| 羟乙基甲壳素水溶液的流变性能研究 |
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| 引用本文： | 赵育,陈国华,晋治涛,高从堦. 羟乙基甲壳素水溶液的流变性能研究[J]. 北京化工大学学报(自然科学版), 2004, 31(5): 22-25 |
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| 作者姓名： | 赵育 陈国华 晋治涛 高从堦 |
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| 作者单位： | 中国海洋大学化学与化工学院,山东,青岛,266003;国家海洋局水处理技术开发中心,浙江,杭州,310012 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 质量分数为1.0 %～2.8%的羟乙基甲壳素水溶液为剪切变稀的假塑性流体,流动曲线符合幂律定律,利用多元线性回归方法对实验数据进行处理,获得恒定温度下稠度因数和非牛顿指数的经验关系式。在 25℃～45℃温度范围,求出不同质量分数的溶液的流动活化能为4～16kJ/mol,得出黏流活化能与质量分数的经验关系式。用“剪切静置法”研究了pH值和加入不同价态的电解质对溶液的触变性的影响,均表现出正触变性。
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| 关 键 词： | 羟乙基甲壳素 流变性能 触变性 |
| 收稿时间： | 2003-10-10 |
| 修稿时间： | 2003-10-10 |
Rheological property of glycolchitin agueous solution |
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| Zhao Yu Chen Guo-hua Jin Zhi-tao Gao Cong-jie. Rheological property of glycolchitin agueous solution[J]. Journal of Beijing University of Chemical Technology, 2004, 31(5): 22-25 |
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| Authors: | Zhao Yu Chen Guo-hua Jin Zhi-tao Gao Cong-jie |
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| Affiliation: | 1.College of Chemistry and Chemical Engineering; the Ocean University of China; Qingdao Shandong 266003; China; 2.Development Center of Water Treatment Techology; SOA; Hangzhou Zhejiang 310012; China |
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| Abstract: | The factors influencing the rheological property of glycolchitin aqueous solution were studied at different mass percentages (1%～2.8%)and the different temperature(25℃～45℃). The results show that it is a pseudoplastic fluid and its flowing behaviour is coincided with the power-law. A semi-experimental equation for Ki and n at a constant temperature was obtaind by the multiple variable regression of the experimental data. The activity energy decreased with the increase in the concentration. The result of the thixotropic experiment of series PH values of glychochitin solution shows they are positive thixotropic liquids.series of solutions added into different amout of inorganic salt show a positive thixotropic behaviour too. |
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| Keywords: | glycolchitin rheological property thixotropy |
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