High-strength air filter paper and preparation method thereof

An air filter paper, high-strength technology, applied in filter paper, special paper, filter separation, etc., can solve the problems of short filtration time, reduced service life of air filter paper, damp filter material, etc., achieve excellent antibacterial performance, increase flame retardancy effect, the effect of low filter resistance

Inactive Publication Date: 2020-02-14
上海飞特亚空气过滤有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The air filter paper currently used is composed of a layer of traditional plant fiber filter paper. In the process of air filtration, due to structural defects, there are the following disadvantages: due to the thickness limitation of the paper medium, the filtered particles Suspended solids are easy to fill the medium, making its effective filtration time shorter; and the air filter paper currently used in the market is easy to breed fungi in a humid environment, which will cause long-term high-pressure air volume to pass through the protective layer and enter the protected environment. Protected environment, causing environmental pollution
In addition, due to the damp environment, the filter material is easy to be damp and its strength is reduced, which greatly reduces the service life of the air filter paper.

Method used

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  • High-strength air filter paper and preparation method thereof
  • High-strength air filter paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of high-strength air filter paper, comprising the following steps:

[0026] (1) Prepare the base layer paper, mix the glass fiber material with water and fully decompose it in the decomposer, then dilute it with water to a mass concentration of 0.01-2%, to obtain the base layer fiber suspension, and then send the suspension to the former for molding, After suction, the base layer is formed into wet paper;

[0027] (2) preparing a carbon nanomaterial dispersion, adding carbon nanotubes with a diameter of 50 to 100 nm into a surfactant solution with a mass concentration of 0.05 wt%, and ultrasonically dispersing to obtain a carbon nanomaterial dispersion;

[0028] (3) Prepare a mixed diluent, mix the carbon nanomaterial dispersion and the binder, add water to configure the carbon nanomaterial dispersion and the binder in a total mass percentage of 0.5% mixed diluent;

[0029] (4) To obtain air filter paper, soak the molded wet paper obtained in step...

Embodiment 2

[0033] A preparation method of high-strength air filter paper, comprising the following steps:

[0034] (1) To prepare the base paper, mix the carbon fiber material with water and fully disintegrate it in the decomposer, then dilute it with water to a mass concentration of 1% to obtain the base fiber suspension, then send the suspension to the former for molding, after suction Obtain base-layer forming wet paper;

[0035] (2) preparing a carbon nanomaterial dispersion, adding carbon nanofibers with a maximum diameter of 300 nm into a surfactant solution with a mass concentration of 0.05 wt%, and ultrasonically dispersing to obtain a carbon nanomaterial dispersion;

[0036] (3) Prepare a mixed diluent, mix the carbon nanomaterial dispersion and the binder, add water to configure the carbon nanomaterial dispersion and the binder in a total mass percentage of 2% mixed diluent;

[0037] (4) To obtain air filter paper, soak the molded wet paper obtained in step (1) in the mixed d...

Embodiment 3

[0041] A preparation method of high-strength air filter paper, comprising the following steps:

[0042] (1) To prepare the base layer paper, mix the fiber material with water and fully decompose it in the decomposer, then dilute it with water to a mass concentration of 1% to obtain the base layer fiber suspension, then send the suspension to the former for molding, after suction Obtain base-layer forming wet paper;

[0043] (2) Prepare a carbon nanomaterial dispersion, adding carbon nanofibers with a maximum diameter of 300nm into a surfactant solution with a mass concentration of 5wt%, and ultrasonically dispersing to obtain a carbon nanomaterial dispersion;

[0044] (3) Prepare a mixed diluent, mix the carbon nanomaterial dispersion and the binder, add water to configure the carbon nanomaterial dispersion and the binder in a total mass percentage of 5% mixed diluent;

[0045] (4) To obtain air filter paper, soak the molded wet paper obtained in step (1) in the mixed diluen...

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Abstract

The invention relates to a preparation method of a high-strength air filter paper. The method includes: mixing a fiber material with water, conducting full defibering and diluting in a defibering device to obtain a base fiber suspension, and then carrying out molding and suction to obtain base molded wet paper; adding a carbon nano-material into a surfactant solution, and carrying out ultrasonic dispersion to obtain a carbon nano-material dispersion; mixing the carbon nano-material dispersion with an adhesive, and then adding water to prepare a mixed diluent; soaking the molded wet paper in the mixed diluent, maintaining the state for 30-40min, then taking the molded wet paper out, conducting suction and drying, and then carrying out sizing and drying to obtain the air filter paper. The method provided by the invention overcomes the defects in the prior art, is high in filtering efficiency and low in filtering resistance through the air filter paper containing the carbon nano material,can filter particle pollutants, and can also remove chemical pollutants and viruses in air; and under the action of current and high voltage, a porous film is formed on the surface of the raw paper,so that the flame-retardant effect of the air filter paper can be improved.

Description

technical field [0001] The invention relates to the technical field of preparation of air filter paper, in particular to a high-strength air filter paper and a preparation method thereof. Background technique [0002] In addition to oxygen and hydrogen, the air also contains dust, sand, bacteria and other harmful substances. Under certain special environmental requirements, it is necessary to filter the air to achieve the purpose of filtering the air. Air filter paper is one of the commonly used air filter materials. [0003] The air filter paper currently used is composed of a layer of traditional plant fiber filter paper. In the process of air filtration, due to structural defects, there are the following disadvantages: due to the thickness limitation of the paper medium, the filtered particles Suspended solids are easy to fill the medium, making its effective filtration time shorter; and the air filter paper currently used in the market is easy to breed fungi in a humid ...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H17/00D21H21/52D21H21/24D21H21/16D21H13/50D21H13/40D21H13/24D21H17/14D21H17/48D21H17/57D21H17/37D21H27/40B32B29/08B32B29/00B01D46/00
CPCB01D46/00B32B29/005B32B29/08B32B2250/02B32B2250/26D21H13/24D21H13/40D21H13/50D21H17/00D21H17/14D21H17/37D21H17/48D21H17/57D21H17/72D21H21/16D21H21/24D21H21/52D21H27/08D21H27/40
Inventor 陶卫荣瞿薇
Owner 上海飞特亚空气过滤有限公司
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