|
|||||
|
|
| 含两种不同共聚组分改性聚酯的结晶速率 | |
| 引用本文： | 林建鹏,江盛玲,王国德,武荣瑞.含两种不同共聚组分改性聚酯的结晶速率[J].聚酯工业,2003,16(6):20-22,47. |
| 作者姓名： | 林建鹏 江盛玲 王国德 武荣瑞 |
| 作者单位： | 1. 北京服装学院,北京,100029 2. 北京化工大学,北京,100029 3. 济南化纤总公司,山东,济南,250100 |
| 摘 要： | 添加己二酸、间苯二甲酸,聚乙二醇对PET进行改性,合成样品。用DSC法研究合成共聚物的等温结晶动力学。结果表明,在所选择的温度范围内,共聚物很好的符合Avrami方程。随温度的升高,共聚物的结晶速度常数K和Avrami指数n逐渐减小,结晶速度G逐渐降低。含2种柔性组分的共聚酯随着一种柔性组分含量的增加,结晶速率G上升;含一种刚性一种柔性组分的共聚酯随刚性组分含量的增加,结晶速率G下降。 |
| 关 键 词： | PET 共聚物 等温结晶动力学 |
| 文章编号： | 1008-8261(2003)06-0020-03 |
The crystallization rate of modified polyethylene terephthalate with two different copolymer composition |
|
| LIN Jian-peng,JIANG Sheng-ling,WANG Guo-de,WU Rong-rui.The crystallization rate of modified polyethylene terephthalate with two different copolymer composition[J].Polyester Industry,2003,16(6):20-22,47. | |
| Authors: | LIN Jian-peng JIANG Sheng-ling WANG Guo-de WU Rong-rui |
| Affiliation: | LIN Jian-peng~1,JIANG Sheng-ling~2,WANG Guo-de~3,WU Rong-rui~1 |
| Abstract: | By addition of adipic acid (AA), iso-phthalic acid (IPA) and polyethylene glycol (PEG),the crystallization properties of modified PET are studied. The DSC method is used to research isothermal crystallization kinetics of synthesized copolyester. The result shows that copolyester conforms to Avrami equation very well within the selected range of temperature. With the increasing of temperature, the crystallization rate constant K and Avrami index n of copolyester decreases gradually, crystallization rate G also decreases. For copolyester containing two flexible components, crystallization rate G increases with increasing the content of one component; for copolyester containing a rigid component and a flexible one, crystallization rate G decreases with increasing the content of rigid component . |
| Keywords: | PET copolymer isothermal crystallization kinetics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |