Accession Number : AD0376083

Title :   SOLID PROPELLANT EXPLORATORY EVALUATION.

Descriptive Note : Semiannual rept. no. 3, 1 Jul-30 Dec 65,

Corporate Author : AIR FORCE ROCKET PROPULSION LAB EDWARDS AFB CALIF

Personal Author(s) : Villaescusa,F. Warren ; Vint,James E. ; Nicks,Paul H.

Report Date : JUN 1966

Pagination or Media Count : 32

Abstract : Composite propellants with high solids loadings were made to gain an in-house capability in processing highly viscous composite propellants. Viscosities as high as 70 kilopoise were encountered with solids loadings at 86%. Batch sizes varied from 15 grams to 4 pounds. Burn rate, propellant density, and Shore A hardness were determined for the formulations processed. Thermal stability determinations were made on three samples of LMH-1 produced during attempts to prepare a more stable material. The best sample underwent 1% decomposition in 660 hours at 60 C. Double-base propellant samples were formulated. The most stable sample yielded the most stable propellant even though the propellant density upon curing was the worst of the three propellant samples. No improvements in friction sensitivity were observed when samples of INFO-635 were washed from Feon 11 or 113, which is in direct contrast to the improvement in impact sensitivity noted by this laboratory. A solid material (probably Compound 535) has been isolated, and samples of this material have been subjected to impact and friction tests. Differential thermal analysis of a variety of samples of INFO-635 indicated that some ultrasensitive ingredients may have been removed from INFO-635 by the Freon treatments. (Author)

Descriptors :   (*COMPOSITE PROPELLANTS, SOLID ROCKET PROPELLANT BINDERS), CHEMICAL ANALYSIS, VISCOSITY, BURNING RATE, DENSITY, FRICTION, HARDNESS, STABILITY (U) BUTADIENES, ISOCYANATE PLASTICS, HYDROCARBONS, POLYESTER PLASTICS, CHROMATOGRAPHIC ANALYSIS, FLUOROHYDROCARBONS, FLUORINE COMPOUNDS, GUANIDINES, PERCHLORATES

Subject Categories : Solid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE