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Preparation method of convenient and fast nanofiber-based wiping cloth for nuclear pollution equipment

A technology of nanofiber and nuclear pollution, applied in the field of cleaning treatment, can solve the problems of secondary pollution of water body, expensive anti-diffusion migration, unacceptable and other problems, achieve large processing capacity, avoid secondary pollution, and be convenient and practical again

Pending Publication Date: 2020-09-11
LOGISTICS UNIV OF CAPF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the current method has the following disadvantages: first, it needs more complicated or expensive anti-diffusion and migration auxiliary environmental protection facilities; second, because the force between different types of pollutants and the membrane is different, the type of pollutants directly affects the cleaning agent. For the choice of pollutants, efficient and economical cleaning agents must be selected according to the type of pollutants
These measures are not advisable in an emergency
[0005] In addition to the above methods, nuclear contaminated solid surfaces are mainly treated by high-pressure water washing, but this will cause secondary pollution of water bodies

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of convenient and fast nanofiber-based wiping cloth for nuclear pollution equipment

Examples

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Effect test

Embodiment 1

[0026] A method for preparing a nanofiber-based convenient wiping cloth for nuclear pollution equipment, the specific preparation method of which is:

[0027] 1. Using chitosan, chitin and polyvinyl alcohol as raw materials, dissolve the above raw materials in a solvent, stir at a temperature of -80°C at a stirring speed of 50-300 rpm, stir until completely dissolved, and let stand for 2 hours to remove bubble to obtain a hydrophilic polymer solution;

[0028] 2. Using electrospinning technology under the conditions of voltage 20kV, receiving distance 10cm, and spinning liquid supply volume 1.2mL / h; hydrophilic nanofibers were prepared in the above solution and prepared on non-woven fabric as the base material It is compiled into a wiping cloth, and the diameter distribution of the nanofibers is controlled within the range of 50nm-500nm, and the concentration is above 80%. within 5%.

[0029] 3. The above-mentioned wiping cloth is modified with a functional group, the mass r...

Embodiment 2

[0033] A method for preparing a nanofiber-based convenient wiping cloth for nuclear pollution equipment, the specific preparation method of which is:

[0034] 1. Using chitosan as a raw material, dissolve chitosan in a solvent, at room temperature -80°C, stir at a speed of 50-300 rpm, stir until completely dissolved, let it stand for 2 hours to defoam, and obtain hydrophilic polymer solution;

[0035] 2. Using electrospinning technology under the conditions of voltage 20kV, receiving distance 10cm, and spinning liquid supply volume 1.2mL / h; hydrophilic nanofibers were prepared in the above solution and prepared on non-woven fabric as the base material It is compiled into a wiping cloth, and the diameter distribution of the nanofibers is controlled within the range of 50nm-500nm, and the concentration is above 80%. within 5%.

[0036] 3. The above-mentioned wiping cloth is modified with functional groups, the mass ratio of spinning cloth and functional group reactants is 1: (1-...

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Abstract

The invention relates to a preparation method of convenient and fast nanofiber-based wiping cloth for nuclear pollution equipment. According to the preparation method, water-soluble polymer is used asa raw material, nanofibers are prepared through an electrostatic spinning method, the wiping cloth is prepared on a base material, the wiping cloth can improve the adsorption amount of radioactive metal ions through surface modification, the regeneration performance of the wiping cloth is improved, and rapid and deep cleaning treatment of the surface of nuclear pollution or radioactive pollutionsolid is achieved. The specific preparation method of the wiping cloth comprises the following steps of dissolving the hydrophilic polymer serving as the raw material into a solution for later use; and the hydrophilic nanofibers are prepared in the solution through an electrostatic spinning technology and woven into the wiping cloth on the material with a non-woven fabric as a base. The surface ofthe wiping cloth is modified through functional groups, the adsorption amount of the radioactive metal ions of the wiping cloth is increased, the regeneration performance of the wiping cloth is improved, and the fast deep cleaning treatment on the nuclear pollution or radioactive pollution solid surface is realized.

Description

technical field [0001] The invention relates to the field of cleaning treatment on the surface of nuclear-contaminated solid materials, in particular to a method for preparing a nanofiber-based convenient wiping cloth for nuclear-contaminated equipment. Background technique [0002] Accidents in nuclear power plants, "dirty bomb" explosions, military equipment and nuclear medicine research, storage of radioactive waste, and assembly and transportation of nuclear fuel can cause a large amount of radioactive substances to be released abnormally, forming radioactive plumes and high-level radioactive deposits. Therefore, after the accident, how to effectively control the spread of radioactive deposits and decontaminate radioactive contamination in a timely manner is not only the focus and difficulty of dealing with nuclear emergencies, but also the key point of nuclear weapon protection and emergency response to nuclear accidents. And the indispensable technical requirements in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382D04H1/728D06B3/10D01F8/18D01F8/10D01F9/00B08B1/00
CPCD04H1/4382D04H1/728D06B3/10D01F8/18D01F8/10D01F9/00B08B1/50B08B1/143
Inventor 李倩高宏生杨震孟斌常留栓胡骁葛强
Owner LOGISTICS UNIV OF CAPF
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