5 results about "Ammonium perchlorate" patented technology

The application discloses an anti-migration ferrocenyl hyperbranched polymer burning rate catalyst, a preparation method thereof and application thereof. The ferrocenyl hyperbranched polymer is prepared by one-pot method through amidation reaction with 1,1'-ferrocene dicarboxylic acid and tri(2-aminoethyl)amine as monomers. The ferrocenyl hyperbranched polymer has high anti-migration performance in a composite solid propellant and can reduce the thermal decomposition temperature of ammonium perchlorate.

This invention discloses an NPTTz-based anionic energetic complex, prepared by a volatilization method using 6-(4-nitro-1H-pyrazole-1-yl)-[1,2,4]triazolo[4,3-b][1,2,4,5]tetraazine and metal nitrates as raw materials. The NPTTz-based anionic energetic complex of this invention exhibits a detonation response upon laser irradiation, demonstrating good safety and detonation performance. It can be used as a laser-initiated detonator or as a component of explosives and propellants. Furthermore, the NPTTz-based anionic energetic complex of this invention exhibits good catalytic activity and can be used as an ammonium perchlorate catalyst, showing promising application prospects in the field of high-energy insensitive energetic materials.

This invention provides a boron-based composite energetic material with sodium molybdate assembled with an oxidant and its preparation method. The material includes a boron matrix, an energetic oxidant assembled on the boron matrix, and sodium molybdate dispersed within the energetic oxidant. The boron matrix is ​​boron powder, mono-modified boron powder, or binary modified boron powder. The energetic oxidant is ammonium perchlorate, ammonium nitrate, or potassium perchlorate. The morphology of the boron-based composite energetic material is rough-surfaced spherical particles. The ignition delay time of the boron-based composite energetic material with sodium molybdate assembled with an oxidant prepared by spray drying is 37-30 ms, which is half that of boron powder or surface-modified boron powder; the oxidation peak temperature of this composite energetic material is 560-533℃, which is more than 100℃ lower than that of boron powder or surface-modified boron powder.

The application provides a kind of oxidant agglomerated multi-element boron-based composite energetic material and preparation method, and the multi-element boron-based composite energetic material is made of energetic oxidant, boron powder, metal element and metal oxide;The energetic oxidant is ammonium perchlorate, ammonium nitrate or potassium perchlorate.The metal oxide is titanium dioxide, bismuth oxide, vanadium oxide or molybdenum oxide.The metal element is molybdenum, magnesium or aluminum.The morphology of multi-element boron-based composite energetic material is rough surface spherical particle.In the application, the preparation method of one pot is used, and the energetic oxidant, boron powder, metal element particle and metal oxide particle are uniformly dispersed in water to form a solid-liquid mixed feed liquid, and the spray drying technology is used to prepare the spherical particle sample composed of numerous particles, which has the technical advantages of simple preparation, high efficiency, good repeatability and low cost.The multi-element boron-based composite energetic material has lower oxidation peak temperature and higher combustion heat value, and has very good application prospect.

The application provides an oxidant-assembled boron-based composite energetic material with high sphericity and a preparation method, comprising a boron matrix, and an energetic oxidant assembled on the boron matrix; the boron matrix is boron powder, monovalent modified boron powder or divalent modified boron powder; the monovalent modified boron powder is obtained by depositing metal oxide on the surface of boron powder by using an atomic layer deposition method; the divalent modified boron powder is obtained by depositing metal oxide and metal molybdenum on the surface of boron powder by using an atomic layer deposition method; the energetic oxidant is ammonium perchlorate, ammonium nitrate or potassium perchlorate; and the boron-based composite energetic material has a spherical particle shape. The composite energetic material prepared by using a spray drying technology has a short laser ignition delay time, excellent ignition and combustion performance, and has a very good application prospect. The application can simultaneously solve the problems of limited boron powder surface activity, nanoscale uniform composite of boron powder and energetic oxidant, and integrated solution of optimization of spheroidization morphology and improvement of process performance.