CN109514950A - A kind of high-performance PSA fiber filtering material and preparation method thereof - Google Patents

A kind of high-performance PSA fiber filtering material and preparation method thereof Download PDF

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Publication number
CN109514950A
CN109514950A CN201811170317.4A CN201811170317A CN109514950A CN 109514950 A CN109514950 A CN 109514950A CN 201811170317 A CN201811170317 A CN 201811170317A CN 109514950 A CN109514950 A CN 109514950A
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China
Prior art keywords
psa
layer
filtering material
fiber
performance
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CN201811170317.4A
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Chinese (zh)
Inventor
钱烨
胡圣武
黄燎辉
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Zhejiang Ruijie Filter Material Technology Co Ltd
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Zhejiang Ruijie Filter Material Technology Co Ltd
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Priority to CN201811170317.4A priority Critical patent/CN109514950A/en
Publication of CN109514950A publication Critical patent/CN109514950A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/308—Heat stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/04—Filters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Materials (AREA)

Abstract

The present invention provides a kind of high-performance PSA fiber filtering material, including four-layer structure, is followed successively by head-on layer, PSA substrate filter layer, PTFE base cloth layer, PSA substrate filter layer.The present invention also provides the preparation methods of high-performance PSA fiber filtering material, comprising the following steps: (1) fiber opening；(2) it combs；(3) lapping；(4) needle pierces；(5) press polish is singed；(6) stentering forming, dipping；(7) a face needle of PSA substrate filter layer and PTFE base cloth layer is pierced together；(8) another side of PTFE base cloth layer and PSA substrate filter layer are bonded together face-to-face；(9) PTFE film is covered in PSA substrate filter layer.PSA fiber filtering material of the invention uses surface filtration, and filter efficiency is high, can effectively filter out harmful substance, and be amenable to the erosion of chemical gas.

Description

A kind of high-performance PSA fiber filtering material and preparation method thereof
Technical field
The present invention relates to a kind of high-performance PSA fiber filtering materials and preparation method thereof, belong to filtering material technical field.
Background technique
According to sack cleaner and its features, filter bag is chronically in the case of high-temperature high concentration dust, using common Filtrate be not able to satisfy working condition requirement, and be easy to cause burning bag and discharge it is exceeded.Increase deduster operating cost.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of high-performance PSA fiber filtering material and its preparation side Method, the PSA fiber filtering material use surface filtration, and filter efficiency is high, can effectively filter out harmful substance, and be amenable to chemistry The erosion of gas.
The technical scheme to solve the above technical problems is that a kind of high-performance PSA fiber filtering material, including four Layer structure, is followed successively by head-on layer, PSA substrate filter layer, PTFE base cloth layer, PSA substrate filter layer.
The present invention is further arranged to, and the head-on layer includes that PTFE emulsion and thickener coat.
The present invention is further arranged to, and the PSA substrate filter layer is formed by PSA fibrous woven, and PSA fiber thickness is 0.08-0.12mm。
The present invention is further arranged to, and the high-performance PSA fiber filtering material grammes per square metre is 700 ± 10g/m2。
The present invention is further arranged to, and the PTFE base cloth layer is 100%PTFE, and grammes per square metre is 130 ± 10g/m2, radial strong Power >=1400N/ (5*20cm), broadwise strength >=400N/ (5*20cm).
The present invention also provides the preparation methods of above-mentioned high-performance PSA fiber filtering material, comprising the following steps:
(1) fabric thrashing first fiber opening: is passed through by the proportion of production technology by distribution of weighing automatically by bale opener Shredding is carried out to thick opener, the fiber of shredding is sent to big storehouse mixed cotton by opener blower and is transported to essence after mixing Shredding carries out shredding again；
(2) comb: by the good fiber of shredding by cotton storage tank blower be transported to air pressure cotton box feeding machine give carding machine into Row point comb and networking are conveyed to lapping machine；
(3) lapping: it is that the cotton net that will have been combed is conveyed by conveying carbon curtain into lapping machine, is rolled over cotton net by lapping machine It is folded, it is sent into pre-needling；
(4) needle pierces: being transferred to second main needle thorn after the cotton net that lapping machine is sent into is carried out pre-needling, passes through main-needling machine A positive and a negative and different punch frequencies carry out repeated puncture, reach the needling density of setting；
(5) press polish is singed: the filtrate of needle thorn completion carries out surface through filter material gassing frame and singes processing and by the table of filtrate Face carries out pre- calendering；
(6) stentering forming, dipping: the filtrate for completion of singing is transmitted to forming machine baking oven by impregnator, glue pressing machine and carries out Drying guarantees that surface layer chemical industry obtains deep level of processing, PSA substrate filter layer is made；
(7) a face needle of PSA substrate filter layer and PTFE base cloth layer is pierced together；
(8) another side of PTFE base cloth layer and PSA substrate filter layer are bonded together face-to-face；
(9) PTFE film is covered in PSA substrate filter layer.
The present invention is further arranged to, and the needling density set is 20-30 (thorn/cm2)。
The present invention is further arranged to, and pre- calendering temperature is 200-220 DEG C.
The present invention is further arranged to, and in step (1), before thick opener carries out shredding, fiber is first added its matter The antistatic agent of amount 3%, carries out subsequent operation after parking after being wrapped up with cloth 6-24 hours again.Prevent fiber from passing through after shredding twice Strong electrostatic is generated, causes difficulty to combing, influences stratum reticulare quality.
The present invention is further arranged to, and increases the negative electrical charge of anion 5000-10000 on the fiber entry of carding machine, Fiber and local humidification are swept away by air pressure conveying, fiber electrostatic can be eliminated in 2-4 seconds.
High-performance PSA fiber filtering material key property of the invention includes:
(1) according to smoke characteristics such as kiln hoods, select PSA fiber high-temperature fibre, can environment uses within 220 DEG C for a long time, Thermal stability height, heat resistance, flame retardant property are good.
(2) majority fibers material uses graded composite, and fiber fractionation obvolvent, aperture is small, and porosity is high, and compactness is good, mentions High filtering precision and filter efficiency.
(3) concentration of emission≤10 ㎎/m can be used for a long time in PSA fiber filtering material3。
There are three types of state, in-depth filtration, transient state filtering and surface filtration, high-performance PSA fibers of the invention for the filtering of filtrate Filtering material is mainly surface filtration.In-depth filtration: clean new filter bag, the hole of fiber is big, and particle is directly entered filtrate Inside blocks fiber hole, increase dust remover resistance, the rising of resistance is related with the characteristic of filtrate and dust, complex working condition Even more difficult dust.Surface filtration particle under certain filtration velocity hardly enters inside filtrate, meets level heap in filtrate Product is got up, and fine and close dust layer is formed.This dust layer plays a role in filtering, but encounters bulky grain and sharp class dust and will lead to filtrate Surface fracture, head-on layer is damaged and reduces filter effect.The problem of PSA fiber filtering material of the invention can solve this respect.
PSA fiber filtering material of the invention uses multilayered structure, and shock resistance high-temperature fibre is selected to do surface material, real Existing surface filtration more effectively captures dust, and is post-processed by surface, and filter material surface is smooth, is easy to deashing.Filtrate internal layer is adopted It with the homogeneous material of different size, is combined, improves the porosity of filtrate, reduce the running resistance of filtrate.And using single PSA different size fiber, guarantee being heated evenly for whole filter bag, guarantee thermal stability reliably and with long-term.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.
Embodiment 1
A kind of high-performance PSA fiber filtering material, including four-layer structure are followed successively by head-on layer, PSA substrate filter layer, PTFE Base cloth layer, PSA substrate filter layer.Wherein, head-on layer includes that PTFE emulsion and thickener coat.PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.09mm.High-performance PSA fiber filtering material grammes per square metre is 700g/m2.PTFE base Layer of cloth is 100%PTFE, grammes per square metre 140g/m2, radial strength 1460N/ (5*20cm), broadwise strength 430N/ (5*20cm).
Embodiment 2
A kind of high-performance PSA fiber filtering material, including four-layer structure are followed successively by head-on layer, PSA substrate filter layer, PTFE Base cloth layer, PSA substrate filter layer.Wherein, head-on layer includes that PTFE emulsion and thickener coat.PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.08mm.High-performance PSA fiber filtering material grammes per square metre is 710g/m2.PTFE base Layer of cloth is 100%PTFE, grammes per square metre 115g/m2, radial strength 1406N/ (5*20cm), broadwise strength 401N/ (5*20cm).
Embodiment 3
A kind of high-performance PSA fiber filtering material, including four-layer structure are followed successively by head-on layer, PSA substrate filter layer, PTFE Base cloth layer, PSA substrate filter layer.Wherein, head-on layer includes that PTFE emulsion and thickener coat.PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.12mm.High-performance PSA fiber filtering material grammes per square metre is 690g/m2.PTFE base Layer of cloth is 100%PTFE, grammes per square metre 125g/m2, radial strength 1430N/ (5*20cm), broadwise strength 420N/ (5*20cm).
Embodiment 4
A kind of high-performance PSA fiber filtering material, including four-layer structure are followed successively by head-on layer, PSA substrate filter layer, PTFE Base cloth layer, PSA substrate filter layer.Wherein, head-on layer includes that PTFE emulsion and thickener coat.PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.10mm.High-performance PSA fiber filtering material grammes per square metre is 700g/m2.PTFE base Layer of cloth is 100%PTFE, grammes per square metre 110g/m2, radial strength 1430N/ (5*20cm), broadwise strength 413N/ (5*20cm).
Embodiment 5
A kind of high-performance PSA fiber filtering material, including four-layer structure are followed successively by head-on layer, PSA substrate filter layer, PTFE Base cloth layer, PSA substrate filter layer.Wherein, head-on layer includes that PTFE emulsion and thickener coat.PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.11mm.High-performance PSA fiber filtering material grammes per square metre is 710g/m2.PTFE base Layer of cloth is 100%PTFE, grammes per square metre 130g/m2, radial strength 1520N/ (5*20cm), broadwise strength 482N/ (5*20cm).
The present invention also provides the preparation methods of above-mentioned high-performance PSA fiber filtering material, comprising the following steps:
(1) fabric thrashing first fiber opening: is passed through by the proportion of production technology by distribution of weighing automatically by bale opener Shredding is carried out to thick opener, the fiber of shredding is sent to big storehouse mixed cotton by opener blower and is transported to essence after mixing Shredding carries out shredding again；
(2) comb: by the good fiber of shredding by cotton storage tank blower be transported to air pressure cotton box feeding machine give carding machine into Row point comb and networking are conveyed to lapping machine；
(3) lapping: it is that the cotton net that will have been combed is conveyed by conveying carbon curtain into lapping machine, is rolled over cotton net by lapping machine It is folded, it is sent into pre-needling；
(4) needle pierces: being transferred to second main needle thorn after the cotton net that lapping machine is sent into is carried out pre-needling, passes through main-needling machine A positive and a negative and different punch frequencies carry out repeated puncture, reach the needling density 20-30 (thorn/cm of setting2)；
(5) press polish is singed: the filtrate of needle thorn completion carries out surface through filter material gassing frame and singes processing and by the table of filtrate Face carries out pre- calendering, and temperature is 200-220 DEG C；
(6) stentering forming, dipping: the filtrate for completion of singing is transmitted to forming machine baking oven by impregnator, glue pressing machine and carries out Drying guarantees that surface layer chemical industry obtains deep level of processing, PSA substrate filter layer is made；
(7) a face needle of PSA substrate filter layer and PTFE base cloth layer is pierced together；
(8) another side of PTFE base cloth layer and PSA substrate filter layer are bonded together face-to-face；
(9) PTFE film is covered in PSA substrate filter layer.
It is easy to produce electrostatic phenomenon in shredding or laid process, for ease of operation, eliminates electrostatic, it can be in thick shredding Before machine carries out shredding, fiber is first added to the antistatic agent of its quality 3%, is parked after being wrapped up with cloth 6-24 hours, to sufficiently inhale Subsequent operation is carried out after receipts again.Alternatively, increasing the negative electrical charge of anion 5000-10000 on the fiber entry of carding machine, pass through Fiber and local humidification are swept away in air pressure conveying.The short processing time of latter approach, it is high-efficient.
In order to verify the performance of high-performance PSA fiber filtering material, the following test of progress:
1, the detection of filtrate strength and elongation
Forceful nature detection, elongation are detected by the regulation of GB/T3923.1, and preparation is able to satisfy nominal clamping length up to 200 ㎜.Width is five, sample of 50 ㎜, and five one end is fixedly clamped respectively, and every another end loads 40N, after standing for 24 hours Unloading, removes sample and measures its length, calculate separately the elongation of five samples, be then averaged.
2, filtrate gas permeability detects
3, the detection of filtering material resistance characteristic
(1) clean filtering material resistance coefficient is detected using filtrate static properties tester.
(2) dynamic resistance of filtrate, residual resistive are detected using filtrate static properties tester.
4, filtrate dust filtering performance detection
(1) filtrate static state dust filtering performance is detected using filtrate static properties tester.
(2) filtrate dynamic dust filtering performance is detected using filtrate dynamic characteristics measuring instrument.
Measure breaking strength: radial direction >=900N, broadwise >=1200N；
Elongation at break: radial≤15%, broadwise≤45%；
Percent thermal shrinkage (220 DEG C 24 hours): radial≤1%, broadwise≤1%；
Ultimate strength conservation rate (220 DEG C 24 hours): radial >=100%, broadwise >=100%；
Dedusting characteristic: efficiency of dust collection > 99.99% (test terminal stage)；
Air permeability (m3/(m2* min)) it is 9.1-10.1；
Clear dirt characteristic: dust removes > 89.2% (test terminal stage)；A cycle 32, which is divided 21 seconds, to be started, last A period 6, which divides 32 seconds, to be counted.
All key indexes have reached technological work instructions requirement.
PSA fiber filtering material key property of the invention includes:
(1) unstable for deduster internal temperature, filtration velocity is high, and filter bag is be easy to cause to damage, and reduces filter bag and uses Service life.Filter bag substrate is combined, its performance is improved, not will cause breakage in use.At chemistry Science and engineering skill, promotes that filtrate itself is acidproof, alkaline resistance properties, and the deduster being more suitable under special worst hot case uses.
(2) filter bag made of PSA fiber filtering material is applied under the different occasion of cement, steel, smelting industry, with Ordinary filter is compared, and because of high temperature resistant, thermal stability is good, improves the filter bag replacement cycle, and filter efficiency is high, deduster running resistance drop It is low, it can largely save energy consumption.
(3) internal structure of filtrate, filter effect, resistance and the service life of pore structure strong influence filtrate.This Composite material is selected in invention, and anti-ballistic materials are selected on surface, and effectively sharp class particle can be kept off on filtrate surface layer.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of high-performance PSA fiber filtering material, which is characterized in that including four-layer structure, be followed successively by head-on layer, PSA substrate mistake Filtering layer, PTFE base cloth layer, PSA substrate filter layer.
2. high-performance PSA fiber filtering material according to claim 1, which is characterized in that the head-on layer includes by PTFE Lotion and thickener coat.
3. high-performance PSA fiber filtering material according to claim 1, which is characterized in that the PSA substrate filter layer by PSA fibrous woven forms, and PSA fiber thickness is 0.08-0.12mm.
4. high-performance PSA fiber filtering material according to claim 1, which is characterized in that the high-performance PSA fiber filtering Material grammes per square metre is 700 ± 10g/m2。
5. high-performance PSA fiber filtering material according to claim 1, which is characterized in that the PTFE base cloth layer is 100%PTFE, grammes per square metre are 130 ± 10g/m2, radial strength >=1400N/ (5*20cm), broadwise strength >=400N/ (5*20cm).
6. the preparation method of the described in any item high-performance PSA fiber filtering materials of claim 1-5, which is characterized in that including with Lower step:
(1) fiber opening: first fabric thrashing is assigned to slightly by the proportion of production technology by weighing automatically by bale opener Opener carries out shredding, and the fiber of shredding is sent to big storehouse mixed cotton by opener blower and is transported to smart shredding after mixing Carry out shredding again；
(2) it combs: the good fiber of shredding by cotton storage tank blower being transported to air pressure cotton box feeding machine gives carding machine and divided Comb and networking are conveyed to lapping machine；
(3) lapping: it is that the cotton net that will have been combed is conveyed by conveying carbon curtain into lapping machine, cotton net is folded by lapping machine, is sent Enter pre-needling；
(4) needle pierces: will cotton net that lapping machine is sent into carry out pre-needling after be transferred to second main needle thorn, by main-needling machine one just One anti-and different punch frequency carries out repeated puncture, reaches the needling density of setting；
(5) press polish is singed: needle thorn completion filtrate through filter material gassing frame carry out surface singe processing and by the surface of filtrate into The pre- calendering of row；
(6) stentering forming, dipping: the filtrate for completion of singing is transmitted to forming machine baking oven by impregnator, glue pressing machine and is dried, Guarantee that surface layer chemical industry obtains deep level of processing, PSA substrate filter layer is made；
(7) a face needle of PSA substrate filter layer and PTFE base cloth layer is pierced together；
(8) another side of PTFE base cloth layer and PSA substrate filter layer are bonded together face-to-face；
(9) PTFE film is covered in PSA substrate filter layer.
7. the preparation method of high-performance PSA fiber filtering material according to claim 6, which is characterized in that the setting Needling density is 20-30 (thorn/cm2)。
8. the preparation method of high-performance PSA fiber filtering material according to claim 6, which is characterized in that pre- calendering temperature It is 200-220 DEG C.
9. the preparation method of high-performance PSA fiber filtering material according to claim 6, which is characterized in that in step (1) In, before thick opener carries out shredding, fiber is first added to the antistatic agent of its quality 3%, it is small to park 6-24 after being wrapped up with cloth Shi Houzai carries out subsequent operation.
10. the preparation method of high-performance PSA fiber filtering material according to claim 6, which is characterized in that in carding machine Fiber entry on increase anion 5000-10000 negative electrical charge, by air pressure conveying sweep away fiber and local humidification.
CN201811170317.4A 2018-10-09 2018-10-09 A kind of high-performance PSA fiber filtering material and preparation method thereof Pending CN109514950A (en)

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CN113652799A (en) * 2021-09-14 2021-11-16 安徽利通达纤维新材料有限公司 Preparation process method of needle-punched dust removal filter cloth
CN114457507A (en) * 2022-02-10 2022-05-10 浙江华基环保科技有限公司 Production process of polyester anti-sticking bag needled felt

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CN103691208A (en) * 2013-12-18 2014-04-02 上海秋橙新材料科技有限公司 Composite high temperature resistant polysulfonamide fiber filter felt and preparation method thereof
CN104548751A (en) * 2014-12-31 2015-04-29 厦门三维丝环保股份有限公司 Ultra-high precision glass fiber composite spunlace coated filter material and preparation method thereof
CN105879493A (en) * 2016-04-22 2016-08-24 苏州派欧技术咨询服务有限公司 Preparation method of composite filter material

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CN103691208A (en) * 2013-12-18 2014-04-02 上海秋橙新材料科技有限公司 Composite high temperature resistant polysulfonamide fiber filter felt and preparation method thereof
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Publication number Priority date Publication date Assignee Title
CN113652799A (en) * 2021-09-14 2021-11-16 安徽利通达纤维新材料有限公司 Preparation process method of needle-punched dust removal filter cloth
CN113652799B (en) * 2021-09-14 2022-12-16 安徽利通达纤维新材料有限公司 Preparation process method of needling dust removal filter cloth
CN114457507A (en) * 2022-02-10 2022-05-10 浙江华基环保科技有限公司 Production process of polyester anti-sticking bag needled felt
CN114457507B (en) * 2022-02-10 2022-09-02 浙江华基环保科技有限公司 Production process of polyester anti-sticking bag needled felt

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