Obtention and Characterization of GO/Epoxy and GO-GPTMS/Epoxy Nanocompounds with Different Oxidation Degrees and Ultrasound Methods

This work reports the obtention of nanocompounds from epoxy resin (EP) with graphenes at three different oxidation degrees (GO1, GO2, and GO3), functionalized 3-glycidyloxypropyl trimethoxysilane (GPTMS), graphene concentrations (1%, 2%, 3%). The aim is to improve GO compatibility in EP obtain a nanocompound synergistic properties. Ultrasonic bath was used disperse GO, factor effective interaction between polymeric matrix. were characterized by FTIR, SEM, mechanical tension testing. FTIR analysis evidenced stretching bonds created during functionalization oxide (GO) silane (GPTMS); they are characteristic Si-O-Si Si-O-C 1000 1085 cm−1, respectively. There difference GO-GPTMS regarding formation these signals. SEM micrographs showed morphological changes when added: smooth fracture surface became rougher. During testing, Young’s modulus (2.09 GPa) GO2-GPTMS/epoxy (1% weight GO) increased 35% while their resistance traction (98.71 MPa) grew 52%; both higher than pure EP. In conclusion, variables studied (oxidation silanization) significantly affect properties studied.