| PET共聚酯结晶性能的研究 |
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| 引用本文： | 刘佑习,安军.PET共聚酯结晶性能的研究[J].高分子材料科学与工程,1994,10(4):79-84. |
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| 作者姓名： | 刘佑习 安军 |
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| 作者单位： | 中山大学高分子研究所，巴陵石化公司 |
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| 摘 要： | 用ＤＳＣ，广角Ｘ射线衍射等方法研究了ＰＥＴ共聚酯的结晶行为，并与纯ＰＥＴ体系作了比较。以冷结晶峰温，等温结晶半周期ｔ１／２及结晶度等来表征它们的性能。结晶表明，共聚酯对ＰＥＴ结晶有明显的促进作用，共聚体系中再加入成核剂具有加和的促进作用，共聚体系的结晶度比纯ＰＥＴ体系和共聚核剂体系的高。
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| 关 键 词： | PET 共聚酯 结晶半周期 结晶度 |
STUDY ON CRYSTALLIZATION BEHAVIOR OF PET COPOLYESTER |
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| Liu Yaoxi,An Jun,Sun Quangyong and Cheng Lixing.STUDY ON CRYSTALLIZATION BEHAVIOR OF PET COPOLYESTER[J].Polymer Materials Science & Engineering,1994,10(4):79-84. |
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| Authors: | Liu Yaoxi An Jun Sun Quangyong and Cheng Lixing |
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| Abstract: | The copolymer effecting on crystallization behavior of PET was studied by DSC,WAXD and was compared with pure PET and copolyester with nucleating agent. The behavior was characterized by temperature of crystallization of heating(value of peak) , isothermal crystallization half-life t_(1/2) ,and crystallinity.It has been shown that the copolyesters have good promotion on crystallization during heating of PET. Copolyester with nucleating agent has the best promotion. Crystalinites of the copolyesters are higher than that of pure PET and the copolyester with nucleating agent. |
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| Keywords: | s:PET copolyester crystallization half-life t_(1/2) crystallinity |
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