| SiO2纳米粒子改性填充PC的力学与流变性能 |
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| 引用本文： | 王平,赵建青,蒋智杰,刘运春,刘述梅.SiO2纳米粒子改性填充PC的力学与流变性能[J].过程工程学报,2009,9(6):1237-1241. |
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| 作者姓名： | 王平 赵建青 蒋智杰 刘运春 刘述梅 |
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| 作者单位： | 华南理工大学材料科学与工程学院,广州,广东,510640 |
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| 基金项目： | 国家自然科学基金资助项目，中国博士后科学基金资助项目 |
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| 摘 要： | 采用SiO2纳米粒子填充改性聚碳酸酯(PC)，为使无机纳米粒子在基体PC中分散均匀，经硅烷偶联剂KH-550对SiO2纳米粒子进行表面处理，分析了改性SiO2纳米粒子对复合材料机械与加工性能的影响，并对复合材料进行了分析表征，探讨了无机刚性纳米粒子填充改性典型工程塑料PC的特点并探索其增强增韧的机理，研究了复合物的粘流变性能. 结果表明，改性SiO2纳米粒为球形，在PC基体中分散均匀，湿法改性制备的PC/SiO2纳米粒子复合材料的力学拉伸性能和流变性能最好.
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| 关 键 词： | SiO2 聚碳酸酯 表面改性 力学性能 流变性能 |
| 收稿时间： | 2009-6-5 |
| 修稿时间： | 2009-9-29 |
Mechanical and Rheological Properties of PC Composite Filled with Modified SiO_2 Nanoparticles |
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| WANG Ping,ZHAO Jian-qing,JIANG Zhi-jie,LIU Yun-chun,LIU Shu-mei.Mechanical and Rheological Properties of PC Composite Filled with Modified SiO_2 Nanoparticles[J].Chinese Journal of Process Engineering,2009,9(6):1237-1241. |
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| Authors: | WANG Ping ZHAO Jian-qing JIANG Zhi-jie LIU Yun-chun LIU Shu-mei |
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| Abstract: | Modified SiO_2 nanoparticles were filled into polycarbonate (PC) by two different methods. In order to enable the inorganic nanoparticles dispersed evenly in the PC matrix, the silane coupling agent KH-550 was used to modify the surface of SiO_2 nanoparticles by wet treatment. The relationships between mechanical and processing properties of PC/SiO_2 composite and silica content were examined, and product performance characterized. The characteristics of rigid modified inorganic nanoparticles filled on a typical engineering plastic PC were also studied to explore the mechanism of its strength enhancement and the rheological properties of PC/SiO_2 composite. The results show that the modified SiO_2 spheres had uniform dispersion in PC matrix and PC/SiO_2 composite had good tensile strength and rheological effect. |
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| Keywords: | SiO_2 SiO_2 polycarbonate surface modification mechanical performance rheological property |
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