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| 聚四氟乙烯纤维辐照接枝制备弱酸性离子交换剂及其对Cu~(2+)的吸附 | |
| 引用本文： | 张政朴,王志鹏,吴强,张宝贵,张砚耕. 聚四氟乙烯纤维辐照接枝制备弱酸性离子交换剂及其对Cu~(2+)的吸附[J]. 高分子学报, 2004, 0(1): 84-87 |
| 作者姓名： | 张政朴 王志鹏 吴强 张宝贵 张砚耕 |
| 作者单位： | 1. 南开大学吸附分离功能高分子材料国家重点实验室,天津,300071 2. 南开大学环境科学院,天津,300071 3. 天津市技术物理研究所,天津,300192 |
| 摘 要： | 以聚四氟乙烯纤维为基体通过6 0 Co辐射引发与丙烯酸接枝制备弱酸性阳离子交换纤维 .产物功能基含量为 3 0 6mmol g,在pH =5时该纤维达到对Cu2 + 的最大动态吸附量为 10 7 4 8mg g.使用不同浓度HCl对饱和吸附铜的接枝纤维进行洗脱 ,证实该纤维对铜离子具有优异的解吸性能 |
| 关 键 词： | 聚四氟乙烯 辐照接枝 离子交换纤维 铜离子 |
| 修稿时间： | 2003-01-28 |
THE APPLICATION OF POLYTETRAFLUOROETHYLENE FIBER GRAFTED BY ACRYLIC ACID AS A CATION EXCHANGER FOR REMOVING Cu2+ |
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| ZHANG Zhengpu ,WANG Zhipeng ,WU Qiang ,ZHANG Baogui ,ZHANG Yaneng. THE APPLICATION OF POLYTETRAFLUOROETHYLENE FIBER GRAFTED BY ACRYLIC ACID AS A CATION EXCHANGER FOR REMOVING Cu2+[J]. Acta Polymerica Sinica, 2004, 0(1): 84-87 | |
| Authors: | ZHANG Zhengpu WANG Zhipeng WU Qiang ZHANG Baogui ZHANG Yaneng |
| Affiliation: | ZHANG Zhengpu 1,WANG Zhipeng 1,WU Qiang 1,ZHANG Baogui 2,ZHANG Yaneng 3 |
| Abstract: | A novel cation exchanger fiber was prepared by irradiating grafting of acrylic acid at the surface of PTFE fibers.The novel cation exchanger fiber no t only has the advantages as a commercial cation exchanger fiber,but also has go od corrosion resistance.It was found that the pH titration curve of the grafted PTFE fiber showed a sudden jump from pH=6 to 10, which was different fr om the behavior of a typical commercial weakly acid exchanger.This novel grafte d PTFE fiber was used t o remove Cu 2+ at different pH conditions.The best pH values for the Cu 2+ adsorp tion are at 3～5.The highest adsorption capacity for Cu 2+ is 107 48?mg/ g,when the pH value is 5.The Cu 2+ ions can be desorbed completely by dilut e HCl solutions. |
| Keywords: | Polytetrafluoroethylene(PTFE) fiber Irradiating g rafting Acrylic acid Cu 2+ adsorption |
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