| 水合肼对纤维素溶解稳定性的影响 |
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| 引用本文： | 吴海真,张红.水合肼对纤维素溶解稳定性的影响[J].渭南师范学院学报,2014,29(19):26-29. |
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| 作者姓名： | 吴海真 张红 |
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| 作者单位： | 渭南师范学院 化学与生命科学学院,陕西渭南,714099 |
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| 基金项目： | 渭南师范学院研究生专项科研项目:负载金催化剂制备和催化活性 |
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| 摘 要： | 以脱脂棉为原料，用氢氧化钠、尿素、硫脲体系作为溶剂，对纤维素进行溶解，然后加入水合肼，对纤维素羟基进行破坏，使纤维素降解．主要通过研究水合肼用量、反应温度、反应时间对纤维素溶解体系粘度的影响，从而判断水合肼对纤维素溶解稳定性的影响．当棉花质量：水合肼体积=10：7、反应温度15℃、反应时间2h时，△η最大，对纤维素溶解体系稳定性破坏最大．
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| 关 键 词： | 纤维素 水解 水合肼 |
Effect of Hydrazine on Cellulose Dissolution Stability |
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| WU Hai-zhen,ZHANG Hong.Effect of Hydrazine on Cellulose Dissolution Stability[J].Journal of Weinan Teachers College,2014,29(19):26-29. |
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| Authors: | WU Hai-zhen ZHANG Hong |
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| Institution: | (School of Chemistry and Life Science, Weinan Normal University, Weinan 714099, China) |
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| Abstract: | The absorbent cotton was used as raw material, using sodium hydroxide, urea and thiourea system was as a solvent, to dissolve cellulose. Then hydrazine hydrate was added into the solution for degradation of cellulose. In order to judge the hydrazine hydrate dissolution stability of cellulose, the dosage of hydrazine hydrate, reaction temperature, reaction time, the viscosity of cellu- lose dissolution system was studied. When the cellulose to hydrazine hydrate was equal to seven to ten, reaction temperature was fif- teen degrees centigrade, reaction time was two hours and viscosity value was shifted largely. And the cellulose dissolution stability was damaged largely. |
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| Keywords: | cellulose stability hydrazine hydrate |
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