CN114410215A - ABS substrate water-based matte wear-resistant UV varnish - Google Patents

ABS substrate water-based matte wear-resistant UV varnish Download PDF

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CN114410215A
CN114410215A CN202111507810.2A CN202111507810A CN114410215A CN 114410215 A CN114410215 A CN 114410215A CN 202111507810 A CN202111507810 A CN 202111507810A CN 114410215 A CN114410215 A CN 114410215A
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aqueous
resistant
varnish
wear
based matte
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田小丰
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Tongjou Chemical Industrial Kunshan Co ltd
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Tongjou Chemical Industrial Kunshan Co ltd
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    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds
    • C09D175/16Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
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    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4266Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
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    • C08G18/4277Caprolactone and/or substituted caprolactone
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/671Unsaturated compounds having only one group containing active hydrogen
    • C08G18/672Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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Abstract

The invention provides an ABS substrate water-based matte wear-resistant UV varnish which comprises the following components in percentage by weight: 6 functional group aqueous polyurethane acrylate dispersoid, 2 functional group aqueous polyurethane acrylate dispersoid, deionized water, aqueous dispersant, aqueous silicon dioxide, aqueous polytetrafluoroethylene wax dispersoid, aqueous nano aluminum oxide dispersion liquid, organic modified hectorite, film forming auxiliary agent, photoinitiator, aqueous wetting agent, aqueous defoaming agent, aqueous thickening agent and ammonia neutralizer. The invention provides an ABS substrate water-based matte wear-resistant UV varnish, a film is formed by ultraviolet irradiation curing, the production efficiency is higher, the VOC content is low and is less than 200g/L, the gloss change of the film is less than 3 degrees as tested by a specified wear-resistant tester, the adhesion, water resistance and alcohol resistance of the film are excellent, and the wear resistance of the film is superior to that of a solvent-based matte UV varnish.

Description

ABS substrate water-based matte wear-resistant UV varnish
Technical Field
The invention relates to the field of coatings, and particularly relates to an ABS substrate water-based matte wear-resistant UV varnish.
Background
The cosmetic outer package mainly comprises three main materials of plastic, metal and glass, wherein the plastic accounts for 70 percent, the plastic contains more ABS (acrylonitrile butadiene styrene copolymer), the ABS plastic has the advantages of easy forming, strong toughness, impact resistance, high cost performance and the like, and the defects of poor weather resistance and surface hardness, and the surface of the ABS plastic is usually painted for decoration and protection. Compared with the high-gloss paint, the low-gloss paint is soft and convergent in visual effect, gives people an elegant and neat color experience, and is favored by consumers; the ABS cosmetic matte finish paint has the defects that the surface wear resistance is poor due to low gloss, and the appearance is affected because the surface of a coating film is easy to wear after a consumer uses the ABS cosmetic matte finish paint for a long time. The ABS plastic matte finishing paint in the cosmetic outer packaging market at present is mainly coated by a solvent type UV (ultraviolet curing) finishing paint, and the specific process is ABS plastic → pretreatment → spraying solvent type matte UV varnish → ultraviolet curing, wherein the VOC (volatile organic compound) of the solvent type matte UV varnish reaches 600-700 g/L. The ABS substrate water-based matte wear-resistant UV varnish provided by the invention has the main process of ABS plastic → pretreatment → spraying water-based matte wear-resistant UV varnish → ultraviolet curing, wherein the VOC (volatile organic Compounds) of the water-based matte wear-resistant UV varnish is less than 200 g/L.
Disclosure of Invention
The technical problem to be solved is as follows: the invention provides a water-based matte wear-resistant UV varnish for ABS (acrylonitrile-butadiene-styrene) substrates, which aims at solving the technical problems that the surface wear resistance is poor due to low gloss and the appearance is affected by easy wear of the surface of a coating after long-term use of a consumer.
The technical scheme is as follows: an ABS substrate water-based matte wear-resistant UV varnish comprises the following components in percentage by weight: 50-60% of 6-functional group aqueous polyurethane acrylate dispersoid, 10-20% of 2-functional group aqueous polyurethane acrylate dispersoid, 1-2% of aqueous dispersant, 3-5% of aqueous silicon dioxide, 5-10% of aqueous polytetrafluoroethylene wax dispersoid, 3-5% of aqueous nano aluminum oxide dispersoid, 0.2-0.5% of organic modified hectorite, 3-5% of film forming additive, 1-5% of photoinitiator, 0.5-1% of aqueous wetting agent, 0.2-0.5% of aqueous defoaming agent, 1-2% of aqueous thickening agent, 0.2-0.5% of ammonia neutralizer and the balance of deionized water.
Preferably, the mass ratio of the 6 functional group aqueous polyurethane acrylate dispersion to the 2 functional group aqueous polyurethane acrylate dispersion is as follows: (3-6): 1.
Preferably, the 6 functional group aqueous polyurethane acrylate dispersoid and the 2 functional group aqueous polyurethane acrylate dispersoid are prepared by reacting and polymerizing dipentaerythritol, dihydroxy sulfonate and isophorone diisocyanate serving as main monomers, and the coating film has the advantages of high reaction speed, high surface hardness, good water resistance and chemical resistance of the coating film, and strong toughness of the coating film due to compounding of the dipentaerythritol, the dihydroxy sulfonate and the isophorone diisocyanate.
Preferably, the aqueous silica is a surface organic modified silica matting powder having an average particle size of 4.2 μm, and has good solubility and dispersibility in water.
Preferably, the solid content of the aqueous polytetrafluoroethylene wax dispersoid is 55%, the average particle size is 5-7 microns, the melting point is 320 ℃, and the surface friction coefficient of a coating film can be reduced, and the smoothness of the surface of the coating film is improved.
Preferably, the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm, and the surface hardness of the coating can be greatly improved.
Preferably, the film-forming assistant is one or a mixture of several of diethylene glycol butyl ether, diethylene glycol ethyl ether, dipropylene glycol methyl ether, dipropylene glycol butyl ether and tripropylene glycol butyl ether.
Preferably, the photoinitiator is one or a mixture of benzophenone, hydroxycyclohexyl phenyl ketone and acyl phosphorus oxide.
Preferably, the aqueous wetting agent is a polyether siloxane copolymer; the water-based defoaming agent is gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion, and has good coating construction and wettability, good coating surface smoothness and no defects.
Preferably, the water-based thickener is a high-shear compound low-shear polyether polyurethane associated rheological aid, and a coating film has good leveling property and sag resistance.
Preferably, the aqueous dispersant is a copolymer with pigment affinity groups, and has excellent viscosity reduction and wetting dispersion effects.
Preferably, the ammonia neutralizer adopts N, N-dimethylethanolamine, and has the advantages of medium volatilization rate and good storage stability.
Has the advantages that:
1. the invention uses the 6 functional aqueous polyurethane acrylate dispersoid as the main resin, the main structure is formed by the reaction and neutralization of isophorone diisocyanate, polyethylene glycol 400 and pentaerythritol triacrylate, the coating reaction speed is high, the surface hardness and the chemical resistance are better, but the 6 functional aqueous polyurethane acrylate dispersoid has the defects of larger coating shrinkage and easy cracking phenomenon at high film thickness; therefore, the 2-functional water-based polyurethane acrylate dispersoid is compounded, the main structure of the dispersoid is formed by reacting and neutralizing hexamethylene diisocyanate, polycaprolactone diol and hydroxyethyl acrylate, the coating film has good flexibility and low curing shrinkage, and the phenomenon of high film thickness cracking is avoided; the optimal compounding ratio of the two is (3-6): 1, and the compounding of the two not only ensures the hardness and the chemical resistance of the coating, but also prevents the coating from cracking, thereby improving the toughness of the coating.
2. According to the invention, the aqueous polytetrafluoroethylene dispersion is used, the average particle size is 5-7 μm, the melting point is 320 ℃, the polytetrafluoroethylene with the main structure has the minimum surface tension of a solid material, and the dispersion can increase the smoothness of the surface of a coating film, so that the coating film has an extremely low friction coefficient; the average particle size of the aqueous nano-alumina dispersion is 80-100 nm, the Mohs hardness of alumina in a main body structure is 9.0, the dispersion can improve the surface hardness of a coating, and organic and inorganic compounding reduces the surface friction coefficient of the coating and improves the hardness and scratch resistance of the surface of the coating, so that the durable wear resistance of the surface of the coating is improved.
3. The VOC content of the ABS substrate water-based matte wear-resistant UV varnish is less than 200g/L in a construction state, the coating has good adhesion, water resistance and chemical resistance, the gloss change of the coating is less than 3 degrees as tested by a specified wear-resistant tester, and the wear resistance of the coating is superior to that of a solvent-based matte UV varnish.
Detailed Description
Example 1
An ABS substrate water-based matte wear-resistant UV varnish comprises the following components in percentage by weight: 50% of a 6 functional group aqueous polyurethane acrylate dispersion, 10% of a 2 functional group aqueous polyurethane acrylate dispersion, 1% of an aqueous dispersant, 4% of aqueous silica, 10% of an aqueous polytetrafluoroethylene wax dispersion, 5% of an aqueous nano-alumina dispersion, 0.2% of organically modified hectorite, 5% of diethylene glycol butyl ether, 2% of a mixture of benzophenone and hydroxycyclohexyl phenyl ketone, 0.5% of a polyether siloxane copolymer, 0.2% of a gas-phase silica-containing polyether siloxane copolymer emulsion, 1% of an aqueous thickener, 0.5% of N, N-dimethylethanolamine, and the balance being deionized water; wherein the water-based silicon dioxide is surface organic modified silicon dioxide matting powder with the average particle size of 4.2 mu m; the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm; the aqueous thickener is a high-shear compound low-shear polyether polyurethane associative rheological additive; the aqueous dispersant is a copolymer with pigment affinity groups; the ratio of benzophenone to hydroxycyclohexyl phenyl ketone in the mixture of benzophenone and hydroxycyclohexyl phenyl ketone is 1: 1. the formulation according to the examples was prepared in the following way: taking a clean stainless steel container, keeping the ambient temperature at 25 ℃ and the humidity less than 60%, adding 6 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 2 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 50% by weight of deionized water, aqueous dispersant and 50% by weight of gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion, stirring for 4min at a rotating speed of 300r/min, sequentially and slowly adding organic modified hectorite, aqueous silicon dioxide, aqueous polytetrafluoroethylene dispersoid and aqueous nano aluminum oxide dispersoid, stirring for 80min at a rotating speed of 1000r/min, testing the fineness by using a scraper finesse meter to be less than 10 mu m, pre-mixing 50% by weight of deionized water and diethylene glycol monobutyl ether, slowly adding the mixture, stirring for 10min at a rotating speed of 500r/min, slowly adding a mixture of benzophenone and hydroxycyclohexyl phenyl ketone, stirring for 4min at a rotating speed of 500r/min, slowly adding a polyether siloxane copolymer and a gas-phase-containing silicon dioxide polyether siloxane copolymer emulsion with the weight of 50% of the formula, stirring for 10min at a rotating speed of 500r/min, slowly adding an aqueous thickening agent, adjusting the viscosity KU value to 50-55, stirring for 10min at a rotating speed of 700r/min and at a temperature of 25 ℃, finally adding an ammonia neutralizing agent to adjust the pH value to 7.5-8, stirring for 15min at a rotating speed of 700r/min, cooling the coating at room temperature, detecting, filtering the coating twice by a 300-mesh filter screen, and packaging.
Example 2
An ABS substrate water-based matte wear-resistant UV varnish comprises the following components in percentage by weight: 50% of a 6 functional group aqueous polyurethane acrylate dispersion, 10% of a 2 functional group aqueous polyurethane acrylate dispersion, 1% of an aqueous dispersant, 4% of aqueous silica, 5% of an aqueous polytetrafluoroethylene wax dispersion, 5% of an aqueous nano-alumina dispersion, 0.2% of organically modified hectorite, 5% of diethylene glycol ethyl ether, 2% of a mixture of benzophenone and hydroxycyclohexyl phenyl ketone, 0.5% of a polyether siloxane copolymer, 0.2% of a gas phase silica-containing polyether siloxane copolymer emulsion, 1% of an aqueous thickener, 0.5% of N, N-dimethylethanolamine, and the balance being deionized water; wherein the water-based silicon dioxide is surface organic modified silicon dioxide matting powder with the average particle size of 4.2 mu m; the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm; the aqueous thickener is a high-shear compound low-shear polyether polyurethane associative rheological additive; the aqueous dispersant is a copolymer with pigment affinity groups; the ratio of benzophenone to hydroxycyclohexyl phenyl ketone in the mixture of benzophenone and hydroxycyclohexyl phenyl ketone is 1: 1. the formulation according to the examples was prepared in the following way: taking a clean stainless steel container, keeping the ambient temperature at 25 ℃ and the humidity less than 60%, adding 6 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 2 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 50% by weight of deionized water, aqueous dispersant and 50% by weight of gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion, stirring for 4min at a rotating speed of 300r/min, sequentially and slowly adding organic modified hectorite, aqueous silicon dioxide, aqueous polytetrafluoroethylene dispersoid and aqueous nano aluminum oxide dispersoid, stirring for 80min at a rotating speed of 1000r/min, testing the fineness by using a scraper finesse meter to be less than 10 mu m, pre-mixing 50% by weight of deionized water and diethylene glycol ethyl ether, slowly adding the mixture, stirring for 10min at a rotating speed of 500r/min, slowly adding a mixture of benzophenone and hydroxycyclohexyl phenyl ketone, stirring for 4min at a rotating speed of 500r/min, slowly adding a polyether siloxane copolymer and a gas-phase-containing silicon dioxide polyether siloxane copolymer emulsion with the weight of 50% of the formula, stirring for 10min at a rotating speed of 500r/min, slowly adding an aqueous thickening agent, adjusting the viscosity KU value to 50-55, stirring for 10min at a rotating speed of 700r/min and at a temperature of 25 ℃, finally adding an ammonia neutralizing agent to adjust the pH value to 7.5-8, stirring for 15min at a rotating speed of 700r/min, cooling the coating at room temperature, detecting, filtering the coating twice by a 300-mesh filter screen, and packaging.
Example 3
An ABS substrate water-based matte wear-resistant UV varnish comprises the following components in percentage by weight: 55% of 6 functional group aqueous polyurethane acrylate dispersion, 10% of 2 functional group aqueous polyurethane acrylate dispersion, 1% of aqueous dispersant, 4% of aqueous silica, 5% of aqueous polytetrafluoroethylene wax dispersion, 5% of aqueous nano-alumina dispersion, 0.2% of organic modified hectorite, 5% of dipropylene glycol methyl ether, 2% of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide dispersion, 0.5% of polyether siloxane copolymer, 0.2% of gas phase silicon dioxide-containing polyether siloxane copolymer emulsion, 1% of aqueous thickener, 0.5% of N, N-dimethylethanolamine, and the balance of deionized water; wherein the water-based silicon dioxide is surface organic modified silicon dioxide matting powder with the average particle size of 4.2 mu m; the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm; the aqueous thickener is a high-shear compound low-shear polyether polyurethane associative rheological additive; the aqueous dispersant is a copolymer having pigment affinity groups.
The formulation according to the examples was prepared in the following way: taking a clean stainless steel container, keeping the ambient temperature at 25 ℃ and the humidity less than 60%, adding 6 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 2 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at a rotating speed of 300r/min, slowly adding 50% by weight of deionized water, aqueous dispersant and 50% by weight of gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion, stirring for 4min at a rotating speed of 300r/min, sequentially and slowly adding organic modified hectorite, aqueous silicon dioxide, aqueous polytetrafluoroethylene dispersoid and aqueous nano aluminum oxide dispersoid, stirring for 80min at a rotating speed of 1000r/min, testing the fineness by using a scraper finesse meter to be less than 10 mu m, pre-mixing 50% by weight of deionized water and dipropylene glycol monomethyl ether, slowly adding the mixture, stirring for 10min at a rotating speed of 500r/min, slowly adding acyl phosphorus oxides, stirring for 4min at a rotating speed of 500r/min, slowly adding a polyether siloxane copolymer and a gas-phase-containing silicon dioxide polyether siloxane copolymer emulsion with the weight of 50% of the formula, stirring for 10min at a rotating speed of 500r/min, slowly adding an aqueous thickening agent, adjusting the viscosity KU value to 50-55, stirring for 10min at a rotating speed of 700r/min and a temperature of 25 ℃, finally adding an ammonia neutralizing agent, adjusting the pH value to 7.5-8, stirring for 15min at a rotating speed of 700r/min, cooling the coating at room temperature, detecting, filtering the coating with a 300-mesh filter screen twice, and packaging.
Example 4
An ABS substrate water-based matte wear-resistant UV varnish comprises the following components in percentage by weight: 60% of 6 functional group aqueous polyurethane acrylate dispersion, 10% of 2 functional group aqueous polyurethane acrylate dispersion, 1% of aqueous dispersant, 4% of aqueous silica, 5% of aqueous polytetrafluoroethylene wax dispersion, 5% of aqueous nano-alumina dispersion, 0.2% of organic modified hectorite, 5% of dipropylene glycol butyl ether, 2% of 2,4, 6-trimethylbenzoyl diphenyl phosphorus oxide dispersion, 0.5% of polyether siloxane copolymer, 0.2% of gas phase silicon dioxide-containing polyether siloxane copolymer emulsion, 1% of aqueous thickener, 0.5% of N, N-dimethylethanolamine, and the balance of deionized water; wherein the water-based silicon dioxide is surface organic modified silicon dioxide matting powder with the average particle size of 4.2 mu m; the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm; the aqueous thickener is a high-shear compound low-shear polyether polyurethane associative rheological additive; the aqueous dispersant is a copolymer having pigment affinity groups.
The formulation according to the examples was prepared in the following way: taking a clean stainless steel container, keeping the ambient temperature at 25 ℃ and the humidity less than 60%, adding 6 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at the rotating speed of 300r/min, slowly adding 2 functional aqueous polyurethane acrylic acid dispersoid, stirring for 4min at the rotating speed of 300r/min, slowly adding 50% by weight of deionized water, aqueous dispersant and 50% by weight of gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion, stirring for 4min at the rotating speed of 300r/min, sequentially and slowly adding organic modified hectorite, aqueous silicon dioxide, aqueous polytetrafluoroethylene dispersoid and aqueous nano aluminum oxide dispersoid, stirring for 80min at the rotating speed of 1000r/min, testing the fineness by using a scraper finesse meter to be less than 10 mu m, pre-mixing 50% by weight of deionized water and dipropylene glycol butyl ether, slowly adding the mixture, stirring for 10min at the rotating speed of 500r/min, slowly adding acyl phosphorus oxides, stirring for 4min at a rotating speed of 500r/min, slowly adding a polyether siloxane copolymer and a gas-phase-containing silicon dioxide polyether siloxane copolymer emulsion with the weight of 50% of the formula, stirring for 10min at a rotating speed of 500r/min, slowly adding an aqueous thickening agent, adjusting the viscosity KU value to 50-55, stirring for 10min at a rotating speed of 700r/min and a temperature of 25 ℃, finally adding an ammonia neutralizing agent, adjusting the pH value to 7.5-8, stirring for 15min at a rotating speed of 700r/min, cooling the coating at room temperature, detecting, filtering the coating with a 300-mesh filter screen twice, and packaging.
The ABS base material water-based matte wear-resistant UV varnish obtained by the above embodiment and the preparation method is sprayed on a cosmetic ABS base material and cured by ultraviolet light, and the performance parameters of the coating are shown in Table 1:
TABLE 1
Figure RE-GDA0003565297300000061

Claims (10)

1. The ABS substrate water-based matte wear-resistant UV varnish is characterized by comprising the following components in percentage by weight: 50-60% of 6-functional group aqueous polyurethane acrylate dispersoid, 10-20% of 2-functional group aqueous polyurethane acrylate dispersoid, 1-2% of aqueous dispersant, 3-5% of aqueous silicon dioxide, 5-10% of aqueous polytetrafluoroethylene wax dispersoid, 3-5% of aqueous nano aluminum oxide dispersoid, 0.2-0.5% of organic modified hectorite, 3-5% of film forming additive, 1-5% of photoinitiator, 0.5-1% of aqueous wetting agent, 0.2-0.5% of aqueous defoaming agent, 1-2% of aqueous thickening agent, 0.2-0.5% of ammonia neutralizer and the balance of deionized water.
2. The preparation method of the ABS substrate water-based matte wear-resistant UV varnish as claimed in claim 1, wherein the preparation method comprises the following steps: the mass ratio of the 6 functional group aqueous polyurethane acrylate dispersoid to the 2 functional group aqueous polyurethane acrylate dispersoid is as follows: (3-6): 1.
3. The ABS substrate water-based matte wear-resistant UV varnish according to claim 1, wherein: the water-based silicon dioxide is surface organic modified silicon dioxide matting powder with the average particle size of 4.2 mu m.
4. The ABS substrate water-based matte wear-resistant UV varnish according to claim 1, wherein: the aqueous nano-alumina dispersion is an alumina aqueous solution with the solid content of 30% and the average particle size of 80-100 nm.
5. The ABS substrate water-based matte wear-resistant UV varnish according to claim 1, wherein: the film-forming auxiliary agent is one or a mixture of several of diethylene glycol butyl ether, diethylene glycol ethyl ether, dipropylene glycol methyl ether, dipropylene glycol butyl ether and tripropylene glycol butyl ether.
6. The preparation method of the ABS substrate water-based matte wear-resistant UV varnish as claimed in claim 1, wherein the preparation method comprises the following steps: the photoinitiator is one or a mixture of benzophenone, hydroxycyclohexyl phenyl ketone and acyl phosphorus oxide.
7. The preparation method of the ABS substrate water-based matte wear-resistant UV varnish as claimed in claim 1, wherein the preparation method comprises the following steps: the aqueous wetting agent is a polyether siloxane copolymer; the aqueous defoaming agent is gas-phase silicon dioxide-containing polyether siloxane copolymer emulsion.
8. The preparation method of the ABS substrate water-based matte wear-resistant UV varnish as claimed in claim 1, wherein the preparation method comprises the following steps: the aqueous thickener is a high-shear compound low-shear polyether polyurethane associative rheological additive.
9. The preparation method of the ABS substrate water-based matte wear-resistant UV varnish as claimed in claim 1, wherein the preparation method comprises the following steps: the aqueous dispersant is a copolymer with pigment affinity groups.
10. The ABS substrate water-based matte wear-resistant UV varnish according to claim 1, wherein: the ammonia neutralizer adopts N, N-dimethylethanolamine.
CN202111507810.2A 2021-12-10 2021-12-10 ABS substrate water-based matte wear-resistant UV varnish Pending CN114410215A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116285648A (en) * 2023-03-14 2023-06-23 苏州市贝特利高分子材料股份有限公司 High-wear-resistance water-based matte UV varnish and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN107141913A (en) * 2017-04-27 2017-09-08 河北晨阳工贸集团有限公司 High abrasion, high rigidity keyboard water paint and preparation method
CN110437729A (en) * 2019-07-15 2019-11-12 深圳市美丽华科技股份有限公司 A kind of aqueous UV plastic coating and the preparation method and application thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107141913A (en) * 2017-04-27 2017-09-08 河北晨阳工贸集团有限公司 High abrasion, high rigidity keyboard water paint and preparation method
CN110437729A (en) * 2019-07-15 2019-11-12 深圳市美丽华科技股份有限公司 A kind of aqueous UV plastic coating and the preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116285648A (en) * 2023-03-14 2023-06-23 苏州市贝特利高分子材料股份有限公司 High-wear-resistance water-based matte UV varnish and preparation method thereof

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