Raw Data of Magnetic Test for Variation of Microcarbonyl iron of Loading Natural Rubber Nanocomposites
Description
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.
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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. The samples were prepared in the range of 2mm x 2mm to 3mm x 3mm, as small as possible to suit the 4mm x 4mm tube holder of the VSM. There are two batches of sample of Batch A with different nanocarbon content and Batch B with different microcarbonyl iron content. Before conducting the test, the weight of each sample was determined in gram by an analytical balance. A small amount of high vacuum grease was used to attach the samples to the tube holder. Then, the tube holder was inserted in the VSM. The input data such as weight of the samples and the magnetic moment were recorded in the computer system. Thus, the test was run until the result obtained. For comparison, pure microcarbonyl iron was checked in the powder state. The microcarbonyl iron was sealed with the transparent adhesive tape on both sides before being tested to ensure fine powder adheres throughout the test.