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Dielectric and Thermal Conductive Properties of P(VDF-HFP)-BNNS Nanocomposite with Sandwich Structure
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Wenyue ZHENG, Lulu REN, Can WANG, Xuetong ZHAO, Lijun YANG, Ruijin LIAO
Insulating Materials | 2021, 54(6) : 32 - 37
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Insulating Materials | 2021, 54(6): 32-37
• Special Issue on Thermal Conductive Insulating •
Dielectric and Thermal Conductive Properties of P(VDF-HFP)-BNNS Nanocomposite with Sandwich Structure
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Wenyue ZHENG, Lulu REN, Can WANG, Xuetong ZHAO, Lijun YANG, Ruijin LIAO
Affiliations
  • State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Published: 2021-06-20 doi: 10.16790/j.cnki.1009-9239.im.2021.06.005
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In order to improve the dielectric properties, insulating properties, and thermal conductivity of polymer composites comprehensively, on the basis of boron nitride nanoplates (BNNS) modified polyvinylidene fluoride hexafluoropropylene(P(VDF-HFP)), we prepared a three-layer (P(VDF-HFP)/P(VDF-HFP)-BNNS/P(VDF-HFP)) composite by layer by layer solution casting method, the bottom and top layer were the P(VDF-HFP) film, and the middle layer was the modified P(VDF-HFP) film with 0, 1%, 3%, 5% volume fraction of BNNS, respectively. The properties of the composites were analyzed. The results show that compared with the pure P(VDF-HFP) and the single layer composite films modified with 1% BNNS, the dielectric properties of the three-layer polymer material modified with 1% BNNS is improved obviously, its dielectric constant and dielectric loss factor is 8.52 and 0.022 at 1 000 Hz, respectively. Its electrical breakdown property and thermal conductivity are more excellent, the electric strength is 452.6 MV/m, which is 17.3% and 24.9% higher than that of the pure P(VDF-HFP) and the single layer composite films modified with 1% BNNS, respectively, and its thermal diffusion rate is 0.04 mm2/s, which is 25% and 5.3% higher than that of the pure P(VDF-HFP) and the single layer composite films modified with 1% BNNS, respectively.

polyvinylidene fluoride hexafluoropropylene  /  boron nitride nanosheet  /  dielectric properties  /  electric strength  /  thermal conduction
Wenyue ZHENG, Lulu REN, Can WANG, Xuetong ZHAO, Lijun YANG, Ruijin LIAO. Dielectric and Thermal Conductive Properties of P(VDF-HFP)-BNNS Nanocomposite with Sandwich Structure[J]. Insulating Materials, 2021 , 54 (6) : 32 -37 . DOI: 10.16790/j.cnki.1009-9239.im.2021.06.005
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Year 2021 volume 54 Issue 6
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doi: 10.16790/j.cnki.1009-9239.im.2021.06.005
  • Receive Date：2020-12-07
  • Online Date：2026-03-03
  • Published：2021-06-20
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  • Received：2020-12-07
  • Revised：2021-03-04
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    State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
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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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