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Preparation and Regulation of Electromagnetic Parameter of Carbon Fiber/Aramid Paper-based Composite Materials
Received:February 13, 2023  
DOI：10.11980/j.issn.0254-508X.2023.10.005
Key Words:electromagnetic parameter  aramid paper  inclined wire forming  jet-to-wire speed ratio
Fund Project:国家重点研发计划（2021YFB3700104）。
Author NameAffiliationPostcode
QIAO Yuanjian School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
HUANG Zhengsheng School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
XIA Chenbin School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
WANG Yi* School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
LONG Jin School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
HU Jian School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
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Abstract:In this study， the paper-based composite materials with flexible electromagnetic parameters were prepared from carbon fiber and aramid fiber by inclined wire forming. The distribution of carbon fiber was controlled by adjusting jet-to-wire speed ratio to realize the adjustment of the paper electromagnetic parameters of paper-based composite materials at machine and cross direction （MD and CD）. The results showed that when the jet-to-wire speed ratio was 0.5， the tensile index MD/CD ratio of paper-based composite materials was 2.2， and the permittivity real part MD/CD ratio was 2.1~2.2 at 8~12 GHz. When the jet-to-wire speed ratio was 1.2， the tensile index MD/CD ratio of parper-based composite materials was 1.5， and the permittivity real part MD/CD ratio was 1.5~1.6 at 8~12 GHz. The results showed that the control of jet-to-wire speed ratio was an important method to regulate the electromagnetic parameters of carbon fiber/aramid paper-based composite materials.
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