Mechanical properties of nano-SiO2 reinforced 3D glass fiber/epoxy composites


Yildirim F. , Aydin M., Avci A.

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, vol.108, no.4, pp.308-321, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 108 Issue: 4
  • Publication Date: 2017
  • Doi Number: 10.3139/146.111479
  • Title of Journal : INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
  • Page Numbers: pp.308-321

Abstract

Three dimensional (3D) glass fiber epoxy composites reinforced with nano-SiO2 particles at ratios of 0.5 wt.%, 1 wt.%, 2 wt.% and 3 wt.%, were manufactured using the vacuum infusion method to improve the mechanical properties. Differential scanning calorimetry, thermo-gravimetric analysis, particle dispersion detection by color measurement, scanning electron microscopy, energy dispersive X-ray spectroscopy mapping, three point bending and tensile testing were performed to characterize the nano-particle-reinforced 3D composites. Mapping and color measurement revealed good dispersion of the nano-particles. The mechanical tests showed improvement rates of 52 % and 64 % respectively on warp and weft directions compared with the non-reinforced 3D composite. The tensile strength of the nano-SiO2 reinforced 3D woven composites also increased to 6 % and 10 % according to the warp and weft directions compared with the non-reinforced 3D composite.