Studies on Sheet Explosive Formulation Based on Octahydro-1,3,5,7-Tetranitro-1,3,5,7-Tetrazocine and Hydroxyl Terminated Polybutadiene

Suresh Kumar Jangid; Mrityunjay Kumar Singh; Vasant Jadavji Solanki; Rabindra Kumar Sinha; Krothapalli Prabhakara Subrahmania Murthy

doi:10.14429/dsj.67.10533

Suresh Kumar Jangid High Energy Materials Research Laboratory, Pune - 411 021
Mrityunjay Kumar Singh High Energy Materials Research Laboratory, Pune - 411 021
Vasant Jadavji Solanki High Energy Materials Research Laboratory, Pune - 411 021
Rabindra Kumar Sinha High Energy Materials Research Laboratory, Pune - 411 021
Krothapalli Prabhakara Subrahmania Murthy High Energy Materials Research Laboratory, Pune - 411 021

DOI: https://doi.org/10.14429/dsj.67.10533

Keywords: Sheet explosive, Explosive reactive armour, HMX, RDX, BKW code

Abstract

The effect of replacing hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) by octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) in HTPB-binder on the performance, sensitivity, thermal, and mechanical properties of the sheet explosive formulation has been studied. The maximum loading of HMX was achieved up to 78 per cent in HTPB-binder system. The velocity of detonation (VOD) of HMX-based sheet explosive was observed about 7300 m/s which is marginally higher than existing RDX-based sheet explosive formulation (RDX/HTPB-binder, 80/20). The VOD trends were verified by theoretical calculation by BKW code using FORTRAN executable program. The thermal decomposition kinetics of sheet explosive formulations was investigated by differential scanning calorimetry. The activation energy for sheet explosive formulation HMX/HTPB-binder (78/22) was calculated using Kissinger kinetic method and found to be 170.08 kJ/mol, infer that sheet explosive formulation is thermally stable.

Author Biographies

Suresh Kumar Jangid, High Energy Materials Research Laboratory, Pune - 411 021

Mr S.K. Jangid received his MSc (Chemistry) from University of Rajasthan, Jaipur. Presently, he is working as Scientist ‘D’ at HEMRL, Pune. He is actively involved in processing of polymer based explosive formulations. His area of research interest include high explosive processing, polymer based explosives, theoretical calculation and thermal study of HEMs.

In current study, he has contributed in the preparation and characterisation of sheet explosive formulations, theoretical prediction, data interpretation and preparation of the manuscript.

Mrityunjay Kumar Singh, High Energy Materials Research Laboratory, Pune - 411 021

Mr M.K. Singh received his MSc (Organic Chemistry) from Udai Pratap College Varanasi. Presently, he is working as Scientist ‘D’ at HEMRL, Pune. He is involved in processing of polymer based explosive formulations. His area of research interest includes high explosive processing.

In current study, he has contributed in preparation and characterisation of sheet explosive formulation, and collection of data.

Vasant Jadavji Solanki, High Energy Materials Research Laboratory, Pune - 411 021

Mr V.J. Solanki received his DME from Government Polytechnic Pune. Presently, he is working as Technical Officer ‘C’ at HEMRL, Pune. He is involved in processing of polymer based explosive formulations. His area of research interest includes high explosive processing.

In current study, he has contributed in preparation and characterisation of sheet explosive formulations.

Rabindra Kumar Sinha, High Energy Materials Research Laboratory, Pune - 411 021

Dr R.K. Sinha obtained his PhD (Chemistry) from Savitri Bai Phule Pune University. Presently, he is working as Associate Director at HEMRL, Pune. He has significant contributions in the field of polymer based explosives. His research interests include high explosive processing and polymer based explosives.

In current study, he has contributed in the conceiving of idea and manuscript correction.

Krothapalli Prabhakara Subrahmania Murthy, High Energy Materials Research Laboratory, Pune - 411 021

Mr K.P.S. Murthy obtained his MTech (Mechanical Engineering) with specialisation in production technology from IIT Kharagpur. He is presently working as Director, HEMRL, Pune. His research interests include : Advanced explosive warheads utilising improved explosives compositions, kill mechanisms and tunable performance for applications in missiles and aircraft bombs.

In current study, he has contributed in the conceiving of idea and implementation.