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Surface treating agent for glass fiber filter cloth and preparation method of surface treating agent

A surface treatment agent and glass fiber technology, applied in fiber treatment, textiles and papermaking, etc., can solve the problems of poor corrosion resistance to strong acids, short service life, etc., and achieve the effect of improving bonding ability and avoiding clogging

Active Publication Date: 2015-05-27
SICHUAN FIBERGLASS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, existing filter materials are mainly used in fields such as cement plants, thermal power plants and waste incineration. It can only resist the corrosion of general concentration of acid and alkali, but cannot resist the corrosion of strong acid substances such as concentrated sulfuric acid, concentrated hydrochloric acid, hydrofluoric acid, etc., and has the defects of poor resistance to strong acid corrosion and short service life

Method used

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  • Surface treating agent for glass fiber filter cloth and preparation method of surface treating agent
  • Surface treating agent for glass fiber filter cloth and preparation method of surface treating agent
  • Surface treating agent for glass fiber filter cloth and preparation method of surface treating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A surface treatment agent for glass fiber filter cloth, comprising the following components by mass percentage:

[0024] Water and oil repellent 1%

[0025] Softener 2%

[0026] Inorganic pigment 0.1%

[0027] Fluorocarbon Surfactant 0.01%

[0028] Acid proof binder 2%

[0029] PTFE dispersion 10%

[0030] Demineralized water balance.

[0031] In this example, the water-repellent and oil-repellent agent is a commercially available brand of ionic fluorine-containing water-repellent and oil-repellent agent, the binder is a polyurethane binder, and the softener is a high-temperature-resistant silicone softener. agent, the inorganic pigment is a commercially available conventional inorganic pigment, the fluorocarbon surfactant is a commercially available conventional fluorocarbon surfactant, and the PTFE dispersion is a polytetrafluoroethylene dispersion.

[0032] A preparation method of a surface treatment agent, after preparing materials according to the above ratio...

Embodiment 2

[0036] A surface treatment agent for glass fiber filter cloth, comprising the following components by mass percentage:

[0037] Water and oil repellent 2%

[0038] Softener 1%

[0039] Inorganic pigment 0.4%

[0040] Fluorocarbon Surfactant 0.1%

[0041] Acid proof binder 3%

[0042] PTFE dispersion 2%

[0043] Demineralized water balance.

[0044] A preparation method of a surface treatment agent, after preparing the materials according to the above ratio, first disperse the inorganic pigment into demineralized water under the stirring state of 2900 rpm to obtain the mixed solution, and then sequentially add the mixed liquid under the stirring state of 300 rpm to Add fluorocarbon surfactant, high-temperature softener, water and oil repellent, acid-proof binder and PTFE dispersion into the mixed liquid, and keep stirring until it turns white to obtain the surface treatment agent.

[0045] Adopt the glass fiber filter cloth after the treatment of the present invention, it...

Embodiment 3

[0048] A surface treatment agent for glass fiber filter cloth, comprising the following components by mass percentage:

[0049] Water and oil repellent 5%

[0050] Softener 1.5%

[0051] Inorganic pigment 0.3%

[0052] Fluorocarbon Surfactant 0.07%

[0053] Acid proof binder 5%

[0054] PTFE dispersion 7%

[0055] Demineralized water balance.

[0056] A preparation method of a surface treatment agent, after preparing materials according to the above ratio, first disperse the inorganic pigment into demineralized water under the stirring state of 3000 rpm to obtain the mixed solution, and then sequentially add the mixed liquid under the stirring state of 300 rpm Add fluorocarbon surfactant, high-temperature softener, water and oil repellent, acid-proof binder and PTFE dispersion into the mixed liquid, and keep stirring until white, and then the surface treatment agent is obtained.

[0057] Adopt the glass fiber filter cloth after the treatment of the present invention, its o...

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Abstract

The invention discloses a surface treating agent for glass fiber filter cloth. The surface treating agent comprises the following components in percentage by mass: 1-5% of a water-repellent and oil-resistant agent, 0.5-2% of a softening agent, 0.1-0.5% of inorganic pigment, 0.01-0.1% of a fluorocarbon surfactant, 2-5% of an acid-resistant adhesive, 2-10% of PTFE dispersing liquid and the balance of softened water. By using the surface treating agent, not only can the glass fiber filter cloth resist to the corrosion of strong-acid substances such as concentrated sulfuric acid, concentrated hydrochloric acid and hydrofluoric acid, but also the rigid strength, high-temperature resistance and filtering effect of the glass fiber filter cloth can be improved.

Description

technical field [0001] The invention relates to glass fiber filter cloth, in particular to a surface treatment agent for glass fiber filter cloth and a preparation method thereof. Background technique [0002] Glass fiber filter material is widely used because of its high strength, stable size, high temperature resistance and high filtration efficiency, but glass fiber also has obvious disadvantages, that is, the fiber is brittle, not resistant to folding, not wear-resistant, and easily corroded by acid , These shortcomings have seriously affected the service life of the glass fiber filter material. [0003] In the prior art, surface treatment agents are usually used to improve the overall performance of the glass fiber filter cloth and prolong the service life of the filter cloth, such as the prior art with the Chinese patent number "201210276805.X" disclosed on November 14, 2012 A surface treatment agent for glass fiber filter cloth and a surface treatment process for gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D06M15/277D06M15/564D06M15/643
Inventor 李军康明杜学勤
Owner SICHUAN FIBERGLASS GRP
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