CN106012296A - Composite non-woven filter material and preparation method thereof - Google Patents
Composite non-woven filter material and preparation method thereof Download PDFInfo
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- CN106012296A CN106012296A CN201610454570.7A CN201610454570A CN106012296A CN 106012296 A CN106012296 A CN 106012296A CN 201610454570 A CN201610454570 A CN 201610454570A CN 106012296 A CN106012296 A CN 106012296A
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- polyester
- polyamide
- fiber
- preparation
- complex nonwoven
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- 239000000463 material Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title abstract description 5
- 239000004952 Polyamide Substances 0.000 claims abstract description 100
- 229920002647 polyamide Polymers 0.000 claims abstract description 100
- 239000000835 fiber Substances 0.000 claims abstract description 92
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims abstract description 75
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- 239000000243 solution Substances 0.000 claims abstract description 9
- 239000012670 alkaline solution Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 47
- 229920000728 polyester Polymers 0.000 claims description 32
- 238000001914 filtration Methods 0.000 claims description 27
- 238000001467 acupuncture Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000005530 etching Methods 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- -1 carbon alcohol phosphate ester Chemical class 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 7
- 229940079593 drug Drugs 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229950000845 politef Drugs 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 206010008190 Cerebrovascular accident Diseases 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 claims description 2
- 208000006011 Stroke Diseases 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- JIJAYWGYIDJVJI-UHFFFAOYSA-N butyl naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)OCCCC)=CC=CC2=C1 JIJAYWGYIDJVJI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 239000010977 jade Substances 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- 150000001412 amines Chemical class 0.000 claims 1
- 229920000578 graft copolymer Polymers 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 239000004615 ingredient Substances 0.000 abstract 3
- 238000004080 punching Methods 0.000 abstract 2
- 239000003929 acidic solution Substances 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000006558 Dental Calculus Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000010669 acid-base reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
- D04H1/40—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
- D04H1/492—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 by fluid jet
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
- D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
-
- 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
-
- 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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a composite non-woven filter material and a preparation method thereof. The composite non-woven filter material is characterized in that bent channel pore structures are formed on the fiber surfaces due to needle punching and spunlace reinforcement; each fiber simultaneously comprises two polymer ingredients, namely, polyester and polyamide, and the two polymer ingredients are distributed irregularly in an island manner in fibers. The preparation method comprises steps as follows: a polyester/polyamide blended filament fiber net is prepared with a spun-bonding forming process, reinforced through needle punching and then soaked in an acidic or alkaline solution, and parts of polyester or polyamide ingredients on the fiber surfaces are corroded, so that rough structures are formed on the fiber surfaces; spunlace reinforcement is further performed, treating solutions on the fiber surfaces are washed away, hydrophobic finishing is performed, and the composite non-woven filter material can be prepared. The prepared filter material has a good hydrophobic effect and is also endowed with higher mechanical performance and better size stability by the filament fibers.
Description
Technical field
The present invention relates to a kind of complex nonwoven filtering material and preparation method thereof, particularly fiber surface has one
Determine hydrophobic polyester/polyamide blended spun-bonded continuous yarn acupuncture/spun lacing composite nonwoven material and the preparation side thereof of roughness
Method.
Background technology
Along with pollutant emission index is improved constantly by country, to as sack cleaner main filtration function group
The structure of the needled punched nonwoven material of part and performance propose the highest requirement.Sack cleaner is as efficiently
The smoke gas treatment systems such as cleaner is widely used in power plant, metallurgy, waste incineration.Filtrate is to affect pocket type
Cleaner unit service life and the most important factor of efficiency of dust collection, owing to the condition such as equipment, production technology limits, state
Interior filtrate technology lags behind abroad for a long time.It addition, China's coal-burning boiler used equipment is more, coal variety is various,
The factors such as the technological literacy of incomplete combustion and fireman cause fire coal boiler fume high temperature, high concentration and complexity
Etc. special flue gas operating mode.Therefore, the Novel filter material seeking applicable China present situation is to solve current sack cleaner to answer
By one of effective way of a difficult problem.It is known that filtration flue gas often contains substantial amounts of water vapour, in discharge
During easily form dew condensation phenomenon on filter bag surface, thus have impact on the ash-removal effect of filter bag, reduce filter bag
Filter efficiency and improve filtration resistance, have an effect on the service life of filter bag.It is thus desirable to improve the hydrophobic of filtrate
Effect, alleviates dew condensation phenomenon.
The hydrophobicity of material surface depends primarily on two factors: one is the surface energy of material；Two is material surface
Roughness.Many studies have shown that, having micro-nano coarse structure surface is the major reason forming hydrophobic effect.
Material surface is carried out illumination, additive, electric treatment etc., improves the roughness of material surface, can be necessarily
More preferable hydrophobicity is obtained in degree.
The patent of invention of Application No. CN201510299456, discloses a kind of nano-tube/line modified fibre
The new method on surface, is successively heated to reflux fiber in organic solvent and deionized water, after then processing
Fiber is placed in plasma generating device process, then the fiber after processing immerses further in organic solvent and locates
Reason, can make the roughness of fiber surface dramatically increase, improve the hydrophobicity of fiber, improve fibre efficiently
The resistant to hydrolysis ability of dimension.
Terylene (polyester) and nylon (polyamide) are conventional fibrous materials, are also important weaving filter materials
Material fibrous raw material.Utilize polyester and the incompatibility of polyamide both polymer, be made into skin-core structure
Bicomponent fibre, or Fructus Citri tangerinae lobe fiber type fibrillation become superfine fibre, is the most ripe industrial skill
Art, but it is less to make the research application in terms of blended fiber after being blended by two kinds of polymer melts.
The patent of invention of Application No. 201410026134.0, disclose a kind of modified poly ester blended fiber and
Preparation method, described blended fiber prepared with polyamide blended melt spinning by modified poly ester, and blended fiber is often
For acid-dyeable dark color under normal temperature and pressure, overcome conventional modified polyester complex fiber dyeing uniformity difference
Shortcoming.
It addition, polyester and polyamide show different stability in acid-base solution, alkaline solution can be used
Polyester is carried out alkali decrement treatment, it would however also be possible to employ acid solution carries out surface etch to polyamide.Such as, Shen
Please number be the patent of invention of 201210348404.0, disclose a kind of blended fiber and production method thereof, this be altogether
After combined filament woven into fabric, under the conditions of aqueous slkali, carry out stripping property process the dissolution copolymerization getting rid of in fiber
Ester, makes the Fypro in blended fiber form micro hole construction, gives the water-absorbing fast-drying performance that fabric is good.
In sum, on the basis of existing technology, in spunbond forming process, polyester and polyamide two kinds are gathered
Polymer melt prepares polyester/polyamide blend filament after being blended, after preliminary acupuncture, and recycling polyester and polyamide
Different stability in acid-base solution, partial etching falls the polyester of fiber surface or polyamide component and makes fibre
Dimension table face is roughened, then is reinforced further by fibre web by spun lacing and washed away the acid-alkali treatment liquid of fiber surface,
Prepare hydrophobic polyester/polyamide blended long filament filtrate, be used as Anti-dew flue filtering material, not disclosed report
Road.
Summary of the invention
Hydrophobic polyester/polyamide that the technical problem to be solved is to provide a kind of fiber surface coarse is common
Mixed long filament filtrate and preparation method thereof, to solve the deficiencies in the prior art.
For solving the problems referred to above, the invention provides a kind of complex nonwoven filtering material, particularly fiber surface
There is the hydrophobic polyester/polyamide blended spun-bonded continuous yarn non-woven filter material of certain roughness, it is characterised in that
Fiber surface is because reinforcing through acupuncture and spun lacing and have bending channel aperture structure；Every in non-woven filter material
Root fiber includes the polyester in island shape random and two kinds of polymer component of polyamide simultaneously.
Preferably, its surface density is 150～250g/m2, Air permenbility is 25～40L/ (m2S), contact angle is
110 °～130 °, the average diameter of polyester/polyamide blend filament is 15～35 μm, fiber surface coarse
Degree is 0.025～0.1 μm.
Preferably, described polyester and polyamide can be homopolymer, it is also possible to be copolymer.
Preferably, the differences in viscosity of described polyester and polyamide is not more than 300Pa s.
Preferably, in every fiber, the percentage by weight of polyester and polyamide is 1/99～99/1.
It is highly preferred that the percentage by weight of polyester and polyamide is 40/60～60/40 in every fiber.
Preferably, raw material, in addition to polyester and polyamide blended resin, also includes that epoxy resin, maleic anhydride connect
At least one in branch polymer, polyester-polyamide copolymer is as compatilizer.
It is highly preferred that the percentage by weight that described compatilizer is in the fibre is 1.0～5.0wt%.
The present invention also provided for the preparation method of a kind of complex nonwoven filtering material, it is characterised in that concrete
Step is as follows:
The first step: polyester and polyamide are dried；
Second step: the polyester of drying, polyamide and/or compatilizer are proportionally added into product line of spinning viscose
Screw extruder in, carry out polyester/spunbond shaping of amide blend filament；
3rd step: above-mentioned spunbond forming polyester/polyamide blended filament web is transported to acupuncture unit and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads；
4th step: be sent to subtract by the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement
Carrying out decrement treatment in amount treatment trough, partial etching falls polyester or the polyamide component of fiber surface, makes fiber
Rough surface；
5th step: the above-mentioned polyester/polyamide blend filament non-woven material through decrement treatment is sent to spun lacing
Machine is reinforced, and washes away the treatment fluid of fiber surface simultaneously；
6th step: the polyester/polyamide blend filament non-woven material the 5th step prepared is sent in dehydrator and dried
Dry, obtain the non-woven filtrate of polyester/polyamide blend filament that fiber surface is coarse.
Preferably, after in the described first step, polyester and polyamide section are dried, its water content is not more than
40ppm。
Preferably, described second step spunbond process is: each district temperature of extruder: a district 150～180 DEG C, two
District 180～270 DEG C, three districts 270～330 DEG C, four districts 320～340 DEG C；Die head temperature 300～320 DEG C；Side-blown
Air temperature is 10～25 DEG C；Drawing air speed is 500～900m/s.
Preferably, described 3rd step needling process is: bestock 2000-3000 piece of pre-needling machine/m, adopts
With lower thorn formula pricker movement locus, punch frequency is 300-600 thorn/min；First and the main acupuncture of second divide
Cai Yong not go up thorn formula and lower thorn formula acupuncture movement locus, needle plate bestock 4000-6000 piece/m, punch frequency
For 800-1200 thorn/min.
Preferably, the decrement process in described 4th step uses the polyamide of acid solution etching fiber surface to become
Point, its treatment conditions are: pH value is 2～5, and temperature is 40～90 DEG C, and the time is 1～5min；Or
Using the polyester component of alkaline solution etching fiber surface, its treatment conditions are: NaOH weight percent concentration
It is 0.5～2.0wt%, temperature 80～90 DEG C, the time 1～5min.
It is highly preferred that add semi-annular jade pendant base succinate, butyl naphthalene sulfonate, middle carbon alcohol phosphoric acid in described treatment fluid
At least one in ester, capryl alcohol polyoxyethylene ether is as penetrating agent, and its weight percent concentration is 1.0～2.5
Wt%.
Preferably, in described 5th step, water jet process condition is: spun lacing number of channels is 2～4 roads, and liquid drugs injection pressure is
70～100Bar.
Preferably, the temperature dried in described 6th step is 100～150 DEG C.
Preferably, the polyester/polyamide blend filament spunlace non-woven material obtained by described 5th step is being dried
Take a step forward and be impregnated in the hydrophobic finishing liquid containing low-surface energy substance, carry out hydrophobic Final finishing.
It is highly preferred that the low-surface energy substance in described hydrophobic finishing liquid is politef, flourine-containing acrylate ester,
Fluorine carbon phosphate ester, any one of polydimethylsiloxane and silicon fluoride apoplexy due to endogenous wind, its weight hundred in dressing liquid
Proportion by subtraction concentration is 1.5～3.0wt%.
The polymer melt that polyester and polyamide two kinds have different acid-base reaction characteristic is blended by the present invention, passes through
Spunbond forming technology prepares polyester/polyamide blend filament fleece, certain by giving fibre web after pinprick reinforcement
Mechanical property, be then dipped in weak acid or weak caustic solution, partial etching falls the polyester of fiber surface
Or polyamide component, thus form coarse structure at fiber surface.Spun lacing is reinforced further, washes simultaneously
The treatment fluid of fiber surface, carries out hydrophobic Final finishing the most again, obtain fiber surface coarse and be coated with thin
The polyester/polyamide blend filament non-woven material of water finishing agent.This invented technology technology path integrated level is high,
Raw material sources are wide, have obvious technical advantage.Made shaggy hydrophobic polyester/polyamide filaments
Non-woven filtrate, can show more preferable hydrophobic effect, when being used as flue filtering material, shows preferably
Anti-dew effect.Meanwhile, filament fiber also gives the higher mechanical property of filtrate and more preferable dimensional stability.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, it is described in detail below.
Embodiment 1
The first step: the COPET that cut into slices by water-soluble polyester (Changzhou synthetic material company limited) and relative viscosity are
It is 30 that the polyamide PA6 (Mei Da nylon chips limited company of Xinhui of Guangdong Province) of 3.48 dries water content
ppm。
Second step: the polyester dried and polyamide section are joined spunbond production according to the ratio of 40: 60
In the screw extruder hopper of line, set each district temperature of extruder as 150 DEG C of a district, two 180 DEG C of districts,
Three 270 DEG C of districts, four 320 DEG C of districts, die head temperature 300 DEG C, the temperature of cross air blasting is 25 DEG C, drawing air
Speed is 500m/s, carries out the spunbond shaping of polyester/polyamide blend filament.
3rd step, is transported to acupuncture unit by above-mentioned spunbond forming polyester/polyamide blended filament web and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads.Wherein, the 2000 pieces/m of bestock of pre-needling machine, use lower thorn
Formula pricker movement locus, punch frequency is 300 thorns/min.First and the main acupuncture of second are respectively adopted thorn
Formula and lower thorn formula acupuncture movement locus, 4000 pieces/m of needle plate bestock, punch frequency is 800 thorns/min.
4th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement into decrement
Carrying out decrement treatment in treatment trough, alkaline solution treatment conditions are: the weight percent concentration of NaOH is 0.5
Wt%, temperature 80 DEG C, time 1min, make fiber surface be roughened.
5th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through decrement treatment into spun-laced machine
Reinforcing, wash away the alkali treatment fluid of fiber surface simultaneously, water jet process condition is: 2 road spun lacing, first
The liquid drugs injection pressure of road and second water jet is respectively 70Bar and 90Bar.
6th step, the polyester/polyamide blend filament non-woven material the 5th step prepared is sent in dehydrator and is dried
Dry, the temperature of dehydrator is 100 DEG C, obtains the non-woven filter of polyester/polyamide blend filament that fiber surface is coarse
Material, its surface density is 150g/m2, Air permenbility is 40L/ (m2S), contact angle is 110 °, fibre diameter
Being 35 μm, fiber surface roughness is 0.025 μm.
Embodiment 2
The first step: by polyester slice BRN-204 (China PetroChemical Corporation) andWater content is dried in Copolyamides copolyamide (Shanghai Ah's Kerma (unit of kinetic energy) Chemical Co., Ltd.) section
For 20ppm.
Second step: the polyester dried and copolyamide resin slicer are joined spunbond life according to the ratio of 60: 40
Produce in the screw extruder hopper of line, set each district temperature of extruder as 180 DEG C of a district, two 270 DEG C of districts,
Three 320 DEG C of districts, four 330 DEG C of districts, die head temperature 320 DEG C, the temperature of cross air blasting is 15 DEG C, drawing-off sky
The speed of gas is 900m/s, carries out the spunbond shaping of polyester/polyamide blend filament.
3rd step, is transported to acupuncture unit by above-mentioned spunbond forming polyester/polyamide blended filament web and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads.Wherein, the 2000 pieces/m of bestock of pre-needling machine, use lower thorn
Formula pricker movement locus, punch frequency is 600 thorns/min.First and the main acupuncture of second are respectively adopted thorn
Formula and lower thorn formula acupuncture movement locus, 4000 pieces/m of needle plate bestock, punch frequency is 1200 thorns/min.
4th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement into decrement
Carrying out decrement treatment in treatment trough, acid solution treatment conditions are: pH value is 2, and temperature is 40 DEG C, the time
For 2min, partial etching falls the copolyamide composition of fiber surface, makes fiber surface be roughened.
5th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through alkali decrement treatment into spun lacing
Machine is reinforced, and washes away the treatment fluid of fiber surface simultaneously, and water jet process condition is: 4 road spun lacing, each road
The liquid drugs injection pressure of water jet is respectively 70, and 80,90 and 100Bar.
6th step, the polyester/polyamide blend filament non-woven material the 5th step prepared is sent in dehydrator and is dried
Dry, the temperature of dehydrator is 120 DEG C, and the polyester/polyamide blend filament obtaining fiber surface coarse is non-woven
Filtrate, its surface density is 180g/m2, Air permenbility is 30L/ (m2S), contact angle is 115 °, and fiber is straight
Footpath is 18 μm, and fiber surface roughness is 0.030 μm.
Embodiment 3
The first step: the COPET that cut into slices by water-soluble polyester (Changzhou synthetic material company limited) and relative viscosity are
It is 30 that the polyamide PA6 (Mei Da nylon chips limited company of Xinhui of Guangdong Province) of 3.48 dries water content
ppm。
Second step: the polyester dried and polyamide section are joined spunbond production according to the ratio of 40: 60
In the screw extruder hopper of line, set each district temperature of extruder as 150 DEG C of a district, two 180 DEG C of districts,
Three 270 DEG C of districts, four 320 DEG C of districts, die head temperature 300 DEG C, the temperature of cross air blasting is 10 DEG C, drawing air
Speed is 500m/s, carries out the spunbond shaping of polyester/polyamide blend filament.
3rd step, is transported to acupuncture unit by above-mentioned spunbond forming polyester/polyamide blended filament web and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads.Wherein, the 3000 pieces/m of bestock of pre-needling machine, use lower thorn
Formula pricker movement locus, punch frequency is 300 thorns/min.First and the main acupuncture of second are respectively adopted thorn
Formula and lower thorn formula acupuncture movement locus, 6000 pieces/m of needle plate bestock, punch frequency is 800 thorns/min.
4th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement into decrement
Carrying out decrement treatment in treatment trough, alkaline solution treatment conditions are: the weight percent concentration of NaOH is 2.0
Wt%, temperature 90 DEG C, time 5min, partial etching falls the polyester components of fiber surface, makes fiber surface
Roughening.
5th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through alkali decrement treatment into spun lacing
Machine is reinforced, and washes away the treatment fluid of fiber surface simultaneously, and water jet process condition is: 2 road spun lacing, and first
The liquid drugs injection pressure of road and second water jet is respectively 70Bar and 90Bar.
6th step, enters one by the polyester/polyamide blend filament spunlace non-woven material obtained by described 5th step
Step is impregnated in the politef hydrophobic finishing liquid that weight percent concentration is 3.0wt%, carries out hydrophobic rear whole
Reason.
7th step, the polyester/polyamide blend filament non-woven material the 6th step prepared is sent in dehydrator and is dried
Dry, the temperature of dehydrator is 150 DEG C, obtains the non-woven filter of polyester/polyamide blend filament that fiber surface is coarse
Material, its surface density is 150g/m2, Air permenbility is 37L/ (m2S), contact angle is 125 °, fibre diameter
Being 32 μm, fiber surface roughness is 0.05 μm.
Embodiment 4
The first step: be by polyester slice BRN-204 (China PetroChemical Corporation) and the trade mark
It is 30ppm that the polyamide PA66 (China Shenma Group Co., Ltd.) of FYR25BCL dries water content.
Second step: the polyester dried and copolyamide resin slicer are joined spunbond life according to the ratio of 90: 10
Produce in the screw extruder hopper of line, be simultaneously introduced the epoxy resin that weight percent concentration is 1.0wt%
CYD-011 (Ba Ling petrochemical industry chemical company), sets each district temperature of extruder as 180 DEG C of a district, 2nd district
270 DEG C, three 300 DEG C of districts, four 3320 DEG C of districts, die head temperature 320 DEG C, the temperature of cross air blasting is 15 DEG C, leads
The speed stretching air is 800m/s, carries out the spunbond shaping of polyester/polyamide blend filament.
3rd step, is transported to acupuncture unit by above-mentioned spunbond forming polyester/polyamide blended filament web and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads.Wherein, the 2500 pieces/m of bestock of pre-needling machine, use lower thorn
Formula pricker movement locus, punch frequency is 400 thorns/min.First and the main acupuncture of second are respectively adopted thorn
Formula and lower thorn formula acupuncture movement locus, 5000 pieces/m of needle plate bestock, punch frequency is 1000 thorns/min.
4th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement into decrement
Carrying out decrement treatment in treatment trough, alkaline solution treatment conditions are: the weight percent concentration of NaOH is 2.0
Wt%, temperature 90 DEG C, time 5min, partial etching falls the polyester components of fiber surface, makes fiber surface
Roughening.
5th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through alkali decrement treatment into spun lacing
Machine is reinforced, and washes away the treatment fluid of fiber surface simultaneously, and water jet process condition is: 4 road spun lacing, each road
The liquid drugs injection pressure of water jet is respectively 70, and 80,90 and 100Bar.
6th step, enters one by the polyester/polyamide blend filament spunlace non-woven material obtained by described 5th step
Step is impregnated in the polydimethylsiloxane hydrophobic finishing liquid that weight percent concentration is 1.5wt%, carries out hydrophobic
Final finishing.
7th step, the polyester/polyamide blend filament non-woven material the 6th step prepared is sent in dehydrator and is dried
Dry, the temperature of dehydrator is 140 DEG C, and the polyester/polyamide blend filament obtaining fiber surface coarse is non-woven
Filtrate, its surface density is 250g/m2, Air permenbility is 28L/ (m2S), contact angle is 125 °, and fiber is straight
Footpath is 20 μm, and fiber surface roughness is 0.035 μm.
Embodiment 5
The first step: by polyester slice that the trade mark is SB500 (Sinopec Yizheng Fiber Optical plant Co., Ltd) and
Relative viscosity is that PA6 (Mei Da nylon chips limited company of the Xinhui of Guangdong Province) drying of 3.48 is to water content
For 30ppm.
Second step: the polyester dried and polyamide section are joined spunbond production according to the ratio of 10: 90
In the screw extruder hopper of line, set each district temperature of extruder as 150 DEG C of a district, two 180 DEG C of districts,
Three 270 DEG C of districts, four 320 DEG C of districts, die head temperature 300 DEG C, the temperature of cross air blasting is 10 DEG C, and drawing-off is empty
The speed of gas is 900m/s, carries out the spunbond shaping of polyester/polyamide blend filament.
3rd step, is transported to acupuncture unit by above-mentioned spunbond forming polyester/polyamide blended filament web and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads.Wherein, the 3000 pieces/m of bestock of pre-needling machine, use lower thorn
Formula pricker movement locus, punch frequency is 600 thorns/min.First and the main acupuncture of second are respectively adopted thorn
Formula and lower thorn formula acupuncture movement locus, 6000 pieces/m of needle plate bestock, punch frequency is 1200 thorns/min.
4th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement into decrement
Carrying out decrement treatment in treatment trough, acid solution treatment conditions are: pH value is 2, and capryl alcohol polyoxyethylene ether oozes
The weight percent concentration of agent is 2.5wt% thoroughly, and temperature is 90 DEG C, and the time is 5min, and partial etching falls fibre
The polyamide component in dimension table face, makes fiber surface be roughened.
5th step, sends the above-mentioned polyester/polyamide blend filament non-woven material through decrement treatment into spun-laced machine
Reinforcing, wash away the treatment fluid of fiber surface simultaneously, water jet process condition is: 4 road spun lacing, each road water
The liquid drugs injection pressure of tartar is respectively 70, and 80,90 and 100Bar.
6th step, enters one by the polyester/polyamide blend filament spunlace non-woven material obtained by described 5th step
Step be impregnated in the flourine-containing acrylate ester hydrophobic finishing liquid that weight percent concentration is 3.0wt%, carry out hydrophobic after
Arrange.
7th step, the polyester/polyamide blend filament non-woven material the 6th step prepared is sent in dehydrator and is dried
Dry, the temperature of dehydrator is 140 DEG C, and the polyester/polyamide blend filament obtaining fiber surface coarse is non-woven
Filtrate, its surface density is 250g/m2, Air permenbility is 25L/ (m2S), contact angle is 130 °, and fiber is straight
Footpath is 15 μm, and fiber surface roughness is 0.1 μm.
Claims (18)
1. a complex nonwoven filtering material, it is characterised in that fiber surface is because reinforcing through acupuncture and spun lacing and have
There is bending channel aperture structure；Every fiber in non-woven filter material includes in island shape random simultaneously
Polyester and two kinds of polymer component of polyamide.
2. complex nonwoven filtering material as claimed in claim 1, it is characterised in that its surface density is
150～250g/m2, Air permenbility is 25～40L/ (m2S), contact angle is 110 °～130 °, polyester/polyamides
The average diameter of amine blend filament is 15～35 μm, and the roughness of fiber surface is 0.025～0.1 μm.
3. complex nonwoven filtering material as claimed in claim 1, it is characterised in that described polyester and polyamide
Can be homopolymer, it is also possible to be copolymer.
4. complex nonwoven filtering material as claimed in claim 1, it is characterised in that described polyester and polyamide
Differences in viscosity be not more than 300Pa s.
5. complex nonwoven filtering material as claimed in claim 1, it is characterised in that in every fiber polyester and
The percentage by weight of polyamide is 1/99～99/1.
6. complex nonwoven filtering material as claimed in claim 5, it is characterised in that in every fiber polyester and
The percentage by weight of polyamide is 40/60～60/40.
7. complex nonwoven filtering material as claimed in claim 1, it is characterised in that raw material is except polyester and gathers
Outside amide blending resin, also include epoxy resin, maleic anhydride grafted polymer, polyester-polyamide copolymer
In at least one as compatilizer.
8. complex nonwoven filtering material as claimed in claim 7, it is characterised in that described compatilizer is at fiber
In weight percent concentration be 1.0wt%～5.0wt%.
9. a preparation method for the complex nonwoven filtering material described in claim 1-8 any one, its feature exists
In, specifically comprise the following steps that
The first step: polyester and polyamide are dried；
Second step: the polyester of drying, polyamide and/or compatilizer are proportionally added into product line of spinning viscose
Screw extruder in, carry out the spunbond shaping of polyester/polyamide blend filament；
3rd step: above-mentioned spunbond forming polyester/polyamide blended filament web is transported to acupuncture unit and carries out 1
The main pinprick reinforcement of road pre-needling and 2 roads；
4th step: be sent to subtract by the above-mentioned polyester/polyamide blend filament non-woven material through pinprick reinforcement
Carrying out decrement treatment in amount treatment trough, partial etching falls polyester or the polyamide component of fiber surface, makes fiber
Rough surface；
5th step: the above-mentioned polyester/polyamide blend filament non-woven material through decrement treatment is sent to spun lacing
Machine is reinforced, and washes away the treatment fluid of fiber surface simultaneously；
6th step: the polyester/polyamide blend filament non-woven material the 5th step prepared is sent in dehydrator and dried
Dry, obtain the non-woven filtrate of polyester/polyamide blend filament that fiber surface is coarse.
10. the preparation method of complex nonwoven filtering material as claimed in claim 9, it is characterised in that described the
After in one step, polyester and polyamide section are dried, its water content is not more than 40ppm.
The preparation method of 11. complex nonwoven filtering materials as claimed in claim 9, it is characterised in that described
Two step spunbond process are: each district temperature of extruder: a district 150～180 DEG C, two districts 180～270 DEG C, 3rd district
270～330 DEG C, four districts 320～340 DEG C；Die head temperature 300～320 DEG C；Cross air blasting temperature is 10～25 DEG C；Lead
Stretching air velocity is 500～900m/s.
The preparation method of 12. complex nonwoven filtering materials as claimed in claim 9, it is characterised in that described
Three step needling processes are: bestock 2000-3000 piece of pre-needling machine/m, use lower thorn formula pricker motion rail
Mark, punch frequency is 300-600 thorn/min；First and the main acupuncture of second are respectively adopted thorn formula and lower thorn
Formula acupuncture movement locus, needle plate bestock 4000-6000 piece/m, punch frequency is 800-1200 thorn/min.
The preparation method of 13. polyester/polyamide blend filament filtering materials as claimed in claim 9, its feature exists
In, the decrement process in described 4th step uses the polyamide component of acid solution etching fiber surface, and it processes
Condition is: pH value is 2～5, and temperature is 40～90 DEG C, and the time is 1～5min；Or employing alkaline solution
Etching fiber surface polyester component, its treatment conditions are: NaOH weight percent concentration be 0.5～
2.0wt%, temperature 80～90 DEG C, the time 1～5min.
The preparation method of 14. complex nonwoven filtering materials as claimed in claim 13, it is characterised in that in institute
State addition semi-annular jade pendant base succinate, butyl naphthalene sulfonate, middle carbon alcohol phosphate ester, capryl alcohol polyoxyethylene ether in treatment fluid
In at least one as penetrating agent, its weight percent concentration is 1.0～2.5wt%.
The preparation method of 15. complex nonwoven filtering materials as claimed in claim 9, it is characterised in that described
In five steps, the process conditions of spun lacing are: spun lacing number of channels is 2～4 roads, and liquid drugs injection pressure is 70～100Bar.
The preparation method of 16. complex nonwoven filtering materials as claimed in claim 9, it is characterised in that described
The temperature dried in six steps is 100～150 DEG C.
The preparation method of 17. complex nonwoven filtering materials as claimed in claim 9, it is characterised in that described
Polyester/polyamide blend filament spunlace non-woven material obtained by five steps is impregnated into the most further containing low
In the hydrophobic finishing liquid of surface energy substance, carry out hydrophobic Final finishing.
The preparation method of 18. complex nonwoven filtering materials as claimed in claim 17, it is characterised in that described
Low-surface energy substance in hydrophobic finishing liquid is politef, flourine-containing acrylate ester, fluorine carbon phosphate ester, poly-two
Any one of methylsiloxane and silicon fluoride apoplexy due to endogenous wind, its weight percent concentration in dressing liquid be 1.5～
3.0wt%.
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| CN111111319A (en) * | 2019-12-31 | 2020-05-08 | 南京际华三五二一环保科技有限公司 | Preparation method of ultra-clean discharge filter material |
| CN111335032A (en) * | 2020-04-20 | 2020-06-26 | 陕西科技大学 | Super-hydrophobic figured nylon superfine fiber non-woven fabric and preparation method thereof |
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| CN111501201A (en) * | 2020-04-20 | 2020-08-07 | 陕西科技大学 | Super-hydrophobic split-type superfine fiber non-woven fabric and preparation method thereof |
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| CN114768387B (en) * | 2022-04-07 | 2023-12-05 | 上海博格工业用布有限公司 | Super-hydrophobic filter felt and preparation method thereof |
| CN114875578A (en) * | 2022-04-08 | 2022-08-09 | 南通大学 | Degradable online spunlace composite filter material and preparation method thereof |
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