Investigation of the effects of nanoparticle reinforcement on the mechanical properties of woven composites

Abstract

Nanoparticles are used in many areas related to composite materials. Recently, the importance of nanoparticle‐reinforced materials in advanced technology has been gradually increasing. In this study, epoxy reinforced with various nanoparticles, and neat epoxy were used to produce woven composites. The fatigue behaviors of woven composites reinforced with various nanoparticles under tension‐compression fatigue loads were investigated. The tensile and fatigue strengths of woven composites enhanced with nanoparticles were compared with woven composites without nanoparticles. Tensile tests showed that the woven composites reinforced with nanoparticles were damaged at high loads. Fatigue tests revealed that the woven composites reinforced with nanoparticles exhibited high cycle numbers. Adding 0.5%, 1%, and %3 nano‐CuO to epoxy increased the cycle numbers of the woven composites by 25%, 67%, and 75% respectively at 60% load level. The failure mechanisms of woven type composite materials were investigated by scanning electron microscopy (SEM). Fiber fractures and delamination damages of samples were observed.

In situ emulsion polymerization of poly (vinyl acetate) and asparagus racemosus biopolymer composites for flexible energy storage applications

“…More specifically, the strong intermolecular interaction of PVAc polar segments with bio‐filler polar segments resulted in increased mechanical strength. [ 31,32 ] As seen in the table, a decrease in tensile value is noticed at higher loading, which is attributed to the formation of agglomerated bio‐fillers in the polymer, as validated by SEM. In addition to this, the volume and permeability of the composites rise at higher loading, resulting in the filling of flaws during in‐situ polymerization and a corresponding reduction in the mechanical properties of the composites.…”

Effect of adding Indiana red matta rice husk Si3N4 bioceramic on mechanical, wear, flammability and tensile creep behavior of corn husk fiber polyester composite

“…Huntsman India Ltd supplies a polyester resin developed using maleic anhydride with a molecular weight of 4000 g/ mol, a viscosity of 6000cps, and a density of 1.13 g/cm 3 . Same company supplied MEKP (Methyl-Ethyl-Ketone-Peroxide), which has a molar mass of 210.1 g/mol and a density of 0.95 g/cm 3 . Metro Composites, Chennai, India, supplied corn husk fiber with a length of 70 mm, diameter of 230 μm and a density of 1.1 g/cm 3 .…”

“…Considerations about sustainability and the environment have prompted efforts to investigate biobased composite materials for a number of end-use domains of application and as a distinct alternative to synthesized material reinforced composite. 3 Biocomposite materials, on the other hand, are not without drawbacks, including poor moisture resistance (hydrophilicity), low thermal stability, flammability, poor machining, and very anisotropic properties. 4 There has been numerous research on long-term reliability, resiliency, serviceability, features, and sustainability manufacture (by the adoption of a circular economy in biocomposites).…”

“…Although these advantages, their hydrophilic properties make them incompatible with the matrix. Considerations about sustainability and the environment have prompted efforts to investigate bio‐based composite materials for a number of end‐use domains of application and as a distinct alternative to synthesized material reinforced composite 3 . Biocomposite materials, on the other hand, are not without drawbacks, including poor moisture resistance (hydrophilicity), low thermal stability, flammability, poor machining, and very anisotropic properties 4 .…”