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Composite filter and manufacturing method thereof

A manufacturing method and technology of composite filter materials, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of short service life, high temperature resistance of filter materials, corrosion resistance and hydrolysis resistance, flexibility, wear resistance, and bending resistance Such problems as poor performance, poor firmness of glass fiber fabric and PTFE, etc.

Inactive Publication Date: 2009-12-02
厦门美达斯环保工业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing schemes mainly include the following types: 1. The glass fiber filter material is directly coated without PTFE (polytetrafluoroethylene) treatment; 2. The glass fiber filter material is treated with PTFE but not coated; 3. The glass fiber filter material is not treated with PTFE 4. Even though the glass fiber filter material has been treated with PTFE, it has not been directly impregnated with PTFE to remove the slurry, self-lubricating agent, sizing agent, grease and other impurities on the glass fiber fabric, and The PTFE solution formula is different, and the sintering process is also different, so that the bond between the glass fiber fabric and PTFE is not strong enough, and the filter material made has high temperature resistance, corrosion resistance, hydrolysis resistance, flexibility, wear resistance, bending resistance, etc. The performance is very poor, and its service life is also very short

Method used

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Embodiment Construction

[0019] A method for manufacturing a composite filter material, which uses a glass fiber fabric woven from a bulky twisted yarn as a base cloth, and treats it in a PTFE treatment agent so that the surface of each yarn in the glass fiber filter cloth is wrapped with a dense layer. Polytetrafluoroethylene (PTFE) protective layer.

[0020] The manufacture method of above-mentioned composite filter material, its step:

[0021] (1) Adjustment of PTFE resin solution:

[0022] Follow the steps below:

[0023] 1) Add solvent with PTFE concentrate to make PTFE resin solution;

[0024] 2) take out the PTFE resin solution of step 1), add solvent and dilute;

[0025] 3) add plasticizer in the PTFE resin dilution solution of step 2), stir;

[0026] 4) Pour the solution of step 3) into the dipping tank, and impregnate the base cloth. Of course, it is also possible to combine the PTFE resin solution on the base cloth by spraying, scraping or coating, rolling, and letting the coating dry. ...

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Abstract

The invention discloses a manufacturing method of composite filter, comprising the steps: firstly, combining PTFE resin solution to glass fiber fabrics; sintering the glass fiber fabrics which are combined with the PTFE resin; coating one compact PTFE (polytetrafluoroethylene) protection layer on the surface of each yarn of the glass fiber filter cloth; and then, coating a PTFE film on the surface of the filter. The high temperature resistance, the corrosion resistance, the hydrolyzation resistance, the flexility, the wear resistance, the breaking resistance, and the like of the manufactured filter are greatly improved, the dust stripping property of the filter is good, and the dust of the filter is easy to clear. Compared with the prior art, the service life of the filters can be prolonged by over one time.

Description

technical field [0001] The invention relates to a filter material for environmental dust removal and filtration, in particular to a composite filter material and a manufacturing method thereof. Background technique [0002] The existing schemes mainly include the following types: 1. The glass fiber filter material is directly coated without PTFE (polytetrafluoroethylene) treatment; 2. The glass fiber filter material is treated with PTFE but not coated; 3. The glass fiber filter material is not treated with PTFE 4. Even though the glass fiber filter material has been treated with PTFE, it has not been directly impregnated with PTFE to remove the slurry, self-lubricating agent, sizing agent, grease and other impurities on the glass fiber fabric, and The PTFE solution formula is different, and the sintering process is also different, so that the bond between the glass fiber fabric and PTFE is not strong enough, and the filter material made has high temperature resistance, corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16
Inventor 洪和平邱新标
Owner 厦门美达斯环保工业有限公司
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