Influence of blending methods on mechanical properties ofalumina/polycarbonate composites.
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 Methacryloxypropyltrimethoxysil...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/04392156969479237380 |
| Summary: | 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.
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