| 氢氧化二乙二胺合镉(Ⅱ)溶液对纤维素纤维的溶解性能 |
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| 引用本文： | 韩其亮,吴政.氢氧化二乙二胺合镉(Ⅱ)溶液对纤维素纤维的溶解性能[J].北京服装学院学报,2009,29(4). |
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| 作者姓名： | 韩其亮 吴政 |
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| 作者单位： | 北京服装学院材料科学与工程学院,北京,100029;北京服装学院材料科学与工程学院,北京,100029;北京市服装材料研究开发与评价重点实验室,北京,100029 |
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| 基金项目： | 北京市科技教育委员会科技计划面上项目 |
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| 摘 要： | 选择氢氧化二乙二胺合镉(Ⅱ)为溶剂,测试了7种不同种类纤维在该溶液中的溶解度,为溶解法鉴别纤维素纤维提供基础数据. 改变溶液的浓度及温度,测试纤维素纤维的溶解度变化情况;用可见分光光度计测溶解前后溶液的透射率,根据透射率的变化,推断纤维及溶液中化学键的变化. 研究结果表明:溶液浓度越大,对纤维的溶解能力越强. 随着温度的升高,纤维在溶液中的溶解度逐渐增大;当达到一定温度后,溶解度又逐渐降低;当温度升高到一定值时,溶液分解,失去了对纤维的溶解能力.纤维的溶解机理为:纤维素纤维分子间氢键断裂,且有新的化学键生成.
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| 关 键 词： | 纤维素纤维 溶解度 溶解机理 |
Dissolubility of Cellulosic Fibers in Solution[Cd(NH_2CH_2CH_2NH_2)](OH)_2 |
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| HAN Qi-liang,WU Zheng.Dissolubility of Cellulosic Fibers in Solution[Cd(NH_2CH_2CH_2NH_2)](OH)_2[J].Journal of Beijing Institute of Clothing Technology(Nature Science Edition),2009,29(4). |
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| Authors: | HAN Qi-liang WU Zheng |
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| Affiliation: | HAN Qi-liang1,WU Zheng1,2(1.School of Materials Science , Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China,2.Beijing Key Laboratory of Clothing Materials R&D , Assement,China) |
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| Abstract: | The solubility of seven kinds of cellulosic fibers in solution Cd(NH2CH2CH2NH2)](OH)2 were investigated in order to get basic data for identification of fibers.By changing the concentration and temperature of solution,the solubility of solutions was tested.And the changes of solution's transmissivity before and after the solution were measured with ultraviolet-visible spectrophotometer.Results showed that the solubility of fibers in solution Cd(NH2CH2CH2NH2)](OH)2 increased with the increase of the concen... |
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| Keywords: | cellulosic fibers solubility dissolution mechanism |
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