Raw Data of Magnetic Test for Variation of Microcarbonyl iron of Loading Natural Rubber Nanocomposites

The performance of magnetic rubber device is dependent on mechanical and magnetic properties of composite rubber materials. A vibrating sample magnetometer (VSM) is an instrument to detect the magnetic properties. The magnetic field versus magnetization was carried out to study the magnetic characteristics of the nanocomposite samples. VSM Lakeshore 7404 Series was used to analysis the magnetic properties of nanocomposite material. In the present study, the samples were tested under two (2) variations; i) containing the same amount of magnetic fillers, which is about 30 pphr in the composites but vary in nanocarbon loading i.e. 0%, 1%, 3% and 5% and ii) samples containing the same amount of 1 pphr nanocarbon fillers, in the composites with different loading of microcarbonyl iron (MCI). the increasing of magnetic properties of the samples is not consistent with the increasing of nanocarbon loading as A1 has a higher magnetization value than A5, which is really contrast with the previous work (Zaborski et al., 2009). This phenomenon occurred because of the fillers are well dispersed in the compound A1. Zaborski et al. (2009) found that the magnetization retentively increase with higher filler content of iron oxides. It has been found that in general, the addition of iron nanoparticles enhances the MRE mechanical and magnetic properties. In fact, the addition of iron nanoparticles as a filler in the hard matrix along with 24% of dispersant agent has proved to create the composite material that exhibits the best properties.