CN111073548A - Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method - Google Patents
Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method Download PDFInfo
- Publication number
- CN111073548A CN111073548A CN201911394166.5A CN201911394166A CN111073548A CN 111073548 A CN111073548 A CN 111073548A CN 201911394166 A CN201911394166 A CN 201911394166A CN 111073548 A CN111073548 A CN 111073548A
- Authority
- CN
- China
- Prior art keywords
- matte
- release film
- adhesive tape
- pressure
- sensitive adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
- 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
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- 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
- C09J2409/00—Presence of diene rubber
- C09J2409/005—Presence of diene rubber in the release coating
-
- 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
- C09J2425/00—Presence of styrenic polymer
- C09J2425/005—Presence of styrenic polymer in the release coating
-
- 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
- C09J2461/00—Presence of condensation polymers of aldehydes or ketones
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/005—Presence of polyester in the release coating
-
- 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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- 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
- C09J2483/00—Presence of polysiloxane
- C09J2483/005—Presence of polysiloxane in the release coating
Abstract
The invention discloses a matte adhesive tape release film for a flexible OLED module, which is of a matte structure and comprises a release film substrate, a bottom coating and a silicon release layer which are sequentially arranged from top to bottom. The invention also discloses a preparation method of the matte adhesive tape release film for the flexible OLED module. The invention further discloses a matte double-sided adhesive tape for the flexible OLED module and a preparation method of the matte double-sided adhesive tape. The matte double-sided adhesive tape comprises a basic release film, a second pressure-sensitive adhesive layer, an adhesive tape base material, a first pressure-sensitive adhesive layer and a matte adhesive tape release film which are sequentially arranged from top to bottom. This mute light double-sided sticky tape when being used for the part of bonding display module assembly, not only can guarantee better exhaust function, and laminating surfacing, bonding structure can not show on the OLED display screen, improves the whole quality and the product yields of OLED display module assembly.
Description
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to a matte adhesive tape release film for a flexible OLED module, a matte double-sided adhesive tape and a preparation method of the matte double-sided adhesive tape.
Background
As the market demand of flexible OLED display screens increases, the quality requirements thereof are also higher and higher. In the prior art, the bonding and fixing of important parts inside the display module are realized by adopting double-sided grid glue, and the grid air exhaust function of the grid glue is mainly utilized to improve the yield of the fitting. The surface of the grid glue is provided with a grid structure (the size of the grid is about 20-200 um). After the grid glue is applied to the flexible OLED display screen, the grid structure of the grid glue is easy to display on the OLED display screen, so that the display quality of the display screen is influenced, and abnormal phenomena are caused; moreover, the prior grid glue is difficult to eliminate the grid phenomenon after the application through the adjustment of the formula. Therefore, it is required to develop a bonding product suitable for a flexible OLED display to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a matte adhesive tape release film for a flexible OLED module, a matte double-sided adhesive tape and a preparation method; this mute light double-sided sticky tape when being used for the part of bonding display module assembly, not only can guarantee better exhaust function, and laminating surfacing, bonding structure can not show on the OLED display screen, improves the whole quality of OLED display module assembly and product yields.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the utility model provides a flexible OLED module is with mute light sticky tape from type membrane, this mute light sticky tape is from type membrane for mute light structure, and it includes from last to down set gradually from type substrate, under coat and silicon from the type layer.
Preferably, the preparation raw material of the base coat comprises the following components in percentage by mass: 20-35% of nitrile rubber, 60-75% of organic solvent for rubber and 1-5% of curing agent for rubber; the thickness of the primer layer is 5 to 10 μm.
Preferably, the raw materials for preparing the silicon release layer comprise the following components in percentage by mass: 65-70% of silicone oil, 1-3% of curing agent for silicone oil, 0.5-1.5% of platinum catalyst, 1-3% of polystyrene microsphere and 25-30% of organic solvent for silicone oil; the thickness of the silicon release layer is 3-5 μm.
Preferably, the organic solvent for rubber is one of ethyl acetate, butyl acetate, toluene and xylene.
Preferably, the organic solvent for silicone oil is one of isobutyl acetate, n-butyl acetate, toluene and xylene.
Preferably, the substrate for the release film is a PET substrate, and the thickness of the PET substrate is 25-125 μm.
The invention also provides a preparation method of the matte adhesive tape release film for the flexible OLED module, which comprises the following steps:
(1) dissolving nitrile rubber by using an organic solvent for rubber, adding a curing agent for rubber, stirring and mixing uniformly to obtain a primer coating liquid, coating the primer coating liquid on a substrate for a release film, and drying to obtain a primer compounded on the substrate for the release film;
(2) and (2) mixing silicone oil, a curing agent for silicone oil, a platinum catalyst, polystyrene microspheres and an organic solvent for silicone oil, uniformly stirring to obtain a release coating liquid, coating the release coating liquid on the base coat obtained in the step (1), drying, and curing at normal temperature to form a silicon release layer compounded on the base coat so as to obtain the matte adhesive tape release film compounded by the base material for the release film, the base coat and the silicon release layer.
The invention further provides a matte double-sided adhesive tape for the flexible OLED module, which comprises a basic release film, a second pressure-sensitive adhesive layer, an adhesive tape base material, a first pressure-sensitive adhesive layer and a matte adhesive tape release film which are sequentially arranged from top to bottom.
Preferably, the preparation raw materials of the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer comprise the following components in percentage by mass: 15 to 20 percent of acrylic resin, 0.1 to 0.3 percent of curing agent for resin, 2 to 5 percent of tackifying resin and 75 to 82 percent of organic solvent for resin.
Preferably, the tackifying resin is one or a combination of two or more of petroleum resin, phenolic resin and xylene resin.
Preferably, the organic solvent for resin is one of ethyl acetate, ethyl formate, butyl acetate and methyl acetate.
Preferably, the basic release film is a PET release film; the tape substrate is a PET substrate.
The invention also provides a preparation method of the matte double-sided adhesive tape for the flexible OLED module, which comprises the following steps:
(1) according to the formula, mixing acrylic resin, a curing agent for resin, tackifying resin and an organic solvent for resin, uniformly stirring, standing and defoaming to obtain a pressure-sensitive adhesive coating liquid;
(2) coating the pressure-sensitive adhesive coating liquid obtained in the step (1) on a matte adhesive tape release film, drying to form a first pressure-sensitive adhesive layer compounded on the matte adhesive tape release film, and then adhering an adhesive tape substrate on the first pressure-sensitive adhesive layer to obtain a semi-finished product I;
(3) and (2) coating the pressure-sensitive adhesive coating liquid prepared in the step (1) on a basic release film, drying to obtain a second pressure-sensitive adhesive layer compounded on the basic release film to form a semi-finished product II, then laminating the semi-finished product II with the adhesive tape base material of the semi-finished product I through the second pressure-sensitive adhesive layer, and curing at high temperature to obtain the matte double-sided adhesive tape.
The invention has the beneficial effects that:
the matte adhesive tape release film is composed of a release film substrate, a bottom coating and a silicon release coating, wherein the silicon release coating is formed into a matte rough structure compounded with the bottom coating by matching silicone oil, a curing agent for the silicone oil, a platinum catalyst, polystyrene microspheres and an organic solvent component for the silicone oil; the matte rough structure is provided with particles uniformly and densely distributed on the surface of the structure, and the particle size of the particles is 2-3 mu m; based on the structural characteristics of the matte adhesive tape release film, a pressure-sensitive adhesive layer formed by coating a pressure-sensitive adhesive coating liquid on the matte adhesive tape release film and drying the pressure-sensitive adhesive coating liquid also forms a matte rough structure with uniformly and densely distributed surface particles (the particle diameter of the particles is 2-3 microns), so that an exhaust structure is formed by the particles with extremely small particle diameter, and a better exhaust effect can be ensured when the pressure-sensitive adhesive layer of the matte double-sided adhesive tape is attached to an OLED display screen; after the bonding is finished, the ultrafine particles of the matte rough structure of the pressure-sensitive adhesive layer can be quickly leveled under the action of certain fluidity due to extremely small particle size, so that the bonding surface is flat, the particle structure cannot be projected on a display screen, the display quality of the display screen is ensured, and the bonding yield and the overall quality of the OLE D display module are improved;
in addition, the release force of the release film for the matte adhesive tape is stable and controllable, the residual adhesion rate is high, and the amount of silicone oil transferred to the pressure-sensitive adhesive layer is very small; the matte double-sided adhesive tape has high bonding strength, high initial adhesion and good high-temperature adhesion.
Moreover, the matte double-sided tape product can be thinner, and is more beneficial to the thinning design of an OLED product compared with a grid double-sided tape.
Drawings
Fig. 1 is a schematic structural view of release films of matte tapes of embodiments 1 and 2 of the present invention.
Fig. 2 is a schematic structural view of a matte double-sided tape in embodiments 3 and 4 of the present invention.
In fig. 1 and 2, 11-a substrate for a release film; 12-a base coat; 13-a silicon release layer; 21-a basic release film; 22-a second pressure sensitive adhesive layer; 23-a tape substrate; 24-a first pressure sensitive adhesive layer; 25-matte tape release films.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Embodiments 1 and 2 provide a matte adhesive tape release film for a flexible OLED module, and embodiments 3 and 4 provide a matte double-sided adhesive tape for a flexible OLED module. The sources of the starting materials used in examples 1 to 4 are each remarked in parentheses.
Example 1
As shown in fig. 1, the release film for a matte tape provided in this example 1 includes a release film substrate 11, a primer layer 12, and a silicon release layer 13, which are sequentially disposed from top to bottom.
The preparation raw materials of the bottom coating 11 comprise the following components in percentage by mass: nitrile rubber 1072 (south emperor of taiwan) 29%, ethyl acetate (sincerity chemical materials ltd, suzhou) 68%, and rubber curing agent XR-100 (west chemical technology) 3%;
the preparation raw materials of the silicon release layer comprise the following components in percentage by mass: silicone oil SYL-OFFTMSL 200 (Dow Corning) 70%, curing agent SYL-OFF for silicone oilTMSL 7028 (Dow Corning) 3%, platinum catalyst SYL-OFFTM4000 (US Dow Corning) 0.5%, polystyrene microsphere (2-3 μm Suzhou nano micro technology) 1%, butyl acetate 25.5%.
In example 1, the release film substrate 11 was a PET substrate, and the thickness of the PET substrate was 30 μm.
The preparation method of the matte adhesive tape release film comprises the following steps:
(1) according to the dosage of the formula, dissolving the nitrile rubber by using ethyl acetate, then adding a curing agent for rubber, stirring and mixing uniformly to obtain a primer coating liquid, coating the primer coating liquid on a PET (polyethylene terephthalate) substrate by using a scraper, and drying to obtain a primer compounded on the PET substrate; the thickness of the primer layer was 10 μm.
(2) And (2) mixing silicone oil, a curing agent for silicone oil, a platinum catalyst, polystyrene microspheres and ethyl acetate, uniformly stirring to obtain a release coating liquid, coating the release coating liquid on the base coat obtained in the step (1) by using a scraper, drying, rolling, and curing at normal temperature for 24 hours to form a silicon release layer compounded on the base coat, so as to obtain the matte adhesive tape release film compounded by the base material for the release film, the base coat and the silicon release layer.
Example 2
As shown in fig. 1, the release film for a matte tape provided in this example 2 includes a release film substrate 11, a primer layer 12, and a silicon release layer 13, which are sequentially disposed from top to bottom.
The preparation raw materials of the bottom coating 11 comprise the following components in percentage by mass: nitrile rubber 1072 (south emperor of taiwan) 29%, ethyl acetate (sincerity chemical materials ltd, suzhou) 70%, and rubber curing agent XR-100 (west chemical technology) 1%;
the preparation raw materials of the silicon release layer comprise the following components in percentage by mass: silicone oil SYL-OFFTMSL 200 (Dow Corning) 70%, curing agent SYL-OFF for silicone oilTMSL 7028 (Dow Corning) 2%, platinum catalyst SYL-OFFTM4000% (Dow Corning) 1%, polystyrene microsphere (Suzhou nano micro technology of 2-3 μm) 1%, and butyl acetate 26%.
In example 2, the release film substrate 11 was a PET substrate, and the thickness of the PET substrate was 30 μm.
The preparation method of the matte adhesive tape release film comprises the following steps:
(1) according to the dosage of the formula, dissolving the nitrile rubber by using ethyl acetate, then adding a curing agent for rubber, stirring and mixing uniformly to obtain a primer coating liquid, coating the primer coating liquid on a PET (polyethylene terephthalate) substrate by using a scraper, and drying to obtain a primer compounded on the PET substrate; the thickness of the primer layer was 5 μm.
(2) And (2) mixing silicone oil, a curing agent for silicone oil, a platinum catalyst, polystyrene microspheres and ethyl acetate, uniformly stirring to obtain a release coating liquid, coating the release coating liquid on the base coat obtained in the step (1) by using a scraper, drying, rolling, and curing at normal temperature for 24 hours to form a silicon release layer compounded on the base coat, so as to obtain the matte adhesive tape release film compounded by the base material for the release film, the base coat and the silicon release layer.
Example 3
As shown in fig. 2, the matte double-sided tape for a flexible OLED module provided in this embodiment 3 includes a basic release film 21, a second pressure-sensitive adhesive layer 22, a tape base material 23, a first pressure-sensitive adhesive layer 24, and a matte tape release film 25 prepared in embodiment 1, which are sequentially disposed from top to bottom.
The preparation raw materials of the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer comprise the following components in percentage by mass: acrylic resin 8541 (Kunshan Shimei) 15%, hardener A-104 (Suzhou Saiwu) 0.1%, tackifying resin (phenolic resin 12603 Suzhou Saiwu applied technology Co., Ltd.) 3%, and ethyl acetate 81.9%.
In this example 3, the base release film was a PET release film; the tape substrate is a PET substrate.
The preparation method of the matte double-sided adhesive tape for the flexible OLED module comprises the following steps:
(1) according to the formula, mixing acrylic resin, a curing agent for resin, tackifying resin and an organic solvent for resin, uniformly stirring, standing and defoaming to obtain a pressure-sensitive adhesive coating liquid;
(2) coating the pressure-sensitive adhesive coating liquid obtained in the step (1) on a matte adhesive tape release film, drying to form a first pressure-sensitive adhesive layer compounded on the matte adhesive tape release film, and then adhering an adhesive tape substrate on the first pressure-sensitive adhesive layer to obtain a semi-finished product I; the thickness of the first pressure-sensitive adhesive layer is 15 mu m, and the thickness of the adhesive tape base material is 6 mu m;
(3) coating the pressure-sensitive adhesive coating liquid prepared in the step (1) on a basic release film, drying to obtain a second pressure-sensitive adhesive layer compounded on the basic release film so as to form a semi-finished product II compounded with the basic release film and the second pressure-sensitive adhesive layer, then laminating the semi-finished product II with the adhesive tape base material of the semi-finished product I through the second pressure-sensitive adhesive layer, and curing at the high temperature of 40 ℃ for 3 days to obtain the matte double-sided adhesive tape; wherein the thickness of the second pressure-sensitive adhesive layer is 9 μm.
Example 4
As shown in fig. 2, the matte double-sided tape for a flexible OLED module provided in this embodiment 4 includes a basic release film 21, a second pressure-sensitive adhesive layer 22, a tape base material 23, a first pressure-sensitive adhesive layer 24, and a matte tape release film 25 prepared in embodiment 2, which are sequentially disposed from top to bottom.
The preparation raw materials of the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer comprise the following components in percentage by mass: 15% of acrylic resin 8541 (Kunmushu plum), 0.2% of curing agent A-104 (Suzhou saiwu), 4% of tackifying resin (phenolic resin 12603 Suzhou saiwu) and 80.8% of ethyl acetate.
In this example 4, the base release film was a PET release film; the tape substrate is a PET substrate.
The preparation method of the matte double-sided adhesive tape for the flexible OLED module comprises the following steps:
(1) according to the formula, mixing acrylic resin, a curing agent for resin, tackifying resin and an organic solvent for resin, uniformly stirring, standing and defoaming to obtain a pressure-sensitive adhesive coating liquid;
(2) coating the pressure-sensitive adhesive coating liquid obtained in the step (1) on a matte adhesive tape release film, drying to form a first pressure-sensitive adhesive layer compounded on the matte adhesive tape release film, and then adhering an adhesive tape substrate on the first pressure-sensitive adhesive layer to obtain a semi-finished product I; the thickness of the first pressure-sensitive adhesive layer is 23 μm, and the thickness of the adhesive tape base material is 6 μm;
(3) coating the pressure-sensitive adhesive coating liquid prepared in the step (1) on a basic release film, drying to obtain a second pressure-sensitive adhesive layer compounded on the basic release film so as to form a semi-finished product II compounded with the basic release film and the second pressure-sensitive adhesive layer, then laminating the semi-finished product II with the adhesive tape base material of the semi-finished product I through the second pressure-sensitive adhesive layer, and curing at the high temperature of 40 ℃ for 3 days to obtain the matte double-sided adhesive tape; wherein the thickness of the second pressure-sensitive adhesive layer is 11 μm.
Carrying out performance test on the release films of the matte tapes obtained in the embodiments 1 and 2; the release force of the matte tape release film is tested by utilizing a T ESA 7475 standard, and the residual adhesion rate of the matte tape release film is tested by utilizing a NITTO 31B standard; the test results are shown in table 1.
Table 1 matte tape release film performance test results
| Test items | Performance of | Test standard |
| Release force g/25mm | 15～25 | TESA 7475 |
| Residual adhesion% | ≥90 | NITTO 31B |
As can be seen from Table 1, the release force of the release films of the matte tapes of the embodiments 1 and 2 can be controlled within 15-25 g/25mm, the residual adhesion rates are high (both greater than 90%), and the silicone oil migration phenomenon is not easy to occur.
Carrying out performance test on the matte double-sided adhesive tapes obtained in the embodiments 3 and 4; wherein, the bonding strength of the matte double-sided tape is tested by using GB/T2792-1998 standard, the initial adhesion of the matte double-sided tape is tested by using GB/T4852-2002 standard (rolling ball method), and the high-temperature holding viscosity of the matte double-sided tape is tested by using GB/T4851-1998 standard; the test results are shown in table 2.
Table 2 performance test results of matte double-sided adhesive tape
As can be seen from Table 2, both the two pressure-sensitive adhesive layers of the matte double-sided adhesive tape have higher bonding strength; for the initial adhesion test, the test method adopts 32 steel balls for testing, the second pressure-sensitive adhesive layer of the matte double-sided adhesive tape can at least stick the No. 8 steel ball, and the first pressure-sensitive adhesive layer can at least stick the No. 4 steel ball, so that the double-sided adhesive tape has better initial adhesion; the matte double-sided adhesive tape disclosed by the invention has a retention force of more than 72h at a high temperature of 80 ℃, which indicates that the matte double-sided adhesive tape has better high-temperature adhesive property.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a flexible OLED module is with mute light sticky tape from type membrane which characterized in that, this mute light sticky tape is from type membrane for the mute light structure, and it includes from last to down set gradually from type substrate, under coat and silicon from the type layer for the membrane.
2. The matte adhesive tape release film for the flexible OLED module according to claim 1, wherein the preparation raw materials of the primer layer comprise the following components in percentage by mass: 20-35% of nitrile rubber, 60-75% of organic solvent for rubber and 1-5% of curing agent for rubber.
3. The matte tape release film for the flexible OLED module according to claim 1 or 2, wherein the raw materials for preparing the silicon release layer comprise the following components in percentage by mass: 65-70% of silicone oil, 1-3% of curing agent for silicone oil, 0.5-1.5% of platinum catalyst, 1-3% of polystyrene microsphere and 25-30% of organic solvent for silicone oil.
4. The matte adhesive tape release film for the flexible OLED module according to claim 2, wherein the organic solvent for rubber is one of ethyl acetate, butyl acetate, toluene and xylene.
5. The matte adhesive tape release film for the flexible OLED module according to claim 3, wherein the organic solvent for silicone oil is one of butyl acetate, toluene and xylene.
6. The preparation method of the matte tape release film for the flexible OLED module as claimed in any one of claims 1 to 5, wherein the method comprises the following steps:
(1) dissolving nitrile rubber by using an organic solvent for rubber, adding a curing agent for rubber, stirring and mixing uniformly to obtain a primer coating liquid, coating the primer coating liquid on a substrate for a release film, and drying to obtain a primer compounded on the substrate for the release film;
(2) and (2) mixing silicone oil, a curing agent for silicone oil, a platinum catalyst, polystyrene microspheres and an organic solvent for silicone oil, uniformly stirring to obtain a release coating liquid, coating the release coating liquid on the base coat obtained in the step (1), drying, and curing at normal temperature to form a silicon release layer compounded on the base coat so as to obtain the matte adhesive tape release film compounded by the base material for the release film, the base coat and the silicon release layer.
7. A matte double-sided tape for a flexible OLED module, which is characterized by comprising a basic release film, a second pressure-sensitive adhesive layer, a tape substrate, a first pressure-sensitive adhesive layer and the matte tape release film of any one of claims 1 to 5 which are arranged in sequence from top to bottom.
8. The matte double-sided adhesive tape for the flexible OLED module as claimed in claim 7, wherein the raw materials for preparing the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer comprise the following components in percentage by mass: 15 to 20 percent of acrylic resin, 0.1 to 0.3 percent of curing agent for resin, 2 to 5 percent of tackifying resin and 75 to 82 percent of organic solvent for resin.
9. The matte double-sided tape for the flexible OLED module as claimed in claim 8, wherein the organic solvent for the resin is one of ethyl acetate, ethyl formate, butyl acetate and methyl acetate.
10. The method for preparing the matte double-sided adhesive tape for the flexible OLED module as claimed in any one of claims 7 to 9, comprising the following steps:
(1) according to the formula, mixing acrylic resin, a curing agent for resin, tackifying resin and an organic solvent for resin, uniformly stirring, standing and defoaming to obtain a pressure-sensitive adhesive coating liquid;
(2) coating the pressure-sensitive adhesive coating liquid obtained in the step (1) on a matte adhesive tape release film, drying to form a first pressure-sensitive adhesive layer compounded on the matte adhesive tape release film, and then adhering an adhesive tape substrate on the first pressure-sensitive adhesive layer to obtain a semi-finished product I;
(3) and (2) coating the pressure-sensitive adhesive coating liquid prepared in the step (1) on a basic release film, drying to obtain a second pressure-sensitive adhesive layer compounded on the basic release film to form a semi-finished product II, then laminating the semi-finished product II with the adhesive tape base material of the semi-finished product I through the second pressure-sensitive adhesive layer, and curing at high temperature to obtain the matte double-sided adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911394166.5A CN111073548A (en) | 2019-12-30 | 2019-12-30 | Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911394166.5A CN111073548A (en) | 2019-12-30 | 2019-12-30 | Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111073548A true CN111073548A (en) | 2020-04-28 |
Family
ID=70319552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911394166.5A Pending CN111073548A (en) | 2019-12-30 | 2019-12-30 | Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111073548A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592668A (en) * | 2020-12-15 | 2021-04-02 | 珠海冠宇电池股份有限公司 | Single-layer hot melt adhesive and soft package battery and preparation method thereof |
| CN112662326A (en) * | 2020-12-23 | 2021-04-16 | 苏州赛伍应用技术股份有限公司 | Grid foam adhesive tape for damping OLED display device and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578624A (en) * | 1991-09-21 | 1993-03-30 | Lintec Corp | Double-sided tacky tape and its production |
| CN102757741A (en) * | 2012-07-09 | 2012-10-31 | 苏州斯迪克新材料科技股份有限公司 | Frosted release material |
| CN106553395A (en) * | 2015-09-25 | 2017-04-05 | 藤森工业株式会社 | The excellent mould release membrance of fissility |
| CN108219704A (en) * | 2018-01-08 | 2018-06-29 | 绍兴旭源新材料科技有限公司 | A kind of preparation method of the extremely light release film of off-type force |
| CN209759366U (en) * | 2018-11-08 | 2019-12-10 | 昆山汉品电子有限公司 | PET exhaust adhesive tape |
-
2019
- 2019-12-30 CN CN201911394166.5A patent/CN111073548A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578624A (en) * | 1991-09-21 | 1993-03-30 | Lintec Corp | Double-sided tacky tape and its production |
| CN102757741A (en) * | 2012-07-09 | 2012-10-31 | 苏州斯迪克新材料科技股份有限公司 | Frosted release material |
| CN106553395A (en) * | 2015-09-25 | 2017-04-05 | 藤森工业株式会社 | The excellent mould release membrance of fissility |
| CN108219704A (en) * | 2018-01-08 | 2018-06-29 | 绍兴旭源新材料科技有限公司 | A kind of preparation method of the extremely light release film of off-type force |
| CN209759366U (en) * | 2018-11-08 | 2019-12-10 | 昆山汉品电子有限公司 | PET exhaust adhesive tape |
Non-Patent Citations (2)
| Title |
|---|
| 韩长日 等: "《胶粘剂生产工艺与技术》", 31 January 2018, 科学技术文献出版社 * |
| 高晶 等: "《柔性版印刷500问》", 30 September 2016, 文化发展出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112592668A (en) * | 2020-12-15 | 2021-04-02 | 珠海冠宇电池股份有限公司 | Single-layer hot melt adhesive and soft package battery and preparation method thereof |
| CN112662326A (en) * | 2020-12-23 | 2021-04-16 | 苏州赛伍应用技术股份有限公司 | Grid foam adhesive tape for damping OLED display device and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI642749B (en) | Light-diffusing adhesive layer and light-diffusing adhesive film | |
| CN104210195B (en) | A kind of high adherence Anti-static release liner | |
| CN110484169B (en) | High-temperature-resistant anti-rebound double-sided adhesive tape and adhesive composition | |
| TWI666282B (en) | Adhesive composition, adhesion layer, adhesion sheet and laminated product for touch panel | |
| JP6241816B2 (en) | Optical pressure-sensitive adhesive composition and method for producing optical pressure-sensitive adhesive composition | |
| JP6343836B2 (en) | Light diffusion adhesive layer and light diffusion adhesive film | |
| TWI635150B (en) | Adhesive layer and adhesive film | |
| JP2009299047A (en) | Pressure-sensitive adhesive composition for polarizing plate | |
| US20160334669A1 (en) | Polarizing plate and liquid crystal display panel | |
| CN111073548A (en) | Matte adhesive tape release film for flexible OLED module, matte double-sided adhesive tape and preparation method | |
| CN110564332A (en) | Elastic pressure-sensitive adhesive layer, pressure-sensitive adhesive tape and preparation method of pressure-sensitive adhesive tape | |
| CN111548518A (en) | Ultra-light/ultra-heavy non-silicon release film and preparation method thereof | |
| TWI723153B (en) | Adhesive, optical adhesive sheet, polarizing plate adhesive sheet and liquid crystal cell component | |
| JP6210827B2 (en) | Semiconductor processing sheet | |
| CN113969115A (en) | Rapid leveling ultrathin grid adhesive tape and preparation method thereof | |
| CN112852323A (en) | PET (polyethylene terephthalate) anti-static acrylic protective film and preparation method thereof | |
| CN110938394B (en) | Adhesive, preparation method thereof, adhesive layer prepared from adhesive and thermal de-bonding adhesive tape | |
| CN103740294B (en) | Anti-dazzle acrylic sticker | |
| CN111073558A (en) | High-shear-resistance acrylate pressure-sensitive adhesive, pressure-sensitive adhesive tape and preparation method thereof | |
| JP6796035B2 (en) | Adhesive composition and adhesive film | |
| CN111349413A (en) | Bending-resistant glue for optical film | |
| JP6540984B2 (en) | Adhesive sheet | |
| CN113881365A (en) | Acrylic pressure-sensitive adhesive with thin coating and high viscosity solvent and synthesis method thereof | |
| WO2012134034A2 (en) | Resin composition for an adhesive film, and adhesive film using same | |
| CN210765102U (en) | Thermal decomposition adhesive tape |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200428 |
|
| RJ01 | Rejection of invention patent application after publication |