Mechanical properties of honeycomb cotton fabric reinforced polyurethane composites

To better rationally apply honeycomb type composites material,different honeycomb weave fabrics were developed with the same materials and the same density of warp and weft.Polyurethane was used as matrix in making honeycomb weave cotton fabric/polyurethane composites,and the performances such as tensile strength,peeling strength,impact strength,etc.of the composites with different honeycomb weaves were tested,and the influence of different honeycomb weaves on their mechanical properties was analyzed.The results showed that different honeycomb weaves have great influence on the mechanical properties.The breaking strength,peeling strength,and impact strength first increased and then decreased with the decrease of honeycomb size; and the breaking elongation gradually reduced.When the tissue circulation is 5 or 6,the composite material displays favorable mechanical properties.