66 results about "Hexanitrohexaazaisowurtzitane" patented technology

The invention relates to a method for preparing high-quality energetic crystal material fine particles. Various high-quality energetic crystal material fine particle products, such as pentaerythritol tetranitrate (PETN), cyclotrimethylene trinitramine (RDX), cyclotetramethylenetetranitramine (HMX), hexanitrohexaazaisowurtzitane (CL-20), DADNE (FOX-7), ammonium perchlorate (AP), and the like can be prepared by adopting an ultrasound solvating-out crystallization method in the traditional solvating-out crystallization process. The high-quality energetic crystal material fine particle product prepared by the preparation method disclosed by the invention has subglobular particle form, narrow granularity distribution, average particle diameter of 5-50 microns or so, transparent crystals, high particle density, crystal theoretical density of more than 99.9 percent and obviously reduced shock wave sensitivity and is used for pouring or pressing PBX (Plastic-bonded explosives). The method for preparing the high-quality energetic crystal material fine particles has the advantages of simple process flow and mild reaction conditions and is suitable for mass industrialized production.

The invention provides a sphericized epsilon type hexanitrohexaazaisowurtzitane (HNIW) crystal and a preparation method thereof. The preparation method of the sphericized epsilon type hexanitrohexaazaisowurtzitane (HNIW) crystal comprises the following steps: a) dissolving alpha-HNIW, beta-HNIW and gamma-HNIW or mixture of the alpha-HNIW, the beta-HNIW and the gamma-HNIW into a solvent to form a saturated solution of the alpha-HNIW, the beta-HNIW and the gamma-HNIW or the mixture of the alpha-HNIW, the beta-HNIW and the gamma-HNIW; b) adding a crystal growth control agent to the saturated solution and adding an anti-solvent to form a supersaturated solution; and c) adding epsilon-HNIW seed crystals to the supersaturated solution and continuously adding the anti-solvent until all HNIW in the supersaturated solution is released to grow a sphericized epsilon-HNIW crystal. The sphericized epsilon-HNIW crystal does not have sharp edges and corners but has a multi-faceted spherical shape, particle size of 20 to 500 um, chemical purity of 98 to 99.9 percent determined by high performance liquid chromatography, porosity of 0.01 percent to 0.40 percent and 5kg drop hammer impact sensitivity H50 of 26 to 52 centimeters.

The invention discloses a preparation method of a large-particle hexanitrohexaazaisowurtzitane explosive, and the preparation method comprises the following steps: adding enough hexanitrohexaazaisowurtzitane into a recrystallization solvent at 25-50 DEG C, dissolving and filtering to obtain a hexanitrohexaazaisowurtzitane saturated solution; putting the hexanitrohexaazaisowurtzitane saturated solution into a three-necked flask, wherein the temperature is 25-50 DEG C, and the stirring speed is 200-500 rpm (revolutions per minute); adding a non-solvent for the first time so that the solvent is at a supersaturation concentration and no crystal is precipitated; adding a hexanitrohexaazaisowurtzitane seed crystal, and stirring; dropwise adding the non-solvent for the second time by use of a peristaltic pump, wherein the dropwise adding time is 1-3 hours; after the dropwise adding, stirring, filtering, washing and drying to obtain large-particle hexanitrohexaazaisowurtzitane explosive. By adopting the preparation method disclosed by the invention, the hexanitrohexaazaisowurtzitane explosive with average particle size over 350 microns can be prepared; the preparation method is simple in process and convenient to operate.

The invention discloses a reparation method of a hexanitrohexaazaisowurtzitane (CL-20) and 2,5-dinitrotoluene (DNT) eutectic explosive and belongs to the field of energetic materials. Based on the mechanism of eutectic formation, a novel high-energy and low-sensitivity eutectic explosive is formed by high-energy and high-sensitivity CL-20 and low-sensitivity DNT through intermolecular hydrogen bonds. The preparation method is of significance on search of the energetic materials and is an effective modification means for a high-energy explosive. The preparation method specifically comprises the following steps: adding the CL-20 and DNT in a molar ratio of 1: 2 at normal temperature into a proper amount of a crystallizing agent; carrying out ultrasonic oscillation and uniformly mixing to obtain a saturated crystallizing solution; and slowly evaporating a solvent at room temperature; and washing and drying to obtain the light yellow CL-20 and DNT eutectic explosive. According to the CL-20 / 2,5-DNT eutectic explosive prepared by the preparation method, the density and smelting point are remarkably improved compared with those of DNT. The eutectic explosive as a novel insensitive explosive has a relatively broad application prospect and is simple in process flow and mild in experimental condition. The product is good in safety and relatively high in quality.

According to the invention, metal hydride and an oxidizing agent are mixed, and under the action of an adhesive, the mixture is granulated to prepare a high-heat mixed explosive. The explosive contains the following components, by mass, 50-80% of cyclonite (RDX) and octogen (HMX) or hexanitrohexaazaisowurtzitane (CL-20), 10-25% of an oxidizing agent, 10-25% of metal hydride and 1.0-5% of a binder. According to the invention, metal hydride is added into the explosive for the first time so as to obtain the high-heat high-power explosive with the value of explosion heat being 14000-22000kJ / kg. The explosive has excellent sensitivity, and storage life of the explosive reaches 30 years. The explosive is suitable for charge by using press-fitting technology.

The invention relates to a method for coating a CL-20 (hexanitrohexaazaisowurtzitane) explosive with plasticized Estane5703. The method comprises the following steps: coating the surface of CL-20 with a desensitizer microcrystalline wax to prepare a CL-20 and microcrystalline wax compound, and coating the surface of the CL-20 and microcrystalline wax compound with Estane5703 to prepare a CL-20 explosive compound. The method allows a uniform and compact film to be formed on the surface of the CL-20 explosive, so the mechanical sensitivity of the CL-20 explosive is substantially reduced. The CL-20 explosive compound prepared in the invention and the coating film thereof are controlled to be in a nanometer range, account for 2-4% of the total system, and have small influences on the energy of the CL-20 explosive. The bump sensitivity of the coated CL-20 explosive is reduced to 52-72% from 100%, and the friction sensitivity of the coated CL-20 explosive is reduced to 40-80% from 100%.

The invention discloses a preparation method of a hexanitrohexaazaisowurtzitane / p-benzoquinone cocrystal explosive. Firstly a saturated solution of hexanitrohexaazaisowurtzitane and a saturated solution of p-benzoquinone are prepared using a crystallization solvent, and then the solvent is allowed to evaporate through a constant-temperature incubator, followed by crystallization to prepare a hexanitrohexaazaisowurtzitane / p-benzoquinone cocrystal explosive. The invention has the benefits as follows: the crystal density of the hexanitrohexaazaisowurtzitane / p-benzoquinone cocrystal explosive is up to 1.737 g / cm3, the melting point of the cocrystal explosive is 132 DEG C and is greatly increased by 17 DEG C as compared with relatively-pure component PBQ, and the cocrystal decomposition temperature is lower than that of both CL-20 and BQ and 207 DEG C lower than that of PBQ. Therefore, by virtue of cocrystallization, the thermal decomposition behavior of the explosive can be obviously controlled, the high efficiency and desensitivity of cocrystallization of the explosive are achieved, the safety of the explosive is improved, and the explosive has a good application prospect in high-energy low-sensitivity ammunition.

The invention discloses a boron-containing explosive and preparation method thereof. The preparation method comprises the following steps: mechanically activating aluminum powder, boron powder and polytetrafluoroethylene into high-energy composite particles by adopting a reaction inhibition ball milling process, so that the surface of the boron powder is coated with the aluminum powder and the polytetrafluoroethylene, and the diffusion distance between the boron powder and the polytetrafluoroethylene and the diffusion distance between the boron powder and the aluminum powder are reduced, the combination tightness degree of the boron powder, polytetrafluoroethylene and aluminum powder is improved, and the reaction completeness of the boron powder is improved; then mixing the high-energy composite particles with a high-energy explosive so as to improve the energy level of an explosive formula system; and finally adding an adhesive and a desensitizer, and performing kneading to form the boron-containing explosive. The boron-containing explosive disclosed by the invention comprises the following components in percentage by mass: 50%-60% of hexanitrohexaazaisowurtzitane (CL20); 15%-30%of aluminum powder; 5%-10% of boron powder; 10%-20% of polytetrafluoroethylene; and 1%-2% of a vinylidene fluoride- perfluoropropylene copolymer. The explosive is suitable for warm-pressing warhead charging and penetration warhead charging.

The present invention discloses a preparation method for a hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive, wherein a crystallization solvent is adopted to prepare a hexanitrohexaazaisowurtzitane and m-dinitrobenzene saturated solution, and a constant temperature incubator is adopted to perform solvent evaporation and crystallization to obtain the hexanitrohexaazaisowurtzitane and m-dinitrobenzene co-crystallized explosive. According to the present invention, crystal density of the hexanitrohexaazaisowurtzitane and m-dinitrobenzene (CL-20-DNB) co-crystallized explosive is significantly increased by 19.6% compared with crystal density of DNB, detonation velocity and detonation pressure of the CL-20-DNB co-crystallized explosive are respectively increased by 46.2% and 147.5% compared to detonation velocity and detonation pressure of DNB, and the CL-20-DNB co-crystallized explosive has characteristics of a good detonation performance and high safety performance, and can be used for preparing low sensitivity ammunition.

The invention discloses a preparation method of a hexanitrohexaazaisowurtzitane and 1-methyl-3, 4, 5-trinitro pyrazole eutectic explosive. The method includes the steps of: 1. preparation of a CL-20 and MTNP co-crystallization solution; 2. preparation of a CL-20 / MTNP eutectic explosive: placing the CL-20 and MTNP co-crystallization solution in a jet tank, then adjusting the jet pressure to 0.1-0.5Mpa, opening a valve, jetting the co-crystallization solution into nonsolvent water, rapidly precipitating crystals, and conducting filtering and drying so as to obtain the CL-20 / MTNP eutectic explosive. The invention also provides a CL-20 / MTNP eutectic explosive. The CL-20 / MTNP eutecticccrystal prepared by the method provided by the invention has high energy density and low sensitivity, can be used as a main component of explosive formula, and has good application prospect in insensitive ammunitions.

The invention discloses an energetic compound 1-(2,2,2-trinitroethylamino)-3,5-dinitropyrazole and a preparation method thereof. The method comprises the following steps: reacting the raw material 3,5-dinitro-1H-pyrazole with strong alkali to form 3,5-dinitro-N-ion salt, carrying out nucleophilic substitution reaction with 2,4,6-trimethylphenylsulfonyl hydroxylamine (MSH) in an organic solvent to obtain N-amino-3,5-dinitropyrazole, and carrying out Mannich reaction with trinitroethanol in a hydrosolvent to generate the target product. 1HNMR, 13CNMR and DSC-TG are adopted to characterize the structure and thermal properties of the target product. The preparation method has the advantages of mild reaction conditions and fewer reaction steps. The detonation energy of the target product is higher than that of RDX, the specific impulse is higher than that of the RDX and hexanitrohexazazisowurtzitane (CL20), the thermal decomposition peak temperature is up to 332 DEG C, and the energetic compound can be used as a heat-resistant explosive or high-energy oxidizer.

The invention discloses a preparation method of monodispersed hexanitrohexaazaisowurtzitane micron hollow spheres. The preparation method comprises the following steps of: A, weighing a certain amount of hexanitrohexaazaisowurtzitane, adding the hexanitrohexaazaisowurtzitane into an organic solvent, and heating and stirring till the hexanitrohexaazaisowurtzitane is fully dissolved; and B, sucking the solution in the step A into an injector with a flat syringe needle, fixing the injector on a micro boost pump, setting parameters, adjusting the distance from the syringe needle to a collector, adjusting voltages on the syringe needle and the collector, and keeping a Taylor cone on the syringe needle for a while to obtain the monodispersed hexanitrohexaazaisowurtzitane micron hollow spheres. The product is spherical in particle morphology and narrow in distribution of particle dimension. The microspherical particles are composed of nanoparticles and have an important application prospect in the field of primary explosives and the like. The process flow is simple, and the prepared microspherical particles do not need further post-treatment, and the preparation method is mild in experimental condition and good in safety.

The invention discloses a high-energy density explosive compound and a preparation method thereof. The preparation method comprises the following steps: mechanically activating aluminum powder, polytetrafluoroethylene and nano copper oxide into high-energy ternary composite particles through high-energy ball milling process; reducing the diffusion distance between aluminum powder, and polytetrafluoroethylene and copper oxide, shearing and mixing with a single-compound explosive to enhance the reaction activity and completeness of the explosive, nano copper oxide, aluminum powder and polytetrafluoroethylene, and finally adding an adhesive and a desensitizer for kneading to form the high-energy-density explosive compound. The explosive compound disclosed by the invention is prepared from thefollowing components by mass: 14.8 to 28.8% of hexanitrohexaazaisowurtzitane; 42%-50% of spherical aluminum powder; 18-22% of polytetrafluoroethylene; 10-12% of nano copper oxide; 1-2% of butadiene rubber; and 0.1-0.2% of graphite. The explosive compound is suitable for explosive charging of an ultrahigh-speed warhead and a penetration warhead.

The invention discloses a preparation method of submicron hexanitrohexaazaisowurtzitane in batch. The method comprises: adding a surfactant into water to prepare a surfactant solution, grading by using grinding ball mediums with different diameters, adding CL-20, the surfactant solution and the grinding ball mediums into grinding tanks, cooling, symmetrically putting the grinding tanks, fixing the grinding tanks onto a planet grinder for planet grinding, separating a grinded explosive suspension and the grinding ball mediums, performing solid-liquid separation for the explosive suspension, and drying to obtain the submicron CL-20. According to the preparation method provided by the invention, the CL-20 explosive, the surfactant solvent and the grinding ball mediums with different diameters are graded, and the planet grinder is used for repeated grinding. The prepared epsilon-CL-20 is uniform in powder particle size, smooth in particle surface, and regulatable in average particle size; during a preparation process, no organic solvent impurities are introduced, a post treatment is reduced , a total grinding time is 1-10 hours, and a grinding time is short. The method is suitable for production in batch.

The invention discloses a nano epsilon crystal form hexanitrohexaazaisowurtzitane (CL-20) explosive and a massive preparation method thereof. The preparation method is characterized by comprising the following steps: dissolving CL-20 explosive into a solvent to prepare an explosive solution; pre-cooling a non-solvent; heating the explosive solution to a certain temperature, ejecting the explosive solution into the pre-cooled non-solvent under stirring and ultrasonic waves, and finally carrying out solid-liquid separation, washing, purification, and drying to obtain the nano epsilon crystal form hexanitrohexaazaisowurtzitane (CL-20) explosive. The problem solves the problem that in a conventional solvent-non-solvent rapid crystallization method, crystal transformation of CL-20 happens easily; the epsilon crystal form hexanitrohexaazaisowurtzitane (CL-20) explosive is obtained through direct crystallization; the technical process is simple, the operation is convenient, moreover, the epsilon crystal form hexanitrohexaazaisowurtzitane (CL-20) explosive can be produced in batches, and the yield of each batch can reach 100 grams. By optimizing the technological parameters, epsilon crystal form CL-20 powder with an average particle size less than 500 nm can be obtained.

The invention relates to suspensions of hexanitrohexaazaisowurtzitane crystals in a liquid phase (whereby the liquid phase comprises at least 85 wt% of a non-solvent of hexanitrohexaazaisowurtzitane, said non-solvent consisting of at last one non-flammable hydrofluoroether, and contains between 0 and less than 15 wt% of an organic solvent of hexanitrohexaazaisowurtzitane which is more volatile than the non-sovent and selected from the group containing esters, nitriles, ketones and mixtures thereof). The invention also relates to the production of said suspensions and to the use thereof for the production of pyrotechnic objects. The use of at least one hydrofluoroether as a non-solvent is particularly suitable.

The invention discloses a method for spheroidizing a hexanitrohexaazaisowurtzitane (HNIW) explosive. The method comprises the following steps: I. adding explosive crystals into an etching liquid, heating to a certain temperature, mechanically agitating for certain time, and then filtering and washing the explosive; II. adding the explosive in the step I. into a surface polishing solvent, mechanically agitating at normal temperature, then filtering and washing materials, and drying to obtain the spherodized explosive crystals. The method is applicable to spheroidization of CL-20 crystals with various particle size and various crystal forms, is simple in technological flow, mild in reaction conditions, good in reproductivity, high in yield, and applicable to industrial batch production; the prepared spheroidized CL-20 explosive crystal product is approximately spherical, has less edges and smooth surfaces; the internal defects of the particle crystals are fewer, the open-setting stacking density is high, and the mechanical sensitivity is obviously reduced.

The invention discloses a method for preparing a BTF-HNIW (benzotrifuroxan- hexanitrohexaazaisowurtzitane) eutectic explosive. The method comprises the following steps of: (1) preparing a saturated solution of BTF-HNIW, namely adding sufficient BTF into a crystallization solvent, raising the temperature to be between 20 and 50 DEG C, dissolving and filtering to obtain a saturated solution of the BTF, and adding sufficient HNIW into the saturated solution of the BTF, dissolving and filtering to obtain the mixed saturated solution of BTF-HNIW; and (2) preparing the BTF-HNIW eutectic explosive, namely placing the mixed saturated solution of the BTF-HNIW into a beaker, placing the beaker in a constant temperature incubator and keeping standing, evaporating a solvent, and drying to obtain the BTF-HNIW eutectic explosive. By the method, the free-running property and energy of the BTF are effectively improved, the sensitivity of the HNIW is reduced, and the safety of the HNIW is improved, so that the BTF-HNIW eutectic explosive is high in free-running property, high in detonation performance and high in safety and can be used as a novel high-energy initiating explosive. The method for preparing the BTF-HNIW eutectic explosive is simple.

The invention discloses a preparation method of a high-energy composite structure explosive, which comprises the following steps: forming a quasi-core-shell structure by a metastable intermolecular composite material, polydopamine and an ammonium nitrate explosive, wherein the ammonium nitrate explosive is coated by the metastable intermolecular composite material, a bonding interface between the metastable intermolecular composite material and the ammonium nitrate explosive is made of polydopamine, the metastable intermolecular composite material is composed of nano aluminum powder and one of ferric oxide, copper oxide and polytetrafluoroethylene, the mass ratio of the nano aluminum powder to any one of ferric oxide, copper oxide and polytetrafluoroethylene is (1-4):(3-5), and the ammonium nitrate explosive is one or more of cyclonite RDX, octogen HMX and hexanitrohexaazaisowurtzitane CL-20. The preparation method provided by the invention is simple in process, and the structure of the high-energy composite structure explosive and the ratio of the modified ammonium nitrate explosive to the metastable intermolecular composite material can be accurately controlled through reaction conditions and doping amount; and the used raw materials are low in cost, and large-scale batch preparation can be realized.

The invention discloses a simulation method for CL-20 / TNT (Hexanitrohexaazaisowurtzitane / Trinitrotoluene) eutectic crystal base compound. The method comprises the following steps that: opening the crystal information file of CL-20 / TNT eutectic crystal by a material workstation, changing all N-O single bonds in the file into virtual double bonds, and changing a benzene ring into a resonant mode virtual double-bond benzene ring; establishing an ultra-coating model, and cutting the ultra-coating model along (001) and (010) crystal surfaces to obtain three groups of cut models; establishing a PLA(Polylactic Acid) molecular chain, compressing a constructed PEG (Polyethylene Glycol) modular chain step by step, and carrying out molecular dynamics simulation until the density of the PEG modular chain achieves a theoretical value; independently arranging a vacuum layer on the upper parts of the obtained three groups of cut models, filling the vacuum layer with the compressed PEG modular chain,and establishing a high polymer bonding compound model corresponding to the cutting model; and carrying out the molecular dynamics simulation on the high polymer bonding compound model. By use of themethod, the interface bonding performance of different crystal surface models can be researched. The method has the advantages of being simple and safe, good in effects and low in cost.

The present invention describes a novel heavy-metal-free sequence leading to a superior, more economical, and scalable process for the high efficiency conversion of hexaallylhexaazaisowurtzitane (HAllylIW) to hexa(1-propenyl)hexaazaisowurtzitane (HPIW) and hence via reaction with singlet oxygen and subsequent nitrolysis to hexanitrohexaazaisowurtzitane (CL-20).

The invention discloses a rapid preparation method of a CL-20 (hexanitrohexaazaisowurtzitane) and MTNP (1-methyl-3, 4, 5-trinitro pyrazole) eutectic explosive. The method includes the steps of: 1. preparation of CL-20 and MTNP co-crystallization solution: adding CL-20 into an ethanol solvent, raising the temperature to 20DEG C-40DEG C, performing stirring dissolving, then adding MTNP to obtain the co-crystallization solution; 2. rapid preparation of a CL-20 / MTNP eutectic explosive: further stirring the CL-20 and MTNP co-crystallization solution, adjusting the stirring speed to 50-200rpm, rapidly precipitating crystals during stirring, and conducting filtering and drying so as to obtain the CL-20 / MTNP eutectic explosive. The invention also provides a CL-20 / MTNP eutectic explosive. The preparation method provided by the invention has the characteristics of simple process, convenient operation and mild preparation conditions, and is suitable for expanded preparation of eutectic crystals.

The invention discloses a hexanitrohexaazaisowurtzitane and nitroguanidine cocrystallized explosive and a preparation method thereof. The preparation method comprises the following steps of firstly, adding nitroguanidine in a methanol as a solvent, raising the temperature to 45-55 DEG C, performing stirring for dissolution, and performing filtering to obtain a nitroguanidine saturated solution; keeping the solution at the temperature of 45-55 DEG C, adding hexanitrohexaazaisowurtzitane in the nitroguanidine saturated solution, and performing stirring for dissolution to obtain a hexanitrohexaazaisowurtzitane and nitroguanidine saturated crystallization solution; then keeping the mixed crystallization solution obtain in the last step at the temperature of 40-50 DEG C, performing mixing and stirring for 30-60min, stopping stirring, gradually descending the temperature to the room temperature, performing still standing for 1-2 days, enabling the solvent to volatilize, enabling a crystal nucleus to be formed and grow, precipitating a crystal, and performing filtering and drying to obtain a CL-20 / NQ eutectic crystal, wherein the ratio of CL-20 and NQ in the obtained eutectic crystal is 1to 2. For the CL-20 / NQ cocrystallized explosive prepared by the preparation method, the thermal behaviors such as melting and decomposition of the explosive are regulated and controlled, effective reduced sensitivity is realized while the obtained cocrystallized explosive keeps relatively high energy density, and the cocrystallized explosive has better application prospect in the field of high-energy insensitive explosive charging.

The invention provides a preparation method for a gamma-iron trioxide / rGO composite material having a flower-like microsphere structure. The method comprises the following steps: adding a soluble ironsalt into an ethylene glycol solution of graphene oxide, performing uniform stirring, adding a sodium hydroxide aqueous solution dropwise, after adding is finished, performing stirring for 30 min, performing a reaction at the temperature of 150-180 DEG C for 12-18 h, performing washing, and performing drying at the temperature of 200 DEG C for 12 h to obtain the gamma-iron trioxide / rGO compositematerial having the flower-like microsphere structure. According to the method provided by the invention, the surface of iron oxide in the product has a large number of void structures, the special structure significantly increases the specific surface area and reaction active sites, and electron transfer and proton conduction are more facilitated in the process of catalytic pyrolysis of energeticcomponents; and the Fe2O3 / rGO composite material provided by the invention can be used as a combustion catalyst, and has an excellent catalytic effect on energetic material hexanitrohexaazaisowurtzitane (HNIW).

The invention discloses a preparation method of object and subject explosives with crystal cell embedded hydrogen peroxide molecules. The preparation method includes the steps: (1) dissolving urea peroxide raw materials in an organic solvent, closely placing mixture in a low-temperature environment after the materials are sufficiently stirred and dissolved, separating out a urea by-product, and performing filtering to obtain anhydrous hydrogen peroxide filtrate; (2) dissolving HNIW (hexanitrohexaazaisowurtzitane) in a liquid medium to obtain anhydrous HNIW solution after the HNIW are sufficiently stirred and dissolved; (3) mixing the anhydrous hydrogen peroxide filtrate and the anhydrous HNIW solution to obtain mixed solution, enabling the HNIW in the mixed solution to be supersaturated bythe aid of a low-temperature evaporative crystallization technique, and ensuring that water molecules cannot enter a crystallization system; (4) filtering, washing and drying mixed solution after crystals are not separated out to obtain the object and subject explosives with the crystal cells embedded hydrogen peroxide molecules. The method is simple in process, mild in experiment condition and safe to operate, mass preparation is easily implemented, and a new idea is provided for construction of HNIW-based object and subject explosives.

The present invention discloses a preparation method for a hexanitrohexaazaisowurtzitane and naphthoquinone co-crystallized explosive, wherein a crystallization solvent is adopted to prepare a hexanitrohexaazaisowurtzitane and naphthoquinone saturated solution, the saturated solution is placed into a beaker to evaporate the solvent in a constant temperature incubator, and crystallization is performed to obtain the hexanitrohexaazaisowurtzitane and naphthoquinone co-crystallized explosive. According to the present invention, high sensitivity CL-20 and NBQ form co-crystal through intermolecular interactions so as to significantly reduce impact sensitivity of the pure component CL-20, and substantially increase safety performance; and the intermolecular interaction law of co-crystal molecules is further understood, and the obtained effective synthon can be provided for guiding co-crystal design.

The invention relates to a CL-20 and 1-AMTN eutectic explosive and a preparation method thereof, particularly relates to a hexanitrohexaazaisowurtzitane (CL-20) and 1-amino-3-methyl-1,2,3-triazole nitrate (1-AMTN) eutectic explosive and the preparation method thereof, and belongs to the field of energetic materials. The CL-20 and the 1-AMTN are used as raw materials to prepare the CL-20 / 1-AMTN eutectic explosive by a solvent evaporation method. The impact sensitivity of the CL-20 / 1-AMTN eutectic explosive is greatly reduced compared with CL-20, and the safety performance is greatly improved. Compared with 1-AMTN, the eutectic explosive has significantly improved crystal density and detonation velocity, and shows good detonation performance. The preparation condition is mild, the process issimple, and the operation is convenient. The eutectic explosive is a novel high-energy low-sensitivity explosive, can be used for manufacturing low vulnerable explosives and has good application prospects.

The invention discloses a heat-resistant and anti-crystal transition HNIW (hexanitrohexaazaisowurtzitane)-based mixed explosive and a preparation method thereof. The preparation method comprises the following steps: A, adding HNIW-based subjective and objective explosives with active molecules embedded into unit cells into a surface modifier solution with strong adhesion performance so as to enable a modifier to self-assemble on the surfaces of crystals to form dense coating layers; B, dissolving an adhesive in a liquid medium, coating and granulating the modified HNIW crystals to prepare modified modelling powder; C, performing compression moulding on the modified modelling powder to obtain the HNIW-based mixed explosive with heat-resistant and anti-crystal transition performance. The mixed explosive prepared by the preparation method provided by the invention comprises the following components in percent by mass: 85-94% of the HNIW-based subjective and objective explosives, 0.5-5% ofthe surface modifier and 4-10% of the adhesive. According to the preparation method, the HNIW subjective and objective explosive crystals are used as raw materials for surface modification, so that the thermal crystal transition temperature of HNIW is increased by about 30 DEG C, and thus the heat resistance thereof is significantly improved.