REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

the possibility of increasing the inhibitor/propellant BOND STRENGTH usING different primers

MIRKO GOJIĆ

Military Technical Institute, Belgrade

VESNA RODIĆ

Military Technical Institute, Belgrade, vesna_rodic@vektor.net

DANILO SERDAREVIĆ

Military Technical Institute, Belgrade

Abstract: After the plan conducted experiment firing cannon projectiles performed on the different temperatures: -30^oC, 25^oC and 50^oC, it was found deviations from the target only at a temperature of 50^oC. After a detailed analysis of potential causes that have led to increased scattering from the target hits at 50^oC as the most likely decrease the bond strength (adhesion) inhibitor/solid propellant, because the bond strength decreases with increasing temperature. In order to achieve higher bond strength values were performed numerous experiments in order to increase the surface energy of inhibitors using different methods of preparation of its surface and the choice of primers of different chemical structures.

Key words: inhibitor, primer, gas generator, composite rocket propellant.