Effect of electron beam radiation on the dispersion of graphene nanoplatelets in nylon66 based polymer composites

Amran, Mohd Firdaus (2018) Effect of electron beam radiation on the dispersion of graphene nanoplatelets in nylon66 based polymer composites. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

	Text (24 Pages) Effect Of Electron Beam Radiation On The Dispersion Of Graphene Nanoplatelets In Nylon66 Based Polymer Composites.pdf - Submitted Version Download (2MB)
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Abstract

Nowadays, the world is filled with electromagnetic radiation that can damage the internal component of electronic devices, but it can also affecting the human health such as insomnia and headache. The EMI shielding material was used by absorption or reflection of electromagnetic radiation. The nylon66 and graphcne nanoplatelcts have been used in this research as an EMI shielding material. Graphene nanoplatelets has been used as a conductive filler to improve the characteristic of nylon66 polymer which is an outstanding conductor of heat and electricity and has interesting light absorption behaviour. The purpose of this study is to prepare and characterize the effect of electron beam radiation on the dispersion of graphene nanoplatelets in nylon66 polymer matrix. The Nylon66 GNP nanocomposites were produced by dry mixing. Followed by melt blending process, injection moulding and electron beam radiation applications. In this study, the percentage used of nylon66 is 100 wt% for control unfilled sample and 99.7 wt% for sample with addition of graphene nanoplatelets 0.3 wt% of filler addition. The test followed by formulating the sample with vinyltrimethoxysilane (VTMS) at 15% addition. Electron beam radiation was applied with various dosage which are 50,100,150,200 kGy. For the testing are physical analysis, thermal analysis, morphological analysis, electrical properties and gel content analysis. It was found that the 1OOkGy dosage of EB radiation was significantly possessed outstanding physical properties in term of their intensity of crystallinity, transmittance and absorption peak during group arrangement and viscosity of the produced sample. Besides, it was found that the electrical conductivity of the sample that exposed to EB radiation has increased due to good dispersion of GNPs and molecular bonding between GNPs-nylon66.For the SEM analysis,1OOkGy of EB radition shows good surface structure without any multilayer of the graphene nanoplatelets has been detected. The improvement in-terms morphological structure of graphene due to application of EB radiation has enhanced the interactivity of EMI shielding effectiveness for 50kGy and 1OOkGy dosage. At the end, this research has significantly important to be carried out as to provide the new ways to replace metal as an EMI shielding effectiveness.

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