Guohua Chen Huaqiao University, China
Guohua Chen is a professor in Polymer Science & Engineering Department of School of Materials Science & Engineering at Huaqiao University. He received his B.S. degree in Polymer Chemistry at Xiamen University in 1984, and M.S. degree in Polymer Science at Jilin University in 1987. He gained a Ph.D. degree in Materials Science & Engineering in 1999 from Tianjin University. He worked as visiting scholar at University of Michigan (USA) during 2001-2002.
His research involves graphene preparation, application and polymer based nanomaterials. He is one of the most veteran professors on Graphene and related materials in China.
He received New Century Excellent Talents in University in 2004.
Title：Novel Strategy Double the Toughness of Polycarbonate-graphene Composite
SymposiumPolymer
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Abstract
Based on the nanocavities, we succeeded to promote the toughness of polycarbonate composites with graphene nanoplates (GNP) and carbon black (CB). As compared with polycarbonate-CB or polycarbonate-GNP, the incorporation of hybrid fillers (GNP and CB) enhanced the notched impact toughness (100%) without sacrificing the elastic modulus, the tensile strength, or the hardness. Simultaneously, benefited from these small pores, the carbon-based fillers found much ease in forming conducting paths, delivering two to three orders of magnitude leap in electrical conductivities. Instead of using sophisticated lithography or assembly techniques, our progress was built on a thermal processing enabled nanofeature growth in bulk polymers, suggesting great ease in transplanting this mechanism to many other structural materials.
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