Evaluation of mechanical properties in thermoplastic polymer natural rubber filled with hybrid fillers

Ahmad, Azam Shah (2021) Evaluation of mechanical properties in thermoplastic polymer natural rubber filled with hybrid fillers. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Growth in electronic devices nowadays has created a new form of pollution which is radio frequency interference (RFI) or electromagnetic interference (EMI) that can cause equipment to malfunction and cause interference towards the components. This is applicable in all sectors such as industrial, military, commercial and consumer sectors. Therefore, the usage of EMI shielding is needed to prevent this pollution from occurring is needed. The nanofillers that is used in this study are graphene nanoplatelet (GNP) and carbon nanotube (CNT). They will be employed in combination with carbon black to evaluate how the hybridization affects the properties of PP/NR thermoplastic elastomers. PP/NR of 75/25 is predicted to have better impact strength but have lower tensile, Young’s modulus and hardness compared to pure PP. PP/NR composition is at 75/25 with 30 phr of carbon black and 1 phr of CNT and GNP. In the evaluation based on critical review, the main focus is the mechanical and physical properties of the composites. There are two different pair of hybrid fillers which is CB/CNT and CB/GNP. In the postulated result, PP/NR with hybrid fillers of CB/CNT has the same tensile strength as CB/GNP blend, better Young’s modulus, and better impact strength compared to CB/GNP. Meanwhile CB/GNP has better hardness. The conclusion is supported by the scanning electron microscopy and X-Ray Diffraction analysis.

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