酚醛空心微球对聚合物基复合材料性能的影响

摘要/Abstract

摘要： 以混合后的石英纤维、酚醛纤维和酚醛空心微球作为增强体,加入酚醛树脂制备出复合材料。研究了酚醛空心微球不同配比对复合材料各项力学性能、隔热性能、微观形貌的影响。结果表明,酚醛空心微球能降低复合材料的密度,提升隔热性能,降低力学性能。当酚醛空心微球含量为6%时,酚醛空心微球分散均匀,复合材料的隔热性能有明显提升,材料的比拉伸强度和比压缩强度值最大,获得的效益最高。

关键词: 聚合物基复合材料, 酚醛空心微球含量, 力学性能, 隔热性能, 微观结构

Abstract: In this paper, the effects of different contents of the phenolic hollow microspheres on the mechanical properties, thermal insulation and microstructure of the hybrid composites were investigated. Quartz fiber, phenolic fiber and phenolic hollow microspheres were used as reinforcing materials by physical mixing for the production of hybrid composites. Experimental results show that the porosity of composites is increased by the incorporation of phenolic hollow microspheres, and the air bubbles in the pores provids better heat insulation performance. With the increase of the mass fraction of phenolic hollow microspheres, the density and mechanical properties of the composites were all reduced. The addition of phenolic hollow microspheres can obviously improve the thermal insulation property. Through the SEM photographs of fracture surfaces, it was found that when the phenolic hollow microsphere content was 6%, the phenolic hollow microspheres dispersed uniformly. The composites′ thermal insulation increased clearly and their specific tensile strength and compression strength reached maximum, realizing the best effects.

Key words: polymer composites, phenolic hollow microspheres, mechanical properties, thermal insulation, microstructure

中图分类号:

TB332

沈晓钦. 酚醛空心微球对聚合物基复合材料性能的影响[J]. 玻璃钢/复合材料, 2018, 0(4): 102-105.

SHEN Xiao-qin. EFFECTS OF PHENOLIC HOLLOW MICROSPHERES ON THE PROPERTIES OF POLYMER COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2018, 0(4): 102-105.

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