Applications of PPy and PPy/MMT composite as microwave absorbing and shielding materials
The complex permittivity and microwave absorption properties of polypyrrole/epoxy (PPy/EP) and polypyrrole/montmorillonite/epoxy (PPy/MMT/EP) composite were investigated in X-band (8.2-12.4GHz) frequency range. The PPy/MMT composite was prepared by in-situ chemical polymerization. Complex permittivity and permeability were measured using a network analyzer (HP8722ES). The reflection loss of PPy/MMT/epoxy and PPy/epoxy were calculated according to the model of a single-layered wave absorber backed by a perfect conductor. The prepared composite can fruitfully be utilized for suppression of electromagnetic interference (EMI) and reduction of radar signatures.
GAO Jingwei LI Guang JIANG Jianming
College of Material Science and Engineering, Donghua University, Shanghai 201620, P.R.China
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
1061-1064
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）