Performance Augmentation of Epoxy Adhesives with TiN Nanoparticles

Abstract

In the current study, nanoparticles (NPs) of titanium nitride (50−70 nm) in varying amounts (0−4 wt %) were uniformly suspended in an epoxy solution and then used to cast the films of nanocomposites. The same formulations were used to prepare the lap shear strength joints using stainless-steel coupons with the help of standard molds and then employing the compression molding technique. The nanocomposites films were characterized for their physical properties, thermal stability, friction performance, and scratch hardness, while the lap shear strength of joints prepared using nanocomposites as nanoadhesives was evaluated. The failed surfaces of joints were investigated using scanning electron microscopy (SEM) to understand the failure modes, that is, micro-failure mechanisms, while the cross-sectional surfaces of fractured nanocomposites were investigated using SEM to identify the distribution of NPs. The increase in the contents of NPs in the epoxy led to an almost linear increase in the selected performance properties. The highest (70%) improvement in the lap shear strength was observed with 4 wt % NPs, which was correlated with an increase in the hardness of composites.

Preparation and Properties of Epoxy Adhesives with Fast Curing at Room Temperature and Low-Temperature Resistance

“…Epoxy adhesives have excellent mechanical properties, thermal properties, , adhesive properties, − and electrical insulation properties, which have been widely used in packaging, construction, automotive, electronics, plastics, wood, and other fields. However, the slow curing rate of epoxy adhesives at room temperature and poor low-temperature resistance still limits their application in the field of electronic and electrical sealing, especially during the winter season.…”

Assimilation of Nanoparticles of SiC, ZrC, and WC with Polyaryletherketone for Performance Augmentation of Adhesives

“…Polymeric adhesives, especially nanocomposite (NC)-based adhesives, provide remedies without adversely affecting or compromising the performance properties. Most of the research papers and documents available in the literature on polymeric adhesives are focused on epoxy adhesives and composites filled with various carbonaceous nano-fillers [ 1 , 2 , 3 , 4 , 5 , 6 ]. For instance, due to the addition of 1 wt.…”

“…For instance, due to the addition of 1 wt. % single-walled carbon nanotubes (SWCNTs) in the epoxy matrix, a 30% increase in peel strength has been reported [ 5 ]. However, it was accompanied by a 10–15% reduction in lap shear strength (LSS).…”