Abstract Adhesive joints of carbon fiber/epoxy laminates were studied using an epoxy resin as the adhesive. In order to enhance mechanical and electrical properties adhesives, they modified by introduction nanofibers (CNFs). Also, different surface treatments, such grit blasting, peel ply, plasma, applied laminates. The CNFs addition slows down curing reaction adhesive although final conversion is still high. contact angle nanoreinforced adhesives on treated lower than that neat resin....

The main objective of this research was to obtain an improved understanding the factors which contribute bond strength in adhesive joints carbon fiber/epoxy composites. For this, most common surface treatments for composites were applied including grit blasting, peel ply and plasma. Also, untreated adherends analysed. topography studied surfaces analysed with a profilometer through image analysis scanning electron micrographs. Besides measuring average roughness, other parameters determined...

Abstract Epoxy resins reinforced with carbon nanofibers (CNF) and nanotubes (CNT) were prepared evaluated as adhesives of fiber/epoxy laminates. Different percentages nanofiller (0.1–3 wt%) have been tested. The viscosity the non-cured nanoreinforced epoxy mixtures increased content. On other hand, thermal treatment at high temperatures amino-functionalized CNTs monomer also caused an increase their — this is likely due to chemical reaction between oxirane groups amine nanofiller. joint...

Two different contents of graphene nanoplatelets (GNPs: 0.5 and 2 wt.%) were introduced into benzoxazine resin. The main objective this work is to obtain a polymeric nanocomposite with multifunctional properties as high electrical thermal conductivity, maintaining or improving its mechanical performance. quality the dispersion, performed three-roll calender, was studied. Afterward, complete characterization nanocomposites carried out in order analyse benefits neat features such...

Epoxy nanocomposites were fabricated using two kinds of nanofiller, amino-functionalized multi-walled carbon nanotubes (CNTs) and non-treated long nanofibers (CNFs). The non-cured mixtures analysed through viscosity measurements. effect the nanoreinforcement on curing process was determined by differential scanning calorimetry. Finally, characterisation cured carried out studying their thermo-mechanical electrical behaviour. At room temperature, addition CNTs causes a increase epoxy monomer...

The introduction of graphene-related materials (GRMs) in carbon fibre-reinforced polymers (CFRP) has been proved to enhance their mechanical and electrical properties. However, methodologies produce the 3-phase (multiscale composites) at an industrial scale efficient manner are still lacking. In this paper, multiscale CFRP composites containing different GRMs have manufactured following standard procedures currently used aerospace industry with aim evaluate its potential application....

Piezoceramic transducers (PCTs) bonded to carbon fiber-reinforced plastic (CFRP) composite structures must be durable as well remain properly the structure in order provide reliable data for accurate guided-wave-based structural health monitoring (SHM) of aeronautical components. The current method bonding through epoxy adhesives faces some shortcomings, such difficult reparability, lack weldability, longer curing cycles, and shorter shelf life. To overcome these a new efficient procedure...

Curing kinetic of an epoxy resin reinforced with amino-functionalized MWCNTs has been studied by DSC and the obtained results were explained through morphological studies carried out SEM, TEM, FEG-SEM, molecular simulation tools. The presence in curing reaction induces a retardation effect decrease heat. Both are associated adsorption agent molecules inside carbon nanotubes, which was proved application electron microscopic techniques It also demonstrated that there is chemical between amine...