Influence of blending methods on mechanical properties ofalumina/polycarbonate composites.

• Main Authors: Chia-Lang Kao, 高嘉朗
• Other Authors: Chi Wang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/04392156969479237380

碩士 === 國立成功大學 === 化學工程學系碩博士班 === 97 === In this research, we attempted to coat boehmite particles on surface of alpha/thata-Al2O3 particles by sol-gel route to improve surface reactivity of alpha/theta-Al2O3. we also used nanoscale gamma-Al2O3 particles to react with Methacryloxypropyltrimethoxysilane(MPS).Surface-modified ��-Al2O3 particles were then blended with bisphenol-A polycarbonate(PC) by diffedent blending methods to prepare Al2O3/PC composites.In an tempt to study the influences of different blending methods on mechanical properties of alumina/PC composite. TEM results showed that alpha/theta-Al2O3 particles does not coat with boehmite particles by sol-gel method in this study. The FT-IR and TEM results showed that gamma-Al2O3 could react with MPS successfully. DSC results showed that the moisture would cause crystallization of PC in solution-blending Al2O3/PC composite. TGA results showed that theramal degradation temperatures of both melt-blending and solution-blending Al2O3/PC composites decreased with increasing Al2O3 contents. Tensile testing results showed that the toughness of Al2O3/PC composites prepared by solution-blending method was better than by melt-blenging method.