| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자가공/복합재료/재활용 |
| 제목 |
Effects of magnetic particle concentration on magneto-mechanical bending of vitrimer composite micropillar arrays |
| 초록 |
Vitrimers exhibit outstanding mechanical performances in comparison with thermoplastic polymers and reprocessability via exchange reaction of covalent adaptive networks. In this study, we synthesized magnetic micropillar arrays by embedding hard magnetic particles into epoxy vitrimer that can facilitate magnetization of the composites. By applying an external magnetic field, magneto-mechanical bending actuation is achieved for the micropillar arrays. We discuss the influence of magnetization and mechanical properties on the bending deformation of the magnetic vitrimer composites depending on the concentration of magnetic particles. Through the investigation of structure-property relationship, we identified an optimum magnetic particle concentration which can maximize the magneto-mechanical bending of micropillar arrays. Finally, we demonstrate shape retention of bent micropillar arrays via dynamic covalent bonding of vitrimer. |
| 저자 |
문호준, 이재경, 조웅비, 전지수, 박정은, 위정재
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| 소속 |
인하대 |
| 키워드 |
vitrimer composite; magnetic particles; micropillar arrays; magneto-mechanical relationship
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| E-Mail |
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