Chemical warfare agent digestion material and preparation method of fiber material modified by chemical warfare agent digestion material

Abstract

The invention discloses a preparation method of a chemical warfare agent digestion material. The preparation method comprises the following steps: (1) dissolving zircon salt and ferric chloride hexahydrate in water, and stirring; (2) dropwise adding stronger ammonia water until the pH is 4-12; and (3) washing, airing and grinding. The invention also discloses a preparation method of the fiber material. The preparation method comprises the following steps: (1) dissolving trihydroxymethyl aminomethane in water, and adjusting the pH value to 4-12; (2) adding dopamine hydrochloride and nanofiber cloth, stirring, fishing out, washing and airing; (3) dissolving zircon salt and ferric chloride hexahydrate in water, and stirring; (4) soaking the nanofiber cloth in the mixed solution, dropwise adding stronger ammonia water until the pH is 4-12, and continuing soaking; and (5) fishing out, washing and airing. According to the method, Zr salt and Fe salt which are low in price are used as raw materials, the zirconium-iron hydroxide containing the Zr-OH-Fe structure is synthesized through a simple coprecipitation method, and efficient digestion can be achieved by directly mixing the zirconium-iron hydroxide with the chemical warfare agent at the room temperature.

Description

technical field [0001] The invention relates to the technical field of chemical warfare agent digestion and protection materials, and more specifically relates to a preparation method of a chemical warfare agent digestion material and a modified fiber material thereof. Background technique [0002] Chemical warfare agents (chemical warfare agents, CWAs) are the basic elements of chemical weapons, and generally should have the following characteristics: strong toxicity, fast action, long-lasting poisonous effect, multiple ways of killing, wide killing range, difficult to find, difficult to protect and treat, It is easy to produce, stable in nature and easy to store. It is the basic raw material for the manufacture of chemical weapons known as the "poor country atomic bomb", and it is a weapon of mass destruction. Inexpensive neurogenic chemical warfare agent (a typical chemical warfare agent) is the biggest threat, which poses a huge threat to human life safety and national s...

AI Technical Summary

Problems solved by technology

Among them, materials such as bleaching powder, halides, and zeolites can all achieve the purpose of digesting neurochemical warfare agents under solid conditions, but this process takes a long time, and at the same time, bleaching powders are corrosive to the reaction vessel, which further limits the use of the chemical warfare agent. Use of materials like; liquid alkoxides and H 2 o 2 The active system has a good digestion ability for neurochemical warfare agents, but its specific use requires a solution-based system, which will be greatly limited in actual use; MOF-based materials for digesting neurochemical warfare agents are mainly based on Zr -MOF-based, MOF itself has porosity, large specific surface area and exposed active sites can play a good role in the digestion of neurochemical warfare agents, but the preparation process of MOF generally takes a long time, and Low yield is also an important reason for limiting MOF materials; using a small amount of biological enzymes can show a good digestion effect on the digestion of neurochemical warfare agents at room temperature, but such materials are not easy to preserve, easy to inactivate, and the price is extremely high. Expensive, so that biological enzyme materials cannot be used on a large scale

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