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| Study on Micro-dissolution Mechanism of Aramid Nanofiber/Boron Nitride Nanosheet Composite Paper |
| Received:October 08, 2024 Revised:November 05, 2024 |
| DOI：10.11981/j.issn.1000-6842.2025.04.93 |
| Key Words:aramid;aramid nanofiber;boron nitride nanosheet;composite paper;micro-dissolution |
| Fund Project:云南省教育厅可降解塑料工程研究中心（KKPU202205001）；云南省中青年学术和技术带头人后备人才（202305AC160061）。 |
| Author Name | Affiliation | Postcode | | JIANG Haoming* | Faculty of Chemical Engineering， Kunming University of Science and Technology， Kunming， Yunnan Province， 650500 | 650500 | | HUANG Jizhen* | Faculty of Chemical Engineering， Kunming University of Science and Technology， Kunming， Yunnan Province， 650500 | 650500 | | LIU Yuxin* | Faculty of Chemical Engineering， Kunming University of Science and Technology， Kunming， Yunnan Province， 650500
Yunnan Province Education Department Degradable Plastic Engineering Research Center， Kunming， Yunnan Province， 650000 | 650000 | | LIU Mengyu | Faculty of Chemical Engineering， Kunming University of Science and Technology， Kunming， Yunnan Province， 650500 | 650500 | | LI Kai | Faculty of Chemical Engineering， Kunming University of Science and Technology， Kunming， Yunnan Province， 650500 | 650500 |
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| Abstract: |
| In this study， DMSO/H2O/KOH was used as the solvent to dissolve aramid nanofiber (ANF)/boron nitride nanosheet (BNNS) composite paper， to study the difference in the dissolution rate of ANF/BNNS composite paper with different BNNS contents， and to investigate the micro-dissolution law of ANF/BNNS composite paper. The results showed that the tensile strength of pure ANF paper was 48.8 MPa， the time required to increase from 25 ℃ to 70 ℃ was 6 s， and the dissolution thickness was 42.0 μm， while the tensile strength of ANF/BNNS composite paper with BNNS content of 20% was reduced to 34.5 MPa， and the time required to increase from 25 ℃ to 70 ℃ was only 2 s. The dissolution time was 3 h， and the dissolution thickness was 52.5 μm， which was 25% more than that of pure ANF paper. It was indicated that the addition of BNNS slightly reduced the mechanical strength of the ANF/BNNS composite paper， significantly improved the thermal conductivity of the ANF/BNNS composite paper， promoted the dissolution of the ANF/BNNS composite paper. |
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