CN115216240A - High-transmittance optical adhesive tape - Google Patents
High-transmittance optical adhesive tape Download PDFInfo
- Publication number
- CN115216240A CN115216240A CN202110599008.4A CN202110599008A CN115216240A CN 115216240 A CN115216240 A CN 115216240A CN 202110599008 A CN202110599008 A CN 202110599008A CN 115216240 A CN115216240 A CN 115216240A
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- CN
- China
- Prior art keywords
- parts
- optical adhesive
- adhesive tape
- acrylate
- type layer
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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
- 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
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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
- 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
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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
- 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
- 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
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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
- C09J2433/00—Presence of (meth)acrylic polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a high-light-transmittance optical adhesive tape, which comprises a heavy-peeling release layer, a light-peeling release layer and an optical adhesive layer positioned between a first release layer and a second release layer, wherein the optical adhesive layer is formed by mixing and curing the following components in parts by weight: 100 parts of isooctyl acrylate, 20-40 parts of o-phenylphenoxyethyl acrylate, 10-12 parts of acrylamide, 3-5 parts of hydroxypropyl acrylate, 4-6 parts of terpene tackifying resin, 3-5 parts of tetrakis (trimethylsiloxy) titanium, 0.4-1 part of 4, 6-bis (octylthiomethyl) o-cresol, 0.2-0.5 part of ethynylcyclohexanol, 0.6-2 parts of photoinitiator, 0.3-1 part of antioxidant and 1-3 parts of curing agent. The high-light-transmittance optical adhesive tape disclosed by the invention is low in linear shrinkage rate, so that the optical adhesive layer has better gap filling performance, the local generated internal stress is greatly reduced, and the display and full-lamination effects are improved.
Description
Technical Field
The invention relates to the field of adhesive tapes, in particular to a high-light-transmittance optical adhesive tape.
Background
In recent years, with the development of the electronic industry, the variety of optical electronic products is more and more, and the optical adhesive is more and more demanded as a matching product of the electronic industry, but the demand is higher and higher, and the use requirement of the optical adhesive is diversified. In the application of optical and electronic products, especially in the application occasions such as large-size display, the reject ratio of the display and full-lamination effects is increased, so how to improve the lamination performance in the application occasions such as large-size display and the like in the prior art becomes a technical problem to be faced by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a high-light-transmittance optical adhesive tape which is low in linear shrinkage rate, so that an optical adhesive layer has better gap filling performance, the local generated internal stress is greatly reduced, and the display and full-lamination effects are improved.
In order to achieve the purpose, the technical scheme of the brightener is as follows: the utility model provides a high luminousness optical adhesive tape, peels off from type layer and lie in first from type layer, second from the optical adhesive layer between the type layer including heavily peeling off from type layer, light, the optical adhesive layer is formed by the component mixed solidification of following parts by weight:
100 parts of isooctyl acrylate, namely 100 parts of isooctyl acrylate,
20 to 40 parts of o-phenyl phenoxyethyl acrylate,
10 to 12 parts of acrylamide,
3 to 5 parts of hydroxypropyl acrylate,
4 to 6 parts of terpene tackifying resin,
3 to 5 portions of tetra (trimethylsiloxy) titanium,
0.4 to 1 part of 4, 6-di (octylthiomethyl) o-cresol,
0.2 to 0.5 portion of ethynyl cyclohexanol,
0.6 to 2 parts of photoinitiator,
0.3 to 1 part of antioxidant,
1 to 3 parts of curing agent.
The technical scheme of further improvement in the technical scheme is as follows:
1. in the scheme, the acrylic acid hard monomer is methyl acrylate, methyl methacrylate, isoborneol methacrylate or acrylamide.
2. In the scheme, the antioxidant is at least one of dialkyl phosphite, triisooctyl phosphite and thiophosphoryl disulfide.
3. In the above scheme, the curing agent is 1, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, di-t-butyl peroxide or t-butyl peroxy (2-ethylhexanoate).
4. In the scheme, the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-acetone or 1-hydroxy-cyclohexyl phenyl ketone.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the high-light-transmittance optical adhesive tape, an optical adhesive layer is formed by adding 3 to 5 parts of tetrakis (trimethylsiloxy) titanium and 0.4 to 1 part of 4, 6-bis (octylthiomethyl) o-cresol to 100 parts of isooctyl acrylate, 20 to 40 parts of o-phenylphenoxyethyl acrylate and 3 to 5 parts of hydroxypropyl acrylate, and the linear shrinkage rate is low, so that the optical adhesive layer has better gap filling performance, the local internal stress is greatly reduced, and the display and full-lamination effects are improved.
2. The invention relates to a high-light-transmittance optical adhesive tape, wherein an optical adhesive layer of the high-light-transmittance optical adhesive tape is based on 100 parts of isooctyl acrylate, 20 to 40 parts of o-phenylphenoxyethyl acrylate, 3 to 5 parts of hydroxypropyl acrylate and 0.4 to 1 part of 4, 6-di (octylthiomethyl) o-cresol, and 0.2 to 0.5 part of ethynylcyclohexanol is further added, so that the peel strength of the obtained optical adhesive tape exceeds 1200gf/inch.
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 in describing the present invention and simplifying 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 a specific case to those of ordinary skill in the art.
The invention is further described below with reference to the following examples:
examples 1 to 4: the utility model provides a high light transmittance ratio optical adhesive tape, peels off from type layer and lie in first from type layer, the second from the optical adhesive layer between the type layer including heavily peeling off from type layer, light, the optical adhesive layer is formed by the component mixing solidification of following parts by weight, as shown in Table 1:
TABLE 1
In example 1, the antioxidant was dialkyl phosphite, the curing agent was t-butyl peroxy (2-ethylhexanoate), and the photoinitiator was 1-hydroxy-cyclohexylbenzophenone.
In example 2, the antioxidant was triisooctylphosphite, the curing agent was t-butyl peroxy (2-ethylhexanoate), and the photoinitiator was 2-hydroxy-2-methyl-1-phenyl-1-propanone.
In example 3, the antioxidant was thiophosphoryl disulfide, the curing agent was di-t-butyl peroxide, and the photoinitiator was 2-hydroxy-2-methyl-1-phenyl-1-propanone.
In example 4, the antioxidant was dialkyl phosphite, the curing agent was 1, 1-bis (t-butylperoxy) -3, 3, 5-trimethylcyclohexane, and the photoinitiator was 2-hydroxy-2-methyl-1-phenyl-1-propanone.
The preparation method of the high-light-transmittance optical adhesive tape comprises the following steps: the method comprises the following steps:
mixing and stirring 100 parts of isooctyl acrylate, 20 to 40 parts of o-phenylphenoxyethyl acrylate, 10 to 12 parts of acrylamide, 3 to 5 parts of hydroxypropyl acrylate, 4 to 6 parts of terpene tackifying resin, 3 to 5 parts of tetra (trimethylsiloxy) titanium, 0.4 to 1 part of 4, 6-di (octylthiomethyl) o-cresol, 0.2 to 0.5 part of ethynylcyclohexanol, 0.6 to 2 parts of photoinitiator, 0.3 to 1 part of antioxidant and 1 to 3 parts of curing agent uniformly to form a paste agent;
step two, uniformly coating the adhesive on the re-peeling release layer;
step three, carrying out ultraviolet curing on the adhesive to form an optical adhesive layer;
and step four, covering the light stripping release layer on the cured optical adhesive layer to obtain the high-light-transmittance optical adhesive tape.
Comparative examples 1 to 3: the utility model provides an optical adhesive tape, including heavily peeling off from type layer, light peel off from type layer and lie in first from type layer, the second from the optical adhesive layer between the type layer, optical adhesive layer 3 is formed by the component mixing solidification of following parts by weight, as shown in Table 2:
TABLE 2
In comparative examples 1 and 2, the antioxidant was dialkyl phosphite, the curing agent was t-butyl peroxy (2-ethylhexanoate), and the photoinitiator was 1-hydroxy-cyclohexylbenzophenone.
The comparative example was prepared in the same manner as in example.
The optical adhesive layers obtained in the above examples 1 to 4 and comparative examples 1 to 3, the performance test and the peel force test method are as follows: cutting the adhesive tape into sample strips with the width of 24.5 mm according to the standard of ASMTD3330, standing in an environment with the temperature of 23 +/-1 ℃ and the humidity of 50 +/-5%, attaching a 340-degree steel plate, rolling back and forth for 2 times at the speed of 300mm/min by using a 2kg compression roller, and testing 180-degree stripping force after 20 min; as shown in table 3:
TABLE 3
As shown in the evaluation results of Table 3, the linear shrinkage of the optical adhesive tape of the invention is lower than that of the comparative example 1 and the comparative example 2 in the examples 1 to 4, and the peeling force of the examples 1 to 4 exceeds 1200gf/inch and is higher than that of the comparative example 2 and the comparative example 3, so that the optical adhesive tape of the invention has low linear shrinkage, better gap filling performance is realized, the local generated internal stress is greatly reduced, and the display and full-lamination effects are improved; and the peeling force of the obtained optical adhesive tape can be made to exceed 1200gf/inch.
The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high luminousness optical adhesive tape, peels off from type layer and lie in first from type layer, second from the optical adhesive layer between the type layer, its characterized in that including heavily peeling off from type layer, light: the optical adhesive layer is formed by mixing and curing the following components in parts by weight:
100 parts of isooctyl acrylate, namely 100 parts of isooctyl acrylate,
20 to 40 parts of o-phenyl phenoxyethyl acrylate,
10 to 12 parts of acrylamide,
3 to 5 parts of hydroxypropyl acrylate,
4 to 6 parts of terpene tackifying resin,
3 to 5 portions of tetra (trimethylsiloxy) titanium,
0.4 to 1 part of 4, 6-di (octylthiomethyl) o-cresol,
0.2 to 0.5 portion of ethynyl cyclohexanol,
0.6 to 2 portions of photoinitiator,
0.3 to 1 part of antioxidant,
1 to 3 parts of curing agent.
2. A high transmittance optical tape according to claim 1, wherein: the antioxidant is at least one of dialkyl phosphite, triisooctyl phosphite and thiophosphoryl disulfide.
3. A high transmittance optical tape according to claim 1, wherein: the photoinitiator is 2-hydroxy-2-methyl-1-phenyl-1-acetone or 1-hydroxy-cyclohexyl phenyl ketone.
4. A high transmittance optical tape according to claim 1, wherein: the curing agent is 1, 1-bis (tert-butylperoxy) -3, 3, 5-trimethylcyclohexane, di-tert-butyl peroxide or tert-butyl peroxy (2-ethyl hexanoate).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599008.4A CN115216240A (en) | 2021-05-31 | 2021-05-31 | High-transmittance optical adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110599008.4A CN115216240A (en) | 2021-05-31 | 2021-05-31 | High-transmittance optical adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115216240A true CN115216240A (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110599008.4A Pending CN115216240A (en) | 2021-05-31 | 2021-05-31 | High-transmittance optical adhesive tape |
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| Country | Link |
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| CN (1) | CN115216240A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268441A (en) * | 1991-11-28 | 1993-12-07 | Wacker-Chemie Gmbh | One-component RTV compositions |
| CN104277567A (en) * | 2014-10-27 | 2015-01-14 | 合肥旭阳铝颜料有限公司 | Highly dispersed luminous aluminum pigment and preparation method thereof |
| CN105694800A (en) * | 2016-02-17 | 2016-06-22 | 深圳市新纶科技股份有限公司 | Optically transparent glue composition with organic silicone liquid and method for preparing optically transparent glue composition |
| CN107722918A (en) * | 2017-10-27 | 2018-02-23 | 东莞兆舜有机硅科技股份有限公司 | A kind of sensor encapsulant and preparation method thereof |
| CN108192102A (en) * | 2017-12-30 | 2018-06-22 | 汕头市骏码凯撒有限公司 | A kind of non-protonic solvent type dealcoholysis room temperature vulcanized silicone rubber and preparation method thereof |
| CN109627996A (en) * | 2018-11-14 | 2019-04-16 | 华南理工大学 | A kind of touch screen fitting high transparency Optical transparent adhesive and its synthetic method |
| CN111100237A (en) * | 2019-12-23 | 2020-05-05 | 无锡德贝尔光电材料有限公司 | High-refractive-index alkaline water soluble resin, preparation method and high-refractive-index photoresist |
| CN112745786A (en) * | 2021-01-12 | 2021-05-04 | 江苏斯迪克新材料科技股份有限公司 | Optical adhesive with high refractive index and preparation method thereof |
-
2021
- 2021-05-31 CN CN202110599008.4A patent/CN115216240A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5268441A (en) * | 1991-11-28 | 1993-12-07 | Wacker-Chemie Gmbh | One-component RTV compositions |
| CN104277567A (en) * | 2014-10-27 | 2015-01-14 | 合肥旭阳铝颜料有限公司 | Highly dispersed luminous aluminum pigment and preparation method thereof |
| CN105694800A (en) * | 2016-02-17 | 2016-06-22 | 深圳市新纶科技股份有限公司 | Optically transparent glue composition with organic silicone liquid and method for preparing optically transparent glue composition |
| CN107722918A (en) * | 2017-10-27 | 2018-02-23 | 东莞兆舜有机硅科技股份有限公司 | A kind of sensor encapsulant and preparation method thereof |
| CN108192102A (en) * | 2017-12-30 | 2018-06-22 | 汕头市骏码凯撒有限公司 | A kind of non-protonic solvent type dealcoholysis room temperature vulcanized silicone rubber and preparation method thereof |
| CN109627996A (en) * | 2018-11-14 | 2019-04-16 | 华南理工大学 | A kind of touch screen fitting high transparency Optical transparent adhesive and its synthetic method |
| CN111100237A (en) * | 2019-12-23 | 2020-05-05 | 无锡德贝尔光电材料有限公司 | High-refractive-index alkaline water soluble resin, preparation method and high-refractive-index photoresist |
| CN112745786A (en) * | 2021-01-12 | 2021-05-04 | 江苏斯迪克新材料科技股份有限公司 | Optical adhesive with high refractive index and preparation method thereof |
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