CN115287021A - Water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive and preparation method thereof - Google Patents
Water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive and preparation method thereof Download PDFInfo
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- CN115287021A CN115287021A CN202210803485.2A CN202210803485A CN115287021A CN 115287021 A CN115287021 A CN 115287021A CN 202210803485 A CN202210803485 A CN 202210803485A CN 115287021 A CN115287021 A CN 115287021A
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- water
- sensitive adhesive
- resistant
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- monomer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 67
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 title claims abstract description 65
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000178 monomer Substances 0.000 claims abstract description 53
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 38
- 239000008367 deionised water Substances 0.000 claims abstract description 14
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 14
- -1 allyloxy hydroxypropyl sodium Chemical compound 0.000 claims abstract description 13
- 239000012986 chain transfer agent Substances 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 239000007800 oxidant agent Substances 0.000 claims abstract description 9
- 238000004132 cross linking Methods 0.000 claims abstract description 8
- 229920000768 polyamine Polymers 0.000 claims abstract description 8
- 230000001590 oxidative effect Effects 0.000 claims abstract description 6
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000000839 emulsion Substances 0.000 claims description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 22
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical group CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 12
- 125000005336 allyloxy group Chemical group 0.000 claims description 11
- 239000003999 initiator Substances 0.000 claims description 11
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 10
- STMDPCBYJCIZOD-UHFFFAOYSA-N 2-(2,4-dinitroanilino)-4-methylpentanoic acid Chemical compound CC(C)CC(C(O)=O)NC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O STMDPCBYJCIZOD-UHFFFAOYSA-N 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- DOUHZFSGSXMPIE-UHFFFAOYSA-N hydroxidooxidosulfur(.) Chemical compound [O]SO DOUHZFSGSXMPIE-UHFFFAOYSA-N 0.000 claims description 9
- IBDVWXAVKPRHCU-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethyl 3-oxobutanoate Chemical group CC(=O)CC(=O)OCCOC(=O)C(C)=C IBDVWXAVKPRHCU-UHFFFAOYSA-N 0.000 claims description 8
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical group OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- XDAQIHYNWBWJBV-UHFFFAOYSA-N CCC(CCC(C)C)OC(C(S)=C)=O Chemical group CCC(CCC(C)C)OC(C(S)=C)=O XDAQIHYNWBWJBV-UHFFFAOYSA-N 0.000 claims description 7
- VFTKIWJJPDJBKD-UHFFFAOYSA-N OCCC[Na] Chemical compound OCCC[Na] VFTKIWJJPDJBKD-UHFFFAOYSA-N 0.000 claims description 7
- YOQLRQUGJROXRV-UHFFFAOYSA-N benzenecarbodithioic acid;4-cyanopentanoic acid Chemical group N#CC(C)CCC(O)=O.SC(=S)C1=CC=CC=C1 YOQLRQUGJROXRV-UHFFFAOYSA-N 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 claims description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 7
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 5
- JBTWBPVTDXPHFG-UHFFFAOYSA-L disodium;2-hydroxyacetate Chemical group [Na+].[Na+].OCC([O-])=O.OCC([O-])=O JBTWBPVTDXPHFG-UHFFFAOYSA-L 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 4
- WQPMYSHJKXVTME-UHFFFAOYSA-N 3-hydroxypropane-1-sulfonic acid Chemical compound OCCCS(O)(=O)=O WQPMYSHJKXVTME-UHFFFAOYSA-N 0.000 claims description 4
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 4
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- IAXXETNIOYFMLW-COPLHBTASA-N [(1s,3s,4s)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@]2(C)[C@@H](OC(=O)C(=C)C)C[C@H]1C2(C)C IAXXETNIOYFMLW-COPLHBTASA-N 0.000 claims description 4
- 229940119545 isobornyl methacrylate Drugs 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 239000002313 adhesive film Substances 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 3
- 238000010526 radical polymerization reaction Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000003995 emulsifying agent Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 5
- OCYSEZIKMPGIHK-UHFFFAOYSA-N 2-hydroxyacetic acid;sodium Chemical compound [Na].[Na].OCC(O)=O OCYSEZIKMPGIHK-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 3
- 150000004712 monophosphates Chemical class 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229960001124 trientine Drugs 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- DPWVGJYHBRTXIS-UHFFFAOYSA-N C(CS)(=O)OC(CC)CCC(C)C Chemical group C(CS)(=O)OC(CC)CCC(C)C DPWVGJYHBRTXIS-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical group CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer 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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1802—C2-(meth)acrylate, e.g. ethyl (meth)acrylate
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- 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
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
-
- 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
- C08F4/00—Polymerisation catalysts
- C08F4/40—Redox systems
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C08F2438/00—Living radical polymerisation
- C08F2438/03—Use of a di- or tri-thiocarbonylthio compound, e.g. di- or tri-thioester, di- or tri-thiocarbamate, or a xanthate as chain transfer agent, e.g . Reversible Addition Fragmentation chain Transfer [RAFT] or Macromolecular Design via Interchange of Xanthates [MADIX]
Abstract
The invention discloses a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive and a preparation method thereof, wherein the waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive comprises the following raw materials in parts by weight: 1.5-15 parts of macromolecular surface active cross-linking agent, 100-150 parts of deionized water, 260-300 parts of acrylate monomer, 1.5-15 parts of functional monomer, 1.5-15 parts of cross-linking monomer, 0.06-1.2 parts of chain transfer agent, 0.9-3 parts of oxidant, 0.6-2.4 parts of reducing agent and 0.5-10 parts of polyamine; the macromolecular surface active cross-linking agent is allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer. The invention synthesizes the macromolecular surface active cross-linking agent by RAFT active free radical polymerization, has good emulsifying monomer performance, can independently use the emulsifying monomer, is a macromolecular polymer with large molecular weight, is not easy to migrate to the surface of an adhesive film after aging, and ensures the bonding strength and the water resistance of the pressure-sensitive adhesive.
Description
Technical Field
The invention relates to the technical field of pressure-sensitive adhesives, in particular to a water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive and a preparation method thereof.
Background
The acrylic emulsion pressure-sensitive adhesive has the characteristics of wide sources, easy preparation, excellent bonding performance, strong adhesion and wide bonding surface, is the most widely applied variety with the highest yield in the pressure-sensitive adhesive, and is the polymer emulsion adhesive which is developed most rapidly in China. However, the acrylic emulsion pressure-sensitive adhesive has the defects of relatively poor water resistance, cold resistance, heat resistance, weather resistance and stability, and is difficult to replace solvent-based pressure-sensitive adhesives.
CN112080230A adopts an oxidant-reducing agent as an initiating system, the oxidant is water-soluble persulfate, the reducing agent is water-soluble sodium bisulfite, allyloxy nonyl phenol polyoxyethylene ether monophosphate is used as an emulsifier, organic silicon is crosslinked, the water resistance is improved, the water-soluble electrolyte is not reduced by adopting the water-soluble oxidant, in addition, although a reactive micromolecule emulsifier is adopted, part of the reactive emulsifier in the system is not copolymerized and can migrate to the surface of the adhesive film, the water resistance and weather resistance of the adhesive are still not ideal, the molecular weight of the adhesive is only improved by the organic silicon crosslinking agent, main factors influencing the water resistance and weather resistance of the adhesive are not changed, and therefore the improvement of the water resistance and weather resistance of the adhesive film is not obvious.
Disclosure of Invention
The invention aims to solve the technical problem that the existing acrylate pressure-sensitive adhesive has poor water resistance and weather resistance.
Therefore, in a first aspect, the invention provides a water-resistant and weather-resistant water-based acrylate pressure-sensitive adhesive, which comprises the following raw materials in parts by weight: 1.5-15 parts of macromolecular surface active cross-linking agent, 100-150 parts of deionized water, 260-300 parts of acrylate monomer, 1.5-15 parts of functional monomer, 1.5-15 parts of cross-linking monomer, 0.06-1.2 parts of chain transfer agent, 0.9-3 parts of oxidant, 0.6-2.4 parts of reducing agent and 0.5-10 parts of polyamine;
the macromolecular surface active cross-linking agent is allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer.
Further, the preparation method of the macromolecular surface active cross-linking agent is as follows:
mixing ethyl acrylate, an RAFT chain transfer agent, absolute ethyl alcohol and an initiator, introducing high-purity nitrogen, reacting for 12-48 h at 60 ℃, adding allyl glycidyl ether and the initiator, introducing nitrogen, reacting for 12-48 h at 60 ℃, adding allyloxy hydroxypropyl sodium sulfonate and the initiator, reacting for 12-48 h at 65 ℃, vacuumizing at 65 ℃ to remove a solvent, and obtaining the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent.
Further, the mass ratio of ethyl acrylate, RAFT chain transfer agent, ethanol, allyl glycidyl ether, sodium allyloxy hydroxypropyl sulfonate and initiator is 10-40: 0.1 to 2:20 to 80:30 to 60 percent: 25 to 150:0.4 to 4.
Further, the RAFT chain transfer agent is 4-cyanovaleric acid dithiobenzoic acid;
and/or the initiator is azobisisobutyrimidazoline.
Further, the sodium allyloxy hydroxypropyl sulfonate used in the preparation method of the macromolecular surface active cross-linking agent is a sodium allyloxy hydroxypropyl sulfonate solution with an active content of 40%.
Further, the acrylate monomer is one or more of butyl acrylate, isooctyl acrylate, ethyl acrylate, methyl methacrylate, isobornyl acrylate and isobornyl methacrylate;
and/or the functional monomer is beta-acryloxypropionic acid;
and/or the crosslinking monomer is acetoacetoxy ethyl methacrylate;
and/or the chain transfer agent is 3-isooctyl thioglycolate;
and/or the oxidizing agent is tert-butyl hydroperoxide;
and/or the reducing agent is disodium glycolate sulfinate.
In a second aspect, the invention provides a preparation method of a water-resistant and weather-resistant water-based acrylate pressure-sensitive adhesive, which comprises the following steps:
(1) Mixing a high-molecular surface active cross-linking agent, part of deionized water, an acrylate monomer, a functional monomer, a cross-linking monomer, a chain transfer agent and an oxidant, and stirring at a high speed for emulsification to obtain a monomer pre-emulsion;
(2) Heating the residual deionized water to 60-65 ℃, adding part of the monomer pre-emulsion prepared in the step (1) and part of the reducing agent, reacting for 20min, dropwise adding the residual monomer pre-emulsion and the reducing agent within 2-5 h, preserving heat for 1h at 65 ℃ after dropwise adding, then cooling to below 45 ℃, adding a pH value regulator to adjust the pH value of the emulsion to 7-8, stirring uniformly, filtering and discharging to obtain the water-based acrylate sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with polyamine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive.
Further, part of the monomer pre-emulsion in the step (2) accounts for 1-15% of the total mass of the monomer pre-emulsion prepared in the step (1).
Further, the pH value regulator is a silicone regulator. Specifically Wacker BS-168.
Further, the polyamine is one or more of ethylenediamine, hexamethylenediamine, diethylenetriamine and triethylene tetramine.
The technical scheme provided by the invention has the following advantages:
1. according to the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive, RAFT active free radical polymerization is adopted to synthesize a high-molecular surface active cross-linking agent, and an emulsifying monomer is subjected to soap-free emulsion polymerization to prepare the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive. The synthesized high molecular surface active cross-linking agent has good emulsifying monomer performance, can be independently used, is a high molecular polymer with large molecular weight, is not easy to migrate to the surface of an adhesive film after aging, and ensures the bonding strength and the water resistance of the pressure-sensitive adhesive.
2. According to the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive provided by the invention, the macromolecular surface active cross-linking agent is synthesized by RAFT (reversible addition-fragmentation chain transfer) active free radical polymerization, contains an epoxy group with reactivity, can react with polyamine at normal temperature with an acetoacetic acid group on a molecular chain of an acrylate adhesive to form a whole through cross-linking, is good in compatibility with the adhesive and is not easy to migrate to the surface of an adhesive film, the influence of an emulsifier on the performance of the pressure-sensitive adhesive is greatly reduced, and the water resistance and the weather resistance of the water-based acrylate pressure-sensitive adhesive are improved.
3. The invention adopts an oxidation-reduction initiator system, namely an oil-soluble initiator-water-soluble reducing agent, can reduce or eliminate the existence of water-soluble electrolyte in the emulsion and improve the water resistance and weather resistance of the water-soluble acrylate pressure-sensitive adhesive.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive, which is prepared by the following specific steps:
s1, preparing a macromolecular surface active cross-linking agent
Adding 30g of ethyl acrylate, 55g of ethanol, 0.6g of 4-cyanovaleric acid dithiobenzoic acid and 0.3g of azobisisobutyrimidazoline into a reactor, introducing high-purity nitrogen, reacting at 60 ℃ for 24 hours, adding 40g of allyl glycidyl ether and 0.4g of azobisisobutyrimidazoline, introducing nitrogen, reacting at 60 ℃ for 18 hours, adding 75g of allyloxy hydroxypropyl sodium sulfonate solution with 40 percent of active content and 0.3g of azobisisobutyrimidazoline, reacting at 65 ℃ for 24 hours, and finally removing the solvent by vacuum pumping at 65 ℃ to obtain the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent;
s2, preparing water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive
(1) Weighing 4.5g of macromolecular surface active cross-linking agent, adding the macromolecular surface active cross-linking agent into 120g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, slowly adding 180g of butyl acrylate, 60g of isooctyl acrylate, 48g of isobornyl acrylate, 6g of beta-acryloxypropionic acid, 6g of acetoacetoxy ethyl methacrylate, 0.3g of 3-isooctyl mercaptoacrylate and 1.5g of tert-butyl hydroperoxide, stirring for 30min, and stirring at the speed of 500r/min to obtain a monomer pre-emulsion;
(2) Adding 20g of deionized water into a reaction kettle, heating to 62 ℃, adding 8.4g of the monomer pre-emulsion prepared in the step (1) and 0.3g of disodium glycolate sulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 0.6g of glycolic acid disodium sulfinate into a reaction kettle within 3 hours for reaction, preserving heat for 1 hour at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Wake BS-168 to adjust the pH value to 7, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with 3g of hexamethylene diamine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive.
Example 2
The embodiment provides a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive, which is prepared by the following specific steps:
s1, preparing a macromolecular surface active cross-linking agent
Adding 40g of ethyl acrylate, 20g of ethanol, 0.1g of 4-cyanovaleric acid dithiobenzoic acid and 0.2g of azobisisobutyrimidazoline into a reactor, introducing high-purity nitrogen, reacting at 60 ℃ for 12 hours, adding 30g of allyl glycidyl ether and 0.1g of azobisisobutyrimidazoline, introducing nitrogen, reacting at 60 ℃ for 48 hours, adding 25g of allyloxy hydroxypropyl sodium sulfonate solution with the activity content of 40% and 0.1g of azobisisobutyrimidazoline, reacting at 65 ℃ for 12 hours, and finally vacuumizing at 65 ℃ to remove the solvent to obtain the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent;
s2, preparing water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive
(1) Weighing 1.5g of macromolecular surface active cross-linking agent, adding the macromolecular surface active cross-linking agent into 70g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, slowly adding 170g of ethyl acrylate, 70g of methyl methacrylate, 20g of isobornyl methacrylate, 1.5g of beta-acryloxypropionic acid, 15g of acetoacetoxy ethyl methacrylate, 0.06g of 3-isooctyl mercaptoacrylate and 0.9g of tert-butyl hydroperoxide, stirring for 20min, and stirring at the speed of 400r/min to obtain a monomer pre-emulsion;
(2) Adding 30g of deionized water into a reaction kettle, heating to 60 ℃, adding 52.34g of the monomer pre-emulsion prepared in the step (1) and 0.2g of disodium glycolsulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 0.4g of glycolic acid disodium sulfinate into a reaction kettle within 2 hours for reaction, preserving heat for 1 hour at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Wake BS-168 to adjust the pH value to 8, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with 0.5g of ethylenediamine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive.
Example 3
The embodiment provides a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive, which is prepared by the following specific steps:
s1, preparing a macromolecular surface active cross-linking agent
Adding 10g of ethyl acrylate, 80g of ethanol, 2g of 4-cyanovaleric acid dithiobenzoic acid and 0.8g of azobisisobutyrimidazoline into a reactor, introducing high-purity nitrogen, reacting at 60 ℃ for 48 hours, adding 60g of allyl glycidyl ether and 2.2g of azobisisobutyrimidazoline, introducing nitrogen, reacting at 60 ℃ for 12 hours, adding 150g of allyloxy hydroxypropyl sodium sulfonate solution with the activity content of 40% and 1g of azobisisobutyrimidazoline, reacting at 65 ℃ for 48 hours, and finally removing the solvent at 65 ℃ by vacuum pumping to obtain the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the high-molecular surface active cross-linking agent;
s2, preparing water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive
(1) Weighing 15g of a macromolecular surface active cross-linking agent, adding the macromolecular surface active cross-linking agent into 110g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, then slowly adding 190g of methyl acrylate, 82g of methyl methacrylate, 28g of isobornyl acrylate, 15g of beta-acryloxypropionic acid, 1.5g of acetoacetoxy ethyl methacrylate, 1.2g of 3-isooctyl mercaptoacrylate and 3g of tert-butyl hydroperoxide, stirring for 40min, and stirring at the speed of 600r/min to obtain a monomer pre-emulsion;
(2) Adding 40g of deionized water into a reaction kettle, heating to 65 ℃, adding 4.46g of the monomer pre-emulsion prepared in the step (1) and 0.6g of disodium glycolsulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 1.8g of disodium glycolate sulfinate into a reaction kettle within 5 hours for reaction, preserving heat for 1 hour at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Wake BS-168 to adjust the pH value to 7, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with 5g of diethylenetriamine and 5g of triethylene tetramine to obtain the water-resistant and weather-resistant water-based acrylate pressure-sensitive adhesive.
Example 4
The embodiment provides a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive, which is prepared by the following specific steps:
s1, preparing a macromolecular surface active cross-linking agent
Adding 20g of ethyl acrylate, 40g of ethanol, 0.1g of 4-cyanovaleric acid dithiobenzoic acid and 0.5g of azobisisobutyrimidazoline into a reactor, introducing high-purity nitrogen, reacting at 60 ℃ for 36h, adding 45g of allyl glycidyl ether and 0.7g of azobisisobutyrimidazoline, introducing nitrogen, reacting at 60 ℃ for 24h, adding 100g of allyloxy hydroxypropyl sodium sulfonate solution with the activity content of 40% and 0.8g of azobisisobutyrimidazoline, reacting at 65 ℃ for 18h, and finally vacuumizing at 65 ℃ to remove the solvent to obtain the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent;
s2, preparing water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive
(1) Weighing 8g of macromolecular surface active cross-linking agent, adding the macromolecular surface active cross-linking agent into 100g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, slowly adding 290g of butyl acrylate, 9g of beta-acryloxypropionic acid, 12g of acetoacetoxy ethyl methacrylate, 0.6g of 3-isooctyl mercaptoacrylate and 2g of tert-butyl hydroperoxide, stirring for 20min, and stirring at the speed of 500r/min to obtain a monomer pre-emulsion;
(2) Adding 20g of deionized water into a reaction kettle, heating to 64 ℃, adding 21.1g of the monomer pre-emulsion prepared in the step (1) and 0.6g of disodium glycolsulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 0.6g of glycolic acid disodium sulfinate into a reaction kettle within 3 hours for reaction, preserving heat for 1 hour at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Wake BS-168 to adjust the pH value to 8, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with 3g of hexamethylene diamine and 5g of diethylenetriamine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive.
Example 5
The embodiment provides a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive, which is prepared by the following specific steps:
s1, preparing a macromolecular surface active cross-linking agent
Adding 25g of ethyl acrylate, 60g of ethanol, 1.5g of 4-cyanovaleric acid dithiobenzoic acid and 1.2g of azobisisobutyrimidazoline into a reactor, introducing high-purity nitrogen, reacting at 60 ℃ for 20 hours, adding 50g of allyl glycidyl ether and 0.4g of azobisisobutyrimidazoline, introducing nitrogen, reacting at 60 ℃ for 18 hours, adding 125g of allyloxy hydroxypropyl sodium sulfonate solution with the activity content of 40% and 1.4g of azobisisobutyrimidazoline, reacting at 65 ℃ for 36 hours, and finally removing the solvent by vacuum pumping at 65 ℃ to obtain the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent;
s2, preparing water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive
(1) Weighing 2g of macromolecular surface active cross-linking agent, adding the macromolecular surface active cross-linking agent into 120g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, slowly adding 190g of methyl methacrylate, 80g of isobornyl methacrylate, 12g of beta-acryloxypropionic acid, 9g of acetoacetoxyethyl methacrylate, 0.9g of 3-isooctyl mercaptoacrylate and 2.5g of tert-butyl hydroperoxide, stirring for 40min, and stirring at the speed of 400r/min to obtain a monomer pre-emulsion;
(2) Adding 10g of deionized water into a reaction kettle, heating to 63 ℃, adding 42.64g of the monomer pre-emulsion prepared in the step (1) and 0.8g of disodium glycolsulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 1g of disodium glycolate sulfinate into a reaction kettle within 4h for reaction, preserving the temperature for 1h at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Watk BS-168 to adjust the pH value to 8, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with 5g of triethylene tetramine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive. .
Comparative example
The comparative example provides a water-based acrylate pressure-sensitive adhesive, which comprises the following specific preparation steps:
(1) Weighing 4.5g of allyloxy nonyl phenol polyoxyethylene ether monophosphate, adding the allyloxy nonyl phenol polyoxyethylene ether monophosphate into 120g of water, stirring at normal temperature to obtain an emulsifier aqueous solution, slowly adding 180g of butyl acrylate, 60g of isooctyl acrylate, 48g of isobornyl acrylate, 6g of beta-acryloxypropionic acid, 6g of acetoacetoxy ethyl methacrylate, 0.3g of 3-isooctyl mercaptoacrylate and 1.5g of tert-butyl hydroperoxide, stirring for 30min, and stirring at the speed of 500r/min to obtain a monomer pre-emulsion;
(2) Adding 20g of deionized water into a reaction kettle, heating to 62 ℃, adding 8.4g of the monomer pre-emulsion in the step (1) and 0.3g of disodium glycolsulfinate, and reacting for 20min; then dropwise adding the residual monomer pre-emulsion and 0.6g of glycolic acid disodium sulfinate into a reaction kettle within 3 hours for reaction, preserving heat for 1 hour at 65 ℃ after dropwise adding is finished, cooling to below 45 ℃, adding Wake BS-168 to adjust the pH value to 7, filtering and discharging to obtain the water-based acrylate pressure-sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive obtained in the step (2) with 3g of hexamethylene diamine to obtain the water-based acrylate pressure-sensitive adhesive of the comparative example 1.
Examples of the experiments
The water-resistant weather-resistant water-based acrylic pressure-sensitive adhesive prepared in the examples 1 to 5 and the water-based acrylic pressure-sensitive adhesive prepared in the comparative example 1 are respectively and uniformly coated on a PET film with the thickness of 40 micrometers, the thickness of the dry adhesive is 20 micrometers, and after drying and curing are carried out for 2min at the temperature of 120 ℃, the pressure-sensitive adhesive tape is prepared and subjected to performance test, and specific results are shown in Table 1.
The test method is as follows:
1.180 ° peel strength: according to GB/T2792-2014 adhesive tape peeling strength test method, an electronic universal tester is adopted for measurement (the adhered material is a standard test steel plate, and the peeling rate is 300mm/min;
2. water and weather resistance: directly soaking the pressure-sensitive adhesive tape stripped of the release paper into deionized water at the water temperature of 25 ℃ for 72 hours, and taking out to observe whether the surface of the adhesive tape is whitened;
3. water absorption: testing is carried out according to GB/T1733-1993 'determination method for water resistance of paint film';
4. high temperature, high humidity and aging resistance: the 180 DEG peel strength of the aged adhesive tape was measured by an electronic universal tester in accordance with GB/T32368-2015 test method for high temperature, high humidity and aging resistance of adhesive tape.
Table 1 results of performance testing
From the above table, the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive prepared in the embodiment of the invention has low water absorption rate, and the 180-degree peel strength is reduced by less than 10% after high-temperature aging.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the present invention.
Claims (9)
1. The waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive is characterized by comprising the following raw materials in parts by weight: 1.5-15 parts of macromolecular surface active cross-linking agent, 100-150 parts of deionized water, 260-300 parts of acrylate monomer, 1.5-15 parts of functional monomer, 1.5-15 parts of cross-linking monomer, 0.06-1.2 parts of chain transfer agent, 0.9-3 parts of oxidant, 0.6-2.4 parts of reducing agent and 0.5-10 parts of polyamine;
the macromolecular surface active cross-linking agent is allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer.
2. The water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive of claim 1, wherein the polymeric surface active cross-linking agent is prepared by the following method:
mixing ethyl acrylate, a RAFT chain transfer agent, absolute ethyl alcohol and an initiator, introducing high-purity nitrogen, reacting for 12-48 h at 60 ℃, adding allyl glycidyl ether and the initiator, introducing nitrogen, reacting for 12-48 h at 60 ℃, adding allyloxy hydroxypropyl sodium sulfonate and the initiator, reacting for 12-48 h at 65 ℃, vacuumizing at 65 ℃ to remove a solvent, and obtaining the allyloxy hydroxypropyl sodium sulfonate-allyl glycidyl ether-ethyl acrylate amphiphilic block oligomer, namely the macromolecular surface active cross-linking agent.
3. The weather-resistant water-based acrylate pressure-sensitive adhesive as claimed in claim 2, wherein the mass ratio of the ethyl acrylate, the RAFT chain transfer agent, the ethanol, the allyl glycidyl ether, the sodium allyloxy hydroxypropyl sulfonate and the initiator is 10-40: 0.1 to 2:20 to 80:30 to 60:25 to 150:0.4 to 4.
4. The water-resistant, weather-resistant waterborne acrylate pressure sensitive adhesive of claim 2 or 3, wherein the RAFT chain transfer agent is 4-cyanovaleric acid dithiobenzoic acid;
and/or the initiator is azobisisobutyrimidazoline.
5. The water-resistant, weather-resistant waterborne acrylate pressure-sensitive adhesive of claim 1 wherein the acrylate monomer is one or more of butyl acrylate, isooctyl acrylate, ethyl acrylate, methyl methacrylate, isobornyl acrylate, isobornyl methacrylate;
and/or the functional monomer is beta-acryloxypropionic acid;
and/or the crosslinking monomer is acetoacetoxy ethyl methacrylate;
and/or the chain transfer agent is 3-isooctyl mercaptoacrylate;
and/or the oxidizing agent is tert-butyl hydroperoxide;
and/or the reducing agent is disodium glycolate sulfinate.
6. A preparation method of a waterproof and weather-resistant water-based acrylate pressure-sensitive adhesive is characterized by comprising the following steps:
(1) Mixing a high-molecular surface active cross-linking agent, part of deionized water, an acrylate monomer, a functional monomer, a cross-linking monomer, a chain transfer agent and an oxidizing agent, and stirring and emulsifying to obtain a monomer pre-emulsion;
(2) Heating the residual deionized water to 60-65 ℃, adding part of the monomer pre-emulsion prepared in the step (1) and part of the reducing agent, reacting for 20min, dropwise adding the residual monomer pre-emulsion and the reducing agent within 2-5 h, preserving heat for 1h at 65 ℃ after dropwise adding, then cooling to below 45 ℃, adding a pH value regulator to adjust the pH value of the emulsion to 7-8, stirring uniformly, filtering and discharging to obtain the water-based acrylate sensitive adhesive;
(3) And (3) uniformly mixing the water-based acrylate pressure-sensitive adhesive prepared in the step (2) with polyamine to obtain the water-resistant weather-resistant water-based acrylate pressure-sensitive adhesive.
7. The method for preparing the water-resistant and weather-resistant water-based acrylate pressure-sensitive adhesive according to claim 6, wherein the partial monomer pre-emulsion obtained in the step (2) accounts for 1-15% of the total mass of the monomer pre-emulsion obtained in the step (1).
8. The method of claim 6, wherein the pH adjuster is a silicone type adjuster.
9. The method for preparing the water-resistant and weather-resistant water-based acrylate pressure-sensitive adhesive according to claim 6, wherein the polyamine is one or more of ethylenediamine, hexamethylenediamine, diethylenetriamine and triethylenetetramine.
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