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Study on Electric Strength of Meta-aramid Paper Improved by Coating Poly(m-phthaloyl-m-phenylenediamine) Slurry
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Siqi GU1, 2, Zuming HU1, 2, Junrong YU1, 2, Yan WANG1, Jing ZHU1
Insulating Materials | 2022, 55(9) : 28 - 34
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Insulating Materials | 2022, 55(9): 28-34
• Material Research •
Study on Electric Strength of Meta-aramid Paper Improved by Coating Poly(m-phthaloyl-m-phenylenediamine) Slurry
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Siqi GU1, 2, Zuming HU1, 2, Junrong YU1, 2, Yan WANG1, Jing ZHU1
Affiliations
  • 1College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
  • 2State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
Published: 2022-09-20 doi: 10.16790/j.cnki.1009-9239.im.2022.09.005
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The surface of meta-aramid paper was coated with poly(m-phthaloyl-m-phenylenediamine) (PMIA) slurry with different solid contents, and the coated meta-aramid paper was dried. The morphology, mechanical properties, dielectric properties, and electric strength of the modified meta-aramid paper were characterized by cold field emission scanning electron microscope, universal testing machine, broadband dielectric impedance spectrometer, and electric strength testing instrument. The results show that the PMIA slurry can change the structure of aramid paper and decrease the internal void of aramid paper. When the solid content of PMIA slurry is 10%, the transverse and longitudinal tensile strength of meta-aramid paper increases to 51.3 MPa and 94.4 MPa, respectively, the dielectric constant of meta-aramid paper is 2.07, and the electric strength of meta-aramid paper increases to 29.83 kV/mm. The mechanical properties and electric strength of the meta-aramid paper coated with PMIA slurry are better than those of original aramid paper. After treated at 180℃, the mechanical properties and electric strength of the modified meta-aramid paper are still better than those of original meta aramid paper, which can meet the applications of aramid paper in higher electric field environment and further broaden the applications field of aramid paper.

meta-aramid paper  /  poly(m-phthaloyl-m-phenylenediamine)  /  surface coating  /  electric strength
Siqi GU, Zuming HU, Junrong YU, Yan WANG, Jing ZHU. Study on Electric Strength of Meta-aramid Paper Improved by Coating Poly(m-phthaloyl-m-phenylenediamine) Slurry[J]. Insulating Materials, 2022 , 55 (9) : 28 -34 . DOI: 10.16790/j.cnki.1009-9239.im.2022.09.005
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Year 2022 volume 55 Issue 9
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.09.005
  • Receive Date：2021-09-01
  • Online Date：2025-12-23
  • Published：2022-09-20
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  • Received：2021-09-01
  • Revised：2021-10-13
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Affiliations
    1College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
    2State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.09.005
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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
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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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