亚麻/聚丙烯织物的经纬密度对其增强热塑性复合材料性能的影响

以亚麻纱线作为芯纱,PP长丝作为外包纱,利用花式捻线机纺成聚丙烯纤维/亚麻包覆纱,再织成平纹机织布,最后热压成复合材料层板。板材拉伸性能测试结果表明,随着纬纱密度的增大,经向的拉伸强度和拉伸弹性模量随之减小,而纬向的随之增大;随着经纱密度的增大,经向的拉伸强度和拉伸弹性模量也随之增大,而纬向的却随之减小。

Effect of pick count of flax/PP fabric on the properties of this fabric reinforced thermo-plastic composites

The fancy twisting machine made the flax yarn and PP into a covered yarn by wrapping the flax with PP.The covered yarn was used to weave fabrics as the fabricated parts which was made into PP/flax composites by hot pressing.The tensile properties of composites were tested.The tensile properties in warp direction decreased with the increasing of weft density,while the filling-wise tenacity increased;and the tensile properties in warp direction increased with the increasing of warp density,while the filling-wise tenacity decreased.