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A kind of preparation method of mesoporous ionic adsorption non-woven fabric

A non-woven, ionic technology, applied in the field of preparation of mesoporous ionic adsorption non-woven fabrics, can solve the problems of affecting the filtration capacity of non-woven fabrics, the adsorption capacity of activated carbon, increasing the filtration resistance of non-woven fabrics, blocking the voids of activated carbon, etc. Achieve the effect of improving production value, pollution-free ecological environment, and strong adsorption persistence.

Inactive Publication Date: 2016-06-29
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

Although the patent puts the activated carbon layer between the non-woven fabric layers, it is connected by hot-melt method, which has the disadvantages of low adsorption capacity and unsustainable adsorption. In addition, high temperature will melt part of the polyolefin to increase the filter resistance of the non-woven fabric. , to block the gaps of activated carbon, thereby affecting the filtration capacity of non-woven fabrics and the adsorption capacity of activated carbon, and my country's activated carbon is mainly derived from forest processing, the processing technology is complicated, the energy consumption is high, the environmental pollution is large, and it is not conducive to widespread use, so it needs to be widely used. further improvement

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 example Construction

[0041] A kind of preparation method of mesoporous ionic type adsorption non-woven fabric, described method is carried out according to the following steps,

[0042] aIonic modification of porous calcium silicate powder

[0043] The average particle size is 1-25μm, the pore size is 3-200nm, and the bulk density is 0.2-0.4g / cm 3 The porous calcium silicate powder is soaked in acetic acid aqueous solution or adipic acid aqueous solution or citric acid aqueous solution or butane tetracarboxylic acid with a mass fraction of 1-3%, and the soaking temperature is 45-85°C , the mass fraction of porous calcium silicate powder is 0.5-2%, take it out after soaking for 1-3h and put it in a vacuum drying oven, under the condition of relative vacuum degree of -0.08~-0.098Mpa and temperature of 150°C After vacuum drying for 3 hours, ion-modified porous calcium silicate powder was obtained;

[0044] Preparation of b ion-modified porous calcium silicate powder dispersion solution

[0045] Ac...

Embodiment 1

[0056] aIonic modification of porous calcium silicate powder

[0057] The average particle size is 1μm, the pore size is 3nm, and the bulk density is 0.2g / cm 3 Put the porous calcium silicate powder into the acetic acid aqueous solution with a mass fraction of 1%, the soaking temperature is 45°C, the mass fraction of the porous calcium silicate powder is 0.5%, take it out after soaking for 1h and put it in a vacuum drying oven , the ion-modified porous calcium silicate powder was obtained after vacuum drying for 3 hours at a relative vacuum degree of -0.08Mpa and a temperature of 150°C;

[0058] Preparation of b ion-modified porous calcium silicate powder dispersion solution

[0059] According to the following mass percentage,

[0060] Deionized water 80%

[0061] Ionic modified porous calcium silicate powder 15%

[0062] Polyvinyl alcohol 5%

[0063] Put the ion-modified porous calcium silicate powder obtained in step a into deionized water with a conductivity of 16MΩ·cm...

Embodiment 2

[0069] aIonic modification of porous calcium silicate powder

[0070] The average particle size is 8μm, the pore size is 50nm, and the bulk density is 0.3g / cm 3 The porous calcium silicate powder is soaked in an aqueous solution of adipic acid with a mass fraction of 2%, the soaking temperature is 50°C, and the mass fraction of the porous calcium silicate powder is 1%. After soaking for 2 hours, take it out and put it in In the vacuum drying oven, the ion-modified porous calcium silicate powder was obtained after vacuum drying for 3 hours under the condition that the relative vacuum degree was -0.09Mpa and the temperature was 150°C;

[0071] Preparation of b ion-modified porous calcium silicate powder dispersion solution

[0072] According to the following mass percentage,

[0073] Deionized water 99%

[0074] Ion-modified porous calcium silicate powder 0.5%

[0075] Polyvinyl alcohol 0.5%

[0076] Put the ion-modified porous calcium silicate powder obtained in step a int...

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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Abstract

The invention relates to a preparation method of mesoporous ion adsorption non-woven fabric, and belongs to the technical field of textile materials. According to the preparation method, the mesoporous ion adsorption non-woven fabric is prepared through ion modification of porous calcium silicate powder, preparation of an ion-modified porous calcium silicate powder dispersion solution, padding of polyolefin non-woven fabric and ionic adsorption and activation of padded non-woven fabric. The mesoporous ion adsorption non-woven fabric prepared by the method has excellent performance such as high adsorption efficiency, high adsorption capacity, high adsorption persistence and low filter resistance on various harmful gases of formaldehyde, methylbenzene, xylene, sulfur dioxide, hydrogen sulfide and the like. The preparation method is simple in processing equipment, the raw materials are widely available, the cost is relatively low, and the preparation method is free of pollution to an ecological environment and has great application prospects.

Description

technical field [0001] The invention relates to a method for preparing a mesoporous ion-type adsorption non-woven fabric, which belongs to the technical field of textile materials. Background technique [0002] With the continuous development of science and technology and the gradual improvement of my country's modern industry, the development and utilization of various chemicals have brought great convenience to people's lives. At the same time, due to the production of chemicals, a large number of substances harmful to the environment and human body have become a problem that people have to face. At present, harmful gases in the air mainly come from industrial combustion, automobile exhaust, production and living emissions, etc., which produce a large amount of harmful gases such as formaldehyde, toluene, xylene, hydrogen sulfide, and sulfur dioxide. In daily life, people will inevitably inhale these harmful gases, such as formaldehyde and other harmful gases in newly reno...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30B01D53/02D06M11/79D06M15/333D06M101/20
CPCB01D53/02B01J20/26B01J20/28083B01J20/30B01J2220/445D06M11/79D06M15/333D06M2101/20
Inventor 刘欣徐卫林王栋陈建平宋宝祥曹根阳唐运容
Owner WUHAN TEXTILE UNIV
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