Investigation the Effect of Clay Nanoparticles on Shear Strength of Adhesively Bonded Composites

An adhesive bonding can be ranged among technologies of materials bonding which are used in all industrial branches Adding particles to the adhesive layer in adhesively bonded joints can increase adhesive toughness and improve stress distribution in the adhesive layer. In this investigation, the influence of clay nanoparticles on the adhesion between epoxy adhesive and composite substrates was primarily investigated. Shearing characteristics of modified epoxy were studied by single lap joints. The adhesives were produced from different amounts of Nano clay particles incorporated into epoxy. Glass fiber composite plates were chosen as adherends. The results of shear tests indicated that clay nanoparticles had great influence on adhesion strength. Compared to neat epoxy, it was found that the adhesive strength is increased considerably under shear loadings.