In this paper, we report load transfer and mechanical properties of chemically derived single layer graphene (SLG) as reinforcements in poly (dimethyl) siloxane (PDMS) composites. Shear mixing reduced graphene sheets in polymers resulted in a marked decrease of the 2D band intensity due to doping and functionalization. Raman G mode shifts of 11.2 cm-1/% strain in compression and 4.2 cm-1/% strain in tension are reported. Increases in elastic modulus of PDMS by 42%, toughness by 39%, damping capability by 673%, and strain energy density of 43% by the addition of 1 wt% SLG in PDMS are reported.
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: May 12, 2013
Pages: 502 - 505
Industry sector: Advanced Materials & Manufacturing
Topicss: Advanced Materials for Engineering Applications, Composite Materials