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Study on the Properties of Meta-aramid Spinning Stock Solution Coated Aramid Insulation Paper |
Received:November 12, 2022 |
DOI:10.11980/j.issn.0254-508X.2023.07.001 |
Key Words:aramid paper aramid spinning stock solution coating mechanical properties insulating properties |
Fund Project:国家自然科学基金(22008146);陕西省重点研发计划(2021ZDLGY14-05);国家留学基金委(202108610176)。 |
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Abstract:This study utilized meta-aramid spinning stock (MASS) solution, which was homologous to meta-aramid paper, to coat and enhance the aramid paper. The results showed that the MASS solution caused fiber swelling, resulting in increased dimensions and significantly improved the interfacial bonding between fibers, reducing paper porosity, and promoting densification of the aramid paper. Additionally, the MASS solution formed a dense protective film on the surface of the paper, greatly enhancing the mechanical and insulation properties of the aramid paper. Compared to the original aramid paper, the tensile strength, modulus, internal bonding strength, and tear index of the enhanced aramid paper were improved by 0.8, 0.6, 1.7, and 0.9 times, respectively. The breakdown strength of the enhanced aramid paper increased by 1.9 times compared to the original aramid paper, reaching 26.5 kV/mm. |
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