| 聚甲醛结晶性能的改性 |
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| 引用本文： | 孙建丽,胡友亮,叶林,刘廷华.聚甲醛结晶性能的改性[J].塑料工业,2006,34(7):19-21. |
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| 作者姓名： | 孙建丽 胡友亮 叶林 刘廷华 |
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| 作者单位： | 四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川,成都,610065 |
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| 基金项目： | 云南省省院省校科技合作项目 |
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| 摘 要： | 研究了高摩尔质量羧酸盐类成核剂HC对聚甲醛（POM）的结晶成核作用，采用示差扫描量热分析（DSC）、偏光显微镜观察（PLM）及等温结晶动力学分析等方法研究了该类成核剂对POM结晶形态、结晶度、结晶速率等的影响，并考察了其力学性能。结果表明，高摩尔质量羧酸盐类成核剂HC的加入，使POM晶粒细化，结晶诱导期缩短，显著提高了POM的结晶速率。
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| 关 键 词： | 聚甲醛 成核剂 结晶动力学 |
| 文章编号： | 1005-5770(2006)07-0019-03 |
| 收稿时间： | 2006-03-14 |
| 修稿时间： | 2006年3月14日 |
Improvement on Crystallization Property of POM |
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| SUN Jian-li,HU You-liang,YE Lin,LIU Ting-hua.Improvement on Crystallization Property of POM[J].China Plastics Industry,2006,34(7):19-21. |
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| Authors: | SUN Jian-li HU You-liang YE Lin LIU Ting-hua |
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| Affiliation: | College of Polymer Sci. and Eng., the State Key Lab. of Polymer Materials Eng., Siehuan University, Chengdu 610065, China |
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| Abstract: | The nucleation effect of nucleating agent HC (mainly containing salt of high molecular carboxylic acid) on polyoxymethylene(POM) was studied, and the effects of the nucleating agent on the crystalline morphology, crystallizability and crystallization rate of POM were also studied by means of DSC, PLM and isothermal crystallization kinetics analysis. The mechanical properties of the modified POM were studied, too. The results showed the addition of nucleating agent HC made the crystal grain more fine, shortened the induction period of crystallization and increased the crystallization rate of POM greatly. |
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| Keywords: | POM Nucleating Agent Crystallization Kinetics |
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