Abstract

Electromagnetic properties of natural rubber (NR) incorporated with recycled neodymium-iron-boron (NdFeB) powder from 0 to 120 phr by the two-roll mill technique were studied. The remanent magnetization, coercive field and logarithmic value of the electrical permittivity were linearly increased with the NdFeB loading according to the rule of mixture suggesting that interactions between NdFeB clusters were moderate. The addition of 120 phr NdFeB also increased the reflection loss of NR.