CN116285648A - High-wear-resistance water-based matte UV varnish and preparation method thereof - Google Patents
High-wear-resistance water-based matte UV varnish and preparation method thereof Download PDFInfo
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- CN116285648A CN116285648A CN202310242069.4A CN202310242069A CN116285648A CN 116285648 A CN116285648 A CN 116285648A CN 202310242069 A CN202310242069 A CN 202310242069A CN 116285648 A CN116285648 A CN 116285648A
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- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
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- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000000080 wetting agent Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 35
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- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
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- IKNAJTLCCWPIQD-UHFFFAOYSA-K cerium(3+);lanthanum(3+);neodymium(3+);oxygen(2-);phosphate Chemical compound [O-2].[La+3].[Ce+3].[Nd+3].[O-]P([O-])([O-])=O IKNAJTLCCWPIQD-UHFFFAOYSA-K 0.000 description 1
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/42—Gloss-reducing agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a high wear-resistant water-based matte UV varnish and a preparation method thereof, wherein the high wear-resistant water-based matte UV varnish comprises a main agent, and the main agent comprises the following components in parts by weight: 50-70 parts of aqueous polyurethane acrylate emulsion, 5-10 parts of deionized water, 1-5 parts of aqueous cosolvent, 1-2 parts of photoinitiator, 0.5-1 part of aqueous wetting agent, 0.5-1 part of aqueous anti-settling agent, 3-5 parts of aqueous polyethylene wax slurry, 20-30 parts of ceramic powder, 0-2 parts of extinction powder and 0.5-1 part of aqueous thickener. The diluent consists of the following components in parts by weight: 100 parts of deionized water. The invention aims to develop the water-based matte UV varnish with high wear resistance and excellent scratch resistance, which is applied to a keyboard, and can pass the test requirements of 200g/25 ten thousand times of wool-resistant felt tests and gloss change within +/-2 degrees under the condition of not affecting basic performance.
Description
Technical Field
The invention relates to a coating, in particular to a coating for a keyboard, and specifically relates to a high-wear-resistance water-based matte UV varnish and a preparation method thereof.
Background
The main film forming material in the water-based matte UV varnish is water-based photo-curing resin, wherein the water-based photo-curing resin refers to photo-curing resin which can be dissolved in water or dispersed by water, and the molecule contains a certain amount of strong hydrophilic groups, such as carboxyl, hydroxyl, amino, ether, amido and the like, and unsaturated groups, such as acryloyl, methacryloyl or allyl. The aqueous photocurable trees can be classified into emulsion type, water dispersion type and water-soluble type. Mainly comprises three main categories: aqueous urethane acrylates, aqueous epoxy acrylates and aqueous polyester acrylates. The water-based matte UV varnish applied to the keyboard mainly adopts water-based polyurethane acrylate, has excellent flexibility, wear resistance and chemical resistance, and has high impact resistance and tensile strength.
Photoinitiators are a key component in aqueous matt UV varnishes. Generally, the photoinitiator is required to have high photocuring activity, high extinction coefficient, nontoxic photocleavable products, stable storage, compatibility with other raw materials, particularly main resin, no migration trend and the like. The photoinitiator mainly comprises a free radical photoinitiator and a cationic photoinitiator. The cationic photoinitiator is rarely used in 3C coating, and the free radical photoinitiator can be roughly classified into carbonyl compounds, dyes, metal-organic compounds, halogen-containing compounds, azo compounds and peroxy compounds according to structural characteristics. The free radical photoinitiator can be divided into a cleavage type free radical photoinitiator and a hydrogen abstraction type free radical photoinitiator according to the different action mechanisms of the photoinitiator for generating active free radicals. The photoinitiator in the water-based matte UV varnish is mainly selected from self-cracking free radical photoinitiator, and alpha-aminoalkyl benzophenone is matched with acyl phosphine oxide; alpha-hydroxyalkyl benzophenone photoinitiator is the most successful type of photoinitiator in current application and development, wherein Irgacure184 absorbs mainly ultraviolet light with wavelengths of 246nm,280nm and 333nm, and provides excellent surface layer curing capability. The photo-curing varnish has excellent thermal stability and good yellowing resistance, is a main initiator of photo-curing varnish with high yellowing resistance, and can be matched with other photo-initiators to be used in photo-curing color paint. The acylphosphine oxide photoinitiator is a photoinitiator with higher initiation activity and better comprehensive performance. The TPO is a high-efficiency general ultraviolet initiator, has high activity, no yellowing, excellent thermal stability and good storage stability, and is suitable for photocuring of thick coatings.
The diluent used in the aqueous matte UV varnish is mainly water, which does not participate in the photo-curing reaction and must be removed prior to or during photo-curing. Therefore, the initiator has to be selected to have low volatility, good compatibility with the aqueous photocurable resin, high photoactivity in aqueous medium, high initiation efficiency, safety and no toxicity. Photoinitiators used in waterborne photocurable coatings can be categorized into two types, dispersion and water-soluble. The dispersing photoinitiator is oil-soluble and can be dispersed into the water-based photocuring system only by using an emulsifier and a small amount of monomer. They may have compatibility problems affecting film forming properties and initiation efficiency. The water-soluble photoinitiator overcomes the problem, and is prepared by introducing anionic and cationic groups or hydrophilic nonionic groups into a common oil-soluble photoinitiator structure, but the initiation efficiency is only 70-80% of that of the traditional dispersion type, and the price is 15-20% higher than that of the traditional dispersion type. The water-based matte UV varnish can completely use a dispersed photoinitiator through formula and process adjustment, so that sufficient initiation efficiency and economic benefit are obtained.
The current Keyboard market has a popular low-gloss appearance, the gloss of the Keyboard is basically below 10 ℃, and the gloss of the Keyboard is generally far higher than that of the Keyboard made of the pure water-based light-cured resin. The traditional practice is to add a large amount of matting agent to reduce gloss, and the component is basically porous SiO 2 . The extinction principle is that the light is suspended on the surface of a coating film when the film is wet, and the surface is uneven after the film is dried, so that the diffuse scattering of the light is increased and the reflection is reduced. But the surface of the coating has a loose and porous structure, has low mechanical strength and is easily damaged by external force, thereby causing the difference of the gloss of the surface of the coating.
Therefore, there is a need to provide a highly abrasion-resistant aqueous matte UV varnish and a method for preparing the same to solve the above problems.
Disclosure of Invention
The invention aims to provide a high wear-resistant water-based matte UV varnish and a preparation method thereof.
The invention realizes the aim through the following technical scheme:
the technical scheme is as follows:
a high wear-resistant water-based matte UV varnish comprises a main agent;
the main agent consists of the following components in parts by weight:
further, the main agent consists of the following components in parts by weight:
further, the aqueous polyurethane acrylate emulsion is UAW-74017W of Guangzhou nine dimensions and UCECOAT 7200 of Zhan Xin; the cosolvent is selected from ethylene glycol butyl ether, diethylene glycol butyl ether and isopropanol.
Furthermore, the photoinitiator is TPO or Irgacure184; the aqueous wetting agent is TEGO-4100, 104E.
Further, the aqueous anti-settling agent is AQH-633E of the monazite.
Further, the aqueous polyethylene wax slurry is selected from A-348 of Fu of Japan.
Furthermore, ceramic alumina microspheres of NANOE in France are selected as ceramic powder.
Furthermore, the extinction powder is E-1011 of Tosoh Japan.
Further, the thickener is Borchi-0620 of OMG in the United states.
The second technical scheme is as follows:
a preparation method of high wear-resistant water-based matte UV varnish comprises the following steps:
1) Preparation of the thickener:
1-1) preparing raw materials according to a formula;
1-2) adding the formula amount of aqueous cosolvent into a dispersing container, slowly adding the formula amount of thickener under stirring, and stirring and dispersing to a uniform state;
1-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
2) Preparation of a photoinitiator:
2-1) preparing raw materials according to a formula;
2-2) adding the cosolvent with the formula amount into a dispersing container, slowly adding the photoinitiator with the formula amount under stirring, and stirring and dispersing to a uniform state;
2-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
3) Mixing:
3-1) adding the formula amount of the aqueous polyurethane acrylate emulsion into a paint mixing container;
3-2) slowly adding the deionized water with the formula amount under stirring;
3-3) slowly adding the photoinitiator prepared in the step 2) under stirring;
3-4) slowly adding the wetting agent with the formula amount under stirring;
3-5) slowly adding the formula amount of the anti-settling agent under stirring;
3-6) slowly adding the formula amount of the aqueous polyethylene wax slurry under stirring;
3-7) slowly adding ceramic powder and extinction powder with the formula amount under stirring;
3-8) slowly adding the thickener prepared in the step 3) under stirring, and adjusting the viscosity to 70-80Ku;
4) Grinding:
4-1) grinding the uniformly mixed semi-finished product prepared according to the step 3) by a grinder, controlling the rotating speed of the grinder to be about 2000r/min, and grinding for 4 times until the fineness is less than or equal to 15 mu m;
4-2) filtering with a 300-mesh filter screen to obtain the main agent component of the high wear-resistant water-based matte UV varnish.
Preferably, in the step 1), the thickener with the formula amount is added and stirred for 5-10min at 300-500 r/min; in the step 2), adding the photoinitiator with the formula amount, and stirring for 5-10min at 300-500 r/min; in the step 3), the materials with the formula amount are gradually added according to the sequence, and the thickener with the formula amount is stirred for 10-20min at 800-1200 r/min.
Compared with the prior art, the invention has the beneficial effects that:
1) Two high-functionality fat-type aqueous polyurethane acrylate emulsions are mixed and spliced to respectively provide hardness and flexibility, so that the super-hard coating with special flexibility is prepared to meet the requirements of hardness and adhesive force;
2) The high-functional aqueous UV resin has excellent wear resistance, and can basically meet the requirement of physical property test of a Keyboard;
3) The high-strength ceramic microspheres are replaced by most of traditional extinction powder, and are high-strength, inert, hard and fine spherical particles, compared with fillers with other shapes, the ceramic microspheres have the smallest surface area volume ratio, the oil absorption is low, the resin consumption can be reduced, the filler consumption is increased, the microspheres with smaller volumes are filled in gaps among the microspheres with larger volumes, the solid content is increased, the VOC is reduced, the cost is reduced, the ceramic microspheres can roll like steel balls in bearings unlike other fillers with irregular shapes, and the viscosity is reduced; and the surface of the coating is tough and wear-resistant due to the spherical structure, high strength and high hardness, and the gloss stability is excellent.
Drawings
FIG. 1 is a table of conventional physicochemical property test results in an embodiment of the present invention;
FIG. 2 is a table of results of a wool felt test in accordance with an embodiment of the present invention.
Detailed Description
The invention is described in detail below in connection with specific examples, but in no way limits the invention.
Example 1:
the high wear-resistant water-based matte UV varnish comprises a main agent and a diluent, wherein the main agent comprises the following components in parts by weight:
example 2:
the high wear-resistant water-based matte UV varnish comprises a main agent and a diluent, wherein the main agent comprises the following components in parts by weight:
example 3:
the high wear-resistant water-based matte UV varnish comprises a main agent and a diluent, wherein the main agent comprises the following components in parts by weight:
wherein:
the highly abrasion-resistant aqueous matte UV varnishes of examples 1-3 were used in the field, and were further subjected to viscosity adjustment by adding deionized water again, as well as deionized water again as a diluent, depending on environmental factors at the construction site.
The preparation of the highly abrasion resistant aqueous matte UV varnish of examples 1-3 comprises the steps of:
1) Preparation of the thickener:
1-1) preparing raw materials according to a formula;
1-2) adding the formula amount of aqueous cosolvent into a dispersing container, slowly adding the formula amount of thickener under stirring, and stirring and dispersing to a uniform state;
1-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
2) Preparation of a photoinitiator:
2-1) preparing raw materials according to a formula;
2-2) adding the cosolvent with the formula amount into a dispersing container, slowly adding the photoinitiator with the formula amount under stirring, and stirring and dispersing to a uniform state;
2-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
3) Mixing:
3-1) adding the formula amount of the aqueous polyurethane acrylate emulsion into a paint mixing container;
3-2) slowly adding the deionized water with the formula amount under stirring;
3-3) slowly adding the photoinitiator prepared in the step 2) under stirring;
3-4) slowly adding the wetting agent with the formula amount under stirring;
3-5) slowly adding the formula amount of the anti-settling agent under stirring;
3-6) slowly adding the formula amount of the aqueous polyethylene wax slurry under stirring;
3-7) slowly adding ceramic powder and extinction powder with the formula amount under stirring;
3-8) slowly adding the thickener prepared in the step 3) under stirring, and adjusting the viscosity to 70-80Ku;
4) Grinding:
4-1) grinding the uniformly mixed semi-finished product prepared according to the step 3) by a grinder, controlling the rotating speed of the grinder to be about 2000r/min, and grinding for 4 times until the fineness is less than or equal to 15 mu m;
4-2) filtering with a 300-mesh filter screen to obtain the main agent component of the high wear-resistant water-based matte UV varnish.
In the step 1), the thickener with the formula amount is added and stirred for 5-10min at 300-500 r/min; in the step 2), adding the photoinitiator with the formula amount, and stirring for 5-10min at 300-500 r/min; in the step 3), the materials with the formula amount are gradually added according to the sequence, and the thickener with the formula amount is stirred for 10-20min at 800-1200 r/min.
Wherein:
aqueous polyurethane acrylate emulsion: the physical properties of the paint film are mainly determined by the properties of the film forming substances;
cosolvent: the cosolvent can reduce the viscosity of the whole coating system, provide wettability to pigment and filler, improve the dispersing effect, and simultaneously is an excellent film forming auxiliary agent, reduce MFFT and enable the film forming property of a paint film to be better;
and (3) a photoinitiator: the initiator molecule is transited from a ground state to an excited singlet state after directly or indirectly absorbing light energy, and is transited to the excited triplet state through intersystem crossing after having a certain light absorbing capacity in an ultraviolet light region such as 250-400nm or a visible light region such as 400-800 nm; upon excitation of the singlet or triplet state undergoing a single or bimolecular chemical action, reactive fragments are generated which are capable of initiating polymerization of the monomer, and these reactive fragments may be free radicals, cations, anions, etc.;
aqueous wetting agent: the surface tension of the water-based paint is reduced, the sensitivity of the paint to substrate pollutants is reduced, the paint can be better spread on the substrate, and the probability of paint film defects such as shrinkage cavity, pinholing and the like is reduced;
aqueous anti-settling agent: the water-based anti-settling agent is AQH-633E, is a modified polyamide wax, and can form a three-dimensional net structure to generate thixotropy, so that the settling of pigment and filler can be prevented, and the sagging resistance of a coating film can be improved;
aqueous polyethylene wax slurry: the wear-resistant effect of the coating of the water-based paint system can be obviously improved, and the coating has excellent smoothness and scratch resistance;
ceramic powder: the ceramic powder used is a high strength, inert, hard, fine spherical particle. Unlike other irregularly shaped fillers, ceramic microspheres can roll like steel balls in bearings, thus reducing the viscosity thereof; meanwhile, the surface of the coating is tough and wear-resistant due to the spherical structure, high strength and high hardness, and the gloss stability is excellent;
and (3) a thickening agent: the thickening agent is a rheological additive, and can improve the viscosity of the paint under the action of proper shearing force, so as to prevent sagging in the construction process.
The ultra-hard coating with special flexibility is prepared by mixing two high-functionality fat-type aqueous polyurethane acrylate emulsions, so as to meet the requirements of hardness and adhesive force, and meanwhile, the high-functionality aqueous UV resin has excellent wear resistance and can basically meet the requirements of physical property test of a Keyboard.
Conventional physicochemical properties and wool felt resistance tests were performed on the high abrasion-resistant aqueous matte UV varnishes of examples 1-3, see the conventional physicochemical property test result table of fig. 1, and the wool felt resistance test result table of fig. 2;
as can be seen from FIG. 1, examples 1-3, which are made up of two high functionality aliphatic aqueous urethane acrylate emulsions, provide hardness and flexibility, respectively, and the high functionality aqueous UV resin has excellent abrasion resistance, and all of the above 3 examples can meet the requirements of conventional physical property tests.
As can be seen from fig. 2, in the embodiment 1, the high-strength ceramic alumina microspheres are adopted to replace most of the traditional matting powder, and after 200g/25 ten-thousand times of testing is completed, the gloss of the wool-resistant felt is changed from 4.3 degrees to 5.5 degrees, the change is very small, and the testing requirement that the gloss change is smaller than 2 degrees can be met. Example 2 was partially substituted, with gloss varying from 4.6 ° to 9.6 °, which exceeded the standard requirements. Example 3 completely uses the traditional matting powder, the gloss is extremely variable, ranging from 4.5 ° to 24.5 °, and completely does not meet the high wear resistance requirement.
Comparative example 1 was performed:
the only difference from example 1 is that the two aqueous polyurethane acrylate emulsions of the high functionality are replaced by the equivalent amounts of the 6-functional aqueous polyurethane acrylate emulsion VPU-6302 and the 2-functional aqueous polyurethane acrylate emulsion VPU-2303A of the blaze chemistry.
The performance test results show that the RCA test of the product provided in proportion 1 had a polished NG 120 times, the hardness test 1kg/2H had a slightly scratched NG, and the product was significantly worse than the RCA test of example 1 had a polished NG 200 times, and the hardness test 1kg/2H had no scratches.
Comparative example 2 was performed:
the only difference from example 1 is that the high strength ceramic alumina microspheres were replaced with conventional glass frit;
the performance test results show that the wool felt of the product provided in the comparative example 2 has 200 g/ten thousand times, and the gloss is changed from 4.7 degrees to 25.4 degrees, which is far more than the standard requirement that the gloss change is less than 2 degrees.
Compared with the prior art, the 1) of the embodiment 1-3 adopts two high-functionality fat-type aqueous polyurethane acrylate emulsion to mix and splice, respectively provides hardness and flexibility, and prepares the super-hard coating with special flexibility to meet the requirements of hardness and adhesive force;
2) The high-functional aqueous UV resin has excellent wear resistance, and can basically meet the requirement of physical property test of a Keyboard;
3) The high-strength ceramic microspheres are replaced by most of traditional extinction powder, and are high-strength, inert, hard and fine spherical particles, compared with fillers with other shapes, the ceramic microspheres have the smallest surface area volume ratio, the oil absorption is low, the resin consumption can be reduced, the filler consumption is increased, the microspheres with smaller volumes are filled in gaps among the microspheres with larger volumes, the solid content is increased, the VOC is reduced, the cost is reduced, the ceramic microspheres can roll like steel balls in bearings unlike other fillers with irregular shapes, and the viscosity is reduced; and the surface of the coating is tough and wear-resistant due to the spherical structure, high strength and high hardness, and the gloss stability is excellent.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (10)
1. A high wear-resistant water-based matte UV varnish is characterized in that: comprises a main agent;
the main agent consists of the following components in parts by weight:
2. the highly abrasion-resistant aqueous matte UV varnish according to claim 1, wherein: the main agent consists of the following components in parts by weight:
3. a highly abrasion resistant aqueous matte UV varnish according to claim 1 or 2, characterized in that: the aqueous polyurethane acrylic ester emulsion is UAW-74017W of Guangzhou nine dimensions and is a new UCECOAT 7200; the cosolvent is selected from ethylene glycol butyl ether, diethylene glycol butyl ether and isopropanol.
4. A highly abrasion resistant aqueous matte UV varnish according to claim 3, wherein: the photoinitiator is TPO or Irgacure184; the aqueous wetting agent is TEGO-4100, 104E.
5. The highly abrasion-resistant aqueous matte UV varnish of claim 4 wherein: the aqueous anti-settling agent is AQH-633E of Dilubar.
6. The highly abrasion-resistant aqueous matte UV varnish of claim 5 wherein: the aqueous polyethylene wax slurry is selected from A-348 of Fu of Japan.
7. The highly abrasion-resistant aqueous matte UV varnish of claim 6 wherein: ceramic powder is ceramic alumina microsphere of NANOE of France.
8. The highly abrasion-resistant aqueous matte UV varnish of claim 7 wherein: the matting powder is E-1011 of Tosoh Japan.
9. The highly abrasion-resistant aqueous matte UV varnish of claim 8 wherein: the thickener is Borchi-0620 of OMG in U.S.
10. A preparation method of high wear-resistant water-based matte UV varnish is characterized by comprising the following steps of: the method comprises the following steps:
1) Preparation of the thickener:
1-1) preparing raw materials according to a formula;
1-2) adding the formula amount of aqueous cosolvent into a dispersing container, slowly adding the formula amount of thickener under stirring, and stirring and dispersing to a uniform state;
1-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
2) Preparation of a photoinitiator:
2-1) preparing raw materials according to a formula;
2-2) adding the cosolvent with the formula amount into a dispersing container, slowly adding the photoinitiator with the formula amount under stirring, and stirring and dispersing to a uniform state;
2-3) filtering by using a 300-mesh filter screen, and using the filter screen when feeding;
3) Mixing:
3-1) adding the formula amount of the aqueous polyurethane acrylate emulsion into a paint mixing container;
3-2) slowly adding the deionized water with the formula amount under stirring;
3-3) slowly adding the photoinitiator prepared in the step 2) under stirring;
3-4) slowly adding the wetting agent with the formula amount under stirring;
3-5) slowly adding the formula amount of the anti-settling agent under stirring;
3-6) slowly adding the formula amount of the aqueous polyethylene wax slurry under stirring;
3-7) slowly adding ceramic powder and extinction powder with the formula amount under stirring;
3-8) slowly adding the thickener prepared in the step 3) under stirring, and adjusting the viscosity to 70-80Ku;
4) Grinding:
4-1) grinding the uniformly mixed semi-finished product prepared according to the step 3) by a grinder, controlling the rotating speed of the grinder to be about 2000r/min, and grinding for 4 times until the fineness is less than or equal to 15 mu m;
4-2) filtering with a 300-mesh filter screen to obtain the main agent component of the high wear-resistant water-based matte UV varnish.
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| CN112300687A (en) * | 2020-09-24 | 2021-02-02 | 湖南松井新材料股份有限公司 | 3C water-based high-gloss UV finish paint and preparation method and construction process thereof |
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| CN112300687A (en) * | 2020-09-24 | 2021-02-02 | 湖南松井新材料股份有限公司 | 3C water-based high-gloss UV finish paint and preparation method and construction process thereof |
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| CN114410215A (en) * | 2021-12-10 | 2022-04-29 | 东周化学工业（昆山）有限公司 | ABS substrate water-based matte wear-resistant UV varnish |
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