THERMAL AND THERMO-MECHANICAL INVESTIGATIONS OF LONG TIME STOREDPROPELLANTS

摘要

Samples of single based propellant (SBP) and double based propellants (DBP) stored a long time in non-heated military store houses were investigated up to 393 K. The dependences temperature /deformation were made by the heating rate 2 ℃/min. and the values of glass transition temperature (T_g) were determined. With the Flory-Fox-Biky equation the values of T(_g(∞)) and K were calculated. After measuring the dimensions of the samples in several temperatures were calculated the coefficient of thermal expansion of the propellants. The influence of the time of storage of the propellants on their properties was determined.