Stretchable polyurethane sponge reinforced magnetorheological material with enhanced mechanical properties

被引：42

作者：

Ge, Lin ^{[1
]}

Xuan, Shouhu ^{[1
]}

Liao, Guojiang ^{[1
]}

Yin, Tiantian ^{[1
]}

Gong, Xinglong ^{[1
]}

机构：

[1] Chinese Acad Sci, Univ Sci & Technol China, Dept Modern Mech, Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China

来源：

SMART MATERIALS AND STRUCTURES | 2015年 / 24卷 / 03期

基金：

中国国家自然科学基金;

关键词：

magnetorheological; 3D network supporting; polyurethane sponge; MR FLUID; COMPOSITES; FOAM; PERFORMANCE; ELASTOMER; DAMPERS; DESIGN; FIBER;

D O I：

10.1088/0964-1726/24/3/037001

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A stretchable magnetorheological material (SMRM) consisting of micro-meter carbonyl iron (CI) particles, low cross-linking polyurethane (PU) polymer and porous PU sponge has been developed. Due to the presence of the PU sponge, the high-performance MR material can be reversibly stretched or bent, just as MR elastomers. When the CI content increases to 80 wt%, the magnetic induced modulus of the MR material can reach as high as 7.34 MPa and the corresponding relative MR effect increases to 820%. A possible strengthening mechanism of the SMRM was proposed. The attractive mechanical properties make the SMRM a promising candidate for future high-performance devices.

引用

页数：8

共 28 条

[21] Passive and MR fluid-coated auxetic PU foam - Mechanical, acoustic, and electromagnetic properties [J].