| 摘要 |
PURPOSE: Provided are high strength emulsion explosives having improved explosion and impact resistance compared with conventional emulsion explosives by using plastic micro balloon(PMB) instead of glass micro balloon(GMB) as a sensitizer and sodium perchlorate(NaClO4) as an oxidizer. CONSTITUTION: The water in oil type emulsion explosives enough to explode granite comprise 80-90wt.% of oxidizing solution, 0.1-5wt.% of fuel solution, 0.1-5wt.% of emulsifier, 0.1-1.0wt.% of plastic micro balloon(PMB), and 5-15wt.% of aluminum. The PMB, having 0.04-0.1g/cc of specific gravity, 20-100micrometer of particle size and 0.2-10micrometer of thickness, contains vinyl diene chloride(VDC) including more than 50wt.% of acrylonitrile(ACN), the copolymer of methyl meta acrylate(MMA) and ACN, or the polymer of ACN. The oxidizing solution consists of water and ammonium nitrate, sodium nitrate, sodium chlorate, sodium perchlorate, monomethyl amine nitrate and hydrazine nitrate. The fuel solution is one or more of wax, mineral oil and gasoline. The aluminum is selected from the types of sphere, flake, foil and a mixture of thereof.
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