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Preparation and Properties of Polyarylate Fiber Insulating Paper
Received:April 29, 2021  
DOI：10.11980/j.issn.0254-508X.2021.10.004
Key Words:polyarylate fiber paper  insulating properties  mechanical properties
Fund Project:中央高校基本科研业务费专项资金资助（2232021G-06）。
Author NameAffiliationPostcode
ZHAO Zhongzheng Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
JIN Wenbin Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
LUO Peidong Ningbo Higlar New Material Technology Co.， Ltd.， Ningbo， Zhejiang Province， 315000 315000
SONG Dan Ningbo Higlar New Material Technology Co.， Ltd.， Ningbo， Zhejiang Province， 315000 315000
WANG Yanping Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
WANG Yimin Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
NI Jianhua Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
HE Yong Innovation Center for Textile Science and Technology， Donghua University， Shanghai， 201620 201620
XIA Yumin* Engineering Research Center of Technical Textile， Ministry of Education， College of Materials Science and Technology， Donghua University， Shanghai， 201620 201620
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Abstract:Polyarylate microfiber was first prepared by the mechanical shear method from polyarylate chopped fiber. Then the polyarylate fiber base paper was prepared by wet dispersion of polyarylate microfiber assisted vacuum filtration. Finally， polyarylate fiber paper was prepared by hot-pressing progress from polyarylate fiber base paper. The effects of different hot-pressing temperatures on the mechanical properties and dielectric properties of polyarylate fiber paper were studied. The results demonstrated that when the hot-pressing temperature was 260℃， the mechanical properties and electric strength of polyarylate fiber paper reached the highest. The tensile strength and elastic modulus were 65 MPa and 1.32 GPa， respectively， and the electrical strength reached 43.1 kV/mm. At the same time， polyarylate fiber paper presented high thermal stability， low dielectric constant and dielectric loss.
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