Magnetorheology of Magnetic Poly(vinyl alcohol) Gels with High Mechanical Toughness

被引：14
|
作者：
Negami, Keisuke [1 ]
Mitsumata, Tetsu [1 ]
机构：
[1] Yamagata Univ, Dept Polymer Sci & Engn, Grad Sch Engn, Yonezawa, Yamagata 9928510, Japan
来源：
CHEMISTRY LETTERS | 2010年 / 39卷 / 06期
关键词：
DYNAMIC MODULUS; GIANT REDUCTION; ELASTOMERS; PARTICLES;
D O I：
10.1246/cl.2010.550
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A magnetic-field-sensitive gel that demonstrates both drastic changes in dynamic modulus and high mechanical toughness was obtained. The magnetic gel consists of cross-linked poly(vinyl alcohol) (PVA), iron oxide particles, and water. The storage and loss shear moduli of the magnetic gel remarkably increased by applying a magnetic field, similarly to magnetic carrageenan gels. Compression revealed high mechanical toughness of the magnetic PVA gel and the maximum strain of 0.64 was achieved without inducing permanent strain.
引用
收藏
页码：550 / 551
页数：2
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