CN112961613A - Adhesive applied to AF display screen protective film, preparation method of adhesive and protective film - Google Patents

Adhesive applied to AF display screen protective film, preparation method of adhesive and protective film Download PDF

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CN112961613A
CN112961613A CN202110282756.XA CN202110282756A CN112961613A CN 112961613 A CN112961613 A CN 112961613A CN 202110282756 A CN202110282756 A CN 202110282756A CN 112961613 A CN112961613 A CN 112961613A
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acrylate
parts
adhesive
monomer
acrylic resin
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CN112961613B (en
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刘伟
李彪
黄龙勇
蒙诚乐
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Guangdong Doneson New Materials Co ltd
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Guangdong Doneson New Materials Co ltd
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    • 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
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • 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
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • 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
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate

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

Abstract

The invention relates to the field of adhesives, and particularly discloses an adhesive applied to an AF display screen protective film, a preparation method thereof and the protective film, wherein the adhesive comprises the following components in parts by weight: 80-120 parts of acrylic resin; 2-10 parts of isobornyl methacrylate; 0.5-5 parts of lauryl acrylate; 0.1-1 part of 1, 6-hexanediol diacrylate; 5-15 parts of hydroxyethyl acrylate; 1.5-2.0 parts of a first photoinitiator; 0.30-0.50 part of second photoinitiator. Compared with the prior art, the method adopts the photoinitiation method to prepare the acrylic resin, has high reaction rate and high production efficiency, is suitable for industrial production, and has 100 percent of solid content of the prepared acrylic resin and no pollution to the environment; the AF display screen protective film prepared by the adhesive provided by the invention has the advantages of high and stable stripping force, no adhesive residue at high temperature and high humidity, excellent comprehensive performance, repeated re-adhesion, firm adhesion of AF curved screen, no edge warping and good protection effect.

Description

Adhesive applied to AF display screen protective film, preparation method of adhesive and protective film
Technical Field
The invention relates to the field of adhesives, in particular to an adhesive applied to an AF display screen protective film, a preparation method thereof and the protective film.
Background
The AF display screen refers to a fingerprint-proof screen, the screen has ultralow surface energy and hydrophobic and oleophobic properties, common materials cannot be effectively soaked/adhered on the surface of the screen, the screen is not easy to pollute, even if the screen is repeatedly used, trace oil stains remained on the surface can be easily wiped off without leaving marks, and the screen is widely applied to various display devices, especially electronic products with touch operation requirements due to the excellent isolation effect of the screen.
In order to avoid defects of the AF display screen in the processes of manufacturing, processing, assembling, inspecting, transporting and the like and scratch and chip of the mobile phone screen in the using process, a protective film is adhered to the surface of the AF display screen. However, because the surface of the AF screen has ultra-low surface energy and hydrophobic and oleophobic properties, a general adhesive is difficult to be firmly attached to the surface. The practical peeling force of the glue for pasting the protective film of the AF display screen on the market is only 5-20 gf, and foreign products can only reach 10-30 gf at most and still cannot meet the use requirement. In particular, for AF display screens having a curved surface, not only a high peeling force but also good initial adhesion is required.
Xihailong in Chinese patent CN 109880584A discloses an organic silicon pressure-sensitive adhesive for AF fingerprint-resistant screen. The patent describes a preparation method of an organosilicon pressure-sensitive adhesive for AF anti-fingerprint screens, the organosilicon pressure-sensitive adhesive prepared by the patent technology can be coated on base materials such as PET, PI, PC and the like, has higher stripping force to AF anti-fingerprint screens, can reach 60g/25mm, and has good stability, no attenuation and good adhesive force to AF screen stripping force. However, when such a silicone pressure-sensitive adhesive is used for a protective layer of an AF screen, the adhesive component thereof easily contaminates an adherend, and there is a great problem in protecting an AF display screen protective film which requires low contamination such as an optical component and an electronic component.
The xu-chui et al, chinese patent CN 103571360B, discloses a surface protective film, an optical member, and an electronic member. The patent describes that the surface protective film is capable of achieving both low staining and adhesive residue reduction, and also has excellent reworkability, wettability and transparency. However, the patent does not mention the application of the surface protection film to the AF screen, and the peel force of the surface protection film to the AF display screen is proved to be small through my experiments, and the surface protection film cannot achieve the protection effect in the processes of manufacturing, processing, assembling, checking, transporting, daily use and the like.
Wool wood Wu et al discloses a surface protective film in Chinese patent CN 105670526A. Patent describes that a surface protective film is excellent in wettability and also excellent in step following property even when the surface protective film is bonded to an adherend having a large step on the surface, and therefore can sufficiently achieve a high adhesion ratio. Also, the patent does not mention the application of the surface protective film to the AF screen, and it is confirmed by experiments that the peeling force of the protective film to the AF screen does not meet the requirements.
The preparation and application of the adhesive for the AF screen protection film at home and abroad are rarely reported, because the AF screen protection film with the adhesive layer in the prior art has a plurality of problems, mainly comprising the following components: firstly, the peeling force of the protective film attached to the AF screen is insufficient, and the phenomenon of infirm adhesion can occur; secondly, the peeling force of the protective film is unstable, and the attenuation is easy to occur; thirdly, the AF screen stuck with the protective film is easy to have adhesive residue when being placed in a high-temperature and high-humidity environment, so that the AF screen is easy to be polluted when being placed in the high-temperature and high-humidity environment; and fourthly, the phenomenon of infirm adhesion when the protective film is used for adhering the AF curved surface screen is mainly caused by low stripping force and low initial adhesion.
At present, the development of an adhesive for the protective film of the AF display screen is urgently needed, and the protective film prepared by the adhesive is required to be high and stable in peeling force of the AF display screen, and be free from residue at constant temperature and humidity and capable of firmly adhering the AF curved screen.
Disclosure of Invention
The present invention is intended to overcome at least one of the drawbacks (disadvantages) of the prior art described above, and to provide an adhesive for AF screen protective films, which has the characteristics of high and stable peeling force after curing, no residue at high temperature and high humidity, and being capable of adhering to AF display screens, a method for producing the same, and use thereof.
The invention adopts the technical scheme that the adhesive applied to the AF display screen protective film comprises the following components in parts by weight:
80-120 parts of acrylic resin;
2-10 parts of isobornyl methacrylate;
0.5-5 parts of lauryl acrylate;
0.1-1 part of 1, 6-hexanediol diacrylate;
5-15 parts of hydroxyethyl acrylate;
1.5-2.0 parts of a first photoinitiator;
0.30-0.50 parts of a second photoinitiator;
the molecular weight of the polyacrylic resin is 25-40 ten thousand, and the acrylic resin is formed by polymerizing a hard monomer, a soft monomer and a functional monomer; the weight part of the hard monomer is 5-25 parts, the weight part of the soft monomer is 60-80 parts, and the weight part of the functional monomer is 10-40 parts; the glass transition temperature of the soft monomer is less than 0 ℃; the glass transition temperature of the hard monomer is greater than 0 ℃; the functional monomer comprises a monomer containing hydroxyl, a monomer containing carboxyl, a monomer containing epoxy, a monomer containing nitrogen, a monomer containing cycloparaffin and a monomer containing heterocycle.
According to the invention, multiple diluting monomers, functional acrylic monomers and photoinitiators are added into acrylic resin and uniformly stirred to obtain the adhesive for the AF screen protection film, the obtained adhesive has high and stable stripping force after curing, does not have adhesive residue at constant temperature and humidity, has excellent comprehensive performance and can be repeatedly attached again.
As a preferred technical solution, the functional monomers include N, N-dimethylacrylamide and dicyclopentadiene diacrylate; the N, N-dimethylacrylamide accounts for 6-40% of the functional monomer; the dicyclopentadiene diacrylate accounts for 10-42% of the functional monomer.
According to the scheme, dicyclopentadiene diacrylate, N-dimethylacrylamide and other raw materials are copolymerized to prepare the acrylic resin, and the adhesive prepared from the acrylic resin has more excellent adhesion to the AF screen, high stripping force and stability.
As a preferred technical solution, the hard monomer comprises one or more of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, isobutyl methacrylate, methyl acrylate, vinyl acetate, acrylonitrile, and styrene; the soft monomer is one or more of butyl acrylate, isooctyl acrylate and isodecyl acrylate; the hydroxyl-containing monomer comprises one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate and hydroxybutyl acrylate; the carboxyl group-containing monomer includes one or more of methacrylic acid and acrylic acid; the epoxy-containing monomer comprises one or more of glycidyl acrylate and glycidyl methacrylate; the nitrogen-containing monomer comprises one or more of N, N-dimethylacrylamide, N-diethylacrylamide and acrylamide; the cycloparaffin-containing monomer is isobornyl methacrylate; the monomer containing the heterocycle comprises one or more of tetrahydrofuran acrylate, tetrahydrofuran methacrylate and ethoxylated dicyclopentadiene acrylate.
As a preferable technical scheme, the acrylic resin is prepared by the reaction of the following components in parts by weight:
5-15 parts of methyl methacrylate;
65-75 parts of isooctyl acrylate;
1-8 parts of acrylic acid;
1-8 parts of tetrahydrofuran acrylate;
1-8 parts of isobornyl methacrylate;
1-5 parts of glycidyl methacrylate;
3-8 parts of dicyclopentadiene diacrylate;
2-8 parts of N, N-dimethylacrylamide;
1-8 parts of hydroxypropyl acrylate;
0.5-4.0 parts of a third photoinitiator.
As a preferred technical solution, the preparation method of the acrylic resin comprises the following steps:
adding methyl methacrylate, isooctyl acrylate, acrylic acid, tetrahydrofuran acrylate, isobornyl methacrylate, glycidyl methacrylate, dicyclopentadiene diacrylate, N-dimethylacrylamide, hydroxypropyl acrylate and a third photoinitiator into a reaction kettle, irradiating the mixed solution with ultraviolet light after oxygen is removed, turning off the ultraviolet light when the resin reaches the required molecular weight after reacting to a certain degree, and stopping the reaction to obtain the required acrylic resin.
As a preferred technical scheme, the preparation method of the acrylic resin specifically comprises the following steps:
s1: adding methyl methacrylate, isooctyl acrylate, acrylic acid, tetrahydrofuran acrylate, isobornyl methacrylate, glycidyl methacrylate, dicyclopentadiene diacrylate, N-dimethylacrylamide, hydroxypropyl acrylate and a third photoinitiator into a reaction kettle;
s2: stirring uniformly, and introducing nitrogen to remove oxygen;
s3: and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting the polymerization reaction, and when the resin reaches the required molecular weight after the reaction reaches a certain degree, turning off the ultraviolet lamp, and stopping the reaction to obtain the required acrylic resin.
As a preferred technical scheme, the third photoinitiator comprises one or two of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 1-hydroxycyclohexyl phenyl ketone and benzophenone.
As a preferred technical scheme, the adhesive also comprises 0.1-0.5 part by weight of ultraviolet absorber; and/or, further comprises 0.1-0.5 weight part of antioxidant; and/or the first photoinitiator comprises one or two of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 1-hydroxycyclohexyl phenyl ketone; and/or the second photoinitiator comprises one or two of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide and ethyl 2,4, 6-trimethylbenzoyl phenylphosphonate.
As a preferred technical scheme, the ultraviolet light absorber is one, two or a mixture of three or more of UV-9, UV-284 and UV-328; and/or the antioxidant is one, two or a mixture of more than three of antioxidant 168, antioxidant 1010 and antioxidant 1076.
The preparation method of the adhesive comprises the following specific steps: weighing acrylic resin, isobornyl methacrylate, lauryl acrylate, 1, 6-hexanediol diacrylate, hydroxyethyl acrylate, an ultraviolet absorbent, an antioxidant, a first photoinitiator and a second photoinitiator according to the proportion, and stirring and mixing uniformly. The adhesive provided by the invention has the advantages of simple preparation process and high production efficiency, and is suitable for large-scale industrial production.
The invention also provides an application of the adhesive, which specifically comprises the following steps: and coating the adhesive on a base material, irradiating the base material by using ultraviolet light, and curing the base material completely, and then attaching a release film.
The invention also provides an optical film which comprises the adhesive. Preferably, the optical film may be applied to an AF display screen protective film. The AF display screen protective film prepared by the adhesive provided by the invention has the advantages of high and stable stripping force, no adhesive residue at high temperature and high humidity, excellent comprehensive performance, repeated re-adhesion, firm adhesion of AF curved screen, no edge warping and good protection effect.
Compared with the prior art, the invention has the beneficial effects that:
(1) the photo-initiation method is adopted to prepare the acrylic resin, the reaction rate is high, the production efficiency is high, the method is suitable for industrial production, the solid content of the prepared acrylic resin is 100%, and the method has no pollution to the environment.
(2) The AF display screen protective film made of the adhesive of the present invention has high and stable peeling force.
(3) The AF display screen protective film prepared by the adhesive has the advantages of no adhesive residue under high temperature and high humidity, excellent comprehensive performance and repeated re-adhesion.
(4) The AF display screen protective film made of the adhesive can be firmly attached to a curved screen of AF, does not warp edges and can play a very good role in protection.
Drawings
Fig. 1 is a schematic structural diagram of the protective film.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below.
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Preferably, the synthetic acrylic resin has a purity of methyl methacrylate of 99%.
Preferably, the synthetic acrylic resin has isooctyl acrylate purity of 99%.
Preferably, the purity of acrylic acid of the synthetic acrylic resin is 99.2%.
Preferably, the purity of the tetrahydrofuran acrylate of the synthetic acrylic resin is 97%.
Preferably, the synthetic acrylic resin has an isobornyl methacrylate purity of 99%.
Preferably, the purity of glycidyl methacrylate of the synthetic acrylic resin is 99%.
Preferably, the purity of dicyclopentadiene diacrylate of the synthetic acrylic resin is 97%.
Preferably, the synthetic acrylic resin has a purity of N, N-dimethylacrylamide of 97%.
Preferably, the purity of hydroxypropyl acrylate of the synthetic acrylic resin is 98%.
Example 1
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 28-29 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 2
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 8g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 8g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 29-30 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 3
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 28-29 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 4
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.5g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.5g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 5g of methyl methacrylate, 75g of isooctyl acrylate, 6g of acrylic acid, 5g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 5g of methyl methacrylate, 75g of isooctyl acrylate, 6g of acrylic acid, 5g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 25-26 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.5g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.5g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 5
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.5g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.3g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 5g of methyl methacrylate, 75g of isooctyl acrylate, 6g of acrylic acid, 5g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 5g of methyl methacrylate, 75g of isooctyl acrylate, 6g of acrylic acid, 5g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 25-26 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.5g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.3g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 6
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 7 g; lauryl acrylate is 3 g; 0.2g of 1, 6-hexanediol diacrylate; 8g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.32g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuryl acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate, 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuran acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate and 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 32-33 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 7g of isobornyl methacrylate, 3g of lauryl acrylate, 0.2g of 1, 6-hexanediol diacrylate, 8g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.32g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 7
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 8 g; lauryl acrylate is 3 g; 0.7g of 1, 6-hexanediol diacrylate; 6g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.7g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.42g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 15g of methyl methacrylate, 68g of isooctyl acrylate, 4g of acrylic acid, 5g of tetrahydrofuryl acrylate, 2g of isobornyl methacrylate, 3g of glycidyl methacrylate, 6g of dicyclopentadiene diacrylate, 4g of N, N-dimethylacrylamide, 6g of hydroxypropyl acrylate, 1.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 15g of methyl methacrylate, 68g of isooctyl acrylate, 4g of acrylic acid, 5g of tetrahydrofuran acrylate, 2g of isobornyl methacrylate, 3g of glycidyl methacrylate, 6g of dicyclopentadiene diacrylate, 4g of N, N-dimethylacrylamide, 6g of hydroxypropyl acrylate and 1.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 38-39 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 8g of isobornyl methacrylate, 3g of lauryl acrylate, 0.7g of 1, 6-hexanediol diacrylate, 6g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.7g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.42g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 8
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 2 g; lauryl acrylate is 0.8 g; 0.3g of 1, 6-hexanediol diacrylate; 7g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.42g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 7g of methyl methacrylate, 66g of isooctyl acrylate, 1g of acrylic acid, 4g of tetrahydrofuryl acrylate, 2g of isobornyl methacrylate, 4g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 3g of hydroxypropyl acrylate and 0.7g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 7g of methyl methacrylate, 66g of isooctyl acrylate, 1g of acrylic acid, 4g of tetrahydrofuran acrylate, 2g of isobornyl methacrylate, 4g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 3g of hydroxypropyl acrylate and 0.7g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 26-27 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 2g of isobornyl methacrylate, 0.8g of lauryl acrylate, 0.3g of 1, 6-hexanediol diacrylate, 7g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.42g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 9
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 110g of acrylic resin; isobornyl methacrylate 3 g; lauryl acrylate is 2.2 g; 0.4g of 1, 6-hexanediol diacrylate; 8g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.44g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 6g of methyl methacrylate, 67g of isooctyl acrylate, 5g of acrylic acid, 8g of tetrahydrofuryl acrylate, 1g of isobornyl methacrylate, 2g of glycidyl methacrylate, 3g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 2g of hydroxypropyl acrylate and 2.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 6g of methyl methacrylate, 67g of isooctyl acrylate, 5g of acrylic acid, 8g of tetrahydrofuran acrylate, 1g of isobornyl methacrylate, 2g of glycidyl methacrylate, 3g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 2g of hydroxypropyl acrylate and 2.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 26-27 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 2g of isobornyl methacrylate, 0.8g of lauryl acrylate, 0.3g of 1, 6-hexanediol diacrylate, 7g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.42g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 10
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 4 g; lauryl acrylate is 1.8 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.7g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.46g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 11g of methyl methacrylate, 71g of isooctyl acrylate, 3g of acrylic acid, 1g of tetrahydrofuryl acrylate, 4g of isobornyl methacrylate, 3g of glycidyl methacrylate, 4g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 1g of hydroxypropyl acrylate, 1.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 11g of methyl methacrylate, 71g of isooctyl acrylate, 3g of acrylic acid, 1g of tetrahydrofuran acrylate, 4g of isobornyl methacrylate, 3g of glycidyl methacrylate, 4g of dicyclopentadiene diacrylate, 3g of N, N-dimethylacrylamide, 1g of hydroxypropyl acrylate and 1.2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were charged into the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 31-32 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 4g of isobornyl methacrylate, 1.8g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorber UV-9, 0.2g of antioxidant 1010, 1.7g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.46g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by using a four-side coater of 50um, attached with a release film, and irradiated and cured by using an ultraviolet light source to obtain the photocuring film.
Example 11
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 90g of acrylic resin; isobornyl methacrylate 5 g; lauryl acrylate is 3 g; 0.8g of 1, 6-hexanediol diacrylate; 10g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.5g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 13g of methyl methacrylate, 69g of isooctyl acrylate, 2g of acrylic acid, 6g of tetrahydrofuryl acrylate, 5g of isobornyl methacrylate, 4g of glycidyl methacrylate, 8g of dicyclopentadiene diacrylate, 5g of N, N-dimethylacrylamide, 2g of hydroxypropyl acrylate, 1.1g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 13g of methyl methacrylate, 69g of isooctyl acrylate, 2g of acrylic acid, 6g of tetrahydrofuran acrylate, 5g of isobornyl methacrylate, 4g of glycidyl methacrylate, 8g of dicyclopentadiene diacrylate, 5g of N, N-dimethylacrylamide, 2g of hydroxypropyl acrylate and 1.1g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 31-32 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 90g of acrylic resin, 5g of isobornyl methacrylate, 3g of lauryl acrylate, 0.8g of 1, 6-hexanediol diacrylate, 10g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.5g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Example 12
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 120g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2.1 g; 0.9g of 1, 6-hexanediol diacrylate; hydroxyethyl acrylate was 11 g; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.32g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 12g of methyl methacrylate, 73g of isooctyl acrylate, 4g of acrylic acid, 7g of tetrahydrofuryl acrylate, 6g of isobornyl methacrylate, 1g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 7g of N, N-dimethylacrylamide, 5g of hydroxypropyl acrylate, 1.3g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 12g of methyl methacrylate, 73g of isooctyl acrylate, 4g of acrylic acid, 7g of tetrahydrofuran acrylate, 6g of isobornyl methacrylate, 1g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 7g of N, N-dimethylacrylamide, 5g of hydroxypropyl acrylate and 1.3g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 34-35 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 120g of acrylic resin, 6g of isobornyl methacrylate, 2.1g of lauryl acrylate, 0.9g of 1, 6-hexanediol diacrylate, 11g of hydroxyethyl acrylate, 0.2g of an ultraviolet absorber UV-9, 0.2g of an antioxidant 1010, 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.32g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by using a four-side coater of 50um, attached with a release film, and irradiated and cured by using an ultraviolet light source to obtain the photocuring film.
Example 13
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 110g of acrylic resin; isobornyl methacrylate 8 g; lauryl acrylate is 1.2 g; 1g of 1, 6-hexanediol diacrylate; hydroxyethyl acrylate 12 g; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 2g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.36g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 69g of isooctyl acrylate, 5g of acrylic acid, 3g of tetrahydrofuryl acrylate, 7g of isobornyl methacrylate, 5g of glycidyl methacrylate, 6g of dicyclopentadiene diacrylate, 8g of N, N-dimethylacrylamide, 6g of hydroxypropyl acrylate, 0.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 69g of isooctyl acrylate, 5g of acrylic acid, 3g of tetrahydrofuran acrylate, 7g of isobornyl methacrylate, 5g of glycidyl methacrylate, 6g of dicyclopentadiene diacrylate, 8g of N, N-dimethylacrylamide, 6g of hydroxypropyl acrylate and 0.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 27-28 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 110g of acrylic resin, 8g of isobornyl methacrylate, 1.2g of lauryl acrylate, 1g of 1, 6-hexanediol diacrylate, 12g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 2g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.36g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, a four-side coater of 50um is used for coating the mixture on a TPU substrate after defoaming, a release film is attached, and the mixture is irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 1
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 9g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 9g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 27-28 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 2
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were charged into the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 26-27 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 3
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 27-28 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 4
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 9g N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 9g N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 28-29 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 5
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; lauryl acrylate is 2 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 2g of dicyclopentadiene diacrylate, 9g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 2g of dicyclopentadiene diacrylate, 9g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 28-29 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 2g of lauryl acrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50um, attached with a release film, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 6
The scheme provides a preparation method of an adhesive for an AF display screen protective film, which is prepared from the following raw materials in parts by weight: 100g of acrylic resin; isobornyl methacrylate 6 g; 0.5g of 1, 6-hexanediol diacrylate; 9g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide.
The acrylic resin is prepared by reacting the following components: 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuryl acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 8g of methyl methacrylate, 70g of isooctyl acrylate, 4g of acrylic acid, 3g of tetrahydrofuran acrylate, 3g of isobornyl methacrylate, 2g of glycidyl methacrylate, 5g of dicyclopentadiene diacrylate, 6g of N, N-dimethylacrylamide, 4g of hydroxypropyl acrylate and 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 28-29 ten thousand.
The scheme provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 6g of isobornyl methacrylate, 0.5g of 1, 6-hexanediol diacrylate, 9g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010, 1.8g of 2-hydroxy-2-methyl-1-phenyl-1-propanone and 0.4g of 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide in the formula are mixed and stirred uniformly, after defoaming, a 50-micrometer four-side coater TPU substrate is used for coating the mixture on the TPU substrate, a release film is attached, and the mixture is irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 7
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 7 g; lauryl acrylate is 3 g; 0.2g of 1, 6-hexanediol diacrylate; 8g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-propanone was used.
The acrylic resin is prepared by reacting the following components: 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuryl acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate, 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuran acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate and 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 32-33 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 7g of isobornyl methacrylate, 3g of lauryl acrylate, 0.2g of 1, 6-hexanediol diacrylate, 8g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010 and 1.9g of 2-hydroxy-2-methyl-1-phenyl-1-acetone in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50 mu m, attached with a release film and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Comparative example 8
This example provides a method for preparing an adhesive for an AF display screen protective film, prepared from the following raw materials: 100g of acrylic resin; isobornyl methacrylate 7 g; lauryl acrylate is 3 g; 0.2g of 1, 6-hexanediol diacrylate; 8g of hydroxyethyl acrylate; the ultraviolet absorbent UV-9 is 0.2 g; antioxidant 1010 was 0.2 g; 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in an amount of 0.32 g.
The acrylic resin is prepared by reacting the following components: 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuryl acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate, 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The synthesis process of the acrylic resin comprises the following steps:
(1) 12g of methyl methacrylate, 72g of isooctyl acrylate, 7g of acrylic acid, 2g of tetrahydrofuran acrylate, 6g of isobornyl methacrylate, 5g of glycidyl methacrylate, 7g of dicyclopentadiene diacrylate, 2g of N, N-dimethylacrylamide, 7g of hydroxypropyl acrylate and 0.6g of 2-hydroxy-2-methyl-1-phenyl-1-propanone were added to the reaction vessel.
(2) Stirring uniformly, and introducing nitrogen to remove oxygen;
(3) and (3) irradiating the mixed solution in the reaction kettle by using an ultraviolet light source, starting a polymerization reaction, turning off the ultraviolet lamp when the resin reaches the required molecular weight after the reaction reaches a certain degree, and stopping the reaction to obtain the acrylic resin with the weight-average molecular weight of 32-33 ten thousand.
The embodiment provides an application method of an adhesive for an AF display screen protective film, which comprises the following steps: 100g of acrylic resin, 7g of isobornyl methacrylate, 3g of lauryl acrylate, 0.2g of 1, 6-hexanediol diacrylate, 8g of hydroxyethyl acrylate, 0.2g of ultraviolet absorbent UV-9, 0.2g of antioxidant 1010 and 0.32g of 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide in the formula are mixed and stirred uniformly, defoamed, coated on a TPU substrate by a four-side coater of 50 microns, then a release film is attached, and irradiated and cured by an ultraviolet light source to obtain the photocuring film.
Performance testing
The photo-cured films obtained by curing the adhesives for the protective films of AF display screens provided in examples 1 to 13 and comparative examples 1 to 8 were subjected to a performance test according to the following test standards and methods:
hardness: measuring according to a test method of a Shore durometer;
initial viscosity: test with reference to GB 4852-84;
viscosity retention: reference to the DB4851-98 test;
high temperature and high humidity: test reference GB/T10586-1989, test for 3 days;
peeling force: referring to astm d3330 test method, the steel plate was replaced with an AF screen having a water drop angle of 115 ° to test the peeling force.
The test results are shown in table 1.
Table 1 properties of AF display screen protective films prepared from the binders synthesized in examples 1 to 13 and comparative examples 1 to 8:
Figure BDA0002979238980000221
Figure BDA0002979238980000231
as can be seen from table 1, by comparing the test results of example 1, example 2, comparative example 1 and comparative example 2, it can be seen that the peeling force of the AF screen increases with the increase of dicyclopentadiene diacrylate, but the peeling force decreases beyond the range of the invention, mainly because dicyclopentadiene diacrylate has excellent adherence to the AF screen, and if the addition amount is insufficient or excessive, the peeling force of the AF screen protective film is low and unstable, and the phenomenon of adhesive residue is easily occurred at constant temperature and humidity; by comparing the test results of example 1, example 3, comparative example 3 and comparative example 4, it can be seen that the peeling force of the protective film on the AF screen increases with the increase of the addition amount of N, N-dimethylacrylamide, mainly because N, N-dimethylacrylamide is a functional acrylic monomer and has good adhesion to the AF screen, and if the addition amount is insufficient or excessive, the peeling force of the protective film is also low and unstable; by comparing the test results of example 1 and comparative example 5, it can be seen that if dicyclopentadiene diacrylate and N, N-dimethylacrylamide are out of the range of the amount used, a low peeling force occurs in the AF screen protective film; by comparing the test results of example 1 and comparative example 6, it can be seen that lauryl acrylate can improve the initial tack of the protective film; by comparing the test results of example 6, comparative example 7 and comparative example 8, it can be seen that the first photoinitiator and the second photoinitiator are indispensable, wherein the first photoinitiator mainly plays a role of surface drying of the coating film, the second photoinitiator plays a role of deep curing, and only the two functions are combined, a good curing effect can be achieved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims (10)

1. The adhesive applied to the AF display screen protective film is characterized by comprising the following components in parts by weight:
80-120 parts of acrylic resin;
2-10 parts of isobornyl methacrylate;
0.5-5 parts of lauryl acrylate;
0.1-1 part of 1, 6-hexanediol diacrylate;
5-15 parts of hydroxyethyl acrylate;
1.5-2.0 parts of a first photoinitiator;
0.30-0.50 parts of a second photoinitiator;
the molecular weight of the polyacrylic resin is 25-40 ten thousand, and the acrylic resin is formed by polymerizing a hard monomer, a soft monomer and a functional monomer; the weight part of the hard monomer is 5-25 parts, the weight part of the soft monomer is 60-80 parts, and the weight part of the functional monomer is 10-40 parts;
the glass transition temperature of the soft monomer is less than 0 ℃; the glass transition temperature of the hard monomer is greater than 0 ℃; the functional monomer comprises a monomer containing hydroxyl, a monomer containing carboxyl, a monomer containing epoxy, a monomer containing nitrogen, a monomer containing cycloparaffin and a monomer containing heterocycle.
2. The adhesive for an AF display screen protective film according to claim 1, wherein said functional monomers comprise N, N-dimethylacrylamide and dicyclopentadiene diacrylate; the N, N-dimethylacrylamide accounts for 6-40% of the functional monomer; the dicyclopentadiene diacrylate accounts for 10-42% of the functional monomer.
3. The adhesive for an AF display screen protective film according to claim 2, wherein the hard monomer comprises one or more of methyl methacrylate, ethyl methacrylate, isopropyl methacrylate, isobutyl methacrylate, methyl acrylate, vinyl acetate, acrylonitrile, styrene; the soft monomer is one or more of butyl acrylate, isooctyl acrylate and isodecyl acrylate; the hydroxyl-containing monomer comprises one or more of hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate and hydroxybutyl acrylate; the carboxyl group-containing monomer includes one or more of methacrylic acid and acrylic acid; the epoxy-containing monomer comprises one or more of glycidyl acrylate and glycidyl methacrylate; the nitrogen-containing monomer comprises one or more of N, N-dimethylacrylamide, N-diethylacrylamide and acrylamide; the cycloparaffin-containing monomer is isobornyl methacrylate; the monomer containing the heterocycle comprises one or more of tetrahydrofuran acrylate, tetrahydrofuran methacrylate and ethoxylated dicyclopentadiene acrylate.
4. The adhesive for an AF display screen protective film according to claim 2, wherein the acrylic resin is prepared by reacting the following components in parts by weight:
5-15 parts of methyl methacrylate;
65-75 parts of isooctyl acrylate;
1-8 parts of acrylic acid;
1-8 parts of tetrahydrofuran acrylate;
1-8 parts of isobornyl methacrylate;
1-5 parts of glycidyl methacrylate;
3-8 parts of dicyclopentadiene diacrylate;
2-8 parts of N, N-dimethylacrylamide;
1-8 parts of hydroxypropyl acrylate;
0.5-4.0 parts of a third photoinitiator.
5. The adhesive for an AF display screen protective film according to claim 1, 2 or 3, wherein the preparation method of the acrylic resin comprises the steps of:
adding a soft monomer, a hard monomer, a functional monomer and a third photoinitiator into a reaction kettle, and carrying out ultraviolet radiation polymerization after removing oxygen to obtain the acrylic resin.
6. The adhesive for an AF display screen protective film according to claim 2, wherein the third photoinitiator comprises one or two of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexyl phenyl ketone, and benzophenone.
7. The adhesive for an AF display screen protective film according to any one of claims 1 to 5, wherein the adhesive further comprises 0.1 to 0.5 part by weight of an ultraviolet absorber; and/or, further comprises 0.1-0.5 weight part of antioxidant; and/or the first photoinitiator comprises one or two of 2-hydroxy-2-methyl-1-phenyl-1-acetone and 1-hydroxycyclohexyl phenyl ketone; and/or the second photoinitiator comprises one or two of 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide and 2,4, 6-trimethylbenzoyl phenyl ethyl phosphonate;
preferably, the ultraviolet light absorber is one, two or a mixture of three or more of UV-9, UV-284 and UV-328;
preferably, the antioxidant is one, two or a mixture of three or more of antioxidant 168, antioxidant 1010 and antioxidant 1076.
8. The method for preparing the adhesive for the AF display screen protection film according to any one of claims 1 to 7, wherein the acrylic resin, isobornyl methacrylate, lauryl acrylate, 1, 6-hexanediol diacrylate, hydroxyethyl acrylate, the ultraviolet absorber, the antioxidant, the first photoinitiator and the second photoinitiator are weighed according to a ratio, and stirred and mixed uniformly.
9. The use of the adhesive according to any one of claims 1 to 7, wherein the adhesive is coated on a substrate, cured by ultraviolet irradiation, and then attached with a release film.
10. An optical film comprising the adhesive according to any one of claims 1 to 8.
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