3D编织碳纤维复合材料的制备及其屏蔽性能的研究  

Preparation of carbon fiber composite material by 3D weaving technology and research on shielding effectiveness

作　　者：雷忆三[1] 张瑞刚[1] 陈佳[1] 王富强[1] 闫丽丽[1] 

机构地区：[1]中国电子科技集团公司第33研究所,山西太原030006

出　　处：《功能材料》2012年第B11期253-256,共4页Journal of Functional Materials

基　　金：总装预研基金资助项目(9140A31030110JB3403)

摘　　要：用三维五向3D编织技术和模压成型工艺制备了碳纤维增强环氧树脂基电磁屏蔽复合材料,测试结果表明,三维五向编织结构可形成良好的导电网络,基于该结构制成的碳纤维复合材料屏蔽效能最高可达85dB,编织体整体化学镀镍可使材料的屏蔽效能提高约15dB,镀镍后的复合材料在14kHz～18GHz频段内具有较高的屏蔽效能,最高可达95dB。同时发现,该材料的屏蔽性能显示各向异性,这与编织体的纤维取向和电磁波的极化方向有关。Carbon fiber reinforced epoxy-based electromagnetic shielding composite was prepared using the threedimensional five directions 3D weaving technology and molding process, the test results show that the three-dimensional five directions woven structure can form good conductive network, shielding effectiveness of carbon fiber composite based on the structure was up to 85dB, when braid is electroless nickel plating shield effectiveness improvement of about 15dB,with a high shielding effectiveness of composite nickel-plated in 14kHz-18GHz band, up to 95dB. Also we found that the shielding properties of the material was anisotropy, and relate to fiber orientation of braid and direction of polarization of electromagnetic waves.

关 键 词：屏蔽性能 3D编织 三维五向 碳纤维 复合材料 各向异性 

分 类 号：V258.3[一般工业技术—材料科学与工程]