Mora Phattarin, Jubsilp Chanchira, Bielawski Christopher W, Rimdusit Sarawut
Research Unit in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Department of Chemical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhonnayok 26120, Thailand.
Polymers (Basel). 2021 Aug 18;13(16):2779. doi: 10.3390/polym13162779.
The aim of this research project is to analyze support panels that are based on aramid fabrics which are reinforced with polybenzoxazine/urethane (poly(BA-a/PU)) composites and contain multiwalled carbon nanotubes (MWCNTs). Through the measurement of mechanical properties and a series of ballistic-impact tests that used 7.62 × 51 mm projectiles (National Institute of Justice (NIJ), level III), the incorporated MWCNTs were found to enhance the energy-absorption () property of the composites, improve ballistic performance, and reduce damage. The perforation process and the ballistic limit () of the composite were also studied via numerical simulation, and the calculated damage patterns were correlated with the experimental results. The result indicated hard armor based on polybenzoxazine nanocomposites could completely protect the perforation of a 7.62 × 51 mm projectile at impact velocity range of 847 ± 9.1 m/s. The results revealed the potential for using the poly(BA-a/PU) nanocomposites as energy-absorption panels for hard armor.
本研究项目的目的是分析基于芳纶织物的支撑面板，这些芳纶织物用聚苯并恶嗪/聚氨酯（聚（BA-a/PU））复合材料增强，并含有多壁碳纳米管（MWCNT）。通过对力学性能的测量以及一系列使用7.62×51毫米子弹（美国国家司法研究所（NIJ），III级）的弹道冲击试验，发现掺入的MWCNT可增强复合材料的能量吸收性能，提高弹道性能，并减少损伤。还通过数值模拟研究了复合材料的穿孔过程和弹道极限，计算出的损伤模式与实验结果相关。结果表明，基于聚苯并恶嗪纳米复合材料的硬装甲在847±9.1米/秒的冲击速度范围内能够完全防止7.62×51毫米子弹的穿孔。结果揭示了使用聚（BA-a/PU）纳米复合材料作为硬装甲能量吸收面板的潜力。
Zotero 插件
