Optimization of process condition on loading degree of magnetic composite sheet by lumen loading technique

Ahmad Nizam, Afiq Syazwi (2016) Optimization of process condition on loading degree of magnetic composite sheet by lumen loading technique. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

From the past generations until now, the usage of composite sheet keep increasing as the applications of the sheet are increasingly diversified. Nowadays, most of the magnetic composite sheets are made from polymer based material. Polymer material takes longer time to decompose, more expensive and not environmental friendly. As the technology evolved, magnetic composite sheet can be produced by using biomass waste from natural sources such as durian shell. According to the statistics done by The Department of Agricultural of Malaysia in 2012, durian plantation is the largest in Malaysia of about 100,614 hectars. To prevent the durian shell from waste, it can be used to produce magnetic composite sheet. In this research, durian shell is combined with magnetic particle to produce magnetic composite sheet. This magnetic sheet is more easily degraded and more environmental friendly compare to conventional paper. The magnetic sheet is prepared by using lumen loading method. The parameters that are important in order to achieve maximum magnetic properties are the amount of magnetite (Fe3O4), agitation speed and time of agitation. The optimization was carried out using 2 level factorial design method. The response of the design is degree of loading. Then, the magnetic sheets undergo a few analyses such as magnetic measurement, morphology analysis and X-ray diffraction measurement to confirm and support the result. From the experiment, it was found that the sample 3 with the amount of Fe3O4 of 3g, the agitation speed of 1300 rpm and the agitation time of 30 min has the highest loading degree of 92%. The sample 3 magnetic sheets undergo a few analyses to confirm the presence of the magnetic particles in the sheet. The magnetic sheet produced can be used for electromagnetic shielding that can prevent electromagnetic interference from sensitive electronics.

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