| PET/PTT共混体系的非等温结晶动力学研究 |
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| 引用本文： | 肖雪春,李文刚,黄象安.PET/PTT共混体系的非等温结晶动力学研究[J].合成纤维,2005,34(11):10-14. |
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| 作者姓名： | 肖雪春 李文刚 黄象安 |
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| 作者单位： | 云南大学材料科学与工程系,云南,昆明,650091;东华大学纤维材料改性国家重点实验室,上海,200051 |
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| 摘 要： | 采用DSC方法研究了PET/PTT共混体系的非等温结晶动力学,研究发现:PET/PTT共混体系各样品的结晶峰温度和半结晶时间t1/2随着冷却速率的提高而下降;结晶动力学常数Zc随着冷却速率的提高而增加,表明共混体系的结晶速率随着冷却速率的提高而增大;Zc随着PTT含量的增加而逐渐减小,在其含量达40%￣50%时出现了最小值。
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| 关 键 词： | PET PTT 共混 非等温结晶动力学 |
| 文章编号： | 1001-7054(2005)11-0010-05 |
| 收稿时间： | 2005-05-11 |
| 修稿时间： | 2005年5月11日 |
Study on the Non-isothermal Crystallization Kinetics of PET/PTT Blends |
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| XIAO Xue-chun,LI Wen-gang,HUANG Xiang-an.Study on the Non-isothermal Crystallization Kinetics of PET/PTT Blends[J].Synthetic Fiber in China,2005,34(11):10-14. |
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| Authors: | XIAO Xue-chun LI Wen-gang HUANG Xiang-an |
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| Abstract: | The non-isothermal crystallization kinetics of PET/PTT blends were studied by using differential scanning calorimetry(DSC). The study showed that the value of Tc(the temperature corresponding to the exothermic peak) and the half-time of crystallization (t1/2) decreased with the cooling rate increasing, the kinetic constant of crystallization(Z c) increased with the cooling rate increasing. It was also found that the crystallization rate of the blends increased with the cooling rate increasing. Zc decreased gradually with the content of PTT increasing, and appeared the minimum value while the content of PTT was from 40 to 50 percent. |
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| Keywords: | polyethylene terephthalate(PET) polytrimethylene terephthalate(PTT) blend non-isothermal crystallization kinetics |
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