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http://dx.doi.org/10.5762/KAIS.2018.19.5.557

Study on the Improving Thermal and Mechanical Properties of Eco-friendly Materials used for Training Ammunition  

Kim, Myung-Hyun (Defense Agency for Technology and Quality)
Shon, Byoung-Chul (Defense Agency for Technology and Quality)
Lee, Young-Tae (Defense Agency for Technology and Quality)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.5, 2018 , pp. 557-562 More about this Journal
Abstract
Unlike live ammunition which has killing power due to the use of high explosives, training ammunition has only the limited explosive effect needed for training purposes, so the risk of accidents is lowered. Because training ammunition is used in large quantities during military drills, the problem of environmental pollution occurs. As most of the waste is left out in the training field, using bio-degradable polymers such as Polylactic Acid (PLA) can provide a solution to these environmental issues. However, bio-degradable polymers such as PLA usually have poor thermal and mechanical properties compared with other general purpose polymers, so they need to be improved before they can be used for military purposes. In this study, Talc is added to the PLA used for the parts of Training Grenades to improve some of their properties and the changes of their thermal and mechanical properties were verified. In the case of the 1 wt.% ~ 5 wt.% PLA/Talc blends, the thermal properties were improved in proportion to the content of Talc, but the best mechanical properties were observed for the 1 wt.% and 3 wt.% PLA/Talc blends.
Keywords
Training Ammunition; PLA; Talc; Thermal Property; Mechanical Property;
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