9 results about "Trinitrotoluene" patented technology

The application discloses a trinitrotoluene-based composite melt-cast explosive and a preparation method and application thereof, wherein the trinitrotoluene-based composite melt-cast explosive is prepared from trinitrotoluene, a physical insensitive agent and a bidirectional functional structure directing agent according to certain mass percentage components; the physical insensitive agent is microcrystalline wax, and the bidirectional functional structure directing agent is sorbitan monooleate; the sorbitan monooleate is used for synchronously realizing interface compatibility and interface combination between the trinitrotoluene and the microcrystalline wax, and regulating the crystallization behavior of the trinitrotoluene. The melt-cast explosive realizes high uniformity and high consistency of engineering charging quality, and the mechanical, safety and detonation performances are synergistically enhanced.

A method for the synthesis of 2,4,6-trinitrotoluene (TNT) using a flow reactor, the method comprising the steps of: a) providing an input flow of sulphuric acid comprising at least 50 wt% sulphuric ac

The present invention discloses an α-Fe2O3 / RGO / mpg-C3N4 nanocomposite material and its preparation method and application, belonging to the field of materials science and technology. The mpg-C3N4 material is modified in terms of morphology control, element doping, and heterostructure construction, and a Z-type heterojunction photocatalyst with a solid electron mediator is synthesized based on the mpg-C3N4. By controlling the synthesis conditions, a large specific surface area, visible light response, non-toxic and environmentally friendly α-Fe2O3 / RGO / mpg-C3N4 nanocomposite material is prepared. This nanocomposite material overcomes the inherent shortcomings of single semiconductors g-C3N4 and α-Fe2O3, such as small specific surface area, low charge carrier separation efficiency, and limited visible light absorption capacity. The structure and properties of the nanocomposite material are characterized by XPS, XRD, SEM, TEM, FT-IR, BET, UV-vis DRS, and Zeta potential analysis, proving the successful preparation of the material. It was used to photocatalytically degrade the explosive 2,4,6-trinitrotoluene. A series of exploratory experiments showed that under 12 hours of illumination, the photodegradation rate of TNT by 10wt% α-Fe2O3 / RGO / mpg-C3N4 nanocomposite material can reach 99.57%, which is better than other materials and methods.

The invention discloses a propeller alkane multi-nitro energetic compound, which has the structure that the compound has higher enthalpy of formation and better stability, and multiple properties are superior to those of the traditional explosive trinitrotoluene; the invention also provides a synthesis method of the propeller alkane polynitro substituted energetic compound, and the method takes bicyclo [1.1. 1] pentane-1, 3-dinitrile as a raw material, and the energetic compound can be obtained through four-step reaction. The synthesis method has the advantages of easily available raw materials, simplicity and convenience in operation, high total yield and the like.

The invention belongs to the field of surface enhanced Raman scattering, and discloses a method for constructing an SERS (Surface Enhanced Raman Scattering) substrate with high-density hot spots based on capillary force for detecting TNT (Trinitrotoluene). The SERS hot spot is constructed on the basis of a periodic Ag-plated silicon nanorod array, target molecules are adsorbed by utilizing a periodic Ag-plated silicon nanorod array substrate, and then nanorods are mutually pulled together by utilizing capillary force generated by solvent volatilization to form a cluster, so that the gap SERS hot spot is generated. The periodic Ag-plated silicon nanorod array is based on a single-layer polystyrene microsphere template, a silicon nanorod array is obtained in a mode of combining reactive ion etching and metal-assisted chemical etching, and an Ag film is deposited in a magnetron sputtering mode to obtain the Ag-plated silicon nanorod array. When TNT is detected, after the substrate adsorbs TNT molecules, the nanorods are pulled together directly by capillary force to generate gap SERS hot spots, so that the detection efficiency is improved. The method for constructing the hot spots based on the external stress is simple, convenient and efficient, and has higher sensitivity and reproducibility.

The present invention relates to a method (100) for obtaining a reagent which enables the synthesis of nitrogen-doped carbon dots with fluorescent properties and the simultaneous detection of both latent fingerprints and fingerprints and TNT (trinitrotoluene) in fingerprints contaminated with TNT using the solution thereof obtained by dissolving in alcohol, and to a reagent obtained by the method (100).

Explosives using thermally expandable microspheres (TEMs) in a solid matrix are disclosed that facilitate tunable changes in local density, porosity, and ultimately, shock sensitivity. Solid high explosive systems with “on demand” shock sensitivity may be created. A relatively small fraction (e.g., 1% or less) of TEMs may incorporated during the manufacturing process of the solid matrix explosive (e.g., polymer-bonded explosives (PBX), trinitrotoluene (TNT), etc.). The fraction of TEMs used to achieve the desired explosive properties will depend on the base explosive material to achieve the desired initiation sensitivity.

The invention provides a D-A type polytriphenylamine ketone compound, a preparation method thereof and application of the D-A type polytriphenylamine ketone compound in drug detection and TNT content detection in a water body, and belongs to the technical field of drug quality detection and environment detection in the water body. The structural formula of the D-A type polytriphenylamine ketone compound provided by the invention is as shown in the formula lt, igt; the compound is shown in the specification, and is prepared from 4, 4 '-difluorobenzophenone, a diaromatic imine compound and potassium carbonate through a C-N coupling reaction one-step method in a nitrogen atmosphere. The D-A type polytriphenylamine ketone compound has relatively strong luminescence property, can be well used for detecting the quality of a drug such as budesonide suspension, and can also be used for detecting trace TNT (trinitrotoluene). The PTPAK-2 has a good fluorescence quenching response to a budesonide suspension, and the detection limit of the PTPAK-2 to TNT (trinitrotoluene) is 0.25 [mu] mol / L. Meanwhile, the compound shows good anti-interference capability, and is almost not influenced by potential factors of other nitro compounds and metal cations. # imgabs0 #

The invention discloses an automatic screening mechanism for disassembling and recycling retired TNT, and particularly relates to the technical field of screening, the automatic screening mechanism mainly comprises a screening platform, a rotating shaft and a tooth roller, the rotating shaft is located above the screening platform, the tooth roller is fixed to one end of the rotating shaft, and a safety locking mechanism is installed below the tooth roller; the safety locking mechanism comprises a sliding frame fixedly installed below the tooth roller, the sliding frame is fixedly connected with the screening platform, the inner wall of the sliding frame is rotationally connected with a screw rod, and a gear motor is fixedly installed on one side of the sliding frame. A safety locking mechanism is adopted, a gear motor drives a screw rod to rotate, the screw rod drives two sleeve blocks to get close to each other under the action of thread transmission force, a torque force sensor achieves torque force sensing on a tooth roller, a driving belt wheel is closed through a controller, dust explosion caused by continuous operation of equipment is avoided, and the use safety is greatly improved.