Air filter paper and preparation method thereof

An air filter paper and paper fiber technology, applied in the field of nanomaterials, can solve the problems of small membrane area, harsh conditions, unfavorable industrialization promotion, etc., and achieve the effects of low cost, strong adhesion, and no pollution.

Active Publication Date: 2015-05-13
KUNMING NATAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Vapor phase growth method (for example patent CN 102600667 A, CN 103446804 A and open document Science of the Total Environment 409 (2011) 4132-4138) is to directly grow carbo...

Method used

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  • Air filter paper and preparation method thereof
  • Air filter paper and preparation method thereof
  • Air filter paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of preparation method of air filter paper of the present embodiment, comprises the steps:

[0044] (1) Preparation of bottom paper

[0045] After mixing polyester fiber, glass fiber, and cellulose fiber in a ratio of 3:4:3, add water and lightly beat to obtain a pulp suspension; then add water to dilute the bottom fiber suspension to a mass concentration of 0.1%, and then mix the bottom fiber The suspension is sent to the forming machine for molding, and the formed wet paper is obtained by suction; then polyacrylamide adhesive (the amount of sizing is 0.1%) is applied, and the wet paper for sizing is sucked and dried by infrared to obtain the bottom paper ;

[0046] (2) Preparation of carbon nanomaterial dispersion mixture

[0047] After mixing polyester fibers and glass fibers in a ratio of 4:1, add water to beat to obtain a pulp suspension, dilute the suspension to a mass concentration of 0.1%, and obtain a surface fiber suspension; take single-walled carbon ...

Embodiment 2

[0053] A kind of preparation method of air filter paper of the present embodiment, comprises the steps:

[0054] (1) Preparation of bottom paper

[0055] After mixing polyester fiber and glass fiber at a ratio of 1:1, add water to beat to obtain a pulp suspension; then add water to dilute to a mass concentration of 0.01% to obtain a bottom fiber suspension, and then send the diluted suspension to the former Molding, suction to obtain molding wet paper; then apply pure polyethylene adhesive (the amount of sizing is 0.5%), suck and sizing the wet paper, and then use infrared drying to obtain the bottom paper;

[0056] (2) Preparation of carbon nanomaterial dispersion mixture

[0057] After mixing polyester fibers and glass fibers in a ratio of 2:1, add water to beat to obtain a pulp suspension, dilute the suspension to a mass concentration of 0.2%, and obtain a surface fiber suspension; take carbon nanofibers with an average diameter of 200nm and add them to the mass The conce...

Embodiment 3

[0064] A kind of preparation method of air filter paper of the present embodiment, comprises the steps:

[0065] (1) Preparation of bottom paper

[0066] After mixing glass fiber, tencel fiber and polyvinyl alcohol in a ratio of 8:1:1, add water to make pulp to obtain a pulp suspension; then add water to dilute to a mass concentration of 0.3% to obtain a bottom fiber suspension, and then dilute the diluted The suspension is sent to the forming machine for molding, and the formed wet paper is obtained by suction; then polyacrylamide adhesive (the sizing amount is 0.1%) is applied, and the bottom paper is obtained by infrared drying after suction and sizing of the wet paper;

[0067] (2) Preparation of carbon nanomaterial dispersion mixture

[0068] After mixing aramid fibers and glass fibers in a ratio of 1:1, add water and beating to obtain a pulp suspension, dilute the suspension to a mass concentration of 1%, and obtain a surface fiber suspension with a maximum diameter of ...

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Abstract

The invention discloses air filter paper and a preparation method thereof. The preparation method includes the following steps: (1), preparing a piece of bottom paper; (2), preparing carbon nanomaterial dispersion mixed liquid; (3), arranging the bottom paper on a former, conveying the carbon nanomaterial dispersion mixed liquid to the former, enabling the carbon nanomaterial dispersion mixed liquid to be filtered and formed on the bottom paper, then sizing and drying to obtain the air filter paper. According to the invention, a simple filtering method is adopted to directly load the carbon nanomaterial on the inner fiber of a filtering medium, the preparation technology is simple, the cost is low, the pollution is avoided, and the large-scale production and application of the carbon nanomaterial in the air filtering field can be realized; the prepared air filter paper is high in filtering efficiency, low in filtering resistance, not only can filter particulate pollutants, but also can remove chemical pollutants and virus in the air.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to an air filter paper and a preparation method thereof. Background technique [0002] Small particles in the air can deposit in the lungs and even the blood circulation system of the human body, causing respiratory diseases or thrombus; in addition, due to the large specific surface area of ​​small particles, they can absorb a large amount of toxic substances such as organic gases, viruses, bacteria, etc., further harming the human body. Health is a threat. With the development of society and the popularization of health knowledge, people pay more and more attention to the harm of fine particle pollution in the air. In recent years, air filtration products have gradually become a necessity of life. The requirements have also been greatly increased. [0003] The smaller the fiber diameter of the filter material, the smaller the particle size for removing particles in the air...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H17/00D21H19/24D21H19/20D21H19/30B32B29/00B32B27/06
CPCB32B27/06B32B29/00D21H17/00D21H19/20D21H19/24D21H19/30D21H27/08
Inventor 肖辉胡庭维刘铸吴立群庄留莹陈东平
Owner KUNMING NATAI TECH CO LTD
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