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Study on the Mechanics and Electrical Insulation Properties of ANFs/CS Insulating Composite Film
Received:August 17, 2022  
DOI：10.11980/j.issn.0254-508X.2023.04.008
Key Words:aramid nanofibers  chitosan  composite film  mechanical properties  insulation properties
Fund Project:国家自然科学基金项目（22178211）；浙江省‘尖兵’‘领雁’研发攻关计划资助（2022C01066）；陕西省重点研发计划项目（2021ZDLGY14-05）。
Author NameAffiliationPostcode
KOU Yajie School of Light Industry Science and Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Shaanxi University of Science and Technology， Xi'an， Shaanxi Province， 710021 710021
CHEN Shanshan School of Light Industry Science and Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Shaanxi University of Science and Technology， Xi'an， Shaanxi Province， 710021 710021
HUANG Jizhen School of Light Industry Science and Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Shaanxi University of Science and Technology， Xi'an， Shaanxi Province， 710021 710021
XU Xiaoxu School of Light Industry Science and Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Shaanxi University of Science and Technology， Xi'an， Shaanxi Province， 710021 710021
LU Zhaoqing* School of Light Industry Science and Engineering， Shaanxi Province Key Lab of Papermaking Technology and Specialty Paper， Shaanxi University of Science and Technology， Xi'an， Shaanxi Province， 710021 710021
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Abstract:Using aramid nanofibers （ANFs） as matrix and chitosan （CS） as reinforcing agent， ANFs/CS composite films were prepared by vacuum-assisted filtration technology. The densification of the films was improved by hot pressing to enhance the mechanical and electrical insulation properties of films. The results showed that the maximum tensile strength and the characteristic breakdown strength of ANFs/CS composite films reached 208 MPa and 62 kV/mm with 0.02 g chitosan loading， respectively， exhibiting the best performance. After hot pressing， the densification of ANFs/CS composite films was improved significantly. The maximum tensile strength and breakdown strength of ANFs/CS composite films reached 253 MPa and 109 kV/mm， respectively， which increased by 21.6% and 75.8% compared with the films before hot pressing.
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