| 用木屑制备羧甲基纤维素 |
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| 引用本文： | 夏士朋.用木屑制备羧甲基纤维素[J].淮阴师范学院学报(自然科学版),2004,3(3):236-239. |
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| 作者姓名： | 夏士朋 |
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| 作者单位： | 淮阴师范学院,化学系,江苏,淮安,223300 |
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| 摘 要： | 研究了以木屑为原料制备羧甲基纤维素.最佳条件为:纤维素(g)∶NaOH(g)∶氯乙酸(g)=1.0∶1.1∶1.2;以85%乙醇为溶剂,碱化温度为30～35℃,时间为60～90min;醚化温度为70℃,时间为150～180min;产品的粘度大于550mPa·s,取代度大于0.65,有效成分大于85%,氯化物小于3%.
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| 关 键 词： | 木屑 制备 羧甲基纤维素(CMC) |
| 文章编号： | 1671-6876(2004)03-0236-04 |
| 修稿时间： | 2004年5月22日 |
Preparation of Carboxymethyl Cellulose from Bits of Wood |
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| XIA Shi-peng.Preparation of Carboxymethyl Cellulose from Bits of Wood[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2004,3(3):236-239. |
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| Authors: | XIA Shi-peng |
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| Abstract: | A method of preparing carboxymethyl cellulose (CMC) from bits of wood is reported. Best reaction conditions are as follows: The quality ratio among cellulose and sodium hydroxide and chloroacetic acid is 1.0:1.1:1.2;Alkalization temperature is 30～35℃ for 60～90 min and etherification temperature 70℃ for 150～180 min. with the ethanol(W(C_2H_5OH)=85%) as solvent; Viscosity of CMC is above 550 mpa.s, degree of substitution above 0.65, mass fraction of available composition above 85%,and the content of chloride below 3%. |
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| Keywords: | bits of wood preparation carboxymethyl cellulose |
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