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Study on the Preparation and Performance of Aramid Nanofiber Reinforced Aramid Paper-based Insulating Material
Received:March 27, 2025  Revised:April 15, 2025
DOI:10.11981/j.issn.1000-6842.2026.01.124
Key Words:aramid nanofiber;aramid paper;insulating performance;mechanical properties
Fund Project:国家重点研发计划项目(2024YFB3713200);生物源纤维制造技术国家重点实验室开放基金资助课题(SKL202201)。
Author NameAffiliationPostcode
LIU Ruixiang* 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450 300450
SUN Jing 2Yantai Metastar Special Paper Co., Ltd., Yantai, Shandong Province, 264006 264006
ZHANG Junhua 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450
2Yantai Metastar Special Paper Co., Ltd., Yantai, Shandong Province, 264006 
264006
MA Yuying 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450 300450
YIN Zhiwei 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450 300450
WANG Xu 3College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan Province, 610065 610065
CHENG Bowen* 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450 300450
YANG Shuo* 1State Key Lab of Bio-based Fiber Materials, Tianjin Key Lab of Pulp and Paper, China Light Industry Key Lab of Papermaking and Biorefinery, China Textile Industry Key Lab of High-performance Fibers Wet-laid Nonwoven Materials, Tianjin University of Science and Technology, Tianjin, 300450 300450
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Abstract:
      This study mixed para-aramid nanofibers (ANF) with meta-aramid precipitated nanofibers (CXNF) to prepare an aramid nanofiber filler. The aramid nanofiber filler was incorporated into meta-aramid fiber, and combined wet forming processes and hot-pressing technology to produce high-performance aramid composite paper that could be used as an insulating material. The influence of aramid nanofiber filler composition and addition amount on the mechanical and electrical properties of aramid composite paper was investigated, further explored the reinforcement mechanism of aramid nanofibers in aramid composite paper. The results indicated that when the mass ratio of ANF to CXNF in the aramid nanofiber filler was 5∶5 and the filler addition amount was 9%, the prepared aramid composite paper exhibited a breakdown voltage of 785 V with a 16% improvement over meta-aramid paper. The breakdown strength reached 17.41 kV/mm with an 18% increase over meta-aramid paper. Besides, it showed significantly enhanced mechanical properties with tensile strength of 24.1 N/cm, and tearing resistance of 2.56 N, as well as lower dielectric constant and dielectric loss factor, achieving 2.572 F/m and 0.023 34 (1 MHz), respectively.
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