| 聚甲醛/共聚酰胺共混物的结晶形态及力学性能 |
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| 引用本文： | 李昕,曲敏杰,李建丰,索子君,魏后禄,张博. 聚甲醛/共聚酰胺共混物的结晶形态及力学性能[J]. 塑料科技, 2007, 35(3): 34-37 |
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| 作者姓名： | 李昕 曲敏杰 李建丰 索子君 魏后禄 张博 |
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| 作者单位： | 大连轻工业学院化工与材料学院,辽宁,大连,116034;大连理工大学化工学院高分子材料系,辽宁,大连,116012 |
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| 摘 要： | 研究了共聚酰胺含量对聚甲醛/共聚酰胺(POM/COPA)共混物结晶形态及力学性能的影响。结果表明:POM/COPA共混物中存在氢键相互作用;结晶温度对POM的结晶形态有较大影响,温度较高时POM结晶较完善,球晶尺寸较大;同时,COPA的加入使共混物的球晶细化,极大地改善了POM的韧性。当COPA含量为4%时,共混物缺口冲击强度达到最大值,拉伸强度几乎不变,POM/COPA具有较理想的综合力学性能。
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| 关 键 词： | 聚甲醛 共聚酰胺 结晶形态 力学性能 |
| 文章编号： | 1005-3360（2007）03-0034-04 |
| 修稿时间： | 2006-09-15 |
Study on Crystallite Morphology and Mechanical Property of Polyoxymethylene/Copolyamide Blends |
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| Li Xin,Qu Minjie,Li Jianfeng,Suo Zijun,Wei Houlu,Zhang Bo. Study on Crystallite Morphology and Mechanical Property of Polyoxymethylene/Copolyamide Blends[J]. Plastics Science and Technology, 2007, 35(3): 34-37 |
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| Authors: | Li Xin Qu Minjie Li Jianfeng Suo Zijun Wei Houlu Zhang Bo |
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| Affiliation: | 1.Department of Chemical and Material Engineering Dalian Institute of Light Industry, Danlian 116034,China;2.Department of Polymer Science, dalian Univ. of Technol., Dalian 116012,China |
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| Abstract: | The effect of the COPA content on the crystallite morphology and mechanical property of polyoxymethylene/ Copolyamide (POM/COPA) blends was studied. The results showed that the hydrogen bond interaction exists in the POM/COPA blends, the crystallization temperature has great influence on POM, when the temperature is higher, it has a better crystallization and bigger spherulite size. With addition of COPA, it causes the spherulite to become fine and the toughness of POM to be increased greatly. When the content of the COPA is 4%, the blends have the maximum izod impact strength and the tensile strength is nearly unchanged, POM/COPA blends have better mechanical properties. |
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| Keywords: | Polyoxymethylene Co-polyamide Cystallite morphology Mechanical property |
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