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Dust removal filter material finishing liquid, preparation method and application thereof

A technology for finishing liquid and filter material, which is applied in fiber treatment, liquid repellent fiber, fiber type, etc. It can solve the problem of not increasing the filter material's high temperature resistance, oxidation corrosion resistance, acid and alkali corrosion, and post-processing methods that cannot fully satisfy customers. The needs of the filter material, the loss of water resistance of the filter material, etc., to achieve excellent water resistance, anti-condensation paste bag performance, and prolong the service life

Inactive Publication Date: 2017-10-24
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dipping treatment of PTFE finishing solution is treated with PTFE emulsion. After treatment, due to the non-stick characteristics of PTFE, it is difficult to form a continuous film on the surface of the fiber. Oxidation corrosion resistance, acid and alkali corrosion performance have been improved to a certain extent, but the effect is not obvious
The water-repellent and oil-repellent treatment usually uses a fluorine-based water repellent, which can make the filter material have a certain degree of water-repellent and oil-repellent properties. High temperature resistance, oxidation corrosion resistance, acid and alkali corrosion and other properties of the material
[0004] At present, with the improvement of environmental protection standards and the continuous improvement of the performance requirements of the manufacturers for filter bags, these two conventional post-processing methods cannot fully meet the needs of customers.
The fluorine-based water repellent used in the water-repellent and oil-repellent treatment is acidic, and the polytetrafluoroethylene emulsion is alkaline. If the two are used together, the waterproof effect of the filter material will be lost

Method used

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  • Dust removal filter material finishing liquid, preparation method and application thereof
  • Dust removal filter material finishing liquid, preparation method and application thereof
  • Dust removal filter material finishing liquid, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation raw materials and mass fractions of the dust-removing filter material finishing liquid are:

[0028]

[0029] The preparation method of the finishing solution: add polytetrafluoroethylene emulsion, silicone oil emulsion, methyl siloxane, water-based epoxy resin, aminosilane, 2,6-tertiary butyl-4-methylphenol to the batching tank , under normal temperature and pressure for the first time stirring, and then add water, polyoxyethylene sorbitan monostearate and nano TiO 2 and ultrasonic treatment, making the nanoscale TiO 2 The dispersion is uniform, the viscosity of the solution is 190mPa·S, and the pH is adjusted to 7-9 to obtain a finishing solution.

[0030] The application of the above finishing liquid in finishing the dust filter material:

[0031] Dust removal filter material: It is needle felt, and its raw materials are polyphenylene sulfide (PPS) fiber and polytetrafluoroethylene (PTFE) fiber, among which, the proportion of PPS fiber is 50%~80%...

Embodiment 2

[0039] The preparation raw materials and mass fractions of the dust-removing filter material finishing liquid are:

[0040]

[0041]

[0042]Preparation method of finishing solution: polytetrafluoroethylene emulsion, silicone oil emulsion, methyl siloxanes, water-based epoxy resin, vinyl silane, bis(3,5-tertiary butyl-4-hydroxyphenyl) Add thioether to the batching tank, carry out initial stirring under normal temperature and pressure, then add water, polyoxyethylene sorbitan monostearate and nano TiO 2 and ultrasonic treatment, making the nanoscale TiO 2 The dispersion is uniform, the viscosity of the solution is 170mPa·S, and the pH is adjusted to 7-9 to obtain a finishing solution.

[0043] The application of the above finishing liquid in finishing the dust filter material:

[0044] Dust removal filter material: It is needle felt, and its raw materials are polyphenylene sulfide (PPS) fiber and polytetrafluoroethylene (PTFE) fiber, among which, the proportion of PPS f...

Embodiment 3

[0052] The preparation raw materials and mass fractions of the dust-removing filter material finishing liquid are:

[0053]

[0054] The preparation method of the finishing solution: polytetrafluoroethylene emulsion, silicone oil emulsion, methyl siloxanes, water-based epoxy resin, methacryloxysilane, tetrakis [β-(3,5-tertiary butyl -4-Hydroxyphenyl)propionic acid]pentaerythritol ester is added to the batching tank, and the initial stirring is carried out under normal temperature and pressure, and then water, polyoxyethylene sorbitan monostearate and nano-sized TiO are added while stirring. 2 and ultrasonic treatment, making the nanoscale TiO 2 The dispersion is uniform, the viscosity of the solution is 200mPa·S, and the pH is adjusted to 7-9 to obtain a finishing solution.

[0055] The application of the above finishing liquid in finishing the dust filter material:

[0056] Dust removal filter material: It is needle felt, and its raw materials are polyphenylene sulfide (...

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Abstract

The invention discloses a dust removal filter material finishing liquid, which includes, by mass, 10-20% of a polytetrafluoroethylene emulsion, 2-8% of a silicone oil emulsion, 2-8% of an organic silicon waterproofing agent, 0.2-0.4% of an antioxidant, 1-3% of aqueous epoxidized resin, 3-10% of a silane coupling agent, 4% of nano TiO2, 0.5-2% of a non-ionic penetrating agent, and the balanced being water. The invention also discloses a preparation method and an application of the dust removal filter material finishing liquid. A filter material treated with the finishing liquid has excellent waterproofing property and film-forming performance, so that the filter material has anti-oxidizing, anti-corrosion, water-repellent and oil-preventing, anti-static, anti-condensation and anti-bag-sticking performances. Meanwhile, the service life of the filter material is prolonged, and further filter efficiency of the punched felt filter material is increased.

Description

technical field [0001] The invention relates to the technical field of dust removal filter material treatment, and more specifically to a dust removal filter material finishing liquid, its preparation method and application. Background technique [0002] With the rise of bag dust removal in the dust removal industry, the filter bag, as the core component of the bag dust collector, is also increasingly applicable to various complex working conditions. With the increasing development of filter material selection technology, the main problems in the use of filter bags have changed from "broken bags" to "condensation bags". The ammonium bisulfate (ABS) formed by the phenomenon adheres to the surface of the filter bag, so that the pressure difference in the entire dust collector remains high, which increases the cost output of the manufacturer. [0003] In the later stage of filter material production, it needs to be post-treated with finishing solution. At present, most filter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D06M15/643D06M15/55D06M15/53D06M13/328D06M11/46D06M13/152D06M101/30D06M101/22
CPCD06M15/256D06M11/46D06M13/152D06M13/328D06M15/53D06M15/55D06M15/643D06M15/6436D06M2101/22D06M2101/30D06M2200/11D06M2200/12
Inventor 杨东徐辉刘江峰
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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