Citation: Yan Xia CAO, Miao DU, Qiang ZHENG. Rheological Behavior for Mica-filled Polypropylene Composite Melts[J]. Chinese Chemical Letters, ;2004, 15(5): 567-570. shu

Rheological Behavior for Mica-filled Polypropylene Composite Melts

Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027

Received Date: 16 April 2003

Fund Project: This work was supported by the National Science Fund for Distinguished Young Scholars (grant 50125312), Key Program of the National Natural Science Foundation of China (grant 50133020) and Special Funds for Major State Basic Research Project, China (grant G 1999064800).

The study on rheological properties of a series of mica-filled polypropylene (PP) composites was carried out. The influence of surface-treatment of mica particles on dynamic rheological behavior of the composites were dealt with. The viscosity (η) and dynamic modulus (G') of the composite melts were higher than those of PP matrix, especially those for systems treated with silane, which was attributed to the interfacial adhesion enhancement. However, surface-treatment of mica by titanate resulted in lower η and G', as compared with the treatment by silane. The reason for this is believed to be the formation of the mono-molecular layer on the mica surface.
- Mica,
- polypropylene,
- dynamic rheological behavior
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