Effect of Coupling Agent Treatment on Mechanical Properties of SiO2/CE Resin Composites
摘 要
利用纳米SiO2对氰酸酯(CE)树脂进行改性,并分别选用小分子偶联剂KH-560和大分子偶联剂SEA-171对纳米SiO2进行表面处理,研究了纳米SiO2含量以及偶联剂结构对纳米SiO2/CE树脂复合材料力学性能的影响.结果表明:随着纳米SiO2含量的增大,复合材料的冲击强度和弯曲强度均呈先增大后减小的趋势,大分子偶联剂处理后的纳米SiO2增强效果比小分子的好;当大分子偶联剂处理后的SiO2质量分数为3%时,复合材料的强度达到最大,其中冲击强度达15.99 kJ·m-2,弯曲强度达147.55 MPa,与纯CE树脂相比,增幅分别为61.9%和44.2%.
Abstract
Cyanate ester(CE) resin was modified by nanometer SiO2 which surface was treated with the small molecule coupling agent KH-560 and macromolecule coupling agent SEA-171 respectively.The influence of nanometer SiO2 content and coupling agents structure on the mechanical of nanometer SiO2/CE resin composites material was investigated.The results showed that both the impact strength and the flexural strength of the composites first increased then decreased with the increase of SiO2 content.Strengthening effect of nanometer SiO2 treated by macromolecule coupling agent was better than that treated by small molecule.When the SiO2 treated by macromdecule coupling agent content was 3%,strength of the composites reached the maximum with the impact strength of 15.99 kJ·m-2 and flexural strength of 147.55 MPa,which were 61.9% and 44.2% higher than that of pure CE respectively.
中图分类号 TB332
所属栏目 材料性能及其应用
基金项目 陕西省教育厅专项科研计划资助项目(06JK303);陕西省科技厅专项基金资助项目(2006B25)
收稿日期 2008/1/2
修改稿日期 2008/5/22
网络出版日期
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备注祝保林(1975-),男,陕西铜川人,讲师.
引用该论文: ZHU Bao-lin. Effect of Coupling Agent Treatment on Mechanical Properties of SiO2/CE Resin Composites[J]. Materials for mechancial engineering, 2009, 33(2): 78~81
祝保林. 偶联剂表面处理对纳米SiO2/氰酸酯树脂复合材料力学性能的影响[J]. 机械工程材料, 2009, 33(2): 78~81
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参考文献
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【3】姜振华.先进聚合物基复合材料技术[M].北京:科学出版社,2007:55-76.
【4】Fan Jing,Hu Xiao,Yue Chee Yoon.Static and dynamic mechanical properties of modified bismaleimide and cyanate ester interpenetrating polymer networks[J].Journal of Applied Polymer Science,2003,88(8):2000-2006.
【5】祝保林,王君龙,张文根.热塑性树脂改型氰酸酯树脂的研究[J].工程塑料应用,2008,36(1):12-16.
【6】祝保林,王君龙.偶联剂表面处理对复合材料动态力学性能的影响[J].应用化工,2008,37(4):387-390.
【7】张玉龙,高树理.纳米改性剂[M].北京:国防工业出版社,2004:121-211.
【8】黄传军,张以河,付绍云.SiO2/环氧树脂基纳米复合材料的室温和低温力学性能[J].复合材料学报,2004,21(4):77-81.
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【11】Okamoto M,Morita S,Taguchi H,et al.Synthesis and structure of smectic clay/poly(methylmethacrylate) and clay/polystyrene nanocomposites via in situ intercalative polymerization[J].Polymer,2000,41:3887-3890.
【12】Tseng C R,Wu J Y,Lee H Y,et al.Preparation and characterization of polystyreneclay nano-composites by free-radical polymerization[J].Appl Polym Sci,2002,85:1370-1377.
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