High shielding effectiveness of multilayer graphene oxide aerogel   film/polymer composites

doi:10.1039/c6ra20976a

CORC > 北京大学 > 工学院

	High shielding effectiveness of multilayer graphene oxide aerogel film/polymer composites
	Han, Dong ; Zhao, Yun-Hong ; Bai, Shu-Lin ; Ping, Wong Ching
刊名	RSC ADVANCES
	2016
关键词	ROOM-TEMPERATURE FOAM COMPOSITES NANOCOMPOSITES REDUCTION FILMS GRAPHITE BEHAVIOR GELATION
DOI	10.1039/c6ra20976a
英文摘要	In this work, an efficient and simple method is proposed to fabricate lightweight and flexible composites composed of a reduced graphene oxide aerogel film (rGO-AF) and a polydimethylsiloxane (PDMS) matrix. Their morphology, electromagnetic interference (EMI) shielding effectiveness (SE), and corresponding mechanisms are studied. The rGO-AF was obtained by a process with combinations of zinc reduction, freeze-drying, peeling and stacking. Then, single and multilayer rGO-AF/PDMS composites were fabricated by liquid PDMS infiltrating and curing. The shielding effectiveness of the composites is found to depend on the gelation time. The prepared five-layer composite with a density of 0.122 g cm(-3) and a thickness of 1.547 mm, has an SE value of 53 dB at X band (8.2-12.4 GHz), and a specific SE of up to 434 dB cm(3) g(-1). Based on the measurements on absorption and reflection shielding effectiveness, the high electromagnetic irradiation (EMI) shielding effectiveness of rGO-AF/PDMS composites is attributed to the absorption dominated shielding attenuation.; NSFC; NSFC-RGC Joint Research Scheme [11272008, 11361161001, CUHK450/13]; SCI(E); EI; ARTICLE; slbai@pku.edu.cn; 95; 92168-92174; 6
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/494827]
专题	工学院
推荐引用方式 GB/T 7714	Han, Dong,Zhao, Yun-Hong,Bai, Shu-Lin,et al. High shielding effectiveness of multilayer graphene oxide aerogel film/polymer composites[J]. RSC ADVANCES,2016.
APA	Han, Dong,Zhao, Yun-Hong,Bai, Shu-Lin,&Ping, Wong Ching.(2016).High shielding effectiveness of multilayer graphene oxide aerogel film/polymer composites.RSC ADVANCES.
MLA	Han, Dong,et al."High shielding effectiveness of multilayer graphene oxide aerogel film/polymer composites".RSC ADVANCES (2016).