摘要
超疏水表面在电力系统防冰、防污闪、防湿闪等领域具有巨大的潜在应用。利用环氧树脂修饰纳米SiO_2,制备了环氧树脂/纳米SiO_2复合超疏水表面,对反应过程进行了跟踪,对其表面进行了微观形貌及疏水性表征,并开展了超疏水表面的沿面湿闪络试验。结果表明:制备出的环氧树脂/纳米SiO_2复合超疏水表面具有二元微纳复合粗糙结构,表面水滴静态接触角达到152°,具有良好的超疏水性能;当电极距离为5 cm时,超疏水表面的湿闪电压比硅橡胶表面和玻璃表面高63.6%和102.8%,表现出优异的防湿闪性能。
Super-hydrophobic surface shows great potential application in anti-icing, anti-pollution flashover, and anti-wet flashover in power system. SiO2 nanoparticles were modified by epoxy resin, and an epoxy resin/nano-SiO2 composite super-hydrophobic surface was prepared. The reaction process was moni- tored. The morphology and hydrophobicity of the super-hydrophobic surface were investigated, and the sur- face wet flashover experiments were conducted. The results show that the prepared epoxy resirdnano-SiO2 composite super-hydrophobic surface exhibits excellent super-hydrophobicity with two-dimensional micro-ha- no hierarchical structure, and its water static contact angle attains 152~. When the electrode distance is 5 cm, the wet flashover voltage of the super-hydrophobic surface is 63.6% and 102.8% higher than that of the silicone rubber surface and glass surface, and it shows excellent anti-wet flashover performance.
出处
《绝缘材料》
CAS
北大核心
2017年第11期14-19,共6页
Insulating Materials
基金
国家自然科学基金资助项目(51677048)
关键词
电力系统
环氧树脂
纳米SIO2
超疏水表面
防湿闪
power system
epoxy resin
SiO2 nanoparticle
super-hydrophobic surface
anti-wet flashover
