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Effects of poly(ethyleneimine)adsorption on graphene nanoplatelets to the properties of NR/EPDM rubber blend nanocomposites

ABD RAZAK, JEEFFERIE and Haji Ahmad, Sahrim and Thevy Ratnam, Chantara and Mahamood, Mazlin Aida and Mohamad, Noraiham (2015) Effects of poly(ethyleneimine)adsorption on graphene nanoplatelets to the properties of NR/EPDM rubber blend nanocomposites. Journal of Materials Science. pp. 1-17. ISSN 1573-4803

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Abstract

The facile approach of non-covalent surface treatment utilizing poly(ethyleneimine) (PEI) polymer was applied to modify graphene nanoplatelets (GNPs). The effects of surface modification and various GNPs–PEI loadings to cure characteristic, mechanical, physical, and morphological properties of natural rubber (NR)/ethylene– propylene–diene–monomer (EPDM) blend nanocomposites were studied and compared to the unfilled NR/EPDM blend and blends filled with unmodified GNPs at similar loadings. We found that the modification of GNPs surface significantly influences the properties of NR/EPDM blends. The addition of GNPs significantly improved the blend’s processability, offering approximately a 104.30 % increase in tensile strength obtained with the addition of 5.00 wt% GNPs–PEI. A reduced swelling index of Qf/Qg in parallel with an increase in modified GNPs–PEI content revealed enhancements in terms of rubber–filler interactions between the NR/EPDM matrix and GNPs. These findings were further supported by X-ray diffraction, differential scanning calorimetry, thermogravimetry analysis, and fracture morphology by scanning electron microscope.

Item Type: Article
Subjects: T Technology > TS Manufactures
T Technology > TJ Mechanical engineering and machinery
Q Science > QD Chemistry
Q Science > QC Physics
Divisions: Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User: DR MOHD FADZLI BIN ABDOLLAH
Date Deposited: 03 Jul 2015 01:29
Last Modified: 03 Jul 2015 01:29
URI: http://eprints.utem.edu.my/id/eprint/14674

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