Preparation method for polyphenylene sulfide fiber filter material resisting instant high-temperature oxidization

A polyphenylene sulfide fiber, high-temperature oxidation technology, applied in chemical instruments and methods, separation methods, fiber types, etc., can solve the problems of poor oxidation resistance and water and oil repellency, and achieve the effect of prolonging the service life

Active Publication Date: 2012-08-15
江苏东方滤袋股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In order to solve the defects of poor oxidation resistance and water and oil repellency in the prior art of polyphenylene sulfide fiber filter material, the purpose of the present invention is to provide a preparation of polyphenylene sulfide fiber filter material resistant to instantaneous high temperature oxidation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The green body of the polyphenylene sulfide fiber filter material strengthened by spunlace is sprayed and suctioned to remove dust, washed, degreased and dried, then pad-rolled with the instantaneous high-temperature oxidation-resistant finishing solution, and then pre-baked and baked. It is made into a polyphenylene sulfide fiber filter material resistant to instantaneous high temperature oxidation. The specific process parameters are: (1) Preparation of filter body: use polyphenylene sulfide fiber to make a surface density of 190g / m 2 Upper and lower fiber layers, with a surface density of 120g / m 2 The middle layer of the polyphenylene sulfide yarn woven base cloth forms the green body of the polyphenylene sulfide fiber filter material, and its surface density is 500g / m 2, the thickness is 2.3mm, the longitudinal breaking strength is 1198N, the longitudinal breaking elongation is 18%, the transverse breaking strength is 1226N, the transverse breaking elongation is 29...

Embodiment 2

[0053] The green body of the polyphenylene sulfide fiber filter material reinforced by acupuncture and spunlace successively is sprayed and suctioned to remove dust, washed and degreased and dried, then pad-rolled with the instantaneous high-temperature oxidation-resistant finishing solution, and then pre-baked and baked. The polyphenylene sulfide fiber filter material resistant to instantaneous high temperature oxidation is made by drying process. The specific process parameters are: (1) Preparation of the filter body: the surface density is 210g / m3 made of polyphenylene sulfide fiber 2 Upper and lower fiber layers, with a surface density of 130g / m 2 The middle layer of the polyphenylene sulfide yarn woven base cloth forms the green body of the polyphenylene sulfide fiber filter material, and its surface density is 550g / m 2 , the thickness is 2.6mm, the longitudinal breaking strength is 1296N, the longitudinal breaking elongation is 24%, the transverse breaking strength is 1...

Embodiment 3

[0055] The green body of the polyphenylene sulfide fiber filter material reinforced by needle punching is made by spraying, suctioning, dedusting, washing, degreasing and drying, then padding the instantaneous high-temperature oxidation-resistant finishing solution, and then pre-baking and baking processes. Polyphenylene sulfide fiber filter material resistant to instantaneous high temperature oxidation. The specific process parameters are: (1) Preparation of filter body: use polyphenylene sulfide fiber to make an area density of 230g / m 2 Upper and lower fiber layers, with a surface density of 140g / m 2 The middle layer of the polyphenylene sulfide yarn woven base cloth forms the green body of the polyphenylene sulfide fiber filter material, and its surface density is 600g / m 2 , the thickness is 2.9mm, the longitudinal breaking strength is 1376N, the longitudinal breaking elongation is 30%, the transverse breaking strength is 1498N, the transverse breaking elongation is 39%, a...

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Abstract

The invention relates to a preparation method for polyphenylene sulfide fiber filter material resisting instant high-temperature oxidization. The preparation method is characterized in that a three-layer polyphenylene sulfide fiber structure made by non-weaving technology is used as a filtering material blank, is in padding by instant high-temperature oxidization resistant finishing liquor mainlyconsisting of polytetrafluoroethylene emulsion and epoxy phenolic resin, and then is in low-temperature antimigrant preliminary drying and high-temperature crosslinking curing, so that a membrane structure uniformly distributed with polytetrafluoroethylene particles in a scattered manner is completely wrapped on the surfaces of fibers of the filtering material, oxygen is isolated from the fibers,breaking strength retention rate of the prepared filtering material at the high instant working temperature ranges from 98% to 110%, both water repellency grade and oil repellency grade are remarkably increased, the filtering material is not easy to be damaged, easy to clean and free of being caked, burning of a filtering bag is prevented, differential pressure of a dust removal system is low, the service life of the filtering bag is prolonged, and the filtering bag can be widely used for high-temperature smoke dust removal filtering for iron and steel, power generation, cement, coal-fired boilers and the like. In addition, existing production equipment can be directly used in the method, a process is simple, and production cost is low.

Description

technical field [0001] The present invention relates to a preparation method of a polyphenylene sulfide fiber filter material, in particular to a preparation method of a polyphenylene sulfide fiber filter material resistant to instantaneous high temperature oxidation. The performance of water and oil repellency is significantly improved, so that the filter material is not easy to be damaged, easy to clean dust, no bag sticking, no hardening, and the pressure difference of the dust removal system is small, which can be widely used in high temperature flue gas dust removal of steel, power generation, cement, coal-fired boilers, etc. filter. Background technique [0002] The bag filter is one of the environmental protection equipment for high-temperature flue gas purification and filtration, and the filter bag is the core component of the bag filter, and the filter material is the main raw material for the filter bag. At present, the commonly used high-temperature resistant fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/256D06M15/55D06M15/263D06M13/513D06M15/333D06M13/224D06M15/643D06C7/00B01D39/16B32B27/12D06M101/30
Inventor 吴海波张旭东金平良殷保璞王洪王荣武黄健华张楠李兵涛
Owner 江苏东方滤袋股份有限公司
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