作　　者： ; ; ; ; ;

机构地区： 合肥工业大学化学工程学院高分子系

出　　处： 《聚氨酯工业》 2012年第5期35-37,共3页

摘　　要： 以聚醚210、聚醚305、1,4-丁二醇、三羟甲基丙烷为原料,氧化铝(Al2O3)为导热填料,与异佛尔酮二异氰酸酯反应合成导热聚氨酯灌封胶。研究Al2O3用量、催化剂和聚醚多元醇的种类对灌封胶性能的影响。结果表明,当Al2O3的质量分数从0增加到80%时,灌封胶的导热系数从0.08 W/(m.K)增加到0.76 W/(m.K),是纯聚氨酯灌封胶的9倍多。SEM测试表明,Al2O3在体系中有着较好的分散性。 Based on polyoxypropylene （ PPG）, 1,4-butylene-glycol （ BDO ）, trimethylolpropane （ TMP）, iso- phorone diisocyanate （IPDI）, alumina powder was chosen as the heat conduction filler, the heat conduction polyu- rethane （PU） pouring adhesive was synthesized. The effects of the Al2O3 filler content and the polyol species on the thermal conductivity and mechanical properties were researched. The results indicated that Al2O3 powder in the Al2O3/PU composities increased from 0 to 80%, the thermal conductivity increased from 0. 08 W/（m·K） to 0.76 W/（m·K）, which was 9 times than pure polyurethane. The results of SEM showed that Al2O3 particle was better dispersed in this system.

关 键 词： 聚氨酯 导热 灌封胶 氧化铝

领　　域： [化学工程]