3results about "Nitroparaffin explosive compositions" patented technology

This invention discloses a method for preparing a polymer-bonded explosive with synergistic enhancement of graphene and carbon nanotubes, aiming to solve the problem of poor thermal conductivity of existing PBX. By using carbon nanotubes as thermally conductive fillers and forming a multi-level structure through a water suspension method and a slurry method composite process, the prepared composite material has a high thermal conductivity.

The invention discloses a formula of a eutectic microsphere direct-writing booster explosive thread and an explosive charging method, and belongs to the technical field of explosive charging of initiating explosive devices. One purpose of the invention is to provide a formula of the eutectic microsphere direct-writing booster explosive line, namely a formula of suspension explosive ink taking 2CL-20. HMX eutectic microspheres as a main body, and a main body explosive poor solvent isopropanol is selected as a solvent system, so that the microstructure and structure of the eutectic microsphere explosive are protected, and the high energy and insensitive characteristics of the booster explosive line are kept; the mass ratio of the binder to the explosive is 1: 9, writing smoothness and forming stability are kept, meanwhile, the content of energy-containing components is increased to the maximum extent, the forming density reaches 1.62 g / cm < 2 > or above, cracks are avoided, and explosion propagation and high reliability are achieved. The second purpose of the invention is to provide the charging method of the eutectic microsphere direct-writing booster explosive thread, by optimizing an explosive ink formula and process parameters, the forming of the high-precision, high-density and high-energy insensitive booster explosive thread is realized, and the working reliability of the booster explosive thread is improved.

This invention discloses a method for preparing a high-energy aluminum-containing explosive composite of fluororubber / Al / CL-20, comprising: coating and modifying nano-Al powder with functional materials to obtain modified nano-Al powder; dissolving fluororubber in solvent A and allowing it to stand to obtain a fluororubber solution; adding hexanitrohexaazaisowulzane explosive CL-20 to the fluororubber solution, dissolving it, adding the modified nano-Al powder, and sonicating to prepare spherical liquid fluororubber / Al / CL-20, then adding deionized water and sonicating to obtain an emulsion; and extracting or freeze-drying the emulsion to obtain a solid spherical fluororubber / Al / CL-20 composite. This invention is based on the Pickering emulsion method, using modified nano-Al particles as an interface stabilizer to form a stable emulsion, resulting in a micron-sized composite containing modified nano-Al powder, fluororubber, and CL-20. This allows for close contact between CL-20 and nano-Al powder, and the high-energy composite explosive retains the unique properties of each material, combines multiple functions, and improves the performance of the composite material.