Accession Number : AD0820843

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

Descriptive Note : Quarterly rept. no. 6, 14 Jun-13 Sep 67 on Phases 4 and 5,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CALIF ADVANCED PROPELLANTS DEPT

Personal Author(s) : DiMilo,Anthony J. ; Gustavson,C. ; Quacchia,Rodney H.

Report Date : OCT 1967

Pagination or Media Count : 64

Abstract : The acquisition and characterization of hydroxy terminated, Telagen S prepolymers was continued. Prepolymers of high (2500) and low (1000) molecular weights and a prepolymer of 60 percent saturation were investigated. Except for the characteristics pointed out above, these prepolymers resembled those investigated previously. Esterification rates with propionic acid indicate that the hydroxy groups of Telagen S are of the same reactivity as those of 2-octanol. The major factor influencing the low temperature behavior of saturated binders and propellants is the degree of saturation. The effect of prepolymer molecular weight was less important. Investigations included effect of pendant ethyl content, dilatometry of binders, pour points of prepolymers, gel particles in prepolymers, and differential thermal analysis. The low temperature behavior of Telagen S propellants generally confirmed the influence of saturation and of prepolymer molecular weight. A number of carboxylic anhydrides and of isocyanate reactions were investigated as possible curing systems for HAP propellants. Propellant studies indicate that a HAP propellant based on Carwinate M-125 as a curing agent may be feasible. Aging studies indicate that moisture is detrimental to the stability of Minuteman Wing VI second-stage and Telagen S propellants. The effect is more pronounced at higher temperature. (Author)

Descriptors :   (*SOLID ROCKET PROPELLANT BINDERS, *POLYMERS), MOLECULAR WEIGHT, CURING AGENTS, ISOCYANIC ACID, IMIDES, AGING(MATERIALS), HUMIDITY, SECOND-STAGE MOTORS, ESTERS, HYDROXIDES, CHEMICAL REACTIONS, BURNING RATE, ANHYDRIDES, BUTADIENES, VISCOSITY, MELTING POINT, PROPIONIC ACID, ALCOHOLS, STORAGE, STRESSES, DIFFERENTIAL THERMAL ANALYSIS, INFRARED SPECTRA, CHROMATOGRAPHIC ANALYSIS

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE