Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 73, Issue 6, Pages 854-858Publisher
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2013.03.003
Keywords
Graphene; Polyurethane acrylate; Nanocomposite; UV-curable; Thermo-mechanical analysis
Funding
- National Natural Science Foundation of China [51036007]
- National Natural Science Foundation of China, (NSFC) [61079015]
- Civil Aviation Administration of China (CAAC) [61079015]
- CAS
- USTC Special Grant for Postgraduate Research, Innovation and Practice
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Functionalized graphene nanosheets (f-GNSs) were synthesized by a simple covalent functionalization of graphene with 3-methacryloxypropyl trimethoxysilane (MPTES). The results from FUR, XPS and XRD showed that MPTES was successfully attached onto the surface of graphene. Functionalized graphene/polyurethane acrylate (f-GNS/PUA) nanocomposites were prepared by UV radiation of PUA with f-GNS. The onset thermal degradation temperature of f-GNS/PUA nanocomposite was increased by 16 degrees C, at an f-GNS content of 1 wt%. Meanwhile, the storage modulus and glass transition temperature of the nanocomposites were enhanced by incorporating f-GNS into the PUA. This is believed to be attributed to that the covalent functionalization of graphene can improve both the dispersion of f-GNSs in the polymer matrix and the interfacial interactions between f-GNSs and PUA. (C) 2013 Elsevier Ltd. All rights reserved.
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