| || Polyvinyl Acetate Resin as a Binder Effecting Mechanical and Combustion Properties of Combustible Cartridge Case Formulations
Author : Shedge, M. T.;Patel, C. H.;Tadkod, S. K.;Murthy, G. D.
Source : Defence Science Journal ; Vol:58(3) ; 2008 ; pp 390-397
Subject : 620.261 Explosives;621 Mechanical Engineering
Keywords : Combustible cartridge case;Binder;Polyvinyl acetate;Propellant case;Tank ammunition;Felting technique;Propellant formulations;PVAc resin
Abstract : Several combustible cartridge case (CCC) formulations containing nitrocellulose (NC) as an energetic ingredient with diphenylamine (DPA) as stabiliser, cellulose fiber as reinforcing material and polyvinyl acetate (PVAc) as a binder are processed to form combustible discs. A formulation containing nitrocellulose (83 parts), cellulose (17 parts) , PVAc (20 parts) and diphenylamine (1 part) by weight was observed with the improvement of mechanical properties without any adverse effect on combustion characteristics, safety parameters and compatibility with triple base multi-tubular propellant. Dynamic firing performance was also satisfactory.