具有隔离结构绝缘导热复合材料性能的研究
发布时间：2018-11-15 08:01
【摘要】：以通用级聚苯乙烯(GPPS),超高相对分子质量聚乙烯(UHMWPE)为基底树脂,苯乙烯-乙烯-丁烯-苯乙烯嵌段共聚物(SEBS)溶液为胶黏剂,六方氮化硼(BN)为导热填料,通过胶黏剂法制备具有隔离结构的绝缘导热复合材料。研究了BN的尺寸和用量对具有隔离结构绝缘导热复合材料微观结构、导热性能、导热通道及BN取向的影响。结果表明:BN的添加对复合材料导热性能的提升十分明显。在BN质量分数为40%时,隔离结构BN(10μm)/GPPS复合材料的导热系数为2.0 W/(m·K)是添加BN(1μm)/GPPS复合材料导热系数的4.2倍。此外,BN/UHMWPE/GPPS与BN/EG/GPPS复合材料对基底树脂导热性能有着更加优异的提升。
[Abstract]:The superhigh molecular weight polyethylene (UHMWPE) of general grade polystyrene (GPPS),) was used as the base resin, the (SEBS) solution of styrene-butene-styrene block copolymer as the adhesive, and the hexagonal boron nitride (BN) as the thermal conductive filler. Insulation thermal conductive composites with isolated structure were prepared by adhesive method. The effects of the size and amount of BN on the microstructure, thermal conductivity, thermal conduction channel and BN orientation of insulating thermal conductive composites with isolated structure were studied. The results show that the thermal conductivity of composites is improved obviously by adding BN. When the mass fraction of BN is 40, the thermal conductivity of isolated BN (10 渭 m) / GPPS composites is 2. 0 W / (m K), which is 4.2 times that of BN (1 渭 m) / GPPS composites. In addition, BN/UHMWPE/GPPS and BN/EG/GPPS composites have more excellent thermal conductivity.
【作者单位】： 四川大学高分子科学与工程学院;
【分类号】：TB332
，
本文编号：2332678
[Abstract]:The superhigh molecular weight polyethylene (UHMWPE) of general grade polystyrene (GPPS),) was used as the base resin, the (SEBS) solution of styrene-butene-styrene block copolymer as the adhesive, and the hexagonal boron nitride (BN) as the thermal conductive filler. Insulation thermal conductive composites with isolated structure were prepared by adhesive method. The effects of the size and amount of BN on the microstructure, thermal conductivity, thermal conduction channel and BN orientation of insulating thermal conductive composites with isolated structure were studied. The results show that the thermal conductivity of composites is improved obviously by adding BN. When the mass fraction of BN is 40, the thermal conductivity of isolated BN (10 渭 m) / GPPS composites is 2. 0 W / (m K), which is 4.2 times that of BN (1 渭 m) / GPPS composites. In addition, BN/UHMWPE/GPPS and BN/EG/GPPS composites have more excellent thermal conductivity.
【作者单位】： 四川大学高分子科学与工程学院;
【分类号】：TB332
，
本文编号：2332678
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