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Preparation method of hyperbranched amine polymer modified cotton fiber adsorption material

A technology of adsorption materials and polymers, applied in the fields of alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of low cross-linking strength and cross-linking efficiency, inability to reuse, easy to bring in impurities, etc. , to achieve broad application prospects and development space, reduce the cost of preparation process, and the effect of less impurities

Active Publication Date: 2018-08-14
哈尔滨益希欧材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sodium periodate is used as the oxidizing agent, which is easy to bring in impurities
At the same time, glutaraldehyde is used as a cross-linking agent, the cross-linking strength and cross-linking efficiency are low, and several modifiers are mixed to pollute each other and cannot be reused, resulting in high cost

Method used

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  • Preparation method of hyperbranched amine polymer modified cotton fiber adsorption material
  • Preparation method of hyperbranched amine polymer modified cotton fiber adsorption material
  • Preparation method of hyperbranched amine polymer modified cotton fiber adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The alkalized cotton fiber sample with dry constant weight is completely submerged in 200 g mass concentration of 1% trimesoyl chloride solution, and sealed. Then place it in an ultrasonic cleaning machine and sonicate for 10 min at 40°C. After ultrasonication, take it out and place it in a constant temperature water bath at 40°C for 80 minutes, then wash it with n-hexane for 6 times, spread the cotton fiber sample on the filter paper and place it in an ultrafiltration cup, and put 150g of hyperbranched polyamide with a mass concentration of 5% The amine aqueous solution is poured from above, and after sealing, 0.02MPa nitrogen gas is passed, and the experiment is repeated 5 times to make the hyperbranched polyamidoamine fully pass through the cotton fiber sample. After the end, take it out and wash it with distilled water until the cleaning solution is neutral. Spread the modified cotton fiber sample on a petri dish and place it in a vacuum drying oven at 80°C to dry ...

Embodiment 2

[0045] The alkalized cotton fiber sample with dry constant weight is completely submerged in 150 g of a mass concentration of 3% trimesoyl chloride solution, and sealed. Then place it in an ultrasonic cleaning machine and sonicate for 8 min at 30°C. After ultrasonication, take it out and put it in a constant temperature water bath at 30°C for 100 minutes, then wash it with n-hexane for 5 times, spread the cotton fiber sample on the filter paper and put it in an ultrafiltration cup, and put 100g of hyperbranched polyamide with a mass concentration of 10% The amine aqueous solution is poured from above, and after airtight, 0.03MPa nitrogen gas is passed. The experiment is repeated 6 times, so that the hyperbranched polyamidoamine can fully pass through the cotton fiber sample. After the end, take it out and wash it with distilled water until the cleaning solution is neutral. Spread the modified cotton fiber sample on a petri dish and place it in a vacuum drying oven to dry and ...

Embodiment 3

[0049] The alkalized cotton fiber sample with dry constant weight is completely submerged in 150 g of a mass concentration of 1.5% trimesoyl chloride solution, and sealed. Then place it in an ultrasonic cleaning machine and sonicate for 15 min at 50°C. After ultrasonication, take it out and put it in a constant temperature water bath at 50°C for 60 minutes, then wash it with n-hexane for 4 times, spread the cotton fiber sample on the filter paper and place it in an ultrafiltration cup, and put 200g of hyperbranched polyamide with a mass concentration of 8% The amine aqueous solution is poured from above, and after airtight, 0.01MPa of nitrogen gas is passed to make the hyperbranched polyamidoamine fully pass through the cotton fiber sample, and the experiment is repeated 5 times. After the end, take it out and wash it with distilled water until the cleaning solution is neutral. Spread the modified cotton fiber sample on a petri dish and place it in a vacuum drying oven at 90°...

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Abstract

The invention provides a preparation method of a hyperbranched amine polymer modified cotton fiber adsorption material. The preparation method comprises the following steps: firstly, soaking cotton fibers subjected to alkaline treatment into a trimesoyl chloride solution, sealing with a preservative film, carrying out ultrasonic treatment and then taking out the cotton fibers, putting into a thermostat water bath with the temperature of 15 to 50 DEG C, carrying out thermostatic waterbath for 30 to 120 minutes and then cleaning with organic cleaning liquid; secondly, tiling the cotton fibers onfilter paper, putting into a filter and repeating the following operations for 3 to 6 times: pouring a hyperbranched amine polymer aqueous solution from the upper part, sealing, introducing nitrogen,pressurizing to 0.01 to 0.05 MPa, taking out after the pressurization is finished, and then washing with distilled water until the cleaning liquid is neutral; thirdly, tiling the modified cotton fibers on a culture dish and putting into a vacuum drying oven for drying and fixing. The preparation process disclosed by the invention is simple, and the operation is easy to control; the obtained modified cotton fiber material can adsorb and desorb pollutants such as heavy metal ions and organic dyes, so that removal or recovery of the pollutants is realized.

Description

technical field [0001] The invention relates to a preparation method of a natural fiber modified material used for water treatment. Background technique [0002] Since a large amount of wastewater containing heavy metal ions and organic dyes is discharged into the water body, causing serious pollution to the environment and even destroying the ecological balance, the treatment of this type of wastewater has become a serious environmental protection problem. In order to solve this kind of problems, various techniques such as precipitation, adsorption, redox, and biological methods are often used. Among these techniques, adsorption techniques using adsorbent materials capable of trapping pollutants are favored. Through the regulation of adsorption-desorption conditions, the adsorption and desorption of pollutants such as heavy metal ions and organic dyes can be realized, and the removal or recovery of pollutants can be realized. [0003] Cotton is a rich, biodegradable, natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/22C02F1/28C02F101/20C02F101/30
CPCB01J20/22B01J20/28023C02F1/286C02F2101/20C02F2101/308
Inventor 赵方波刘昊松杨中豪王丽红米嘉刘帅潘超
Owner 哈尔滨益希欧材料科技有限公司
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