超高分子质量聚乙烯平纹织物在柔性防弹服中的应用

Application of ultra-high molecular-weight polyethylene plain weave in soft body armour

为提升柔性防弹服的防弹性能,将超高分子质量聚乙烯平纹织物用于单向铺层材料中,以增强材料整体的能量吸收性能。通过穿透性弹道实验发现:由超高分子质量聚乙烯纤维制成的机织物在冲击过程中对受到的剪切作用有较好的抵御效果;单向铺层材料对于横向拉伸作用,有较好的防护作用。基于这种结论,设计了复合型防弹材料。测试结果表明,机织物放置在靠近弹丸冲击的一侧,单向铺层材料放置在远离弹丸冲击的一侧,这种结构有利于防弹复合材料性能的提升。当复合型防弹材料中机织物与单向铺层材料质量比为1∶3时,其防弹性能最好。

In order to improve the ballistic performance of soft body armour,ultra-high-molecular-weight polyethylene（ UHMWPE） plain woven fabrics were incorporated into the unidirectional（ UD） panel,aiming to increase the energy absorption of the whole panel. Through ballistic penetration shooting tests,it was found that woven structure exhibit better shear resistance and UD structures gives better tensile resistance upon ballistic impact. According to this phenomenon,hybrid ballistic panel design guidance was developed. The results showed that placing the woven fabrics close to the impact face and UD material as the rear layers led to better ballistic performance than the panel constructed in the reverse sequence. It has also been found that the optimum ratio of woven to UD materials in the hybrid ballistic panel was 1∶ 3.