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Explosive material nanowire and preparation method thereof

A technology of nanowires and explosives, which is applied to explosives processing equipment, single substance used as explosives, explosives, etc., can solve the problems such as the preparation method of nanowires without explosives, and achieve uniform morphology, mild reaction conditions and unique nanowire structure. Effect

Inactive Publication Date: 2018-06-15
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These inventions have certain reference significance for the preparation of nano energetic materials, but judging from the existing public information, there is no report on the preparation method of explosive nanowires

Method used

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  • Explosive material nanowire and preparation method thereof
  • Explosive material nanowire and preparation method thereof

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Effect test

Embodiment 1

[0022] Weigh 0.5g of 1,1'-dihydroxy-5,5'-bitetrazolium dihydroxylamine salt, add 100g of water, heat to 75°C until the explosive is completely dissolved, and prepare an explosive solution with a concentration of 0.5% by mass . The solution was transferred to a polytetrafluoroethylene bottle, and quenched with liquid nitrogen for 5 minutes until the solution was completely frozen into a solid state. The freeze-solidified solution is freeze-dried under vacuum conditions, the freeze-drying temperature is -80° C., the vacuum degree is 1.5 mba, and the treatment time is 48 hours, and the explosive with the nanowire structure can be obtained. figure 1 and figure 2 2000 times and 10000 times scanning electron micrographs of the nano-array ammonium perchlorate obtained according to this embodiment, respectively. The diameter of the obtained explosive nanowire is about 150 nm, and the length of the nanowire is about 50 μm.

Embodiment 2

[0024] Weigh 0.1g of 1,1'-dihydroxy-5,5'-bitetrazole dihydroxylamine salt, add 100g of water, heat to 60°C until completely dissolved, and prepare an explosive solution with a concentration of 0.1% by mass. The solution was transferred to a polytetrafluoroethylene bottle, and quenched with liquid nitrogen for 7 minutes until the solution was completely frozen into a solid state. The freeze-solidified solution is freeze-dried under vacuum conditions, the freeze-drying temperature is -65°C, the vacuum degree is 0.8mba, and the treatment time is 60h, and the explosive with the nanowire structure can be obtained. The diameter of the obtained explosive nanowire is 100 nm, and the length of the nanowire is 20 μm.

Embodiment 3

[0026] Weigh 3.0g of 1,1'-dihydroxy-5,5'-bitetrazole dihydroxylamine salt, add 197g of water, heat to 90°C until completely dissolved, and prepare an explosive solution with a concentration of 1.5% by mass. The solution was transferred to a polytetrafluoroethylene bottle, and quenched with liquid nitrogen for 10 min until the solution was completely frozen into a solid state. The freeze-solidified solution is freeze-dried under vacuum conditions, the freeze-drying temperature is -60° C., the vacuum degree is 0.12 mba, and the treatment time is 24 hours, and the explosive with the nanowire structure can be obtained. The diameter of the obtained explosive nanowire is 250 nm, and the length of the nanowire is 90 μm.

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Abstract

The invention discloses a preparation method for an explosive material nanowire. The method comprises the following steps: A, dissolving dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate into water, and heating the solution until the salt is completely dissolved; B, transferring the solution into a polytetrafluoroethylene bottle, and performing shock chilling by adopting liquid nitrogen until thesolution is completely frozen to a solid state; and C, performing freeze drying on the frozen and solidified solution under vacuum conditions, so as to obtain the explosive material with a nanowire structure. The invention also discloses the explosive material nanowire. The product provided by the invention has a unique nanowire structure, uniform morphology, and an important application prospectin the fields of initiating explosive materials, booster explosive materials and the like used for weapons; and the method provided by the invention has a simple preparation process, good repeatability and mild reaction conditions, and is easy to enlarge.

Description

technical field [0001] The invention relates to an energetic material and a preparation method thereof, in particular to an explosive nanowire and a preparation method thereof. Background technique [0002] 1,1'-Dihydroxy-5,5'-bitetrazolium dihydroxylamine salt (TKX-50) was synthesized and reported for the first time in 2012. As an energetic ion salt, it has typical characteristics of high energy and low sensitivity. The crystal density of TKX-50 is 1.918g / cm 3 , the calculated detonation velocity is 9679m / s, and the impact sensitivity and friction sensitivity are low. It can be used in high-power mixed explosives, high-energy propellants and other fields, and has important military application prospects. As a new type of energetic material, the current research on TKX-50 mainly focuses on the synthesis process control. Patent (CN103524444A, 2013), patent (CN104829548A, 2015) disclosed the synthesis method of TKX-50, Ren Xiaoting et al. (Journal of Fire and Explosives, 39,...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B49/00C06B45/00B82Y40/00C07D257/04
CPCB82Y40/00C06B21/00C06B45/00C06B49/00C07D257/04
Inventor 杨志剑巩飞艳刘佳辉张建虎丁玲
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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