| dc.description.abstract | Graphene based epoxy composite was prepared by using mechanical mixing and was
tested with variety of testings and characterization. Firstly, the effect of graphene content on properties of epoxy/graphene composite was studied. With addition of graphene, properties such as density, flexural strength, flexural modulus, fracture
toughness, electrical conductivity and thermal stability were enhanced. The percolation
threshold was recorded at 0.8 vol.% of graphene content. Secondly, the effect of
recycled natural rubber (rNR) content on properties of epoxy/rNR/graphene composite
was investigated. At 5 vol.% of rNR content, the desired optimum properties such as
density, flexural strength, flexural modulus, fracture toughness and electrical
conductivity were obtained. Excessive incorporation of rubber content caused
agglomeration and voids which deteriorated mechanical properties of the composite.
Lastly, the effect of graphene content on properties of epoxy/rNR/graphene composite
with fixed at 5 vol.% of rNR was determined. It can be confirmed that the percolation
content was reduced from 0.8 vol.% to 0.6 vol.%. The epoxy/rNR/graphene composite
exhibits the greatest electrical conductivity and mechanical properties including flexural
strength, flexural modulus and fracture toughness. | en_US |
