| 强酸型阳离子交换纤维的直接法制备 |
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| 引用本文： | 冯长根,杨海燕,曾庆轩. 强酸型阳离子交换纤维的直接法制备[J]. 化工学报, 2004, 55(11): 1884-1888 |
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| 作者姓名： | 冯长根 杨海燕 曾庆轩 |
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| 作者单位： | 北京理工大学爆炸灾害预防与控制国家重点实验室,北京,100081;北京理工大学爆炸灾害预防与控制国家重点实验室,北京,100081;北京理工大学爆炸灾害预防与控制国家重点实验室,北京,100081 |
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| 基金项目： | 国家高技术研究发展计划子课题(No 2 0 0 2AA2 45 0 91)~~ |
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| 摘 要： | 聚乙烯醇（PVA）纤维直接脱水反应形成多烯化纤维，随后磺化处理制得盐解交换容量达2～3.2mmol•g-1的强酸型阳离子交换纤维.讨论了脱水剂、加热温度与气氛对脱水反应的影响以及脱水率、磺化温度及时间对产品盐解交换容量的影响.IR分析表明脱水纤维出现共轭C=C双键的伸缩振动吸收峰，产品在1200 cm-1、1040 cm-1处出现了S=O键和C=S键的伸缩振动吸收峰.电子衍射结果表明脱水反应施加张紧力能使纤维保持类晶结构.
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| 关 键 词： | 聚乙烯醇 强酸离子交换纤维 制备 |
| 文章编号： | 0438-1157(2004)10-1884-05 |
| 收稿时间： | 2003-08-28 |
| 修稿时间： | 2003-11-5 |
PREPARATION OF STRONG ACIDIC CATIONAL EXCHANGE FIBER |
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| FENG Changgen,YANG Haiyan,ZENG Qingxuan. PREPARATION OF STRONG ACIDIC CATIONAL EXCHANGE FIBER[J]. Journal of Chemical Industry and Engineering(China), 2004, 55(11): 1884-1888 |
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| Authors: | FENG Changgen YANG Haiyan ZENG Qingxuan |
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| Abstract: | The strong acidic ion exchange fibers with higher exchange capacities up to 3.2 mmol•g-1 were prepared by the dehydration reaction of polyvinyl alcohol(PVA)fiber followed by sulfonation.The paper studied the effects of dehydrating catalyst，temperature,and atmosphere on dehydration reaction and the effects of mass loss, temperature and time of sulfonation on exchange capacities.The IR spectra showed that the dehydrated fiber exhibited the absorption peak of carbon double bond.There were absorption peaks of S=O and C=S in the IR spectra of the product.The spectrogram of electron diffraction indicated that the fiber could keep its crystalloid structure by drawing tension. |
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| Keywords: | polyvinyl alcohol strong acidic ion exchange fibers preparation |
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