Stretchable polyurethane sponge reinforced magnetorheological material with enhanced mechanical properties. (3rd February 2015)

• Record Type: Journal Article
• Authors: Ge, Lin; Xuan, Shouhu; Liao, Guojiang; Yin, Tiantian; Gong, Xinglong
• Is Part Of: Smart materials and structures. Volume 24:Number 3(2015:Mar.)
• Publication Date: 2015-02-03
• Subjects: magnetorheological -- 3D network supporting -- polyurethane sponge; Smart materials -- Periodicals; Strucural design -- Periodicals; 620.11
• DOI: 10.1088/0964-1726/24/3/037001
• Languages: English
• ISSNs: 0964-1726

Abstract

Abstract: 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.