Studies on Sensitivity of Nitrate Ester Plasticized Hydroxyl Terminated Prepolymer Based Energetic Solid Rocket Propellants

• Autorzy: Bhowmik D. , Sadavarte V. S. , Charbhe V. D. , Pande S. M.

Identyfikatory

DOI

10.22211/cejem/68904

• Języki publikacji: EN

Abstrakty

EN

The sensitivities of energetic materials as well as advanced energetic solid propellants are invariably associated with the nature of the stimuli that are responsible for the initiation of their decomposition. Hence it is important to study the chemical processes involved with these decompositions. While assessing the potential application of new propellant formulations containing energetic materials, it is important to assess their sensitivity to the hazards involved during their handling, transport, storage and use. This paper reports the results of impact, friction, heat, spark and shock sensitivities of advanced high energy solid rocket propellant formulations based on nitrate ester plasticized, hydroxyl terminated prepolymer (SPB-255) as an energetic binder loaded with solid ingredients like ammonium perchlorate (AP), aluminium (Al) and cyclotetramethylenetetranitramine (HMX). The results of the small card gap test showed that they are more sensitive than a composite modified double base (CMDB) propellant, which in turn is more sensitive than double base (DB) as well as composite propellants. Deflagration to detonation transition (DDT) tests carried out for the advanced energetic propellant did not show any detonation phenomena. Trinitrotoluene (TNT) equivalence and super large scale gap (SLSG) tests have been carried out for the determination of hazard classification of the energetic solid rocket propellant. The requirements to achieve both higher performance in terms of improved energy (i.e., specific impulse, Isp) and reduced sensitivity for the same propellant composition are contradictory; one should be sacrificed for the other, within manageable limits.

Słowa kluczowe

EN

sensitivity; impact; friction; card gap test; DDT test; SLSG test

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2017
• Tom: Vol. 14, no. 3
• Strony: 605--620
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Bhowmik D.

• High Energy Materials Research Laboratory, Sutarwadi, Pune 411021, India

autor

Sadavarte V. S.

• High Energy Materials Research Laboratory, Sutarwadi, Pune 411021, India

autor

Charbhe V. D.

• High Energy Materials Research Laboratory, Sutarwadi, Pune 411021, India

autor

Pande S. M.

• High Energy Materials Research Laboratory, Sutarwadi, Pune 411021, India

Bibliografia

• [1] Energetic Materials. (Fair, H. D.; Walkers, R. F., Eds.) Vol. I and II, Plenum Press, New York 1977; ISBN 10: 030637076X (Vol. I) & ISBN 10: 0306370778 (Vol. II).
• [2] Fickett, W.; Davis, W. C. Detonations. University of California Press, Berkeley 1979; ISBN 0-486-41456-6.
• [3] Iyer, S.; Slagg, N. Energetic Materials. Advanced Materials 1990, 2(4): 174-179; DOI: 10.1002/adma.19900020404.
• [4] Davenas, A. Solid Rocket Propulsion Technology. Pergamon Press, Oxford 1993; ISBN 0-08-040999-7.
• [5] Bhowmik, D.; Sadavarte, V. S.; Pande, S. M.; Saraswat, B. S. An Energetic Binder for the Formulation of Advanced Solid Rocket Propellants. Cent. Eur. J. Energ. Mater. 2015, 12(1): 145-158.
• [6] Pande, S. M. Advanced Propellants Based on Energetic Binders for Case Bonded Applications. Ph. D. Thesis, University of Pune, Pune, India 2009.
• [7] Development of Impact Sensitivity Tests at Explosives Research Laboratory, Bruceton, Pennsylvania during the Years 1941-1945. (Mallory, D. H., Ed.) NOVORD Report No. 4236, 1956.
• [8] Julius-Peters, K. G. Production Programme of ‘Julius-Peters’ Company for the Members of MBB Course. Berlin 1981.
• [9] Pisacane, F. J. 1,2,4-Butanetriol: Analysis and Synthesis. Tech. Report No. 82-380, Naval Surface Weapon Center, Maryland, US 1982.
• [10] Anderson, W. H. Role of the Friction Coefficient in the Frictional Heating Ignition of Explosives. Propellants Explos. Pyrotech. 1981, 6: 17-23.
• [11] Price, D.; Jaffe, I. Large Scale Gap Test: Interpretation of Results for Propellants. ARS J. 1961, 31:595-599.
• [12] Zhang, T.; Bai, Y. L.; Wang, S. Y.; Liu, P. D. Damage of a High-energy Solid Propellant and its Deflagration-to-Detonation Transition. Propellants Explos. Pyrotech. 2003, 28(1): 37-42.
• [13] Zhang, T. H.; Wang, S. Y.; Liu, P. D. Safety Assessment Studies of a Damaged High-Energy Solid Propellant. J. Energ. Mater. 2002, 20(2): 175-189.
• [14] Graham, K. J.; Cahill, P. J. Super Large-Scale Gap Tests on Energetic Formulations. Aerojet, 7499 Pine Stake Road, Culpeper, VA 22701-8963, NDIA IM/EM Meeting – Bristol, England 2006.
• [15] Pratt, T. H. Comparative Tests of Propellants by Peak Side-on Overpressure and Side-on Impulse(u). Tech. Report S-148, Rohm and Haas Co., Redstone Research Lab., Huntsville, Alabama 35807, 1967.