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Antibacterial polymer fiber for extracting uranium from water body and preparation method thereof

A polymer, polyacrylonitrile fiber technology, applied in the direction of fiber type, fiber treatment, alkali metal compounds, etc. Bacterial corrosion and destruction, etc., to achieve the effect of strong anti-interference ability, high antibacterial activity and low cost

Inactive Publication Date: 2021-04-13
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since seawater contains a large number of microorganisms, bacteria, and algae, these microorganisms and bacteria will cause biofouling to uranium extraction materials, which will seriously affect the adsorption performance, mechanical properties and service life of uranium extraction materials.
Traditional uranium extraction materials do not have anti-biofouling properties, are easily corroded and damaged by marine bacteria, are difficult to reuse, and have a short service life

Method used

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  • Antibacterial polymer fiber for extracting uranium from water body and preparation method thereof
  • Antibacterial polymer fiber for extracting uranium from water body and preparation method thereof
  • Antibacterial polymer fiber for extracting uranium from water body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Weigh 0.2g of polyhexamethylene biguanide hydrochloride and dissolve it in 20ml of deionized water, weigh 1g of polyacrylonitrile fiber and add polyhexamethylene biguanide hydrochloride solution, then put the mixed solution into the reaction kettle and react at 125°C After 24 hours, it was taken out, rinsed and dried with deionized water and ethanol to obtain the polymer fiber PAN-PHMB.

[0029] 2. Weigh 7.5g of hydroxylamine hydrochloride, prepare a mixed solution of 7.5% hydroxylamine hydrochloride in water and methanol, use sodium hydroxide to adjust the pH value to weakly alkaline, add polymer fiber PAN-PHMB, and react at 65°C for 4 hours. Then it was taken out and rinsed with deionized water and ethanol to obtain the polymer fiber PAO-PHMB.

[0030] 3. Prepare a 2.5% aqueous solution of potassium hydroxide, add the polymer fiber PAO-PHMB obtained in step 2, and react at 60°C for 4 hours, then take it out and rinse it with deionized water and ethanol to obtain th...

Embodiment 2

[0032] 1. Weigh 0.4g of polyhexamethylene biguanide hydrochloride and dissolve it in 20ml of deionized water, weigh 1g of polyacrylonitrile fiber and add polyhexamethylene biguanide hydrochloride solution, then put the mixed solution into the reaction kettle and react at 130°C After 24 hours, it was taken out, rinsed and dried with deionized water and ethanol to obtain the polymer fiber PAN-PHMB.

[0033] 2. Weigh 8.5g of hydroxylamine hydrochloride, prepare a mixed solution of 8.5% hydroxylamine hydrochloride in water and methanol, use sodium hydroxide to adjust the pH value to weakly alkaline, add polymer fiber PAN-PHMB, and react at 65°C for 4 hours. Then it was taken out and rinsed with deionized water and ethanol to obtain the polymer fiber PAO-PHMB.

[0034] 3. Configure a 3.5% aqueous solution of potassium hydroxide, add the polymer fiber PAO-PHMB obtained in step 2, and react at 70°C for 4 hours, then take it out and rinse and dry with deionized water and ethanol to ob...

Embodiment 3

[0036] 1. Weigh 0.6g of polyhexamethylene biguanide hydrochloride and dissolve it in 20ml of deionized water, weigh 1g of polyacrylonitrile fiber and add polyhexamethylene biguanide hydrochloride solution, then put the mixed solution into the reaction kettle and react at 100°C After 24 hours, it was taken out, rinsed and dried with deionized water and ethanol to obtain the polymer fiber PAN-PHMB.

[0037] 2. Weigh 9.5g of hydroxylamine hydrochloride, prepare a mixed solution of 9.5% hydroxylamine hydrochloride in water and methanol, use sodium hydroxide to adjust the pH value to weakly alkaline, add polymer fiber PAN-PHMB, and react at 65°C for 4 hours. Then it was taken out and rinsed with deionized water and ethanol to obtain the polymer fiber PAO-PHMB.

[0038] 3. Configure a 4.5% potassium hydroxide aqueous solution, add the polymer fiber PAO-PHMB obtained in step 2, and react at 80°C for 3 hours, then take it out and rinse and dry with deionized water and ethanol to obtai...

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Abstract

The invention discloses an antibacterial polymer fiber for extracting uranium from a water body and a preparation method of the antibacterial polymer fiber. The antibacterial polymer fiber is prepared from the following raw material components: polyacrylonitrile fiber, polyhexamethylene biguanidine hydrochloride and hydroxylamine hydrochloride. The preparation method of the antibacterial polymer fiber comprises the following steps: firstly, preparing a graft copolymer PAN-PHMB from the polyacrylonitrile fiber and the polyhexamethylene biguanidine hydrochloride; secondly, using the hydroxylamine hydrochloride for an amidoximation reaction to preparePAO-PHMB; and finally, carrying out alkali treatment reaction by using potassium hydroxide to prepare the polymer PAO-PHMB-A. The antibacterial polymer fiber has efficient coordination performance and antibacterial performance, can effectively capture uranium ions and has the advantages of being large in adsorption capacity, good in stability, high in anti-interference capacity and high in antibacterial capacity, and the preparation method of the antibacterial polymer fiber is simple, convenient, low in cost and wide in market prospect.

Description

technical field [0001] The invention belongs to the technical field of extracting uranium from seawater and treating uranium-containing wastewater, and in particular relates to an antibacterial polymer fiber used for extracting uranium from water bodies and a preparation method thereof. Background technique [0002] With the continuous development and utilization of energy, the depletion of fossil fuels and the deterioration of the environment caused by the combustion of traditional fuels have caused human beings to turn their attention to the development of new energy. The currently developed new energy mainly includes wind energy, water energy, solar energy, tidal energy and nuclear energy. Among them, nuclear energy has attracted widespread attention due to its high efficiency and cleanliness, and has been widely used in nuclear power, nuclear medicine, agronomy and industry. As of 2016, a total of 30 countries in the world are using nuclear power, and another 15 non-nucl...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F1/50C22B60/02D06M11/63D06M15/37D06M16/00C02F103/08D06M101/28
CPCB01J20/28023B01J20/265C02F1/285C02F1/50D06M15/37D06M11/63D06M16/00C22B60/0265D06M2101/28C02F2103/08
Inventor 文君何宁宁李昊
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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