为研究纳米二氧化硅掺杂环氧树脂的局部放电起始电压及导热性，制备了不同纳米粒子含量的纳米二氧化硅/环氧树脂复合材料试样，测试其局部放电起始电压和热导率。结果表明：在纳米粒子含量为5%时，纳米二氧化硅/环氧树脂复合材料的局部放电起始电压达到最大值，较纯环氧树脂提高了22.5%；复合材料热导率达到最大值，较纯环氧树脂提高了157%。通过对试样的微观结构分析可知，掺杂纳米粒子可以抑制复合材料内部缺陷的产生。
Nano-SiO2/epoxy composites with different content of nanoparticles were prepared, and their partial discharge inception voltage (PDIV) and thermal conductivity were tested. The results show that when the doping amount of SiO2 particles is 5%, the PDIV and thermal conductivity of the composite reach the maximum, the PDIV is 22.5% higher than that of pure epoxy, and the thermal conductivity is 157% higher than that of pure epoxy. According to the micro-structure analysis of samples, the addtition of nanoparticles can suppress the emerging of internal defect in the composites.
参考文献
| [1] | 高铭泽 .纳米SiO2复合环氧树脂中纳米粒子分散性与介电性关系[D].哈尔滨理工大学,2014. |
| [2] | 黄帆;刘轶群;张晓红;高建明;宋志海;谭邦会;魏根栓;乔金樑.弹性纳米粒子改性环氧树脂的研究[J].中国科学B辑,2004(5):432-440. |
| [3] | 陈健;杨云峰.环氧树脂增韧改性研究进展[J].工程塑料应用,2014(5):130-133. |
| [4] | 田超;杨莉;马寒冰.纳米二氧化硅增韧改性环氧树脂的性能研究[J].西南科技大学学报,2012(4):11-14. |
| [5] | 董元彩;孟卫;魏欣;杨绪杰;陆路德;汪信.环氧树脂/二氧化钛纳米复合材料的制备及性能[J].塑料工业,1999(6):37-38. |
| [6] | 田霖 .直流电压下环氧树脂纳米复合电介质的电痕破坏现象研究[D].天津大学,2012. |
| [7] | 杨志强;郝留成;李小红;田金涛;杜祖亮;张治军.可分散性纳米二氧化硅改性高压绝缘用环氧树脂的研究[J].绝缘材料,2006(1):7-10. |
| [8] | 周宏;张玉霞;范勇;陈昊.片状纳米Al2O3/环氧树脂复合材料的制备及性能[J].复合材料学报,2014(5):1142-1147. |
| [9] | T. J. Lewis.Interfaces are the Dominant Feature of Dielectrics at the Nanometric Level[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,20045(5):739-753. |
| [10] | Toshikatsu Tanaka;Masahiro Kozako;Norikazu Fuse;Yoshimichi Ohki.Proposal of a Multi-core Model for Polymer Nanocomposite Dielectrics[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,20054(4):669-681. |
| [11] | 谭秀民;冯安生;赵恒勤.硅烷偶联剂对纳米二氧化硅表面接枝改性研究[J].中国粉体技术,2011(1):14-17. |
| [12] | 逯义;赵中原.纳米TiO2表面改性及表征研究[J].当代化工,2012(4):339-341. |
| [13] | 王旗;李喆;尹毅;吴建东.微/纳米氧化铝/环氧树脂复合材料热导率和击穿强度的研究[J].绝缘材料,2013(2):49-52. |
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