Effect of Modified Graphene Addition on the Electrical Properties of Epoxy Resin Composite

Li Li Wu; Xiang Lv; Chao Can Zhang

doi:10.4028/www.scientific.net/AMR.239-242.55

Paper Titles

Wear Characterization of Thermal Sprayed and Fused Fe-Ni-Cr Alloy Coatings with the Addition of CeO₂
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The Preparation, Characterization, and Photocatalytic Activities of Co-TiO₂
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Structure Evolution of the Atomized Powders of Fe-25Cr-3.9C Alloy with Addition of Ni and B Elements
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Annealing Treatment for Superplastic Forming of Twin Roll Casted AZ31 Magnesium Sheet
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Effect of Modified Graphene Addition on the Electrical Properties of Epoxy Resin Composite
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Synthesis and Properties of Potassium-Containing Poly(Acrylic Acid Sodium-Co-Acrylamide)Fly Ash-Illite Superabsorbent Composite
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Synthesis and Electrical Properties of End-Functionalized Poly(N-Isopropylacrylamide) with β-Cyclodextrin and its Ferrocene Inclusion Complex
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Role of Crystallitic Carbon in the Preparation of Mg-Based Hydrogen Storage Materials by Reactive Milling
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Study on CO₂ Laser Surface Hardening of 17-4PH Stainless Steel
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Effect of Modified Graphene Addition on the Electrical Properties of Epoxy Resin Composite

Abstract:

Graphene normally has weak interface compatibility to organics. In this paper, the surface of graphene is modified in order to improve its compatibility with polymer matrixes. Therefore, a Silane Coupling Agent(SCA) γ-Glycidoxypropyltrimethoxysilane is used to modify graphene. The results of the TEM, FTIR and sedimentation test show that SCA grafting can improve the graphene’s dispersion stability in polar organic solvent. Then modified graphene is added to epoxy resin to obtain an epoxy resin composite. The conductivity of the epoxy resin compostie can reach 8.00E-009 s/m. When additional percentage of SCA is over 0.5%, the dielectric constant (ε) has a remarkable increase.