CN113930195A - Water-based acrylic pressure-sensitive adhesive, preparation method and foam adhesive tape - Google Patents
Water-based acrylic pressure-sensitive adhesive, preparation method and foam adhesive tape Download PDFInfo
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- CN113930195A CN113930195A CN202111449652.XA CN202111449652A CN113930195A CN 113930195 A CN113930195 A CN 113930195A CN 202111449652 A CN202111449652 A CN 202111449652A CN 113930195 A CN113930195 A CN 113930195A
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- Prior art keywords
- water
- sensitive adhesive
- parts
- acrylic pressure
- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 80
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000006260 foam Substances 0.000 title claims abstract description 48
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title abstract description 11
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 56
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000000839 emulsion Substances 0.000 claims description 30
- 239000003995 emulsifying agent Substances 0.000 claims description 20
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 19
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 17
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 17
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- 239000004816 latex Substances 0.000 claims description 16
- 229920000126 latex Polymers 0.000 claims description 16
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 14
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 13
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 13
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 13
- YZYASTRURKBPPS-UHFFFAOYSA-N C(CCC(=O)OCCCCCC(C)C)(=O)OCCCCCC(C)C.[Na] Chemical group C(CCC(=O)OCCCCCC(C)C)(=O)OCCCCCC(C)C.[Na] YZYASTRURKBPPS-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 11
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 11
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 11
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 11
- 239000002562 thickening agent Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 claims description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- -1 polyoxyethylene nonylphenol Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000001384 succinic acid Substances 0.000 claims description 3
- 238000001246 colloidal dispersion Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 25
- 230000001070 adhesive effect Effects 0.000 description 25
- 229920001577 copolymer Polymers 0.000 description 12
- 239000000123 paper Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000001804 emulsifying effect Effects 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 229940074404 sodium succinate Drugs 0.000 description 3
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013142 basic testing Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- 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
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
-
- 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
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
-
- 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
-
- 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
- C09J2301/30—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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a water-based acrylic pressure-sensitive adhesive, a preparation method and a foam adhesive tape, which comprise a foam adhesive tape and a pressure-sensitive adhesive formed on the foam adhesive tape, wherein the pressure-sensitive adhesive comprises, by mass, 600 parts of n-butyl acrylate 300-. The water-based acrylic pressure-sensitive adhesive, the preparation method and the foam adhesive tape have the characteristics of environmental friendliness and low price under the condition that the viscosity, the durability and the deformation resistance are not reduced.
Description
Technical Field
The invention relates to a pressure-sensitive adhesive, in particular to a water-based acrylic pressure-sensitive adhesive, a preparation method and a foam adhesive tape.
Background
The foam adhesive tape is prepared by taking kraft paper with a release surface on one side as a base material, directly coating a pressure-sensitive adhesive on the release surface in a scraper coating mode, drying by an oven and transferring to specified foam.
The adhesive tape has the characteristics of high initial adhesion, large peeling force, long lasting adhesion, excellent compression deformation resistance and the like, has excellent surface wettability, is easy to bond, is easy to manufacture and is convenient to punch. The foam adhesive tape can be used for automobile foam, industrial instruments, office stationery, sticking, sealing and the like.
The traditional foam adhesive tape is basically a solvent type acrylate pressure-sensitive adhesive, and when the environmental protection is increasingly tense and the price of raw materials is fiercely increased, the solvent type pressure-sensitive adhesive is gradually replaced by more environment-friendly and cheaper water-based acrylate pressure-sensitive adhesive, which is the fact that the pressure-sensitive adhesive cannot be blocked.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a water-based acrylic pressure-sensitive adhesive, a preparation method and a foam adhesive tape, which are more environment-friendly and low in price under the condition of not reducing viscosity, durability and deformation resistance.
In order to achieve the purpose, the embodiment of the invention provides a water-based acrylic pressure-sensitive adhesive which comprises the following raw materials, by mass, 600 parts of n-butyl acrylate, 20-300 parts of isooctyl acrylate, 10-100 parts of methyl methacrylate, 2-10 parts of acrylic acid, 4-20 parts of hydroxyethyl acrylate, 3-10 parts of a composite emulsifier, 500 parts of deionized water, 1-5 parts of ammonium persulfate, 0.1-1 part of bicarbonate and 5-10 parts of ammonia water.
In one or more embodiments of the present invention, the compound emulsifier is two or more of alkylphenol polyoxyethylene ether sulfate, polyoxyethylene nonylphenol ether acrylate, and allyloxy succinic acid alkyl ester sulfonate.
In one or more embodiments of the invention, the ammonia water concentration is 25 to 28%.
In one or more embodiments of the present invention, a method for preparing a water-based acrylic pressure sensitive adhesive comprises the steps of:
adding a compound emulsifier accounting for 85-95% of the total amount, bicarbonate accounting for 70-90% of the total amount and deionized water accounting for 30-60% of the total amount into a reaction kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to obtain a pre-emulsion;
adding the rest of the compound emulsifier, deionized water and bicarbonate into a reaction kettle, heating to 80-90 ℃, adding 3-8% of the pre-emulsion and 40-80% of ammonium persulfate in the total amount, and keeping the temperature for 15-30 minutes;
and dropwise adding the rest pre-emulsion and ammonium persulfate for 3-5h, preserving heat for 1-2h after dropwise adding, then reacting, cooling to below 45 ℃, adding ammonia water to adjust the pH, and filtering to obtain the aqueous acrylic pressure-sensitive adhesive.
In one or more embodiments of the invention, the method comprises the following steps: the pressure-sensitive adhesive layer comprises the following raw material components, by mass, 70-90 parts of the water-based acrylic pressure-sensitive adhesive according to any one of claims 1-3, 5-20 parts of water-based rosin tackifying resin, 1-10 parts of water-based neoprene latex, 0.5-2.0 parts of water-based thickener and 0.5-2.0 parts of wetting agent.
In one or more embodiments of the invention, the solid content of the aqueous acrylic pressure-sensitive adhesive is 52-54%, the viscosity is 100-300cps, and the pH is 7.0-9.0.
In one or more embodiments of the present invention, the aqueous neoprene latex is an aqueous polychloroprene colloidal dispersion.
In one or more embodiments of the present invention, the aqueous thickener is a high molecular aqueous acrylate thickener, in particular an acrylate copolymer. The acrylate copolymer is a dispersion of a lightly crosslinked acrylic polymer and provides excellent stability and thickening properties to the system.
In one or more embodiments of the present invention, the wetting agent is a sodium diisooctyl succinate solution, and the solvent of the sodium diisooctyl succinate solution is any one of water or ethanol.
In one or more embodiments of the invention, the foam substrate layer is a PE layer or an EVA layer made by foaming.
Compared with the prior art, the water-based acrylate foam adhesive tape provided by the embodiment of the invention is environment-friendly in adopted raw materials and low in price, and the production cost is greatly reduced.
Detailed Description
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
The water-based acrylic pressure-sensitive adhesive comprises, by mass, 600 parts of n-butyl acrylate 300-.
Wherein the compound emulsifier is two or more of alkylphenol polyoxyethylene ether sulfate, polyoxyethylene nonylphenol ether acrylate and allyloxy succinic acid alkyl ester sulfonate.
Wherein the concentration of the ammonia water is 25-28%.
The invention also provides a preparation method of the water-based acrylic pressure-sensitive adhesive, which comprises the following steps:
adding a compound emulsifier accounting for 85-95% of the total amount, bicarbonate accounting for 70-90% of the total amount and deionized water accounting for 30-60% of the total amount into a reaction kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to obtain a pre-emulsion;
adding the rest of the compound emulsifier, bicarbonate and deionized water into a reaction kettle, heating to 80-90 ℃, then adding pre-emulsion accounting for 3-8% of the total amount of the pre-emulsion and ammonium persulfate accounting for 40-80% of the total amount of the pre-emulsion, and preserving heat for 15-30 minutes;
and dropwise adding the rest pre-emulsion and ammonium persulfate for 3-5h, preserving heat for 1-2h after dropwise adding, then reacting, cooling to below 45 ℃, then adding ammonia water, and filtering to obtain the aqueous acrylic pressure-sensitive adhesive.
The invention also provides a foam adhesive tape, which comprises: the pressure-sensitive adhesive layer comprises the following raw material components, by mass, 70-90 parts of the water-based acrylic pressure-sensitive adhesive according to any one of claims 1-3, 5-20 parts of water-based rosin tackifying resin, 1-10 parts of water-based neoprene latex, 0.5-2.0 parts of water-based thickener and 0.5-2.0 parts of wetting agent.
Wherein the solid content of the water-based acrylic pressure-sensitive adhesive is 52-54%, the viscosity is 100-300cps, the pH is 7.0-9.0, and the glass transition temperature is-45-35 ℃.
The water-based rosin tackifying resin has the mass percent of 49-51%, the softening point of about 120 ℃, good plasticity and adhesive strength, strong low temperature resistance and ageing resistance, and strong tackifying effect with rubber series, acrylic acid series, pressure-sensitive adhesive, water-based paint and water-based paint, greatly improves the adhesive force and peel strength, and improves the weather resistance and ageing resistance. Has excellent compatibility with various latexes or emulsions.
Wherein the mass percent of the water-based neoprene latex is 54-56 percent, and the water-based neoprene latex is water-based polychloroprene colloid dispersoid. The adhesive is used in a water-based adhesive formula and applied to the industrial fields of buildings, furniture, mattresses, automobiles and the like. Is an ideal raw material for the porous material bonding adhesive.
Wherein the water-based thickener is a high-molecular water-based acrylate thickener, in particular to an acrylate copolymer, and the mass percentage of the water-based thickener is 30%. The acrylate copolymer is a dispersion of a lightly crosslinked acrylic polymer and provides excellent stability and thickening properties to the system.
The wetting agent is a sodium diisooctyl succinate solution, the concentration of the wetting agent is 75%, the solvent of the sodium diisooctyl succinate solution is any one of water or ethanol, the surface tension is reduced, the flowing and leveling performance is improved, the wetting performance and the coating performance of the emulsion on the surface of the release substrate are enhanced, and the excellent effect is achieved.
The foam cotton substrate layer is a PE layer or an EVA layer prepared by foaming, the release paper layer is single-sided release kraft paper, and the release surface of the release paper layer is coated with a water-based non-release silicon release coating which has good hydrophobic property.
In a specific embodiment, the preparation method of the foam adhesive tape comprises the following steps:
coating the pressure-sensitive adhesive on the release paper by a scraper coating mode, drying, attaching the surface of the single-sided release kraft paper coated with the pressure-sensitive adhesive to a PE layer or an EVA layer, and paving to obtain the foam adhesive tape.
Example 1
Weighing 300g of n-butyl acrylate, 20g of isooctyl acrylate, 10g of methyl methacrylate, 2g of acrylic acid, 4g of hydroxyethyl acrylate, 3g of composite emulsifier, 300g of deionized water, 1g of ammonium persulfate, 0.1g of bicarbonate and 5g of ammonia water according to parts by weight;
preparation of pre-emulsion: adding 2.25g of compound emulsifier, 0.075g of bicarbonate and 130g of deionized water into a pre-emulsifying kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to prepare a pre-emulsion.
Adding the rest 0.75g of compound emulsifier, 170g of deionized water and 0.025g of bicarbonate into a reaction kettle, heating to 85 ℃, and then adding the pre-emulsion accounting for 4.0 weight percent of the total amount of the pre-emulsion and 0.65g of ammonium persulfate.
After the temperature is kept for 15 minutes, the residual pre-emulsion and ammonium persulfate are dripped, and the dripping is finished within 3 hours; after dripping, preserving heat for 1 hour, then carrying out elimination reaction, cooling to below 45 ℃, adding 5g of ammonia water for neutralization and discharging, and thus obtaining the required aqueous acrylic pressure-sensitive adhesive.
Examples 1 to 1
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 85.86% of water-based acrylic pressure-sensitive adhesive (prepared in example 1) in percentage; 10.10 percent of water-based rosin tackifying resin; 2.02% of water-based neoprene latex; 1.01 percent of diisooctyl sodium succinate solution; 1.01% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 1 to 2
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 79.44% of water-based acrylic pressure-sensitive adhesive (prepared in example 1) in percentage; 14.02 percent of water-based rosin tackifying resin; 4.67 percent of water-based neoprene latex; sodium diisooctyl succinate solution 0.93%; 0.93% of an acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 1 to 3
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises the following raw material components, the foam adhesive tape comprises the foam base material layer, the release paper layer and the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer comprises the following raw material components, by percentage, 73.91% of the aqueous acrylic pressure-sensitive adhesive (prepared in embodiment 1); 17.39 percent of water-based rosin tackifying resin; 6.96 percent of water-based neoprene latex; 0.87% of sodium diisooctyl succinate solution; 0.87% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Example 2
Weighing 450g of n-butyl acrylate, 150g of isooctyl acrylate, 60g of methyl methacrylate, 5g of acrylic acid, 12g of hydroxyethyl acrylate, 6g of composite emulsifier, 400g of deionized water, 3g of ammonium persulfate, 0.6g of bicarbonate and 8g of ammonia water according to the weight;
preparation of pre-emulsion: adding 4.8g of compound emulsifier, 0.48g of bicarbonate and 160g of deionized water into a pre-emulsifying kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to prepare a pre-emulsion.
Adding the rest 1.2g of compound emulsifier, 240g of deionized water and 0.12g of bicarbonate into a reaction kettle, heating to 85 ℃, and then adding the pre-emulsion accounting for 6.0 weight percent of the total amount of the pre-emulsion and 2g of ammonium persulfate.
After the temperature is kept for 20 minutes, the residual pre-emulsion and ammonium persulfate are dripped, and the dripping is finished within 3.5 hours; after dripping, preserving heat for 1 hour, then carrying out elimination reaction, cooling to below 45 ℃, adding 8g of ammonia water for neutralization and discharging, and thus obtaining the required aqueous acrylic pressure-sensitive adhesive.
Example 2-1
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 85.86% of water-based acrylic pressure-sensitive adhesive (prepared in example 2) in percentage; 10.10 percent of water-based rosin tackifying resin; 2.02% of water-based neoprene latex; 1.01 percent of diisooctyl sodium succinate solution; 1.01% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 2 to 2
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 79.44% of water-based acrylic pressure-sensitive adhesive (prepared in example 2) in percentage; 14.02 percent of water-based rosin tackifying resin; 4.67 percent of water-based neoprene latex; sodium diisooctyl succinate solution 0.93%; 0.93 percent of water-based acrylate thickening agent; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 2 to 3
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 73.91% of water-based acrylic pressure-sensitive adhesive (prepared in example 2) in percentage; 17.39 percent of water-based rosin tackifying resin; 6.96 percent of water-based neoprene latex; 0.87% of sodium diisooctyl succinate solution; 0.87% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Example 3
Weighing 600g of n-butyl acrylate, 300g of isooctyl acrylate, 100g of methyl methacrylate, 10g of acrylic acid, 20g of hydroxyethyl acrylate, 10g of composite emulsifier, 500g of deionized water, 5g of ammonium persulfate, 1g of bicarbonate and 10g of ammonia water.
Preparation of pre-emulsion: adding 7.5g of compound emulsifier, 0.75g of bicarbonate and 220g of deionized water into a pre-emulsifying kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to prepare a pre-emulsion;
adding the rest 2.5g of compound emulsifier, 280g of deionized water and 0.25g of bicarbonate into a reaction kettle, heating to 85 ℃, and then adding the pre-emulsion accounting for 7.5 weight percent of the total amount of the pre-emulsion and 3.5g of ammonium persulfate.
After the temperature is kept for 20 minutes, the residual pre-emulsion and ammonium persulfate are dripped, and the dripping is finished within 4 hours; after dripping, preserving heat for 1 hour, then carrying out elimination reaction, cooling to below 45 ℃, adding 10g of ammonia water for neutralization and discharging, and thus obtaining the required aqueous acrylic pressure-sensitive adhesive.
Example 3-1
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 85.86% of water-based acrylic pressure-sensitive adhesive (prepared in example 3) in percentage; 10.10 percent of water-based rosin tackifying resin; 2.02% of water-based neoprene latex; 1.01 percent of diisooctyl sodium succinate solution; 1.01% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 3 to 2
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 79.44% of water-based acrylic pressure-sensitive adhesive (prepared in example 3) in percentage; 14.02 percent of water-based rosin tackifying resin; 4.67 percent of water-based neoprene latex; sodium diisooctyl succinate solution 0.93%; 0.93% of an acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
Examples 3 to 3
The foam adhesive tape comprises a foam base material layer, a release paper layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 73.91% of water-based acrylic pressure-sensitive adhesive (prepared in example 3) in percentage; 17.39 percent of water-based rosin tackifying resin; 6.96 percent of water-based neoprene latex; 0.87% of sodium diisooctyl succinate solution; 0.87% of acrylate copolymer; the pressure-sensitive adhesive is prepared by the scheme, and is coated after being uniformly stirred, wherein the dry weight of the adhesive is about 60 g/square meter (the dry thickness of the adhesive is about 60 mu m, and the thickness refers to the average thickness).
The following are the test modes for the examples:
and (3) testing the peeling force: no. 32 balls were taken, and the No. 32 balls were adhered to an adhesive tape at normal temperature, followed by a peel test and recording of peel force.
And (3) permanent adhesion testing: taking the No. 32 ball, adhering the No. 32 ball to an adhesive tape at normal temperature, and observing and recording the falling time of the No. 32 ball.
Testing the plane attaching force: and (5) attaching the adhesive surface of the adhesive tape to the stainless steel plane, and recording the time of warping.
And (3) testing the adhesion: cut 20cm tape samples and directly test the viscosity at 85 ℃/85%: and the time at which the lift was recorded.
Testing the curved surface fitting: a15 cm adhesive tape sample is cut, a steel pipe with the diameter of 10cm is attached, the test at 85 ℃/85% is carried out, and the time of warping is recorded.
The following are the example test results:
according to the embodiment and the corresponding test results, the basic test performance and the application performance of the foam adhesive tape prepared from the water-based acrylic pressure-sensitive adhesive can reach the standard by a scheme. The primary design purpose is achieved: the foam adhesive tape is prepared by replacing solvent-based adhesives with more stable, more environment-friendly and cheaper water-based acrylate pressure-sensitive adhesives, which are expensive and have serious environmental pollution.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The water-based acrylic pressure-sensitive adhesive is characterized by comprising the following raw materials, by mass, 300-600 parts of n-butyl acrylate, 20-300 parts of isooctyl acrylate, 10-100 parts of methyl methacrylate, 2-10 parts of acrylic acid, 4-20 parts of hydroxyethyl acrylate, 3-10 parts of a composite emulsifier, 500 parts of deionized water, 1-5 parts of ammonium persulfate, 0.1-1 part of bicarbonate and 5-10 parts of ammonia water.
2. The aqueous acrylic pressure-sensitive adhesive of claim 1, wherein the composite emulsifier is two or more of alkylphenol polyoxyethylene ether sulfate, polyoxyethylene nonylphenol ether acrylate and allyloxy succinic acid alkyl ester sulfonate.
3. The aqueous acrylic pressure-sensitive adhesive of claim 1, wherein the aqueous ammonia concentration is 25 to 28%.
4. The method for preparing the aqueous acrylic pressure-sensitive adhesive according to any one of claims 1 to 3, comprising the steps of:
adding a compound emulsifier accounting for 85-95% of the total amount, bicarbonate accounting for 70-90% of the total amount and deionized water accounting for 30-60% of the total amount into a reaction kettle, mixing and uniformly stirring, adding all n-butyl acrylate, isooctyl acrylate, methyl methacrylate, acrylic acid and hydroxyethyl acrylate, and uniformly stirring to obtain a pre-emulsion;
adding the rest of the compound emulsifier, deionized water and bicarbonate into a reaction kettle, heating to 80-90 ℃, then adding the pre-emulsion accounting for 3-8% of the total amount of the pre-emulsion and ammonium persulfate accounting for 40-80% of the total amount of the pre-emulsion, and preserving heat for 15-30 minutes;
and dropwise adding the rest pre-emulsion and ammonium persulfate for 3-5h, preserving heat for 1-2h after dropwise adding, then reacting, cooling to below 45 ℃, adding ammonia water to adjust the pH, and filtering to obtain the aqueous acrylic pressure-sensitive adhesive.
5. A foam tape, comprising: the pressure-sensitive adhesive layer comprises the following raw material components, by mass, 70-90 parts of the water-based acrylic pressure-sensitive adhesive according to any one of claims 1-3, 5-20 parts of water-based rosin tackifying resin, 1-10 parts of water-based neoprene latex, 0.5-2.0 parts of water-based thickener and 0.5-2.0 parts of wetting agent.
6. The foam adhesive tape as claimed in claim 5, wherein the aqueous acrylic pressure sensitive adhesive has a solid content of 52-54%, a viscosity of 100-300cps, and a pH of 7.0-9.0.
7. The foam tape of claim 5 wherein the aqueous neoprene latex is an aqueous polychloroprene colloidal dispersion.
8. The foam tape according to claim 5, wherein the aqueous thickener is a high molecular aqueous acrylate thickener.
9. The foam tape according to claim 5, wherein the wetting agent is a sodium diisooctyl succinate solution, and the solvent of the sodium diisooctyl succinate solution is any one of water or ethanol.
10. The foam tape according to claim 5, wherein the foam base material layer is a PE layer or an EVA layer obtained by foaming.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716937A (en) * | 2022-04-06 | 2022-07-08 | 宁波大榭开发区信诚化学有限公司 | Preparation method of foam adhesive tape with electromagnetic wave shielding function |
| CN115124940A (en) * | 2022-07-21 | 2022-09-30 | 安洁利德科技(江苏)有限公司 | Multilayer composite cotton for automobile air duct and preparation method thereof |
| CN116813833A (en) * | 2023-08-07 | 2023-09-29 | 中山市皇冠胶粘制品有限公司 | Acrylic ester polymer emulsion, pressure-sensitive adhesive, adhesive tape, and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112080233A (en) * | 2020-09-27 | 2020-12-15 | 江苏晶华新材料科技有限公司 | Water-based acrylate masking tape, water-based acrylic pressure-sensitive adhesive and preparation process thereof |
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- 2021-11-30 CN CN202111449652.XA patent/CN113930195A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112080233A (en) * | 2020-09-27 | 2020-12-15 | 江苏晶华新材料科技有限公司 | Water-based acrylate masking tape, water-based acrylic pressure-sensitive adhesive and preparation process thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114716937A (en) * | 2022-04-06 | 2022-07-08 | 宁波大榭开发区信诚化学有限公司 | Preparation method of foam adhesive tape with electromagnetic wave shielding function |
| CN115124940A (en) * | 2022-07-21 | 2022-09-30 | 安洁利德科技(江苏)有限公司 | Multilayer composite cotton for automobile air duct and preparation method thereof |
| CN115124940B (en) * | 2022-07-21 | 2023-11-03 | 安洁利德科技(江苏)有限公司 | Multilayer composite cotton for automobile air duct and preparation method thereof |
| CN116813833A (en) * | 2023-08-07 | 2023-09-29 | 中山市皇冠胶粘制品有限公司 | Acrylic ester polymer emulsion, pressure-sensitive adhesive, adhesive tape, and preparation method and application thereof |
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