State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China

Laboratory of, China

State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China

Laboratory of, China
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He P.,State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China | Huang B.,State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China | Liu L.,State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China | Huang Q.,State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China | Chen T.,State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha410083 China
Polymer Composites | Year: 2015

Graphene oxide (GO) was used to modify the surface of carbon fiber layers through electrophoretic deposition, forming a multiscale reinforcement fabric. By adjusting the experimental parameters, the resulting GO-carbon fabric showed productive and homogenous distribution of thin and less-agglomerate GO platelets on carbon fiber surface, remarkably enlarging the surface area and roughness of carbon fabric. To investigate the effect of GO sheets on composites, GO-carbon fabric and carbon fabric-reinforced hierarchical epoxy resin composites were respectively manufactured. Mechanical tests demonstrated that after introducing GO flakes on carbon fabric, both the flexural strength and interlaminar shear strength of composite had achieved an increase, especially the interlaminar shear strength rising by 34%. Through fractography analysis, it was found that in pure carbon fabric-reinforced epoxy composite, the fiber/matrix debonding fracture mechanism predominated, while after the GO decoration on carbon fiber surface, the composite featured a stronger interfacial bonding, leading to the enhancement in mechanical properties of hierarchical epoxy resin composite. POLYM. COMPOS., 2014. © 2014 Society of Plastics Engineers © 2014 Society of Plastics Engineers December 2014 10.1002/pc.23321 Article Articles © 2014 Society of Plastics Engineers.

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