CN112852321A - Scratch-resistant protective film for electronic liquid crystal display and preparation method thereof - Google Patents
Scratch-resistant protective film for electronic liquid crystal display and preparation method thereof Download PDFInfo
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- CN112852321A CN112852321A CN201911194196.1A CN201911194196A CN112852321A CN 112852321 A CN112852321 A CN 112852321A CN 201911194196 A CN201911194196 A CN 201911194196A CN 112852321 A CN112852321 A CN 112852321A
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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
- C09J7/20—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
- 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
- C09D133/00—Coating compositions 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; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured 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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model provides an electron LCD screen is with resistant protection film of scraping, includes the four layers, and the outer film layer of scraping of being resistant, the second floor is polyethylene terephthalate layer, and the third layer is the silica gel layer, and the inlayer is for leaving the type rete. The raw material for the scratch-resistant film is prepared from the following components in parts by weight: 40-50 parts of polyacrylate emulsion, 3-5 parts of nano titanium dioxide, 1-2 parts of bacterial cellulose, 1-2 parts of curing agent, 3-5 parts of lignin, 6-8 parts of dispersing agent and 3-5 parts of silane coupling agent. The film has good transparency, fingerprint resistance, high hardness and scratch resistance.
Description
Technical Field
The invention belongs to the technical field of plastic processing, and particularly relates to a scratch-resistant protective film for an electronic liquid crystal display and a preparation method thereof.
Background
In order to prevent the surface of the screen of the electronic product from being scratched or worn and affecting the use effect, a screen protection film is generally attached to the surface of the screen of the electronic product. The protective film is generally formed by coating optical grade transparent polyester film (PET) with silica gel and then attaching a transparent Polyester (PET) release film.
The relatively high-grade screen protection film is required to have no fingerprint and scratch resistance when the surface is touched by a clean finger, and the conventional electronic liquid crystal screen protection film on the market generally has poor fingerprint resistance or abrasion resistance, so that the development of a higher-grade scratch-resistant protection film for the electronic liquid crystal screen is required.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a scratch-resistant protective film for an electronic liquid crystal display and a preparation method thereof.
The utility model provides an electron LCD screen is with resistant protection film of scraping, includes the four layers, and the outer resistant rete of scraping that is, the second floor is polyethylene terephthalate (PET) layer, and the third layer is the silica gel layer, and the inlayer is for leaving the type rete.
The raw material for the scratch-resistant film is prepared from the following components in parts by weight:
40-50 parts of polyacrylate emulsion, 3-5 parts of nano titanium dioxide, 1-2 parts of bacterial cellulose, 1-2 parts of curing agent, 3-5 parts of lignin, 6-8 parts of dispersing agent and 3-5 parts of silane coupling agent.
Wherein the solid content of the polyacrylate emulsion is 30-40%.
Wherein the curing agent is polyisocyanate.
The dispersant is polyacrylic acid dispersant.
The silane coupling agent is vinyl trimethoxy silane, has proper adhesive force, can not drop silicon when being uncovered for use, is easy to deform if the adhesive force is too large, and cannot be compounded together if the adhesive force is too small.
The preparation method of the scratch-resistant film mixture comprises the following steps:
(1) uniformly mixing bacterial cellulose and lignin, adding a silane coupling agent, and uniformly mixing;
(2) then adding other components, and uniformly blending to obtain the scratch-resistant film mixture.
The invention discloses a preparation method of a scratch-resistant protective film for an electronic liquid crystal display, which sequentially comprises the following steps of: (1) coating the scratch-resistant layer mixture on a PET film layer, and heating at 90-100 ℃ for 5-6 min;
(2) then carrying out UV irradiation on the coating;
(3) coating a silica gel layer on the other side of the PET film layer, and coating a release film.
The invention has the following beneficial effects: the protective film of the invention is not easy to have fingerprints and is easy to clean, the surface Hardening (HC) treatment reaches 3H, the protective film has the optical effects of scratch resistance, wear resistance and ultrahigh light transmittance, and no adhesive residue is generated after removal.
Detailed Description
The invention is further illustrated by the following examples.
Example 1
The utility model provides an electron LCD screen is with resistant protection film of scraping, includes the four layers, and the outer resistant rete of scraping that is, the second floor is polyethylene terephthalate (PET) layer, and the third layer is the silica gel layer, and the inlayer is for leaving the type rete.
The raw material for the scratch-resistant film is prepared from the following components in parts by weight:
40 parts of polyacrylate emulsion, 5 parts of nano titanium dioxide, 2 parts of bacterial cellulose, 2 parts of a curing agent, 5 parts of lignin, 7 parts of a dispersing agent and 5 parts of a silane coupling agent; wherein the solid content of the polyacrylate emulsion is 30-40%; wherein the curing agent is polyisocyanate; the dispersant is polyacrylic acid dispersant; the silane coupling agent is vinyl trimethoxy silane;
the preparation method of the scratch-resistant film mixture comprises the following steps:
(1) uniformly mixing bacterial cellulose and lignin, adding a silane coupling agent, and uniformly mixing;
(2) then adding other components, and uniformly blending to obtain a scratch-resistant film mixture;
the preparation method of the scratch-resistant protective film for the electronic liquid crystal display sequentially comprises the following steps of:
(1) coating the scratch-resistant layer mixture on a PET film layer, and heating at 90-100 ℃ for 5-6 min;
(2) then carrying out UV irradiation on the coating;
(3) coating a silica gel layer on the other side of the PET film layer, and coating a release film.
Example 2
The utility model provides an electron LCD screen is with resistant protection film of scraping, includes the four layers, and the outer resistant rete of scraping that is, the second floor is polyethylene terephthalate (PET) layer, and the third layer is the silica gel layer, and the inlayer is for leaving the type rete.
The raw material for the scratch-resistant film is prepared from the following components in parts by weight:
45 parts of polyacrylate emulsion, 4 parts of nano titanium dioxide, 2 parts of bacterial cellulose, 2 parts of a curing agent, 5 parts of lignin, 6 parts of a dispersing agent and 5 parts of a silane coupling agent; wherein the solid content of the polyacrylate emulsion is 30-40%; wherein the curing agent is polyisocyanate; the dispersant is polyacrylic acid dispersant; the silane coupling agent is vinyl trimethoxy silane;
the preparation method of the scratch-resistant film mixture comprises the following steps:
(1) uniformly mixing bacterial cellulose and lignin, adding a silane coupling agent, and uniformly mixing;
(2) then adding other components, and uniformly blending to obtain a scratch-resistant film mixture;
the preparation method of the scratch-resistant protective film for the electronic liquid crystal display sequentially comprises the following steps of:
(1) coating the scratch-resistant layer mixture on a PET film layer, and heating at 90-100 ℃ for 5-6 min;
(2) then carrying out UV irradiation on the coating;
(3) coating a silica gel layer on the other side of the PET film layer, and coating a release film.
Example 3
The utility model provides an electron LCD screen is with resistant protection film of scraping, includes the four layers, and the outer resistant rete of scraping that is, the second floor is polyethylene terephthalate (PET) layer, and the third layer is the silica gel layer, and the inlayer is for leaving the type rete.
The raw material for the scratch-resistant film is prepared from the following components in parts by weight:
50 parts of polyacrylate emulsion, 5 parts of nano titanium dioxide, 1 part of bacterial cellulose, 2 parts of a curing agent, 5 parts of lignin, 6 parts of a dispersing agent and 4 parts of a silane coupling agent; wherein the solid content of the polyacrylate emulsion is 30-40%; wherein the curing agent is polyisocyanate; the dispersant is polyacrylic acid dispersant; the silane coupling agent is vinyl trimethoxy silane;
the preparation method of the scratch-resistant film comprises the following steps:
(1) uniformly mixing bacterial cellulose and lignin, adding a silane coupling agent, and uniformly mixing;
(2) then adding other components, and uniformly blending to obtain a scratch-resistant film mixture;
(3) preparing a scratch-resistant film by using the scratch-resistant film mixture;
the preparation method of the scratch-resistant protective film for the electronic liquid crystal display sequentially comprises the following steps of:
(1) coating the scratch-resistant layer mixture on a PET film layer, and heating at 90-100 ℃ for 5-6 min;
(2) then carrying out UV irradiation on the coating;
(3) coating a silica gel layer on the other side of the PET film layer, and coating a release film.
The scratch-resistant protective film for the electronic liquid crystal display prepared by the embodiment achieves the following indexes:
1) and (3) silicon falling test: no silicon is dropped;
2) peeling force: 10-20gf/25 mm;
3) light transmittance: 90% -95%;
4) scratch resistance: not less than 4H;
5) fingerprint prevention effect: fingerprints are not easy to leave, and once the fingerprints are left, the fingerprints can be easily removed by using the cleaning cloth;
6) appearance: no crystal point, no rainbow lines, no scratch and no bubble.
The foregoing describes the general principles and features of the present invention without limitation to the above-described embodiments, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention.
Claims (7)
1. A scratch-resistant protective film for an electronic liquid crystal screen comprises four layers, wherein the outer layer is a scratch-resistant film layer, the second layer is a polyethylene terephthalate layer, the third layer is a silica gel layer, and the inner layer is a release film layer; the raw material for the scratch-resistant film is prepared from the following components in parts by weight: 40-50 parts of polyacrylate emulsion, 3-5 parts of nano titanium dioxide, 1-2 parts of bacterial cellulose, 1-2 parts of curing agent, 3-5 parts of lignin, 6-8 parts of dispersing agent and 3-5 parts of silane coupling agent.
2. The scratch-resistant protective film for electronic liquid crystal screens of claim 1, wherein the polyacrylate emulsion has a solid content of 30 to 40%.
3. The scratch-resistant protective film for electronic liquid crystal display panels according to claim 1, wherein the curing agent is polyisocyanate.
4. The scratch-resistant protective film for electronic liquid crystal screens of claim 1, wherein the dispersant is a polyacrylic dispersant.
5. The scratch-resistant protective film for electronic liquid crystal panels according to claim 1, wherein said silane coupling agent is vinyltrimethoxysilane.
6. The scratch-resistant protective film for the electronic liquid crystal display screen according to claim 1, wherein the preparation method of the scratch-resistant film mixture comprises the following steps:
(1) uniformly mixing bacterial cellulose and lignin, adding a silane coupling agent, and uniformly mixing;
(2) then adding other components, and uniformly blending to obtain the scratch-resistant film mixture.
7. The method for preparing the scratch-resistant protective film for the electronic liquid crystal screen according to claim 1, which comprises the following steps in sequence:
(1) coating the scratch-resistant layer mixture on a PET film layer, and heating at 90-100 ℃ for 5-6 min;
(2) then carrying out UV irradiation on the coating;
(3) coating a silica gel layer on the other side of the PET film layer, and coating a release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911194196.1A CN112852321A (en) | 2019-11-28 | 2019-11-28 | Scratch-resistant protective film for electronic liquid crystal display and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911194196.1A CN112852321A (en) | 2019-11-28 | 2019-11-28 | Scratch-resistant protective film for electronic liquid crystal display and preparation method thereof |
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| CN112852321A true CN112852321A (en) | 2021-05-28 |
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| CN201911194196.1A Pending CN112852321A (en) | 2019-11-28 | 2019-11-28 | Scratch-resistant protective film for electronic liquid crystal display and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103534326A (en) * | 2011-05-17 | 2014-01-22 | 综研化学株式会社 | Adhesive composition for optical component and processed product thereof |
| JP2017218593A (en) * | 2017-07-12 | 2017-12-14 | 三菱ケミカル株式会社 | Laminated polyester film |
| CN108527986A (en) * | 2017-03-03 | 2018-09-14 | 深圳市摩码科技有限公司 | A kind of scratch resistant optical arc face protective film of the low rainbow line of high transparency and preparation method |
| CN208292911U (en) * | 2018-04-03 | 2018-12-28 | 广东鼎立森新材料有限公司 | A kind of novel mobile phone protective film |
| CN109694663A (en) * | 2018-12-05 | 2019-04-30 | 深圳市摩码科技有限公司 | A kind of high transparency protective film and preparation method thereof |
| CN110105896A (en) * | 2019-06-18 | 2019-08-09 | 佛山固泰明科技有限公司 | A kind of curve screens protective film and preparation method thereof |
-
2019
- 2019-11-28 CN CN201911194196.1A patent/CN112852321A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103534326A (en) * | 2011-05-17 | 2014-01-22 | 综研化学株式会社 | Adhesive composition for optical component and processed product thereof |
| CN108527986A (en) * | 2017-03-03 | 2018-09-14 | 深圳市摩码科技有限公司 | A kind of scratch resistant optical arc face protective film of the low rainbow line of high transparency and preparation method |
| JP2017218593A (en) * | 2017-07-12 | 2017-12-14 | 三菱ケミカル株式会社 | Laminated polyester film |
| CN208292911U (en) * | 2018-04-03 | 2018-12-28 | 广东鼎立森新材料有限公司 | A kind of novel mobile phone protective film |
| CN109694663A (en) * | 2018-12-05 | 2019-04-30 | 深圳市摩码科技有限公司 | A kind of high transparency protective film and preparation method thereof |
| CN110105896A (en) * | 2019-06-18 | 2019-08-09 | 佛山固泰明科技有限公司 | A kind of curve screens protective film and preparation method thereof |
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Application publication date: 20210528 |