Polyvinyl Acetate Resin as a Binder Effecting Mechanical and CombustionProperties of Combustible Cartridge Case Formulations

Abstract

Several combustible cartridge case (CCC) formulations containing nitrocellulose (NC) as anenergetic ingredient with diphenylamine (DPA) as stabiliser, cellulose fiber as reinforcing materialand polyvinyl acetate (PVAc) as a binder are processed to form combustible discs. A formulationcontaining  nitrocellulose (83 parts), cellulose (17 parts) , PVAc (20 parts) and  diphenylamine(1 part) by weight was observed with the improvement of  mechanical properties without anyadverse effect on combustion characteristics, safety parameters and compatibility with triplebase multi-tubular propellant. Dynamic firing performance was also satisfactory.