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Preparation and insulating properties of multiple mixed-modified insulating paper
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Yuanxiang ZHOU1, 2, Huijuan WANG1, Xin HUANG2, Xingjin ZHANG1, Lei XUE2
Insulating Materials | 2023, 56(3) : 1 - 8
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Insulating Materials | 2023, 56(3): 1-8
• Material Research •
Preparation and insulating properties of multiple mixed-modified insulating paper
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Yuanxiang ZHOU1, 2, Huijuan WANG1, Xin HUANG2, Xingjin ZHANG1, Lei XUE2
Affiliations
  • 1The Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
  • 2State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
Published: 2023-03-20 doi: 10.16790/j.cnki.1009-9239.im.2023.03.001
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In order to study the effect of organic and inorganic fillers on the performance of insulating paper, nano titanium dioxide (TiO2) treated with dopamine hydrochloride was coated with nano-fibrillated cellulose to get a multiple mixed filler (PDA-TiO2@NFC). Then the multiple mixed filler was filled into the cellulose insulating paper, and a sandwich structure insulating paper modified by different multiple mixed fillers was prepared. The optimal concentration of multiple mixed fillers was explored, and the tensile strength, DC volume resistivity, breakdown characteristics, and space charge of the modified insulating paper with different multiple mixed fillers were analyzed. The results show that when the multiple mixed fillers concentration is 0.5%, compared with the unmodified insulating paper, the tensile strength of the modified insulating paper increases by 17.90%, the AC and DC breakdown strentgh of oil-paper increase by more than 17%, and the injection of space charge can be effectively inhibited. The effect of multiple mixed fillers on the DC volume conductivity is not obvious. The mechanical properties and electric strength improvement of the sandwich structure insulating paper prepared using this method are significant, which provides reference for jointly improving the performance of insulating paper.

oil-paper  /  sandwich structure  /  polydopamine  /  nano-TiO2  /  nano-fibrillated cellulose
Yuanxiang ZHOU, Huijuan WANG, Xin HUANG, Xingjin ZHANG, Lei XUE. Preparation and insulating properties of multiple mixed-modified insulating paper[J]. Insulating Materials, 2023 , 56 (3) : 1 -8 . DOI: 10.16790/j.cnki.1009-9239.im.2023.03.001
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doi: 10.16790/j.cnki.1009-9239.im.2023.03.001
  • Receive Date：2022-03-08
  • Online Date：2025-11-21
  • Published：2023-03-20
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  • Received：2022-03-08
  • Revised：2022-04-25
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Affiliations
    1The Wind Solar Storage Division of State Key Laboratory of Control and Simulation of Power System and Generation Equipment, School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
    2State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.03.001
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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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