Agency for Defense Development

Hyoun Soo Kim

Jin Seuk Kim

Seung Hee Kim

Hyung Sop Kim

According to the present invention, unstable hydrogen of 4,4',5,5&#x2032;-tetranitro-2,2&#x2032;-biimidazole, which is a promising material for insensitive high-performance molecular explosives, may be stabilized by aminoguanidium to provide di(aminoguanidium) 4,4&#x2032;,5,5&#x2032;-tetranitro-2,2&#x2032;-biimidazole, thereby solving the hygroscopicity of 4,4&#x2032;,5,5&#x2032;-tetranitro-2,2&#x2032;-biimidazole, and enhancing performance and insensitivity thereof.

Di(aminoguanidium) 4,4',5,5&#x2032;-tetranitro-2,2&#x2032;-biimidazole, and preparation method thereof

A compactable composite explosive consisting of 90 weight % to 95 weight % of a raw explosive material being RDX, 5 weight % to 10 weight % of ethylene vinyl acetate copolymer resin containing vinyl acetate in a content of 10 % to 20 % and 0 weight % to 0.5 weight % of dioctyl adipate (D.O.A.) or graphite. This composite explosive is usable as a main charge or a booster of a highly precise arms system. The invention also provides a method for producing a compactable composite explosive, which comprises the steps of dissolving a binder of ethylene vinyl acetate copolymer resin in a solvent of toluene to prepare a solution, injecting the solution into RDX dispersed in a water, forming a granular product from the obtained mixture, distilling primarily the product, *adding toluene into the product, and distilling secondarily the product. The amount of added toluene is 1.0 time to 3.0 times the amount of the binder measured after the primary distillation. The grain size of a final product can be freely controlled according to the amount of added toluene.

Growing community of inventors

Daejeon-si, South Korea

Hyoun Soo Kim