CN115124940B - Multilayer composite cotton for automobile air duct and preparation method thereof - Google Patents
Multilayer composite cotton for automobile air duct and preparation method thereof Download PDFInfo
- Publication number
- CN115124940B CN115124940B CN202210863479.6A CN202210863479A CN115124940B CN 115124940 B CN115124940 B CN 115124940B CN 202210863479 A CN202210863479 A CN 202210863479A CN 115124940 B CN115124940 B CN 115124940B
- Authority
- CN
- China
- Prior art keywords
- cotton
- parts
- hot air
- air duct
- sensitive adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 95
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000835 fiber Substances 0.000 claims abstract description 47
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 44
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000013329 compounding Methods 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 14
- 239000012943 hotmelt Substances 0.000 claims abstract description 9
- 238000009960 carding Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 49
- 239000000725 suspension Substances 0.000 claims description 48
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 46
- 238000003756 stirring Methods 0.000 claims description 38
- 239000003999 initiator Substances 0.000 claims description 34
- 239000003995 emulsifying agent Substances 0.000 claims description 33
- 239000008367 deionised water Substances 0.000 claims description 32
- 229910021641 deionized water Inorganic materials 0.000 claims description 32
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 27
- 239000000178 monomer Substances 0.000 claims description 27
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 27
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 26
- 229940126062 Compound A Drugs 0.000 claims description 23
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 23
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 23
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 22
- -1 acrylic ester Chemical class 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 21
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 18
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 16
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 16
- 230000001804 emulsifying effect Effects 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 12
- RQXXCWHCUOJQGR-UHFFFAOYSA-N 1,1-dichlorohexane Chemical compound CCCCCC(Cl)Cl RQXXCWHCUOJQGR-UHFFFAOYSA-N 0.000 claims description 11
- 239000000839 emulsion Substances 0.000 claims description 8
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 abstract description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 17
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 42
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 16
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 11
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 description 8
- BIMKUWCEBYOHHG-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;3-sulfanylpropanoic acid Chemical compound OC(=O)CCS.OCC(CO)(CO)CO BIMKUWCEBYOHHG-UHFFFAOYSA-N 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000007873 sieving Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000010025 steaming Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical group [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GNHQSAUHXKRQMC-UHFFFAOYSA-N benzene;chlorine Chemical group [Cl].C1=CC=CC=C1 GNHQSAUHXKRQMC-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/003—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- 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
- D04H1/48—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 in combination with at least one other method of consolidation
- D04H1/485—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 in combination with at least one other method of consolidation in combination with weld-bonding
-
- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
- D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2451/00—Presence of graft polymer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The application discloses a multilayer composite cotton for an automobile air duct and a preparation method thereof, and the multilayer composite cotton comprises the following processes: attaching a hot melt net film on one side of the needle punched hot air cotton, and superposing an aluminum foil; and (3) attaching a water-based acrylic pressure-sensitive adhesive on the other side of the needle punched hot air cotton, and performing thermal compounding to obtain the air duct composite cotton. According to the application, the hollow polyester staple fibers are adopted as the main material of the needle punched hot air cotton, so that the integral flame retardance, sound absorption and noise reduction performance of the needle punched hot air cotton are realized; the processes of pre-opening, cotton mixing, opening, carding and the like are utilized to ensure that 4D low-melting-point fibers are fully mixed with hollow 6D polyester fibers and hollow 3D polyester fibers; in the hot air forming process, 4D low-melting-point fibers are melted, fiber filaments are tightly adhered, the firmness is better, the generation of broken slag is greatly reduced, and the uniformity, flame retardant property and sound absorption property of the manufactured needled hot air cotton are ensured; greatly improves the breaking strength and breaking elongation.
Description
Technical Field
The application relates to the technical field of air duct cotton, in particular to multilayer composite cotton for an automobile air duct and a preparation method thereof.
Background
The multi-layer composite cotton for the automobile air duct is an important component in an automobile air supply system. The existing market has the defects that some goods on the market have too much scraps of sound-absorbing cotton, and the sound-absorbing cotton is mainly made of HDPE and foaming materials, so that a large amount of dense smoke and toxic and harmful gases are generated during combustion, and as time goes on, the surface layer materials age, harmful components and particles are separated out and can be exposed in an air duct, so that the whole air quality of an air duct system is not facilitated; the flame retardant added in the foaming material adopts a post-flame-retardant process, namely, the flame retardant is sprayed after wiredrawing, after the foaming material is subjected to water and placed for more than one year, the flame retardant effect is greatly reduced beyond the effective period, the failure of the flame retardant performance of the product is caused, the performance requirements related to automobiles are not met, and once the fire occurs, the fire situation can be increased by the fiber yarn, and serious harm is caused to the life and property safety of passengers; and the adhesive generally has no flame retardant property, which is unfavorable for realizing the whole flame retardant property of the product. Therefore, we propose a multilayer composite cotton for an automobile air duct and a preparation method thereof.
Disclosure of Invention
The application aims to provide multilayer composite cotton for an automobile air duct and a preparation method thereof, which are used for solving the problems in the background technology.
In order to solve the technical problems, the application provides the following technical scheme: the preparation method of the multilayer composite cotton for the automobile air duct comprises the following steps:
s1, attaching a hot melt net film on one side of needled hot air cotton, and superposing aluminum foil;
and S2, attaching a water-based acrylate pressure-sensitive adhesive on the other side of the needle punched hot air cotton, and performing thermal compounding to obtain the air duct composite cotton.
Furthermore, the water-based acrylic ester pressure-sensitive adhesive is arranged on the upper side of the compounding machine, the aluminum foil and the low-melting-point hot-melt net film are arranged on the lower side of the compounding machine, so that the production efficiency can be greatly improved, the temperatures of the upper side and the lower side are respectively controlled according to the A/B requirement, and the compounding speed of the product is controlled to be 5-8 m/min.
Further, the thermal compounding process comprises the following steps: the upper surface temperature is 80-120 ℃, and the lower surface temperature is 120-180 ℃.
If the upper surface temperature is lower than 80 ℃, the initial viscosity of the aqueous acrylic pressure-sensitive adhesive is reduced, and the adhesion between the aqueous acrylic pressure-sensitive adhesive and the needled hot air cotton is poor; above 120 ℃, the yellowing and aging of the aqueous acrylate pressure-sensitive adhesive can be caused, and the melting of the surface PET release paper can be caused. The lower surface temperature is 120-180 ℃, wherein 120 ℃ is the melting point of the hot melt net film, and the temperature exceeds 180 ℃ to cause yellowing and denaturation of the needle punched hot air cotton.
After the heat compounding and the shaping in the high temperature area, the product enters a cooling area and is cooled to normal temperature by using circulating condensate water.
Further, the melting point of the hot melt adhesive net is 120 ℃.
Further, the hot melt web was PES-W125FR purchased from Kunshan Toyo New Material Co., ltd, and had an average grammage of 41.1g/m 2 。
Further, in the prepared air duct composite cotton, the gram weight of the aluminum foil is 80-140 g/m 2 The gram weight of the water-based acrylic ester pressure-sensitive adhesive is 50-70 g/m 2 The gram weight of the needle punched hot air cotton is 180-250 g/m 2 。
Further, the needle punched hot air cotton is prepared by the following process:
mixing 4D low-melting-point fibers, hollow 6D polyester fibers and hollow 3D polyester fibers, and fully stirring; sequentially pre-opening, cotton mixing and opening; carding, lapping, needling and shaping, and rolling to obtain the needled hot air cotton.
Further, the number of the lapping layers is 6-12.
Further, the needling shaping process comprises the following steps: the frequency of the feeding machine is 20 Hz-25 Hz; the needling frequency was adjusted to 1000 needling/min using 2 4000 needle boards per meter, and the web output speed was 9.41 meters per minute.
Further, the needle punched hot air cotton comprises the following components in parts by mass: 35-50 parts of 4D low-melting-point fibers, 40-45 parts of hollow 6D polyester fibers and 40-45 parts of hollow 3D polyester fibers.
Further, the 4D low-melting fiber was 4080 low-melting fiber, product code LCF110-03, linear density 4.78De, breaking strength 3.66g, elongation at break 59.6% and average length 51.4mm.
Further, the hollow 6D polyester fiber is a flame-retardant hollow polyester staple fiber ZK923 purchased by China petrochemical instrumentation chemical fiber Limited liability company, and the specification is 6.67dtex multiplied by 60mm.
Further, the hollow 3D polyester fiber is flame-retardant hollow polyester staple fiber GN444 purchased by China petrochemical instrument and chemical fiber Limited liability company, and the specification is 3.33dtex multiplied by 65mm.
Further, the aqueous acrylate pressure-sensitive adhesive is prepared by the following process:
(1) Preparation of modified monomer:
1.1. mixing anhydrous n-butanol and gamma-glycidol ether oxypropyl trimethoxy silane serving as solvents, heating to 100-110 ℃, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature for 2-3 h to obtain a compound A;
the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidol ether oxypropyl trimethoxy silane is (0.8-2.0) 1; the proportion of the gamma-glycidoxypropyl trimethoxysilane and the anhydrous n-butanol is (8-10) g/100mL;
1.2. under the protection of nitrogen atmosphere, methylene dichloride is taken, acrylamide is added, and stirring and mixing are carried out at the temperature of minus 6 ℃ to minus 4 ℃; slowly adding the dichlorohexane solution of the compound A, heating to 50-55 ℃ after finishing adding in 2 hours, and reacting at constant temperature for 10-12 hours; rotary steaming, recrystallizing in chloroform, filtering, and drying to obtain compound B; mixing with vinyl triethoxysilane to obtain modified monomer;
the ratio of the acrylamide to the dichloromethane is (7.8-8.5) g/100mL; the molar ratio of the acrylamide to the compound A is 1 (2.0-2.2); the mass concentration of the dichlorohexane solution of the compound A is 9-12%; the mass ratio of the compound B to the vinyl triethoxysilane is (4-7) 1;
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at 270-350 rpm in a nitrogen atmosphere, heating to 75-80 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension;
taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at a rotating speed of 270-350 rpm in a nitrogen atmosphere, heating to 70-78 ℃ at the same time, and pre-emulsifying for 30min to obtain a shell suspension;
the nuclear layer suspension comprises the following components in parts by weight: 6 to 7 parts of styrene, 9 to 10 parts of methyl methacrylate, 0.45 to 0.50 part of emulsifier, 16 to 25 parts of deionized water and 0.08 to 0.10 part of initiator;
the shell layer suspension comprises the following components in parts by weight: 8.5 to 15.5 parts of butyl acrylate, 5 to 6 parts of isooctyl acrylate, 0.60 to 0.65 part of emulsifier, 1.8 to 3.0 parts of modified monomer, 26 to 39 parts of deionized water and 0.12 to 0.14 part of initiator;
the emulsifier is a mixture of sodium dodecyl sulfate and polyoxyethylene octyl phenol ether-10; the mass ratio is 2:1;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 270-350 rpm in nitrogen atmosphere, heating to 70-75 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 80-100 min; raising the temperature of the system to 78-82 ℃ and reacting for 80-120 min to obtain nuclear layer emulsion;
heating to 78-82 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 100-150 min after 2.5-3.0 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8-9 by using sodium bicarbonate solution to obtain the water-based acrylate pressure-sensitive adhesive.
The initiator is ammonium persulfate; the concentration of the aqueous initiator solution was 1wt%; the concentration of sodium bicarbonate solution was 5wt%; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1-2% of the total mass of the styrene and the methyl methacrylate.
Compared with the prior art, the application has the following beneficial effects:
1. according to the multilayer composite cotton for the automobile air duct and the preparation method thereof, the hollow polyester staple fibers (hollow 6D polyester fibers and hollow 3D polyester fibers) are adopted as the main materials of the needle punched hot air cotton, so that the overall flame retardance, sound absorption and noise reduction performance of the needle punched hot air cotton are realized; the processes of pre-opening, cotton mixing, opening, carding and the like are utilized to ensure that 4D low-melting-point fibers are fully mixed with hollow 6D polyester fibers and hollow 3D polyester fibers; in the hot air forming process, 4D low-melting-point fibers are melted, fiber filaments are tightly adhered, the firmness is better, the generation of broken slag is greatly reduced, and the uniformity, flame retardant property and sound absorption property of the manufactured needled hot air cotton are ensured; greatly improves the breaking strength and breaking elongation.
2. According to the multilayer composite cotton for the automobile air duct and the preparation method thereof, the aluminum foil is attached to the exposed surface of the needle punched hot air cotton by using the hot melt adhesive net, so that exposure of the needle punched hot air cotton in the air duct can be avoided, volatilization of organic matters is reduced, and the production process ensures that less waste is generated by the needle punched hot air cotton, the environmental pollution is low, and the air quality of the whole air duct system can be effectively improved; meanwhile, the heat radiation prevention function of the aluminum foil improves the heat preservation and heat insulation effects of the air duct composite cotton; and the water-based acrylate pressure-sensitive adhesive can cooperate with the non-exposed surface to bond, so that the flame retardant property of the prepared air duct composite cotton is improved.
3. According to the multilayer composite cotton for the automobile air duct and the preparation method thereof, a phosphate group in P- (3, 5-dichlorophenyl) phosphoric acid is utilized to react with an epoxy group in gamma-glycidoxypropyl trimethoxy silane, and then a benzene chlorine structure is reacted with an amino group in acrylamide to obtain a compound B; mixing the modified monomer with vinyl triethoxysilane to obtain a modified monomer, and mixing and crosslinking the modified monomer with (3-mercaptopropionic acid) pentaerythritol ester to generate the water-based acrylate pressure-sensitive adhesive with a core-shell structure; the silicon-oxygen structure on the molecular chain in the modifier is condensed in the film forming composite stage to generate a Si-O-Si structure to form a network structure, so that the movement of the molecular chain segment is limited, and the glass transition temperature and the thermal stability of the molecular chain segment are improved; the compound B has a double bond, is compounded with vinyl triethoxysilane, can participate in crosslinking, improves the crosslinking degree of the prepared water-based acrylate pressure-sensitive adhesive, and improves the initial decomposition temperature of the water-based acrylate pressure-sensitive adhesive; and the structure of element nitrogen, phosphorus, silicon, benzene ring, silicon oxide and the like is introduced, when in combustion, P=O is heated to generate phosphoric acid, the water-based acrylic ester pressure-sensitive adhesive is promoted to be dehydrated to form carbon, and the carbon residue with P-O-C groups can be generated by reacting with the water-based acrylic ester pressure-sensitive adhesive, so that the expansion of the carbon residue is promoted by cooperating with the release of nitrogen-oxygen flame-retardant gas, the formed carbon residue layer is strengthened by the silicon oxide, the heat insulation and oxygen isolation capability of the carbon residue layer are improved, and the flame retardant property of the acrylic resin is effectively improved.
4. According to the multilayer composite cotton for the automobile air duct and the preparation method thereof, the problem of oxygen polymerization inhibition in the water-based acrylate pressure-sensitive adhesive system can be relieved by adding the pentaerythritol (3-mercaptopropionic acid) ester in the preparation stage; disulfide bonds can be generated, clicking reaction can be carried out with double bonds, composite film forming of the aqueous acrylic ester pressure-sensitive adhesive on the needled hot air cotton can be promoted, and the cohesiveness of the two can be improved; the monomer can be synergistically modified to jointly generate flame-retardant gas, so that the oxygen concentration around the carbon residue layer is diluted, and the generation of porous carbon residue is promoted; a synergistic flame retardant effect is achieved in the gas phase.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, serve to explain the application. In the drawings:
FIG. 1 is a product diagram of an air duct composite cotton in the present application;
FIG. 2 is a product drawing of needled hot air cotton in accordance with the present application;
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
(1) Preparation of needle punched hot air cotton:
mixing 35 parts of 4D low-melting-point fibers, 40 parts of hollow 6D polyester fibers and 40 parts of hollow 3D polyester fibers, and fully stirring; sequentially pre-opening, cotton mixing and opening; carding, lapping, 6 layers of lapping layers, needling and shaping, wherein the process comprises the following steps: the frequency of the feeder is 20Hz; 2 4000 needle plates per m are adopted, the needling frequency is adjusted to 1000 needling/min, and the output speed of the fiber web is 9.41m/min; winding to obtain needle punched hot air cotton;
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
mixing anhydrous n-butanol and gamma-glycidol ether oxypropyl trimethoxy silane serving as solvents, heating to 100 ℃, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature for 2 hours to obtain a compound A; the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidoxypropyl trimethoxysilane is 0.8:1; the proportion of the gamma-glycidoxypropyl trimethoxysilane and the anhydrous n-butanol is 8g/100mL;
taking dichloromethane under the protection of nitrogen atmosphere, adding acrylamide, and stirring and mixing at the temperature of-4 ℃; slowly adding the dichlorohexane solution of the compound A, heating to 50 ℃ after finishing adding in 2 hours, and reacting at constant temperature for 10 hours; rotary steaming, recrystallizing in chloroform, filtering, and drying to obtain compound B; mixing with vinyl triethoxysilane to obtain modified monomer; the ratio of the acrylamide to the methylene dichloride is 7.8g/100mL; the molar ratio of the acrylamide to the compound A is 1:2.0; the mass concentration of the dichlorohexane solution of the compound A is 9%; the mass ratio of the compound B to the vinyl triethoxysilane is 4:1;
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at 270rpm in a nitrogen atmosphere, heating to 75 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at 270rpm in a nitrogen atmosphere, and simultaneously heating to 70 ℃ and pre-emulsifying for 30min to obtain a shell suspension; the nuclear layer suspension comprises the following components in parts by weight: 6 parts of styrene, 9 parts of methyl methacrylate, 0.45 part of emulsifier, 16 parts of deionized water and 0.08 part of initiator; the shell layer suspension comprises the following components in parts by weight: 8.5 parts of butyl acrylate, 5 parts of isooctyl acrylate, 0.60 part of emulsifier, 1.8 parts of modified monomer, 26 parts of deionized water and 0.12 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 270rpm in nitrogen atmosphere, heating to 70 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 80 min; heating the system to 78 ℃ and reacting for 80min to obtain nuclear layer emulsion;
heating to 78 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 100min after 2.5 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1% of the total mass of the styrene and the methyl methacrylate;
(3) Preparation of air duct composite cotton:
attaching a hot melt net film on one side of the needle punched hot air cotton, and superposing an aluminum foil; the other side of the needle punched hot air cotton is adhered with a water-based acrylic pressure-sensitive adhesive, and the heat compounding and heat compounding process comprises the following steps: the upper surface temperature is 80 ℃, and the lower surface temperature is 120 ℃ to obtain air duct composite cotton;
the gram weight of the aluminum foil is 80g/m 2 The gram weight of the water-based acrylic ester pressure-sensitive adhesive is 50g/m 2 The gram weight of the needle punched hot air cotton is 180g/m 2 。
Example 2
(1) Preparation of needle punched hot air cotton:
42 parts of 4D low-melting-point fibers, 42 parts of hollow 6D polyester fibers and 42 parts of hollow 3D polyester fibers are taken and mixed, and fully stirred; sequentially pre-opening, cotton mixing and opening; carding, lapping, 9 layers of lapping layers, needling and shaping, wherein the process comprises the following steps: the frequency of the feeder is 22Hz; 2 4000 needle plates per m are adopted, the needling frequency is adjusted to 1000 needling/min, and the output speed of the fiber web is 9.41m/min; winding to obtain needle punched hot air cotton;
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
mixing anhydrous n-butanol and gamma-glycidoxypropyl trimethoxy silane serving as solvents, heating to 105 ℃, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature for 2.5h to obtain a compound A; the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidoxypropyl trimethoxysilane is 1.4:1; the proportion of the gamma-glycidoxypropyl trimethoxysilane and the anhydrous n-butanol is 9g/100mL;
taking dichloromethane under the protection of nitrogen atmosphere, adding acrylamide, and stirring and mixing at the temperature of-5 ℃; slowly adding the dichlorohexane solution of the compound A, heating to 52 ℃ after finishing adding in 2 hours, and reacting at constant temperature for 11 hours; rotary steaming, recrystallizing in chloroform, filtering, and drying to obtain compound B; mixing with vinyl triethoxysilane to obtain modified monomer; the ratio of the acrylamide to the methylene dichloride is 8g/100mL; the molar ratio of the acrylamide to the compound A is 1:2.1; the mass concentration of the dichlorohexane solution of the compound A is 10%; the mass ratio of the compound B to the vinyl triethoxysilane is 5:1;
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at a rotating speed of 300rpm in a nitrogen atmosphere, heating to 78 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at a rotating speed of 300rpm in a nitrogen atmosphere, and simultaneously heating to 75 ℃ and pre-emulsifying for 30min to obtain a shell suspension; the nuclear layer suspension comprises the following components in parts by weight: 6.5 parts of styrene, 9.5 parts of methyl methacrylate, 0.48 part of an emulsifier, 20 parts of deionized water and 0.09 part of an initiator; the shell layer suspension comprises the following components in parts by weight: 12 parts of butyl acrylate, 5.5 parts of isooctyl acrylate, 0.62 part of emulsifier, 2.4 parts of modified monomer, 32 parts of deionized water and 0.13 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 300rpm in nitrogen atmosphere, heating to 72 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 90 min; heating the system to 80 ℃ and reacting for 100min to obtain core-layer emulsion;
heating to 80 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 120min after 2.7 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8.5 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1.5% of the total mass of the styrene and the methyl methacrylate;
(3) Preparation of air duct composite cotton:
attaching a hot melt net film on one side of the needle punched hot air cotton, and superposing an aluminum foil; and (3) attaching a water-based acrylate pressure-sensitive adhesive on the other side of the needle punched hot air cotton, and performing thermal compounding to obtain air duct composite cotton, wherein the thermal compounding process comprises the following steps of: the upper surface temperature is 100 ℃, and the lower surface temperature is 150 ℃ to obtain air duct composite cotton;
the gram weight of the aluminum foil is 110g/m 2 The gram weight of the water-based acrylic ester pressure-sensitive adhesive is 60g/m 2 The gram weight of the needle punched hot air cotton is 215g/m 2 。
Example 3
(1) Preparation of needle punched hot air cotton:
mixing 50 parts of 4D low-melting-point fibers, 45 parts of hollow 6D polyester fibers and 45 parts of hollow 3D polyester fibers, and fully stirring; sequentially pre-opening, cotton mixing and opening; carding, lapping, wherein the lapping layer number is 12, and the process comprises the following steps of: the frequency of the feeder is 25Hz; 2 4000 needle plates per m are adopted, the needling frequency is adjusted to 1000 needling/min, and the output speed of the fiber web is 9.41m/min; winding to obtain needle punched hot air cotton;
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
mixing anhydrous n-butanol and gamma-glycidol ether oxypropyl trimethoxy silane serving as solvents, heating to 110 ℃, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature for 3 hours to obtain a compound A; the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidoxypropyl trimethoxysilane is 2.0:1; the proportion of the gamma-glycidoxypropyl trimethoxysilane and the anhydrous n-butanol is 10g/100mL;
taking dichloromethane under the protection of nitrogen atmosphere, adding acrylamide, and stirring and mixing at the temperature of minus 6 ℃; slowly adding the dichlorohexane solution of the compound A, heating to 55 ℃ after finishing adding in 2 hours, and reacting at constant temperature for 12 hours; rotary steaming, recrystallizing in chloroform, filtering, and drying to obtain compound B; mixing with vinyl triethoxysilane to obtain modified monomer; the ratio of the acrylamide to the methylene dichloride is 8.5g/100mL; the molar ratio of the acrylamide to the compound A is 1:2.2; the mass concentration of the dichlorohexane solution of the compound A is 12%; the mass ratio of the compound B to the vinyl triethoxysilane is 7:1;
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at a rotating speed of 350rpm in a nitrogen atmosphere, heating to 80 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at a rotating speed of 350rpm in a nitrogen atmosphere, and simultaneously heating to 78 ℃ and pre-emulsifying for 30min to obtain a shell suspension; the nuclear layer suspension comprises the following components in parts by weight: 7 parts of styrene, 10 parts of methyl methacrylate, 0.50 part of emulsifier, 25 parts of deionized water and 0.10 part of initiator; the shell suspension comprises the following components by weight of 15.5 parts of butyl acrylate, 6 parts of isooctyl acrylate, 0.65 part of emulsifier, 3.0 parts of modified monomer, 39 parts of deionized water and 0.14 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at a rotating speed of 350rpm in a nitrogen atmosphere, heating to 75 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 100min; heating the system to 82 ℃ and reacting for 120min to obtain core-layer emulsion;
heating to 82 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 150min after 3.0 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 9 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 2% of the total mass of the styrene and the methyl methacrylate;
(3) Preparation of air duct composite cotton:
attaching a hot melt net film on one side of the needle punched hot air cotton, and superposing an aluminum foil; the other side of the needle punched hot air cotton is adhered with a water-based acrylic pressure-sensitive adhesive, and the heat compounding and heat compounding process comprises the following steps: the upper surface temperature is 120 ℃, and the lower surface temperature is 180 ℃ to obtain air duct composite cotton;
the gram weight of the aluminum foil is 140g/m 2 The gram weight of the water-based acrylic ester pressure-sensitive adhesive is 70g/m 2 The gram weight of the needle punched hot air cotton is 250g/m 2 。
Comparative example 1
(3) Preparation of air duct composite cotton:
and (3) attaching a water-based acrylic pressure-sensitive adhesive to one side of the needle punched hot air cotton, and performing thermal compounding to obtain the air duct composite cotton.
The processes (1) and (2) are the same as in example 1.
Comparative example 2
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
vinyl triethoxysilane is taken as a modified monomer; taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at 270rpm in a nitrogen atmosphere, heating to 75 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at 270rpm in a nitrogen atmosphere, and simultaneously heating to 70 ℃ and pre-emulsifying for 30min to obtain a shell suspension; the nuclear layer suspension comprises the following components in parts by weight: 6 parts of styrene, 9 parts of methyl methacrylate, 0.45 part of emulsifier, 16 parts of deionized water and 0.08 part of initiator; the shell layer suspension comprises the following components in parts by weight: 8.5 parts of butyl acrylate, 5 parts of isooctyl acrylate, 0.60 part of emulsifier, 1.8 parts of modified monomer, 26 parts of deionized water and 0.12 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 270rpm in nitrogen atmosphere, heating to 70 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 80 min; heating the system to 78 ℃ and reacting for 80min to obtain nuclear layer emulsion;
heating to 78 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 100min after 2.5 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1% of the total mass of the styrene and the methyl methacrylate;
the processes (1) and (3) were the same as in example 1.
Comparative example 3
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
mixing anhydrous n-butanol and gamma-glycidol ether oxypropyl trimethoxy silane serving as solvents, heating to 100 ℃, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature for 2 hours to obtain a compound A; the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidoxypropyl trimethoxysilane is 0.8:1; the proportion of the gamma-glycidoxypropyl trimethoxysilane and the anhydrous n-butanol is 8g/100mL;
taking dichloromethane under the protection of nitrogen atmosphere, adding acrylamide, and stirring and mixing at the temperature of-4 ℃; slowly adding the dichlorohexane solution of the compound A, heating to 50 ℃ after finishing adding in 2 hours, and reacting at constant temperature for 10 hours; rotary steaming, recrystallizing in chloroform, suction filtering, and drying to obtain modified monomer; the ratio of the acrylamide to the methylene dichloride is 7.8g/100mL; the molar ratio of the acrylamide to the compound A is 1:2.0; the mass concentration of the dichlorohexane solution of the compound A is 9%;
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at 270rpm in a nitrogen atmosphere, heating to 75 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, stirring at 270rpm in a nitrogen atmosphere, and simultaneously heating to 70 ℃ and pre-emulsifying for 30min to obtain a shell suspension; the nuclear layer suspension comprises the following components in parts by weight: 6 parts of styrene, 9 parts of methyl methacrylate, 0.45 part of emulsifier, 16 parts of deionized water and 0.08 part of initiator; the shell layer suspension comprises the following components in parts by weight: 8.5 parts of butyl acrylate, 5 parts of isooctyl acrylate, 0.60 part of emulsifier, 1.8 parts of modified monomer, 26 parts of deionized water and 0.12 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 270rpm in nitrogen atmosphere, heating to 70 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 80 min; heating the system to 78 ℃ and reacting for 80min to obtain nuclear layer emulsion;
heating to 78 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 100min after 2.5 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1% of the total mass of the styrene and the methyl methacrylate;
the processes (1) and (3) were the same as in example 1.
Comparative example 4
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
taking styrene, methyl methacrylate, an emulsifier and deionized water, stirring at 270rpm in a nitrogen atmosphere, heating to 75 ℃ at the same time, and pre-emulsifying for 30min to obtain a nuclear layer suspension;
taking butyl acrylate, isooctyl acrylate, an emulsifier and deionized water, stirring at 270rpm in a nitrogen atmosphere, and simultaneously heating to 70 ℃ for pre-emulsifying for 30min to obtain a shell suspension;
the nuclear layer suspension comprises the following components in parts by weight: 6 parts of styrene, 9 parts of methyl methacrylate, 0.45 part of emulsifier, 16 parts of deionized water and 0.08 part of initiator;
the shell layer suspension comprises the following components in parts by weight: 8.5 parts of butyl acrylate, 5 parts of isooctyl acrylate, 0.60 part of emulsifier, 26 parts of deionized water and 0.12 part of initiator;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring at 270rpm in nitrogen atmosphere, heating to 70 ℃, dropwise adding the rest mass component of initiator aqueous solution, and finishing dropwise adding within 80 min; heating the system to 78 ℃ and reacting for 80min to obtain nuclear layer emulsion;
heating to 78 ℃, slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and reacting for 100min after 2.5 h; sieving with a 200-mesh sieve, and regulating the pH of the system to 8 by using sodium bicarbonate solution to obtain a water-based acrylate pressure-sensitive adhesive; the addition amount of the pentaerythritol (3-mercaptopropionic acid) is 1% of the total mass of the styrene and the methyl methacrylate;
the processes (1) and (3) were the same as in example 1.
Experiment
Taking the air duct composite cotton obtained in examples 1-3 and comparative examples 1-4, preparing samples, respectively detecting the performances of the samples and recording the detection results:
combustion characteristics experiment: the experimental basis is GB 8410-2006, GB/T2406.2-2009;
TVOC (C6-C16) test experiments are carried out on the sample, and the experimental basis is Q/FT A259-2017;
from the data in the above table, the following conclusions can be clearly drawn:
the air duct composite cotton obtained in examples 1 to 3 was compared with the air duct composite cotton obtained in comparative examples 1 to 4, and as a result of the detection,
compared with comparative examples 1-5, the air duct composite cotton obtained in examples 1-3 has more excellent performance in horizontal combustion, oxygen index and TVOC experimental data, which fully demonstrates that the application realizes the improvement of the flame retardant property and air quality of the air duct composite cotton;
compared with the air duct composite cotton obtained in the example 1, the preparation process of the water-based acrylic ester pressure-sensitive adhesive and the components used in the air duct composite cotton are different, and the performance of the air duct composite cotton on horizontal combustion, oxygen index and TVOC experimental data is deteriorated; the preparation process of the water-based acrylic acid ester pressure-sensitive adhesive and the arrangement of the components used by the preparation process can promote the improvement of the flame retardant property and the air quality of the air duct composite cotton.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process method article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process method article or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and the present application is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present application has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (4)
1. A preparation method of multilayer composite cotton for an automobile air duct is characterized by comprising the following steps of: the method comprises the following steps:
s1, attaching a hot melt net film on one side of needled hot air cotton, and superposing aluminum foil;
s2, attaching a water-based acrylate pressure-sensitive adhesive on the other side of the needle punched hot air cotton, and performing thermal compounding to obtain air duct composite cotton;
the needle punched hot air cotton is prepared by the following process:
mixing 4D low-melting-point fibers, hollow 6D polyester fibers and hollow 3D polyester fibers, and fully stirring; sequentially pre-opening, cotton mixing and opening; carding, lapping, needling and shaping, and rolling to obtain needled hot air cotton;
the aqueous acrylic ester pressure-sensitive adhesive is prepared by the following process:
(1) Preparation of modified monomer:
mixing anhydrous n-butanol and gamma-glycidol ether oxypropyl trimethoxy silane as solvents, heating, stirring, slowly adding P- (3, 5-dichlorophenyl) phosphoric acid, and reacting at constant temperature to obtain a compound A;
under the protection of nitrogen atmosphere, methylene dichloride is taken, acrylamide is added, and stirring and mixing are carried out at low temperature; slowly adding a dichlorohexane solution of the compound A, and heating to react to obtain a chemical B; mixing the compound B with vinyl triethoxysilane to obtain a modified monomer;
(2) Preparation of a water-based acrylate pressure-sensitive adhesive:
pre-emulsifying styrene, methyl methacrylate, an emulsifier and deionized water to obtain a nuclear layer suspension; taking butyl acrylate, isooctyl acrylate, an emulsifier, a modified monomer and deionized water, and pre-emulsifying to obtain a shell suspension;
adding 1/3 mass component of initiator aqueous solution into the nuclear layer suspension, stirring, heating, and dropwise adding the rest mass component of initiator aqueous solution; heating to react to obtain a nuclear layer emulsion; slowly adding shell suspension, (3-mercaptopropionic acid) pentaerythritol ester, and heating to react to obtain a water-based acrylate pressure-sensitive adhesive;
the molar ratio of the acrylamide to the compound A is 1 (2.0-2.2); the mass ratio of the compound B to the vinyl triethoxysilane is (4-7) 1;
the molar ratio of the P- (3, 5-dichlorophenyl) phosphoric acid and the gamma-glycidol ether oxypropyl trimethoxy silane is (0.8-2.0) 1;
the nuclear layer suspension comprises the following components in parts by weight: 6 to 7 parts of styrene, 9 to 10 parts of methyl methacrylate, 0.45 to 0.50 part of emulsifier, 16 to 25 parts of deionized water and 0.08 to 0.10 part of initiator;
the shell layer suspension comprises the following components in parts by weight: 8.5 to 15.5 parts of butyl acrylate, 5 to 6 parts of isooctyl acrylate, 0.60 to 0.65 part of emulsifier, 1.8 to 3.0 parts of modified monomer, 26 to 39 parts of deionized water and 0.12 to 0.14 part of initiator.
2. The method for preparing the multi-layer composite cotton for the automobile air duct, which is characterized by comprising the following steps of: the gram weight of the aluminum foil is 80-140 g/square meter, the gram weight of the water-based acrylic ester pressure-sensitive adhesive is 50-70 g/square meter, and the gram weight of the needle punched hot air cotton is 180-250 g/square meter.
3. The method for preparing the multi-layer composite cotton for the automobile air duct, which is characterized by comprising the following steps of: the needle punched hot air cotton comprises the following components in parts by mass: 35-50 parts of 4D low-melting-point fibers, 40-45 parts of hollow 6D polyester fibers and 40-45 parts of hollow 3D polyester fibers.
4. A multi-layer composite cotton for an automobile air duct produced by the production method according to any one of claims 1 to 3.
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