以亚麻纱线作为增强体,与聚丙烯（PP）纤维按六种质量比进行混合,制备PP长丝包覆的包覆纱,利用机织工艺织成二维机织布作为复合材料的预制铺层,采用热压法进行层合热压,制备出亚麻增强聚丙烯复合材料板材。通过对板材冲击性能的测试及分析,研究了制备工艺、纱线结构及纤维含量等因素对复合材料冲击性能的影响。结果表明,本试验中当亚麻质量分数为68%时板材的冲击性能最好;＂三明治＂铺层方法制备的板材体现出较好的冲击性能;0°/0°板材在受到冲击时比0°/90°板材吸收的冲击能更多,体现出较好的耐冲击性。
Flax fiber was used as a reinforcing material to commingle with polypropylene（PP） fiber to realize mixture at the stage of yarn,meanwhile,PP filaments were introduced to produce a core-spun yarn with flax/pp as core and PP filaments as outer sheath.Commingled yarns were woven into 2-D fabrics which were used as the prefabricated material.Composite laminates were prepared by hot press technology.Effects of manufacture technology,yarn structure and fiber weight fraction on the puncture properties of the composites were investigated through analyzing the puncture testing results.Testing results show that the puncture properties of the composite laminate with 68wt% fiber are the best;the laminate made by ＂sandwich＂ method shows better puncture properties than the one made by ＂mixing＂ method;puncture properties of 0°/0° laminates are better than that of 0°/90° laminates.
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