| Non-Isothermal Crystallization Kinetics of PET Under Solid State Poly condensation |
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| 作者姓名： | Zhou Weihua and Li Liqing |
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| 作者单位： | Zhou Weihua and Li Liqing (Department of Fiberic Materials，Beijing Institute of Clothing Technology，Beijing)Tang Xinyi (Department of Chemistry，Jilin University，Changchun) |
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| 摘 要： | An equation of non-isothermal crystallization kinetics was derived according to a new model and the crystallizations of both the PET samples under solid state polycon-densation and the pre-orientation yarn of high speeding spinning PET were studied with this equation. The results show that there is a good linear relationship between In {-In1-X(T)]} and lnΦ. The index m in the equation approximately equals to 3 for PET chips and 1. 3 for pre-orientated yarn. At the same temperature, Q(T) decreases with the increase of PET M. W. and the kinetics parameters obtained by Jeziorny' s method indicate that G also decreases with the increase of PET M. W.. Q(T) and Gc show the same varying tendency in the non-isothermal crystallization process.
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Non-Isothermal Crystallization Kinetics of PET Under Solid State Poly condensation |
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| Zhou Weihua and Li Liqing.Non-Isothermal Crystallization Kinetics of PET Under Solid State Poly condensation[J].Chemical Research in Chinese University,1991(4). |
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| Authors: | Zhou Weihua and Li Liqing |
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| Abstract: | |
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| Keywords: | Non-isothermal crystallization Kinetics PET |
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