Characteristics of Bulletproof Vests Made from COPEFB Fiber: Implications on Mechanical, Electrical, and Physical Resistance.

IF 3 Q3 MATERIALS SCIENCE, BIOMATERIALS
Siti Nikmatin, Irmansyah Irmansyah, Endah Kinarya Palupi, Rofiqul Umam
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Abstract

This research aims to examine the characteristics of bulletproof vests from corncob oil palm empty fruit bunch (COPEFB) biocomposite, where mechanical, electrical, and physical resistance tests have been successfully conducted. The variations in the diameter of the twisted thread used to make the basic material for bulletproof vests include 1 mm, 3 mm, 6 mm, and 10 mm, which were tested for their mechanical, electrical, and physical properties. To identify which biocomposite is good at damping bullets, an impact and a firing test were carried out to determine the kinetic energy and the depth of the bullet, respectively. The results showed that the impact value improved with an increase in the diameter of the twisted yarn used. The largest and the lowest impact values were 1.157 kJ and 0.277 kJ on the epoxy sample with a twisted thread diameter of 10 mm and 1 mm, respectively. It was also discovered that the biocomposite samples made from 6 mm to 10 mm twisted threads were the best samples, impermeable to bullets. This was due to the excess natural fiber content which improved the flexibility and absorption of kinetic energy from the high rate of projectile bullets. According to the results of the firing test, some samples are translucent, while others cannot be penetrated by bullet projectiles. The projectile went inside, and the composite was damaged. All the high filler loading samples were translucent to bullets, while some of the low loading samples were translucent and impermeable to bullets. Based on these results, biocomposite samples made of 6 mm and 10 mm twisted yarn are the best samples that are impermeable to bullets.

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由COPEFB纤维制成的防弹背心的特性:对机械、电气和物理阻力的影响。
本研究旨在研究玉米芯油棕空果串(COPEFB)生物复合材料防弹背心的特性,该材料已成功进行了机械、电气和物理阻力测试。用于制作防弹背心基本材料的螺纹直径的变化包括1毫米、3毫米、6毫米和10毫米,测试了它们的机械、电气和物理性能。为了确定哪种生物复合材料对子弹的阻尼效果更好,研究人员分别进行了撞击和射击试验,以确定子弹的动能和深度。结果表明,冲击值随着捻纱直径的增大而增大。当螺纹直径为10 mm和1 mm时,对环氧树脂试样的最大和最小冲击值分别为1.157 kJ和0.277 kJ。研究还发现,由6毫米至10毫米螺纹制成的生物复合材料样品是最好的样品,不被子弹穿透。这是由于过量的天然纤维含量提高了弹丸的柔韧性和高速率的动能吸收。根据射击试验的结果,一些样品是半透明的,而另一些则不能被子弹射穿。弹丸进入了内部,复合材料被破坏了。高装填量的样品对子弹都是半透明的,而部分低装填量的样品是半透明的,对子弹不透水。结果表明,6mm和10mm捻纱制成的生物复合材料样品具有较好的防子弹性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Biomaterials
International Journal of Biomaterials MATERIALS SCIENCE, BIOMATERIALS-
CiteScore
4.30
自引率
3.20%
发文量
50
审稿时长
21 weeks
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