CN106990457A - A kind of diffusion barrier back coating liquid and preparation method thereof and application method - Google Patents
A kind of diffusion barrier back coating liquid and preparation method thereof and application method Download PDFInfo
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- CN106990457A CN106990457A CN201710356829.9A CN201710356829A CN106990457A CN 106990457 A CN106990457 A CN 106990457A CN 201710356829 A CN201710356829 A CN 201710356829A CN 106990457 A CN106990457 A CN 106990457A
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- diffusion barrier
- parts
- back coating
- coating liquid
- barrier back
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- 238000000576 coating method Methods 0.000 title claims abstract description 139
- 239000011248 coating agent Substances 0.000 title claims abstract description 138
- 238000009792 diffusion process Methods 0.000 title claims abstract description 105
- 230000004888 barrier function Effects 0.000 title claims abstract description 104
- 239000007788 liquid Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- -1 acrylic ester Chemical class 0.000 claims abstract description 52
- 239000011347 resin Substances 0.000 claims abstract description 52
- 229920005989 resin Polymers 0.000 claims abstract description 52
- 239000003960 organic solvent Substances 0.000 claims abstract description 50
- 239000000178 monomer Substances 0.000 claims abstract description 39
- 239000003999 initiator Substances 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 16
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 52
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 28
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 27
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 21
- 239000002216 antistatic agent Substances 0.000 claims description 20
- 239000004611 light stabiliser Substances 0.000 claims description 19
- 239000012752 auxiliary agent Substances 0.000 claims description 16
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 13
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 13
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 10
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 9
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical group COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- 150000001412 amines Chemical class 0.000 claims description 9
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 9
- 125000002091 cationic group Chemical group 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 8
- 230000035484 reaction time Effects 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 7
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 claims description 7
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 7
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 7
- 150000002989 phenols Chemical class 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 230000009477 glass transition Effects 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 238000007790 scraping Methods 0.000 abstract description 17
- 239000000203 mixture Substances 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 238000002834 transmittance Methods 0.000 abstract description 8
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 241001269238 Data Species 0.000 description 12
- 239000010408 film Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002608 ionic liquid Substances 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 5
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 5
- 102000004895 Lipoproteins Human genes 0.000 description 2
- 108090001030 Lipoproteins Proteins 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002527 isonitriles Chemical class 0.000 description 1
- 230000003859 lipid peroxidation Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- 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
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- 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
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- 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
-
- 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
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
-
- 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
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/16—Optical coatings produced by application to, or surface treatment of, optical elements having an anti-static effect, e.g. electrically conducting coatings
-
- 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
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- 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
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
-
- 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
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
- C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Paints Or Removers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides a kind of diffusion barrier back coating liquid and preparation method thereof and application method.The component of the diffusion barrier back coating liquid includes 8 10 parts of hosts, 12 parts of polyisocyanate curing agents and 5 10 part of first organic solvent according to the mass fraction；The host includes acrylic ester resin solution, and the acrylic ester resin solution is prepared by the initiator of the specific monomer composition of 40 60 parts by weight, the second organic solvent of 40 50 parts by weight and 0.5 2 parts by weight.The diffusion barrier back coating liquid is applied to the diffusion barrier back side, solidification obtains diffusion barrier back coating at 120 130 DEG C.Coating prepared by diffusion barrier back coating liquid provided by the present invention has suitable hardness, higher adhesive force, higher scraping and wiping resistance performance, higher light transmittance and high-temp resisting high-humidity resisting performance simultaneously.
Description
Technical field
The invention belongs to optical film technical field of coatings, and in particular to a kind of diffusion barrier back coating liquid and preparation method thereof and
Application method.
Background technology
Diffusion barrier is a kind of optical film being used in thin film transistor liquid crystal display screen (TFT-LCD) backlight module, and it is led
The uniform light that acting on is point-like or linear light source are sent by the coating with light diffusion spreads, and forms face light
Source.To cut into sheet material during diffusion barrier final application to use, edge can produce dry linting when cutting, and can adsorb in the presence of electrostatic
Onto diffusion barrier sheet material, presentation quality is influenceed；Additionally due to the reason for electrostatic, suction-operated can be produced between sheet material, it is difficult point
Open；Articles of sheet material take use when easily caused by friction the back side scratch.And generally solution to the problems described above is to expand
Dissipating one layer of film backsize has the protective coating of the specific function such as antistatic, wear-resisting.
The problem of easily being scratched for the diffusion barrier back side, CN 104312415A disclose a kind of for poly terephthalic acid second
The high abrasion ultraviolet light solidification diffusion barrier coating composition of diol ester (PET), by conventional acrylate and monomer and
Other auxiliary agents are in the presence of light trigger, crosslinking curing formation wear-resistant coating.Because its matrix resin used is conventional
Acrylate, therefore the anti-wear performance of the coating is not good.
Therefore, expect to obtain a kind of diffusion barrier back coating liquid that can make coating that there is higher scraping and wiping resistance performance in this area.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of diffusion barrier back coating liquid and its preparation side
Method and application method.The coating prepared by the diffusion barrier back coating liquid has suitable hardness, higher adhesive force, higher scratch resistance
Wipe performance, higher light transmittance and high-temp resisting high-humidity resisting performance.
For up to this purpose, the present invention uses following technical scheme：
In a first aspect, the present invention provides a kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
8-10 parts (such as 8 parts, 8.1 parts, 8.2 parts, 8.3 parts, 8.4 parts, 8.5 parts, 8.6 parts, 8.7 parts, 8.8 parts, 8.9 parts,
9 parts, 9.1 parts, 9.2 parts, 9.3 parts, 9.4 parts, 9.5 parts, 9.6 parts, 9.7 parts, 9.8 parts, 9.9 parts, 10 parts etc.) host, 1-2 parts
(such as 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts or 2 parts) many isocyanides
Acid esters curing agent and 5-10 parts (such as 5 parts, 5.2 parts, 5.5 parts, 5.8 parts, 6 parts, 6.2 parts, 6.5 parts, 6.8 parts, 7 parts, 7.2 parts,
7.5 parts, 7.8 parts, 8 parts, 8.2 parts, 8.5 parts, 8.8 parts, 9 parts, 9.2 parts, 9.5 parts, 9.8 parts or 10 parts etc.) the first organic solvent；
The host includes acrylic ester resin solution, and the raw material components of the acrylic ester resin solution are by weight
Meter includes：40-60 parts (such as 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts, 50 parts, 51
Part, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts, 57 parts, 58 parts, 59 parts or 60 parts etc.) monomer, 40-50 parts (such as 40 parts, 41
Part, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts or 50 parts etc.) the second organic solvent and 0.5-2 parts of (examples
As 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7
Part, 1.8 parts, 1.9 parts or 2 parts etc.) initiator；
The monomer is selected from methyl methacrylate, cyclohexyl methacrylate, GMA, methyl
At least three kinds of combination in n-butyl acrylate, hydroxyethyl methacrylate or methacrylic acid；It for example can be metering system
The combination of sour methyl esters, cyclohexyl methacrylate and GMA, methyl methacrylate, methacrylic acid
The combination of cyclohexyl and n-BMA, cyclohexyl methacrylate, GMA and methyl-prop
The combination of olefin(e) acid hydroxyl ethyl ester, the combination of cyclohexyl methacrylate, GMA and methacrylic acid, methyl
The combination of n-butyl acrylate, hydroxyethyl methacrylate and methacrylic acid, methyl methacrylate, methacrylic acid hexamethylene
The combination of ester and hydroxyethyl methacrylate, methyl methacrylate, n-BMA and hydroxyethyl methacrylate
Combination etc..
The present invention is combined as raw material by least three kinds monomers of selection, and the acrylic ester resin solution of specific preparation can be straight
Connect as diffusion barrier back coating liquid, it is cured after the coating that is formed there is suitable hardness simultaneously, it is higher adhesive force, higher resistance to
Scratch performance, higher light transmittance and high-temp resisting high-humidity resisting performance.
Preferably, the weight average molecular weight of acrylate is 8000-50000 (examples in the acrylic ester resin solution
Such as 80000,10000,12000,15000,18000,20000,22000,25000,28000,30000,32000,35000,
38000th, 40000,42000,45000,48000 or 50000 etc.), glass transition temperature be 50-90 DEG C (such as 50 DEG C, 52
DEG C, 55 DEG C, 58 DEG C, 60 DEG C, 62 DEG C, 65 DEG C, 68 DEG C, 70 DEG C, 72 DEG C, 75 DEG C, 78 DEG C, 80 DEG C, 82 DEG C, 85 DEG C, 88 DEG C or 90
DEG C etc.), hydroxyl value be 50-200mgKOH/g (such as 50mgKOH/g, 80mgKOH/g, 100mgKOH/g, 120mgKOH/g,
150mgKOH/g, 180mgKOH/g or 200mgKOH/g), acid number be 2-20mgKOH/g (such as 2mgKOH/g, 5mgKOH/g,
8mgKOH/g, 10mgKOH/g, 12mgKOH/g, 15mgKOH/g, 18mgKOH/g or 20mgKOH/g).
Hydroxyl value can determine the crosslink density when back coating liquid that the present invention is provided solidifies, so as to influence the hardness and resistance toization of coating
Other performances such as product.
Preferably, the monomer is made up of the component of following mass fraction：
The mass fraction of methyl methacrylate can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10
Part, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts etc..
The mass fraction of n-BMA can be 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts
Deng.
The mass fraction of hydroxyethyl methacrylate can be 0.5 part, 0.8 part, 1 part, 1.2 parts, 1.5 parts, 1.8 parts, 2
Part, 2.2 parts, 2.5 parts, 2.8 parts, 3 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4 parts, 4.2 parts, 4.5 parts, 4.8 parts or 5 parts etc..
Acrylic ester resin solution is prepared by regioselective monomer composition of the invention, the diffusion barrier finally given can be made
The properties of back coating are further improved.
Preferably, first organic solvent and second organic solvent be each independently selected from toluene, ethyl acetate,
One kind or at least two combination in butanone or butyl acetate；For example can be the combination of toluene and ethyl acetate, toluene with
The combination of butanone, the combination of toluene and butyl acetate, the combination of ethyl acetate and butanone, the group of ethyl acetate and butyl acetate
Conjunction, the combination or toluene of butanone and butyl acetate, the combination of ethyl acetate and butanone etc..
Preferably, the initiator is selected from azodiisobutyronitrile (AIBN), dibenzoyl peroxide (BPO) or lipid peroxidation
In matter (LPO) it is a kind of or at least two combination；For example can be AIBN and BPO combination, AIBN and LPO combination, BPO with
LPO combination or AIBN, BPO and LPO combination.
Preferably, the host also include account for the acrylic ester resin solution quality 0.5-3% (such as 0.5%,
0.8%th, 1%, 1.2%, 1.5%, 1.8%, 2%, 2.2%, 2.5%, 2.8% or 3% etc.) auxiliary agent, the auxiliary agent is to divide
The combination of powder and levelling agent.
Preferably, the dispersant is the electroneutral salt of organic acid and organic amine.
Preferably, the levelling agent is polyethers modified organic silicon solution.
Preferably, the host also include account for the acrylic ester resin solution quality 1-3% (such as 1%, 1.2%,
1.5%th, 1.8%, 2%, 2.2%, 2.5%, 2.8% or 3% etc.) light stabilizer.
Light stabilizer can reduce the injury for the diffusion barrier back coating that blue light, ultraviolet light are provided the present invention, coating is existed
Do not occur xanthochromia or efflorescence under LED/light source long-term irradiation, extend the service life of coating.
Preferably, the light stabilizer is hindered amine light stabilizer and/or Hinered phenols light stabilizer.
Preferably, the host also include account for the acrylic ester resin solution quality 1-3% (such as 1%, 1.2%,
1.5%th, 1.8%, 2%, 2.2%, 2.5%, 2.8% or 3% etc.) antistatic additive.
Antistatic additive helps to reduce the sheet resistance for the diffusion barrier back coating that the present invention is provided, and reaches anlistatig effect
Really.
Preferably, the antistatic additive is selected from cationic antistatic agent, anionic antistatic agent or ion liquid type
One kind or at least two combination in antistatic additive；For example can be anionic antistatic agent and cationic antistatic agent
Combination, the combination of cationic antistatic agent and ionic liquid type antistatic agent, anionic antistatic agent and ionic liquid
The combination of type antistatic additive, or anionic antistatic agent, cationic antistatic agent and ionic liquid type antistatic agent three
Combination.
Preferably, the diffusion barrier back coating liquid according to the mass fraction also include 0.2-1 parts (such as 0.2 part, 0.3 part, 0.4
Part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part etc.) polymethyl methacrylate (PMMA) microballon.
The addition of PMMA microballons, can reduce the contact area between adjacent diaphragms, play a part of preventing adhesion.
Second aspect, the present invention provides a kind of preparation method of above-mentioned diffusion barrier back coating liquid, comprises the following steps：
(1) by the monomer of formula ratio, 80-90% (such as 80%, 81%, 82%, 83%, 84%, 85%, 86%,
87%th, 88%, 89% or 90%) initiator of formula ratio and formula ratio the second organic solvent mixing, by obtained solution by
1:1-3 (such as 1:1、1:1.2、1:1.5、1:1.8、1:2、1:2.2、1:2.5、1:2.8 or 1:3 etc.) mass ratio is divided into bed material
And dropping material；
(2) under inert gas shielding, by the bed material be warming up to 75-90 DEG C (such as 75 DEG C, 76 DEG C, 77 DEG C, 78 DEG C,
79 DEG C, 80 DEG C, 81 DEG C, 82 DEG C, 83 DEG C, 84 DEG C, 85 DEG C, 86 DEG C, 87 DEG C, 88 DEG C, 89 DEG C or 90 DEG C etc.), keeping temperature, stirring
React 30-60min (such as 30min, 32min, 35min, 38min, 40min, 42min, 45min, 48min, 50min, 52min,
55min, 58min or 60min etc.)；
(3) reach after the reaction time in step (2), start that the dropping material is added dropwise, keeping temperature is 75-90 DEG C of (example
Such as 75 DEG C, 76 DEG C, 77 DEG C, 78 DEG C, 79 DEG C, 80 DEG C, 81 DEG C, 82 DEG C, 83 DEG C, 84 DEG C, 85 DEG C, 86 DEG C, 87 DEG C, 88 DEG C, 89 DEG C
Or 90 DEG C etc.), will with 2-3h (such as 2h, 2.1h, 2.2h, 2.3h, 2.4h, 2.5h, 2.6h, 2.7h, 2.8h, 2.9h or 3h)
The dropping material completion of dropping；
(4) after after the dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained,
Keeping temperature be 75-90 DEG C (such as 75 DEG C, 76 DEG C, 77 DEG C, 78 DEG C, 79 DEG C, 80 DEG C, 81 DEG C, 82 DEG C, 83 DEG C, 84 DEG C, 85 DEG C,
86 DEG C, 87 DEG C, 88 DEG C, 89 DEG C or 90 DEG C etc.), continue to react 2-5h (such as 2h, 2.5h, 3h, 3.5h, 4h, 4.5h or 5h),
Obtain the acrylic ester resin solution；
(5) optionally auxiliary agent, optionally light stabilizer and optionally will be added after the acrylic ester resin solution cools down
Antistatic additive, obtains the host；
(6) host of formula ratio, polyisocyanate curing agent, the first organic solvent and optionally PMMA microballons are mixed
Close, obtain the diffusion barrier back coating liquid.
The present invention makes obtained acrylic resin have suitable physics and chemistry by controlling the parameters such as specific temperature, time
Property, coordinates other components, so that the diffusion barrier back coating liquid that provides of the present invention has suitable hardness, higher adhesive force,
Higher scraping and wiping resistance performance, higher light transmittance and high-temp resisting high-humidity resisting performance.
Preferably, being cooled to described in step (5) is cooled to less than 50 DEG C.
Preferably, the reaction described in step (2)-(4) is carried out under agitation.
Preferably, the rotating speed of the stirring is each independently 100-300r/min；For example can be 100r/min,
120r/min, 150r/min, 180r/min, 200r/min, 220r/min, 250r/min, 280r/min or 300r/min etc..
The third aspect, the present invention provides a kind of application method of above-mentioned diffusion barrier back coating liquid, and the application method is：By institute
State diffusion barrier back coating liquid and be applied to the diffusion barrier back side, 120-130 DEG C (such as 120 DEG C, 121 DEG C, 122 DEG C, 123 DEG C, 124 DEG C,
125 DEG C, 126 DEG C, 127 DEG C, 128 DEG C, 129 DEG C or 130 DEG C etc.) under solidify, obtain diffusion barrier back coating.
Compared with prior art, the invention has the advantages that：
The present invention at least three kinds monomers of selection are combined as raw material, and the acrylic ester resin solution of specific preparation can directly be made
For host, the hardness of the cured rear coating formed reaches HB-2H, coating shedding rate≤3% when being peeled off using 3M test tapes,
Light transmittance is 89%-92%, and 800g counterweights are pressed in into coating surface, so that under 300mm/min speed dragging, scuffing is not produced,
And after hot and humid processing, coating is without the phenomenon of growing dim that hazes.The diffusion barrier back coating that the present invention is provided is while have suitably
Hardness, higher adhesive force, higher scraping and wiping resistance performance, higher light transmittance and high-temp resisting high-humidity resisting performance.
The monomer composition with specific proportioning selected by the present invention prepares acrylic ester resin solution, can make final obtain
To the properties of diffusion barrier back coating further improve, hardness reaches 2H, and coating shedding rate≤1%, light transmittance reaches
91%-92%, coating surface is pressed in by 1kg counterweights, so that under 300mm/min speed dragging, scuffing is not produced.
Antistatic additive is added, coordinates other compositions, the surface resistivity of the diffusion barrier back coating of the invention provided is provided
109-1010Ω, with good antistatic property.
Embodiment
Technical scheme is further illustrated below by specific embodiment.Those skilled in the art should be bright
, the embodiment be only to aid in understand the present invention, be not construed as to the present invention concrete restriction.
Embodiment 1
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
8 parts of hosts, 1 part of polyisocyanate curing agent and 10 part of first organic solvent；
Host includes acrylic ester resin solution, the raw material components of acrylic ester resin solution count by weight including：
40 parts of monomer, 50 parts of the second organic solvent and 0.5 part of initiator；
Wherein monomer presses quality by methyl methacrylate, cyclohexyl methacrylate and GMA
Than 1:1:1 composition；First organic solvent is toluene；Second organic solvent is ethyl acetate, and initiator is AIBN.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 90% formula ratio and formula ratio is mixed, will obtained
Solution press 1:1 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 300r/min rotating speed and is warming up to 75 DEG C, keeping temperature,
Stirring reaction 60min under 300r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 75 DEG C, 300r/min's
Stirring reaction under rotating speed, with 2h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 75 DEG C, continues stirring reaction 2h under 300r/min rotating speed, acrylic ester resin solution is obtained, by acrylate tree
Lipoprotein solution is directly as host；
(5) host of formula ratio, polyisocyanate curing agent, the first organic solvent are mixed, obtains diffusion barrier back coating liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 120 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 800g counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 2
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
10 parts of hosts, 2 parts of polyisocyanate curing agents and 5 part of first organic solvent；
Host includes acrylic ester resin solution, the raw material components of acrylic ester resin solution count by weight including：
60 parts of monomer, 40 parts of the second organic solvent and 2 parts of initiator；
Wherein monomer presses matter by cyclohexyl methacrylate, GMA and hydroxyethyl methacrylate
Amount compares 1:1:1 composition；First organic solvent is butanone；Second organic solvent is butanone, and initiator is BPO.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 80% formula ratio and formula ratio is mixed, will obtained
Solution press 1:3 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 200r/min rotating speed and is warming up to 90 DEG C, keeping temperature,
Stirring reaction 30min under 200r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 90 DEG C, 200r/min's
Stirring reaction under rotating speed, with 3h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 90 DEG C, continues stirring reaction 5h under 200r/min rotating speed, acrylic ester resin solution is obtained, by acrylate tree
Lipoprotein solution is directly as host；
(5) host of formula ratio, polyisocyanate curing agent, the first organic solvent are mixed, obtains diffusion barrier back coating liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 130 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 800g counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 3
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
9 parts of hosts, 1.5 parts of polyisocyanate curing agents and 8 part of first organic solvent；
Host includes acrylic ester resin solution and accounts for the auxiliary agent of acrylic ester resin solution quality 0.5%, 3% respectively
Hinered phenols light stabilizer, 3% cationic antistatic agent；
The raw material components of acrylic ester resin solution count by weight including：It is 50 parts of monomer, the second of 45 parts organic
Solvent and 0.8 part of initiator；
Wherein monomer is by n-BMA, hydroxyethyl methacrylate and methacrylic acid in mass ratio 1:1:1
Composition；First organic solvent is the combination of toluene and ethyl acetate；Second organic solvent is the combination of butanone and butyl acetate, is drawn
Hair agent is LPO.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 85% formula ratio and formula ratio is mixed, will obtained
Solution press 1:2 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 100r/min rotating speed and is warming up to 80 DEG C, keeping temperature,
Stirring reaction 40min under 100r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 80 DEG C, 100r/min's
Stirring reaction under rotating speed, with 2h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 80 DEG C, continues stirring reaction 3h under 100r/min rotating speed, obtains acrylic ester resin solution；
(5) acrylic ester resin solution is cooled to less than 50 DEG C, adds auxiliary agent, the Hinered phenols light stabilizer of formula ratio
And cationic antistatic agent, obtain host；
(6) host of formula ratio, polyisocyanate curing agent and the first organic solvent are mixed, obtains diffusion barrier back of the body painting
Liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 125 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 800g counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 4
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
8.5 parts of hosts, 1.2 parts of polyisocyanate curing agents, 9 part of first organic solvent and 1 part of PMMA microballon；
Host include acrylic ester resin solution and account for respectively the auxiliary agent of acrylic ester resin solution quality 3%, 1% by
Hindered amine light stabilizer, 1% ionic liquid type antistatic agent；
The raw material components of acrylic ester resin solution count by weight including：It is 45 parts of monomer, the second of 48 parts organic
Solvent and 1.2 parts of initiator；
Wherein monomer is by methyl methacrylate, n-BMA and hydroxyethyl methacrylate in mass ratio 1:
1:1 composition；First organic solvent is the combination of toluene and butanone；Second organic solvent is the combination of toluene and butanone, initiator
For AIBN and LPO combination.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 82% formula ratio and formula ratio is mixed, will obtained
Solution press 1:1.5 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 100r/min rotating speed and is warming up to 85 DEG C, keeping temperature,
Stirring reaction 45min under 100r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 85 DEG C, 100r/min's
Stirring reaction under rotating speed, with 2.5h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 85 DEG C, continues stirring reaction 3.5h under 100r/min rotating speed, obtains acrylic ester resin solution；
(5) acrylic ester resin solution is cooled to less than 50 DEG C, adds auxiliary agent, the hindered amine light stabilizer of formula ratio
With ionic liquid type antistatic agent, host is obtained；
(6) host of formula ratio, polyisocyanate curing agent, the first organic solvent and PMMA microballons are mixed, expanded
Dissipate film back coating liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 126 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 800g counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 5
Difference with embodiment 3 is that the component of diffusion barrier back coating liquid is also micro- including 0.2 part of PMMA according to the mass fraction
Pearl.
Diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by the present embodiment has good scraping and wiping resistance performance, will
800g counterweights are pressed in coating surface, so that under 300mm/min speed dragging, scuffing is not produced.Other performance datas such as table 1 below institute
Show.
Embodiment 6
Difference with embodiment 1 is that monomer is made up of the component of following mass fraction：
Diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by the present embodiment has good scraping and wiping resistance performance, will
1kg counterweights are pressed in coating surface, so that under 300mm/min speed dragging, scuffing is not produced.Other performance datas such as table 1 below institute
Show.
Embodiment 7
Difference with embodiment 3 is that monomer is made up of the component of following mass fraction：
Diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by the present embodiment has good scraping and wiping resistance performance, will
1kg counterweights are pressed in coating surface, so that under 300mm/min speed dragging, scuffing is not produced.Other performance datas such as table 1 below institute
Show.
Embodiment 8
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
9.2 parts of hosts, 1.6 parts of polyisocyanate curing agents, 6 part of first organic solvent and 0.5 part of PMMA microballon；
Host includes acrylic ester resin solution and accounts for the auxiliary agent of acrylic ester resin solution quality 2%, 1.5% respectively
Hindered amine light stabilizer, 2% cationic antistatic agent；
The raw material components of acrylic ester resin solution count by weight including：It is 52 parts of monomer, the second of 42 parts organic
Solvent and 1.8 parts of initiator；
Wherein monomer is made up of the component of following mass fraction：
First organic solvent is the combination of ethyl acetate and butanone；Second organic solvent be toluene, initiator be BPO with
LPO combination.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 87% formula ratio and formula ratio is mixed, will obtained
Solution press 1:2.2 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 250r/min rotating speed and is warming up to 82 DEG C, keeping temperature,
Stirring reaction 55min under 250r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 82 DEG C, 250r/min's
Stirring reaction under rotating speed, with 2.5h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 82 DEG C, continues stirring reaction 4h under 250r/min rotating speed, obtains acrylic ester resin solution；
(5) acrylic ester resin solution is cooled to less than 50 DEG C, adds auxiliary agent, the hindered amine light stabilizer of formula ratio
And cationic antistatic agent, obtain host；
(6) host of formula ratio, polyisocyanate curing agent, the first organic solvent and PMMA microballons are mixed, expanded
Dissipate film back coating liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 130 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 1kg counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 9
A kind of diffusion barrier back coating liquid, according to the mass fraction including following component：
8.6 parts of hosts, 1.8 parts of polyisocyanate curing agents, 7 part of first organic solvent and 0.8 part of PMMA microballon；
Host includes acrylic ester resin solution and accounts for the auxiliary agent of acrylic ester resin solution quality 2.5%, 2% respectively
Hinered phenols light stabilizer, 1.5% ionic liquid type antistatic agent；
The raw material components of acrylic ester resin solution count by weight including：It is 48 parts of monomer, the second of 46 parts organic
Solvent and 1.5 parts of initiator；
Wherein monomer is made up of the component of following mass fraction：
First organic solvent is butanone；Second organic solvent is the combination of toluene and butyl acetate, initiator be AIBN with
BPO combination.
The preparation method for the diffusion barrier back coating liquid that the present embodiment is provided comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 84% formula ratio and formula ratio is mixed, will obtained
Solution press 1:1.8 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, bed material is stirred under 250r/min rotating speed and is warming up to 78 DEG C, keeping temperature,
Stirring reaction 38min under 250r/min rotating speed；
(3) reach after the reaction time in step (2), start that dropping material is added dropwise, keeping temperature is 78 DEG C, 250r/min's
Stirring reaction under rotating speed, with 2.8h by dropping material completion of dropping；
(4) after after dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 78 DEG C, continues stirring reaction 4.5h under 250r/min rotating speed, obtains acrylic ester resin solution；
(5) acrylic ester resin solution is cooled to less than 50 DEG C, adds auxiliary agent, the Hinered phenols light stabilizer of formula ratio
With ionic liquid type antistatic agent, host is obtained；
(6) host of formula ratio, polyisocyanate curing agent, the first organic solvent and PMMA microballons are mixed, expanded
Dissipate film back coating liquid.
The method for preparing diffusion barrier back coating by above-mentioned diffusion barrier back coating liquid is as follows：
Above-mentioned diffusion barrier back coating liquid is applied to the diffusion barrier back side with bar spreader, solidifies at 120 DEG C, is spread
Film back coating.
The coating has good scraping and wiping resistance performance, and 1kg counterweights are pressed in into coating surface, is dragged with 300mm/min speed
Under dynamic, scuffing is not produced.Other performance datas are as shown in table 1 below.
Embodiment 10
Difference with embodiment 9 is that monomer is made up of the component of following mass fraction：
Diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by the present embodiment has good scraping and wiping resistance performance, will
800g counterweights are pressed in coating surface, so that under 300mm/min speed dragging, scuffing is not produced.Other performance datas such as table 1 below institute
Show.
Comparative example 1
Difference with embodiment 1 is that monomer is methyl methacrylate.
The scraping and wiping resistance performance of diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by this comparative example is poor, by 800g
Counterweight is pressed in coating surface, under 300mm/min speed dragging, can produce obvious scuffing.Other performance datas such as table 1 below
It is shown.
Comparative example 2
Difference with embodiment 3 is that monomer is the combination of hydroxyethyl methacrylate and methacrylic acid.
The scraping and wiping resistance performance of diffusion barrier back coating prepared by the diffusion barrier back coating liquid provided by this comparative example is poor, by 800g
Counterweight is pressed in coating surface, under 300mm/min speed dragging, can produce obvious scuffing.Other performance datas such as table 1 below
It is shown.
It should be noted that the auxiliary agent in above-described embodiment and comparative example refers to the mixture of dispersant and levelling agent, its
Middle dispersant is the electroneutral salt of organic acid and organic amine, and levelling agent is polyethers modified organic silicon solution.
The performance test methods for the diffusion barrier back coating that above-described embodiment 1-10 and comparative example 1-2 is provided are as follows：
Hardness：Determined using pencil hardometer；
Adhesive force：10 × 10 grids are marked in coating surface using cross-cut tester, 3M standard testing adhesive tapes are attached at grid
On, adhesive tape of tearing has seen whether that grid comes off, and calculates coating shedding rate；
High-temp resisting high-humidity resisting performance：Coating is handled in 65 DEG C, the hot and humid case of 90% humidity and taken out after 120h, observation
Whether coating hazes phenomenon of growing dim.
The performance data for the diffusion barrier back coating that above-described embodiment 1-10 and comparative example 1-2 is provided is as shown in table 1 below：
Table 1
From the performance data of table 1, because comparative example 1 and comparative example 2 only with one or two kinds of monomers prepare propylene
Acid ester resin solution, therefore hardness, adhesive force, wearability, the high-temp resisting high-humidity resisting performance of the two diffusion barrier back coating provided are equal
It is poor, do not reach the performance requirement of diffusion barrier back coating.
The performance data of comparative example 1 and embodiment 6, embodiment 3 and embodiment 7, embodiment 9 and embodiment 10 can
Know, acrylic ester resin solution is prepared by monomer composition of the present invention selection with specific proportioning, the expansion finally given can be made
Hardness, adhesive force, scraping and wiping resistance performance and the light transmittance for dissipating film back coating are further improved.
Applicant states, the foregoing is only the embodiment of the present invention, but protection scope of the present invention not office
It is limited to this, person of ordinary skill in the field is it will be clearly understood that any belong to those skilled in the art and taken off in the present invention
In the technical scope of dew, the change or replacement that can be readily occurred in, within the scope of all falling within protection scope of the present invention and being open.
Claims (10)
1. a kind of diffusion barrier back coating liquid, it is characterised in that the diffusion barrier back coating liquid includes following component according to the mass fraction：
8-10 parts of hosts, 1-2 parts of polyisocyanate curing agents and 5-10 the first organic solvents of part；
The host includes acrylic ester resin solution, and the raw material components of the acrylic ester resin solution count bag by weight
Include：40-60 parts of monomer, 40-50 parts of the second organic solvent and 0.5-2 parts of initiator；
The monomer is selected from methyl methacrylate, cyclohexyl methacrylate, GMA, metering system
At least three kinds of combination in sour N-butyl, hydroxyethyl methacrylate or methacrylic acid.
2. diffusion barrier back coating liquid according to claim 1, it is characterised in that acrylic acid in the acrylic ester resin solution
The weight average molecular weight of ester resin is 8000-50000, and glass transition temperature is 50-90 DEG C, and hydroxyl value is 50-200mgKOH/g, acid
It is worth for 2-20mgKOH/g.
3. diffusion barrier back coating liquid according to claim 1 or 2, it is characterised in that the monomer is by following mass fraction
Component is constituted：
4. the diffusion barrier back coating liquid according to claim any one of 1-3, it is characterised in that first organic solvent and institute
State one kind that the second organic solvent is each independently selected from toluene, ethyl acetate, butanone or butyl acetate or at least two
Combination；
Preferably, the initiator is a kind of in azodiisobutyronitrile, dibenzoyl peroxide or lipid peroxide or at least
Two kinds of combination.
5. the diffusion barrier back coating liquid according to claim any one of 1-4, it is characterised in that the host also includes accounting for described
Acrylic ester resin solution quality 0.5-3% auxiliary agent, the auxiliary agent is the combination of dispersant and levelling agent；
Preferably, the dispersant is the electroneutral salt of organic acid and organic amine；
Preferably, the levelling agent is polyethers modified organic silicon solution.
6. the diffusion barrier back coating liquid according to claim any one of 1-5, it is characterised in that the host also includes accounting for described
Acrylic ester resin solution quality 1-3% light stabilizer；
Preferably, the light stabilizer is hindered amine light stabilizer and/or Hinered phenols light stabilizer.
7. the diffusion barrier back coating liquid according to claim any one of 1-6, it is characterised in that the host also includes accounting for described
Acrylic ester resin solution quality 1-3% antistatic additive；
Preferably, the antistatic additive resists quiet selected from cationic antistatic agent, anionic antistatic agent or ion liquid type
One kind or at least two combination in electric agent；
Preferably, the diffusion barrier back coating liquid also includes 0.2-1 parts of PMMA microballons according to the mass fraction.
8. the preparation method of the diffusion barrier back coating liquid according to claim any one of 1-7, it is characterised in that the preparation side
Method comprises the following steps：
(1) the second organic solvent of the monomer of formula ratio, the initiator of 80-90% formula ratios and formula ratio is mixed, will obtained
Solution press 1:1-3 mass ratio is divided into bed material and dropping material；
(2) under inert gas shielding, the bed material is warming up to 75-90 DEG C, keeping temperature reacts 30-60min；
(3) reach after the reaction time in step (2), start that the dropping material is added dropwise, keeping temperature is 75-90 DEG C, uses 2-3h
By the dropping material completion of dropping；
(4) after after the dropping material completion of dropping, remaining initiator is added in the reaction system that step (3) is obtained, kept
Temperature is 75-90 DEG C, continues to react 2-5h, obtains the acrylic ester resin solution；
(5) will the acrylic ester resin solution cool down after, add optionally auxiliary agent, optionally light stabilizer and optionally resist it is quiet
Electric agent, obtains the host；
(6) by the host of formula ratio, polyisocyanate curing agent, the first organic solvent and optionally PMMA microballons mixing,
Obtain the diffusion barrier back coating liquid.
9. preparation method according to claim 8, it is characterised in that being cooled to described in step (5) be cooled to 50 DEG C with
Under；
Preferably, the reaction described in step (2)-(4) is carried out under agitation；
Preferably, the rotating speed of the stirring is 100-300r/min.
10. the application method of the diffusion barrier back coating liquid according to claim any one of 1-7, it is characterised in that described to use
Method is：The diffusion barrier back coating liquid is applied to the diffusion barrier back side, solidifies at 120-130 DEG C, obtains diffusion barrier back coating.
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| CN110655839A (en) * | 2019-11-14 | 2020-01-07 | 上海绘兰材料科技有限公司 | Preparation method of diffusion film resin solution and diffusion film resin solution prepared by same |
| CN110684397A (en) * | 2019-10-31 | 2020-01-14 | Oppo广东移动通信有限公司 | Light diffusion ink, preparation method thereof, cover plate and electronic equipment |
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| CN102260365A (en) * | 2011-02-17 | 2011-11-30 | 湖南晟通科技集团有限公司 | Acrylic ester resin solution and preparation method thereof |
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| US20050287354A1 (en) * | 2004-06-24 | 2005-12-29 | Jennings Robert E | Coated articles and multi-layer coatings |
| CN102260365A (en) * | 2011-02-17 | 2011-11-30 | 湖南晟通科技集团有限公司 | Acrylic ester resin solution and preparation method thereof |
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| CN110684397A (en) * | 2019-10-31 | 2020-01-14 | Oppo广东移动通信有限公司 | Light diffusion ink, preparation method thereof, cover plate and electronic equipment |
| CN110684397B (en) * | 2019-10-31 | 2023-01-10 | Oppo广东移动通信有限公司 | Light diffusion ink, preparation method thereof, cover plate and electronic equipment |
| CN110655839A (en) * | 2019-11-14 | 2020-01-07 | 上海绘兰材料科技有限公司 | Preparation method of diffusion film resin solution and diffusion film resin solution prepared by same |
| CN110655839B (en) * | 2019-11-14 | 2021-04-20 | 上海绘兰材料科技有限公司 | Preparation method of diffusion film resin solution and diffusion film resin solution prepared by same |
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| CN106990457B (en) | 2019-04-26 |
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Denomination of invention: A diffusion film back coating liquid and its preparation method and usage method Effective date of registration: 20231213 Granted publication date: 20190426 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HUILAN MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2023310000850 |