CN115216254A - Optical cement for electronic product and preparation method thereof - Google Patents
Optical cement for electronic product and preparation method thereof Download PDFInfo
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- CN115216254A CN115216254A CN202110549525.0A CN202110549525A CN115216254A CN 115216254 A CN115216254 A CN 115216254A CN 202110549525 A CN202110549525 A CN 202110549525A CN 115216254 A CN115216254 A CN 115216254A
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- tackifying resin
- acrylate
- optical cement
- electronic products
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- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 239000004568 cement Substances 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title description 8
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 8
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 8
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims abstract description 8
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims abstract description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 6
- JRWNODXPDGNUPO-UHFFFAOYSA-N oxolane;prop-2-enoic acid Chemical compound C1CCOC1.OC(=O)C=C JRWNODXPDGNUPO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- KTALPKYXQZGAEG-UHFFFAOYSA-N 2-propan-2-ylthioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC(C(C)C)=CC=C3SC2=C1 KTALPKYXQZGAEG-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical group C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 4
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 150000003505 terpenes Chemical class 0.000 claims description 4
- 235000007586 terpenes Nutrition 0.000 claims description 4
- FZSHSWCZYDDOCK-UHFFFAOYSA-N 2-methylprop-2-enoic acid;oxolane Chemical compound C1CCOC1.CC(=C)C(O)=O FZSHSWCZYDDOCK-UHFFFAOYSA-N 0.000 claims description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 239000002313 adhesive film Substances 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- 229920001727 cellulose butyrate Polymers 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- -1 tetrahydrofuran acrylic ester Chemical class 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 9
- NQSLZEHVGKWKAY-UHFFFAOYSA-N 6-methylheptyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C(C)=C NQSLZEHVGKWKAY-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/003—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
Abstract
The invention discloses an optical adhesive for an electronic product, which is positioned between a first release film and a second release film and comprises the following components in parts by weight: 100 parts of acrylic resin, 2 to 4 parts of tetrahydrofuran acrylate, 5 to 8 parts of butyl acrylate, 6 to 10 parts of hydroxyethyl acrylate, 1 to 3 parts of tackifying resin, 1 to 2 parts of flatting agent, 0.4 to 1.2 parts of photoinitiator, 3 to 6 parts of hard monomer, 0.8 to 1.5 parts of cellulose acetate-butyrate, 2 to 5 parts of polyoxyethylene polyoxypropylene ether and 0.5 to 1 part of lauroyl peroxide. The optical adhesive for the electronic product improves the defect of hard and brittle after curing, not only improves the flexibility of the product, but also overcomes the continuous radiation from a liquid crystal screen.
Description
Technical Field
The invention relates to the field of optical cement, in particular to optical cement for electronic products and a preparation method thereof.
Background
China is a large producing and consuming country of displays, the market demand is large, but optical adhesives with excellent performance almost completely depend on import, and the localization process of the display industry in China is seriously hindered. The existing display screen protective film is easy to yellow after being used for a long time.
Disclosure of Invention
The invention aims to provide optics for electronic products, which overcomes the defect of hard and brittle after curing, improves the flexibility of the products, and overcomes the continuous radiation from a liquid crystal screen; meanwhile, a preparation method of the optical cement for the electronic product is provided.
In order to achieve the purpose, the technical scheme of the brightener is as follows: the optical adhesive for the electronic product is positioned between a first release film and a second release film and comprises the following components in parts by weight:
100 parts of acrylic resin, namely 100 parts of acrylic resin,
2 to 4 parts of tetrahydrofuran acrylic ester,
5 to 8 parts of butyl acrylate,
6 to 10 parts of hydroxyethyl acrylate,
1 to 3 parts of tackifying resin,
1 to 2 parts of a leveling agent,
0.4 to 1.2 portions of photoinitiator,
3 to 6 parts of hard monomer,
0.8 to 1.5 portions of acetic acid-cellulose butyrate,
2 to 5 portions of polyoxyethylene polyoxypropylene amine ether,
0.5 to 1 part of lauroyl peroxide.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the above embodiment, the tackifying resin includes one or more of C5-series tackifying resin, C9-series tackifying resin, terpene tackifying resin, and hydrogenated rosin tackifying resin.
2. In the scheme, the flatting agent is at least one of an acrylate flatting agent, an organic silicon flatting agent and a fluorocarbon flatting agent.
3. In the above embodiment, the hard monomer is at least one of ethyl methacrylate, tetrahydrofuran methacrylate, cyclohexyl methacrylate, methacrylamide, hydroxyethyl methacrylate, isobornyl acrylate, and glycidyl methacrylate.
4. In the above scheme, the photoinitiator is 1-hydroxycyclohexyl phenyl ketone, 2-benzyl-2-dimethylamine-1- (4-morpholine benzyl phenyl) butanone or 2-isopropyl thioxanthone.
The technical scheme of the preparation method adopted by the invention is as follows: a preparation method of optical cement for electronic products comprises the following steps:
step one, mixing 100 parts of acrylic resin and 2-4 parts of tetrahydrofuran acrylate to form a first mixture;
adding 5-8 parts of butyl acrylate, 6-10 parts of hydroxyethyl acrylate, 1-3 parts of tackifying resin, 1-2 parts of flatting agent, 3-6 parts of hard monomer, 0.8-1.5 parts of cellulose acetate butyrate, 2-5 parts of polyoxyethylene polyoxypropylene ether and 0.5-1 part of lauroyl peroxide into the first mixture in sequence, and mixing to form a second mixture;
thirdly, adding 0.4 to 1.2 parts of photoinitiator into the second mixture, uniformly stirring to form adhesive, and coating the adhesive on the surface of the PET base material layer;
and step four, coating the film obtained in the step three with a release film after ultraviolet irradiation to form the flexible protective adhesive film.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the optical adhesive for electronic products and the preparation method thereof, 2 to 4 parts of tetrahydrofuran acrylate and 6 to 10 parts of hydroxyethyl acrylate are added with 2 to 5 parts of polyoxyethylene polyoxypropylene amine ether and 0.5 to 1 part of lauroyl peroxide, so that the defect of hard and brittle after curing is overcome, and the flexibility of the product is improved; in addition, the optical adhesive layer is further added with lauroyl peroxide on the basis of adding polyoxyethylene polyoxypropylene ether, so that the defect that the liquid crystal display is easy to age and yellow due to continuous radiation and long-term use is overcome, and the transparent state can be maintained for a long time, so that the reliability of the product is improved.
Drawings
FIG. 1 is a schematic structural diagram of an optical adhesive for electronic products according to the present invention.
In the above drawings: 1. a first release film; 2. a second release film; 3. and (3) optical cement.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the illustrated orientations or positional relationships, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described below with reference to examples:
examples 1 to 4: an optical adhesive for electronic products, wherein an optical adhesive 3 is positioned between a first release film 1 and a second release film 2, and the optical adhesive 3 comprises the following components in parts by weight as shown in table 1:
TABLE 1
In example 1, the tackifying resin was a terpene tackifying resin, the leveling agent was an acrylate leveling agent, the hard monomer was cyclohexyl methacrylate, the soft acrylate monomer was isooctyl methacrylate, and the photoinitiator was 2-isopropyl thioxanthone.
In example 2, the tackifying resin was a C5-series tackifying resin, the leveling agent was an organic silicon-based leveling agent, the hard monomer was ethyl methacrylate, the acrylic soft monomer was lauryl acrylate, and the photoinitiator was 1-hydroxycyclohexyl phenyl ketone.
In example 3, the tackifying resin was a hydrogenated rosin tackifying resin, the leveling agent was a fluorocarbon leveling agent, the hard monomer was glycidyl methacrylate, the acrylic soft monomer was isooctyl methacrylate, and the photoinitiator was 1-hydroxycyclohexyl phenyl ketone.
In example 4, the tackifier resin was a C5-series tackifier resin, the leveling agent was an organic silicon leveling agent, the hard monomer was tetrahydrofuran methacrylate, the acrylic soft monomer was lauryl acrylate, and the photoinitiator was 2-isopropyl thioxanthone.
The preparation method of the optical cement for the electronic product comprises the following steps:
step one, mixing acrylic resin and tetrahydrofuran acrylate to form a first mixture;
step two, adding butyl acrylate, hydroxyethyl acrylate, tackifying resin, a leveling agent, a hard monomer, cellulose acetate butyrate, polyoxyethylene polyoxypropylene ether and lauroyl peroxide into the first mixture in sequence, and mixing to form a second mixture;
adding a photoinitiator into the second mixture, uniformly stirring to form an adhesive, and coating the adhesive on the surface of the PET base material layer;
and step four, coating the film obtained in the step three with a release film after ultraviolet irradiation to form the flexible protective adhesive film.
Comparative examples 1 to 2: the optical adhesive is positioned between a first release film and a second release film and comprises the following components in parts by weight, as shown in Table 2:
TABLE 2
In comparative examples 1 to 3, the tackifying resin was terpene tackifying resin, the leveling agent was an acrylate leveling agent, the hard monomer was cyclohexyl methacrylate, the soft acrylate monomer was isooctyl methacrylate, and the photoinitiator was 2-isopropylthioxanthone.
The comparative example was prepared in the same manner as in example.
The films obtained in example 1 and comparative examples 1 to 3 were subjected to yellow index detection: placing into a UV aging oven at 60 deg.C and 0.9w/cm 2 Standing for 400h, and testing the yellow index of the aged sample; the modulus of elasticity was measured using a dynamic mechanical analyzer, as shown in table 3:
TABLE 3
| Test items | Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Index of yellowness | 0.15 | 0.35 | 0.18 | 0.32 |
| Modulus of elasticity (KPa) | 31 | 51 | 57 | 54 |
；
As shown in the evaluation results of Table 3, the yellowness index of example 1 is lower than that of comparative examples 1 and 3, which indicates that the invention is not easy to age and yellow after long-term use, thereby improving the reliability of the product; the elastic modulus of the example 1 is lower than that of the comparative examples 1 to 3, so that the defect of hard and brittle after curing is overcome, and the flexibility of the product is improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. An optical cement for electronic products, which is characterized in that: the optical adhesive (3) is positioned between the first release film (1) and the second release film (2), and the optical adhesive (3) comprises the following components in parts by weight:
100 parts of acrylic resin, namely 100 parts of acrylic resin,
2 to 4 parts of tetrahydrofuran acrylic ester,
5 to 8 parts of butyl acrylate,
6 to 10 parts of hydroxyethyl acrylate,
1 to 3 parts of tackifying resin,
1 to 2 parts of a leveling agent,
0.4 to 1.2 parts of photoinitiator,
3 to 6 parts of hard monomer,
0.8 to 1.5 portions of acetic acid-cellulose butyrate,
2 to 5 portions of polyoxyethylene polyoxypropylene amine ether,
0.5 to 1 part of lauroyl peroxide.
2. The optical cement for electronic products according to claim 1, wherein: the tackifying resin comprises one or more of C5 series tackifying resin, C9 series tackifying resin, terpene tackifying resin and hydrogenated rosin tackifying resin.
3. The optical cement for electronic products according to claim 1, wherein: the flatting agent is at least one of an acrylate flatting agent, an organic silicon flatting agent and a fluorocarbon flatting agent.
4. The optical cement for electronic products according to claim 1, wherein: the hard monomer is at least one of ethyl methacrylate, tetrahydrofuran methacrylate, cyclohexyl methacrylate, methacrylamide, hydroxyethyl methacrylate, isobornyl acrylate and glycidyl methacrylate.
5. The optical cement for electronic products according to claim 1, wherein: the photoinitiator is 1-hydroxycyclohexyl phenyl ketone, 2-benzyl-2-dimethylamine-1- (4-morpholine benzyl phenyl) butanone or 2-isopropyl thioxanthone.
6. A method for preparing the optical cement for electronic products of claim 1, which is characterized in that: the method comprises the following steps:
step one, mixing 100 parts of acrylic resin and 2-4 parts of tetrahydrofuran acrylate to form a first mixture;
adding 5 to 8 parts of butyl acrylate, 6 to 10 parts of hydroxyethyl acrylate, 1 to 3 parts of tackifying resin, 1 to 2 parts of flatting agent, 3 to 6 parts of hard monomer, 0.8 to 1.5 parts of cellulose acetate-butyrate, 2 to 5 parts of polyoxyethylene polyoxypropylene ether and 0.5 to 1 part of lauroyl peroxide into the first mixture in sequence, and mixing to form a second mixture;
thirdly, adding 0.4 to 1.2 parts of photoinitiator into the second mixture, uniformly stirring to form adhesive, and coating the adhesive on the surface of the PET base material layer;
and step four, adhering the film obtained in the step three to a release film after ultraviolet irradiation to form the flexible protection adhesive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110549525.0A CN115216254A (en) | 2021-05-20 | 2021-05-20 | Optical cement for electronic product and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110549525.0A CN115216254A (en) | 2021-05-20 | 2021-05-20 | Optical cement for electronic product and preparation method thereof |
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|---|---|
| CN115216254A true CN115216254A (en) | 2022-10-21 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090115536A (en) * | 2008-05-02 | 2009-11-05 | 도레이새한 주식회사 | Adhesive composition for plasma display optical material |
| US20120184680A1 (en) * | 2011-01-19 | 2012-07-19 | Nitto Denko Corporation | Optical acrylic pressure-sensitive adhesive composition and optical acrylic pressure-sensitive adhesive tape |
| CN104726052A (en) * | 2015-02-04 | 2015-06-24 | 深圳百丽春新材料科技有限公司 | UV/base coat dual-curing liquid optical cement and preparation method thereof |
| CN109575865A (en) * | 2018-12-18 | 2019-04-05 | 东莞市贝特利新材料有限公司 | A kind of ultraviolet light solidification joint adhesive and preparation method thereof |
| CN110157359A (en) * | 2019-06-21 | 2019-08-23 | 江苏国胶新材料有限公司 | A kind of environment protection tile gum and preparation method thereof |
| CN110437792A (en) * | 2019-07-11 | 2019-11-12 | 广州慧谷工程材料有限公司 | Optical cement and preparation method thereof suitable for the fitting of curved surface polycarbonate plate |
| US20200041695A1 (en) * | 2018-08-02 | 2020-02-06 | Benq Materials Corporation | Anti-reflective film, polarizer comprising the same, and image display comprising the anti-reflective film and/or the polarizer comprising the same |
| CN111073546A (en) * | 2019-12-05 | 2020-04-28 | 江苏晶华新材料科技有限公司 | Optical-grade AB adhesive tape |
| CN111763487A (en) * | 2020-06-30 | 2020-10-13 | 南京汇鑫光电材料有限公司 | Preparation method of adhesive for attaching curved-surface screen |
-
2021
- 2021-05-20 CN CN202110549525.0A patent/CN115216254A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090115536A (en) * | 2008-05-02 | 2009-11-05 | 도레이새한 주식회사 | Adhesive composition for plasma display optical material |
| US20120184680A1 (en) * | 2011-01-19 | 2012-07-19 | Nitto Denko Corporation | Optical acrylic pressure-sensitive adhesive composition and optical acrylic pressure-sensitive adhesive tape |
| CN104726052A (en) * | 2015-02-04 | 2015-06-24 | 深圳百丽春新材料科技有限公司 | UV/base coat dual-curing liquid optical cement and preparation method thereof |
| US20200041695A1 (en) * | 2018-08-02 | 2020-02-06 | Benq Materials Corporation | Anti-reflective film, polarizer comprising the same, and image display comprising the anti-reflective film and/or the polarizer comprising the same |
| CN109575865A (en) * | 2018-12-18 | 2019-04-05 | 东莞市贝特利新材料有限公司 | A kind of ultraviolet light solidification joint adhesive and preparation method thereof |
| CN110157359A (en) * | 2019-06-21 | 2019-08-23 | 江苏国胶新材料有限公司 | A kind of environment protection tile gum and preparation method thereof |
| CN110437792A (en) * | 2019-07-11 | 2019-11-12 | 广州慧谷工程材料有限公司 | Optical cement and preparation method thereof suitable for the fitting of curved surface polycarbonate plate |
| CN111073546A (en) * | 2019-12-05 | 2020-04-28 | 江苏晶华新材料科技有限公司 | Optical-grade AB adhesive tape |
| CN111763487A (en) * | 2020-06-30 | 2020-10-13 | 南京汇鑫光电材料有限公司 | Preparation method of adhesive for attaching curved-surface screen |
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