Nitroglycerine (NG) Migration to Various Unsaturated Polyesters and Chloropolyesters Used for Inhibition of Rocket Propellants

摘要

The kinetics of NG migration has been studied for two groups of resins—Group I: PR-3,FUP-9 and EP-4 and Group II: PAP-1, CPAP-1 and CPAP-2.These unsaturated polyesters and chloropolyesters have been characterized for tensile strength (TS), %-elongation and cross-link density. Further diffusion coefficent 9D), NG migration at infinite time (M_infinity) and concentration profiles have also been determined. The data gnerated on TS, crosslink density, D, and M_infinity corroborate the fact that as the crosslink density increases, D as well as M_infinity corroborate the fact that as the crosslink density increases, D as well as M_infinity decrease.