| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Hybridization of Hard Magnetic Nanorods with Soft Magnetic Microspheres for Enhancements of Magnetic Bending Actuation of Micropillar Arrays |
| 초록 |
Magnetic deformations of polymeric composites have been focused from the researchers with various advantages including fast response time and remote controllability. Recently, we have investigated geometric symmetry effects of micropillars on the magnetic bending deformation. Isosceles triangular micropillars are found ineffective to enhance bending degrees at a given magnetic flux density because the stress is already distributed within the micropillars. Here, we report hybridization of hard and soft magnetic particles as an effective strategy to enhance magnetic responsivity by introducing percolation and exchange coupling effects of magnetic components. Hard magnetic maghemite nanorods and soft magnetic iron microspheres are mixed and employed as composite fillers for elastomeric matrix within the micropillars. We will discuss magnetization and magnetorheological stress of the composite particles and their correlation with magnetomechanical actuation of the micropillars. |
| 저자 |
박정은, 권승혁, Qi Lu, 최형진, 위정재
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| 소속 |
인하대 |
| 키워드 |
magnetic actuation; magnetic particles; micropillars; shape-reconfiguration; reversibility
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| E-Mail |
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