| POM/PEO共混物中PEO对POM非等温结晶的影响 |
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| 引用本文： | 白时兵,刘靖琳,王琪.POM/PEO共混物中PEO对POM非等温结晶的影响[J].高分子材料科学与工程,2007,23(6):136-139. |
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| 作者姓名： | 白时兵 刘靖琳 王琪 |
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| 作者单位： | 高分子材料工程国家重点实验室(四川大学),四川大学高分子研究所,四川成都610065 |
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| 基金项目： | 国家高新技术研究发展计划(863计划)(2002AAA333070)资助项目 |
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| 摘 要： | 利用DMA和DSC考察了POM/PEO共混物的相容性及PEO对POM非等温结晶的影响。结果表明,POM/PEO共混物只有一个玻璃化转变温度(Tg),与组分的关系符合Fox方程,POM与PEO在无定形态相容,PEO抑制了POM成核,降低了POM的结晶速度和共混物中POM的相对结晶度。PEO含量较高时POM结晶温度下降。
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| 关 键 词： | 聚甲醛 聚氧化乙烯 相容性 非等温结晶 |
| 文章编号： | 1000-7555（2007）06-0136-04 |
| 修稿时间： | 2007-03-20 |
Effect of PEO on Nonisothermal Crystallization of POM in POM/PEO Blends |
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| BAI Shi-bing,LIU Jing-lin,WANG Qi.Effect of PEO on Nonisothermal Crystallization of POM in POM/PEO Blends[J].Polymer Materials Science & Engineering,2007,23(6):136-139. |
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| Authors: | BAI Shi-bing LIU Jing-lin WANG Qi |
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| Affiliation: | State Key Lab. of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China |
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| Abstract: | In this paper,the miscibility between POM and PEO and nonisothermal crystallization of POM in the POM/PEO blends were investigated by DMA and DSC.DMA results show that POM and PEO are miscible at the molecule level in the amorphous state.Nonisothermal crystallization analyses show that PEO restrains the formation of POM crystal nucleus,depresses the growth rate of POM crystal,decreases the crystalline temperature and relative crystallinity of POM. |
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| Keywords: | polyoxymethylene polyethylene oxide miscibility nonisothermal crystallization |
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