Effect of g‐C3N4 nanofiller as filler on mechanical properties of multidirectional glass fiber epoxy hybrid composites

ABSTRACT An experimental study was carried out to investigate the flexural strength of glass‐fiber‐reinforced (multidirectional woven glass fiber) epoxy hybrid composites filled with different proportions (1, 1.5, 2, 2.5, and 3%) of graphitic carbon nitride (g‐C3N4) filler. g‐C3N4 powder filled glass epoxy composites were fabricated in conventional hand lay‐up method. Results showed an increase in flexural strength of g‐C3N4 particles content by 2% and beyond which the strength decreased. With the addition of 2 wt % of g‐C3N4 in glass‐fiber‐reinforced epoxy composites, the tensile strength increased by 11% and the flexural strength increased by 13%. The eroded surface of the specimen was observed under scanning electron microscope and the results are reported. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48413.