CN102304333B - Single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive and synthetic method thereof as well as application thereof - Google Patents
Single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive and synthetic method thereof as well as application thereof Download PDFInfo
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- CN102304333B CN102304333B CN 201110201279 CN201110201279A CN102304333B CN 102304333 B CN102304333 B CN 102304333B CN 201110201279 CN201110201279 CN 201110201279 CN 201110201279 A CN201110201279 A CN 201110201279A CN 102304333 B CN102304333 B CN 102304333B
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Abstract
The invention relates to a single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive and a synthetic method thereof as well as an application thereof; the emulsion pressure-sensitive adhesive is prepared from the following components in parts by weight through the thermal polymerization and synthesis of a free-radical emulsion: 0.02-4 of ultraviolet light active monomer, 2-20 of light crosslinking functional monomer, 15-40 of other single functionality monomer, 0.2-3 of emulsifying agent, 0.04-0.8 of initiator, 0.02-0.3 of chain transfer agent, 0-2 of pH regulator and 50-80 of dispersed medium. The emulsion pressure-sensitive adhesive product is coated on a base material of a product to be coated; and after a solvent is volatile, the light crosslinking is carried out on the coated product in an ultraviolet light curing device. Compared with the prior art, the single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive has the advantages of having stronger cohesive force, better initial adhesion and ideal persistent persistent adhesivity, containing no small molecular compounds, forming no toxic by-products, being capable of adapting to different application requirements, being stable in property and the like.
Description
Technical field
The present invention relates to a kind of coating, especially relate to a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive and compound method and application.
Background technology
Emulsion pressure-sensitive adhesive does not contain organic solvent, has the advantages that cost is low, safe in utilization and environmental pollution is little, and it all has good cementability to various materials, the water white transparency of filming.Acrylate copolymer emulsion pressure-sensitive adhesive agent prescription is simple; Good weatherability, low toxicity or nontoxic is processed high density, low viscous pressure-sensitive adhesive easily; And more because of the propenoate kind, the acrylate copolymer emulsion pressure sensitive adhesive that processability is different on demand is to satisfy different purposes requirements.
The molecular weight of acrylate copolymer emulsion is all than higher, and general most of acrylate copolymer emulsion pressure sensitive adhesives all are non-cross-linking types.Yet polyacrylic ester was both non-crystallizable, when cooling, did not also have bigger internal cohesive energy.When the goods (like higher releasable ability, high temperature resistant or water-fast preferably ageing-resistant performance) of preparation property, it is crosslinked to improve its internal cohesive energy that the pressure sensitive adhesive adhesion coating is produced.In currently available products, adopt the method for additional crosslink agent more, make troubles for use, transportation and storage.
Ultraviolet light irradiation curing emulsion pressure-sensitive adhesive has that curing speed is fast, the base material suitability wide and advantage such as save energy; But ultraviolet light irradiation curing needs to add ultraviolet initiator and UV-light causes auxiliary agent, and mostly ultraviolet initiator is 2-hydroxy-2-methyl-1-phenyl-acetone, 1-hydroxyl-cyclohexyl benzophenone, UVNUL MS-40, benzoin methyl ether, Benzoin ethyl ether or st-yrax n-butyl ether etc.; UV-light causes auxiliary agent and is mostly triethylamine, diethylamine, trolamine or diethylolamine etc.Adhesive layer solidifies the residual ultraviolet initiator in back easily to surface transport; Generate toxic by-products; Has stronger smell; And the easy flavescence of filming, big limitations the development space of UV-light solidified pressure-sensitive adhesive at expensive goods (like food labelling, cosmetic products label and personal-care supplies label).
Summary of the invention
The object of the invention be exactly provide a kind of in order to overcome the defective that above-mentioned prior art exists and have stronger force of cohesion, tack and ideal are held viscosity, are not contained micromolecular compound preferably; Toxic by-products can be do not formed, single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive and the compound method and the application of different application requirement, stable performance can be adapted to.
The object of the invention can be realized through following technical scheme: a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive; It is characterized in that this emulsion pressure-sensitive adhesive is made through the free radical emulsion thermopolymerization is synthetic by the raw material of following component and weight part content:
UV-light reactive monomer 0.02～4;
Photo-crosslinking function monomer 2～20;
Other single functionality monomers 15～40;
Emulsifying agent 0.2～3;
Initiator 0.04～0.8;
Chain-transfer agent 0.02～0.3;
PH regulator agent 0～2;
Dispersion medium 50～80.
The raw material of described emulsion pressure-sensitive adhesive comprises following component and weight part content:
UV-light reactive monomer 0.1～3;
Photo-crosslinking function monomer 5～15;
Other single functionality monomers 20～35;
Emulsifying agent 0.8～2.5;
Initiator 0.1～0.6;
Chain-transfer agent 0.08～0.25;
PH regulator agent 0.5～1.5;
Dispersion medium 60～75.
The raw material of described emulsion pressure-sensitive adhesive comprises following component and weight part content:
UV-light reactive monomer 1～1.5;
Photo-crosslinking function monomer 8～10;
Other single functionality monomers 28～30;
Emulsifying agent 1.5～1.8;
Initiator 0.3～0.5;
Chain-transfer agent 0.12～0.2;
PH regulator agent 0.8～1.2;
Dispersion medium 68～70.
Described UV-light reactive monomer is selected from the acrylic ester monomer that contains the UV-light reactive group or in the vinyl monomer one or more; Described photo-crosslinking function monomer is selected from one or more in acrylic ester monomer or the vinyl monomer; Described other single functionality monomers are selected from 3～8 kinds in acrylic ester monomer or the vinyl monomer; Described emulsifying agent is selected from one or more in anionic emulsifier or the nonionic emulsifier.
Described UV-light reactive monomer is selected from one or more in 4-(2-hydroxyl-3-allyloxy-propoxy-) UVNUL MS-40,4-(2-hydroxyl-3-acryloxy-propoxy-) UVNUL MS-40,4-(2-hydroxy-3-methyl acryloxy-propoxy-) UVNUL MS-40,4-(2-acryloxy-ethyl) UVNUL MS-40,4-(2-methacryloxy-ethyl) UVNUL MS-40, the 4-acryloxy UVNUL MS-40;
Described photo-crosslinking function monomer is selected from one or more in NSC 20949, Propenoic acid, 2-methyl, isobutyl ester, isodecyl acrylate, isodecyl methacrylate, Isooctyl acrylate monomer, Isooctyl methacrylate, dimethylaminoethyl methacrylate, vinylformic acid-2-hydroxypropyl acrylate or the methylacrylic acid-2-hydroxypropyl acrylate;
Described other single functionality monomers are selected from methyl acrylate; TEB 3K; Ethyl propenoate; Jia Jibingxisuanyizhi; Bing Xisuandingzhi; NSC 20956; Lauryl acrylate; Lauryl methacrylate(LMA); Vinyl-acetic ester; Vinylbenzene; Vinylformic acid; Methylacrylic acid; Vinylformic acid-2-hydroxyl ethyl ester; 2-hydroxyethyl methacrylate; Glycidyl acrylate; SY-Monomer G; Methylene-succinic acid; Dibutyl maleate; Dioctyl maleate; Acrylic amide; In USAF RH-1 or the vinyl cyanide 3～8 kinds;
Described emulsifying agent is selected from one or more in sodium laurylsulfonate, X 2073, sodium lauryl sulphate, polyoxyethylene nonylphenol ammonium sulfate, polyoxyethylene nonylphenol, polyoxyethylene octylphenol ether or the sulfo-succinic acid ethoxy ethanol monoester disodium salt;
Described initiator is selected from Potassium Persulphate, ammonium persulphate, Sodium Persulfate, tertbutyl peroxide, hydrogen peroxide or sodium formaldehyde sulphoxylate.
Described chain-transfer agent is selected from n-dodecyl mercaptan, uncle's lauryl mercaptan or mercaptoethanol; Described pH regulator agent is selected from sodium hydrogencarbonate, bicarbonate of ammonia, SODIUM PHOSPHATE, MONOBASIC or primary ammonium phosphate; Described dispersion medium is a deionized water.
A kind of preparation method of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive; It is characterized in that, obtain pre-emulsion at room temperature stirring 20min～50min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; 5wt%～the 15wt% of pre-emulsion, 15wt%～25wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 75 ℃～90 ℃ following stirring reaction 0.5h～2h; Speed with 1/5s in seed emulsion drips the residue pre-emulsion, and the speed of 1/min drips the residue initiator, and pre-emulsion 1.5h～3.5h dropwises, and initiator 2h～5h dropwises; Pre-emulsion and initiator dropwise continued reaction 3h～6h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
A kind of application of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive; It is characterized in that; Single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive is coated on the product base material to be coated; Volatilize and in the ultraviolet light polymerization device, carry out that illumination is crosslinked to get final product behind the solvent, the irradiation energy of UV-light self-crosslinking is 200mJ～2000mJ.
The degree of crosslinking of ultraviolet light cross-linking pressure sensitive adhesive adhesion coating is pressed the test of Suo Shi extraction process.
The performance test of ultraviolet light cross-linking pressure-sensitive adhesive tape is following: tack is pressed GB/T 4852-2002 " pressure-sensitive adhesive tape tack TP (rolling ball method) " test; Holding viscosity tests by GB/T 4851-1998 " pressure-sensitive adhesive tape is held the adhesive test method "; 180 ° of stripping strengths are pressed GB/T 2792-1998 " 180 ° of peeling strength test methods of pressure-sensitive adhesive tape " test.
Compared with prior art; UV-light reactive group in the emulsion pressure-sensitive adhesive of the present invention mode with covalent linkage in emulsion polymerization process combines with polymer chain, has avoided adding ultraviolet initiator and UV-light and has caused micromolecular that auxiliary agent causes and separate out and move.The pressure-sensitive adhesive coating is dry, and under uv light irradiation, diphenyl ketone type UV-light reactive group and non-pair of of bonding photo-crosslinking functional group reaction generate covalent linkage, form crosslinked pressure sensitive adhesive adhesion coating then, and product of the present invention has the following advantages:
(1), through the ultraviolet light irradiation crosslinked pressure sensitive adhesive adhesion coating of formation fast, has stronger force of cohesion, tack and ideal are held viscosity preferably through design to composition and the molecular structure of emulsion pressure-sensitive adhesive; (2) apparatus for coating of existing emulsion-type pressure-sensitive capable of using; (3) do not contain micromolecular compound, can not form toxic by-products, the transparency is good; (4) can obtain suitable degree of crosslinking through the consumption of regulating the UV-light reactive monomer, the consumption and the monomeric consumption of other single functionalities of photo-crosslinking function monomer, to adapt to the different application requirement; (5) because the stable performance in emulsion of UV-light reactive group, under the lucifuge condition not can with other group generation crosslinking reactions, just self-crosslinking can take place only under action of ultraviolet light, at room temperature lucifuge was stored 6 months, it is stable that performance still keeps.
Embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment 1
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 30min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; The 10wt% of pre-emulsion, 20wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 85 ℃ of following stirring reaction 1h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 2h dropwises, and initiator 2.5h dropwises; Pre-emulsion and initiator dropwise continued reaction 4h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 2
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Building-up process is identical with embodiment 1.Gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 96% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 12 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.1N/25mm.
Embodiment 3
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Building-up process is identical with embodiment 1.Gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 82% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 15 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 4
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Building-up process is identical with embodiment 1.Gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 85% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 15 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 5
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Building-up process is identical with embodiment 1.Gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 92% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 12 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.0N/25mm.
Embodiment 6
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 30min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; The 5wt% of pre-emulsion, 15wt% and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 85 ℃ of following stirring reaction 1h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 1.5h dropwises, and initiator 2h dropwises; Pre-emulsion and initiator dropwise continued reaction 3h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 800mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 7
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 50min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; The 15wt% of pre-emulsion, 25wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 90 ℃ of following stirring reaction 1h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 3.5h dropwises, and initiator 5h dropwises; Emulsion and initiator dropwise continued reaction 6h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 1000mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 8
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
4-(2-hydroxy-3-methyl acryloxy-propoxy-) UVNUL MS-40 0.1;
Methylacrylic acid-2-hydroxypropyl acrylate 15;
Vinyl cyanide 20;
Sulfo-succinic acid ethoxy ethanol monoester disodium salt 2.5;
Sodium formaldehyde sulphoxylate 0.6;
N-dodecyl mercaptan 0.08;
Bicarbonate of ammonia 0.5～0.8;
Deionized water 60.
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 25～30min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; The 12wt% of pre-emulsion, 23wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 80～85 ℃ of following stirring reaction 1h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 1.5～2h dropwises, and initiator 2～2.5h dropwises; Emulsion and initiator dropwise continued reaction 3～4h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 1500mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 9
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
4-acryloxy UVNUL MS-40 3;
Isodecyl acrylate 5;
Lauryl acrylate 35;
Polyoxyethylene nonylphenol ammonium sulfate 0.8;
Hydrogen peroxidase 10 .1;
Uncle's lauryl mercaptan or mercaptoethanol 0.25;
SODIUM PHOSPHATE, MONOBASIC 1.2～1.5;
Deionized water 75.
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 30min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; 12～15wt% of pre-emulsion, 22～25wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 85～90 ℃ of following stirring reaction 1.5～2h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 3.2～3.5h dropwises, and initiator 4～5h dropwises; Emulsion and initiator dropwise continued reaction 5～6h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 1800～2000mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Embodiment 10
The single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive of present embodiment is synthetic for raw material by following component (weight part):
4-(2-acryloxy-ethyl) UVNUL MS-40 1～1.5;
Isooctyl acrylate monomer 8～10;
Vinylformic acid-2-hydroxyl ethyl ester 28～30;
Polyoxyethylene nonylphenol 1.5～1.8;
Tertbutyl peroxide 0.3～0.5;
N-dodecyl mercaptan 0.12～0.2;
Primary ammonium phosphate 0.8～1.2;
Deionized water 68～70.
Concrete building-up process is: obtain pre-emulsion with at room temperature stirring 30min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; The 10wt% of pre-emulsion, 20wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 85 ℃ of following stirring reaction 1h; Speed with 1/5s in seed emulsion drips remaining pre-emulsion, and the speed of 1/min drips remaining initiator, and pre-emulsion 2h dropwises, and initiator 2.5h dropwises; Emulsion and initiator dropwise continued reaction 4h, obtain single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion after the cooling.
Above-mentioned gained single component UV-light self-crosslinked acrylate multipolymer pressure-sensitive adhesive agent emulsion is coated with on base material, volatilizes that in the ultraviolet light polymerization device, to carry out illumination behind the solvent crosslinked, and the irradiation energy of UV-light self-crosslinking is 500～600mJ.Through test, the degree of crosslinking of pressure sensitive adhesive adhesion coating is 80% behind the ultraviolet light irradiation; The tack of pressure-sensitive adhesive tape is 16 in (ball number), holds viscosity for greater than 72 hours, and 180 ° of stripping strengths are 2.8N/25mm.
Claims (7)
1. a single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive is characterized in that, this emulsion pressure-sensitive adhesive is made through the free radical emulsion thermopolymerization is synthetic by the raw material of following component and weight part content:
Described UV-light reactive monomer is selected from one or more in 4-(2-hydroxyl-3-allyloxy-propoxy-) UVNUL MS-40,4-(2-hydroxyl-3-acryloxy-propoxy-) UVNUL MS-40,4-(2-hydroxy-3-methyl acryloxy-propoxy-) UVNUL MS-40,4-(2-acryloxy-ethyl) UVNUL MS-40,4-(2-methacryloxy-ethyl) UVNUL MS-40, the 4-acryloxy UVNUL MS-40;
Described photo-crosslinking function monomer is selected from one or more in NSC 20949, Propenoic acid, 2-methyl, isobutyl ester, isodecyl acrylate, isodecyl methacrylate, Isooctyl acrylate monomer, Isooctyl methacrylate, dimethylaminoethyl methacrylate, vinylformic acid-2-hydroxypropyl acrylate or the methylacrylic acid-2-hydroxypropyl acrylate;
Described other single functionality monomers are selected from methyl acrylate; TEB 3K; Ethyl propenoate; Jia Jibingxisuanyizhi; Bing Xisuandingzhi; NSC 20956; Lauryl acrylate; Lauryl methacrylate(LMA); Vinyl-acetic ester; Vinylbenzene; Vinylformic acid; Methylacrylic acid; Vinylformic acid-2-hydroxyl ethyl ester; 2-hydroxyethyl methacrylate; Glycidyl acrylate; SY-Monomer G; Methylene-succinic acid; Dibutyl maleate; Dioctyl maleate; Acrylic amide; In USAF RH-1 or the vinyl cyanide 3～8 kinds;
Described emulsifying agent is selected from one or more in sodium laurylsulfonate, X 2073, sodium lauryl sulphate, polyoxyethylene nonylphenol ammonium sulfate, polyoxyethylene nonylphenol, polyoxyethylene octylphenol ether or the sulfo-succinic acid ethoxy ethanol monoester disodium salt.
2. a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive according to claim 1 is characterized in that the raw material of described emulsion pressure-sensitive adhesive comprises following component and weight part content:
3. a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive according to claim 1 is characterized in that the raw material of described emulsion pressure-sensitive adhesive comprises following component and weight part content:
4. according to each described a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive in the claim 1～3; It is characterized in that described initiator is selected from Potassium Persulphate, ammonium persulphate, Sodium Persulfate, tertbutyl peroxide, hydrogen peroxide or sodium formaldehyde sulphoxylate.
5. according to each described a kind of single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive in the claim 1～3, it is characterized in that described chain-transfer agent is selected from n-dodecyl mercaptan, uncle's lauryl mercaptan or mercaptoethanol; Described pH regulator agent is selected from sodium hydrogencarbonate, bicarbonate of ammonia, SODIUM PHOSPHATE, MONOBASIC or primary ammonium phosphate; Described dispersion medium is a deionized water.
6. the preparation method of a single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive as claimed in claim 1; It is characterized in that, obtain pre-emulsion at room temperature stirring 20min～50min in UV-light reactive monomer, photo-crosslinking function monomer, other single functionality monomers, emulsifying agent, chain-transfer agent and the part dispersion medium input reaction kettle; 5wt%～the 15wt% of pre-emulsion, 15wt%～25wt%, pH regulator agent and all the other dispersion medium of initiator are dropped in another reaction kettle,, make it to take place seeded emulsion polymerization at 75 ℃～90 ℃ following stirring reaction 0.5h～2h; Speed with 1/5s in seed emulsion drips the residue pre-emulsion, and the speed of 1/min drips the residue initiator, and pre-emulsion 1.5h～3.5h dropwises, and initiator 2h～5h dropwises; Pre-emulsion and initiator dropwise continued reaction 3h～6h, obtain product after the cooling.
7. the application of a single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive as claimed in claim 1; It is characterized in that; Single component UV-light Self-Crosslinking Acrylate Copolymer Emulsion pressure-sensitive adhesive is coated on the product base material to be coated; Volatilize and in the ultraviolet light polymerization device, carry out that illumination is crosslinked to get final product behind the solvent, the irradiation energy of UV-light self-crosslinking is 200mJ～2000mJ.
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| CN 201110201279 CN102304333B (en) | 2011-07-18 | 2011-07-18 | Single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive and synthetic method thereof as well as application thereof |
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| CN 201110201279 CN102304333B (en) | 2011-07-18 | 2011-07-18 | Single-component ultraviolet light self-crosslinking type acrylate copolymer emulsion pressure-sensitive adhesive and synthetic method thereof as well as application thereof |
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| CN102304333B true CN102304333B (en) | 2012-12-05 |
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| CN102660205B (en) * | 2012-06-01 | 2013-10-30 | 苏州联科合成材料有限公司 | Acrylate hot melt adhesive composition and preparation method of hot melt adhesive by UV (ultraviolet) crosslinking |
| CN102924650A (en) * | 2012-11-05 | 2013-02-13 | 河北智生环保科技有限公司 | Ultraviolet cross-linking copolymer |
| CN103694836B (en) * | 2013-12-31 | 2016-01-20 | 张锦碧 | A kind of UV photo-cured coating finish paint and preparation method thereof |
| CN104031282A (en) * | 2014-06-09 | 2014-09-10 | 吉安市青原区庆丰过滤器材有限公司 | Polyvinylidene fluoride (PVDF) microfiltration membrane surface light graft modification method |
| CN104263029A (en) * | 2014-09-04 | 2015-01-07 | 青阳县双龙涂料有限责任公司 | Anti-cracking and waterproof coating for wall body |
| CN104673143B (en) * | 2015-02-05 | 2017-06-13 | 河北智生环保科技有限公司 | It is a kind of can ultraviolet light cross-linking ionomer type pressure sensitive adhesive and preparation method |
| WO2016153592A1 (en) * | 2015-03-20 | 2016-09-29 | Henkel IP & Holding GmbH | Photoinitiators that are polymeric or polymerizable for use in uv curable pressure sensitive adhesives |
| WO2016158332A1 (en) * | 2015-03-30 | 2016-10-06 | 三菱瓦斯化学株式会社 | Resin composition and molded object obtained therefrom |
| CN108138020B (en) * | 2015-09-30 | 2020-12-29 | 3M创新有限公司 | Curable and cured adhesive compositions |
| WO2017138609A1 (en) * | 2016-02-10 | 2017-08-17 | 積水フーラー株式会社 | Uv curable acrylic polymer and method for producing same, and uv curable hot melt adhesive |
| CN111072847B (en) * | 2019-12-31 | 2022-11-18 | 苏州赛伍应用技术股份有限公司 | Polyacrylate, acrylic acid foam composition, acrylic acid foam adhesive tape and preparation method and application thereof |
| CN114874750A (en) * | 2022-06-16 | 2022-08-09 | 东莞市奥嘉特高分子材料有限公司 | Water-based adhesive for bonding rubber and metal and preparation method thereof |
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| CN1359398A (en) * | 1998-07-31 | 2002-07-17 | 美利肯研究公司 | Polymer latex for uy absorption on different substrates |
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| CN1359398A (en) * | 1998-07-31 | 2002-07-17 | 美利肯研究公司 | Polymer latex for uy absorption on different substrates |
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