Microwave Absorption and Mechanical Properties of Short-cutted Carbon Fiber/glass Fiber Hybrid Veil Reinforced Epoxy Composites  

作　　者：陈威 ZHEN Bowen XIE Yuxuan 贺行洋 SU Ying WANG Jun WU Yan CHEN Wei;ZHEN Bowen;XIE Yuxuan;HE Xingyang;SU Ying;WANG Jun;WU Yan(School of Civil Engineering,Architecture and Environment,Hubei University of Technology,Wuhan 430068,China;Building Waterproof Engineering and Technology Research Center of Hubei Province,Hubei University of Technology,Wuhan 430068,China;School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China;Institute of Advanced Material Manufacturing Equipment and Technology,Wuhan University of Technology,Wuhan 430070,China;Hubei Standardization and Quality Institute,Wuhan 430061,China)

机构地区：[1]School of Civil Engineering,Architecture and Environment,Hubei University of Technology,Wuhan 430068,China [2]Building Waterproof Engineering and Technology Research Center of Hubei Province,Hubei University of Technology,Wuhan 430068,China [3]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China [4]Institute of Advanced Material Manufacturing Equipment and Technology,Wuhan University of Technology,Wuhan 430070,China [5]Hubei Standardization and Quality Institute,Wuhan 430061,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第1期248-254,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by Key Research and Development Plan in Hubei Province of China(Nos.2022BCA082,2022BCA077,2021BCA153);Initial Scientific Research Fund for High-level Talents of Hubei University of Technology(No.GCRC2020017)。

摘　　要：This work aims at investigating the microwave absorption and mechanical properties of short-cutted carbon fiber/glass fiber hybrid veil reinforced epoxy composites.The short-cutted carbon fibers(CFs)/glass fibers(GFs)hybrid veil were prepared by papermaking technology,and composites liquid molding was employed to manufacture CFs/GFs hybrid epoxy composites.The microstructure,microwave absorbing properties and mechanical properties of the hybrid epoxy composites were studied by using SEM,vector network analyzer and universal material testing,respectively.The reflection coefficient of the composites were calculated by the measured complex permittivity and permeability in the X-band(8.2-12.4 GHz)range.The optimum microwave absorption properties can be obtained when the content of CFs in the hybrid veil is 6 wt%and the thickness of the composites is 2 mm,the minimum reflection coefficient of-31.8 dB and the effective absorption bandwidth is 2.1 GHz,which is ascribed to benefitting impedance matching characteristic and dielectric loss of the carbon fiber.Simultaneously the tensile strength and modulus can achieve 104.0 and 2.98GPa,demonstrating that the CFs/GFs hybrid epoxy composites can be a promising candidate of microwave absorbing materials with high mechanical properties.

关 键 词：microwave absorption fiber reinforced composites PAPERMAKING carbon fiber 

分 类 号：TB33[一般工业技术—材料科学与工程]