| PA66／TLCP原位复合材料的热性能、形貌及力学性能研究 |
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| 引用本文： | 郭鸿俊,张卓,林绍坤,张文熊.PA66／TLCP原位复合材料的热性能、形貌及力学性能研究[J].中国塑料,2006,20(8):42-46. |
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| 作者姓名： | 郭鸿俊 张卓 林绍坤 张文熊 |
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| 作者单位： | 北京工业大学材料科学与工程学院,北京100022 |
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| 摘 要： | 通过挤出和注射成型制备了聚酰胺66／热致液晶聚酰胺（PA66／FLCP）原位复合材料，研究了其热性能、形貌及力学性能。DSC分析表明，PA66和TLCP相容性较好，随着TLCP含量的增加，PA66的结晶度、结晶速率下降；SEM分析表明，TLCP在PA66基体中分散均匀，两相相容性较好，当加入10％（质量分数，下同）的TLCP时，TLCP形成长径比比较大的纤维；拉伸试验结果表明，当加入TLCP后，PA66的力学性能有明显的改善。当加入10％的TLCP时，共混物的力学性能增幅最大，拉伸强度增加79．6％，拉伸模量增加120．4％，断裂伸长率明显下降。
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| 关 键 词： | 聚酰胺66 热致液晶聚酰胺 原位复合材料 相容性 力学性能 |
| 文章编号： | 1001-9278（2006）08-0042-05 |
| 收稿时间： | 2006-05-31 |
| 修稿时间： | 2006-05-31 |
Study of Thermal, Morphological and Mechanical Properties of Polyamide 66/Thermotropic Liquid Crystalline Copolyamide In Situ Composites |
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| GUO Hong-jun, ZHANG Zhuo, LIN Shao-kun, ZHANG Wen-xiong.Study of Thermal, Morphological and Mechanical Properties of Polyamide 66/Thermotropic Liquid Crystalline Copolyamide In Situ Composites[J].China Plastics,2006,20(8):42-46. |
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| Authors: | GUO Hong-jun ZHANG Zhuo LIN Shao-kun ZHANG Wen-xiong |
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| Affiliation: | College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | Polyamide 66(PA66)/thermotropic liquid crystalline copolyamide(TLCP)in situ composites were prepared through extrusion and injection molding.Differential scanning calorimetry (DSC) tests showed that the crystallization rate and the degree of crystallization of PA 66 decreased with increasing TLCP concentration.Scanning electron micrographs (SEM) revealed that TLCP phases finely dispersed in PA66 matrix.During the processing,TLCP deformed to fibrils with larger aspect ratio.When the loading of TLCP was 10 %,the tensile strength and modulus increased by 79.6 % and 120.4 %,re- spectively,at a cost of decreasing elongation at break. |
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| Keywords: | polyamide 66 thermotropic liquid crystalline copolyamide in situ composite miscibility mechanical property |
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