Development of high impact and thermal conducting insulating polycarbonate/polyethylene/alumina composites

作者：Wen, Wen; Liu, Shumei; Fu, Yi; Zhao, Jianqing^*

来源：Polymer Materials Science and Engineering, 2011, 27(5): 137-140.

• Conducting properties
• High impact
• Izod impact strength
• Mass ratio
• Master batch
• PE-g-MAH

Alumina (Al2O3) was filled in linear low density polyethylene (LLDPE) with a polyethylene grafted by maleic anhydride (PE-g-MAH) compatibilizer to produce a conducting master batch, which was then dispersed in polycarbonate (PC). A PC/PE/Al2O3 composite with high impact and thermal conducting properties through such a master batch method was prepared. The effect of blending procedures, compatibilizer, PC/PE ratios and the content of alumina on properties of the composite was investigated. The PC/LLDPE/PE-MAH composite (5/1/1 mass ratios) containing 40% Al2O3 processed a 27.2 kJ/m2 of Izod impact strength and 0.644 W/m·K of the thermal conductivity. The thermal conductivity of the composite with 60% alumina reached 0.895 W/m·K, which was 3.4 times of that of the PC/PE blend (0.260 W/m·K).

• 出版日期2011-5
• 单位华南理工大学