CN114163933A - Modified acrylate pressure-sensitive adhesive and preparation method thereof - Google Patents
Modified acrylate pressure-sensitive adhesive and preparation method thereof Download PDFInfo
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- CN114163933A CN114163933A CN202111455834.8A CN202111455834A CN114163933A CN 114163933 A CN114163933 A CN 114163933A CN 202111455834 A CN202111455834 A CN 202111455834A CN 114163933 A CN114163933 A CN 114163933A
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- acrylate
- sensitive adhesive
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- pressure
- modified acrylate
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 83
- 150000001252 acrylic acid derivatives Chemical class 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 15
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims abstract description 15
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000806 elastomer Substances 0.000 claims abstract description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 19
- FWLDHHJLVGRRHD-UHFFFAOYSA-N decyl prop-2-enoate Chemical compound CCCCCCCCCCOC(=O)C=C FWLDHHJLVGRRHD-UHFFFAOYSA-N 0.000 claims description 17
- MDYPDLBFDATSCF-UHFFFAOYSA-N nonyl prop-2-enoate Chemical compound CCCCCCCCCOC(=O)C=C MDYPDLBFDATSCF-UHFFFAOYSA-N 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 12
- -1 acrylic ester Chemical class 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 230000032683 aging Effects 0.000 description 7
- 239000002904 solvent Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000003878 thermal aging Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- QSMOHLASMMAGIB-UHFFFAOYSA-N butyl prop-2-enoate;prop-2-enenitrile Chemical compound C=CC#N.CCCCOC(=O)C=C QSMOHLASMMAGIB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- 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
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/354—Applications of adhesives in processes or use of adhesives in the form of films or foils for automotive applications
-
- 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)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a modified acrylate pressure-sensitive adhesive, which comprises the following raw materials: 70-90 parts of acrylate, 10-20 parts of acrylic acid, 5-12 parts of N-vinyl pyrrolidone and 6-10 parts of rubber elastomer; 18-26 parts of trimethylolpropane trimethacrylate; 10-18 parts of tackifying resin and 5-8 parts of acrylonitrile. The modified acrylate pressure-sensitive adhesive has extremely high weather resistance, extremely high peel strength and cohesion, and can be used for automobile assembly lines to greatly improve the production efficiency.
Description
Technical Field
The invention belongs to the technical field of adhesives, and particularly relates to a modified acrylate pressure-sensitive adhesive and a preparation method thereof.
Background
The pressure-sensitive adhesive is the product with the largest dosage and the widest application range in the adhesive, and products of the pressure-sensitive adhesive are almost spread in various fields of packaging, automobiles, transportation, communication, electric appliances, building materials, machinery, aviation, light industry, sanitation and the like.
In the assembly process of modern automobiles, materials such as pressure-sensitive adhesive are used for fixing permanent parts such as car surface labels, trim strips and side strips for a long time, the traditional lagging process such as nailing, riveting, welding and the like is replaced, but the needed pressure-sensitive adhesive has extremely high peel strength and cohesion and excellent performances such as water resistance, cold resistance, heat resistance, aging resistance and solvent resistance, and the existing pressure-sensitive adhesive is difficult to give consideration to the high peel strength, water resistance, cold resistance, ultraviolet resistance and heat resistance.
Disclosure of Invention
The invention aims to solve the problem that multiple performances of a pressure-sensitive adhesive in the prior art are difficult to be simultaneously considered, and provides a modified acrylate pressure-sensitive adhesive which is high in peel strength and simultaneously has the performances of water resistance, cold resistance, heat resistance, aging resistance, solvent resistance and the like.
In order to achieve the purposes, the specific scheme is as follows:
a modified acrylate pressure-sensitive adhesive comprises the following raw materials: 70-90 parts of acrylate, 10-20 parts of acrylic acid, 5-12 parts of N-vinyl pyrrolidone and 6-10 parts of rubber elastomer; 18-26 parts of trimethylolpropane trimethacrylate; 10-18 parts of tackifying resin and 5-8 parts of acrylonitrile.
In the technical scheme of the invention, the acrylate is preferably a mixture of butyl acrylate, nonyl acrylate and decyl acrylate.
According to the technical scheme of the invention, the acrylic ester is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in parts by weight of 3-5:2-3: 1.
According to the technical scheme of the invention, the acrylic ester is a mixture of 9:5:2 parts by weight of butyl acrylate, nonyl acrylate and decyl acrylate.
According to the technical scheme of the invention, the ratio of the acrylic ester to the acrylonitrile in parts by weight is preferably 12-13: 1.
According to the technical scheme of the invention, the weight part ratio of the acrylic acid to the N-vinyl pyrrolidone is preferably 1: 5-12.
According to the technical scheme of the invention, the rubber elastomer and the trimethylolpropane trimethacrylate preferably have the weight part ratio of 1: 2-3.
Preferably, the reusable pressure-sensitive adhesive is prepared by the following steps: 1) preparing acrylic ester, uniformly mixing butyl acrylate, nonyl acrylate and decyl acrylate according to a proportion, then adding acrylonitrile into the mixture for mixing, heating to 68-80 ℃, and keeping the temperature for 10-30 min; 2) preparing an acrylic acid complex, namely mixing acrylic acid and N-vinyl pyrrolidone according to a proportion, then adding a rubber elastomer and trimethylolpropane trimethacrylate, and uniformly mixing to obtain the acrylic acid complex; 3) mixing the acrylate prepared in the step 1) with tackifying resin, then adding the acrylic acid complex prepared in the step 2), uniformly mixing, and irradiating for 5-15min under the ultraviolet light with the intensity of 3000LEX to prepare the modified acrylate pressure-sensitive adhesive.
Preferably, the prepared modified acrylate pressure-sensitive adhesive is placed into a coating machine, the coating machine coats the modified acrylate pressure-sensitive adhesive on a release substrate, and release paper is attached to the other side of the release substrate to prepare the modified acrylate pressure-sensitive adhesive tape.
Preferably, the modified acrylate pressure sensitive adhesive tape is used for permanent fixing assembly of automobile surfaces.
Compared with the prior art, the invention has the following technical effects:
1. the modified acrylate pressure-sensitive adhesive has extremely high weather resistance, extremely high peel strength and cohesion, and can be used for automobile assembly lines to greatly improve the production efficiency.
2. The modified acrylate pressure-sensitive adhesive has extremely high water resistance and fire resistance, and particularly has strong shearing strength and extremely high strength retention rate when being used for bonding materials such as aluminum alloy, steel and the like.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A first part:
example 1
A modified acrylate pressure-sensitive adhesive is prepared by weighing the following raw materials:
70 parts of acrylic ester A; the acrylate A is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in a ratio of 9:5: 2; namely 40 parts by weight of butyl acrylate; 21.5 parts by weight of nonyl acrylate, and 8.5 parts by weight of decyl acrylate;
10 parts by weight of acrylic acid;
5 parts by weight of N-vinyl pyrrolidone;
6 parts by weight of a rubber elastomer;
18 parts by weight of trimethylolpropane trimethacrylate;
10 parts of tackifying resin;
6 parts of acrylonitrile.
Preparing modified acrylate pressure-sensitive adhesive from the following raw materials: 1) preparing acrylic ester, uniformly mixing butyl acrylate, nonyl acrylate and decyl acrylate, adding acrylonitrile into the mixture, mixing, heating to 68-80 ℃, and keeping the temperature for 26 min; 2) preparing an acrylic acid complex, namely mixing acrylic acid and N-vinyl pyrrolidone according to a proportion, then adding a rubber elastomer and trimethylolpropane trimethacrylate, and uniformly mixing to obtain the acrylic acid complex; 3) mixing the acrylate prepared in the step 1) with tackifying resin, then adding the acrylic acid complex prepared in the step 2), uniformly mixing, and irradiating for 12min under the ultraviolet light with the intensity of 3000LEX to prepare the modified acrylate pressure-sensitive adhesive of the embodiment 1.
The modified acrylate pressure-sensitive adhesive of example 1 was placed in a coater, the coater coated the modified acrylate pressure-sensitive adhesive on a release substrate, and release paper was attached to the other side of the release substrate to obtain the modified acrylate pressure-sensitive adhesive tape of example 1.
The formulations of the modified acrylic pressure sensitive adhesives of examples 2-6 are described in the following table, and the preparation method of the modified acrylate pressure sensitive adhesive, i.e., the modified acrylate pressure sensitive adhesive tape, is referred to in example 1.
The shear strength and high-temperature aging performance test tests after different materials are bonded are carried out on the modified acrylate pressure-sensitive adhesives of the 6 embodiments, the average value is obtained in three tests, and the test results are as follows:
the aluminum alloy adhesive article bonded using the pressure sensitive adhesive tape of example 1 was placed at a relative humidity > 90% and aged at a temperature of 60 ℃ and tested for resistance to wet heat aging as follows:
the aluminum alloy adhesive article bonded using the pressure-sensitive adhesive tape of example 1 was placed in water for immersion and tested for water resistance as follows:
the aluminum alloy adhesive pieces bonded using the pressure sensitive tape of example 1 were placed in different media and soaked for 7d and tested for media resistance as follows:
from the test data of the above examples 1 to 6, it can be seen that the modified acrylate pressure-sensitive adhesives of the examples 1 to 6 have outstanding performance in high temperature resistance, thermal aging resistance, water resistance and solvent resistance, and the research and development personnel of my department tested the low temperature resistance of the modified acrylate pressure-sensitive adhesives prepared in the examples 1 to 6, and the test results are as follows:
the modified acrylate pressure-sensitive adhesives of examples 1 to 6 also exhibited excellent low temperature resistance.
A second part:
example 7
A modified acrylate pressure-sensitive adhesive is prepared by weighing the following raw materials:
70 parts by weight of acrylic ester A; the acrylate A is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in a ratio of 9:5: 2; namely 40 parts by weight of butyl acrylate; 21.5 parts by weight of nonyl acrylate, and 8.5 parts by weight of decyl acrylate;
10 parts by weight of acrylic acid;
5 parts by weight of N-vinyl pyrrolidone;
6 parts by weight of a rubber elastomer;
18 parts by weight of trimethylolpropane trimethacrylate;
10 parts of tackifying resin;
6 parts of acrylonitrile.
1) Preparing modified acrylate pressure-sensitive adhesive from the following raw materials: preparing an acrylic acid complex, namely mixing acrylic acid and N-vinyl pyrrolidone according to a proportion, then adding a rubber elastomer and trimethylolpropane trimethacrylate, and uniformly mixing to obtain the acrylic acid complex;
2) uniformly mixing butyl acrylate, nonyl acrylate, decyl acrylate, acrylonitrile, tackifying resin and acrylic acid complex, heating to 68-80 ℃, and keeping the temperature for 26 min; the pressure sensitive adhesive of example 7 was prepared.
The pressure-sensitive adhesive of example 7 was placed in a coater, which coated the pressure-sensitive adhesive on a release substrate, and release paper was attached to the other side of the release substrate to produce the pressure-sensitive adhesive tape of example 7.
Modified acrylic pressure sensitive adhesive formulations of examples 8-12 reference examples 2-6, and preparation of modified acrylate pressure sensitive adhesive, i.e., modified acrylate pressure sensitive adhesive tape, reference example 7.
The modified acrylate pressure-sensitive adhesives of 6 embodiments of 7-12 are tested for shear strength and high-temperature aging performance after bonding of different materials, and the average value is obtained after three tests, and the test results are as follows:
the aluminum alloy adhesive article bonded using the pressure sensitive adhesive tape of example 1 was placed at a relative humidity > 90% and aged at a temperature of 60 ℃ and tested for resistance to wet heat aging as follows:
the aluminum alloy adhesive article bonded using the pressure-sensitive adhesive tape of example 1 was placed in water for immersion and tested for water resistance as follows:
the aluminum alloy adhesive pieces bonded using the pressure sensitive tape of example 1 were placed in different media and soaked for 7d and tested for media resistance as follows:
from the above test data of examples 7-12, it can be seen that the pressure-sensitive adhesives of examples 7-12 are outstanding in high temperature resistance and thermal aging resistance, but are inferior in water resistance and solvent resistance, and the research and development personnel of my department tested the low temperature resistance of the pressure-sensitive adhesives prepared in examples 7-12, and the test results are as follows:
the low temperature resistance of the pressure sensitive adhesives of examples 7-12 is slightly lower than that of examples 1-6, but the pressure sensitive adhesives also belong to low temperature resistant adhesives with excellent performance.
And a third part:
example 13
A modified acrylate pressure-sensitive adhesive is prepared by weighing the following raw materials:
butyl acrylate;
10 parts by weight of acrylic acid;
5 parts by weight of N-vinyl pyrrolidone;
6 parts by weight of a rubber elastomer;
18 parts by weight of trimethylolpropane trimethacrylate;
10 parts of tackifying resin;
6 parts of acrylonitrile.
Preparing the pressure-sensitive adhesive from the following raw materials: 1) mixing butyl acrylate and acrylonitrile, heating to 68-80 deg.C, and maintaining the temperature for 26 min; 2) preparing an acrylic acid complex, namely mixing acrylic acid and N-vinyl pyrrolidone according to a proportion, then adding a rubber elastomer and trimethylolpropane trimethacrylate, and uniformly mixing to obtain the acrylic acid complex; 3) mixing the butyl acrylate acrylonitrile mixture prepared in the step 1) with tackifying resin, then adding the acrylic acid complex prepared in the step 2), uniformly mixing, and irradiating for 12min under ultraviolet light with the intensity of 3000LEX to prepare the pressure-sensitive adhesive of the embodiment 13.
The 4 pressure-sensitive adhesive of example 13 was placed in a coater, the 4 pressure-sensitive adhesive was coated on a release substrate by the coater, and release paper was attached to the other side of the release substrate to prepare the pressure-sensitive adhesive tape of example 13.
Pressure-sensitive adhesive formulations of examples 14-18 reference examples 2-6, and methods for making pressure-sensitive adhesive tapes reference example 1.
The pressure-sensitive adhesive tapes prepared in examples 14 to 18 were subjected to performance tests, and as a result, they were found to be significantly inferior to examples 1 to 6 in low-temperature resistance and aging resistance, and to be slightly different from examples 1 to 6 in other properties.
The fourth part:
example 19:
a modified acrylate pressure-sensitive adhesive is prepared by weighing the following raw materials:
70 parts of acrylic ester A; the acrylate A is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in a ratio of 9:5: 2; namely 40 parts by weight of butyl acrylate; 21.5 parts by weight of nonyl acrylate, and 8.5 parts by weight of decyl acrylate;
10 parts by weight of acrylic acid;
5 parts by weight of N-vinyl pyrrolidone;
6 parts by weight of a rubber elastomer;
18 parts by weight of trimethylolpropane trimethacrylate;
10 parts of tackifying resin;
6 parts of acrylonitrile.
Preparing the pressure-sensitive adhesive from the following raw materials: the pressure sensitive adhesive of example 19 was prepared by mixing butyl acrylate, nonyl acrylate and decyl acrylate, acrylonitrile, acrylic acid, N-vinyl pyrrolidone, rubber elastomer, trimethylolpropane trimethacrylate and tackifying resin.
The pressure-sensitive adhesive of example 19 was placed in a coater, which coated the pressure-sensitive adhesive on a release substrate, and release paper was attached to the other side of the release substrate to produce the pressure-sensitive adhesive tape of example 19.
The pressure-sensitive adhesive tape of example 19 was tested and found to be extremely poor in low-temperature resistance, solvent resistance and extremely low in shear strength.
The above embodiments find that the key of the invention is not only the formula of the modified acrylate pressure-sensitive adhesive, but also the preparation method of the modified acrylate pressure-sensitive adhesive plays a key role.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A modified acrylate pressure-sensitive adhesive comprises the following raw materials: 70-90 parts of acrylate, 10-20 parts of acrylic acid, 5-12 parts of N-vinyl pyrrolidone and 6-10 parts of rubber elastomer; 18-26 parts of trimethylolpropane trimethacrylate; 10-18 parts of tackifying resin and 5-8 parts of acrylonitrile.
2. The modified acrylate pressure-sensitive adhesive of claim 1, wherein: the acrylate is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate.
3. The modified acrylate pressure-sensitive adhesive of claim 2, wherein: the acrylate is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in a weight ratio of 3-5:2-3: 1.
4. The modified acrylate pressure-sensitive adhesive of claim 3, wherein: the acrylate is a mixture of butyl acrylate, nonyl acrylate and decyl acrylate in a weight ratio of 9:5: 2.
5. The modified acrylate pressure-sensitive adhesive of claim 1, wherein: the weight part ratio of the acrylic ester to the acrylonitrile is 12-13: 1.
6. The modified acrylate pressure-sensitive adhesive of claim 1, wherein: the weight part ratio of the acrylic acid to the N-vinyl pyrrolidone is 1: 5-12.
7. The modified acrylate pressure-sensitive adhesive of claim 1, wherein: the rubber elastomer and the trimethylolpropane trimethacrylate have the weight part ratio of 1: 2-3.
8. The modified acrylate pressure-sensitive adhesive according to any one of claims 1 to 7, which is prepared by the following method: 1) preparing acrylic ester, uniformly mixing butyl acrylate, nonyl acrylate and decyl acrylate according to a proportion, then adding acrylonitrile into the mixture for mixing, heating to 68-80 ℃, and keeping the temperature for 10-30 min; 2) preparing an acrylic acid complex, namely mixing acrylic acid and N-vinyl pyrrolidone according to a proportion, then adding a rubber elastomer and trimethylolpropane trimethacrylate, and uniformly mixing to obtain the acrylic acid complex; 3) mixing the acrylate prepared in the step 1) with tackifying resin, then adding the acrylic acid complex prepared in the step 2), uniformly mixing, and irradiating for 5-15min under the ultraviolet light with the intensity of 3000LEX to prepare the modified acrylate pressure-sensitive adhesive.
9. A modified acrylate pressure sensitive adhesive tape is prepared by the following steps: placing the modified acrylate pressure-sensitive adhesive prepared in the claim 8 into a coater, coating the modified acrylate pressure-sensitive adhesive on a release substrate by the coater, and attaching release paper on the other side of the release substrate to prepare the modified acrylate pressure-sensitive adhesive tape.
10. The modified acrylate pressure sensitive tape of claim 9 for use in automotive permanent fixture assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455834.8A CN114163933A (en) | 2021-12-01 | 2021-12-01 | Modified acrylate pressure-sensitive adhesive and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111455834.8A CN114163933A (en) | 2021-12-01 | 2021-12-01 | Modified acrylate pressure-sensitive adhesive and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790228A (en) * | 1993-04-28 | 1995-04-04 | Nippon Zeon Co Ltd | Ultraviolet-curable composition, bonding method using the composition and bonded product |
| CN101522845A (en) * | 2006-10-12 | 2009-09-02 | 日东电工株式会社 | Acrylic adhesive tape or sheet, and method for producing the same |
| CN104797671A (en) * | 2012-11-19 | 2015-07-22 | 3M创新有限公司 | Highly tackified acrylate pressure sensitive adhesives |
-
2021
- 2021-12-01 CN CN202111455834.8A patent/CN114163933A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0790228A (en) * | 1993-04-28 | 1995-04-04 | Nippon Zeon Co Ltd | Ultraviolet-curable composition, bonding method using the composition and bonded product |
| CN101522845A (en) * | 2006-10-12 | 2009-09-02 | 日东电工株式会社 | Acrylic adhesive tape or sheet, and method for producing the same |
| CN104797671A (en) * | 2012-11-19 | 2015-07-22 | 3M创新有限公司 | Highly tackified acrylate pressure sensitive adhesives |
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