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Air filter material as well as preparation method and application of air filter material

An air filtration material and substrate technology, applied in filtration and separation, separation methods, dispersed particle filtration, etc., can solve the problems of high resistance and high energy consumption, and achieve the effect of reducing resistance, stable growth process, and good purification effect.

Active Publication Date: 2015-11-25
C CLOUD FILTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the interception mechanism of pure physical filtration, glass fiber filter material and PTFE membrane filter material have high resistance and high energy consumption during use

Method used

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  • Air filter material as well as preparation method and application of air filter material
  • Air filter material as well as preparation method and application of air filter material
  • Air filter material as well as preparation method and application of air filter material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Prepare the air filter material, comprising the following steps:

[0035] 1) Preparation of crystal nuclei: Surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and an lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface has not been modified by a coupling agent. The oil hemisphere is a part of nano tourmaline whose surface is modified by a coupling agent, wherein the coupling agent is trimethoxysiloxane, and the particle size of the crystal nucleus is 50nm;

[0036] 2) Granulation: Blend the crystal nuclei obtained in step 1) with the polypropylene melt-blown special material and then melt-extrude and granulate to obtain intermediate particles doped with crystal nuclei; wherein, the melt-extrusion temperature of the intermediate particles is 200°C ; The weight of the crystal nucleus accounts for 0.5% of the total weight of the crystal nucleus and the pol...

Embodiment 2

[0041] Prepare the air filter material, comprising the following steps:

[0042] 1) Preparation of crystal nuclei: Surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and an lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface has not been modified by a coupling agent. The oil hemisphere is a part of nano tourmaline whose surface is modified by a coupling agent; wherein, the coupling agent is a mixture of triethoxysiloxane and titanate coupling agent; the particle size of the crystal nucleus is 150nm;

[0043] 2) Granulation: blend the crystal nuclei obtained in step 1) with the polypropylene melt-blown special material, and then melt-extrude and granulate to obtain intermediate particles doped with crystal nuclei; wherein, the melt-extrusion temperature of the intermediate particles is 250°C ; The weight of the crystal nucleus accounts for 0.3% of the total we...

Embodiment 3

[0048] Prepare the air filter material, comprising the following steps:

[0049] 1) Preparation of crystal nuclei: Surface treatment of nano tourmaline with a coupling agent to obtain a crystal nucleus composed of a hydrophilic hemisphere and an lipophilic hemisphere. The hydrophilic hemisphere is the part of the nano tourmaline whose surface has not been modified by a coupling agent. The oil hemisphere is a part of nano tourmaline whose surface is modified by a coupling agent; wherein, the coupling agent is a titanate coupling agent, and the particle size of the crystal nucleus is 200nm;

[0050] 2) Granulation: Blend the crystal nuclei obtained in step 1) with the polypropylene melt-blown special material and then melt-extrude and granulate to obtain intermediate granules doped with crystal nuclei; wherein, the melt-extrusion temperature of the intermediate granules is 230°C ; The weight of the crystal nucleus accounts for 0.3% of the total weight of the crystal nucleus and ...

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Abstract

The invention discloses an air filter material. The air filter material comprises a base material, a crystal nucleus inlaid on the surface of the base material and a nano zinc oxide crystal rod growing on the crystal nucleus, wherein the base material is melt-blow non-woven cloth, the crystal nucleus is made of nano tourmaline and consists of a hydrophilic hemisphere and an oleophylic hemisphere, the oleophylic hemisphere is inlaid into the base material, and the hydrophilic hemisphere is exposed on the surface of the base material. The invention also relates to a preparation method and application of the air filter material. According to the invention, the air filter material has the advantages of low resistance, high filter efficiency, good purifying effect and good market prospect.

Description

technical field [0001] The invention relates to a filter material, in particular to an air filter material and its preparation method and application. Background technique [0002] At present, there are mainly three kinds of materials used for air filtration on the market: chemical fiber composite filter material, PTFE membrane filter material and glass fiber filter material. Due to the interception mechanism of pure physical filtration, glass fiber filter material and PTFE membrane filter material have high resistance and high energy consumption during use. The filtration mechanism of chemical fiber composite filter material includes both physical filtration and electrostatic adsorption, with low resistance and low energy consumption. Taking the interception efficiency of 0.3um particles as an example, at a flow rate of 32L / min, the initial resistance of the PTFE-coated filter material with a filtration efficiency of 99.97% is about 250Pa, and the initial resistance of the...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/00
Inventor 张建朋罗丹梁振义李亚情徐哲
Owner C CLOUD FILTER
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