Thermal, electrical and mechanical properties of graphene/nano-alumina/epoxy composites

Incorporation of Al2O3, GO, and Al2O3@GO nanoparticles into water-borne epoxy coatings: abrasion and corrosion resistance

“…The vacancies and defects in the structure of GO were reduced after surface modification with KH550, and these vacancies and defects were caused by the reduction of oxygen functional groups. 24 The intensity ratio of 2D-band and D-band is used to predict the number of GO layer. If the intensity ratio of 2D-band and D-band is high, the number of GO layer is few.…”

“…The hybrid ratio of GO and Al 2 O 3 is also an important key factor, because the settling of Al 2 O 3 nanoparticles on the graphene surface not only inhibited the electron transfer but also eliminated the agglomerations of graphene. 24 The future work of this study is to find the optimal ratio between GO and Al 2 O 3 to achieve the maximum possibility of synergy effect.…”

“…The hybrid ratio of GO and Al 2 O 3 is also an important key factor, because the settling of Al 2 O 3 nanoparticles on the graphene surface not only inhibited the electron transfer but also eliminated the agglomerations of graphene. 24 The future work of this study is to nd the optimal ratio between GO and Al 2 O 3 to achieve the maximum possibility of synergy effect. In this study, the GO content might be high, resulting in the agglomeration of GO nanosheets in the epoxy, indicating that the effect of mechanical stirring for the dispersion of GO nanosheets was not good.…”

“…At the same time, nano-Al 2 O 3 particles can weaken the van der Waals force of GO nanosheets and improve the dispersibility of GO nanosheets in epoxy resin 23 . Osman et al 24 found that the settling of nano-Al 2 O 3 particles on the graphene surface not only inhibited the electron transfer but also eliminated the agglomerations of graphene. However, the excess addition of nanoparticles in epoxy resin also influenced the dispersibility.…”

Effects of nano reinforcing/matrix interaction on chemical, thermal and mechanical properties of epoxy nanocomposites

“…They found that the addition of nanoparticles increased the thermal conductivity by 23.4%, the tensile strength by 22.56%, and the storage modulus by 4.6% compared to the pristine epoxy. 24 Zhao and Li investigated the mechanical properties of epoxy nanocomposites to which Al 2 O 3 was added at different weight ratios (1.5%, 3.0, 5.0, and 10.0% wt). In experimental studies, the highest values in tensile strength and Young's modulus were obtained from nanocomposites with 10.0% Al 2 O 3 addition, with an increase of 2.9% and 15.4%, respectively, compared to pure epoxy.…”