Incorporation of silicon dioxide nanoparticles at the carbon fiber‐epoxy matrix interphase and its effect on composite mechanical properties

Abstract

Functionalized silicon dioxide nanoparticles (nano-fSiO 2 ) were uniformly deposited on the surface of carbon fibers (CFs) using a coating process which consisted of immersing the fibers directly in a suspension of nano-fSiO 2 particles and epoxy monomers in 1-methyl-2-pyrrolidinone (NMP). The 08 flexural properties, 908 flexural properties, and Interlaminar shear strength (ILSS) mechanical properties of unidirectional epoxy composites made with nano-fSiO 2 1epoxy sized carbon fibers, with control fibers, and with epoxy-only sized fibers were measured and compared. An obvious increase of the fiber/matrix adherence strength was obtained with the nano-fSiO 2 1epoxy coating. The nano-fSiO 2 1epoxy sized CF/epoxy composites showed a relative increase of 15%, 50%, and 22% in comparison to control fibers, for the Interlaminar shear strength, the 90 8 flexural strength and the 908 flexural modulus, respectively, but little e difference was measured between the different systems for the 08 flexural properties. The observation of the fracture surfaces by scanning electron microscopy of composite fracture confirmed the improvement of the interfacially dependent mechanical properties.

A Thermoplastic Multilayered Carbon-Fabric/Polycarbonate Laminate Prepared by a Two-Step Hot-Press Technique

“…Therefore, a set of different multi-CFPLs were prepared and studied to test the flexural, tensile and impact properties. Limited by experimental amounts, the layer numbers of laminates were no more than 10, with an appropriate thickness interval (≤2.3 mm thick) in most studies [27,28,29].…”

High Performance Hybrid Graphene Nano Filters as a Total dissolved solid remover

“…methylene blue and methyl orange further multiple spectrum light adsorption capabilities were also improved the fabricated Graphene silicon dioxide was also compared to reduced graphene oxide and silicon dioxide which suggested transference rates of electron through binary heterojunction were enhanced and the hybrids of graphene silicon dioxide have considerably more surface area then pure form therefore reducing corrosion rates of hybrid nanoparticles [36]. Flexural strength considerably improved when [37] incorporated silicon dioxide nanoparticles graphene matrix interphase and checked its further relevant effects and applications as TDS remover.…”

Improved properties of corn fiber-reinforced polylactide composites by incorporating silica nanoparticles at interfaces

“…2 After surface treatment, a polymer coating (typically epoxy), referred to as a “sizing,” is applied to protect the carbon and glass fibers during handling and improve the processability of fiber yarns. 5,6…”

“…21 –23 Interestingly, it has been shown by recent studies that the addition of nanofillers into sizing formulations improves interfacial bonding and is thus gaining more and more attention. 2,6…”

“…The reported nanofillers in sizing formulations include halloysite nanotubes, 24 carbon nanotube (CNT), 25 –27 graphene, 28 graphene oxide (GO), 29 –31 and silica (SiO 2 ) nanoparticles, 6,32 –35 For example, GO sheets were used to improve the carbon fiber/epoxy bonding. Zhang et al 29 dispersed the GO sheets in the fiber sizing and then coated them onto the surface of carbon fibers.…”