Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid

doi:10.1007/s41365-016-0075-9

	Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid
	Li, Rong 1; He, Xin-Zhong 1,2; Gao, Qian-Hong 1,2; Pang, Li-Juan 1,2; Wang, Hong-Long 1,2; Hu, Jiang-Tao 1; Xing, Zhe 1; Wu, Guo-Zhong1,3
	2016-06
发表期刊	NUCLEAR SCIENCE AND TECHNIQUES (IF:3.6[JCR-2023],2.4[5-Year])
ISSN	1001-8042
卷号	27 期号:3
发表状态	已发表
DOI	10.1007/s41365-016-0075-9
摘要	Polytetrafluoroethylene (PTFE) film was graft-polymerized with acrylic acid (AAc) via a low-temperature plasma technique. The effect of plasma treatment parameters (radio-frequency power and treatment time) on the spin number of free radicals in PTFE film was examined. Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy were employed to characterize the chemical structure, surface composition, and microstructure of the original PTFE and PTFE-g-PAAc films, respectively, in order to verify the successful graft polymerization of AAc onto a PTFE film surface. Thermogravimetric analysis illustrated that the thermal stability of bulk PTFE film remains unchanged after graft modification. Water contact angle measurements confirmed that the hydrophilicity of PTFE-g-PAAc film was effectively improved as compared to the original PTFE film. The dielectric constant (epsilon(r)) of PTFE-g-PAAc (GD = 218 mu g/cm(2)) film remained invariable, compared to that of the unmodified PTFE film. Nevertheless, the dielectric loss (tan delta) of PTFE film increased considerably, from 0.0002 (GD = 0 mu g/cm(2)) to 0.0073 (GD = 218 mu g/cm(2)), which might be due to the increase in surface polarity and moisture resulting from AAc graft modification. In addition, the surface electrical resistance (R-s) of PTFE film decreased slightly, from 131.89 (GD = 0 mu g/cm(2)) to 110.28 Omega cm(2) (GD = 218 mu g/cm(2)) after surface modification, but still retained its inherent high impedance.
关键词	Polytetrafluoroethylene film Low temperature plasma Acrylic acid Hydrophilicity Electrical properties
收录类别	SCI ; EI
语种	英语
资助项目	National Natural Science Foundation of China[11275252] ; National Natural Science Foundation of China[11305243]
WOS研究方向	Nuclear Science & Technology ; Physics
WOS类目	Nuclear Science & Technology ; Physics, Nuclear
WOS记录号	WOS:000380038900013
出版者	SPRINGER SINGAPORE PTE LTD
WOS关键词	POLY(TETRAFLUOROETHYLENE) FILMS ; ADHESION IMPROVEMENT ; COPOLYMERIZATION ; POLYMERIZATION ; METHACRYLATE ; MEMBRANE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1811
专题	物质科学与技术学院_特聘教授组_吴国忠组
通讯作者	Wu, Guo-Zhong
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Li, Rong,He, Xin-Zhong,Gao, Qian-Hong,et al. Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid[J]. NUCLEAR SCIENCE AND TECHNIQUES,2016,27(3).
APA	Li, Rong.,He, Xin-Zhong.,Gao, Qian-Hong.,Pang, Li-Juan.,Wang, Hong-Long.,...&Wu, Guo-Zhong.(2016).Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid.NUCLEAR SCIENCE AND TECHNIQUES,27(3).
MLA	Li, Rong,et al."Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid".NUCLEAR SCIENCE AND TECHNIQUES 27.3(2016).