Abstract:

According to the structural features of co-woven-knitted fabric (CWK), high tenacity and high modulus basalt fiber filaments with different linear density were used as warp, weft and stitch yarn to produce the CWK fabric, which was used as reinforcement in making basalt filament/ethylene composite by VARTM process. For exploring the application fields of the CWK reinforced composites, the tensile of cross, longitudinal, and diagonal direction were tested. The mechanical properties of the composites were investigated by analyzing the stress-strain curves and breaking elongation. The strength comparison was made between the warp and weft of the composites. The results revealed that the tensile strength in the axial direction was relatively higher, and the tensile strength in weft and warp directions was better than that in diagonal direction. Brittle elongation breaking was observed, and the strength of the weft yarn is higher than that of warp yarn.