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《工程塑料应用》 2021年第01期
DOI:10.3969/j.issn.1001-3539.2021.01.025
玻璃纤维对PTFE/SiO2复合基板材料性能的影响
王丽婧,金霞,武聪,张立欣
中国电子科技集团公司第四十六研究所,天津 300220 
Effect of Glass Fiber on Properties of PTFE/SiO2 Composite Substrate
Wang Lijing, Jin Xia, Wu Cong, Zhang Lixin
China Electronics Technology Group Corporation No.46 Research Institute, Tianjin 300220, China 
摘要:采用表面改性、物料混合、压延成型、高温真空热压烧结工艺,得到了不同含量玻璃纤维(GF)增强聚四氟乙烯(PTFE)/二氧化硅(SiO2)复合基板材料,考察分析了GF含量对复合材料微观形貌、密度、吸水率、拉伸性能、压缩性能以及微波介电性能的影响情况。结果表明,随着GF含量的增加,PTFE/SiO2复合材料的密度逐渐减小,吸水率和损耗因子逐渐增大,拉伸模量、压缩模量和相对介电常数呈现出先增大后减小的趋势。当PTFE/SiO2复合材料中加入2%的GF时,复合材料具有良好的综合性能,密度为2.085 g/cm3,吸水率为0.094%,拉伸模量为1351 MPa,压缩模量为1643 MPa,相对介电常数为2.93,损耗因子为1.04×10-3。 
Abstract:The composite substrates were prepared using polytetrafluoroethylene (PTFE) resin as matrix, fused silicon dioxide (SiO2) as filler, and doped with different amount of glass fiber, through surface modification, mechanical mixing, calendering, hot press sintering. The effects of different glass fiber-doping amount on the microstructure, density, moisture absorption, mechanical and microwave dielectric properties of the composites were discussed. The result showed that composite density was decreased with increasing of glass fiber content. But water absoption and dielectric loss were just the opposite. As the doping level increased, tensile and compression module and dielectric constant firstly increased and then decreased. When the amount of glass fiber doping was 2%, the PTFE/SiO2 composites exhibited good density and microwave dielectric properties, the density of the sample was 2.085 g/cm3, moisture absorption was 0.094%, tensile and compression module was 1351 MPa and 1643 MPa respectively, dielectric constant was 2.93 and the dielectric loss was 1.04×10-3
关键词:复合材料;聚四氟乙烯;二氧化硅;玻璃纤维;微波介电性能 
Keywords:composite; polytetrafluoroethylene; silicon dioxide; glass fiber; microwave dielectric property 
本文引用格式:
王丽婧,金霞,武聪,等.玻璃纤维对PTFE/SiO2复合基板材料性能的影响[J].工程塑料应用,2021,49(1):130-134.
Wang Lijing,Jin Xia,Wu Cong,et al. Effect of glass fiber on properties of PTFE/SiO2 composite substrate[J]. Engineering Plastics Application,2021,49(1):130-134. 

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