石英/低聚倍半硅氧烷改性有机硅透波材料性能研究

doi:10.3969/j.issn.1000-1093.2015.12.019

摘要/Abstract

摘要： 以缩水甘油醚基低聚倍半硅氧烷（POSS）为改性剂、甲基苯基有机硅树脂为基体、石英纤维为增强剂，制备了一种透波复合材料。研究了材料的介电性能和力学性能。结果表明，石英/POSS改性有机硅树脂基复合材料压缩强度为71.4 MPa，弯曲强度为137.0 MPa. 材料的介电性能优良，室温～600 ℃和8.7 GHz频率下测试的介电常数小于3.3，损耗角正切值小于0.007，是一种集防热、透波、承载等一体的多功能复合材料。

关键词: 复合材料, 有机硅树脂, 低聚倍半硅氧烷, 透波复合材料, 力学性能, 介电性能

Abstract: A kind of wave-transparent composite is made by using glycidyl POSS as modifier, poly(methylphenylsiloxane) as matrix resin, quartz fiber as reinforcing agent，and its mechanical and dielectric properties are studied. The results show that the compressive strength and bending strength of quartz/POSS modified silicone composite are 71.4 MPa and 137.0 MPa, respectively. The composite has excellent dielectric properties with dielectric constant of less than 3.3 and dielectric dissipation factor of less than 0.007 at 8.7 GHz and temperature from room temperature to 600 ℃. It is a multifunctional composite, including heat protection, wave-transmission and load carrying.

Key words: composite, silicone resin, POSS, wave-transparent composite, mechanical property, dielectric property

中图分类号:

TB332

魏化震，李莹，孔国强. 石英/低聚倍半硅氧烷改性有机硅透波材料性能研究[J]. 兵工学报, 2015, 36(12): 2350-2357.

WEI Hua-zhen, LI Ying, KONG Guo-qiang. Study of Properties of Quartz/POSS Modified Silicone Wave-transparent Materials[J]. Acta Armamentarii, 2015, 36(12): 2350-2357.

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