اثر ‌نرم‌کننده‌های مختلف بر خواص ماده منفجره زیرآبی PBXN-111

PBXN-111 is a common plastic bonded explosive has been widely used in warhead section of several navy weapons. This charge is based on HTPB resin and prepared with cast-cure method. Isodecyl pelargonate (IDP) as plasticizer is used in PBXN-111 formulation. Considering limitations to prepare IDP, in this research the effect of replacement of dioctyl adipate (DOA) and dioctyl sebacate (DOS) instead of IDP investigated on density, tensile strength, elongation and hardness of PBXN-111. The results indicated the measured parameters for all types of samples are based on requirements specified in MIL-E-82902. It has also shown that this replacement has no perceptible effect on density and hardness of PBXs. But it caused to the tensile strength and elongation enhanced obviously and reached respectively to 100.6 psi and 21.2% in PBX sample containing DOS.