玄武岩机织增强热黏合抗穿刺鞋中底基材的力学性能

Mechanical properties of basalt plain fabric reinforced hot bonded puncture-resistant insoles composites

为提高鞋中底基材的抗穿刺性与柔韧性,降低成本,通过玄武岩基机织物增强和热压加固的工艺制备抗穿刺鞋中底基材,分析了低熔点聚酯纤维比例对鞋中底基材拉伸、顶破和静态穿刺头A、B、C性能的影响。结果表明:随着低熔点聚酯纤维(LMPET)含量的增加,抗穿刺强力先增强后逐渐减弱;当低熔点纤维含量为30%时,鞋中底基材的拉伸载荷为793.6 N(未热压)和759.9 N(热压),顶破载荷为445.5 N(未热压)和767.9 N(热压);鞋中底基材对不同形状的穿刺头的平均静态抗穿刺力分别为329.0 N(未热压)和392.4 N(热压);热黏合加固对顶破和抗穿刺性能的提升效果显著。

In order to improve puncture-resistance and flexibility and reduce costs of insoles composites, basalt plain fabric and hot bonding were adopted to reinforce the puncture resistance stability of the insole composite. The influences of the amount of low-melting-point polyester fibers properties of tensioning, bursting and static puncturing of flat-head(A), spherical-head(B), and pointed-head(C)probes were analyzed. The result shows that, with the increasing of low-melting-point polyester fibers, the puncture resistance firstly increases then decreases gradually. When the low-melting-point fiber content is 30%, the tensile strength of the insoles material is 793.6 N under non-hot pressing(NHP) and 759.9 N under hot pressing(HP), and the bursting strength is 445.5 N(NHP) and 767.9 N(HP). The average static resistance of the insoles to different shapes is 329.0 N(NHP) and 392.4 N(HP).The effect of hot bonding reinforcement on bursting and puncture resistance is significant.