Effect of flax sheet prepared by wet-laying technology on tensile properties of flax/polypropylene composites

This work focuses on the flax sheet which is prepared for wet-laying technique, then investigated the effect of the flax sheet preparation process on the tensile strength of the flax/polypropylene composites. Using hand-laying and hot-pressing methods to prepare composite materials. Then tested tensile strength of composites under different revolutions of fiber disintegration machine, flax content and flax length. The results shown that when the number of revolutions is 25,989 r, the flax content is 7.88 g, and the flax length is 4 mm, the highest tensile strength is 42.0376 MPa, which is 78.88 % stronger than that of pure polypropylene.