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Graphene/Polypropylene nanocomposites were prepared at different filler loading and different average surface diameter 5, 15 and 25µm of graphene nanoplatelets by using Haake Minilab mixer at 180 o C and rotor speed 50rpm.Besides, Haake MiniJet is used to obtain dumbbell shape specimen.The effect of filler loading and average surface area of filler in PP/GnP composites on Raman spectrum and tensile properties were studied.Raman spectrum of graphene particles indicate three major spectrums such as D, G and 2D band.In addition, PP/GnP composites shows the Raman band shift quite strong by increasing GnP loading.In general, increased of graphene nanoplatelets loading have increased the value of modulus of elasticity, whereas tensile strength, elongation at break of composites reduced.
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Ahmad et al. (2014) studied this question.
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