| 用玉米秸秆制备羧甲基纤维素 |
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| 引用本文： | 李莉,刘瑛.用玉米秸秆制备羧甲基纤维素[J].精细化工,2001,18(6):339-340. |
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| 作者姓名： | 李莉 刘瑛 |
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| 作者单位： | 沈阳工业学院化工分院, |
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| 摘 要： | 玉米秸秆为原料制备羧甲基纤维素 (CMC) ,最佳条件为 :m (纤维素 )∶m (NaOH)∶m(ClCH2 COOH) =1 0∶1 0∶1 2 ,以w (C2 H5OH) =85 %的酒精为溶剂 ,碱化温度 30℃ ,时间 6 0min ,醚化温度 70℃ ,时间 15 0min ,产品黏度 40 0～ 6 0 0mPa·s,取代度 0 6～ 0 7,有效成分质量分数 >80 %
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| 关 键 词： | 羧甲基纤维素 玉米秸秆 制备 |
| 文章编号： | 1003-5214(2001)06-0339-02 |
Preparation of Carboxymethyl Cellulose from Straw of Mealie |
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| LI Li,LIU Ying.Preparation of Carboxymethyl Cellulose from Straw of Mealie[J].Fine Chemicals,2001,18(6):339-340. |
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| Authors: | LI Li LIU Ying |
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| Abstract: | In this article,we report a method of praparing carboxymethyl cellulose (CMC) form straw of mealie and got the best reaction conditions.The weight ratio of cellulose to sodium hydroxide to chloroacetic acid was 1.0∶1.0∶1.2.Cellulose was alkalified at 30 ℃ for 60 min and etherified at 70 ℃ for 150 min in 85% ethanol.Viscosity of CMC was 400 to 600 mPa*s.Degree of substitution was 0.6 to 0.7 and mass fraction of available composition was >80%. |
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| Keywords: | carboxymethyl cellulose straw of mealie preparation |
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