| 常压阳离子可染聚酯熔体的流变性能研究 |
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| 引用本文： | 张天亮,甘丽华,李志鹏,李志勇,金剑,李鑫. 常压阳离子可染聚酯熔体的流变性能研究[J]. 合成纤维工业, 2021, 44(1): 6-10 |
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| 作者姓名： | 张天亮 甘丽华 李志鹏 李志勇 金剑 李鑫 |
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| 作者单位： | 北京化工大学化学工程学院 北京 100029;中国纺织科学研究院有限公司生物源纤维制造技术国家重点实验室,北京 100025 |
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| 基金项目： | 国家重点研发计划项目(2016YFB0302801)。 |
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| 摘 要： | 应用高压毛细管流变仪测试了2种常压阳离子染料可染聚酯(ECDP-1,ECDP-2)熔体的流变性能并与常规聚酯(PET)熔体的流变性能进行对比.结果表明:ECDP-1,ECDP-2与PET熔体都属于假塑性非牛顿流体,黏度随剪切速率((γ))的增大而减小;ECDP-1,ECDP-2与PET熔体的非牛顿指数都随温度的升高而增...
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| 关 键 词： | 聚对苯二甲酸乙二醇酯 常压阳离子染料可染聚酯 熔体 流变性能 假塑性流体 非牛顿指数 黏流活化能 结构黏度指数 |
Rheological properties of normal pressure easy cationic dyeable polyester melt |
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| ZHANG Tianliang,GAN Lihua,LI Zhipeng,LI Zhiyong,JIN Jian,LI Xin. Rheological properties of normal pressure easy cationic dyeable polyester melt[J]. China Synthetic Fiber Industry, 2021, 44(1): 6-10 |
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| Authors: | ZHANG Tianliang GAN Lihua LI Zhipeng LI Zhiyong JIN Jian LI Xin |
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| Affiliation: | (School of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029;State Key Laboratory of Biobased Fiber Manufacturing Technology,China Textile Academy Co.,Ltd.,Beijing 100025) |
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| Abstract: | The rheological properties of two kinds of normal pressure easy cationic dyeable polyester(ECDP-1 and ECDP-2)melts were measueed by high-pressure capillary rheometer and was compared with those of conventional polyester(PET)melt.The results showed that ECDP-1,ECDP-2 and PET melts were all pseudoplastic non-Newtonian fluids,and their viscosity decreased with the increase of the shear rate(γ);the non-Newtonian index of ECDP-1,ECDP-2 and PET melts increased with the elevation of temperature.and ECDP-1 and ECDP-2 melt exhibited the non-Newtonian behavior more obvious than PET melt;the viscous flow activation energy(ΔEη)of ECDP-1,ECDP-2 and PET melts first increased and then decreased with the increase of γ;the ΔEη of ECDP-1 and ECDP-2 melts was higher than that of PET melt in a given range of γ;the structural viscosity index(Δη)of ECDP-1,ECDP-2 and PET melts decreased with the increase of temperature;and the Δη of ECDP-1 and ECDP-2 melts was higher than that of PET melts,which indicated that ECDP-1 and ECDP-2 melts were more structured than PET melt. |
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| Keywords: | polyethylene terephthalate normal pressure easy cationic dyeable polyester melt rheological property pseudoplastic fluid non-Newtonian index viscous flow activation energy structural viscosity index |
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