Effect of nanoparticles on the mechanical properties of kenaf fiber-reinforced bio-based epoxy resin

Abstract

Ecological composites materials have become a topic of interest in materials science and engineering in recent years because of the growing need for environment-friendly composites that maintain properties like light weight, but gain biodegradability and renewability. Bio-composites of kenaf fiber-reinforced bio-based epoxy resin filled with different kind of nanoparticles were prepared in this work using a hybrid manufacturing process combining vacuum-assisted resin infusion and an autoclave. Nanoparticles of carbon, metal oxides and layered silicates were employed in this work to analyze their effect on the mechanical properties of bio-kenaf composites. Nanoparticles were synthesized and heat-treated according to their nature, and Fourier transform infrared spectra confirmed the presence of functional groups. Laminar structures, such as graphene or layered silicates, had more influence on the bio-kenaf composite toughness than the particle-like morphology of metal oxides. However, the nanoparticles influenced the strength because of their effective stress transfer mechanism. Despite voids of different sizes, which were detected using scanning tomography, they did not influence the mechanical properties of the bio-kenaf composites, showing that the filler effect of the nanoparticles is the dominant mechanism.

Kenaf bast nanocrystalline cellulose: Analysis of morphological, chemical, crystalline, and thermal

“…Nanocellulose products have been prepared from various biomass sources such as wheat straw, sisal, hemp, soy hulls, palm oil, pineapple, wood, and kenaf (Faria et al 2020;Franco-Urquiza and Rentería-Rodríguez 2021;Santos et al 2021;Zhang et al 2021;Pascoli et al 2022;Zhang et al 2022;Oliveira et al 2023;Perera et al 2023). Kenaf (Hibiscus cannabinus L., Malvaceae) is a common wild plant of tropical and subtropical Africa and Asia (Bourguignon et al 2017).…”

Effect of Nano-filler on the Manufacturing and Properties of Natural Fiber-based Composites: A Review

“…Mechanical, optical, electrical, magnetic, and thermal characteristics of nanomaterials are different from those of pure polymers [31]- [33]. Therefore, these particular properties can be improved by incorporating nanofillers, enabling a wider range of applications [28], [34], [35]. Numerous research is currently being conducted on different filler materials.…”

Mechanical Properties of Hybrid Carbonized Plant Fibers Reinforced Bio-Based Epoxy Laminates

“…Biolaminates are natural fiber-reinforced bio-based epoxy resins [ 1 , 2 , 3 ]. Vegetable oils obtained from soybeans and flaxseeds are suitable for producing epoxy groups with high functionality due to their relatively high iodine value and high unsaturated fatty acid content [ 4 , 5 , 6 ].…”