| PET-PEG共聚酯性能的研究 |
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| 引用本文： | 陆嘉 王兴仁. PET-PEG共聚酯性能的研究[J]. 合成技术及应用, 1999, 14(1): 21-24 |
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| 作者姓名： | 陆嘉 王兴仁 |
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| 作者单位： | 扬子石油化工公司研究院 |
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| 摘 要： | 通过共缩聚反应合成了ＰＥＴ－ＰＥＧ共聚酯，采用ＤＳＣ法测定了共聚物的结晶性能、结晶速度，还测试了共聚物的力学性能，结果表明：ＰＥＧ的加入能有效地增加分子链柔性，改善结晶性能，其中ＰＥＴ－ＰＥＧ６０００在１００℃的半结晶时间为０．７ｍｉｎ，ＰＥＧ的含量在２０％以下，拉伸性能没有恶化，冲击强度、断裂伸长率大大提高
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| 关 键 词： | 聚对苯二甲酸乙二醇酯聚乙二醇共聚酯 结晶性能 力学性能 |
STUDY ON PROPERTIES OF PET PEG COPOLYESTER |
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| Lu Jia Wang Xinren Lin Zeji Lan Xin. STUDY ON PROPERTIES OF PET PEG COPOLYESTER[J]. Synthetic Technology and Application, 1999, 14(1): 21-24 |
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| Authors: | Lu Jia Wang Xinren Lin Zeji Lan Xin |
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| Affiliation: | Research Institiue of Yangzi Petrochemical Co. |
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| Abstract: | The PET PEG copolymer with different PEG molecular weight were systhesized through condensation polymerization. The crystal property and mechanical properties of PET PEG copolyester were studied. The result shows that the polymer chain becomes easy to move and the crystal property was improved. PET-PEG6000 copolymer crystal rate can attain to 0 7 minutes at 100℃. When the content of PEG was bellow 20%, the tensile strength of the copolyester did not change almost, the Izod impact strength and elongation at break of system were improved. |
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| Keywords: | PET PEG copolyester crystal property mechanical property |
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