Evaluation of GIM as a Greener Insensitive Melt-Cast Explosive


  1. Ampleman, G.
  2. Brousseau, P.
  3. Thiboutot, S.
  4. Rocheleau, S.
  5. Monteil-Rivera, F.
  6. Radovic-Hrapovic, Z.
  7. Hawari, J.
  8. Sunahara, G.
  9. Martel, R.
  10. Coté, S.
  11. Brochu, S.
  12. Trudel, S.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
For years, DRDC Valcartier has invested efforts at developing energetic thermoplastic elastomers (ETPEs) based on linear glycidyl azide polymers (GAPs) to serve as energetic binders, and replace thermoset matrix in insensitive explosives. It was first observed that introducing ETPEs in their melted form was not an easy task because high and non-practical viscosities were encountered in the process. It was discovered that TNT could be used in its melted form as an organic solvent to dissolve the ETPE and allow its incorporation into the insensitive formulations. Using these ETPEs led to the development of a greener insensitive melt-cast explosive named GIM. This new explosive was intensely studied. The mechanical properties and proportions of ETPE in the formulations were optimized to obtain a melt-cast with low viscosity while leading to an insensitive explosive formulation. Work was conducted on GIM explosive to test its performance and sensitivity, its fate and behaviour into the environment, its recycling capability, and its toxicity. This paper describes the results of all experiments conducted so far to test these aspects of the GIM explosive. The preparation of the ETPEs and the GIM explosives will also be briefly described.
Report Number
DRDC-VALCARTIER-SL-2012-402 — Scientific Literature
Date of publication
01 Dec 2012
Number of Pages
Electronic Document(PDF)

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