Method of manufacturing press polymer-bonded explosive using polymer emulsion and press polymer-bonded explosive manufactured using the same

Abstract

A method of manufacturing a press polymer-bonded explosive, in which a polymer emulsion is used to maximize the efficiency of a process, and a press polymer-bonded explosive manufactured using the same. The method includes a polymer-emulsion-manufacturing step of mixing a monomer of a polymer binder and an emulsifier with a process water and then adding an initiator to thus manufacture a polymer emulsion using a polymerization reaction, a slurry-manufacturing step of mixing a raw material including an explosive and an emulsion breaker with fresh process water to thus manufacture a slurry, an agglomerated-particle-forming step of adding the manufactured polymer emulsion to the manufactured slurry to thus form agglomerated particles in which a surface of the raw material is coated with the polymer binder, and an agglomerated-particle-obtaining step of collecting the agglomerated particles using filtration and drying the collected agglomerated particles.

What is claimed is: 
     
         1 . A method of manufacturing a press polymer-bonded explosive using a polymer emulsion, the method comprising:
 a polymer-emulsion-manufacturing step of mixing a monomer of a polymer binder and an emulsifier with a process water and then adding an initiator to thus manufacture a polymer emulsion using a polymerization reaction;   a slurry-manufacturing step of mixing a raw material including an explosive and an emulsion breaker with fresh process water to thus manufacture a slurry;   an agglomerated-particle-forming step of adding the manufactured polymer emulsion to the manufactured slurry to thus form agglomerated particles in which a surface of the raw material is coated with the polymer binder; and   an agglomerated-particle-obtaining step of collecting the agglomerated particles using filtration and drying the collected agglomerated particles.   
     
     
         2 . The method of  claim 1 , wherein, during the polymer-emulsion-manufacturing step, the monomer forms the polymer binder of one or more among a styrene butadiene rubber (SBR), neoprene, a nitrile butadiene rubber (NBR), an acrylic rubber, a fluorine-based rubber, and polyisobutylene using the polymerization reaction. 
     
     
         3 . The method of  claim 1 , wherein during the polymer-emulsion-manufacturing step, the emulsifier is one or more among sodium dodecyl sulfonate (SDS), sodium dodecyl benzene sulfonate (SDBS), sodium dioctyl sulfosuccinate, acetyl dimethyl benzyl ammonium chloride, and hexadecyl trimethyl ammonium bromide. 
     
     
         4 . The method of  claim 1 , wherein during the polymer-emulsion-manufacturing step, the emulsifier is added in an amount of 0.1 to 5 wt % based on a weight of the process water. 
     
     
         5 . The method of  claim 1 , wherein during the slurry-manufacturing step, the explosive is one or more among trimethylenetrinitroamine (RDX), tetramethylenetetranitroamine (HMX), and hexanitrohexaazaisowurtzitane (HNIW), and is dispersed in an amount of 5 to 30 wt % based on a weight of the process water. 
     
     
         6 . The method of  claim 1 , wherein during the slurry-manufacturing step, the emulsion breaker is one or more among calcium chloride (calcium dichloride), sodium chloride, potassium chloride, magnesium chloride, sodium nitrate, sodium carbonate, sodium iodide, and potassium iodide as an inorganic salt. 
     
     
         7 . The method of  claim 1 , wherein during the slurry-manufacturing step, the raw material further includes one or more metals among aluminum, magnesium, and boron. 
     
     
         8 . The method of  claim 1 , further comprising:
 after the agglomerated-particle-forming step,   a process-water-exchanging step of collecting the agglomerated particles using filtration and adding again the collected agglomerated particles to a new process water; and   a plasticizer addition step of adding a plasticizer, thus agglomerating the agglomerated particles and the plasticizer.   
     
     
         9 . The method of  claim 8 , wherein the plasticizer is one or more among dioctyl adipate (DOA), dioctyl sebacate, dioctyl phthalate (DOP), and isododecyl pelargonate (IDP). 
     
     
         10 . A press polymer-bonded explosive comprising:
 50 to 98 wt % of an explosive;   0 to 40 wt % of a metal;   0.5 to 5 wt % of a polymer binder; and   0 to 10 wt % of a plasticizer.   
     
     
         11 . The press polymer-bonded explosive of  claim 10 , wherein the explosive is one or more among trimethylenetrinitroamine (RDX), tetramethylenetetranitroamine (HMX), and hexanitrohexaazaisowurtzitane (HNIW). 
     
     
         12 . The press polymer-bonded explosive of  claim 10 , wherein the metal is one or more among aluminum, magnesium, and boron. 
     
     
         13 . The press polymer-bonded explosive of  claim 10 , wherein the polymer binder is one or more among a styrene butadiene rubber (SBR), neoprene, a nitrile butadiene rubber (NBR), an acrylic rubber, a fluorine-based rubber, and polyisobutylene. 
     
     
         14 . The press polymer-bonded explosive of  claim 10 , wherein the plasticizer is one or more among dioctyl adipate (DOA), dioctyl sebacate, dioctyl phthalate (DOP), and isododecyl pelargonate (IDP).