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http://dx.doi.org/10.9766/KIMST.2019.22.4.509

The Study on the Shelf Life of the Combustible Cartridge Case by the Stabilizer(DPA, ECL) and Migration of Nitroglycerin  

Lim, Hoyoung (Directorate of Quality Management, Defense Agency for Technology and Quality)
Jang, Ilho (Directorate of Quality Management, Defense Agency for Technology and Quality)
Seo, Jihyun (Ammunition Technical Research Center, Ammunition Support Command)
Jung, Yonggeun (Ammunition Technical Research Center, Ammunition Support Command)
Jo, Minsoo (Quality Assurance 2nd Team, Hanwha Co.)
Han, Changho (Quality Assurance 2nd Team, Hanwha Co.)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.4, 2019 , pp. 509-516 More about this Journal
Abstract
It is well known that nitroglycerin(NG) may evaporate and migrate from the triple base propellant grains in storage. This physical process makes it double base environment to the CCC(combustible cartridge case) which is based on nitrocellulose(NC) without NG. Meanwhile, it is not appropriate to use diphenylamine(DPA) as a stabilizer for CCC in this double base environment because of incompatibility between DPA and NG. So we estimated the shelf life to study the effect of NG migration from propellant to CCC by following the procedures in the STANAG 4257. And we found out that CCC with ethylcentralite(ECL) has 7.5 years longer shelf life than with DPA, when NG migrates to CCC from triple base propellant grains.
Keywords
Combustible Cartridge Case; Stabilizer; Nitroglycerin;
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