CN114806488A - Adhesive capable of being photoinduced to lose adhesion and preparation method thereof - Google Patents

Adhesive capable of being photoinduced to lose adhesion and preparation method thereof Download PDF

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Publication number
CN114806488A
CN114806488A CN202210390861.XA CN202210390861A CN114806488A CN 114806488 A CN114806488 A CN 114806488A CN 202210390861 A CN202210390861 A CN 202210390861A CN 114806488 A CN114806488 A CN 114806488A
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China
Prior art keywords
adhesive
acrylic resin
modified
photoinduced
resin
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CN202210390861.XA
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Chinese (zh)
Inventor
俞健钧
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Jiangsu Guojiao New Materials Co ltd
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Jiangsu Guojiao New Materials Co ltd
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Priority to CN202210390861.XA priority Critical patent/CN114806488A/en
Publication of CN114806488A publication Critical patent/CN114806488A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • C09J175/14Polyurethanes having carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to the technical field of adhesives, and particularly discloses a photoinduced adhesive capable of being debonded and a preparation method thereof, wherein the adhesive is composed of modified rosin resin, modified acrylic resin, a reactive diluent, a solvent and an auxiliary agent, and the adhesive comprises the following components in parts by weight: 10-30% of modified rosin resin, 30-70% of modified acrylic resin, 15-40% of reactive diluent, 0-30% of solvent and 0.1-5% of auxiliary agent. The adhesive capable of photoinduced debonding is added into the photoinduced debonding adhesive by introducing the double bonds capable of being initiated by light into the rosin resin by adopting a chemical modification method, and after ultraviolet illumination, the adhesive tape loses the viscosity and is easy to remove, so that the adhesive force of the adhesive can be increased, and the photoinduced debonding performance is not influenced.

Description

Adhesive capable of being photoinduced to lose adhesion and preparation method thereof
Technical Field
The invention relates to the technical field of adhesives, in particular to an adhesive capable of being photoinduced for losing adhesion and a preparation method thereof.
Background
The photoinduced adhesive tape is a special adhesive product for the photoinduced adhesive tape, is mainly used for temporary bonding and protection, prevents workpieces from being scratched, abraded, polluted, corroded and the like, can be removed from the workpieces after use, has no residue on the bonding surface, and does not influence the material performance of the workpieces. After years of development and application exploration, the material is widely applied to various fields, and especially plays an important role in semiconductor wafer cutting, precision electronic device manufacturing and optical device manufacturing.
The main function of the photoinduced adhesive tape is realized by an adhesive layer coated on a base film, Chinese patent CN201710574410 discloses a UV single-sided adhesive tape which is subjected to ultraviolet irradiation and then is subjected to adhesive losing and a preparation method thereof, the adhesive tape structurally comprises a transparent base film, a UV adhesive layer and a single-sided release film, and the UV adhesive layer mainly comprises a UV adhesive, a curing additive and a solvent. The use of UV adhesives in this patent may have problems of insufficient adhesion and poor de-bonding.
Disclosure of Invention
The invention aims to provide a photo-induced adhesive capable of being subjected to adhesive loss and a preparation method thereof.
In order to solve the technical problems, the invention provides a photoinduced adhesive capable of being subjected to adhesive loss, which consists of modified rosin resin, modified acrylic resin, a reactive diluent, a solvent and an auxiliary agent, wherein the parts of the components are as follows: 10-30% of modified rosin resin, 30-70% of modified acrylic resin, 15-40% of reactive diluent, 0-30% of solvent and 0.1-5% of auxiliary agent.
Further, the modified rosin resin is prepared by introducing a double bond which can be initiated by light into rosin or hydrogenated rosin by a chemical method, and is mainly characterized by having the following chemical structure:
Figure BDA0003595457150000021
wherein n is 2 to 50,
Figure BDA0003595457150000022
further, the modified acrylic resin is one of acrylic resin, polyurethane acrylic resin and epoxy acrylic resin.
Further, the polyurethane acrylic resin is polyurethane acrylic resin with a glass transition temperature Tg lower than-20 degrees.
Further, the reactive diluent is one or a mixture of more of 2-20 functionality polyurethane acrylate prepolymer and acrylate monomers.
Furthermore, the functionality of the polyurethane acrylate prepolymer is 2-6, and the functionality of the acrylate monomer is 2-4.
Further, the solvent is one or a mixture of more of acetone, ethyl acetate, toluene, propylene glycol monoether acetate, methyl ethyl ketone, tetrahydrofuran and dichloromethane.
Further, the auxiliary agent is a mixture of a defoaming agent, a polymerization inhibitor and a photoinitiator.
Further, 0.1-0.2 part of polymerization inhibitor, 0.5-1 part of defoaming agent and 5-8 parts of photoinitiator.
The invention also provides a preparation method of the adhesive capable of being photoinduced for debonding, which comprises the steps of adding 10-30% of modified rosin resin, 30-70% of modified acrylic resin, 15-40% of active diluent and 0.1-5% of auxiliary agent into a high-speed dispersion machine, uniformly stirring, and filtering to obtain the adhesive.
The invention has the beneficial effects that: the adhesive capable of photoinduced debonding is added into the photoinduced debonding adhesive by introducing the double bonds capable of being initiated by light into the rosin resin by adopting a chemical modification method, and after ultraviolet illumination, the adhesive tape loses the viscosity and is easy to remove, so that the adhesive force of the adhesive can be increased, and the photoinduced debonding performance is not influenced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
a light-induced debonding adhesive:
adding 20% of modified rosin resin, 45% of polyurethane acrylic resin with Tg lower than-20 ℃, 20% of reactive diluent (a mixture of ditrimethylolpropane tetraacrylate and 1, 6-hexanediol diacrylate 1: 1), 13% of acetone and 2% of auxiliary agent into a high-speed dispersion machine, uniformly stirring, and filtering to obtain the modified rosin acrylic resin.
EXAMPLE 2
A light-induced debonding adhesive:
adding 15% of modified rosin resin, 35% of modified acrylic resin, 20% of reactive diluent (RJ429, good Germany chemical (China) Co., Ltd.), 27% of toluene and 3% of auxiliary agent into a high-speed dispersion machine, stirring uniformly, and filtering to obtain the modified rosin acrylic resin.
Example 3
A light-induced debonding adhesive:
adding 25% of modified rosin resin, 40% of modified acrylic resin, 32% of reactive diluent (RJ4219, a mixture of isobornyl acrylate and hydroxyethyl methacrylate at a ratio of 1:2:1, good Germany chemical Co., Ltd., Germany) and 3% of auxiliary agent into a high-speed dispersion machine, stirring uniformly, and filtering to obtain the modified rosin acrylic resin.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (10)

1. The adhesive capable of being subjected to photoinduced debonding is characterized by comprising modified rosin resin, modified acrylic resin, a reactive diluent, a solvent and an auxiliary agent in parts by weight: 10-30% of modified rosin resin, 30-70% of modified acrylic resin, 15-40% of reactive diluent, 0-30% of solvent and 0.1-5% of auxiliary agent.
2. The adhesive of claim 1, wherein the modified rosin resin is prepared by introducing photoinitiated double bonds into rosin or hydrogenated rosin by a chemical method, and is mainly characterized by having the following chemical structure:
Figure FDA0003595457140000011
wherein n is 2 to 50,
Figure FDA0003595457140000012
3. the adhesive of claim 1, wherein the modified acrylic resin is one of acrylic resin, urethane acrylic resin, and epoxy acrylic resin.
4. The photo-detackable adhesive according to claim 3, wherein the urethane acrylic resin is a urethane acrylic resin having a glass transition temperature Tg of less than-20 °.
5. The adhesive of claim 1, wherein the reactive diluent is one or more of 2-20 functionality urethane acrylate prepolymer and acrylate monomer.
6. The adhesive of claim 5, wherein the functionality of the urethane acrylate prepolymer is 2-6, and the functionality of the acrylate monomer is 2-4.
7. The adhesive of claim 1, wherein the solvent is one or more selected from acetone, ethyl acetate, toluene, propylene glycol monoether acetate, methyl ethyl ketone, tetrahydrofuran, and dichloromethane.
8. The photo-induced debonding adhesive according to claim 1, wherein the auxiliary agent is a mixture of an antifoaming agent, a polymerization inhibitor and a photoinitiator.
9. The adhesive of claim 8, wherein the polymerization inhibitor is 0.1-0.2 part, the defoamer is 0.5-1 part, and the photoinitiator is 5-8 parts.
10. A preparation method of a photo-induced adhesive capable of being unstuck is used for preparing the adhesive of any one of claims 1 to 9, and is characterized in that 10-30% of modified rosin resin, 30-70% of modified acrylic resin, 15-40% of reactive diluent and 0.1-5% of auxiliary agent are added into a high-speed dispersion machine to be uniformly stirred and filtered, and then the photo-induced adhesive is obtained.
CN202210390861.XA 2022-04-14 2022-04-14 Adhesive capable of being photoinduced to lose adhesion and preparation method thereof Pending CN114806488A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117720861A (en) * 2023-12-21 2024-03-19 东莞帝亿特电子胶带有限公司 Electronic adhesive tape and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090050794A (en) * 2007-11-16 2009-05-20 재단법인서울대학교산학협력재단 Method for producing uv-polymerizable acrylic pressure-sensitive adhesives using rosin methacrylate
CN111057474A (en) * 2019-12-24 2020-04-24 合肥乐凯科技产业有限公司 Adhesive for UV (ultraviolet) anti-adhesive film and UV anti-adhesive film thereof
CN212174860U (en) * 2019-11-14 2020-12-18 北京清鸿光科科技有限公司 Photoinduced adhesive tape
CN113372824A (en) * 2021-06-24 2021-09-10 苏州赛伍应用技术股份有限公司 Water-impact-resistant high-viscosity UV (ultraviolet) viscosity-reducing adhesive and preparation method and application thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090050794A (en) * 2007-11-16 2009-05-20 재단법인서울대학교산학협력재단 Method for producing uv-polymerizable acrylic pressure-sensitive adhesives using rosin methacrylate
CN212174860U (en) * 2019-11-14 2020-12-18 北京清鸿光科科技有限公司 Photoinduced adhesive tape
CN111057474A (en) * 2019-12-24 2020-04-24 合肥乐凯科技产业有限公司 Adhesive for UV (ultraviolet) anti-adhesive film and UV anti-adhesive film thereof
CN113372824A (en) * 2021-06-24 2021-09-10 苏州赛伍应用技术股份有限公司 Water-impact-resistant high-viscosity UV (ultraviolet) viscosity-reducing adhesive and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117720861A (en) * 2023-12-21 2024-03-19 东莞帝亿特电子胶带有限公司 Electronic adhesive tape and preparation method thereof

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