| 羧甲基玉米淀粉合成过程的优化 |
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| 引用本文： | 王华,谭艳君,李超,马佳利. 羧甲基玉米淀粉合成过程的优化[J]. 西安工程科技学院学报, 2014, 0(2): 155-159 |
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| 作者姓名： | 王华 谭艳君 李超 马佳利 |
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| 作者单位： | 西安工程大学纺织与材料学院; |
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| 基金项目： | 陕西省教育厅重点实验室科研计划项目(13JS034) |
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| 摘 要： | 以乙醇溶液为介质，分析乙醇浓度、乙醇用量、反应温度、反应时间、nNaOH/nAGU 、nMCA/nAGU等因素对羧甲基玉米淀粉取代度的影响．通过Box-Behnken实验设计和SAS确定羧甲基玉米淀粉合成的最佳反应条件：乙醇浓度93.5％、反应温度60℃、反应时间265min、nNaOH/nAGU ＝2.6、nMCA/nAGU ＝1.25，在此条件下合成的羧甲基玉米淀粉的取代度为0.914、原糊质量分数为4％时的黏度为6590mPa· s ．
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| 关 键 词： | 玉米淀粉 羧甲基化 过程优化 取代度 |
The optimization of carboxymethyl corn starch synthesis process |
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| WANG Hua,TAN Yan-jun,LI Chao,MA Jia-li. The optimization of carboxymethyl corn starch synthesis process[J]. Journal of Xi an University of Engineering Science and Technology, 2014, 0(2): 155-159 |
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| Authors: | WANG Hua TAN Yan-jun LI Chao MA Jia-li |
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| Affiliation: | (School of Textile and Materials, Xi＇an Polytechnic University, Xi＇an 710048, China) |
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| Abstract: | Using ethanal as medium ,the effects of ethanol concentration ,ethanol dosage ,reaction tem-perature ,reaction time ,nNaOH/nAGU ,nMCA/nAGU and other factors on the substitution degree of carboxym-ethyl corn starch was studied .And according to Box-Behnken experimental design and SAS ,the optimal reaction conditions on carboxymethyl corn starch synthesis was determined ：ethanol concentration of 93.5% ,reaction temperature of 60℃ ,reaction time of 265 min ,nNaOH/nAGU of=2.6 ,nMCA/nAGU =1.25 . And under this condition ,carboxymethyl corn starch with the substitution degree of 0 .914 can be made , and w hile the mass fraction of original paste is 4% ,the viscosity of original paste is 6 590mPa ＆#183; s . |
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| Keywords: | corn starch carboxymethyl process optimization degree of substitute |
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