CN116376427A - Scratch-resistant multilayer composite matte film and preparation process thereof - Google Patents
Scratch-resistant multilayer composite matte film and preparation process thereof Download PDFInfo
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- CN116376427A CN116376427A CN202310345036.2A CN202310345036A CN116376427A CN 116376427 A CN116376427 A CN 116376427A CN 202310345036 A CN202310345036 A CN 202310345036A CN 116376427 A CN116376427 A CN 116376427A
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- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 23
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- 239000004814 polyurethane Substances 0.000 claims abstract description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920003009 polyurethane dispersion Polymers 0.000 claims abstract description 13
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 12
- FSDNTQSJGHSJBG-UHFFFAOYSA-N piperidine-4-carbonitrile Chemical compound N#CC1CCNCC1 FSDNTQSJGHSJBG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002562 thickening agent Substances 0.000 claims abstract description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims abstract description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003086 colorant Substances 0.000 claims abstract description 5
- 239000000080 wetting agent Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- -1 acrylic ester Chemical class 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 150000002978 peroxides Chemical class 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000012986 chain transfer agent Substances 0.000 claims description 4
- 239000006184 cosolvent Substances 0.000 claims description 4
- 125000005442 diisocyanate group Chemical group 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000000967 suction filtration Methods 0.000 claims description 4
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 150000002009 diols Chemical class 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910021485 fumed silica Inorganic materials 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 150000002513 isocyanates Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000003658 microfiber Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 150000003077 polyols Chemical class 0.000 claims description 2
- 150000003254 radicals Chemical class 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 235000021419 vinegar Nutrition 0.000 claims description 2
- 239000000052 vinegar Substances 0.000 claims description 2
- 235000019441 ethanol Nutrition 0.000 claims 1
- 230000000887 hydrating effect Effects 0.000 claims 1
- 239000003085 diluting agent Substances 0.000 abstract description 4
- 239000006224 matting agent Substances 0.000 abstract description 3
- 239000013530 defoamer Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 14
- 239000003973 paint Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- 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
Abstract
The invention discloses a scratch-resistant multilayer composite matte film and a preparation process thereof, and relates to the technical field of matte films, wherein the scratch-resistant multilayer composite matte film comprises the following components in parts by mass; 20-40 parts of an aqueous polyurethane dispersion; 30-50 parts of aqueous polyurethane acrylic hybrid; 5-15 parts of dipropylene glycol diacrylate; 2-6 parts of KH-550 modified nano-silica; 0.1-1 part of defoamer; 5-7 parts of matting agent; 0.1-1 part of thickener; 1-5 parts of thixotropic agent; 0-5 parts of a colorant; 0.1-1 part of leveling wetting agent. The invention has reasonable structure, the mechanical property of the matte film is improved by matching the aqueous polyurethane dispersoid and the aqueous polyurethane acrylic acid hybrid as prepolymer monomers, then the dipropylene glycol diacrylate as active diluent and the dipropylene glycol diacrylate as active diluent, and finally the silica modified by the silane coupling agent KH-550 is added to optimize the formula, and meanwhile, the scratch resistance of the matte film is improved, so that the service life of the matte film is longer.
Description
Technical Field
The invention relates to the technical field of matte films, in particular to a scratch-resistant multilayer composite matte film and a preparation process thereof.
Background
The traditional coating industry, in particular to oily coating, is a large household with carbon emission and energy consumption, and the coating enterprise actively develops towards the green directions of 'water-based', 'no solvation', 'photo-curing', and the like, and becomes the necessary trend of the industry. The vacuum coating can endow the product with metallized luster, the visual effect of the matt paint is soft, the touch feeling is good, and the decorative effect and the added value of the product can be further improved by combining the matt paint with the vacuum coating technology. However, most of the current vacuum coating matt paint is alcohol-soluble and thermoplastic, in order to pursue production efficiency and cost reduction, the solid content of the paint is generally less than 20%, a large amount of organic solvents are used in the preparation process, and a large amount of VO is discharged in the use process. On the other hand, the problems of insufficient hardness, quick-drying property, scratch resistance and the like of the matte paint are also a great problem in industry development, and therefore, the application provides a scratch-resistant multilayer composite matte film and a preparation process for meeting the requirements.
Disclosure of Invention
The purpose of the application is to provide a scratch-resistant multilayer composite matte film and a preparation process, so as to solve the problems in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: a scratch-resistant multilayer composite matte film comprises the following components in parts by mass;
wherein the preparation steps of the KH-550 modified nano-silica are as follows: the preparation method of the KH-550 modified nano-silica comprises the steps of adding nano-silica into toluene, performing ultrasonic dispersion at normal temperature to obtain a uniform suspension, adding a silane coupling agent KH-550 with the mass fraction of 2-6% relative to the silica into the suspension, refluxing for 2-3 hours at 110-120 ℃, performing suction filtration, washing with absolute ethyl alcohol, and drying to obtain the modified nano-silica.
Preferably, the aqueous polyurethane dispersion is one or a mixture of a plurality of polycarbonate polyurethane dispersions, fatty acid polyurethane dispersions and polyether polyurethane dispersions.
Preferably, the aqueous polyurethane acrylic hybrid is an aqueous dispersion formed by solution free radical graft copolymerization of hydroxyl polyurethane with an alcohol-soluble and reactive grafting point and an acrylic ester monomer, neutralization and hydration.
Preferably, the wax emulsion is an aqueous dispersion of fluorine modified polyethylene wax micronization.
Preferably, the delustrant refers to a composition of fumed silica and titanium dioxide in a mass ratio of 1:1 to 3:1.
Preferably, the preparation method of the aqueous polyurethane acrylic hybrid comprises the following steps:
(1) Adding the polyacetyl glycol, the polycarbonatepolyol, the poly-internal vinegar polyol, the allyl glyceryl ether, the micromolecular diol, the polymerization inhibitor and the catalyst into a reaction kettle, dropwise adding cool diisocyanate and sulfonate modified cool isocyanate, heating to 90 ℃, and stopping the reaction when the error is not more than 3 ℃ and the content of-NcO in the system is 0, thus obtaining the light-base polyurethane;
(2) Adding a cosolvent into the base type polyurethane obtained in the step (1), stirring and dissolving, heating to about 110 ℃, adding a mixed solution of an acrylic acid cool monomer, a 70-80% peroxide initiator and a chain transfer agent, keeping the temperature, adding the rest peroxide initiator, continuing the reaction, waiting for the temperature of the material to be lower than 65 ℃, adding a solvent viscosity regulating neutralizing agent for neutralization, and finally adding water to obtain the aqueous polyurethane cool acrylic acid hybrid.
Preferably, the thixotropic agent is an Exilva microfiber material.
A scratch-resistant multilayer composite matte film and a preparation process thereof comprise the following steps:
firstly, raw material treatment, namely dispersing a thixotropic agent into water to prepare thixotropic agent slurry with the mass concentration of 15-25%, and uniformly dispersing nano silicon dioxide;
mixing and molding materials, stirring the aqueous polyurethane dispersion and the aqueous polyurethane-acrylic acid hybrid at the speed of 450-550 r/min, preheating equipment at the temperature of 35 ℃ in a stirring device, adding a defoaming agent, a leveling wetting agent, a dispersing agent and a matting agent, stirring at the speed of 800-1000 r/min for 20-40 min, uniformly dispersing, adding a thickening agent, KH-550 modified nano-silica, dipropylene glycol diacrylate, thixotropic agent slurry and a coloring agent, continuously stirring for 10-30 min, adding a thickening agent, and filtering to obtain the high-hardness scratch-resistant matte film.
In summary, the invention has the technical effects and advantages that:
the invention has reasonable structure, the mechanical property of the matte film is improved by matching the aqueous polyurethane dispersoid and the aqueous polyurethane acrylic acid hybrid as prepolymer monomers, then the dipropylene glycol diacrylate as active diluent and the dipropylene glycol diacrylate as active diluent, and finally the silica modified by the silane coupling agent KH-550 is added to optimize the formula, and meanwhile, the scratch resistance of the matte film is improved, so that the service life of the matte film is longer.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the preparation of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides a scratch-resistant multilayer composite matte film and a preparation process thereof, wherein the scratch-resistant multilayer composite matte film comprises the following steps: step one, raw material treatment; step two, mixing and forming materials;
adding nano silicon dioxide into toluene, performing ultrasonic dispersion at normal temperature to obtain uniform suspension, adding a silane coupling agent KH-550 with the mass fraction of 2-6% relative to the silicon dioxide into the suspension, refluxing the mixture for 2-3 h at 110-120 ℃, performing suction filtration, washing and drying the mixture by using absolute ethyl alcohol to obtain modified nano silicon dioxide, adding polyvinyl acetate glycol, polycarbonate glycol, poly (vinyl acetate polyol), allyl glycerol ether, micromolecular glycol, polymerization inhibitor and catalyst into a reaction kettle, dropwise adding diisocyanate and sulfonate modified isocyanic acid, heating the mixture to 90 ℃, keeping the temperature until the error is not more than 3 ℃, stopping the reaction when the content of-NcO in the system is 0, adding a cosolvent into the obtained basic polyurethane, stirring and dissolving the mixture, heating the mixture to about 110 ℃, adding an acrylic monomer, a 70-80% peroxide initiator and a chain transfer agent, performing heat preservation, adding the rest peroxide initiator, continuously reacting, waiting for the material to be cooled to below 65 ℃, adding a solvent for regulating and neutralizing agent, and finally adding the aqueous solution into the aqueous solution of the aqueous solution until the aqueous solution of the silicon dioxide is uniform, and preparing thixotropic aqueous solution of the silicon dioxide;
mixing and molding the materials, stirring the aqueous polyurethane dispersion and the aqueous polyurethane-acrylic acid hybrid at the speed of 450-550 r/min, preheating the equipment at the temperature of 35 ℃ in a stirring device, adding the defoaming agent, the leveling wetting agent, the dispersing agent and the flatting agent, stirring at the speed of 800-1000 r/min for 20-40 min, uniformly dispersing, adding the thickening agent, KH-550 modified nano-silica, dipropylene glycol diacrylate, thixotropic agent slurry and the coloring agent, continuously stirring for 10-30 min, adding the thickening agent, and filtering to obtain the high-hardness scratch-resistant matte film.
Example 2
The embodiment provides a scratch-resistant multilayer composite matte film and a preparation process thereof, wherein the scratch-resistant multilayer composite matte film comprises the following steps: step one, raw material treatment; step two, mixing and forming materials;
changing a silane coupling agent KH-550 into KH-560, adding nano silicon dioxide into toluene, performing ultrasonic dispersion at normal temperature to obtain a uniform suspension, adding the silane coupling agent KH-560 with the mass fraction of 2-6% of the relative silicon dioxide into the suspension, refluxing for 1.5-3 h at 100-120 ℃, performing suction filtration, washing and drying with absolute ethyl alcohol to obtain modified nano silicon dioxide, adding a polyacetyl glycol, a polycarbonatepolycol, a poly (hexamethylene glycol), allyl glycerol ether, micromolecular diol, a polymerization inhibitor and a catalyst into a reaction kettle, dropwise adding cool diisocyanate and sulfonate modified isocyanic acid, heating to 95 ℃, stopping the reaction when the content of-NcO in the system is 0, adding a cosolvent into the obtained base type polyurethane, stirring and dissolving the mixture, heating to about 110 ℃, adding an acrylic acid cool monomer, 70-80% peroxide initiator and a chain transfer agent, performing heat preservation, adding residual peroxide, continuing to react, waiting for the reaction, adding the thixotropic agent into the aqueous solution and the aqueous solution until the aqueous solution is mixed solution, and performing uniform dispersion, and dissolving the aqueous solution until the aqueous solution is prepared into the aqueous solution with the aqueous solution, and the aqueous solution is 25% of the aqueous solution;
mixing and molding materials, stirring the aqueous polyurethane dispersion and the aqueous polyurethane-acrylic acid hybrid at the speed of 470-560 r/min, preheating equipment at the temperature of 40 ℃, adding a defoaming agent, a leveling wetting agent, a dispersing agent and a matting agent, stirring at the speed of 750-950 r/min for 30-40 min, uniformly dispersing, adding a thickening agent, KH-550 modified nano-silica, dipropylene glycol diacrylate, thixotropic agent slurry and a coloring agent, continuously stirring for 10-30 min, adding a thickening agent, and filtering to obtain the high-hardness scratch-resistant matte film.
Example 3
The embodiment provides a scratch-resistant multilayer composite matte film and a preparation process thereof, wherein the scratch-resistant multilayer composite matte film comprises the following steps: step one, raw material treatment; step two, mixing and forming materials;
the preparation method is the same as in example 1 except that the silane coupling agent KH-550 is replaced by KH-560, KH-550 modified nano-silica is replaced by KH-560 modified nano-silica, and the scratch-resistant matte film is prepared by the same preparation method as in example 1.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. A scratch-resistant multilayer composite matte film is characterized in that: comprises the following components in parts by mass;
wherein the preparation steps of the KH-550 modified nano-silica are as follows: the preparation method of the KH-550 modified nano-silica comprises the steps of adding nano-silica into toluene, performing ultrasonic dispersion at normal temperature to obtain a uniform suspension, adding a silane coupling agent KH-550 with the mass fraction of 2-6% relative to the silica into the suspension, refluxing for 2-3 hours at 110-120 ℃, performing suction filtration, washing with absolute ethyl alcohol, and drying to obtain the modified nano-silica.
2. The scratch resistant multilayer composite matte film of claim 1 wherein: the aqueous polyurethane dispersion is one or a mixture of more of polycarbonate polyurethane dispersion, fatty acid polyurethane dispersion and polyether polyurethane dispersion.
3. The scratch resistant multilayer composite matte film of claim 1 wherein: the aqueous polyurethane acrylic hybrid is an aqueous dispersion formed by performing solution free radical graft copolymerization on hydroxyl polyurethane with alcohol solubility and reactive grafting points and an acrylic ester monomer, and then neutralizing and hydrating the aqueous polyurethane acrylic hybrid.
4. The scratch resistant multilayer composite matte film of claim 1 wherein: the wax emulsion is fluorine modified polyethylene wax micronized water dispersion.
5. The scratch resistant multilayer composite matte film of claim 1 wherein: the delustrant is a composition of fumed silica and titanium dioxide, and the mass ratio of the delustrant to the titanium dioxide is 1:1-3:1.
6. The scratch resistant multilayer composite matte film of claim 1 wherein: the preparation method of the aqueous polyurethane acrylic hybrid comprises the following steps:
(1) Adding the polyacetyl glycol, the polycarbonatepolyol, the poly-internal vinegar polyol, the allyl glyceryl ether, the micromolecular diol, the polymerization inhibitor and the catalyst into a reaction kettle, dropwise adding cool diisocyanate and sulfonate modified cool isocyanate, heating to 90 ℃, and stopping the reaction when the error is not more than 3 ℃ and the content of-NcO in the system is 0, thus obtaining the light-base polyurethane;
(2) Adding a cosolvent into the base type polyurethane obtained in the step (1), stirring and dissolving, heating to about 110 ℃, adding a mixed solution of an acrylic acid cool monomer, a 70-80% peroxide initiator and a chain transfer agent, keeping the temperature, adding the rest peroxide initiator, continuing the reaction, waiting for the temperature of the material to be lower than 65 ℃, adding a solvent viscosity regulating neutralizing agent for neutralization, and finally adding water to obtain the aqueous polyurethane cool acrylic acid hybrid.
7. The scratch resistant multilayer composite matte film of claim 1 wherein: the thixotropic agent is an Exilva microfiber material.
8. The scratch-resistant multilayer composite matte film and the preparation process thereof according to claims 1 and 7 are characterized in that: the method comprises the following steps:
firstly, raw material treatment, namely dispersing a thixotropic agent into water to prepare thixotropic agent slurry with the mass concentration of 15-25%, and uniformly dispersing nano silicon dioxide;
mixing and molding the materials, stirring the aqueous polyurethane dispersion and the aqueous polyurethane-acrylic acid hybrid at the speed of 450-550 r/min, preheating the equipment at the temperature of 35 ℃ in a stirring device, adding the defoaming agent, the leveling wetting agent, the dispersing agent and the flatting agent, stirring at the speed of 800-1000 r/min for 20-40 min, uniformly dispersing, adding the thickening agent, KH-550 modified nano-silica, dipropylene glycol diacrylate, thixotropic agent slurry and the coloring agent, continuously stirring for 10-30 min, adding the thickening agent, and filtering to obtain the high-hardness scratch-resistant matte film.
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| CN202310345036.2A CN116376427A (en) | 2023-04-03 | 2023-04-03 | Scratch-resistant multilayer composite matte film and preparation process thereof |
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| CN202310345036.2A CN116376427A (en) | 2023-04-03 | 2023-04-03 | Scratch-resistant multilayer composite matte film and preparation process thereof |
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| CN (1) | CN116376427A (en) |
Citations (6)
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| CN107286814A (en) * | 2017-06-26 | 2017-10-24 | 江苏兰陵高分子材料有限公司 | The cold-applied zinc coating of organic inorganic hybridization a kind of is resin dedicated and its production and use |
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| CN109852223A (en) * | 2019-01-22 | 2019-06-07 | 兰州科天水性高分子材料有限公司 | It is a kind of for coating woodenware surface to realize the aqueous formulation of nature haptic effect |
| CN111040600A (en) * | 2019-12-23 | 2020-04-21 | 东莞市涂芭新材料有限公司 | Water-based scratch-resistant full-matte solid-color wood coating and preparation method thereof |
| CN113897105A (en) * | 2021-11-01 | 2022-01-07 | 华高永昌(甘肃)新材料科技有限公司 | Single-component matte water-based varnish for graffiti film and preparation method thereof |
| CN113913077A (en) * | 2021-08-23 | 2022-01-11 | 广东深展实业有限公司 | Scratch-resistant water-based vacuum coating film-plating matte paint and preparation method thereof |
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| CN107286814A (en) * | 2017-06-26 | 2017-10-24 | 江苏兰陵高分子材料有限公司 | The cold-applied zinc coating of organic inorganic hybridization a kind of is resin dedicated and its production and use |
| CN108342181A (en) * | 2018-02-28 | 2018-07-31 | 佛山市三水日邦化工有限公司 | A kind of single-component water-based polyurethane adhesive of water resistant, high temperature resistant and preparation method thereof |
| CN109852223A (en) * | 2019-01-22 | 2019-06-07 | 兰州科天水性高分子材料有限公司 | It is a kind of for coating woodenware surface to realize the aqueous formulation of nature haptic effect |
| CN111040600A (en) * | 2019-12-23 | 2020-04-21 | 东莞市涂芭新材料有限公司 | Water-based scratch-resistant full-matte solid-color wood coating and preparation method thereof |
| CN113913077A (en) * | 2021-08-23 | 2022-01-11 | 广东深展实业有限公司 | Scratch-resistant water-based vacuum coating film-plating matte paint and preparation method thereof |
| CN113897105A (en) * | 2021-11-01 | 2022-01-07 | 华高永昌(甘肃)新材料科技有限公司 | Single-component matte water-based varnish for graffiti film and preparation method thereof |
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