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Performance of A766 Aramid Insulation Paper for Rail Transit
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Zhengsheng LI1, 2, Chuanjun TU1, Huan SONG2, Lei CHEN2, Xinglong LIU2
Insulating Materials | 2021, 54(5) : 21 - 26
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Insulating Materials | 2021, 54(5): 21-26
• Material Research •
Performance of A766 Aramid Insulation Paper for Rail Transit
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Zhengsheng LI1, 2, Chuanjun TU1, Huan SONG2, Lei CHEN2, Xinglong LIU2
Affiliations
  • 1College of Materials Science and Engineering, Hunan University, Changsha 410082, China
  • 2Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou 412007, China
Published: 2021-05-20 doi: 10.16790/j.cnki.1009-9239.im.2021.05.003
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Aiming at the application requirements of rail transit, we studied and compared the performance of A766 aramid insulation paper and the same types of aramid insulation paper at home and abroad. The results show that the composition and structure of A766 aramid insulation paper and the imported aramid insulation paper are basically the same. The temperature index of A766 aramid insulation paper is 223℃, the oxygen index is 30.2%, the smoke density is 1.4, and the smoke toxicity is 0.875, which meets the HL2 and HL2 of R22 and R23 fire rating standards. A766 aramid insulation paper has higher voltage withstand retention rate after immersion in water, the retention rate of 0.05 mm aramid insulation paper is 83.5%, and the retention rate of 0.13 mm aramid insulation paper is 73.8%. The Shawn’s experiment shows that the thermal oxygen ageing property resistance to copper/aluminum metal conductor of A766 aramid insulation paper is the same as that of the imported aramid insulation paper. Therefore, A766 aramid insulation paper can meet the application requirements of rail transit.

A766 aramid insulation paper  /  performance  /  application of rail transit  /  composition and structure
Zhengsheng LI, Chuanjun TU, Huan SONG, Lei CHEN, Xinglong LIU. Performance of A766 Aramid Insulation Paper for Rail Transit[J]. Insulating Materials, 2021 , 54 (5) : 21 -26 . DOI: 10.16790/j.cnki.1009-9239.im.2021.05.003
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Year 2021 volume 54 Issue 5
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.05.003
  • Receive Date：2020-07-17
  • Online Date：2026-03-03
  • Published：2021-05-20
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  • Received：2020-07-17
  • Revised：2020-08-17
Affiliations
    1College of Materials Science and Engineering, Hunan University, Changsha 410082, China
    2Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou 412007, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
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Number of
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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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