作　　者： ; ; ; ;

机构地区： 合肥工业大学化学工程学院高分子系

出　　处： 《塑料》 2012年第6期29-31,114,共4页

摘　　要： 采用熔融共混的方式制备铝高填充聚丙烯,讨论铝粉用量、偶联剂种类对复合材料的导热率、电阻率和力学性能的影响。结果表明:当铝粉体积质量分数为70%时,复合材料的导热率达到3.524 W.m-1K-1,是未添加铝粉PP的14.6倍。随铝粉用量的增加,导热率增加,而电阻率和力学性能均下降。以POE-g-MAH为偶联剂,在PP/POE/POE-g-MAH质量比为10/1/0.6,铝粉的质量分数为40%时,导热系数为1.385 W.m-1K-1,并且使复合材料从绝缘材料变为抗静电材料,复合材料的综合性能较好。 High content aluminum particles filled polypropylenes were prepared with melt mixing. The effects of coupling agent and aluminum content on thermal conductivity, electrical resistivity and mechanical properties of them were investigated. The results indicated that the thermal conductivity of the composite with the volume fraction of 70 % aluminum reached 3. 524 W ~ m-~K-~, which was 14. 6 times of that of the composite without aluminum. With the increasing of aluminum content, the thermal conductivity of the composite increased, but electrical resistivity and mechanical properties decreased. The PP/POE/POE-g-MAH composite （ 10/1/0. 6, mass ratios） containing 40 % Al processed , the thermal conductivity of compsite reached 1. 385 W · m-1K-1. Moreover,the material remained preferable mechanical properties and the material was changed from insulation material to antistatic material.

关 键 词： 铝粉 聚丙烯 导热系数 抗静电 力学性能

领　　域： [化学工程]