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Study on the Improved Properties of Meta-aramid Paper by Coating of Aramid Nanofibers |
Received:March 10, 2021 |
DOI:10.11980/j.issn.0254-508X.2021.09.003 |
Key Words:aramid paper coating aramid nanofibers (ANFs) paper structure strengthen and toughen |
Fund Project:国家重点研发计划(2017YFB0308300);国家自然科学基金(22008146);中国博士后科学基金(2021T140434,2020M683411);陕西省重点研发计划(2021ZDLGY14-05);陕西省自然科学基金(2020JQ-727)。 |
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Abstract:Aramid nanofibers (ANFs) were introduced as self-reinforcement and structural building blocks, and the reinforcement effect of aramid nanofibers coating on aramid paper was investigated in this study. The results showed that ANFs had the advantages of unique nano-scale structure, large aspect ratio and high specific surface area, which were easy to form a crosslinked network structure, and significantly improved the structure and performance of aramid paper. Compared with pristine aramid paper, the tensile strength, toughness, tear strength, and surface strength of 2.0% ANFs coated aramid paper were increased by 3.5 times, 14.3 times, 1.2 times, and 1.4 times, respectively. In addition, the water absorption was decreased by 18.7 times. This study paved the way of employing ANFs as excellent strengthening and toughening building blocks, and it had broad application prospects in the fields of special paper and composite material reinforcement. |
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