超细改性碳酸钙稀悬浮体的流变性质

Rhelogical Properties of Surface Modified Ultrafine Calcium Carbonate Suspensions

摘要: 研究了超细改性碳酸钙在不同相体积分率ψ下的流变性，质用电子显微镜探测了超声波分散前后悬浮体的结构。结果表明，超细致改性碳酸钙牛顿介质邻苯二甲酸二辛酯中呈现非牛顿行为，在ψ＝０．０２时，体系即有絮凝结构形成，在超声波作用后，絮凝结构解体。

Abstract: Non-newtonian behaviors will appear as surface modified ultrafine calcium car-bonate added into the newtonian medium.The suspension is a pseudoplastic fluid with yield stress.And we had also observed the formation and deformation of flocculation structure.