CN117683482B - Low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive, preparation method thereof and adhesive tape - Google Patents
Low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive, preparation method thereof and adhesive tape Download PDFInfo
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- CN117683482B CN117683482B CN202311535248.3A CN202311535248A CN117683482B CN 117683482 B CN117683482 B CN 117683482B CN 202311535248 A CN202311535248 A CN 202311535248A CN 117683482 B CN117683482 B CN 117683482B
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 81
- -1 acrylic ester Chemical class 0.000 title claims abstract description 48
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000178 monomer Substances 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000945 filler Substances 0.000 claims abstract description 35
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 25
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 22
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 17
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 14
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 12
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- 235000011187 glycerol Nutrition 0.000 claims abstract description 11
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 5
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-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 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 claims description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 3
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical compound CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 abstract description 13
- 239000011127 biaxially oriented polypropylene Substances 0.000 abstract description 13
- 150000001252 acrylic acid derivatives Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 16
- 239000000463 material Substances 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 7
- 238000003851 corona treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 4
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical group CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 3
- 125000005396 acrylic acid ester group Chemical group 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of pressure-sensitive adhesives, and discloses a low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive, a preparation method thereof and an adhesive tape. The aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 40-50 parts of monomer A, 8-15 parts of monomer B, 4-10 parts of monomer C, 2-5 parts of monomer D, 1-5 parts of cross-linking agent, 10-20 parts of modified filler, 2-18 parts of emulsifier and 10-50 parts of water; monomer A is acrylic ester; monomer B is methyl substituted acrylate; monomer C contains an epoxy group; monomers D include hydroxyethyl acrylate and dihydroxypolydimethylsiloxane; the preparation process of the modified filler comprises the following steps: mixing nano calcium carbonate, nano yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerin. The pressure-sensitive adhesive is arranged on the BOPP substrate to form a pressure-sensitive adhesive layer, so that an adhesive tape is formed, and the adhesive tape is used in a low-temperature environment and has little noise.
Description
Technical Field
The invention belongs to the technical field of pressure-sensitive adhesives, and particularly relates to a low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive, a preparation method thereof and an adhesive tape.
Background
Glue is widely used, typically for bonding different objects together. The conventional adhesive tape generally uses BOPP (biaxially oriented polypropylene) as a base material, and then a pressure-sensitive adhesive layer is provided on one side of the base material. The pressure-sensitive adhesive has relatively strong bonding capability to the BOPP film, so that large noise is generated when the adhesive tape is unreeled, for example, the noise generated at the normal temperature at the unreeling or unreeling speed of 40m/min often exceeds 110dBA. And the magnitude of the noise is largely dependent on the composition characteristics of the pressure-sensitive adhesive layer.
In the prior art, a release layer is generally arranged on the other side of the BOPP substrate and used for reducing noise when the adhesive tape is unreeled. However, although this can play the effect of noise reduction, the setting of release layer not only increases manufacturing cost, but also can use a large amount of organic solvents, and the use of a large amount of organic solvents for environmental pollution is serious, more influences constructor's health.
Even though some adhesive tapes without release layers have certain noise reduction effect at present, the adhesive tapes often need to have certain noise reduction effect at the temperature of more than 23 ℃, but the noise is still more than 100 dBA. The temperature of the adhesive tape is often required to be below 20 ℃ and the noise pollution is further increased when the adhesive tape is used at the temperature. Whereas the peel strength of the aqueous pressure-sensitive adhesives of the prior art is generally difficult to exceed 6N/25mm.
Therefore, it is desirable to provide a new pressure-sensitive adhesive, which is disposed on a BOPP substrate to form a tape, so that the release layer is not needed, the environmental protection is improved, and the pressure-sensitive adhesive still has little noise even if used in a low-temperature environment.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the prior art described above. Therefore, the invention provides the low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive, the preparation method thereof and the adhesive tape, wherein the pressure-sensitive adhesive is arranged on the BOPP substrate to form the pressure-sensitive adhesive layer, so that the adhesive tape is formed, the release layer is not required to be used, the environment friendliness is improved, and the adhesive tape still has little noise even if the adhesive tape is used in a low-temperature environment (lower than 20 ℃, for example, 5-15 ℃).
The invention is characterized in that: the invention takes 40-50 parts of monomer A (acrylic ester), 8-15 parts of monomer B (methyl substituted acrylic ester), 4-10 parts of monomer C (containing epoxy group), 2-5 parts of monomer D (hydroxyethyl acrylate and dihydroxy polydimethylsiloxane), 1-5 parts of cross-linking agent, 10-20 parts of modified filler, emulsifying agent and water as raw materials to prepare the water acrylic ester pressure-sensitive adhesive. The monomer A, the monomer B and the monomer D belong to basic monomers and are used for synthesizing basic resin, the monomer C and the monomer D introduce corresponding functional groups, particularly the monomer D contains hydroxyethyl acrylate and dihydroxypolydimethylsiloxane simultaneously, the monomer D contains hydroxyl groups for crosslinking reaction, the bonding strength is improved, particularly the dihydroxypolydimethylsiloxane is used, a siloxane structure is introduced and is combined with modified fillers, wherein the inorganic fillers such as nano calcium carbonate and nano yttrium oxide are modified by the polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerin, so that the inorganic fillers are better compatible with the basic resin, and the noise of the water-based acrylate pressure-sensitive adhesive at low temperature is remarkably reduced. In addition, the invention belongs to an aqueous adhesive, which has environmental protection. The aqueous acrylic ester pressure-sensitive adhesive is coated on the surface of a substrate, and after drying, the formed pressure-sensitive adhesive layer has good adhesion to the substrate, and is rolled after being cooled to room temperature. And the pressure-sensitive adhesive layer is rolled after being cooled to room temperature, so that the adhesive force of the pressure-sensitive adhesive layer to the other surface of the base material BOPP is greatly reduced, and the noise is remarkably reduced when the pressure-sensitive adhesive layer is unreeled. This is mainly due to the co-action of the dihydroxypolydimethylsiloxane with the modified filler during the preparation of the pressure sensitive adhesive.
The first aspect of the invention provides a low-temperature-resistant aqueous acrylate pressure-sensitive adhesive.
Specifically, the low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 40-50 parts of monomer A, 8-15 parts of monomer B, 4-10 parts of monomer C, 2-5 parts of monomer D, 1-5 parts of cross-linking agent, 10-20 parts of modified filler, 2-18 parts of emulsifier and 10-50 parts of water;
The monomer A is acrylic ester;
The monomer B is methyl substituted acrylic ester;
the monomer C contains an epoxy group;
The monomer D comprises hydroxyethyl acrylate and dihydroxypolydimethylsiloxane;
The preparation process of the modified filler comprises the following steps: mixing nano calcium carbonate, nano yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerol to prepare the modified filler.
Preferably, the preparation process of the modified filler comprises the following steps: nanometer calcium carbonate, nanometer yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerin are mixed according to the weight ratio of 10: (0.1-1): (4-10): (1-5): (20-50): (20-40), and drying to obtain the modified filler.
Further preferably, the weight ratio of the nano calcium carbonate to the nano yttrium oxide to the poly (hydroxyethyl methacrylate) to the silane coupling agent to the water to the glycerol is 10: (0.3-0.8): (4-8): (1-4): (25-45): (20-40).
Preferably, the monomer A is at least one selected from butyl acrylate, isooctyl acrylate, ethyl acrylate and hydroxyethyl acrylate;
Preferably, the monomer B is at least one selected from methyl methacrylate, ethyl methacrylate, butyl methacrylate, and isopropyl methacrylate.
Preferably, the monomer C is at least one selected from glycidyl methacrylate and glycidyl acrylate.
Preferably, the crosslinking agent is at least one selected from isocyanate, sodium hexafluorophosphate and potassium persulfate.
Preferably, the isocyanate is selected from toluene diisocyanate and/or hexamethylene diisocyanate.
Preferably, the emulsifier is at least one selected from sodium dodecyl benzene sulfonate, cetyltrimethylammonium bromide and polyvinylpyrrolidone.
Preferably, the aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 42-48 parts of monomer A, 10-12 parts of monomer B, 4-8 parts of monomer C, 2-5 parts of monomer D, 1-3 parts of cross-linking agent, 12-16 parts of modified filler, 3-15 parts of emulsifier and 30-50 parts of water.
Preferably, the aqueous acrylate pressure sensitive adhesive further comprises an ultraviolet aging resistant agent, such as nano titanium dioxide.
The second aspect of the invention provides a preparation method of a low-temperature-resistant aqueous acrylate pressure-sensitive adhesive.
Specifically, the preparation method of the low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following steps:
weighing the raw material components, mixing the monomer A, the monomer B, a part of cross-linking agent, an emulsifying agent and water, stirring for reaction, then adding the monomer C, the monomer D and the rest components, continuously stirring for reaction to obtain a glue solution, and defoaming to obtain the water-based acrylate pressure-sensitive adhesive.
Preferably, the temperature of the stirring reaction is 60-90 ℃, and the time of the stirring reaction is 4-5 hours.
Preferably, the deaeration is a conventional operation in the art, for example, dispersion deaeration using a deaeration machine.
A third aspect of the invention provides an adhesive tape.
An adhesive tape comprises a substrate and a pressure-sensitive adhesive layer formed on one side of the substrate by the aqueous acrylic pressure-sensitive adhesive.
Preferably, the substrate is BOPP.
A method of making an adhesive tape comprising the steps of:
Coating the aqueous acrylic ester pressure-sensitive adhesive on one surface of a base material, drying, cooling, then carrying out corona treatment on the other surface of the base material, and rolling to obtain the adhesive tape.
Preferably, the aqueous acrylate pressure sensitive adhesive is coated on one surface of the substrate in an amount of 15 to 50g/m 2, more preferably 20 to 40g/m 2.
Preferably, the coating speed is 100-130m/min, more preferably 110-120m/min.
Preferably, the temperature of the drying is 90-100 ℃, and the drying time is 0.5-2 minutes.
Preferably, the thickness of the substrate is 23-45 μm, more preferably 25-40 μm.
Preferably, a corona processor is used in the corona treatment, and the working power of the corona processor is 4.0-4.8kw.
Preferably, after winding, the method further comprises slitting treatment.
Compared with the prior art, the invention has the following beneficial effects:
The invention takes monomer A (acrylic ester), monomer B (methyl substituted acrylic ester), monomer C (containing epoxy group), monomer D (hydroxyethyl acrylate and dihydroxy polydimethylsiloxane), cross-linking agent, modified filler, emulsifying agent and water as raw materials, and reasonably selects the dosage of each component to prepare the water-based acrylic ester pressure-sensitive adhesive. The monomer A, the monomer B and the monomer D belong to basic monomers and are used for synthesizing basic resin, the monomer C and the monomer D introduce corresponding functional groups, particularly the monomer D contains hydroxyethyl acrylate and dihydroxypolydimethylsiloxane simultaneously, the monomer D contains hydroxyl groups for crosslinking reaction, the bonding strength is improved, particularly the dihydroxypolydimethylsiloxane is used, a siloxane structure is introduced and is combined with modified fillers, wherein the inorganic fillers such as nano calcium carbonate and nano yttrium oxide are modified by the polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerin, so that the inorganic fillers are better compatible with the basic resin, and the noise of the water-based acrylate pressure-sensitive adhesive at low temperature is remarkably reduced. In addition, the invention belongs to an aqueous adhesive, which has environmental protection. The aqueous acrylic ester pressure-sensitive adhesive is coated on the surface of a substrate, and after drying, the formed pressure-sensitive adhesive layer has good adhesion to the substrate, and is rolled after being cooled to room temperature. And the pressure-sensitive adhesive layer is rolled after being cooled to room temperature, so that the adhesive force of the pressure-sensitive adhesive layer to the other surface of the base material BOPP is greatly reduced, and the noise is remarkably reduced when the pressure-sensitive adhesive layer is unreeled. This is mainly due to the co-action of the dihydroxypolydimethylsiloxane with the modified filler during the preparation of the pressure sensitive adhesive.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples will be presented. It should be noted that the following examples do not limit the scope of the invention.
The starting materials, reagents or apparatus used in the following examples are all available from conventional commercial sources or may be obtained by methods known in the art unless otherwise specified.
Example 1: preparation of aqueous acrylic ester pressure-sensitive adhesive
The low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 45 parts of monomer A, 10 parts of monomer B, 6 parts of monomer C, 4 parts of monomer D, 3 parts of cross-linking agent, 15 parts of modified filler, 5 parts of emulsifier (4 parts of sodium dodecyl benzene sulfonate, 1 part of hexadecyl trimethyl ammonium bromide) and 40 parts of water;
monomer A is butyl acrylate;
monomer B is ethyl methacrylate;
Monomer C is glycidyl methacrylate;
the monomer D is prepared from hydroxyethyl acrylate and dihydroxyl polydimethylsiloxane according to the weight ratio of 1:1, and the proportion of the components is 1;
The cross-linking agent is prepared from toluene diisocyanate, sodium hexafluorophosphate and potassium persulfate according to the weight ratio of 1:1:1, and the proportion of the components is 1;
the preparation process of the modified filler comprises the following steps: nanometer calcium carbonate, nanometer yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent KH560, water and glycerin are mixed according to the weight ratio of 10:0.6:4.5:3.5:25:25, the stirring speed during mixing is 400 rpm, the mixing time is 50 minutes, and the modified filler is prepared by vacuum drying.
A preparation method of a low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following steps:
Weighing the raw material components, mixing the monomer A, the monomer B, the potassium persulfate, the emulsifier and the water, stirring for reaction at 300 r/min, wherein the stirring temperature is 80 ℃, the stirring time is 0.5 hour, then adding the monomer C, the monomer D and the rest components, continuously stirring for reaction for 4.5 hours, obtaining glue solution, and defoaming to obtain the water-based acrylate pressure-sensitive adhesive.
An adhesive tape comprising a BOPP substrate (thickness 40 μm) and a pressure-sensitive adhesive layer formed on one side of the substrate by the above aqueous acrylic pressure-sensitive adhesive.
A method of making an adhesive tape comprising the steps of:
The aqueous acrylic acid ester pressure-sensitive adhesive is coated on one surface of a base material (the coating amount is 35g/m 2, the coating speed is 120 m/min), dried for 0.5 min at 100 ℃, cooled to normal temperature, then corona treatment is carried out on the other surface of the base material, the working power of a corona processor is 4.6kw, and the adhesive tape is prepared by winding and slitting.
Example 2: preparation of aqueous acrylic ester pressure-sensitive adhesive
The low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 42 parts of monomer A, 8 parts of monomer B, 5 parts of monomer C, 3 parts of monomer D, 3 parts of cross-linking agent, 12 parts of modified filler, 4 parts of emulsifier (2 parts of sodium dodecyl benzene sulfonate and 2 parts of polyvinylpyrrolidone) and 38 parts of water;
monomer A is isooctyl acrylate;
monomer B is butyl methacrylate;
Monomer C is glycidyl acrylate;
The monomer D is prepared from hydroxyethyl acrylate and dihydroxyl polydimethylsiloxane according to the weight ratio of 0.5:1, and the proportion of the components is 1;
The cross-linking agent is prepared from toluene diisocyanate, sodium hexafluorophosphate and potassium persulfate according to the weight ratio of 1:1:1, and the proportion of the components is 1;
The preparation process of the modified filler comprises the following steps: nanometer calcium carbonate, nanometer yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent KH570, water and glycerin are mixed according to the weight ratio of 10:0.4:5.2:2.5:30:25, the stirring speed during mixing is 300 rpm, the mixing time is 60 minutes, and vacuum drying is carried out to obtain the modified filler.
A preparation method of a low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following steps:
Weighing the raw material components, mixing the monomer A, the monomer B, the potassium persulfate, the emulsifier and the water, stirring for reaction at 200 r/min, wherein the stirring temperature is 85 ℃, the stirring time is 0.5 hour, then adding the monomer C, the monomer D and the rest components, continuously stirring for reaction for 3.5 hours, obtaining glue solution, and defoaming to obtain the water-based acrylate pressure-sensitive adhesive.
An adhesive tape comprising a BOPP substrate (thickness 40 μm) and a pressure-sensitive adhesive layer formed on one side of the substrate by the above aqueous acrylic pressure-sensitive adhesive.
A method of making an adhesive tape comprising the steps of:
The aqueous acrylic acid ester pressure-sensitive adhesive is coated on one surface of a base material (the coating amount is 35g/m 2, the coating speed is 110 m/min), dried for 0.5 min at 100 ℃, cooled to normal temperature, then corona treatment is carried out on the other surface of the base material, the working power of a corona processor is 4.8kw, and the adhesive tape is prepared by winding and slitting.
Example 3: preparation of aqueous acrylic ester pressure-sensitive adhesive
The low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following raw material components in parts by weight: 50 parts of monomer A, 15 parts of monomer B, 9 parts of monomer C, 5 parts of monomer D, 3.5 parts of cross-linking agent, 14 parts of modified filler, 4 parts of emulsifier (3 parts of sodium dodecyl benzene sulfonate, 1 part of hexadecyl trimethyl ammonium bromide) and 40 parts of water;
Monomer A is ethyl acrylate;
monomer B is isopropyl methacrylate;
Monomer C is glycidyl methacrylate;
the monomer D is prepared from hydroxyethyl acrylate and dihydroxyl polydimethylsiloxane according to the weight ratio of 2:3, the proportion of the components is as follows;
the cross-linking agent is prepared from toluene diisocyanate, sodium hexafluorophosphate and potassium persulfate according to the weight ratio of 1:1: 1.5;
The preparation process of the modified filler comprises the following steps: nanometer calcium carbonate, nanometer yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent KH560, water and glycerin are mixed according to the weight ratio of 10:0.5:5.5:2.0:25:25, the stirring speed during mixing is 300 rpm, the mixing time is 60 minutes, and vacuum drying is carried out to obtain the modified filler.
A preparation method of a low-temperature-resistant aqueous acrylic ester pressure-sensitive adhesive comprises the following steps:
Weighing the raw material components, mixing the monomer A, the monomer B, the potassium persulfate, the emulsifier and the water, stirring for reaction at 250 r/min, wherein the stirring temperature is 84 ℃, the stirring time is 0.6 hour, then adding the monomer C, the monomer D and the rest components, continuously stirring for reaction for 4.4 hours, obtaining glue solution, and defoaming to obtain the water-based acrylate pressure-sensitive adhesive.
An adhesive tape comprising a BOPP substrate (thickness 40 μm) and a pressure-sensitive adhesive layer formed on one side of the substrate by the above aqueous acrylic pressure-sensitive adhesive.
A method of making an adhesive tape comprising the steps of:
The aqueous acrylic acid ester pressure-sensitive adhesive is coated on one surface of a base material (the coating amount is 35g/m 2, the coating speed is 120 m/min), dried for 0.5 min at 100 ℃, cooled to normal temperature, then corona treatment is carried out on the other surface of the base material, the working power of a corona processor is 4.8kw, and the adhesive tape is prepared by winding and slitting.
Comparative example 1
In comparison with example 1, the dihydroxypolydimethylsiloxane was replaced by an equivalent amount of hydroxyethyl acrylate in comparative example 1, i.e., monomer D in comparative example 1 consisted exclusively of hydroxyethyl acrylate, the remainder of the composition and procedure being identical to example 1.
Comparative example 2
In comparison with example 1, 15 parts of modified filler in example 1 was replaced with 15 parts of nano calcium carbonate in comparative example 2, i.e., the filler was not modified in comparative example 2, and the remaining composition and process were the same as in example 1.
Comparative example 3
In comparison with example 1, the nano yttrium oxide was replaced with an equivalent amount of nano titanium oxide and the polyhydroxyethyl methacrylate of example 1 was replaced with an equivalent amount of sodium polyacrylate in comparative example 3, and the remaining composition and procedure were the same as in example 1.
Product effect test
1. Noise testing
The adhesive tapes prepared in example 1 and comparative examples 1 to 3 were unwound at an ambient temperature of 5℃and 15℃and an unwinding speed of 40m/min, and the noise level generated during the unwinding was measured, and the results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the corresponding unwind noise for the tape prepared in example 1 is significantly less than that for comparative examples 1-3. From the results of comparative examples 1 to 3, it can be seen that the dihydroxy polydimethylsiloxane in the monomer D has a very significant influence on the noise of the adhesive tape, and that the lack of the dihydroxy polydimethylsiloxane in comparative example 1 results in failure to introduce a siloxane structure, resulting in weak correlation between the components, and thus a significant increase in the noise of the adhesive tape. Comparative example 2 did not modify the filler, so that the compatibility of the filler in the pressure-sensitive adhesive was deteriorated, thereby also increasing noise when the tape was unwound. The modified filler was prepared in comparative example 3, and the noise was increased when the tape was unwound by changing the preparation process of the modified filler, and by lacking the electronic properties of yttrium oxide (the magnitude of noise was related to vibration of the substance, and vibration was further related to the internal electronic properties of the substance).
The corresponding unwind noise for examples 2-3 is similar to example 1.
2. Low temperature bond strength test
The tapes of examples 1 to 2 and comparative example 3 were tested for 180℃peel strength at 0℃and 25℃of the same substrate with reference to the standard GB/2792-2014, and the results are shown in Table 2.
TABLE 2
As can be seen from Table 2, the peel strength of the tapes of examples 1-2 at 0deg.C was very small, while the peel strength of the tapes of comparative example 3 at 0deg.C was significantly lower than that at 25deg.C. Therefore, the adhesive tape disclosed by the invention has good low temperature resistance, and the peel strength is obviously superior to that of the aqueous pressure-sensitive adhesive of the same type (6N/25 mm) in the prior art.
Claims (11)
1. The water-based acrylic ester pressure-sensitive adhesive is characterized by comprising the following raw material components in parts by weight: 40-50 parts of monomer A, 8-15 parts of monomer B, 4-10 parts of monomer C, 2-5 parts of monomer D, 1-5 parts of cross-linking agent, 10-20 parts of modified filler, 2-18 parts of emulsifier and 10-50 parts of water;
The monomer A is acrylic ester;
The monomer B is methyl substituted acrylic ester;
the monomer C contains an epoxy group;
The monomer D comprises hydroxyethyl acrylate and dihydroxypolydimethylsiloxane;
The preparation process of the modified filler comprises the following steps: mixing nano calcium carbonate, nano yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerol to prepare the modified filler.
2. The aqueous acrylate pressure sensitive adhesive of claim 1 wherein the modified filler is prepared by the process of: nanometer calcium carbonate, nanometer yttrium oxide, polyhydroxyethyl methacrylate, a silane coupling agent, water and glycerin are mixed according to the weight ratio of 10: (0.1-1): (4-10): (1-5): (20-50): (20-40), and drying to obtain the modified filler.
3. The aqueous acrylate pressure sensitive adhesive according to claim 1 wherein the monomer a is at least one selected from butyl acrylate, isooctyl acrylate, ethyl acrylate, and hydroxyethyl acrylate.
4. The aqueous acrylate pressure-sensitive adhesive according to claim 1, wherein the monomer B is at least one selected from the group consisting of methyl methacrylate, ethyl methacrylate, butyl methacrylate, and isopropyl methacrylate.
5. The aqueous acrylate pressure sensitive adhesive according to claim 1 wherein the monomer C is at least one selected from glycidyl methacrylate and glycidyl acrylate.
6. The aqueous acrylate pressure sensitive adhesive according to claim 1 wherein the crosslinking agent is selected from at least one of isocyanate, sodium hexafluorophosphate, potassium persulfate.
7. The aqueous acrylate pressure-sensitive adhesive according to any one of claims 1 to 6, comprising the following raw material components in parts by weight: 42-48 parts of monomer A, 10-12 parts of monomer B, 4-8 parts of monomer C, 2-5 parts of monomer D, 1-3 parts of cross-linking agent, 12-16 parts of modified filler, 3-15 parts of emulsifier and 30-50 parts of water.
8. The method for preparing the aqueous acrylic pressure-sensitive adhesive according to any one of claims 1 to 7, comprising the steps of:
weighing the raw material components, mixing the monomer A, the monomer B, a part of cross-linking agent, an emulsifying agent and water, stirring for reaction, then adding the monomer C, the monomer D and the rest components, continuously stirring for reaction to obtain a glue solution, and defoaming to obtain the water-based acrylate pressure-sensitive adhesive.
9. An adhesive tape comprising a substrate and a pressure-sensitive adhesive layer formed on one side of the substrate from the aqueous acrylate pressure-sensitive adhesive of any one of claims 1 to 7.
10. The method of preparing the adhesive tape of claim 9, comprising the steps of:
The aqueous acrylic pressure-sensitive adhesive according to any one of claims 1 to 7 is coated on one surface of a substrate, dried, cooled, and then the other surface of the substrate is corona-treated and wound up to prepare the adhesive tape.
11. The method of claim 10, wherein the aqueous acrylate pressure sensitive adhesive is coated on one surface of the substrate in an amount of 15 to 50g/m 2.
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| CN115926692A (en) * | 2022-12-29 | 2023-04-07 | 江阴通利光电科技有限公司 | Degradable water-based acrylate pressure-sensitive adhesive, degradable adhesive tape and preparation method |
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| JP2002012842A (en) * | 2000-06-30 | 2002-01-15 | Nitto Denko Corp | Acrylic thermoset adhesive and adhesive sheets |
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