Abstract
The goal of this work was to investigate the effect of the biochar additive (2.5; 5; 10 wt.%) on the properties of carbon fiber-reinforced bio-epoxy composites. The morphology of the composites was monitored by scanning electron microscopy (SEM), and the thermomechanical properties by dynamic mechanical thermal analysis (DMTA). Additionally, mechanical properties such as impact strength, flexural strength andtensile strength, as well as the thermal stability and degradation kinetics of these composites were evaluated. It was found that the introduction of biochar into the epoxy matrix improved the mechanical and thermal properties of carbon fiber-reinforced composites.
Highlights
The increase in the consumption of raw materials obtained from non-renewable resources is affecting the growing popularity of natural-origin materials
The present paper presents the results of a study into the structure, dynamic mechanical thermal behavior, mechanical properties such as flexural strength, impact strength and tensile strength, as well as thermal stability and degradation kinetics of these composites
Biochar was successfully used as a low-cost filler in carbon fiber-reinforced epoxy composites
Summary
The increase in the consumption of raw materials obtained from non-renewable resources is affecting the growing popularity of natural-origin materials. Among the natural additives for polymers, plant, animal and mineral origin can be distinguished They may occur in the form of powder, microparticles or nanoparticles, or long and short fibers [2,3,4]. Dinesh et al [24] described the effects of wood dust, such as Rosewood and Padauk, on the properties of jute fiber/epoxy composites. The introduction of this filler has improved the mechanical and thermal properties of epoxy materials. Micro rice husk powder and rice husk ash powder have been applied to improve the flexural strength and the fatigue life of the carbon fabric/epoxy composites [28]
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