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Effects of Beating Degree and Carbon Fiber Content of Fibrillated PAN Fiber on Properties of Carbon Paper
Received:March 10, 2024  
DOI：10.11980/j.issn.0254-508X.2024.09.015
Key Words:polyacrylonitrile fiber pulp  beating degree  carbon fiber  tensile strength  carbon paper
Fund Project:广东省基础与应用基础研究基金项目（2019B151502043）；国家自然科学基金青年科学基金项目（22208069）。
Author NameAffiliationPostcode
ZHANG Qianqian School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
SONG Chenying School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
LI Hailong* School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
HU Jian School of Light Industry and Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640 510640
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Abstract:In this study， composite carbon paper was prepared from fibrillated polyacrylonitrile （PAN） fibers and PAN carbon fibers （referred to as carbon fiber） by wet forming process and carbonization treatment， and the effects of beating degree and carbon fiber content on the properties of carbon paper were explored. The results showed that the tensile strength of carbon paper was better with the decrease of carbon fiber content. With the increase of the fibrillation degree （beating degree） of PAN fibers， the tensile strength of carbon paper was better. The resulting carbon paper had excellent air permeability， as well as good flexibility and tensile strength at the same time. The carbon paper with the best overall performances had permeability of 465.4 mm/s and tensile strength of 2.0 MPa.
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