PA11/SiC复合材料的制备及其吸波性能研究  

Preparation and Absorbing Properties of PA11/SiC Composite Materials

作　　者：曾莉 郑玱 漆诚 董茜娟 刘伟建 罗俊峰 ZENG Li;ZHENG Xi;QI Cheng;DONG Xi-juan;LIU Wei-jian;LUO Jun-feng(Jiangxi Hongdu Aviation Industry Group Company Ltd.,Jiangxi Nanchang 330024,China)

机构地区：[1]江西洪都航空工业集团,江西南昌330024

出　　处：《广州化工》2022年第2期27-29,共3页GuangZhou Chemical Industry

摘　　要：通过对具有良好吸波性能的SiC分子表面进行有机改性处理,改善SiC与尼龙11(PA11)的相容性,采用物理熔融共混制备PA11/SiC复合材料并研究其电磁性质和微波吸收性能。实验结果表明:在SiC含量为10%的PA11/SiC复合材料在厚度为2 mm时具有比较强的吸收,达到-26 dB,且反射衰减低于-10 dB(代表超过90%的吸收)的频带宽度超过4 GHz,由此得出,PA11/SiC复合材料是一种微波波段优异的吸收材料。The compatibility of SiC with nylon 11(PA11)was improved by organically modifying the surface of SiC molecules with good absorbing properties.PA11/SiC composites were prepared by superfusion blending and their electromagnetic properties and microwave absorption properties were studied.Experiments showed that PA11/SiC composite material with 10%SiC content had a relatively strong absorption at the thickness of 2 mm,up to-26 dB,and the reflection attenuation less than-10 dB(representing more than 90%absorption)had a frequency band width of more than 4 GHz.Therefore,it was concluded that PA11/SiC composite was an excellent absorption material in microwave band.

关 键 词：PA11 SIC 电磁性质 微波吸收 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]