Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid
文献类型：期刊论文
| 作者 | Li, R; He, XZ; Gao, QH; Pang, LJ; Wang, HL; Hu, JT; Xing, Z; Wu, GZ |
| 刊名 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| 出版日期 | 2016 |
| 卷号 | 27期号:3页码:- |
| 关键词 | Polytetrafluoroethylene film Low temperature plasma Acrylic acid Hydrophilicity Electrical properties |
| ISSN号 | 1001-8042 |
| 通讯作者 | Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. ; Wu, GZ (reprint author), Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China. |
| 英文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000380038900013 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26676]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Li, R,He, XZ,Gao, QH,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, R.,He, XZ.,Gao, QH.,Pang, LJ.,Wang, HL.,...&Wu, GZ.(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, R,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):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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