Effect of nano-filler graphene on nano-composite system of polystyrene-graphene
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By using N-methyl-2-pyrolidone (NMP) and tetrahydrofuran (THF) solvents, the yield of two-dimensional material graphene as carried out via a technique called liquid exfoliation, phases including dispersal of preponderant material (graphite), sonicating the elevated surface tension solvents and decontamination for the eradication of impurities and remnant were implied in this yield. Now, these progressions were implemented by the use of bath Sonicator, ultracentrifuge, and probe Sonicator. Few-layer graphene (FLG) was originated which fused into intricate architecture (polymer matrix) in order to yield nano-composites of polystyrene and graphene via the technique of solution forming at contrasting filler loadings. The study of the upshot of graphene nano-filler, at divergent wt% ages of graphene’s exfoliation at scanty percolation, i.e., (EG) (i = 0, 0.1, 0.3, 0.5, 0.7, 0.9) on mechanical, microstructural, thermal, and electrical properties of polystyrene matrix, was carried out. This was done with the help of atomic force microscopy (AFM), four-probe method, X-ray diffraction (XRD), scanning electron microscopy (SEM), and universal testing machine (UTM). The 1-μm occurrence of two-dimensional sheets of graphene was marked by the SEM outcomes, whereas the composite system that contains polystyrene crests and graphene planes was ascertained via XRD testing. The 0.757-nm thickness which clearly specified the two-dimensional sheets was reckoned by AFM. The maximum increase, in mechanical properties including ultimate tensile strength (UTS), modulus of elasticity (E), and percentage elongation at break point, was 74.75, 150, and 68.65% respectively as related to the pure sample of polystyrene that was accounted in this research at scanty percolation (EG = 0.9 wt%). These properties are the function of filler loading. Electrical conductivity and electrical resistivity were evaluated; an intensification of 121.26% at 0.9% in electrical conductivity of filler loading as related to pure polystyrene was accounted whereas the electrical resistivity was diminished up to 121.19% at the identical filler loading. The ultimate increase in the thermal conductivity was 123.71% at concentration 0.9 wt% of the filler as confirmed by thermal conductivity outcomes. The better dispersion of the filler in the matrix and higher interfacial contact between the filler and polymer create these increasing trends.
KeywordsLiquid exfoliation method Mechanical properties Graphene Electrical properties Thermal properties Nano-filler
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- 1.Castellanos-Gomez A (2016) Why all the fuss about 2D semiconductors? arXiv preprint arXiv 1604:06425Google Scholar
- 2.G. Qin and M. Hu, Diverse thermal transport properties of two-dimensional materials: a comparative review, in Two-dimensional materials-synthesis, characterization and potential applications: InTech, 2016Google Scholar
- 5.Li D, Muller MB, Gilje S, Kaner RB, Wallace GG (2008) Processable aqueous dispersions of graphene nanosheets. Nat Nanotechnol, Research Support, Non-U S Gov't 3(2):101–105Google Scholar
- 6.Wang X, Song L, Pornwannchai W, Hu Y, Kandola B (2013) The effect of graphene presence in flame retarded epoxy resin matrix on the mechanical and flammability properties of glass fiber-reinforced composites. Compos A: Appl Sci Manuf 53:88–96. https://doi.org/10.1016/j.compositesa.2013.05.017 CrossRefGoogle Scholar
- 10.Kuilla T, Bhadra S, Yao D, Kim NH, Bose S, Lee JH (2010) Recent advances in graphene based polymer composites. Prog Polym Sci 35(11):1350–1375. https://doi.org/10.1016/j.progpolymsci.2010.07.005 CrossRefGoogle Scholar
- 19.Hernandez Y, Nicolosi V, Lotya M, Blighe FM, Sun Z, De S, McGovern IT, Holland B, Byrne M, Gun'Ko YK, Boland JJ, Niraj P, Duesberg G, Krishnamurthy S, Goodhue R, Hutchison J, Scardaci V, Ferrari AC, Coleman JN (2008) High-yield production of graphene by liquid-phase exfoliation of graphite. Nat Nanotechnol 3(9):563–568. https://doi.org/10.1038/nnano.2008.215 CrossRefGoogle Scholar
- 20.Coleman JN, Lotya M, O'Neill A, Bergin SD, King PJ, Khan U, Young K, Gaucher A, De S, Smith RJ, Shvets IV, Arora SK, Stanton G, Kim HY, Lee K, Kim GT, Duesberg GS, Hallam T, Boland JJ, Wang JJ, Donegan JF, Grunlan JC, Moriarty G, Shmeliov A, Nicholls RJ, Perkins JM, Grieveson EM, Theuwissen K, McComb DW, Nellist PD, Nicolosi V (2011) Two-dimensional nanosheets produced by liquid exfoliation of layered materials. Science 331(6017):568–571. https://doi.org/10.1126/science.1194975 CrossRefGoogle Scholar