Preparation method of air filtering material

A technology of air filter material and polyester fiber, which is applied in the field of preparation of air filter material, can solve the problems of poor adsorption capacity of pollution particles, reduced filtering effect, poor filtering effect, etc., achieve good hydrophobicity, improve adsorption capacity, and improve The effect of filtering ability

Active Publication Date: 2019-07-12
山东奥博环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented modification involves modifying the properties of Polyethylene terephthalate (PET) fiber surfaces through chemical treatment or acidification techniques that weaken its molecular chains without damaging it's strength characteristics such as tensile strength. These modifications improve their overall quality for use as filters due to increased water repelling capabilities caused by reduced friction forces among them. Additionally, adding an active charcoal powder can further enhance these improvements compared to other materials used alone. Overall, this technology allows PEFTs to effectively remove harmful substances like pollen grains while maintaining high filtration efficiency.

Problems solved by technology

Technological Problem: Current methods involve adding chemical agents or biomolecules that help reduce harm caused by various factors like dust (a form of particle) being trapped inside filters due to their high surface area compared with other components such as fiber bundles themselves. Additionally, current techniques often require long periods before effective removal of suspended solids occurs because these small objects may be difficult to dispose off when collected overnight without causing damage if left behind indoors where water vapor could cause condensations leading to clogging issues.

Method used

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  • Preparation method of air filtering material
  • Preparation method of air filtering material
  • Preparation method of air filtering material

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A preparation method of air filter material, comprising the steps of:

[0036] Step 1: Pretreatment of fibers, configure sodium hydroxide solution with a concentration of 10%-15%, heat the sodium hydroxide solution to 45-55°C, add polyester fiber to it and soak for 15-30min, then separate solid and liquid, pass Rinse with deionized water at 45-55°C and dry to obtain preliminary treated polyester fibers;

[0037]Step 2: Preparation of hydrophobic fibers, take absolute ethanol and heat it to 50-60°C, add acrylate to the hot absolute ethanol solution and stir to dissolve to obtain an alcohol solution of acrylate, wherein the amount of acrylate added in absolute ethanol 1-3g / L, the polyester fiber is added to the alcohol solution of acrylate and then poured into the advection tank for reaction. After irradiating with high-energy rays for 15-25 minutes, the solid-liquid separation is carried out. After the polyester fiber is naturally cooled, it is rinsed with deionized water

Embodiment 2

[0048] A preparation method of air filter material, comprising the steps of:

[0049] Step 1: Pretreatment of fibers, configure sodium hydroxide solution with a concentration of 10%-15%, heat the sodium hydroxide solution to 45-55°C, add polyester fiber to it and soak for 15-30min, then separate solid and liquid, pass Rinse with deionized water at 45-55°C and dry to obtain preliminary treated polyester fibers;

[0050] Step 2: Preparation of hydrophobic fibers, take absolute ethanol and heat it to 50-60°C, add acrylate to the hot absolute ethanol solution and stir to dissolve to obtain an alcohol solution of acrylate, wherein the amount of acrylate added in absolute ethanol 1-3g / L, the polyester fiber is added to the alcohol solution of acrylate and then poured into the advection tank for reaction. After irradiating with high-energy rays for 15-25 minutes, the solid-liquid separation is carried out. After the polyester fiber is naturally cooled, it is rinsed with deionized wate

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PUM

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Abstract

The invention discloses a preparation method of an air filtering material. The method comprises the following steps: pretreatment of fiber, preparation of hydrophobic fiber, preparation of modified attapulgite, and preparation and spraying of spraying materials. The method has the advantages that the surface of polyester fiber is modified through an alkaline solution and acrylic ester, the structure of the polyester fiber is destroyed, the cohesive force among the polyester fiber is reduced, and the surface roughness and specific surface area of the polyester fiber are improved, so that the adsorption capacity of the polyester fiber is enhanced, meanwhile the polyester fiber has excellent hydrophobic capacity, the polyester fiber is prevented from absorbing moisture and sticking together,and the filtering capacity of modified polyester fiber is enhanced; the method further combines activated carbon and attapulgite, the characteristic that the adsorption property of activated carbon ishigher than that of attapulgite is utilized, and the situation that a large quantity of activated carbon particles are in contact with one another to form a conducting loop to reduce the electrostatic adsorption capacity of the polyester fiber is further avoided, so that the adsorption capacity to particulate pollutant and peculiar smell in the air by the polyester fiber is improved.

Description

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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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Owner 山东奥博环保科技有限公司
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