摘要
选择电导率不同的短碳纤维（SCF）为吸收剂制备了一系列环氧树脂（EP）／SCF吸波涂层，在一定的频率范围内测试EP／SCF涂层的介电常数和反射率，研究’了SCF的电导率对EP／SCF涂层介电性能和吸波性能的影响。结果表明，在一定条件下,SCF的电导率越大，在8～18GHz频段内EP／SCF涂层的介电常数实部和虚部也越大；EP／SCF涂层在8～18GHz频段的吸波性能也随着SCF电导率的增大而增强；EP／SCF涂层的吸波性能在8～18GHz频段内存在最大吸收点，越靠近最大吸收点，SCF的电导率对涂层吸波性能的影响越明显。
A series of epoxy（EP）/short carbon fiber（SCF） absorbing coatings were prepared with different conductivity SCF as absorbent. The permittvity and reflectivity of EP/SCF coating at certain frequency were tested, and the effects of SCF conductivity on the dielectric property and absorbing property of EP/SCF coating were studied. The results showed that the real part and imaginary part of permittivity increased with the increasing of SCF conductivity in the frequency rarge of 8 - 18 GHz, and the absorbing property increased with the increasing of SCF conductivity. The effects of SCF conductivity on the absorbing property was more obvious at the point of maximum absorbing.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2008年第5期26-29,共4页
Engineering Plastics Application
关键词
短碳纤维
涂层
电导率
介电常数
short carbon fiber, coating, conductivity, permittivity
