Stretchable and magneto-sensitive strain sensor based on silver nanowire-polyurethane sponge enhanced magnetorheological elastomer

By Tao Hu, Shouhu Xuan, L. Ding, Xiu-mei Gong. Materials & Design (1980-2015), 2018

167 citations recorded by the source corpus.

Abstract This work reported a stretchable, compressible and magneto-sensitive strain sensor based on conductive magnetorheological elastomer (MRE) containing silver nanowires (AgNWs) dip-coated polyurethane sponge, carbonyl iron particles and polydimethylsiloxane (PDMS) matrix. The mechanic-electric-magnetic coupling properties of conductive MRE were investigated and they were significantly influenced by mechanical properties of PDMS matrix and the AgNWs content. By increasing curing agent weight ratio, the cross-linking density of the PDMS increased thus the magneto-induced modulus decreased. The MRE was able to be used in the strain sensors, because its relative resistance variation reached 91.8% and 67.6% when 20% tensile strain and 10% compressive strain were applied. By applying a 428 mT magnetic field, the relative resistance of MRE sensor increased to 200%. Based on the experimental results, a possible mechanism was proposed to investigate the mechanic-electric-magnetic coupling sensing characteristics. Finally, the MRE sensors can be integrated on a shoe to detect the foot motion, demonstrated this material was promising in the intelligent devices like artificial skin, composite electrodes and soft sensor.

Subfields: Biomedical Engineering, Civil and Structural Engineering, Cognitive Neuroscience

View Paper: https://www.semanticscholar.org/paper/466effd0c249b0bb9d814da258e586fca7871b1e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

  1. Mokarram Hossain
  2. A. Bastola

In Civil and Structural Engineering

  1. A. Bastola
  2. Mokarram Hossain

Citations in the corpus