| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Shape Memory Effects in Polyurethanes Containing Superparamagnetic Nanoparticles |
| 초록 |
A series of shape memory polyurethane (SMPU) was synthesized with the addition of NiZn-ferrite(NiZnFe2O4). Poly(tetramethylene glycol)(PTMG) and isophorone diisocyanate(IPDI) were used to synthesize the SMPU. Magnetic property of nanoparticle is measured by MPMS. Nanoparticle was chemically modified to improve dispersion, which was confirmed by TEM. The properties of Ni0.7Zn0.3Fe2O4-polyurethane nanocomposite were characterizes by tensile, dynamic mechanical thermal, thermal stability, electric resistivity and cyclic tests. It was found that the shape memory effect of polyurethane nanocomposite could be induced by inductive heating in an alternating magnetic field. The maximum temperature achievable by inductive heating in a specific magnetic field was observed. |
| 저자 |
정민아1, 김은영2, Jan-Erik Damke3, 김병규1
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| 소속 |
1부산대, 2부경대, 3IFAM-Fraunhofer |
| 키워드 |
SMPU; Magnetic properties; nanoparticles
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| E-Mail |
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