| 成核剂对尼龙66等温结晶行为的影响 |
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| 引用本文： | 艾舒琪,马敬红,梁伯润. 成核剂对尼龙66等温结晶行为的影响[J]. 聚酯工业, 2004, 17(2): 34-37 |
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| 作者姓名： | 艾舒琪 马敬红 梁伯润 |
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| 作者单位： | 东华大学纤维材料改性国家重点实验室,材料学院,上海,200051 |
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| 摘 要： | 用差示扫描量热法(DSC)测定了滑石粉、氟化钙等成核剂对尼龙66等温结晶行为的影响。结果表明,尼龙66.M成核剂体系在高温结晶时存在晶型转变;Avrami指数n、成核机理、晶体生长方式基本上不受成核剂的影响。少量成核剂可使结晶成核自由能降低,结晶速率加大,其中滑石粉的效果最为显著。
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| 关 键 词： | 尼龙66 成核剂 晶型转变 等温结晶动力学 |
| 文章编号： | 1008-8261(2004)02-0034-03 |
| 修稿时间： | 2003-12-09 |
Effect of nucleators on the isothermal crystallization kinetics of PA66 |
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| AI Shu-qi,MA Jing-hong,LIANG Bo-run rial,Donghua University,Shanghai ,China). Effect of nucleators on the isothermal crystallization kinetics of PA66[J]. Polyester Industry, 2004, 17(2): 34-37 |
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| Authors: | AI Shu-qi MA Jing-hong LIANG Bo-run rial Donghua University Shanghai China) |
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| Affiliation: | AI Shu-qi,MA Jing-hong,LIANG Bo-run rial,Donghua University,Shanghai 200051,China) |
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| Abstract: | Crystallization behavior of PA66 with nucleators including talcum powder and calcium fluoride under isothermal conditions was investigated.The results indicate that there is a transition of crystal modification viewed at higher temperature and no effect of nucleators on the Avrami exponent n ,nucleation mechanism and the growth mode of crystallization.It is showed that the nucleators decreases the cryatallization nucleation free energy, causes a considerable increase in the overall crystallization rate of PA66.The effect of talcum powder is more significant than others. |
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| Keywords: | polyamide 66 nucleator kinetics of isothermal crystallization |
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