Accession Number : AD0825258

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

Descriptive Note : Quarterly technical rept. no. 7, 14 Sep-13 Dec 67,

Corporate Author : AEROJET-GENERAL CORP SACRAMENTO CA RESEARCH AND TECHNOLOGY DEPT

Personal Author(s) : Quacchia, Rodney H. ; Di Milo, Anthony J.

Report Date : JAN 1968

Pagination or Media Count : 69

Abstract : Work was continued on the study of Telagen S prepolymers for conventional and advanced propellant systems. The factors affecting low temperature behavior of conventional systems and a replacement for CTI received most attention this quarter. Saturation of Telagen prepolymers definitely causes poor low temperature properties in binders and propellants. This was established by studies with a series of related polymers differing only in saturation. Mixtures of saturated and unsaturated prepolymers were not as good as a partially saturated prepolymer for low temperature behavior. Prepolymer molecular weight and the nature of the crosslinker had very little effect on the low temperature mechanical properties. Telagen S prepolymers have been simplified and an infrared method was used to follow the functionality of the eluted polymer. Preparative chromatography to obtain difunctional prepolymer for binder and propellant studies was developed. Aging studies were continued and aging of binders with partially saturated pre-polymers was begun. The study of advanced systems was continued by model compound and propellant investigations using HDP and HAP. Acetylazetidine and 2,5-dioxaspiro(3,3)heptane were incompatible with HAP and only the latter was compatible with HDP. However, the dioxaspiroheptane did not react with acid at 50C. It was observed that HAP and HDP very rapidly dehydrate secondary alcohols. With these materials only primary alcohols may be used. Some HAP propellants were made. (Author)

Descriptors :   (*SOLID ROCKET PROPELLANT BINDERS, HYDROCARBONS), BUTADIENES, SOLID ROCKET PROPELLANTS, COMPATIBILITY, ALCOHOLS, DEHYDRATION, ANHYDRIDES, CURING AGENTS, AGING(MATERIALS), MECHANICAL PROPERTIES, CROSSLINKING(CHEMISTRY).

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE