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Hygrothermal ageing resistance of nano SiO2 modified glass fiber reinforced resin
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Wei YANG1, Bingyue YAN1, Guowei XIA2, Guohua YIN2, Qijun DUAN2, Jun XIE2
Insulating Materials | 2023, 56(10) : 50 - 58
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Insulating Materials | 2023, 56(10): 50-58
• Insulation Technology •
Hygrothermal ageing resistance of nano SiO2 modified glass fiber reinforced resin
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Wei YANG1, Bingyue YAN1, Guowei XIA2, Guohua YIN2, Qijun DUAN2, Jun XIE2
Affiliations
  • 1State Key Laboratory of Advanced Power Transmission Technology, Beijing 102209, China
  • 2Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
Published: 2023-10-20 doi: 10.16790/j.cnki.1009-9239.im.2023.10.007
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Glass fiber reinforced resin polymer (GFRP), which is widely used in high voltage electrical equipment, is easily to be eroded by hygrothermal environment under long-term operation conditions, resulting in insulation deterioration, which affects the safe and stable operation of power system. In this paper, glass fiber was modified by nano SiO2, and GFRP composites were synthesized by infiltrating epoxy resin. Accelerated hygrothermal ageing treatment was carried out on the composites, and the influence of different concentrations of nano SiO2 on water invasion and ageing resistance of GFRP was analyzed by experimental test and simulation. The results show that when the mass fraction of SiO2 is 9.4%, GFRP has the best inhibition effect on water intrusion. At the same time, the addition of SiO2 can make the GFRP composites maintain high surface insulation properties before and after ageing. In addition, combined with the simulation results, the inhibition effect of SiO2 on water intrusion of GFRP composites and the influence mechanism of hygrothermal ageing resistance of GFRP are revealed from the molecular scale.

glass fiber reinforced resin  /  hygrothermal ageing  /  moisture diffusion  /  surface flashover  /  molecular dynamics
Wei YANG, Bingyue YAN, Guowei XIA, Guohua YIN, Qijun DUAN, Jun XIE. Hygrothermal ageing resistance of nano SiO2 modified glass fiber reinforced resin[J]. Insulating Materials, 2023 , 56 (10) : 50 -58 . DOI: 10.16790/j.cnki.1009-9239.im.2023.10.007
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.10.007
  • Receive Date：2022-11-03
  • Online Date：2025-11-24
  • Published：2023-10-20
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History
  • Received：2022-11-03
  • Revised：2022-12-23
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    1State Key Laboratory of Advanced Power Transmission Technology, Beijing 102209, China
    2Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.10.007
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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