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Highly compressible behavior of polymer mediated three-dimensional network of graphene foam
Siva K. Reddy,Darim B. Ferry,Abha Misra
RSC Advances Pub Date : 09/23/2014 00:00:00 , DOI:10.1039/C4RA08321K
Abstract

The compressive behavior of graphene foam (GF) and its polymer (polydimethyl siloxane) (PDMS) infiltrated structure are presented. While GF showed an irreversible compressibility, the GF/PDMS structure revealed a highly reversible mechanical behavior up to many cycles of compression and also possesses a six times higher compressive strength. In addition, the strain rate demonstrated a negligible effect on both the maximum achieved stress and energy absorption in the GF/PDMS structure. The mechanical responses of both GF and GF/PDMS structure are compared with carbon nanotubes based cellular structure and its composite with PDMS, where GF/PDMS presented a dominant mechanical characteristic among other carbon based micro foam structures. Therefore, the improved mechanical properties of GF/PDMS suggest its potential for dampers, cushions, packaging, etc.

Graphical abstract: Highly compressible behavior of polymer mediated three-dimensional network of graphene foam
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