CN111690351A - Polaroid adhesive and production process thereof - Google Patents
Polaroid adhesive and production process thereof Download PDFInfo
- Publication number
- CN111690351A CN111690351A CN202010609235.6A CN202010609235A CN111690351A CN 111690351 A CN111690351 A CN 111690351A CN 202010609235 A CN202010609235 A CN 202010609235A CN 111690351 A CN111690351 A CN 111690351A
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- China
- Prior art keywords
- acrylate
- parts
- pet release
- release film
- film
- Prior art date
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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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/24—Homopolymers or copolymers of amides or imides
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polarising Elements (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A polaroid adhesive comprises acrylate pressure-sensitive adhesive made of acrylate polymer, a PET release film substrate and a PET release film heavy film, wherein the acrylate polymer comprises acrylic acid, methyl acrylate, methyl methacrylate, alpha-methacrylic acid, styrene, ethyl acetate, N-hydroxymethyl acrylamide, 2-hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, isooctyl acrylate and azodiisobutyronitrile, the acrylate pressure-sensitive adhesive is coated on the PET release film light film, is dried by an oven and is attached to the other side of the PET release film heavy film, and the PET release film adhesive has the advantages of good initial adhesion, good adhesion, high holding adhesion and the like, has good bonding and re-peeling performances, is good in heat resistance and is suitable for various polaroids.
Description
Technical Field
The invention belongs to the technical field of polaroids, and particularly relates to a polaroid adhesive and a production process thereof.
Background
As a polarizer for LCD (liquid crystal panel display), a polyvinyl alcohol film (PVA film) is usually made by adsorbing a dichroic substance (commonly used iodine and dichroic dye), stretching and drying the adsorbed material to form a PVA film having a polarizing function, and then attaching (at least one side) an inner protective film (commonly used cellulose triacetate film TAC film) to the PVA film with an adhesive (glue). The polarizer made of the dichroic substance using iodine is generally called "iodine-based polarizer", and the polarizer made of the dichroic substance using a dye is generally called "dye-based polarizer". Iodine-based polarizers have significant advantages in transmittance, polarization degree, contrast, etc., compared to dye-based polarizers, and thus are widely used. Currently, mainstream LCD display devices, such as televisions, notebook computers, monitors, industrial displays, mobile phones, etc., all use iodine-based polarizers. As the range of LCD devices increases, the LCD devices are used more and more in severe environments (e.g., high temperature, low temperature, high humidity, strong light, etc.) for a long time.
At present, after the polaroid on the market is attached to the LCD screen glass cover plate, adverse phenomena such as warping, bubbles, layering, peeling and the like occur. The pressure-sensitive adhesive for the polaroid has higher requirements on initial adhesion, permanent adhesion and weather resistance, the initial adhesion has larger influence on lamination defoaming, the permanent adhesion has important influence on lamination warping delamination and re-peeling, and the weather resistance has better effects on high temperature and high humidity resistance and the like. Therefore, development of a polarizer having excellent thermal stability is urgently required in the market, and in order to improve the high temperature resistance of an iodine-based polarizer, it is an effective method to improve the thermal stability and the adhesive property of an adhesive (glue) for attaching a polarizer film and a TAC film.
Disclosure of Invention
In view of the above, the present invention provides a polarizer adhesive and a production process thereof.
The technical solution of the invention is as follows: the polaroid adhesive comprises acrylate pressure-sensitive adhesive made of acrylate polymer, a PET release film substrate and a PET release film heavy film, wherein the acrylate polymer comprises acrylic acid, methyl acrylate, methyl methacrylate, alpha-methacrylic acid, styrene, ethyl acetate, N-hydroxymethyl acrylamide, 2-hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, isooctyl acrylate and azodiisobutyronitrile, and the PET release film heavy film is coated on the PET release film light film, dried by an oven and attached to the other surface of the PET release film light film.
The invention is further improved in that: the acrylate polymer comprises 3-6 parts of acrylic acid, 15-20 parts of methyl acrylate, 8-12 parts of methyl methacrylate, 40-50 parts of isooctyl acrylate, 8-12 parts of butyl acrylate, 4-7 parts of styrene, 2-3 parts of hydroxyethyl acrylate, 2-3 parts of N-hydroxymethyl acrylamide and 2-3 parts of hydroxybutyl acrylate.
The invention is further improved in that: the acrylate polymer comprises 5 parts of acrylic acid, 17.5 parts of methyl acrylate, 10 parts of methyl methacrylate, 45 parts of isooctyl acrylate, 10 parts of butyl acrylate, 5 parts of styrene, 2.5 parts of hydroxyethyl acrylate, 2.5 parts of N-hydroxymethyl acrylamide and 2.5 parts of hydroxybutyl acrylate.
The invention also provides a production process of the polarizer adhesive, which comprises the steps of mixing and stirring the polyacrylate pressure-sensitive adhesive, the curing agent and the solvent in proportion with the acrylate polymer in a light-shielding cup, standing for a period of time, naturally defoaming to obtain the acrylate pressure-sensitive adhesive, coating the prepared acrylate pressure-sensitive adhesive on a PET release film light film, drying by an oven, and attaching a PET release film heavy film on the other surface of the PET release film light film.
The invention is further improved in that: the mixture in the light shielding cup is uniformly stirred by a dispersion machine, wherein the stirring speed is 400-600rpm/min, and the stirring time is 15-60 min.
The invention is further improved in that: the standing time is not less than 30 min.
Compared with the prior art, the invention has the beneficial effects that: the adhesive has the advantages of good initial adhesion, good adhesion, high permanent adhesion and the like, has good bonding and re-peeling performances, improves heat resistance well, and is suitable for various polaroids.
Detailed Description
The following embodiments will be described in detail with reference to the accompanying examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present application can be fully understood and implemented.
Example 1:
the technical solution of the embodiment is as follows: a polarizer adhesive comprises acrylate pressure-sensitive adhesive made of acrylate polymer, a PET release film substrate and a PET release film heavy film, wherein the acrylate polymer comprises acrylic acid, methyl acrylate, methyl methacrylate, alpha-methacrylic acid, styrene, ethyl acetate, N-hydroxymethyl acrylamide, 2-hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, isooctyl acrylate and azodiisobutyronitrile, the acrylate pressure-sensitive adhesive is coated on the PET release film light film, is dried by an oven and is attached to the other surface of the PET release film heavy film, and the PET release film heavy film is shown in Table 1,
| PET release film light film |
| High-performance acrylate pressure-sensitive adhesive |
| PET release film heavy film |
This example provides a production process of a polarizer adhesive, which first prepares an acrylate polymer, where the acrylate polymer includes 5 parts of acrylic acid, 17.5 parts of methyl acrylate, 10 parts of methyl methacrylate, 45 parts of isooctyl acrylate, 10 parts of butyl acrylate, 5 parts of styrene, 2.5 parts of hydroxyethyl acrylate, 2.5 parts of N-hydroxymethyl acrylamide, and 2.5 parts of hydroxybutyl acrylate. Then, mixing and stirring a polyacrylate pressure-sensitive adhesive, a curing agent and a solvent in a shading cup and the acrylate polymer uniformly according to a proportion, wherein the stirring speed is 500rpm/min and the stirring time is 30min, standing for 30min, and then naturally defoaming to obtain the acrylate pressure-sensitive adhesive, coating the prepared acrylate pressure-sensitive adhesive on a PET release film substrate, drying by an oven, attaching a PET release film heavy film on the other side of the PET release film heavy film, tearing off a PET release film light film, and then compounding the PET release film light film on a polarizer, wherein the proportion is as shown in Table 2:
| PET release film heavy film |
| High-performance acrylate pressure-sensitive adhesive |
| Polaroid |
| Polarizer protective film |
Compared with the prior art, the beneficial effect of this embodiment is: the adhesive has the advantages of good initial adhesion, good adhesion, high permanent adhesion and the like, has good bonding and re-peeling performances, improves heat resistance well, and is suitable for various polaroids.
Example 2:
it differs from example 1 only in the ratio of the components in the acrylate polymer.
The acrylate polymer comprises 6 parts of acrylic acid, 20 parts of methyl acrylate, 12 parts of methyl methacrylate, 40 parts of isooctyl acrylate, 10 parts of butyl acrylate, 4 parts of styrene, 2 parts of hydroxyethyl acrylate, 3 parts of N-hydroxymethyl acrylamide and 3 parts of hydroxybutyl acrylate.
Example 3:
it differs from examples 1 and 2 only in the ratio of the components in the acrylate polymer.
The acrylate polymer comprises 3 parts of acrylic acid, 15 parts of methyl acrylate, 8 parts of methyl methacrylate, 50 parts of isooctyl acrylate, 11 parts of butyl acrylate, 7 parts of styrene, 2 parts of hydroxyethyl acrylate, 2 parts of N-hydroxymethyl acrylamide and 2 parts of hydroxybutyl acrylate.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A polarizer adhesive, characterized in that: the pressure-sensitive adhesive comprises an acrylate pressure-sensitive adhesive prepared from an acrylate polymer, a PET release film substrate and a PET release film heavy film, wherein the acrylate polymer comprises acrylic acid, methyl acrylate, methyl methacrylate, alpha-methacrylic acid, styrene, ethyl acetate, N-hydroxymethyl acrylamide, 2-hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxybutyl acrylate, isooctyl acrylate and azodiisobutyronitrile, and the PET release film heavy film is coated on the PET release film light film and attached to the other surface of the PET release film light film after being dried by an oven.
2. The polarizer adhesive of claim 1, wherein: the acrylate polymer comprises 3-6 parts of acrylic acid, 15-20 parts of methyl acrylate, 8-12 parts of methyl methacrylate, 40-50 parts of isooctyl acrylate, 8-12 parts of butyl acrylate, 4-7 parts of styrene, 2-3 parts of hydroxyethyl acrylate, 2-3 parts of N-hydroxymethyl acrylamide and 2-3 parts of hydroxybutyl acrylate.
3. The polarizer adhesive of claim 1, wherein: the acrylate polymer comprises 5 parts of acrylic acid, 17.5 parts of methyl acrylate, 10 parts of methyl methacrylate, 45 parts of isooctyl acrylate, 10 parts of butyl acrylate, 5 parts of styrene, 2.5 parts of hydroxyethyl acrylate, 2.5 parts of N-hydroxymethyl acrylamide and 2.5 parts of hydroxybutyl acrylate.
4. A process for producing a polarizer adhesive according to claim 1, wherein: mixing and stirring a polyacrylate pressure-sensitive adhesive, a curing agent and a solvent in a shading cup in proportion with the acrylate polymer uniformly, standing for a period of time, and naturally defoaming to obtain the acrylate pressure-sensitive adhesive, coating the prepared acrylate pressure-sensitive adhesive on a PET release film light film, drying by an oven, and attaching a PET release film heavy film on the other surface of the PET release film light film.
5. A process for producing a polarizer adhesive according to claim 3, wherein: the mixture in the light shielding cup is uniformly stirred by a dispersion machine, wherein the stirring speed is 400-600rpm/min, and the stirring time is 15-60 min.
6. A process for producing a polarizer adhesive according to claim 3, wherein: the standing time is not less than 30 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609235.6A CN111690351A (en) | 2020-06-30 | 2020-06-30 | Polaroid adhesive and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609235.6A CN111690351A (en) | 2020-06-30 | 2020-06-30 | Polaroid adhesive and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111690351A true CN111690351A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010609235.6A Pending CN111690351A (en) | 2020-06-30 | 2020-06-30 | Polaroid adhesive and production process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN111690351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637423A (en) * | 2021-08-25 | 2021-11-12 | 南京汇鑫光电材料有限公司 | Ultraviolet-resistant acrylic pressure-sensitive adhesive tape and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075141A1 (en) * | 2006-11-22 | 2010-03-25 | Tokyo Ohka Kogyo Co., Ltd. | Adhesive composition and film adhesive |
| CN106520033A (en) * | 2016-10-18 | 2017-03-22 | 无锡海特新材料研究院有限公司 | Acrylic ester pressure-sensitive adhesive with high permanent adhesion performance at 80 DEG C and preparation method thereof |
| CN111073547A (en) * | 2019-12-27 | 2020-04-28 | 合肥乐凯科技产业有限公司 | Polyester film protective film and preparation method thereof |
-
2020
- 2020-06-30 CN CN202010609235.6A patent/CN111690351A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100075141A1 (en) * | 2006-11-22 | 2010-03-25 | Tokyo Ohka Kogyo Co., Ltd. | Adhesive composition and film adhesive |
| CN106520033A (en) * | 2016-10-18 | 2017-03-22 | 无锡海特新材料研究院有限公司 | Acrylic ester pressure-sensitive adhesive with high permanent adhesion performance at 80 DEG C and preparation method thereof |
| CN111073547A (en) * | 2019-12-27 | 2020-04-28 | 合肥乐凯科技产业有限公司 | Polyester film protective film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113637423A (en) * | 2021-08-25 | 2021-11-12 | 南京汇鑫光电材料有限公司 | Ultraviolet-resistant acrylic pressure-sensitive adhesive tape and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200922 |
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| RJ01 | Rejection of invention patent application after publication |