CN1895759A - Polytef double-film composite filtering materials - Google Patents
Polytef double-film composite filtering materials Download PDFInfo
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- CN1895759A CN1895759A CN 200610085498 CN200610085498A CN1895759A CN 1895759 A CN1895759 A CN 1895759A CN 200610085498 CN200610085498 CN 200610085498 CN 200610085498 A CN200610085498 A CN 200610085498A CN 1895759 A CN1895759 A CN 1895759A
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- ptfe
- double
- polytef
- emulsion
- polytetrafluoroethylene
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Abstract
A dual teflon films combined filtering material is prepared from glass fibers through twisting to become glass fiber yarns, coating teflon film by immersing in teflon solution and baking, weaving to obtain raw fabric, and covering a teflon film on its surface.
Description
Affiliated technical field
The present invention relates to a kind of filtering material, particularly a kind of polytef double-film composite filtering materials.
Background technology
The tail gas of industrial fuel mostly contains a large amount of harmful substances, as sulfide, oxynitrides, cyanide, polycyclic hydrocarbon class etc., just becomes great air pollution source in case enter atmosphere.At present, for the filtration of industrial fuel tail gas, mainly adopt various fibers such as glass, terylene, aramid fiber, polyphenylene sulfide (PPS), P84 or all kinds of base cloth to cover the filtering material of polytetrafluoroethylene (PTFE) film.Under high temperature, water content is big and acid-base value is higher working condition, ubiquity weak point in service life, broken bag rate height, problem that maintenance cost is big.The filtering material that adopts the 100%PTFE fiber weaving is now also arranged, though it has extremely strong stability at elevated temperature and broad industry adaptability, it costs an arm and a leg, 600 yuan/m
2, it is huge to inject capital into.
Summary of the invention
Technical problem to be solved by this invention is, at the deficiencies in the prior art, provides a kind of high temperature resistant and soda acid, wear-resistant, not facile hydrolysis, long service life and cheap polytef double-film composite filtering materials.
The technical solution adopted for the present invention to solve the technical problems is: comprise glass fibre, polytetrafluoroethylene (PTFE); Glass fibre is also twisted with the fingers into glass fiber yarn, and glass fiber yarn is woven into grey cloth behind a polytetrafluoroethylene (PTFE) overlay film, becomes polytef double-film composite filtering materials through secondary polytetrafluoroethylene (PTFE) overlay film again.
A polytetrafluoroethylene (PTFE) overlay film of the present invention is glass fiber yarn normal temperature dipping 10~20 seconds in the polytetrafluoroethylene (PTFE) mixed solvent, through 170~190 ℃ of hyperthermia dryings, obtains the monofilm glass fiber yarn of poly-four vinyl film of surface-coated; The polytetrafluoroethylene (PTFE) mixed solvent comprises ptfe emulsion, hydroxy-silicone-oil emulsion, graphite emulsion and water, and the proportioning (volume ratio) of ptfe emulsion, hydroxy-silicone-oil emulsion, graphite emulsion is:
PTFE emulsion 18.0~20.0%
Hydroxy-silicone-oil emulsion 15.0~17.0%
Graphite emulsion 11.0~12.5%
Above-mentioned polytetrafluoroethylene (PTFE) solvent also can be, and comprises ptfe emulsion, hydroxy-silicone-oil emulsion, polymethylphenyl siloxane fluid and water, and the proportioning of ptfe emulsion, hydroxy-silicone-oil emulsion, polymethylphenyl siloxane fluid (volume ratio) is:
PTFE emulsion 18.5~20.5%
Hydroxy-silicone-oil emulsion 13.5~15.5%
Polymethylphenyl siloxane fluid 12.0~14.0%
Described glass fibre is medium-alkali glass fibre or alkali-free glass fibre.
The thickness of the PTFE film that above-mentioned monofilm glass fiber yarn is coated is advisable with 10~25 μ m.
Secondary polytetrafluoroethylene (PTFE) overlay film of the present invention is to cover poly tetrafluoroethylene with the high temperature laminating machine in the one side of grey cloth, forms the PTFE double-film composite filtering materials.
Above-mentioned grey cloth is repaired machine by the surface breakage of monofilm glass fiber yarn surface poly tetrafluoroethylene in the weaving process is repaired, obtain basic cloth, one side at basic cloth is carried out secondary polytetrafluoroethylene (PTFE) overlay film with the high temperature laminating machine, forms polytef double-film composite filtering materials.
What above-mentioned secondary polytetrafluoroethylene (PTFE) overlay film was adopted is microporous teflon membran.
The present invention is owing to adopt polytef double-film compound, thereby high temperature resistant and soda acid, wear-resistant, not facile hydrolysis, long service life, and cheap, has good economic benefit and social benefit.
The specific embodiment
Below in conjunction with embodiment technical scheme of the present invention is elaborated:
Embodiment 1:
One, with alkali-free glass fibre by doubler twister and twist with the fingers into 80 glass fiber yarns.
Two, glass fiber yarn passes through the coating processor at its surface-coated polytetrafluoroethylene (PTFE) mixed solvent, being about to glass fiber yarn flooded 12 seconds at normal temperatures, promptly in the flux bath of long 3m, flood with the speed of 15m/min, then through 180 ℃ of hyperthermia dryings, making the surface coating thickness of glass fiber yarn is the poly tetrafluoroethylene of 15 μ m, becomes the monofilm glass fiber yarn.
The polytetrafluoroethylene (PTFE) mixed solvent mainly comprises ptfe emulsion, hydroxy-silicone-oil emulsion, graphite emulsion and water, and its concrete proportioning (volume ratio) is: PTFE emulsion 18.5%, hydroxy-silicone-oil emulsion 15.0%, graphite emulsion 12.5%, all the other are water.Because its chemical corrosion resisting property of glass fibre is good, its softening temperature is up to 550~750 ℃, and polytetrafluoroethylene (PTFE) has good decay resistance in addition, except that motlten metal sodium and liquid fluorine, other all chemicals of ability boil also in the chloroazotic acid and do not change, and operating temperature range is-269~250 ℃; Distinctive physical and chemical performances such as that graphite has is high temperature resistant, anticorrosive, anti-thermal shock, intensity are big, good toughness, sae number height, heat conduction; Hydroxy silicon oil, high temperature resistant, antistatic performance is good, can significantly improve the slickness and the seamability energy of terylen line, and fabric is put in order, can make fabric sofetening tall and straight, and smooth good springiness is smooth and plentiful, can give fabric in waterproof simultaneously, refuses the performance of water.Thereby that the monofilm glass fiber yarn has is high temperature resistant, wear-resistant, intensity is big, anticorrosive, weaving property is good, pliability is good, refuse water, grease proofing performance.
Three, the monofilm glass fiber yarn is made into 750 gram/m by common weaving process with shuttleless loom or air-jet loom
2Grey cloth.
Four, grey cloth is repaired the breakage of monofilm glass fiber yarn surface poly tetrafluoroethylene in the weaving process by surface reparation machine, obtains basic cloth.
Five, meet red dog in the filtration of basic cloth and carry out secondary coating polytetrafluoroethyl-ne film with the high temperature laminating machine, the polytetrafluoroethyl-ne film that is adopted is a microporous barrier, thereby forms the PTFE double-film composite filtering materials.Its performance indications are:
Suitable operating temperature≤260 ℃
Alkaline resistance properties (behind the dense NaOH immersion 24h) strength retention 〉=93%
Acid resistance (60%H
2SO
4After soaking 24h) strength retention 〉=93%
30,000 hours service life
Maximum filtering wind speed 1.1m/min
Ultimate strength 〉=4000N/5 * 20cm
Air permeability 2.2-4m
3/ m
2Min
Concentration of emission≤20mg/m
3
Dynamic dust removal efficiency 99.998%
Embodiment two:
1, with medium-alkali glass fibre by doubler twister and twist with the fingers into 45 glass fiber yarns.
2, glass fiber yarn passes through the coating processor at its surface-coated polytetrafluoroethylene (PTFE) mixed solvent, be about to glass fiber yarn and flood 15sec at normal temperatures, promptly in the flux bath of long 3m, flood with the speed of 12m/min, then through 185 ℃ of hyperthermia dryings, making the surface coating thickness of glass fiber yarn is 18 μ m poly tetrafluoroethylenes, becomes the monofilm glass fiber yarn.
The polytetrafluoroethylene (PTFE) mixed solvent mainly comprises ptfe emulsion, hydroxy-silicone-oil emulsion, polymethylphenyl siloxane fluid and water, and its concrete proportioning for (volume ratio) is: PTFE emulsion 19.0%, hydroxy-silicone-oil emulsion 14.8%, polymethylphenyl siloxane fluid 12.0%, all the other are water.Because polymethylphenyl siloxane fluid, lubricity is good, and the sticking coefficient of temperature is little, and volatility is little, and compression ratio is big, and surperficial tension is big, and polymethylphenyl siloxane fluid and other organic resin compatibility are good, ultraviolet-resistant performance uniqueness, working range-70~300 ℃.Thereby the monofilm glass fiber yarn has performance similarly to Example 1.
The monofilm glass fiber yarn is made into 700 gram/m by common weaving process with shuttleless loom or air-jet loom
2Grey cloth.
The filtration of grey cloth is met red dog and is carried out secondary coating PTFE film with the high temperature laminating machine, and the PTFE film that is adopted is a microporous barrier, thereby forms the PTFE double-film composite filtering materials.Its performance indications are: with embodiment 1.
Claims (8)
1, polytef double-film composite filtering materials comprises glass fibre, polytetrafluoroethylene (PTFE); Glass fibre is also twisted with the fingers into glass fiber yarn, and it is characterized in that: glass fiber yarn is woven into grey cloth behind a polytetrafluoroethylene (PTFE) overlay film, becomes polytef double-film composite filtering materials through secondary polytetrafluoroethylene (PTFE) overlay film again.
2, polytef double-film composite filtering materials according to claim 1, it is characterized in that: a described polytetrafluoroethylene (PTFE) overlay film is glass fiber yarn normal temperature dipping 10~20 seconds in the polytetrafluoroethylene (PTFE) mixed solvent, through 170~190 ℃ of hyperthermia dryings, obtain the monofilm glass fiber yarn of poly-four vinyl film of surface-coated; The polytetrafluoroethylene (PTFE) mixed solvent comprises ptfe emulsion, hydroxy-silicone-oil emulsion, graphite emulsion and water, and the proportioning (volume ratio) of ptfe emulsion, hydroxy-silicone-oil emulsion, graphite emulsion is:
PTFE emulsion 18.0~20.0%
Hydroxy-silicone-oil emulsion 15.0~17.0%
Graphite emulsion 11.0~12.5%
3, polytef double-film composite filtering materials according to claim 2, it is characterized in that: above-mentioned polytetrafluoroethylene (PTFE) solvent also can be, comprise ptfe emulsion, hydroxy-silicone-oil emulsion, polymethylphenyl siloxane fluid and water, the proportioning of ptfe emulsion, hydroxy-silicone-oil emulsion, polymethylphenyl siloxane fluid (volume ratio) is:
PTFE emulsion 18.5~20.5%
Hydroxy-silicone-oil emulsion 13.5~15.5%
Polymethylphenyl siloxane fluid 12.0~14.0%
4, polytef double-film composite filtering materials according to claim 1 is characterized in that: described glass fibre is medium-alkali glass fibre or alkali-free glass fibre.
5, according to claim 1 or 2,3 described polytef double-film composite filtering materials, it is characterized in that: the thickness of the poly tetrafluoroethylene that described monofilm glass fiber yarn is coated is advisable with 10~25 μ m.
6, polytef double-film composite filtering materials according to claim 1, it is characterized in that: described secondary polytetrafluoroethylene (PTFE) overlay film is to cover poly tetrafluoroethylene with the high temperature laminating machine in the one side of grey cloth, forms polytef double-film composite filtering materials.
7, polytef double-film composite filtering materials according to claim 1, it is characterized in that: described grey cloth is repaired machine by the surface breakage of monofilm glass fiber yarn surface poly tetrafluoroethylene in the weaving process is repaired, obtain basic cloth, one side at basic cloth is carried out secondary polytetrafluoroethylene (PTFE) overlay film with the high temperature laminating machine, forms polytef double-film composite filtering materials.
8, according to claim 1 or 6,7 described polytef double-film composite filtering materials, it is characterized in that: what described secondary polytetrafluoroethylene (PTFE) overlay film was adopted is microporous teflon membran.
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CN200610085498A CN100586538C (en) | 2006-06-19 | 2006-06-19 | Polytetrafluoroethylene double-film composite filtering materials |
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CN200610085498A CN100586538C (en) | 2006-06-19 | 2006-06-19 | Polytetrafluoroethylene double-film composite filtering materials |
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CN1895759A true CN1895759A (en) | 2007-01-17 |
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Cited By (10)
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CN101879390A (en) * | 2010-06-09 | 2010-11-10 | 宋朋泽 | Heat-resistant composite glass fiber filter material and preparation method thereof |
CN102114722A (en) * | 2009-12-30 | 2011-07-06 | 财团法人纺织产业综合研究所 | Immersion liquid, preparation method thereof and glass fabric manufacturing method employing ame |
CN101397437B (en) * | 2008-07-23 | 2012-03-21 | 厦门三维丝环保股份有限公司 | Coating composition for improving filter material surface and coating formation method thereby |
CN103663470A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Acid leaching device for silicon material |
CN103663467A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Acid leaching device for silicon ore purification |
CN104757719A (en) * | 2015-03-27 | 2015-07-08 | 陕西锦澜科技有限公司 | Anti-static skin fabric and preparation method thereof |
CN105625042A (en) * | 2014-11-04 | 2016-06-01 | 厦门三维丝环保股份有限公司 | High temperature resistant filter cartridge substrate filter material stiffening finishing method |
CN106823561A (en) * | 2017-02-27 | 2017-06-13 | 辽宁鸿盛环境技术集团有限公司 | A kind of inorfil is combined woven filtrate and preparation method with organic fiber |
CN107034686A (en) * | 2017-05-26 | 2017-08-11 | 江苏绿地环保滤材有限公司 | Corrosion-resistant high voltage bearing environmentally friendly filtering material and preparation method thereof |
CN109550313A (en) * | 2018-12-07 | 2019-04-02 | 江苏通盛滤袋有限公司 | A kind of silicone oil processing glass fibre filtrate |
Family Cites Families (5)
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CN1015427B (en) * | 1990-03-01 | 1992-02-12 | 王家骐 | Polytetrafluoroethylene mulch and preparation process therefor |
CN1069537A (en) * | 1991-08-15 | 1993-03-03 | 陈国龙 | High-strength polytetrafluoroethyl-ne welding Compound Fabric, manufacturing, application |
GB2262784B (en) * | 1991-12-24 | 1995-05-10 | T & N Technology Ltd | Bearing material |
CN100402132C (en) * | 2003-06-20 | 2008-07-16 | 上海过滤器厂 | Filter material of tefloncomposite membrane |
CN1331578C (en) * | 2005-10-13 | 2007-08-15 | 中材科技股份有限公司 | High temperature resistant P.T.F.E. coated filter material |
-
2006
- 2006-06-19 CN CN200610085498A patent/CN100586538C/en not_active Expired - Fee Related
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CN101397437B (en) * | 2008-07-23 | 2012-03-21 | 厦门三维丝环保股份有限公司 | Coating composition for improving filter material surface and coating formation method thereby |
CN102114722A (en) * | 2009-12-30 | 2011-07-06 | 财团法人纺织产业综合研究所 | Immersion liquid, preparation method thereof and glass fabric manufacturing method employing ame |
CN102114722B (en) * | 2009-12-30 | 2013-10-09 | 财团法人纺织产业综合研究所 | Immersion liquid, preparation method thereof and glass fabric manufacturing method employing same |
CN101879390A (en) * | 2010-06-09 | 2010-11-10 | 宋朋泽 | Heat-resistant composite glass fiber filter material and preparation method thereof |
CN101879390B (en) * | 2010-06-09 | 2012-10-17 | 宋朋泽 | Heat-resistant composite glass fiber filter material and preparation method thereof |
CN103663467A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Acid leaching device for silicon ore purification |
CN103663470A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Acid leaching device for silicon material |
CN103663467B (en) * | 2013-11-21 | 2016-01-13 | 成都兴能新材料有限公司 | The acidleach device of silicon ore deposit purification |
CN103663470B (en) * | 2013-11-21 | 2016-01-13 | 成都兴能新材料有限公司 | The acidleach device of silicon material |
CN105625042A (en) * | 2014-11-04 | 2016-06-01 | 厦门三维丝环保股份有限公司 | High temperature resistant filter cartridge substrate filter material stiffening finishing method |
CN104757719A (en) * | 2015-03-27 | 2015-07-08 | 陕西锦澜科技有限公司 | Anti-static skin fabric and preparation method thereof |
CN106823561A (en) * | 2017-02-27 | 2017-06-13 | 辽宁鸿盛环境技术集团有限公司 | A kind of inorfil is combined woven filtrate and preparation method with organic fiber |
CN107034686A (en) * | 2017-05-26 | 2017-08-11 | 江苏绿地环保滤材有限公司 | Corrosion-resistant high voltage bearing environmentally friendly filtering material and preparation method thereof |
CN109550313A (en) * | 2018-12-07 | 2019-04-02 | 江苏通盛滤袋有限公司 | A kind of silicone oil processing glass fibre filtrate |
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