CN103752087A - Novel high-temperature-resistant anticorrosive composite filter material and preparation method thereof - Google Patents
Novel high-temperature-resistant anticorrosive composite filter material and preparation method thereof Download PDFInfo
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- CN103752087A CN103752087A CN201410013811.5A CN201410013811A CN103752087A CN 103752087 A CN103752087 A CN 103752087A CN 201410013811 A CN201410013811 A CN 201410013811A CN 103752087 A CN103752087 A CN 103752087A
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Abstract
The invention relates to a novel high-temperature-resistant anticorrosive composite filter material and a preparation method thereof. The filter material sequentially comprises a PTFE (polytetrafluoroethylene) immersion treatment layer, a non-woven fabric mesh, a mixed layer consisting of oxygen-enriched silk and basalt fibers, a PTFE immersion treatment layer and a PPS micro-porous film from a windward side. The preparation method comprises the following steps: a, preparing a mixed base fabric from the oxygen-enriched silk and basalt fibers; b, compounding the non-woven fabric mesh and the base fabric through an adhesive; c, enabling the mixture to pass through a PTFE impregnation solution at an impregnation speed of 0.8-1.2/min, and drying; and d, compounding a PPS micro-porous film layer, wherein the oxygen content of the oxygen-enriched silk is 35-55 weight percent. The composite filter material has the characteristics of extremely high tensile strength, high temperature resistance and corrosion resistance, the filtering performance is greatly improved, the filtering efficiency is high, the production cost is low, and the filter material does not deform when meeting the instantaneous temperature of 1500 DEG C and has wide application prospects.
Description
Technical field
The utility model belongs to filtering material field, relates to a kind of composite filter material, is specifically related to anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof.
Background technology
Along with the raising of scientific development and people's environmental consciousness, the purification from industrial dedusting to people's daily breathe air all needs to apply professional filtering material.As in the industrial environments such as waste incineration, cement, power plant, iron and steel, chemical machinery processing, in the flue dust of discharge, not only corrosivity compared with large, fine dust is many, dust specific resistance is large, but also contain the caking property materials such as fine floccule, be very easily attached on filtering material and cause filter clogging, affect service life.Conventional filter material ubiquity is inflammable, dust-proof effect is poor, the shortcoming such as flexible type under high temperature, can not meet the requirement of these special operation condition filtrating smoke dusts.
Carbon fiber not only has the intrinsic intrinsic property of material with carbon element, has again the soft machinability of textile fabric concurrently, is fortifying fibre of new generation.Wherein a kind of as carbon fiber of hyperoxic oxygen enrichment silk, has the characteristics such as intensity is large, high temperature resistant, good corrosion resistance, is suitable for very much filtering material field.
Summary of the invention
The object of the invention is in order to improve defect of the prior art, high-performance composite filter material of a kind of fire-retardant, high temperature resistant, good dustproof effect and preparation method thereof is provided.
The present invention is that the technical scheme that realizes goal of the invention employing is, anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, from windward side, be provided with successively mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form, its preparation method is:
A, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
B, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
C, by composite A with the impregnating speed of 0.8 ~ 1.2m/min by PTFE maceration extract, then it is dried, bake out temperature is 250 ~ 400 ℃, drying time is 30 ~ 50min, this operation repeats twice, obtains composite B;
D, under 380 ~ 450 ℃ of temperature, pressure 4.0 ~ 5.0MPa by high temperature hot pressing technique compound one deck PPS microporous membrane on composite B.
Described oxygen enrichment silk oxygen content is 35 ~ 55wt%.
Described oxygen enrichment silk consists of: polyarylate 65.0-75.0wt%, carbon fiber 25.0-40.0 wt%, potassium permanganate 0.5 ~ 1.2wt%, double thioether 0.1-0.3 wt%, lubricant 0.2 ~ 0.4wt%.
Described PTFE maceration extract consists of: PTFE 47wt%, grease-proof and waterproof agent 10wt%, OP10 1.0wt%, silane coupler 1.5wt%, polyvinyl alcohol 2wt%, ethanol 5wt%, water 33.5wt%.
Consisting of of described binding agent: polyvinyl chloride wt35%, ammonium sulfate 10wt%, ethanol 55wt%.
Described PTFE impregnation process layer thickness is 0.5mm.
Described PPS microporous barrier micro-pore diameter is 1.5 μ m, and porosity reaches 96%.
In described c step, impregnating speed is 1.0m/min, and bake out temperature is 300 ℃, and drying time is 50min.
In described d step, hot pressing temperature is that 400 ℃, pressure are 4.3MPa.
The present invention has following beneficial effect: the use filtering material of oxygen enrichment silk has high temperature resistant, low air resistance, corrosion-resistant energy performance.PTFE impregnate layer has good flame retardant effect and resistance to elevated temperatures.Non-woven fabric net can increase filtering material elasticity and permeability, and cost is low, effective.The binding agent using has strengthened the intensity of filtering material, makes non-woven fabric net and oxygen enrichment silk and basalt fibre make mixed base layer of cloth and combines closely, bonds firmly; Filtering material intensity is large, and the circulation of unit are is large, has improved greatly filter efficiency; The hydrophobicity of filtering material, high temperature resistant and corrosion resistance have been improved simultaneously.PPS microporous membrane can effectively improve tensile strength and filtering accuracy.
The present invention has high tension, the feature such as high temperature resistant, corrosion-resistant, strainability improves greatly, filter efficiency is fast, production cost is low, indeformable at 1500 ℃ of instantaneous temperatures, can be widely used in that the working temperatures such as iron and steel, cement, chemical industry, power plant, smelting, carbon black, incinerator, coke oven, coal-burning boiler, the industry of building the road, lime industry, foundry industry are high, corrosivity is strong, dust content reaches, the filtrating smoke dust industry of the high complexity of filtering accuracy requirement, have broad application prospects.
The specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described
Embodiment 1
Anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, is provided with mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form successively from windward side, its preparation method is:
E, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
F, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
G, by composite A with the impregnating speed of 1.0m/min by PTFE maceration extract, then it is dried, bake out temperature is 300 ℃, drying time is 50min, this operation repeats twice, obtains composite B;
H, under 400 ℃ of temperature, pressure 4.3MPa, by high temperature hot pressing technique compound one deck micro-pore diameter on composite B, be 1.5 μ m, porosity reaches 96%PPS microporous membrane.
Wherein: oxygen enrichment silk consists of: polyarylate 70.0wt%, carbon fiber 28.5wt%, potassium permanganate 1.0wt%, double thioether 0.2 wt%, lubricant 0.3wt%.PTFE maceration extract consists of: PTFE 47wt%, grease-proof and waterproof agent 10wt%, OP10 1.0wt%, silane coupler 1.5wt%, polyvinyl alcohol 2wt%, ethanol 5wt%, water 33.5wt%.Consisting of of binding agent: polyvinyl chloride wt35%, ammonium sulfate 10wt%, ethanol 55wt%.
Embodiment 2
Anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, is provided with mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form successively from windward side, its preparation method is:
I, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
J, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
K, by composite A with the impregnating speed of 0.8m/min by PTFE maceration extract, then it is dried, bake out temperature is 250 ℃, drying time is 30min, this operation repeats twice, obtains composite B;
L, under 380 ℃ of temperature, pressure 4.0MPa, by high temperature hot pressing technique compound one deck micro-pore diameter on composite B, be 1.5 μ m, porosity reaches 96%PPS microporous membrane.
Wherein: oxygen enrichment silk consists of: polyarylate 65wt%, carbon fiber 34.2wt%, potassium permanganate 0.5wt%, double thioether 0.1wt%, lubricant 0.2wt%.PTFE maceration extract and binding agent are identical with embodiment 1.
Embodiment 3
Anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, is provided with mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form successively from windward side, its preparation method is:
M, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
N, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
O, by composite A with the impregnating speed of 0.9m/min by PTFE maceration extract, then it is dried, bake out temperature is 380 ℃, drying time is 38min, this operation repeats twice, obtains composite B;
P, under 390 ℃ of temperature, pressure 4.2MPa, by high temperature hot pressing technique compound one deck micro-pore diameter on composite B, be 1.5 μ m, porosity reaches 96%PPS microporous membrane.
Wherein: oxygen enrichment silk consists of: polyarylate 68wt%, carbon fiber 30.7 wt%, potassium permanganate 0.7wt%, double thioether 0.3 wt%, lubricant 0.3wt%.PTFE maceration extract and binding agent are identical with embodiment 1.
Embodiment 4
Anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, is provided with mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form successively from windward side, its preparation method is:
Q, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
R, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
S, by composite A with the impregnating speed of 1.1m/min by PTFE maceration extract, then it is dried, bake out temperature is 400 ℃, drying time is 45min, this operation repeats twice, obtains composite B;
T, under 420 ℃ of temperature, pressure 4.6MPa, by high temperature hot pressing technique compound one deck micro-pore diameter on composite B, be 1.5 μ m, porosity reaches 96%PPS microporous membrane.
Wherein: oxygen enrichment silk consists of: polyarylate 72wt%, carbon fiber 26.5 wt%, potassium permanganate 1.1wt%, double thioether 0.2 wt%, lubricant 0.2wt%.PTFE maceration extract and binding agent are identical with embodiment 1.
Embodiment 5
Anticorrosion composite filter material of a kind of novel fire resistant and preparation method thereof, is provided with mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form successively from windward side, its preparation method is:
U, employing needling process are made mixing base cloth by oxygen enrichment silk and basalt fibre;
V, by binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
W, by composite A with the impregnating speed of 1.2m/min by PTFE maceration extract, then it is dried, bake out temperature is 250 ℃, drying time is 30min, this operation repeats twice, obtains composite B;
X, under 450 ℃ of temperature, pressure 5.0MPa, by high temperature hot pressing technique compound one deck micro-pore diameter on composite B, be 1.5 μ m, porosity reaches 96%PPS microporous membrane.
Wherein: oxygen enrichment silk consists of: polyarylate 73wt%, carbon fiber 25.1 wt%, potassium permanganate 1.2wt%, double thioether 0.3 wt%, lubricant 0.4wt%.PTFE maceration extract and binding agent are identical with embodiment 1.
Claims (9)
1. anticorrosion composite filter material of novel fire resistant and preparation method thereof, it is characterized in that: from windward side, be provided with successively mixed layer, PTFE impregnation process layer, PPS microporous membrane that PTFE impregnation process layer, non-woven fabric net, oxygen enrichment silk and basalt fibre form, its preparation method is:
Adopt needling process that oxygen enrichment silk and basalt fibre are made to mixing base cloth;
By binding agent, non-woven fabric net and base cloth are carried out compoundly, obtain composite A;
By composite A with the impregnating speed of 0.8 ~ 1.2m/min by PTFE maceration extract, then it is dried, bake out temperature is 250 ~ 400 ℃, drying time is 30 ~ 50min, this operation repeats twice, obtains composite B;
Under 380 ~ 450 ℃ of temperature, pressure 4.0 ~ 5.0MPa, pass through high temperature hot pressing technique compound one deck PPS microporous membrane on composite B.
2. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: described oxygen enrichment silk oxygen content is 35 ~ 55wt%.
3. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and 2 and preparation method thereof, is characterized in that: described oxygen enrichment silk consists of: polyarylate 65-75wt%, carbon fiber 25-40 wt%, potassium permanganate 0.5 ~ 1.2wt%, double thioether 0.1-0.3 wt%, lubricant 0.2 ~ 0.4wt%.
4. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, it is characterized in that: described PTFE maceration extract consists of: PTFE 47wt%, grease-proof and waterproof agent 10wt%, OP10 1.0wt%, silane coupler 1.5wt%, polyvinyl alcohol 2wt%, ethanol 5wt%, water 33.5wt%.
5. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: the consisting of of described binding agent: polyvinyl chloride wt35%, ammonium sulfate 10wt%, ethanol 55wt%.
6. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: described PTFE impregnation process layer thickness is 0.5mm.
7. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: described PPS microporous barrier micro-pore diameter is 1.5 μ m, and porosity reaches 96%.
8. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: in described c step, impregnating speed is 1.0m/min, and bake out temperature is 300 ℃, and drying time is 50min.
9. anticorrosion composite filter material of a kind of novel fire resistant according to claim 1 and preparation method thereof, is characterized in that: in described d step, hot pressing temperature is that 400 ℃, pressure are 4.3MP.
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| CN201410013811.5A CN103752087A (en) | 2014-01-13 | 2014-01-13 | Novel high-temperature-resistant anticorrosive composite filter material and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389178A (en) * | 2014-09-19 | 2015-03-04 | 太仓苏纶纺织化纤有限公司 | Modified polyphenylene sulfide/polytetrafluoroethylene layered coating method for basalt fiber filter material |
| CN104999724A (en) * | 2015-07-02 | 2015-10-28 | 河北立格环保科技有限公司 | Carbon fiber oxygen-rich filament needled felt and preparation method and application thereof |
| CN106884325A (en) * | 2017-03-13 | 2017-06-23 | 安徽元琛环保科技股份有限公司 | A kind of method that polyphenylene sulfide filter material surface coats polytetrafluoroethylene (PTFE) |
| CN114749037A (en) * | 2022-04-07 | 2022-07-15 | 上海博格工业用布有限公司 | Air-permeable microporous membrane filter material and preparation method thereof |
| CN115785802A (en) * | 2023-02-09 | 2023-03-14 | 浙江德力装备有限公司 | Thick polyphenylene sulfide coating and preparation method thereof |
-
2014
- 2014-01-13 CN CN201410013811.5A patent/CN103752087A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389178A (en) * | 2014-09-19 | 2015-03-04 | 太仓苏纶纺织化纤有限公司 | Modified polyphenylene sulfide/polytetrafluoroethylene layered coating method for basalt fiber filter material |
| CN104389178B (en) * | 2014-09-19 | 2016-09-07 | 太仓苏纶纺织化纤有限公司 | The modified polyphenyl thioether of a kind of basalt fibre filter material/polytetrafluoroethylene (PTFE) layered coated method |
| CN104999724A (en) * | 2015-07-02 | 2015-10-28 | 河北立格环保科技有限公司 | Carbon fiber oxygen-rich filament needled felt and preparation method and application thereof |
| CN106884325A (en) * | 2017-03-13 | 2017-06-23 | 安徽元琛环保科技股份有限公司 | A kind of method that polyphenylene sulfide filter material surface coats polytetrafluoroethylene (PTFE) |
| CN114749037A (en) * | 2022-04-07 | 2022-07-15 | 上海博格工业用布有限公司 | Air-permeable microporous membrane filter material and preparation method thereof |
| CN115785802A (en) * | 2023-02-09 | 2023-03-14 | 浙江德力装备有限公司 | Thick polyphenylene sulfide coating and preparation method thereof |
| CN115785802B (en) * | 2023-02-09 | 2023-05-05 | 浙江德力装备有限公司 | Thick polyphenylene sulfide coating and its preparing process |
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Application publication date: 20140430 |