| 新戊二醇(NPG)对PET的改性研究 |
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| 引用本文： | 缪国华,秦伟明,程贞娟. 新戊二醇(NPG)对PET的改性研究[J]. 浙江理工大学学报, 2005, 22(4): 337-340 |
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| 作者姓名： | 缪国华 秦伟明 程贞娟 |
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| 作者单位： | 浙江理工大学材料与纺织学院,杭州,310018 |
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| 摘 要： | 讨论了新戊二醇(NPG)与PET单体的共聚反应,并用差示扫描热量分析(DSC)方法对共聚酯热性能和结晶性能进行分析.实验证明随着NPG的加入酯化和缩聚时间延长,乙二醇(EG)更容易被酯交换出来;DSC图谱显示,随着NPG含量的增加,共聚酯的冷结晶温度升高,熔点和结晶度下降.
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| 关 键 词： | 聚对苯二甲酸乙二酯 新戊二醇 共聚反应 差示扫描热量分析 |
| 文章编号： | 1009-4741（2005）04-0337-04 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005-05-09 |
Study on PET Modified by Neopentyl Glycol(NPG) |
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| MIAO Guo-hua,QIN Wei-ming,CHENG Zhen-juan. Study on PET Modified by Neopentyl Glycol(NPG)[J]. Journal of Zhejiang Sci-tech University, 2005, 22(4): 337-340 |
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| Authors: | MIAO Guo-hua QIN Wei-ming CHENG Zhen-juan |
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| Affiliation: | College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China |
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| Abstract: | Discusses the copolymerized reaction between neopentyl glycol and the modifiers of PET.Thermal performance and crystallization performance of its copolymer are investigated by means of differential scanning calorimetry(DSC).Experiment results have revealed that the time of esterification and condensation will increase with the adding of NPG;ethylene glycol(EG) is easier to be exchanged out than NPG.The DSC indicates that the cooling crystallization peak temperature(Tc) of the copolymer will rise,but its melting point(T_m) and crystallinity(Xc) will decrease with the content increasing of NPG in copolymer. |
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| Keywords: | PET Neopentyl glycol Modification Copolymerized reaction DSC |
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