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Performance evaluation and reutilization study of degraded glass fibers from 220 kV retired composite insulator
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Hechen LIU1, 2, Di HUANG1, Yunpeng LIU1, 2, Ying ZOU1, Yuli WANG1
Insulating Materials | 2025, 58(5) : 125 - 131
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Insulating Materials | 2025, 58(5): 125-131
• Test and Analysis •
Performance evaluation and reutilization study of degraded glass fibers from 220 kV retired composite insulator
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Hechen LIU1, 2, Di HUANG1, Yunpeng LIU1, 2, Ying ZOU1, Yuli WANG1
Affiliations
  • 1. Hebei Key Laboratory of Green and Efficient New Electrical Materials and Equipment, North China Electric Power University, Baoding 071003, China
  • 2. State Key laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
Published: 2025-05-20 doi: 10.16790/j.cnki.1009-9239.im.2025.05.016
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In order to realize the recycling and reuse of degraded glass fiber (d-GF), to obtain degraded glass fiber was obtained by chemical degradation method from the selected the 220 kV retired composite insulator core rod, and the mechanical, thermal, and microscopic differences between degraded glass fiber and ordinary glass fiber (GF) were compared. Then, polyethylene (PE) composite materials (d-GF/PE, GF/PF) reinforced with different contents of glass fiber were prepared to explore the reuse prospects of degraded glass fiber reinforced materials. The results show that silane coupling agent can realize the surface modification of degradable glass fiber, and the modification effect is slightly better than that of ordinary glass fiber. The surface of the degraded glass fiber is relatively rough, with scale like damage and a small amount of resin residue in some areas, but there is no obvious erosion or fracture phenomenon on the whole. The fracture stress distribution of degradable glass fiber is relatively discrete, and the average fracture stress is 1 520 MPa, which is 29.95% lower than that of ordinary glass fiber. The interface state between glass fiber and polyethylene matrix in d-GF/PE is good, under the same glass fiber content, the difference in maximum fracture stress between d-GF/PE and GF/PF is only 2.15 MPa.

retired composite insulators  /  chemical degradation  /  degraded glass fibers  /  performance evaluation  /  glass fiber composite plastic
Hechen LIU, Di HUANG, Yunpeng LIU, Ying ZOU, Yuli WANG. Performance evaluation and reutilization study of degraded glass fibers from 220 kV retired composite insulator[J]. Insulating Materials, 2025 , 58 (5) : 125 -131 . DOI: 10.16790/j.cnki.1009-9239.im.2025.05.016
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2025.05.016
  • Receive Date：2024-05-21
  • Online Date：2025-12-04
  • Published：2025-05-20
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History
  • Received：2024-05-21
  • Revised：2024-08-14
Affiliations
    1. Hebei Key Laboratory of Green and Efficient New Electrical Materials and Equipment, North China Electric Power University, Baoding 071003, China
    2. State Key laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2025.05.016
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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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