| 低密度聚乙烯/乙丙烯三元共聚(LDPE/EPO)共混体系的结晶动力学 |
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| 引用本文： | 高焕,莫志深.低密度聚乙烯/乙丙烯三元共聚(LDPE/EPO)共混体系的结晶动力学[J].高分子学报,1992,0(2):162-168. |
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| 作者姓名： | 高焕 莫志深 |
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| 作者单位： | 中国科学院长春应用化学研究所高分子物理开放实验室，中国科学院长春应用化学研究所高分子物理开放实验室 长春，邮政编码:130022，长春，邮政编码:130022 |
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| 摘 要： | 用DSC方法研究了LDPE/EPO共混体系的等温及非等温结晶动力学,对LDPE/EPO共混体系的等温结晶动力学研究表明,共混物是三维生长的异相成核,共混物在各个结晶温度下的结晶过程都是以方式K_g(Ⅱ)进行的.采用联系Avrami方程和Ozawa方程导出的新非等温结晶动力学方程,处理了LDPE/EPO共混体系,得到了非等温结晶过程的一些基本参数,新方程很好地描述了此共混体系的非等温结晶动力学过程.
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| 关 键 词： | (低密度聚乙烯/乙烯-丙烯-辛烯共聚物)共混体系 差示扫描量热法 等温及非等温结晶动力学 |
| 收稿时间： | 1990-09-14 |
CRYSTALLIZATION KINETICS OF LDPE/EPO BLENDS UNDER ISOTHERMAL AND NON-ISOTHERMAL CONDITIONS |
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| GAO Huan,MO Zhi-shen.CRYSTALLIZATION KINETICS OF LDPE/EPO BLENDS UNDER ISOTHERMAL AND NON-ISOTHERMAL CONDITIONS[J].Acta Polymerica Sinica,1992,0(2):162-168. |
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| Authors: | GAO Huan MO Zhi-shen |
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| Affiliation: | Laboratory of Polymer Physics; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun; Post code: 130022 |
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| Abstract: | The isothermal crystallization kinetics of LDPE/EPO blends have been investigated by DSC. It indicated that blends are of three-dimensional growth a thermal nucleation. The nucleation process in every crystallization temperature belong to regime II. A new kinetic equation of non-isothermal crystallization was derived by combining Avrami and Ozawa equations. Some parameters of crystallization kinetics can be obtained from the new kinetic equation. The kinetics of non-isothermal crystallization of a LDPE/EPO blends has been investigated by using differential scanning calorimeter. The experimental results analyzed showed agreements with the new kinetic equation. |
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| Keywords: | LDPE/EPO blends DSC Crystallization kinetics under isothermal and non-isothermal conditions |
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