TY - JOUR
T1 - Electromagnetic interference shielding and absorption properties of Ti3SiC2/nano Cu/epoxy resin coating
AU - Liu, Yi
AU - Jian, Xiaoyan
AU - Su, Xiaolei
AU - Luo, Fa
AU - Xu, Jie
AU - Wang, Junbo
AU - He, Xinhai
AU - Qu, Yinhu
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/4/5
Y1 - 2018/4/5
N2 - In this study, we prepared Ti3SiC2/nano Cu powders by a facile electroless plating method. XRD confirmed the successful preparation of the Ti3SiC2/nano Cu powders and SEM images showed their morphology. Then a weight ratio of 60 wt% hybrid powders with various amount of Cu were composited with epoxy resin to fabricate Ti3SiC2/nano Cu/epoxy resin absorbing coating. Electromagnetic interference (EMI) shielding and absorption properties of the coatings were investigated. As the content of nano Cu increases from 0 to 30 wt%, EMI effectiveness rises from 14 dB to 27 dB. The real and imaginary part of complex permittivity also increase with the rising Cu content. An effective absorption bandwidth is obtained in the frequency range of 9.6–12.4 GHz for the coating containing 20 wt% nano Cu with a thickness of 1.8 mm. The minimum reflection loss value is −37 dB at 11.37 GHz. The encouraging results make a contribution to exploration of absorbing coating with light weight, wide absorption bandwidth, thin thickness and high absorption efficiency.
AB - In this study, we prepared Ti3SiC2/nano Cu powders by a facile electroless plating method. XRD confirmed the successful preparation of the Ti3SiC2/nano Cu powders and SEM images showed their morphology. Then a weight ratio of 60 wt% hybrid powders with various amount of Cu were composited with epoxy resin to fabricate Ti3SiC2/nano Cu/epoxy resin absorbing coating. Electromagnetic interference (EMI) shielding and absorption properties of the coatings were investigated. As the content of nano Cu increases from 0 to 30 wt%, EMI effectiveness rises from 14 dB to 27 dB. The real and imaginary part of complex permittivity also increase with the rising Cu content. An effective absorption bandwidth is obtained in the frequency range of 9.6–12.4 GHz for the coating containing 20 wt% nano Cu with a thickness of 1.8 mm. The minimum reflection loss value is −37 dB at 11.37 GHz. The encouraging results make a contribution to exploration of absorbing coating with light weight, wide absorption bandwidth, thin thickness and high absorption efficiency.
KW - Complex permittivity
KW - Cu electromagnetic interference shielding
KW - Microwave absorption performance
KW - TiSiC/nano
UR - http://www.scopus.com/inward/record.url?scp=85039957657&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2018.01.017
DO - 10.1016/j.jallcom.2018.01.017
M3 - 文章
AN - SCOPUS:85039957657
SN - 0925-8388
VL - 740
SP - 68
EP - 76
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -