| 纳米粒子混合填充聚四氟乙烯复合材料的性能 |
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| 引用本文： | 顾红艳.纳米粒子混合填充聚四氟乙烯复合材料的性能[J].塑料,2011,40(3). |
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| 作者姓名： | 顾红艳 |
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| 作者单位： | 南京农业大学工学院,江苏,南京210031 |
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| 摘 要： | 采用模压成型法制备纳米Si3N4或SiC与纳米Al2O3混合填充的聚四氟乙烯(PTFE)复合材料,研究不同质量分数的纳米Si3N4或SiC与5%纳米Al2O3混合填充对PTFE复合材料力学与耐磨性能的影响,利用扫描电子显微镜(SEM)观察复合材料拉伸断面的微观结构,探讨其增强机理.结果表明:纳米SiN4或SiC与Al2O3混合填料均能使PTFE复合材料的硬度和耐磨性提高,且填充Si3N4/Al2O3的PTFE复合材料的硬度、拉伸性能、冲击强度和耐磨性均优于填充SiC/Al2O3的,其中5%Si3N4与Al2O3混合填充的PTFE复合材料有较好的综合性能.微观分析表明:Si3N4/Al2O3在PTFE基体中分散性较好,说明Si3N4与Al2O3具有较好的协同作用.
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| 关 键 词： | 纳米粒子 PTFE复合材料 力学性能 耐磨性能 协同作用 |
Properties of PTFE Composite Filled with Different Nano-particles |
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| GU Hong-yan.Properties of PTFE Composite Filled with Different Nano-particles[J].Plastics,2011,40(3). |
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| Authors: | GU Hong-yan |
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| Affiliation: | GU Hong-yan(Engineering College,Nanjing Agricultural University,Nanjing,Jiangsu 210031,China) |
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| Abstract: | Polytetrafluoroethylene(PTFE) composite filled with nano-Si3N4 or SiC and Al2O3 were prepared by compression molding.The mechanical and wear properties of PTFE composite were studied.The tensile fracture surfaces were observed by a scanning electron microscope(SEM) and the enhanced mechanism was discussed.The result showed that the fillers mixed with nano-particles could raise the hardness and wear resistance.PTFE composite filled with nano-Si3N4 and Al2O3 had higher properties of hardness,tensile strength ... |
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| Keywords: | nano-particles PTFE composite mechanical properties wear properties synergy |
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