| PET玻璃化转变温度处双重吸热峰的研究 |
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| 引用本文： | 马德柱,朱平平.PET玻璃化转变温度处双重吸热峰的研究[J].中国科学技术大学学报,1989,19(4):520-523. |
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| 作者姓名： | 马德柱 朱平平 |
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| 摘 要： | 在室温下长时间存放以及再拉伸,聚对苯二甲酸乙二醇酯经示差扫描量热分析(DSC),其热谱在玻璃化转变区域出现单一的或双重的附加吸热峰。单一吸热峰和双峰中前吸热峰与样品热历史有关,反映有序非晶区的存在,双峰中后吸热峰与拉伸历史有关,可能反应介晶结构存在。
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| 关 键 词： | 玻璃化转变温度 双重吸热峰 热分析 介晶结构 |
Study on the Double Endothermic Peaks at T_g of PET |
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| Abstract: | The influence of keeping at room temperature and drawing upon the glassy transition of PET is studied by eans of DSC. The si?gle endothermic peakappears at T_g for PET plate, and double endothermic peaks appear at _g ororiented PET films. Such experimental fact means that in the non-crystallineregion of PET exist some order and esophase. |
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| Keywords: | the glassy transition temperature double endothermic peaks thermal analysis mesomorphic structure |
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