CN112194976A - UV LED ultraviolet-cured metal anti-fingerprint nano-coating, preparation method thereof and metal plate - Google Patents
UV LED ultraviolet-cured metal anti-fingerprint nano-coating, preparation method thereof and metal plate Download PDFInfo
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- CN112194976A CN112194976A CN202010910527.3A CN202010910527A CN112194976A CN 112194976 A CN112194976 A CN 112194976A CN 202010910527 A CN202010910527 A CN 202010910527A CN 112194976 A CN112194976 A CN 112194976A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
- B05D7/26—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials synthetic lacquers or varnishes
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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- 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
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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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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a UV LED ultraviolet-curing metal anti-fingerprint nano-coating, a preparation method thereof and a metal plate; the coating comprises: 2 functional group aliphatic urethane acrylate oligomer, 8-15 parts of silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate, dipentaerythritol hexaacrylate, a photoinitiator, an active ammonia co-initiator and an auxiliary agent; the coating can effectively utilize the UV LED as an ultraviolet light source for rapid curing, has the characteristics of energy consumption saving, use cost reduction and environmental protection, and has the advantages of high curing speed, good performance of the formed coating film, strong adhesive force on a metal plate, stain resistance, water resistance and fingerprint resistance; the preparation method of the coating is simple, the components can be fully dispersed and fully reacted through a dispersion machine, and the industrial production is easy to realize.
Description
Technical Field
The invention relates to the technical field of coatings and preparation methods thereof, in particular to a UV LED ultraviolet-cured metal anti-fingerprint nano coating, a preparation method thereof and a metal plate.
Background
The traditional UV coating is ultraviolet light curing resin UV coating, namely, the resin UV coating which takes ultraviolet rays as curing energy and is quickly crosslinked into a film at normal temperature. However, the conventional UV light source is mainly a high-pressure mercury lamp or a metal halide lamp, which has disadvantages of large power consumption, large heat generation amount, and low conversion rate of electric energy to ultraviolet rays, and is likely to cause deformation or damage of the substrate due to the large heat generation amount. In addition, the high-pressure mercury lamp contains toxic substance mercury and generates ozone, and the ozone causes harm to the atmosphere, pollutes the environment and harms the health.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide the UV LED ultraviolet curing metal anti-fingerprint nano coating, the preparation method thereof and the metal plate, which can be used for quickly curing metal coatings such as stainless steel and the like by using a UV-LED lamp as a light source and aims to solve the technical problems of high energy consumption, high cost, environmental pollution and the like caused by the UV light curing coating cured by the traditional UV light source.
In order to achieve the purpose, the invention adopts the following technical scheme:
the UV LED ultraviolet-curing metal anti-fingerprint nano coating comprises the following components in parts by weight: 22-30 parts of 2-functional group aliphatic urethane acrylate oligomer, 8-15 parts of silicon modified urethane acrylate oligomer, 12-18 parts of 6-functional group aliphatic urethane acrylate oligomer, 15-20 parts of ethoxylated trimethylolpropane triacrylate, 10-13 parts of propoxylated neopentyl glycol diacrylate, 12-15 parts of dipentaerythritol hexaacrylate, 3-5 parts of photoinitiator, 2-5 parts of active ammonia co-initiator and 1-2 parts of auxiliary agent.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following components in parts by weight: 26.5 parts of 2-functional group aliphatic urethane acrylate oligomer, 12 parts of silicon modified urethane acrylate oligomer, 16 parts of 6-functional group aliphatic urethane acrylate oligomer, 15 parts of ethoxylated trimethylolpropane triacrylate, 10 parts of propoxylated neopentyl glycol diacrylate, 13 parts of dipentaerythritol hexaacrylate, 4 parts of photoinitiator, 2 parts of active ammonia co-initiator and 1.5 parts of auxiliary agent.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the photoinitiator is one or more of a ketone hydrogen abstraction type liquid photoinitiator, trimethylbenzene acyl diphenyl phosphine oxide and a cracking type isomer mixture.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the cracking isomer mixture is a mixture of diphenyl ethoxy phosphine and 2,4, 6-trimethyl benzoyl chloride.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the active ammonia co-initiator is one of active ammonia and dimethylacrylamide.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the auxiliary agent mainly comprises surface-modified silicon dioxide nano-particles and organic silicon modified acrylate.
In the UV LED ultraviolet-curing metal anti-fingerprint nano-coating, the mass ratio of the surface modified silicon dioxide nano-particles to the organic silicon modified acrylate is 3: 2.
In the UV LED ultraviolet curing metal anti-fingerprint nano-coating, the surface modified silicon dioxide nano-particles are NANOBYK-3605, and the organosilicon modified acrylate is BYK-SILCLEAN 3700.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
s1, putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
s2, adding the photoinitiator and the active ammonia co-initiator, dispersing for 10-20min by a dispersion machine under the condition of the rotation speed of 1200-1500rpm, and sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the auxiliary agent, dispersing for 3-7min at the rotation speed of 600 plus 800rpm, and uniformly mixing to obtain the UV LED ultraviolet curing metal anti-fingerprint nano coating.
The utility model provides a metal sheet, is metal sheet layer and lacquer rete respectively from supreme down, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make.
Has the advantages that:
the invention provides a UV LED ultraviolet-cured metal anti-fingerprint nano-coating, a preparation method thereof and a metal plate, wherein the UV LED ultraviolet-cured metal anti-fingerprint nano-coating effectively utilizes a UV LED as an ultraviolet light source for rapid curing, and the following advantages are achieved:
(1) energy consumption is saved: compared with the traditional high-pressure mercury lamp, the UV LED (ultraviolet light emitting diode) has high electricity-light conversion efficiency and can save 50-75% of electric power.
(2) The use cost is reduced: the UV LED is a cold light source and can be used for heat-sensitive substrates without using complicated cooling equipment such as a cooling roll and a shade cloth in curing the coating because there is no output in the infrared spectrum range.
(3) And (3) environmental protection: because the UV LED is used for curing the coating, no ozone is generated, and the environment is not polluted.
(4) The curing speed is high, the formed coating film has good performance and high hardness, the adhesion on a metal plate is strong, and the coating film has good stain resistance and good fingerprint resistance.
The preparation method of the UV LED ultraviolet curing metal anti-fingerprint nano coating is simple, the full dispersion and full reaction of all components can be realized through a dispersion machine, and the industrial production is easy to realize.
Detailed Description
The invention provides a UV LED ultraviolet-curing metal anti-fingerprint nano-coating, a preparation method thereof and a metal plate, and the invention is further detailed by the following embodiments in order to make the purpose, technical scheme and effect of the invention clearer and more clear. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
The invention provides a UV LED ultraviolet-curing metal anti-fingerprint nano coating which comprises the following components in parts by weight: 22-30 parts of 2-functional group aliphatic urethane acrylate oligomer, 8-15 parts of silicon modified urethane acrylate oligomer, 12-18 parts of 6-functional group aliphatic urethane acrylate oligomer, 15-20 parts of ethoxylated trimethylolpropane triacrylate, 10-13 parts of propoxylated neopentyl glycol diacrylate, 12-15 parts of dipentaerythritol hexaacrylate, 3-5 parts of photoinitiator, 2-5 parts of active ammonia co-initiator and 1-2 parts of auxiliary agent.
The UV LED ultraviolet-curing metal anti-fingerprint nano coating can be coated on a flat metal steel plate in a roller coating or spraying manner, such as: stainless steel plate. The coating is leveled by an infrared flow at the temperature of 75-85 ℃, then is instantly cured from a liquid state to a solid state under the irradiation of ultraviolet light of 385nm or 395nm, and is air-cooled for 3-5min to prepare the coating with excellent performance.
The 2-functional aliphatic urethane acrylate oligomer is used as a main resin in the coating, so that the coating is endowed with better flexibility, leveling property and water resistance. The silicon-modified polyurethane acrylate oligomer is used for improving the surface tension of a paint film, so that the fingerprint resistance effect of the paint film is better. The 6-functional group aliphatic polyurethane acrylate oligomer can obviously improve the wear resistance and hardness of a paint film and effectively improve the chemical performance of the paint film. Ethoxylated trimethylolpropane triacrylate increases the hardness of the paint film and the monomer is less irritating to the skin. The propylene oxide neopentyl glycol diacrylate is used for improving the leveling property of a paint film, improving the adhesive force of the paint film and increasing the flexibility of the paint film. The dipentaerythritol hexaacrylate is used for improving the curing speed of a paint film and enhancing the water boiling resistance of the paint film. The components are subjected to polymerization hinge reaction under the combined action of a photoinitiator and an active ammonia co-initiator and the irradiation of ultraviolet light of 385nm or 395nm, so that the coating is cured. Through the synergistic effect of the components, the prepared coating has good fingerprint prevention effect and excellent comprehensive properties such as flexibility, smoothness, water resistance, adhesive force, wear resistance, hardness and the like.
In the embodiment, the UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following components in parts by weight: 26.5 parts of 2-functional group aliphatic urethane acrylate oligomer, 12 parts of silicon modified urethane acrylate oligomer, 16 parts of 6-functional group aliphatic urethane acrylate oligomer, 15 parts of ethoxylated trimethylolpropane triacrylate, 10 parts of propoxylated neopentyl glycol diacrylate, 13 parts of dipentaerythritol hexaacrylate, 4 parts of photoinitiator, 2 parts of active ammonia co-initiator and 1.5 parts of auxiliary agent.
Further, the photoinitiator is one or more of a ketone hydrogen abstraction type liquid photoinitiator, trimethylbenzoyl diphenyl phosphine oxide and a cracking type isomer mixture. The photoinitiator can absorb energy with the wavelength of 385nm or 395nm in an ultraviolet region to generate free radicals so as to quickly initiate the polymerization crosslinking reaction among all components of the coating, so that the liquid coating can form a solid paint film in a fraction of a second, the reaction speed is extremely high, and the production efficiency is favorably improved.
Further, the cracking isomer mixture is a mixture of diphenyl ethoxy phosphine and 2,4, 6-trimethyl benzoyl chloride. After the photoinitiator molecules absorb light energy, the photoinitiator molecules are excited from a ground state to an excited state, the excited state molecules react, and covalent bonds between carbonyl groups and adjacent carbon atoms are lengthened, weakened, broken and generated into initial free radicals.
Specifically, the active ammonia co-initiator is one of active ammonia and dimethylacrylamide.
Furthermore, the auxiliary agent mainly comprises surface modified silicon dioxide nano-particles and organic silicon modified acrylate. The surface modified silicon dioxide nano-particles are used for improving the anti-fouling and anti-fingerprint effects of a paint film; the organosilicon modified acrylate is used for improving the leveling property of a paint film. The surface modified silica nanoparticles are NANOBYK-3605, and the NANOBYK-3605 is an inorganic auxiliary agent based on the surface modified silica nanoparticles (20nm), is used for improving the scratch resistance and the wear resistance of the UV LED radiation curing coating, and has no adverse effect on the gloss, the fog shadow and the coating performance. The organic silicon modified acrylate is BYK-SILCLEAN3700 which has hydroxyl functional groups, is oriented on the surface of the coating and is crosslinked with the surface of a polymer network, and the active groups of the BYK-SILCLEAN3700 are arranged on the surface of the coating in the film forming process to be crosslinked, so that the coating with durable performance is formed, and the surface hydrophobicity, more durable anti-blocking performance and less dust deposition performance are endowed to the coating.
Further, the mass ratio of the surface modified silicon dioxide nano particles to the organic silicon modified acrylate is 3: 2. The addition amount of the silicone-modified acrylate affects the surface contact angle, water absorption, stain resistance, and the like of the coating film. The auxiliary agent in the above proportion range has the best improvement effect on the leveling property, scratch resistance, wear resistance, stain resistance and the like of the coating film.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
(1) putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
(2) then adding a photoinitiator and an active ammonia co-initiator, dispersing for 10-20min by a dispersion machine under the conditions of the rotation speed of 1200 plus 1500rpm, and sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the auxiliary agent, dispersing for 3-7min at the rotation speed of 600 plus 800rpm, and uniformly mixing to obtain the UV LED ultraviolet curing metal anti-fingerprint nano coating.
The fineness of the UV LED ultraviolet-cured metal anti-fingerprint nano coating is the fineness measured by a scraper blade fineness meter in the production process of the coating or the smoothness of the surface of a coating after curing and film forming, and is one of important indexes of the coating, the coating has overlarge fineness and is easy to precipitate, the coating has roughness when being coated on a metal plate, and the smoothness, the gloss, the adhesion degree and the like of the coating are reduced; when the fineness is less than or equal to 10 micrometers, the coating area can be enlarged; and the above properties of the coating film are optimized.
The utility model provides a metal sheet, is metal sheet layer and lacquer rete respectively from supreme down, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make. The metal plate includes a plate having a high surface smoothness, such as a stainless steel plate, an aluminum alloy plate, a zinc steel plate, a tin steel plate, a carbon steel plate, and the like.
Example 1
The UV LED ultraviolet-curing metal anti-fingerprint nano coating comprises the following components in parts by weight: 26.5 parts of 2 functional group aliphatic urethane acrylate oligomer, 12 parts of silicon modified urethane acrylate oligomer, 16 parts of 6 functional group aliphatic urethane acrylate oligomer, 15 parts of ethoxylated trimethylolpropane triacrylate, 10 parts of propoxylated neopentyl glycol diacrylate, 13 parts of dipentaerythritol hexaacrylate, 4 parts of ketone hydrogen abstraction type liquid photoinitiator, 2 parts of active ammonia, 1.5 parts of surface modified silica nano-particles and organic silicon modified acrylate, wherein the weight ratio of the two is 3: 2.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
(1) putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
(2) adding ketone hydrogen abstraction liquid photoinitiator and active ammonia, dispersing for 20min by a dispersion machine at the rotation speed of 1400rpm, sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the surface modified silicon dioxide nano particles and the organic silicon modified acrylate, dispersing for 5min at the rotating speed of 700rpm, and uniformly mixing to obtain the UV LED ultraviolet-cured metal anti-fingerprint nano coating.
The utility model provides a metal sheet, is metal sheet layer and lacquer rete respectively from supreme down, the metal sheet layer is the corrosion resistant plate material layer, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make.
Example 2
The UV LED ultraviolet-curing metal anti-fingerprint nano coating comprises the following components in parts by weight: 22 parts of 2 parts of a functional group aliphatic urethane acrylate oligomer, 10 parts of a silicon modified urethane acrylate oligomer, 18 parts of a 6 functional group aliphatic urethane acrylate oligomer, 18 parts of ethoxylated trimethylolpropane triacrylate, 12 parts of propoxylated neopentyl glycol diacrylate, 14 parts of dipentaerythritol hexaacrylate, 4 parts of trimethylbenzoyl diphenylphosphine oxide, 4 parts of dimethylacrylamide, 2 parts of surface modified silica nanoparticles and an organosilicon modified acrylate, the weight ratio of the two being 3: 2.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
(1) putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
(2) adding trimethyl benzoyl diphenyl phosphine oxide and dimethyl acrylamide, dispersing for 10min by a dispersion machine under the condition of the rotating speed of 1300rpm, sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the surface modified silicon dioxide nano particles and the organic silicon modified acrylate, dispersing for 6min at the rotating speed of 700rpm, and uniformly mixing to obtain the UV LED ultraviolet-cured metal anti-fingerprint nano coating.
The utility model provides a sheet metal, is supreme metal sheet material layer and lacquer rete respectively down, the metal sheet material layer is aluminium alloy plate layer, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make.
Example 3
The UV LED ultraviolet-curing metal anti-fingerprint nano coating comprises the following components in parts by weight: 24 parts of 2 functional group aliphatic urethane acrylate oligomer, 15 parts of silicon modified urethane acrylate oligomer, 14 parts of 6 functional group aliphatic urethane acrylate oligomer, 16 parts of ethoxylated trimethylolpropane triacrylate, 11 parts of propoxylated neopentyl glycol diacrylate, 15 parts of dipentaerythritol hexaacrylate, 5 parts of diphenyl ethoxy phosphine and 2,4, 6-trimethyl benzoyl chloride mixture, 3 parts of dimethyl acrylamide, 1 part of surface modified silicon dioxide nano-particles and organosilicon modified acrylate, wherein the weight ratio of the two is 3: 2.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
(1) putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
(2) adding a mixture of diphenyl ethoxy phosphine, 2,4, 6-trimethyl benzoyl chloride and dimethyl acrylamide, dispersing for 15min by a dispersion machine under the condition of the rotating speed of 1200rpm, and sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the surface modified silicon dioxide nano particles and the organic silicon modified acrylate, dispersing for 3min at the rotating speed of 800rpm, and uniformly mixing to obtain the UV LED ultraviolet-cured metal anti-fingerprint nano coating.
The utility model provides a sheet metal, is supreme metal sheet material layer and lacquer rete respectively down, the metal sheet material layer is zinc steel sheet material layer, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make.
Example 4
The UV LED ultraviolet-curing metal anti-fingerprint nano coating comprises the following components in parts by weight: 30 parts of 2 functional group aliphatic urethane acrylate oligomer, 8 parts of silicon modified urethane acrylate oligomer, 12 parts of 6 functional group aliphatic urethane acrylate oligomer, 20 parts of ethoxylated trimethylolpropane triacrylate, 13 parts of propoxylated neopentyl glycol diacrylate, 12 parts of dipentaerythritol hexaacrylate, 3 parts of ketone hydrogen abstraction type liquid photoinitiator, 5 parts of active ammonia, 1.5 parts of surface modified silica nano-particles and organic silicon modified acrylate, wherein the weight ratio of the two is 3: 2.
A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following steps:
(1) putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
(2) adding ketone hydrogen abstraction liquid photoinitiator and active ammonia, dispersing for 15min by a dispersion machine at the rotation speed of 1500rpm, sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the surface modified silicon dioxide nano particles and the organic silicon modified acrylate, dispersing for 7min at the rotating speed of 600rpm, and uniformly mixing to obtain the UV LED ultraviolet-cured metal anti-fingerprint nano coating.
The utility model provides a sheet metal, is supreme metal sheet material layer and lacquer rete respectively down, the metal sheet material layer is tin steel sheet material layer, the lacquer rete passes through UV LED ultraviolet curing metal prevent fingerprint nanometer coating solidification and make.
The viscosity of the coating prepared in examples 1-4 is 20 seconds (30 ℃) of No. 2 cup of rock field, the fineness is less than or equal to 10 microns, the curing speed is 15m, and the curing light source is 395 nm. Through tests, the hardness of the coating formed on the metal plate (the stainless steel plate is adopted in the embodiment 1, the aluminum alloy plate is adopted in the embodiment 2, the zinc steel plate is adopted in the embodiment 3, and the tin steel plate is adopted in the embodiment 4) is the hardness of the Chinese pencil 2H, the detection is carried out according to the GB9286-88S standard, the adhesive force of the coating reaches 0 grade, and the coating is attractive in appearance, good in stain resistance and good in fingerprint prevention effect.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. The UV LED ultraviolet-curing metal anti-fingerprint nano coating is characterized by comprising the following components in parts by weight: 22-30 parts of 2-functional group aliphatic urethane acrylate oligomer, 8-15 parts of silicon modified urethane acrylate oligomer, 12-18 parts of 6-functional group aliphatic urethane acrylate oligomer, 15-20 parts of ethoxylated trimethylolpropane triacrylate, 10-13 parts of propoxylated neopentyl glycol diacrylate, 12-15 parts of dipentaerythritol hexaacrylate, 3-5 parts of photoinitiator, 2-5 parts of active ammonia co-initiator and 1-2 parts of auxiliary agent.
2. The UV LED ultraviolet-curing metal anti-fingerprint nano-coating as claimed in claim 1, wherein the UV LED ultraviolet-curing metal anti-fingerprint nano-coating comprises the following components in parts by weight: 26.5 parts of 2-functional group aliphatic urethane acrylate oligomer, 12 parts of silicon modified urethane acrylate oligomer, 16 parts of 6-functional group aliphatic urethane acrylate oligomer, 15 parts of ethoxylated trimethylolpropane triacrylate, 10 parts of propoxylated neopentyl glycol diacrylate, 13 parts of dipentaerythritol hexaacrylate, 4 parts of photoinitiator, 2 parts of active ammonia co-initiator and 1.5 parts of auxiliary agent.
3. The UV LED ultraviolet-curable metal fingerprint resistant nano-coating of claim 1, wherein the photoinitiator is one or more of a liquid photoinitiator of a ketone hydrogen abstraction type, trimethylbenzoyl diphenylphosphine oxide and a cleavage type isomer mixture.
4. The UV LED ultraviolet-curing metal anti-fingerprint nano-coating of claim 3, wherein the cleavage type isomer mixture is a mixture of diphenyl ethoxy phosphine and 2,4, 6-trimethylbenzoyl chloride.
5. The UV LED ultraviolet-curable metal anti-fingerprint nano-coating of claim 1, wherein the active ammonia co-initiator is one of active ammonia and dimethylacrylamide.
6. The UV LED ultraviolet-curing metal anti-fingerprint nano-coating as claimed in claim 1, wherein the auxiliary agent mainly comprises surface-modified silica nanoparticles and organic silicon modified acrylate.
7. The UV LED ultraviolet-curing metal anti-fingerprint nano-coating as claimed in claim 6, wherein the mass ratio of the surface-modified silica nanoparticles to the organosilicon-modified acrylate is 3: 2.
8. The UV LED ultraviolet-curable metal anti-fingerprint nano-coating of claim 7, wherein the surface-modified silica nanoparticles are NANOBYK-3605, and the organosilicon-modified acrylate is BYK-SILCLEAN 3700.
9. A preparation method of a UV LED ultraviolet-curing metal anti-fingerprint nano-coating, which is characterized by comprising the UV LED ultraviolet-curing metal anti-fingerprint nano-coating as claimed in any one of claims 1 to 8, and the preparation method comprises the following steps:
s1, putting 2 functional group aliphatic urethane acrylate oligomer, silicon modified urethane acrylate oligomer, 6 functional group aliphatic urethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylated neopentyl glycol diacrylate and dipentaerythritol hexaacrylate into a container, and dispersing for 5min by a dispersion machine at the rotating speed of 700rpm until the mixture is uniformly mixed;
s2, adding the photoinitiator and the active ammonia co-initiator, dispersing for 10-20min by a dispersion machine under the condition of the rotation speed of 1200-1500rpm, and sampling and inspecting;
when the fineness is less than or equal to 10 micrometers, adding the auxiliary agent, dispersing for 3-7min at the rotation speed of 600 plus 800rpm, and uniformly mixing to obtain the UV LED ultraviolet curing metal anti-fingerprint nano coating.
10. A metal plate, which is characterized in that a metal plate layer and a paint film layer are respectively arranged from bottom to top, wherein the paint film layer is prepared by curing the UV LED ultraviolet curing metal anti-fingerprint nano coating as claimed in any one of claims 1 to 8.
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| CN112961537A (en) * | 2021-03-20 | 2021-06-15 | 中山市中益油墨涂料有限公司 | Hydrophobic UV-LED ink for glass and preparation method thereof |
| CN115558403A (en) * | 2022-09-19 | 2023-01-03 | 广东希贵光固化材料有限公司 | Ultraviolet photocureable coating for stainless steel condenser tube |
| CN115851097A (en) * | 2022-12-21 | 2023-03-28 | 浙江大学 | Preparation method of porous liquid injected photoresponse super-lubricating antifouling paint |
| CN115960504A (en) * | 2022-11-30 | 2023-04-14 | 河南立邦长润发科技材料有限公司 | UV adhesive force primer used for triamine paper and preparation method thereof |
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| CN105111923A (en) * | 2015-05-26 | 2015-12-02 | 史海生 | LED-UV cold light-cured rapid-repairing paint and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961537A (en) * | 2021-03-20 | 2021-06-15 | 中山市中益油墨涂料有限公司 | Hydrophobic UV-LED ink for glass and preparation method thereof |
| CN115558403A (en) * | 2022-09-19 | 2023-01-03 | 广东希贵光固化材料有限公司 | Ultraviolet photocureable coating for stainless steel condenser tube |
| CN115960504A (en) * | 2022-11-30 | 2023-04-14 | 河南立邦长润发科技材料有限公司 | UV adhesive force primer used for triamine paper and preparation method thereof |
| CN115960504B (en) * | 2022-11-30 | 2024-03-26 | 河南立邦长润发科技材料有限公司 | UV adhesive force primer for triamine paper and preparation method thereof |
| CN115851097A (en) * | 2022-12-21 | 2023-03-28 | 浙江大学 | Preparation method of porous liquid injected photoresponse super-lubricating antifouling paint |
| CN115851097B (en) * | 2022-12-21 | 2023-08-15 | 浙江大学 | Preparation method of light-response super-lubrication anti-fouling paint injected with porous liquid |
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