ВЛАСТИВОСТІ ВОДОСТІЙКОЇ ВИБУХОВОЇ РЕЧОВИНИ НА ОСНОВІ НІТРАТУ АМОНІЮ
The article presents the results of investigations of explosive characteristics of waterproof ammopor-W, which is a granulated ammonium nitrate with a coating based on colloxylin or conversion pyroxylin and ballistic gunpowder or rocket fuel. Thermodynamic calculations are presented and the composition of the explosive transformation products of ammopor-W has been determined. It is established that for zero oxygen balance coating weight should be 26-30 % and the thickness of 0,10-0,12 mm. The thermal decomposition of the explosive composition and its components has been experimentally investigated using the method of differential thermal analysis. The dependence of the film thickness distribution on the diameter of ammonium nitrate pellets has been determined. A method of reducing volume resistivity of granular explosive using surfactants, thereby eliminating accumulation of static electricity and providing safety when in use is proposed. Water resistance of ammopor-W has been investigated and physic-chemical, mechanical and explosive characteristics by which it exceeds grammonit 79/21 heat- mix have been defined.