Accession Number : AD0374230

Title :   THE DEVELOPMENT AND EVALUATION OF A HYDROCARBON BINDER FOR HIGH ENERGY SOLID PROPELLANTS.

Descriptive Note : Quarterly rept. no. 1, 14 Mar-13 Jun 66,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CALIF SOLID PROPELLANT OPERATIONS

Personal Author(s) : Johnson ,Duane E. ; DiMilo,Anthony J.

Report Date : JUL 1966

Pagination or Media Count : 77

Abstract : The investigation and characterization of the saturated hydrocarbon binder developed for use in solid rocket propellant was continued. The molecular weight and functionality distributions were determined for the saturated hydrocarbon prepolymer. The functionality of the prepolymer was independent of the molecular weight. Recrystallization was better than distillation for purifying the isocyanate crosslinking agent. While NH4ClO4 was compatible with the isocyanate curing agents, many plasticizers were not. Of the plasticiziers, the hydrocarbon oils were most compatible. Treatment of the plasticizers with molecular sieves or by passing through a column of silica gel improved the compatibility. The incompatibility of the curing agents and the plasticizers affected both the mechanical behavior of binders and propellants and the gel fraction of toluene swollen binders. The low temperature properties of the binders were not adequate for solid propellants useful at low temperatures although the glass transition temperatures of the binders were lower than -100 F. Carbon tetrachloride and tetrahydrofuran gave the maximum swelling ratios with the 'workhorse' binder. The compatibility of the prepolymer and model compounds with beryllium, beryllium hydride and aluminum hydride was determined.

Descriptors :   (*SOLID ROCKET PROPELLANT BINDERS, HYDROCARBONS), MOLECULAR WEIGHT, PURIFICATION, RECRYSTALLIZATION, COMPATIBILITY, GELS, SOLID ROCKET PROPELLANT PLASTICIZERS, MECHANICAL PROPERTIES, LOW TEMPERATURE (U) POLYMERS, CROSSLINKING(CHEMISTRY), BERYLLIUM, BERYLLIUM COMPOUNDS, HYDRIDES, ALUMINUM COMPOUNDS, ALUMINUM, PERCHLORATES, AMMONIUM COMPOUNDS, HYDROXIDES, THERMODYNAMICS, CYANATES

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE