The influences of silane coupling agents on the heat and moisture resistance of basalt fibre-reinforced composites

作     者：Yunpeng Liu Mingjia Zhang Hechen Liu Yu Sun Wanxian Wang Jie Liu Yunpeng Liu;Mingjia Zhang;Hechen Liu;Yu Sun;Wanxian Wang;Jie Liu

作者机构：Hebei Provincial Key Laboratory of Power Transmission Equipment Security DefenceNorth China Electric Power UniversityBaodingChina State Key Laboratory of Alternate Electrical Power System with Renewable Energy SourcesNorth China Electric Power UniversityBaodingChina State Grid Hebei Electric Power Company Electric Power Research InstituteShijiazhuangChina 

出 版 物：《High Voltage》 (高电压（英文）)

年 卷 期：2023年第8卷第1期

页      面：38-47页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China,Grant/Award Number:52007062 Central University Basic Research Fund of China,Grant/Award Number:2020MS088 State Grid Corporation of China,Grant/Award Number:kj2020-057。 

主　　题：composites coupling fibre 

摘      要：Basalt fibre composite materials have shown good application prospects in electrical equipment,but their reliability can be affected by damp-heat ageing.In this work,the interface,mechanical,and electrical properties of basalt fibre composites treated with three coupling agents via damp-heat ageing were compared.Molecular simulations were conducted to reveal the damp-heat ageing mechanism of the composites.The results show thatγ-aminopropyl triethoxy silane(KH-550)andγ-glycidoxy propyl trimethoxy silane(KH-560)perform better as coupling agents as they form bonds with the matrix resin,compared withγ-methacryloxy propyl trimethoxy silane(KH-570).After the dampheat ageing treatment,the hydrolysis of the defects of the amino groups in the interface of the KH-550-treated sample can weaken its mechanical properties and insulation properties greatly.The interface layer of the KH-560-treated sample is mostly composed of carbon–oxygen single bonds and methylene groups with its interface structure more stable,which endows the sample with better stability of its mechanical and insulating properties.Therefore,KH-560 is a more suitable coupling agent for processing basalt fibres to be used in electrical equipment.