Fabrication of lightweight, flexible polyetherimide/nickel composite foam with electromagnetic interference shielding effectiveness reaching 103 dB

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2014专题

	Fabrication of lightweight, flexible polyetherimide/nickel composite foam with electromagnetic interference shielding effectiveness reaching 103 dB
	Zhai, Wentao ; Chen, Yuejuan ; Ling, Jianqiang ; Wen, Bianying ; Kim, Young-Wook
刊名	JOURNAL OF CELLULAR PLASTICS
	2014
卷号	50 期号:6 页码:537
中文摘要	The preparation of lightweight materials with electromagnetic interference-shielding effectiveness higher than 30dB is critical for most industrial and consumer applications. Compounding polymer resin with conductive filler can generate excellent electromagnetic interference-shielding effectiveness but usually leads to a high-sample density, while the foaming of polymer composite suffers from the significant-reduced electromagnetic interference-shielding effectiveness. In this study, polyetherimide composite foams with loading of 10-80phr (parts per hundred of resins) nickel particles were fabricated to meet the gap. The polyetherimide/nickel composite foams possessed uniform cell structure and low-sample density such as 0.86g/cm(3) at 70phr nickel. The coupling effects of gravity settlement and cell-structure solidification led to the formation of gradient distribution of nickel particles across the foams. The formed novel structure facilitated the enhancement of multi-reflection and multi-scattering among nickel particles and cells. As a consequence, polyetherimide/nickel foam with 70phr nickel (PEIN70) possessed a high-electromagnetic interference shielding effectiveness of 86.7-106.5dB over a frequency range of 50-3000 MHz. When the sample density was considered, the specific electromagnetic interference shielding effectiveness of PEIN70 foam was as high as 121.3dB/(g/cm(3)) at 1GHz, which was higher than the reported electromagnetic interference-shielding materials. The excellent electromagnetic interference-shielding properties, lightweight, well-defined resin properties ensure polyetherimide/nickel composite foams useful in many advanced applications.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11704]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Zhai, Wentao,Chen, Yuejuan,Ling, Jianqiang,et al. Fabrication of lightweight, flexible polyetherimide/nickel composite foam with electromagnetic interference shielding effectiveness reaching 103 dB[J]. JOURNAL OF CELLULAR PLASTICS,2014,50(6):537.
APA	Zhai, Wentao,Chen, Yuejuan,Ling, Jianqiang,Wen, Bianying,&Kim, Young-Wook.(2014).Fabrication of lightweight, flexible polyetherimide/nickel composite foam with electromagnetic interference shielding effectiveness reaching 103 dB.JOURNAL OF CELLULAR PLASTICS,50(6),537.
MLA	Zhai, Wentao,et al."Fabrication of lightweight, flexible polyetherimide/nickel composite foam with electromagnetic interference shielding effectiveness reaching 103 dB".JOURNAL OF CELLULAR PLASTICS 50.6(2014):537.