期刊
POLYMERS
卷 14, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/polym14102065
关键词
auxetic; non-Newtonian fluids; low-velocity impact; personal protection
资金
- Compete 2020 [45211]
Low-velocity impact can cause serious damage, and the development of barriers that can absorb impact energy and protect the other side is the ideal solution. Auxetic materials and shear thickening fluids are two technologies with high energy absorption capabilities. By combining auxetic knits and shear thickening fluids, high performance in energy absorption can be achieved.
Low-velocity impact can cause serious damage to the person or structure that is hit. The development of barriers that can absorb the energy of the impact and, therefore, protect the other side of the impact is the ideal solution for the pointed situation. Auxetic materials and shear thickening fluids are two types of technologies that have great capabilities to absorb high levels of energy when an impact happens. Accordingly, within this study, the combination of auxetic knits with shear thickening fluids by the pad-dry-cure process was investigated. It was observed that, by applying knits with auxetic patterns produced with denser materials and combined with the shear thickening fluids, high performance in terms of absorbed energy from puncture impact is obtained. The increment rates obtained are higher than 100% when comparing the structures with and without shear thickening fluids.
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