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| 废纸制备羧甲基纤维素的研究 | |
| 引用本文： | 王新平,张艳红,李伟,蔡悦,赵景联. 废纸制备羧甲基纤维素的研究[J]. 应用化工, 2004, 33(2): 52-54 |
| 作者姓名： | 王新平 张艳红 李伟 蔡悦 赵景联 |
| 作者单位： | 1. 西安交通大学,环境与化学工程学院,陕西,西安,710049 2. 陕西省医药工业研究所,陕西,西安,710032 3. 陕西省石油化工研究设计院,陕西,西安,710054 |
| 摘 要： | 以废纸为原料制备羧甲基纤维素(CMC),探讨了分散剂组成、碱化温度、时间、碱用量和醚化剂用量、醚化温度、时间对产品粘度的影响。结果表明,当废纸、氢氧化钠和醚化剂的质量比为1 0∶0 9∶1 2,以85%的乙醇水溶液为分散剂,35℃碱化90min,75℃醚化150min时,生成的CMC质量最好,取代度>0.6,有效成分>85%,水分<10%,氯化物<4%,其2%水溶液的粘度>500mPa·s。 |
| 关 键 词： | 羧甲基纤维素钠 废纸 制备 |
| 文章编号： | 1671-3206(2004)02-0052-02 |
| 修稿时间： | 2003-10-29 |
Research on preparation of carboxymethyl cellulose with wastepaper |
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| WANG Xin-ping,ZHANG Yan-hong,LI Wei,CAI Yue,ZHAO Jing-lian. Research on preparation of carboxymethyl cellulose with wastepaper[J]. Applied chemical industry, 2004, 33(2): 52-54 | |
| Authors: | WANG Xin-ping ZHANG Yan-hong LI Wei CAI Yue ZHAO Jing-lian |
| Affiliation: | WANG Xin-ping~,ZHANG Yan-hong~2,LI Wei~3,CAI Yue~3,ZHAO Jing-lian~1 |
| Abstract: | The carboxymethyl cellulose(CMC) is prepared by wastepaper as raw material.The effect of composition of dispersant,alkalization temperature,time,the usage of base and chloroacetic acid,etherification temperature,etc. on viscosity of product are discussed.The results showed that when the 85% ethanol was used as dispersant,the wastepaper was alkalified at 35 ℃ for 90 min,and etherified at 75 ℃ for 150 min and the mass ratio of wastepaper to sodium hydroxide to chloroacetic acid was 1.0∶(0.9)∶1.2,the best quality of CMC product was obtained.Therein,the degree of substitution was >0.6,the mass fraction of available composition was >85%,the moisture was <10% and chloride was <4%,the viscosity of 2% CMC solution was above 500 mPa·s. |
| Keywords: | carboxymethyl cellulose wastepaper preparation |
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