CN1768912A - High temperature resistant P.T.F.E. coated filter material - Google Patents
High temperature resistant P.T.F.E. coated filter material Download PDFInfo
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- CN1768912A CN1768912A CN 200510094768 CN200510094768A CN1768912A CN 1768912 A CN1768912 A CN 1768912A CN 200510094768 CN200510094768 CN 200510094768 CN 200510094768 A CN200510094768 A CN 200510094768A CN 1768912 A CN1768912 A CN 1768912A
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Abstract
The invention relates to a high temperature-resistant polytetrafluoroethylene tectorial filter material, belonging to the improvement on present polytetrafluoroethylene composite filter material, which comprises a glass fiber base cloth and a polytetrafluoroethylene surface film. It is characterized in that: first using after-treatment agent to process the dipping process on the glass fiber base cloth, then processing the high-temperature heat compression on the polytetrafluoroethylene surface film. The invention uses film forming emulsifier, fluorine silane coupling agent and fluoroplymer emulsion to form a film on the glass fiber base cloth, which can improve the effects of anti-soil, oil-proof and preservation, and it can have fusion combination with expanded micro-pore polytetrafluoroethylene film in the condition of high-temperature heat compression, to effectively solve the problem of hard fusion combination between inorganic material of glass fiber and organic inertia material of polytetrafluoroethylene to significantly improve the fastness between them.
Description
Technical field
High temperature resistant polytetrafluoroethylene (PTFE) coated filter material relates to the improvement to existing polytetrafluoroethylene (PTFE) coated filter material.
Background technology
Glass fabric and high molecular weight ptfe film are laminated with filtrate, it is a kind of novel filter material of developing in recent years, it has given full play to inorganic material (glass fibre) and organic material (polytetrafluoroethylene (PTFE)) performance advantage separately, remedy deficiency each other, synergy has produced the good comprehensive effect.
Name is called the Chinese patent (application number is 03129430.8) of " filtering material of polytetrafluoroethylene (PTFE) composite membrane ", disclosed the filtering material of a kind of air filtration industry with polytetrafluoroethylcomposite composite film, it is composited by glass fibre, two kinds of materials of polytetrafluoroethylene (PTFE), wherein glass fibre is a base cloth, polytetrafluoroethylene (PTFE) is a skin covering of the surface, by bonding agent both bondings is formed.Its bonding agent is any one a macromolecular compound in polysulfones, nylon N6, the polyvinylidene fluoride.We find in practice, are not suitable in (more than 190 ℃) under the hot environment long-term use with the gluing coated filter material that forms of above-mentioned macromolecular compound.Because when using in the environment more than 190 ℃, adhesive just begins fusing, the adhesive after the fusing can ooze out from the micropore of film, and the glue that oozes out causes a large amount of dusts to be bonded on the surface of filtrate, be difficult to remove, and can be poly-more many more.At this moment melt owing to adhesive, thereby the compound firmness between the base cloth of coated filter material and skin covering of the surface reduces, be bonded at that dust on the skin covering of the surface is very fast just can be pulled down skin covering of the surface from base cloth, cause a large amount of dusts to be bonded at filter bag base cloth surface, and filter bag is blocked and make it lose filter efficacy very soon.
Summary of the invention
Problem at above-mentioned existence, the present invention proposes a kind of high temperature resistant (more than 190 ℃) polytetrafluoroethylene (PTFE) coated filter material, it not only can improve and improve acidproof, alkaline-resisting, the folding quality of glass fabric base cloth, while improves the glass fabric base cloth greatly and poly tetrafluoroethylene is laminated with firmness, the service life of prolongation in hot environment more than 190 ℃, satisfy the use needs that high-temperature flue gas filters industry.
Technical solution of the present invention is as follows: it comprises glass fibre base cloth and ptfe surface film, it is characterized in that: at first with post-treatment agent to the glass fibre base cloth flood, oven dry, post processing, carry out high temperature hot pressing with the ptfe surface film then; Post-treatment agent comprises fluoropolymer, fluorine containing silane coupling agent, film forming agent, its component following (percentage by weight):
Fluoropolymer emulsion 8-20%
Fluorine containing silane coupling agent 0.2-2.0%
Film forming agent emulsion or aqueous solution 1-8%;
Excess water.
Fluoropolymer is one of following kind in the present invention: 1) THV (copolymer of tetrafluoroethene, hexafluoropropene and vinylidene); 2) PFA (copolymer of tetrafluoroethene and perfluoroethylene); 3) FEP (copolymer of tetrafluoroethene and hexafluoropropene); 4) PTFE (polytetrafluoroethylene (PTFE)); 5) mixture of above four kinds of materials is wherein counted by weight percentage THV, PFA, FEP and is respectively accounted for 5～15%, and PTFE accounts for 55～85%.It is 50～60% that the solid content of fluoropolymer is counted by weight percentage.
The fluorine containing silane coupling agent is N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) coupling agent.Silane coupler Y
nSiX
(4-n)During (n=1-3) to the surface treatment of glass cloth, at first the hydrolysis of X group forms reactive Si-OH group, follows the Si-OH group generation dehydration on Si-OH group and glass cloth surface, forms the siloxane bond of bonding.Y group polarization fluorine-containing in fluoropolymer and the silane coupler adsorbs, and twines thereby macromolecular chain physics takes place; Simultaneously fluorine atom provides not and to contain amine groups in the share electron pair and silane coupler and hydrogen atom is provided and forms hydrogen bond and combine in the fluoropolymer, thereby fluoropolymer is connected together with silane coupler.Silane coupler plays effect like " bridge " between glass fabric and fluoropolymer, glass fabric and two kinds of materials of fluoropolymer are linked together closely.
Film forming agent is one of following kind: 1) polyurethane; 2) polyacrylate is counted by weight percentage the emulsion or the aqueous solution that solid content is 38-40%.
As everyone knows, glass fibre is a kind of inorganic material, and polytetrafluoroethylene (PTFE) is the very strong organic material of a kind of chemical inertness, both are laminated with by general macromolecule adhesive, and firmness is obviously not enough, are easy to occur demoulding, split problems such as film, especially use under hot conditions, problem is more outstanding.The present invention is by the processing of post-treatment agent, just formed the film that one deck has fluoropolymer, fluorine-containing coupling agent on the glass fibre base cloth.This film not only the has conventional post processing excellent acid that is produced, alkaline-resisting, folding quality, thereby improve antifouling, hate oil, antiseptic effect, the more important thing is that fluoropolymer and poly tetrafluoroethylene in this film all belong to high-molecular organic material, has identical polarity, fusing point and melting viscosity are all close, are easier to be fused to together.Fluoropolymer and poly tetrafluoroethylene are under the high temperature heating, and the increased activity of macromolecular chain more helps macromolecular chain and interpenetrates, twines, links on two polymer substance surfaces.Be laminated with thereby reach, solved the difficult problem of this inorganic material of glass fibre and this organic inert material strong bonded of polytetrafluoroethylene (PTFE) effectively with the fusion under the high temperature hot pressing condition of expanding microporous polytetrafluoroethylene (PTFE) film.From the experimental data of table the 1-6 as can be known, its maximum operation (service) temperature can reach 260 ℃; Be laminated with fastness between 0.50-0.80MPa, substantially exceeded existing product level (" environmental protection product is assert specification requirement sack cleaner coated filter material " regulation of State Environmental Protection Administration's issue is laminated with fastness more than or equal to 0.025MPa).
The expanding microporous polytetrafluoroethylene (PTFE) film that the present invention adopts, micro-pore diameter is about 0.2～3 micron, therefore in use, 100% collection can be accomplished, dust-collecting efficiency more than 99% can be reached the fine dust below 1 micron to the dust more than 1 micron.The film of the present invention's employing has improved porosity under the situation that guarantees micro-pore diameter in addition, and porosity reaches more than 90%, thereby has improved its gas permeability.Simultaneously because the intrinsic characteristics such as smooth surface performance of polytetrafluoroethylmaterial material itself, polytetrafluoroethylene (PTFE) coated filter material after feasible being laminated with, has good " surface filtration " characteristic, the filtrate clogging of avoiding traditional in-depth filtration to bring, filtration resistance is low, and the deashing number of times is few, has therefore prolonged the service life of coated filter material greatly, original product has only 1 year at general working condition following service life, can use now 3 years.Other relevant performance indications see Table 6.
In addition, advantages such as it is specious, good filtration effect, long service life are shown one's talent in filtrate market, and are well received, and the clarifying smoke and the material that are widely used in industries such as cement, metallurgy reclaim.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail.
1, the post-treatment agent of preparation fluorochemical oligomer.
The concrete prescription of the post-treatment agent of embodiment 1-22 sees Table 1-5.Count by weight percentage weighing, stirring is placed on the soaking in the hopper of fabric width 2m chemical treatment stove.
2, the post-treatment agent that makes with step 1 carries out post processing to glass fabric.
Alkali-free buiky yarn glass fabric is passed the storage cloth holder, put cloth apparatus to the trapezoidal hopper that soaks that post-treatment agent is housed through average rate (2m/min), enter hot-air oven behind the glass fabric dipping, oven dry is handled in handling stove (temperature is 220-320 ℃), after through three times heat bakings, pass through constant tension control device again, by the wrap-up rolling.
3, be laminated with.Before the hot pressing roller, expanding microporous polytetrafluoroethylene (PTFE) film (commercially available, specification FM10 (F)-4-120A)) is launched, be layered on the glass fabric of handling through step 2, carry out hot pressing with even velocity (2m/min) by the high temperature hot-rolling and be laminated with.
Embodiment 1-4 in the table 1, hot pressing temperature is 320 ℃, hot pressing pressure is 5MPa; Embodiment 5-7 in the table 2, hot pressing temperature is 260 ℃, hot pressing pressure is 5MPa; Embodiment 8-11 in the table 3, hot pressing temperature is 280 ℃, hot pressing pressure is 4MPa; Embodiment 12-15 in the table 4, hot pressing temperature is 370 ℃, hot pressing pressure is 3MPa; Embodiment 16-19 in the table 5, hot pressing temperature is 300 ℃, hot pressing pressure is 3MPa.
The material component proportioning all is weight percentage among the table 1-5, wherein tetrafluoroethene, hexafluoropropene and vinylidene fluoride copolymers (THV) solid content is 50%, tetrafluoroethene and perfluoroethylene copolymer (PFA) solid content are 50%, tetrafluoroethene and hexafluoropropylene copolymer (FEP) solid content is 50%, the polytetrafluoroethylene PTFE solid content is 60%, the solid content of polyurethane is 40%, and the polyacrylate solid content is 38%.
Table 1
| The embodiment sequence number | Tetrafluoroethene and perfluoroethylene copolymer (PFA) | N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) | Polyurethane KJ-101 | Water | Hot pressing temperature (℃) | Hot pressing pressure (MPa) |
| 1 | 8％ | 0.2％ | 1％ | Surplus | 320 | 5 |
| 2 | 12％ | 0.5％ | 4％ | Surplus | 320 | 5 |
| 3 | 16％ | 1.0％ | 6％ | Surplus | 320 | 5 |
| 4 | 20％ | 2.0％ | 8％ | Surplus | 320 | 5 |
Table 2
| The embodiment sequence number | The copolymer of tetrafluoroethene, hexafluoropropene and vinylidene (THV) | N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) | Polyacrylate | Water | Hot pressing temperature (℃) | Hot pressing pressure (MPa) |
| 5 | 8％ | 0.2％ | 1％ | Surplus | 260 | 5 |
| 6 | 15％ | 1.0％ | 5％ | Surplus | 260 | 5 |
| 7 | 20％ | 2.0％ | 8％ | Surplus | 260 | 5 |
Table 3
| The embodiment sequence number | Tetrafluoroethene and hexafluoropropylene copolymer (FEP) | N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) | Polyurethane KJ-101 | Water | Hot pressing temperature (℃) | Hot pressing pressure (MPa) |
| 8 | 8％ | 0.1％ | 1.0％ | Surplus | 280 | 4 |
| 9 | 11％ | 0.8％ | 4.6％ | Surplus | 280 | 4 |
| 10 | 13％ | 1.0％ | 5.1％ | Surplus | 280 | 4 |
| 11 | 20％ | 2.0％ | 8.0％ | Surplus | 280 | 4 |
Table 4
| The embodiment sequence number | Polytetrafluoroethylene (PTFE) | N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) | Polyacrylate | Water | Hot pressing temperature (℃) | Hot pressing pressure (MPa) |
| 12 | 8.0％ | 0.1％ | 1％ | Surplus | 370 | 3 |
| 13 | 10.0％ | 0.6％ | 4.5％ | Surplus | 370 | 3 |
| 14 | 16.0％ | 1.0％ | 5.9％ | Surplus | 370 | 3 |
| 15 | 20％ | 2.0％ | 8％ | Surplus | 370 | 3 |
Table 5
| The embodiment sequence number | THV, PFA, FEP, PTFE mix | N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane (DF-922) | Polyacrylate | Water | Hot pressing temperature (℃) | Hot pressing pressure (MPa) |
| 16 | 8％ | 0.1％ | 1％ | Surplus | 300 | 3 |
| 17 | 10％ | 0.6％ | 4％ | Surplus | 300 | 3 |
| 18 | 16％ | 1.0％ | 6％ | Surplus | 300 | 3 |
| 19 | 20％ | 2.0％ | 8％ | Surplus | 300 | 3 |
Annotate: THV, PFA, FEP respectively account for 10% of mixture total amount in the THV in this table, PET, FEP, the PTFE mixed liquor, and PTFE accounts for 70% of mixture.
Table 6 glass coated filter material Performance Detection index and application index
| Project | Performance indications | ||
| Mass area ratio (g/m 2) | 400 | 750 | |
| Tension failure brute force (N/25mm) | Warp-wise | 3303 | 8199 |
| Broadwise | 2964 | 7418 | |
| Air penetrability (cm/s) | 5.68 | 5.83 | |
| Compound fastness | Qualified | Qualified | |
| Be fit to the dedusting form | High speed blowback wind sleeve filter | The action of low-voltage pulse bag hose | |
| Maximum filtering wind speed (m/min) | 0.8 | 1.2 | |
| Maximum operation (service) temperature (℃) | 260 | 260 | |
| Filter efficiency (%) | 99.99％ | 99.99％ | |
| Outlet concentration of emission (mg/Nm 3) | ≤30 | ≤30 | |
| Running resistance (Pa) | ≤1500 | ≤1500 | |
| Service life | 3 years | 3 years | |
Claims (10)
1, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material, it comprises glass fibre base cloth and ptfe surface film, it is characterized in that: at first with post-treatment agent the glass fibre base cloth is flooded, dries processing, to carry out high temperature hot pressing compound with the ptfe surface film then.
2, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1 is characterized in that, post-treatment agent comprises fluoropolymer, fluorine containing silane coupling agent, film forming agent, and its components in weight percent is as follows:
Fluoropolymer emulsion 8-20%;
Fluorine containing silane coupling agent 0.2-2.0%;
Film forming agent emulsion or aqueous solution 1-8%;
Excess water.
3, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1 is characterized in that, fluoropolymer is one of following kind: 1) tetrafluoroethene, hexafluoropropene and vinylidene fluoride copolymers; 2) copolymer of tetrafluoroethene and perfluoroethylene; 3) copolymer of tetrafluoroethene and hexafluoropropene; 4) polytetrafluoroethylene (PTFE); 5) mixture of above four kinds of materials is wherein counted by weight percentage first three and is planted and respectively to account for the 5～15%, four kind and account for 55～85%.
4, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1 is characterized in that: it is 50～60% that the solid content of fluoropolymer is counted by weight percentage.
5, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1 is characterized in that: the fluorine containing silane coupling agent is N-perfluoroalkyl group sulfonyl, propyl-triethoxysilicane coupling agent.
6, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1, it is characterized in that: film forming agent is one of following kind: 1) polyurethane; 2) polyacrylate.
7, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 6 is characterized in that: the film forming agent solid content is counted by weight percentage and is 38-40%.
8, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1, it is characterized in that, technical parameter when with post-treatment agent the glass fibre base cloth being flooded, drying processing is as follows: impregnation process speed is 1-3m/min, and bake out temperature is 220-320 ℃, dries by the fire altogether three times.
9, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1 is characterized in that, the compound parameter of glass fibre base cloth and the hot pressing of ptfe surface film high-temp. is as follows: temperature 260-370 ℃; Pressure 3-5MPa; The speed of handling on the hot pressing roller is 1-3m/min.
10, high temperature resistant polytetrafluoroethylene (PTFE) coated filter material according to claim 1, it is characterized in that: ptfe surface membrane micropore diameter of phi=0.2-3 μ, porosity reaches more than 90%.
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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-
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