Preparation of High Hydrophilic PTFE Powder and Its Dispersion Stability
文献类型：期刊论文
| 作者 | Li, H; Zeng, HY; Xing, Z; Li, R; Gao, QH; Wang, HL; Wu, GZ |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2016 |
| 期号 | 9页码:1247-1253 |
| 关键词 | PTFE Acrylic acid 2-Acrylamide-2-methylpropanesulfonic acid Hydrophilic Pre-irradiation grafting |
| ISSN号 | 1000-3304 |
| 通讯作者 | Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. |
| 英文摘要 | Acrylic acid (AAc) and 2-acrylamide-2-methylpropanesulfonic acid (AMPS) were successfully grafted on polyterafluoroethylene (PTFE) powder by the fact that gamma-ray radiation induced graft coploymerization for preparation of high hydrophilic PTFE powder. The chemical structure and hydrophilicity of the grafted PTFE powder were characterized by Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectroscopy (XPS) and contact angle (CA) test. The surface morphology of the grafted PTFE powder was observed through scanning electron microscope (SEM). The electric potential of the grafted PTFE powder dispersion was determined by zeta potential test. The thermal stability of the grafted PTFE powder was analyzed by thermogravimetric analysis (TGA). It was found that the hydrophilicity and dispersion stability of modified PTFE powder was significantly improved with increasing grafting yield of AAc and AMPS. The PTFE powder with a grafting yield of 26. 6% can be stably dispersed in water for a long period, which was prepared in the solution with the monomer concerntration of 20% and the AAc/AMPS ratio of 2 at 70 degrees C. Water contact angle of the PTFE powder decreased from 148. 8 degrees before grafting to 30. 2 degrees after grafting. Simultaneously, the corresponding zeta potential of PTFE dispersion decreased from -4. 3 mV to -83. 4 mV. |
| 收录类别 | SCI |
| 语种 | 中文 |
| WOS记录号 | WOS:000384870700011 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26603]  |
| 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, H,Zeng, HY,Xing, Z,et al. Preparation of High Hydrophilic PTFE Powder and Its Dispersion Stability[J]. ACTA POLYMERICA SINICA,2016(9):1247-1253. |
| APA | Li, H.,Zeng, HY.,Xing, Z.,Li, R.,Gao, QH.,...&Wu, GZ.(2016).Preparation of High Hydrophilic PTFE Powder and Its Dispersion Stability.ACTA POLYMERICA SINICA(9),1247-1253. |
| MLA | Li, H,et al."Preparation of High Hydrophilic PTFE Powder and Its Dispersion Stability".ACTA POLYMERICA SINICA .9(2016):1247-1253. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。