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| Variations in surface and electrical properties of polytetrafluoroethylene film after plasma-induced grafting of acrylic acid | |
| Li, R; He, XZ; Gao, QH; Pang, LJ; Wang, HL; Hu, JT; Xing, Z; Wu, GZ; 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. | |
| 2016 | |
| 发表期刊 | NUCLEAR SCIENCE AND TECHNIQUES
 |
| ISSN | 1001-8042 |
| 卷号 | 27期号:3页码:- |
| 文章类型 | 期刊论文 |
| 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. |
| 关键词 | Polytetrafluoroethylene Film Low Temperature Plasma Acrylic Acid Hydrophilicity Electrical Properties |
| DOI | 10.1007/s41365-016-0075-9 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000380038900013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.sinap.ac.cn/handle/331007/26676 |
| 专题 | 中科院上海应用物理研究所2011-2018年 |
| 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. |
| 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):-. |
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