Mechanical reinforcement and thermal conductivity in expanded graphene nanoplatelets reinforced epoxy composites
2012 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 531, 6-10 p.Article in journal (Refereed) Published
Influence of reinforcements on mechanical and thermal properties of graphene nanoplatelets/epoxy composites is investigated. Amine functionalized expanded graphene nanoplatelets (EGNPs) were dispersed within epoxy resins using high-pressure processor followed by three roll milling. Functionality on the EGNPs was confirmed with FTIR and micro-Raman spectroscopy. Bending and nano-mechanical testing was performed on the composites. Incorporation of EGNPs improved the flexural modulus and hardness of the composite and increased fracture toughness by up to 60%. Marked improvement was observed in thermal conductivity of the composites reaching 36% at 2 wt.% loading. Functionalized EGNPs exhibited significant improvements indicating favorable interaction at EGNPs/polymer interface.
Place, publisher, year, edition, pages
2012. Vol. 531, 6-10 p.
Other Chemistry Topics
IdentifiersURN: urn:nbn:se:kth:diva-160159DOI: 10.1016/j.cplett.2012.02.006ISI: 000301931800002ScopusID: 2-s2.0-84862821580OAI: oai:DiVA.org:kth-160159DiVA: diva2:788975
QC 201502182015-02-172015-02-172015-02-18Bibliographically approved