Journal
NANOCOMPOSITES
Volume 3, Issue 3, Pages 85-96Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/20550324.2017.1365414
Keywords
Epoxy; Graphene; Nanocomposite; Toughening; Mechanical properties; Fracture toughness
Funding
- National Physical Laboratory (NPL) of Kingston University London
- Faculty of Science, Engineering and Computing (SEC) of Kingston University London
- Strategic Capability programme of the National Measurement System of the U.K. Department of Business, Innovation and Skills [118616]
Ask authors/readers for more resources
This paper reports improvement in the fracture properties of epoxy nanocomposites using plasma functionalized graphene nanoplatelets (f-GNP) at low filler content. Various mechanical tests were performed on a series of f-GNP/epoxy at low nanofiller loading to assess the effect of the nanofiller on mechanical properties. Most importantly, a significant enhancement in fracture toughness is achieved without compromising the tensile and thermal properties of the nanocomposites. The fracture toughness of neat epoxy resin was increased by over 50% with the incorporation of 0.25 wt% f-GNP loading, obtaining a value of 245 J m(-2), while the neat epoxy indicated a value of 162 J m(-2). The glass transition temperature (T-g) and coefficient of thermal expansion (CTE) both showed a slight increase of 3% and 2%, respectively, both at 1 wt% f-GNP loading. These enhancements are competitive with current literature results on nanocomposites, but at significantly lower filler content. We therefore demonstrate that f-GNPs are capable of providing effective toughening of epoxy resins, while maintaining other tensile and thermal properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available