RT Conference Proceedings
SR 00
A1 Aguirre de Cárcer, I.
A1 González Prolongo, Margarita
A1 Salom Coll, Catalina
A1 Parrado, J.
A1 Moriche, R.
A1 González Prolongo, Silvia
T1 Thermal and mechanical properties of self-healing epoxy/graphene nanocomposites
YR 2017
FD 5-8 Jun 2017
SP 1399
OP 1408
K1 Selfhealing, graphene, termal-mechanical-electric properties
AB Self-healing epoxy, graphene, thermal-mechanical-electrical properties. Abstract. The goal of the present work is to analyze the influence of the type of graphene and graphene content on the thermo-mechanical properties of an epoxy nanocomposite formed by an epoxy resin base on diglycidyl ether of bisphenol A (DGEBA) and 4-aminophenyl disulphide (AFD) as curing agent. This is a ?dynamic? epoxy matrix (vitrimer), which has reversible crosslinks based on aromatic disulphide bonds. The idea is to take the advantage of the high thermal conductivity of graphene nanocomposites to promote the self-healing. The study of the epoxy-graphene systems was carried out using two types of un-functionalized graphene with different nanoplatelet dimensions. Dispersions of GNPs in the DGEBA were studied by Differential Scanning Calorimetry (DSC) in order to investigate the curing reaction. Dynamic Mechanical Thermal Analysis (DMTA) and tensile stress-strain measurements were performed to compare the glass transition temperature, the storage modulus in the glassy and rubber states, the Young modulus, deformation at break, mechanical strength and toughness. Electrical conductivity and combined tensile stress-electrical resistance experiments are reported for these nanocomposites.
T2 VIII ECCOMAS Thematic Conference on Smart Structures and Materials
ED Madrid . ETS I Aeronautica y Espacio. UPM
AV Unpublished
LK https://oa.upm.es/50753/
UL https://eventos.upm.es/11220/detail/smart-2017.html