Investigation on fiber coating and treatment on mechanical properties of fiber composites

The purpose of this project is to investigate on mechanical properties of fibre coated reinforced composites. Tensile properties of the coated flax fabrics tested at different resin treatment. The tensile test is to evaluate the effect of the epoxy coating on the strength of the flax fiber and to predict the behavior of the coating how influence the mechanical properties of the composites. The results show that the epoxy-coated flax fiber considerably higher tensile properties compared with the non-coated flax fiber reinforced composite materials. The tensile strength of the reference sample, i.e., flax fiber without coating is 18.7 MPa is compared low to the value of the coated fiber value of 19.3 MPa. It is important to consider, that there is a large number of factors affecting mechanical properties of coated fiber, for curing temperature, resin combination, fiber arrangement etc. Consequently, it is not possible to compare accurately the achieved values with the literature. To the best of authors’ knowledge there is no previously published work on effect of fiber coating on flax fiber using high modulus. So, this latter assumption should be checked in a separate study.