共 35 条
High flashover strength and superhydrophobic coatings by constructing porous surface structure
被引:11
作者:

Li, Mengtao
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China

Chen, Tingxin
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China

Guo, Xiaobo
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China

Dong, Lei
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China

Chen, Jiming
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China

Zhu, Mingxiao
论文数: 0 引用数: 0
h-index: 0
机构:
China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China
China Univ Petr East China, Coll New Energy, Qingdao 266580, Peoples R China China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China
机构:
[1] China Univ Petr East China, Coll New Energy, Qingdao, Peoples R China
[2] China Univ Petr East China, Coll New Energy, Qingdao 266580, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
CHARGE ACCUMULATION;
INSULATORS;
TRANSPORT;
VACUUM;
D O I:
10.1049/hve2.12294
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Flashover is prone to occur in composite insulation structures such as vacuum-solid and gas-solid, which are universally employed in high-voltage power equipment. In this study, a high flashover strength and superhydrophobic coating were proposed by constructing porous surface morphology. Octadecyl trichlorosilane (OTS) particles were prepared by hydrolysis condensation reaction, and thereafter sprayed onto the substrate surface to form a porous and rough surface structure with hundreds of nanometres of dispersed pores and pits. The coating endowed epoxy resin with maximum 44% flashover voltage increase and the superhydrophobic surface with water contact angle of 158.4 degrees. Since the pore size in OTS coating is close to electron mean free path in atmospheric condition, the collisional ionisation can be effectively hindered, which suppresses the micro-discharge around the triple junction and improves the flashover strength. The present approach provides a new insight for simultaneously improving flashover strength and superhydrophobic properties of dielectric insulation.
引用
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页码:728 / 738
页数:11
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