In addition to their high availability and economical effectiveness, natural additives were aimed to have positive environmental influences; therefore, it is used as reinforcing material for most the polymeric composites. Particles from different natural plant sources were used as reinforcing fillers with different weight fractions to produce more green epoxy matrix composites.

Here, we aim to introduce a short useful review of epoxy resin reinforced by natural fillers from agricultural waste sources covering the level of appropriate particle size and fillers loads (weight fractions) and improved values of flexural and tensile properties of these composites. Reviewed results show that flexural and tensile strengths of natural fillers reinforced epoxy composites are stronger compared to unreinforced epoxy. Results of surveyed studies also indicated decreasing tensile and flexural properties related to increases in volume fraction and particle size of the filler.

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