| PET/PTT共混体系的结晶熔融行为 |
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| 引用本文： | 梁浩,吴唯,钱琦,刘敏.PET/PTT共混体系的结晶熔融行为[J].高分子材料科学与工程,2007,23(1):153-156. |
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| 作者姓名： | 梁浩 吴唯 钱琦 刘敏 |
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| 作者单位： | 华东理工大学石油化工学院化工系,上海,201512 |
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| 摘 要： | 对PET/PTT共混体系的DSC热分析结果表明,在共混体系中两组分形成各自的晶体,呈现各自的熔点Tm,但两种聚合物各自的结晶过程是彼此受对方影响的。从形态和热力学两方面对共混体系的熔点下降行为进行了解释,根据N ish i-W ang方程的计算结果,PET/PTT共混体系的相互作用能密度和相互作用参数都为负值,表明PET/PTT共混体系在熔融态是热力学稳定的相容体系,在该体系中,PET和PTT分子间存在着密切的相互作用。
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| 关 键 词： | 聚对苯二甲酸乙二醇酯 聚对苯二甲酸丙二醇酯 共混 熔点下降 |
| 文章编号： | 1000-7555（2007）01-0153-04 |
| 修稿时间： | 2005-10-24 |
Melting Crystallization of PET/PTT Blends |
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| LIANG Hao,WU Wei,QIAN Qi,LIU Min.Melting Crystallization of PET/PTT Blends[J].Polymer Materials Science & Engineering,2007,23(1):153-156. |
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| Authors: | LIANG Hao WU Wei QIAN Qi LIU Min |
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| Affiliation: | Petrochemical College, East China University of Science and Technology, Shanghai 201512, China |
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| Abstract: | The analysis of cold crystallization and melting crystallization of PET/PTT blends showed that PET and PTT in the blends crystallize to form its own crystallites,at the same time,there is also influence of the other component in the crystallization.The depression of melting point was investigated by Nishi-Wang equation.The result reveals that PET/PTT is thermodynamics stable in the melting state and there is interaction between PET and PTT components. |
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| Keywords: | poly(ethylene terephthalate) poly(trimethylene terephthalate) blends melting point depression |
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