity of the composite system was decreased. The rheologieal properties of composite is more like the rheological properties of silica sol.

关 键 词：苯丙乳液 硅溶胶 复合 流变性能 

分 类 号：O636.1[理学—高分子化学]