An R&D Exploratory Investigation of Resin Binders for the Combustible Cartridge Case for the 155mm Self Propelled (SP) Howitzer (XM198/M109A1) Ammunition.
Abstract
A propelling charge being designed for the 155mm howitzer will use a combustible cartridge case having a chemical composition similar to that of the 152mm case now being produced by a pulp molding process. The 155mm propellant charge features, however, significant differences in terms of chemical composition, propellant weight and service conditions. This necessitates the upgrading of the 152mm case composition as regards physical strength properties, chemical resistance including nitroglycerin migration, etc., with emphasis on the resin binder. Exploratory experimental investigations were carried out to evaluate different binder resins to optimize the 155mm combustible case composition using preferred binder resins. Based on physical strength measurements two binder resins namely, National Starch & Chemical Resin 78-3730 and Dow Latex 241 (both supplied in latex form) were selected to produce optimized 155mm case compositions and samples of said compositions forwarded to ARRADCOM for further evaluation. The favored case compositions utilize a partially cross-linked binder composition which employs Cymel 300 and ammonium chloride cross-linkng additives.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA122089
Entities
People
- Mujahid Iqbal
- Walter Brenner
Organizations
- New York University