钩针工艺之于活性碳纤维/环氧树脂电路屏吸波复合材料的设计

姚斌; 马葳葳; 夏少旭; 吴琪琳

doi:10.13801/j.cnki.fhclxb.20160322.006

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钩针工艺之于活性碳纤维/环氧树脂电路屏吸波复合材料的设计

doi: 10.13801/j.cnki.fhclxb.20160322.006

姚斌^1,2,
马葳葳^1,2,
夏少旭^1,2,
吴琪琳^1,2,

1.
东华大学纤维材料改性国家重点实验室, 上海 201620;
2.
东华大学材料科学与工程学院, 上海 201620

基金项目: 国家自然科学基金（60975059）；上海市教育委员会科研创新重点项目（14zz069）

详细信息

通讯作者:
吴琪琳,博士,研究员,研究方向为碳材料,E-mail:wql@dhu.edu.cn

中图分类号: TB332
计量
- 文章访问数: 788
- PDF下载量: 377
- 被引次数: 0
出版历程
- 收稿日期: 2016-01-11
- 修回日期: 2016-03-16
- 刊出日期: 2017-01-15

Crochet process in design of activated carbon fibers/epoxy circuit screen composites with high microwave absorbing

YAO Bin^1,2,
MA Weiwei^1,2,
XIA Shaoxu^1,2,
WU Qilin^{1,2
,}

1.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China;
2.
College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

摘要

摘要: 通过钩针工艺将活性碳纤维（ACF）和玻璃纤维（GF）混编，提高了频率选择性表面（FSS）的可设计性和复杂性，制备了ACF钩针结构单元电路屏碳纤维/环氧树脂（ACF/EP）复合材料。研究了不同编织结构和ACF质量分数对复合材料吸波性能的影响。结果表明：ACF质量分数为100%的4针枣形FSS的ACF/EP复合材料和质量分数为50%的16针枣形FSS复合材料的最大反射损耗（RL）可以达到-50 dB以上，有效吸收带宽（RL<-10 dB）达10 GHz以上。复杂的钩针设计使ACF/EP复合材料的多孔结构增多，有效吸收带宽变宽，4针枣形结构具有较多不规整孔径使吸波效果显著。适量的ACF质量分数结合编织结构有利于获得理想的CF/EP吸波复合材料。
- 钩针工艺 /
- 碳纤维 /
- 频率选择型表面 /
- 多孔结构 /
- 吸波性能
Abstract: Crochet process was specially applied to combine activated carbon fibers (ACF) with glass fibers (GF) to improve the designability and complexity of frequency selective surface (FSS), ACF crochet structure circuit screen carbon fibers/epoxy(ACF/EP) composites were prepared. The effect of different knitted structure and ACF mass fraction to microwave absorbing performance of composites was discussed. The results show that the maximum reflection loss (RL) of both 4-needle-date-shaped FSS CF/EP composites with 100% CF and 16-needle-date-shaped FSS composites with 50% CF are higher than -50 dB, in addition, the effective absorption bandwidth (RL<-10 dB) could reach to 10 GHz. With complex crochet design, the porous structure of CF/EP composites increase, effective absorption bandwidth(RL<-10 dB) broaden, and 4-needle-date-shaped structure with more irregular aperture has excellent microwave absorbing property. Ideal CF/EP microwave absorbing composites will be obtained by combining the suitable mass fraction of chopped CF and knitted structure.
- crochet process /
- carbon fiber /
- frequency selective surface /
- porous structure /
- microwave absorbing property