Mechanical and Rheological Properties of PC Composite Filled with Modified SiO2 Nanoparticles
WANGPing ZHAO Jian-qing JIANG Zhi-jie LIU Yun-chun LIU Shu-mei
Sch. Mater. Sci. & Eng，South China Univ. of Technol. Sch. Mater. Sci. & Eng，South China Univ. of Technol. Sch. Mater. Sci. & Eng，South China Univ. of Technol. Sch. Mater. Sci. & Eng，South China Univ. of Technol. Sch. Mater. Sci. & Eng，South China Univ. of Technol.
Abstract： Modified SiO2 nanoparticles were filled into polycarbonate (PC) by two different methods. In order to enable the inorganic nanoparticles dispersed evenly in the PC matrix, the silane coupling agent KH-550 was used to modify the surface of SiO2 nanoparticles by wet treatment. The relationships between mechanical and processing properties of PC/SiO2 composite and silica content were examined, and product performance characterized. The characteristics of rigid modified inorganic nanoparticles filled on a typical engineering plastic PC were also studied to explore the mechanism of its strength enhancement and the rheological properties of PC/SiO2 composite. The results show that the modified SiO2 spheres had uniform dispersion in PC matrix and PC/SiO2 composite had good tensile strength and rheological effect.
2009, Vol. 9 
