| Effect of Carboxymethyl Starch as Stabilizer for Increasing the Stability of Warp Sizing Pastes |
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| 作者姓名： | 祝志峰 梁茵 |
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| 作者单位： | The National Test Center for Warp Sizing，College of Textiles and Garments，Southern Yangtze University，Wuxi 214063，College of Chemistry and Molecular Science，Wuhan University，Wuhan 430072 |
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| 基金项目： | It was financially supported by Science Research Foundation of Southern Yangtze University |
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| 摘 要： | The influences of carboxymethyl starch used as stabilizer upon the stability of native cornstarch-polyvinyl alcohol blend pastes for warp sizing have been investigated. The effect of the modified starch on the paste stability was evaluated in terms of the initial demixing time and the volume percentage of separated starch. The carboxymethyl starch with a series of different degrees of substitution was prepared in ethanol dispersion by varying the amount of monochloroacetic acid reacted with refined native cornstarch. The paste stability strongly depends on the modification extent and amount of carboxymethyl starch used, and on native starch content in the paste. Increase in the modification extent and/or the amount of the modified starch effectively retards the phase separation and reduces the separation extent of native cornstarch-polyvinyl alcohol blend pastes. Moreover, the mechanism and favorable modification extent of carboxymethyl starch for enhancing paste stability are also investigated and disc
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Effect of Carboxymethyl Starch as Stabilizer for Increasing the Stability of Warp Sizing Pastes |
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| ZHU Zhi-feng The National Test Center for Warp Sizing,College of Textiles and Garments,Southern Yangtze University,Wuxi LIANG Yin College of Chemistry and Molecular Science,Wuhan University,Wuhan.Effect of Carboxymethyl Starch as Stabilizer for Increasing the Stability of Warp Sizing Pastes[J].Journal of Donghua University,2003,20(2). |
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| Authors: | ZHU Zhi-feng The National Test Center for Warp Sizing College of Textiles and Garments Southern Yangtze University Wuxi LIANG Yin College of Chemistry and Molecular Science Wuhan University Wuhan |
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| Institution: | 1. The National Test Center for Warp Sizing, College of Textiles and Garments, Southern Yangtze University, Wuxi 214063
2. College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072 |
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| Abstract: | The influences of carboxymethyl starch used as stabilizer upon the stability of native cornstarch-polyvinyl alcohol blend pastes for warp sizing have been investigated. The effect of the modified starch on the paste stability was evaluated in terms of the initial demixing time and the volume percentage of separated starch. The carboxymethyl starch with a series of different degrees of substitution was prepared in ethanol dispersion by varying the amount of monochloroacetic acid reacted with refined native cornstarch. The paste stability strongly depends on the modification extent and amount of carboxymethyl starch used, and on native starch content in the paste. Increase in the modification extent and/or the amount of the modified starch effectively retards the phase separation and reduces the separation extent of native cornstarch-polyvinyl alcohol blend pastes. Moreover, the mechanism and favorable modification extent of carboxymethyl starch for enhancing paste stability are also investigated and discussed. |
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| Keywords: | warp sizes paste stability carboxymethyl starch polyvinyl alcohol starch |
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