Journal of Material Sciences & Engineering

SG Prolongo

Publications

• Research Article
  Adhesive Strength and Toughness Improvement of Epoxy Resin Modified with Polystyrene B-Polybutadiene-B-Poly (Methyl Methacrylate) Block Copolymer
  Author(s): SG Prolongo, MR Gude and A UrenaSG Prolongo, MR Gude and A Urena
  
  Polystyrene-b-polybutadiene-b-poly (methyl methacrylate) block copolymer (SBM) was incorporated into epoxy resin to access the nanostructures in epoxy thermosets, knowing the different miscibility of polymeric blocks on epoxy matrix during the curing treatment. The morphology of modified SBM/epoxy resins was examined by Transmission and Field Emission Gun Scanning Electron Microscopy (TEM and FEG-SEM), reveling a nanostructured epoxy matrix with a dispersed micro-scale phase. The modified resins presented enhanced flexural properties, which were dependent on the composition of blend. The resin reinforced with low SBM contents (2.5 and 5 wt%) presented high values of flexural modulus and strength, while the blend reinforced with higher SBM load (10 wt%) showed higher elongation ability. This different behavior was explained by SEM analysis of fracture surfaces, which showed different t.. Read More»
  DOI: 10.4172/2169-0022.1000109

  Abstract PDF