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Preparation method of filter paper with adjustable pore size for ion adsorption

An ion adsorption and filter paper technology is applied in the field of filter paper to achieve the effects of abundant raw materials, simple preparation method and easy production

Active Publication Date: 2017-10-17
江西中竹生物质科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a preparation method of filter paper with adjustable aperture for ion adsorption, which can effectively solve the problem of removing ion pollutants and biological small molecule pollutants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the specific implementation of the present invention, the step (1) medium-speed qualitative filter paper has a diameter of 12.5 cm, a pore size of 15-20 microns, and an ash content of ≤0.15. The mass ratio of medium-speed qualitative filter paper and deionized water is: medium-speed qualitative filter paper 10 %, deionized water 90%, soak the medium-speed qualitative filter paper in deionized water for 15 hours;

[0019] The ultrasonic treatment liquid in the step (2) is made by mass percentage: 80% deionized water and 20% hydrogen peroxide;

[0020] The polymer solution in the step (4) is made by mixing uniformly 96% deionized water and 4% polyetherimide (PEI) in terms of mass percentage;

[0021] The polymer solution with opposite charges in the step (5) is prepared by mixing 96% deionized water and 4% polystyrene sodium sulfonate (PSS) uniformly.

Embodiment 2

[0023] In the specific implementation of the present invention, the mass ratio of the medium-speed qualitative filter paper and deionized water in the step (1) is: 15% of medium-speed qualitative filter paper and 85% of deionized water, soak the medium-speed qualitative filter paper with deionized water 20h;

[0024] The ultrasonic treatment liquid in the step (2) is made by mass percentage: 72% deionized water and 28% hydrogen peroxide;

[0025] The polymer solution in step (4) is made by mixing uniformly 97% deionized water and 3% polyetherimide (PEI) in terms of mass percentage;

[0026] The polymer solution with opposite charges in the step (5) is prepared by mixing 97% deionized water and 3% polystyrene sodium sulfonate (PSS) in a weight percentage.

Embodiment 3

[0028] In the specific implementation of the present invention, the mass ratio of the medium-speed qualitative filter paper and deionized water in the step (1) is: 22% of medium-speed qualitative filter paper and 78% of deionized water, soak the medium-speed qualitative filter paper with deionized water 22h;

[0029] The ultrasonic treatment liquid in the step (2) is made by mass percentage: 82% deionized water and 18% hydrogen peroxide;

[0030] The polymer solution in step (4) is prepared by mixing uniformly 98% deionized water and 2% polyetherimide (PEI) in terms of mass percentage;

[0031] The polymer solution with opposite charges in the step (5) is prepared by mixing 98% deionized water and 2% polystyrene sodium sulfonate (PSS) uniformly.

[0032] It can be seen from the above that the present invention relates to a filter paper structure with adjustable pore size and a preparation method thereof. The filter paper structure with adjustable pore size is composed of ordi...

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Abstract

The invention relates to a preparation method of aperture-adjustable filter paper for ion adsorption. The removal problem of ion pollutants and biological small-molecular pollutants can be effectively solved. The method includes the steps of cutting medium-speed qualitative filter paper to be smaller than 3*3 mm<2>, soaking the filter paper in deionized water, adding ultrasonic treatment liquid for ultrasonic treatment to prepare filter paper pulp, conducting freeze-drying, putting in a polymer solution to be magnetically stirred, putting the materials in a polymer solution with opposite charges to be magnetically stirred, putting the filter paper in the two polymer solutions alternately 10-30 times, adjusting the adsorption amount of high-molecular polymer so as to adjust the aperture, and conducting drying to form the filter paper with adjustable aperture of 50-300 nm. The filter paper is rich in raw material, simple in preparation method, easy to produce, low in cost and good in product quality, is an innovation of filter paper and has good economic and social benefits.

Description

technical field [0001] The invention relates to filter paper, in particular to a method for preparing filter paper with adjustable aperture for ion adsorption. Background technique [0002] Filter paper is a commonly used filter material in industrial production. Due to various ionic pollutants in the air, water vapor and aqueous solution, such as heavy metal ions, cadmium, mercury, copper, lead, nickel ions, etc., such as amino acid residues, sugar amino and other biological Small molecular pollutants, the existing filter paper cannot remove such pollutants, and cannot meet the actual needs of filter paper production. Therefore, improvement and innovation on filter paper is imperative. Contents of the invention [0003] In view of the above situation, in order to overcome the deficiencies of the prior art, the object of the present invention is to provide a preparation method of filter paper with adjustable pore size for ion adsorption, which can effectively solve the pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/08D21H17/53D21H17/35B01D39/18B01J20/26B01J20/30B01J20/28
CPCB01D39/18B01J20/264B01J20/28033D21H17/35D21H17/53D21H27/08
Inventor 刘洁李欣宇
Owner 江西中竹生物质科技有限公司