Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (3): 567.doi: 10.7503/cjcu20180561

• Polymer Chemistry • Previous Articles     Next Articles

Preparation of Graphene/Carbon Aerogel and Its Applied Research in Multi-frequency Band Electromagnetic Interference

ZHANG Enshuang, LÜ Tong, LIU Tao, HUANG Hongyan, LIU Yuanyuan, GUO Hui, LI Wenjing*(), ZHAO Yingmin*(), YANG Jieying   

  1. Aerospace Institute of Advanced Material & Processing Technology, Beijing 100074, China
  • Received:2019-08-10 Online:2019-01-24 Published:2019-01-24
  • Contact: LI Wenjing,ZHAO Yingmin E-mail:ht31wj@126.com;zhaoyingmin-0502@163.com

Abstract:

The graphene/carbon aerogels material was prepared by sol-gel method. The composite aerogels with different hierarchical micro-nanostructures and high conductivity were prepared. Releasing composite aerogels powder in air, the optic attenuation performance of aerogels was measured at infrared, visible and millimeter waves. The results indicated that the shielding ratio of 7%G-CA powder was above 97% and 94%, correspondingly, at the beginning of release and after 20 min, both in infrared and visible wave band. For millimeter wave band, the shielding ratio of 7%G-CA powder is above 75% and 65%, at the beginning of release and after 10 min, respectively. The study is expected to extend application of smoke jamming.

Key words: Smoke jamming, Graphene, Carbon aerogel, Electromagnetic interference, Multi-frequency band

CLC Number: 

TrendMD: