Performance Analysis of Magnetorheological Porous Fabric Composite

In this paper, magnetorheological (MR) porous fabric composites were prepared by using non-woven fabrics pretreated with lithium stearate. Due to the porous structure of non-woven fabric and the good stability of lithium stearate, the mechanical properties and sedimentation stability of the composite have been improved. The viscosity, shear stress and dynamic viscoelasticity of different samples were analyzed by rheological properties tests. The results indicate that the mechanical properties of the composite samples containing lithium stearate are improved compared with the MRF (magnetorheological fluid) sample, and its sedimentation stability under non-working conditions is also improved. However, with the increase of lithium stearate content, the improving effect of material performance gradually decreased. The experimental results show that when the magnetic flux density is 0.31 T, the shear stress of the MR porous fabric composite with 1 wt% lithium stearate is about 27 kPa, which increases by 51.1% compared with the MRF sample.

Automated summary

In this study, magnetorheological (MR) porous fabric composites were prepared by pretreating non-woven fabrics with lithium stearate. The rheological properties tests showed that the composite samples containing lithium stearate had improved mechanical properties and sedimentation stability compared with the MRF sample. However, the improvement effect of material performance gradually decreased with the increase of lithium stearate content.