CN108676488B - High-performance vacuum plating UV coating and preparation method thereof - Google Patents
High-performance vacuum plating UV coating and preparation method thereof Download PDFInfo
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- CN108676488B CN108676488B CN201810513667.XA CN201810513667A CN108676488B CN 108676488 B CN108676488 B CN 108676488B CN 201810513667 A CN201810513667 A CN 201810513667A CN 108676488 B CN108676488 B CN 108676488B
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention discloses a high-performance vacuum plating UV coating, which consists of three coatings, namely a primer, a middle paint and a finish paint, wherein the components of each coating are mixed according to the weight ratio (part), and the UV coating is prepared by the following steps: the proportion of the priming paint is 30-40 parts of macromolecular resin connecting material, 5-10 parts of active monomer, 0.2-0.3 part of flatting agent, 1.5-2 parts of photoinitiator and 55-65 parts of solvent; the Chinese lacquer is prepared from 30-40 parts of high molecular resin binder, 1.0-1.5 parts of adhesion promoter, 0.1-0.15 part of flatting agent, 0.5-0.8 part of photoinitiator and 60-70 parts of solvent; the proportion of the finish paint is 30-45 parts of macromolecular resin binder, 2-5 parts of active monomer, 0.2-0.3 part of flatting agent, 0.5-1.5 parts of photoinitiator, 0.3-1 part of adhesion promoter and 60-70 parts of solvent. The method has the advantages of high construction yield, production efficiency improvement, production cost reduction and good economic benefit.
Description
Technical Field
The invention relates to the technical field of new materials, in particular to a vacuum plating UV coating coated on a plastic shell of a mobile phone and a preparation method thereof.
Background
The vacuum coating technology is to deposit some kind of metal or metal compound onto the surface of material in vapor phase in vacuum environment, and belongs to the field of physical vapor deposition technology. Based on the technical characteristics, the vacuum plating UV coating mainly comprises ultraviolet curing resin, a monomer, an initiator, an adhesion promoter, a flatting agent, a solvent and the like, and is generally constructed by adopting a two-coating (primer and finish) or three-coating (primer, intermediate and finish) process according to different application division.
The existing vacuum plating UV coating has poor performance, vibration and wear resistance of a mobile phone shell can not reach 2 hours, the situation that the mobile phone shell is qualified after being subjected to a hundred-grid test for 0.5 hour after being boiled in water at 100 ℃ and is easy to discolor after being boiled in water is difficult to adapt to the high-performance requirements of mobile phone manufacturers because the selected materials are different, the system design and matching of a primer, a middle paint and a finish paint are not proper, and the main body resin is not properly selected.
Disclosure of Invention
The invention aims to provide a high-performance vacuum plating UV coating and a preparation method thereof, and the high-performance vacuum plating UV coating has excellent performances of high vibration, wear resistance, water boiling resistance for a super-long time and the like.
To solve the above technical problems, the present invention is achieved by the following technical solutions.
The high-performance vacuum plating UV coating is prepared by mixing the following three coatings of primer, intermediate coat and finish coat in parts by weight:
the proportion of the priming paint is 30-40 parts of macromolecular resin connecting material, 5-10 parts of active monomer, 0.2-0.3 part of flatting agent, 1.5-2 parts of photoinitiator and 55-65 parts of solvent;
the Chinese lacquer is prepared from 30-40 parts of high molecular resin binder, 1.0-1.5 parts of adhesion promoter, 0.1-0.15 part of flatting agent, 0.5-0.8 part of photoinitiator and 60-70 parts of solvent;
the proportion of the finish paint is 30-45 parts of macromolecular resin binder, 2-5 parts of active monomer, 0.2-0.3 part of flatting agent, 0.5-1.5 parts of photoinitiator, 0.3-1 part of adhesion promoter and 60-70 parts of solvent.
Wherein, the high molecular binder in the primer mixture ratio is aliphatic polycarbonate urethane acrylate resin.
Wherein the macromolecular connecting material in the intermediate paint proportion is solvent-based modified urethane acrylate resin.
Wherein the macromolecular connecting material in the finish paint proportion is nine-functional polyurethane acrylate resin.
Wherein, the leveling agent in the primer and intermediate paint proportion is an acrylate auxiliary agent, and the leveling agent in the finish paint proportion is a reactive organosilicon surface auxiliary agent.
Wherein the photoinitiator is 1-hydroxy-cyclohexyl-phenyl ketone.
Wherein, the adhesion promoter adopts methacrylate phosphate.
The primer is characterized in that the primer is prepared from three solvents, namely ethyl ester, butyl ester and methyl isobutyl ketone, wherein the solvent addition ratio is ethyl ester: butyl ester: methyl isobutyl ketone ═ 13-16: 24-28: 18-21;
the solvent in the Chinese lacquer proportioning is four solvents of cyclohexanone, butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether, and the solvent proportion is cyclohexanone: butyl ester: methyl isobutyl ketone: 10-12 of diethylene glycol monobutyl ether: 20-24: 20-24: 10-12;
the solvent in the finish paint is three solvents of ethyl ester, butyl ester and propylene glycol methyl ether acetate, and the solvent ratio is ethyl ester: butyl ester: propylene glycol methyl ether acetate 16-18: 26-30: 18-22.
Wherein the active monomer is (3) ethoxylated trimethylolpropane triacrylate.
The preparation method of the high-performance vacuum plating UV coating comprises the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator and a leveling agent while dispersing at a low speed, then adding butyl ester in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding ethyl ester and methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a 800-mesh filter bag after the primer coating is qualified, and packaging;
for the intermediate paint in the UV coating, the preparation method is as follows: firstly adding a macromolecular resin binder into a stirrable dispersion cylinder with a certain volume, starting stirring, supplementing an adhesion promoter, a photoinitiator and a leveling agent while dispersing at a low speed, then adding cyclohexanone in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a 800-mesh filter bag after the paint coating is qualified, and packaging;
the preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator, a flatting agent and an adhesion promoter while dispersing at a low speed, and then adding butyl ester in a mixed solvent, wherein the rotating speed is 1000 +/-50 revolutions per minute, and dispersing for 30 minutes to completely and uniformly disperse the materials; then adding ethyl ester and propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the primer coating is qualified, and packaging.
The invention has the following beneficial effects:
the invention has the advantages that: firstly, the primer is flexible and good in plating property, the primer has excellent adhesion to a plating layer and good coloring property, and the finish paint has high hardness, good wear resistance and water boiling resistance. The primer, the intermediate paint and the finish paint are matched to use, so that an excellent performance effect can be obtained; secondly, the VOC content meets the requirement of the environmental protection standard of the mobile phone coating industry, and the energy is saved and the environment is protected; thirdly, the spraying constructability is strong, the construction yield is high, the production efficiency is improved, the production cost is reduced, and the economic benefit is good.
By adopting the vacuum plating UV coating, the shell of the mobile phone has the functions of vibration wear resistance reaching 3 hours without wear, no bubbling after being boiled in water at 100 ℃ for 1 hour, no peeling in a Baige test, high performance requirement of mobile phone manufacturers and production cost reduction.
Detailed Description
The core idea of the invention is as follows: according to the invention, through the optimized design of each coating component of the vacuum plating UV coating, the primer selects aliphatic polycarbonate type polyurethane acrylate resin as main body resin, the aim is to have better compatibility with a shell PC material, and a flexible low Tg value monomer is matched, so that the primer can provide enough flexibility, excellent plating property and excellent boiling resistance after UV curing; the intermediate coat adopts a base material with good adhesive force to metal indium and aluminum, and aims to ensure that the intermediate coat has good adhesive force to plating indium and aluminum, and the main resin of the intermediate coat requires excellent coloring property and can endow the plating indium and the plating aluminum with different metal colors; the finish paint adopts high-class polyurethane acrylate resin, and adopts methacrylate phosphate as an adhesion promoter to improve the boiling resistance. By optimizing the key material of each coating, the application effect of each coating is ensured, and the bonding and recoating performance between the coatings are fully considered.
In the invention, the primer adopts aliphatic polycarbonate urethane acrylate resin (Boxing B-221) as main resin, aiming at better compatibility with a shell PC material, the monomer adopts (3) ethoxylated trimethylolpropane triacrylate with low Tg value as a monomer, and the primer can provide enough flexibility, excellent plating property and excellent boiling resistance after being cured by UV;
in the invention, the intermediate coat adopts solvent type modified urethane acrylate resin (Changxing 6175-3) with good adhesive force to metal indium and aluminum, the resin has excellent water resistance, good adhesive force to metal and excellent coloring performance, can be closely adhered to a metal coating and endows the coating with different metal colors to indium and aluminum, and has excellent boiling resistance.
In the invention, nine-functional polyurethane acrylate resin (Dongguan Shanghai 6090D) is adopted as the finish paint, so that the wear resistance is improved, and a certain amount of methacrylate phosphate adhesion promoter (Shanghai Yongshi R-9107) is matched to improve the boiling resistance.
A vacuum plating UV coating is composed of three coatings of a primer, a middle paint and a finish, and the components of each coating are mixed according to the weight ratio (except for special indication, the following components are mixed according to the weight ratio); wherein the proportion of the primer is 30-40 parts of macromolecular resin binder, 5-10 parts of active monomer, 0.2-0.3 part of flatting agent, 1.5-2 parts of photoinitiator and 55-65 parts of solvent.
In the primer mixture, the high molecular binder is aliphatic polycarbonate urethane acrylate resin, and the trade name of the high molecular binder is Boxing B-221.
In the primer mixture ratio of the invention, the activated monomer is preferably (3) ethoxylated trimethylolpropane triacrylate.
In the primer mixture ratio, the leveling agent is an acrylate auxiliary agent with the trade name of BYK-358N.
In the primer mixture of the invention, the photoinitiator 184 (chemical component 1-hydroxy-cyclohexyl-phenyl ketone) is used.
In the primer mixture, the solvent is ethyl ester, butyl ester and methyl isobutyl ketone, and the solvent addition proportion is ethyl ester: butyl ester: methyl isobutyl ketone ═ 13-16: 24-28: 18-21.
For the primer in the UV coating, the preparation method comprises the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator and a leveling agent while dispersing at a low speed, then adding butyl ester in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding ethyl ester and methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a 800-mesh filter bag after the primer coating is qualified, and packaging.
TABLE 1 primer test standards
| Inspection item | Test standard | Inspection method | Test results | Test execution criteria |
| Environmentally relevant substances | Meets the ROHS requirement | ROHS tester | Conform to | GB/T26125-2011 |
| Drying | 55℃×5-7min/700-900mj/cm2 | Constant temperature oven/light curing machine | Conform to | HG/T3655-2012 |
| Appearance of coating film | Smooth, flat, high leveling | Visualization | Uniformity | GB1729-1979 |
| Colour(s) | Colorless, clear and transparent | Visual or colour difference meter | Uniformity | GB11186-1989 |
| Degree of gloss | 90±5° | 60-degree gloss meter | 89° | GB/T1743-1979 |
| Fineness of fineness | ＜5um | Scraper blade fineness gauge | Uniformity | GB/T6753.1-2007 |
| Viscosity of the oil | 10.5±0.3S | 2# outflow cup for rock field, 25 deg.C | 10.5S | GB/T6753.4-1998 |
| Adhesion force | ≥4B | 3M adhesive tape and hundred-grid knife | 5B | GB/T5210-2006 |
| Hardness of | HB-2H | Mitsubishi pencil | H | GB/T6739-2006 |
| Solid content | 40±5％ | Constant temperature oven | 41％ | GB/T2793-1995 |
TABLE 1
The Chinese lacquer is prepared with polymer resin as material 30-40 weight portions, adhesion promoter 1.0-1.5 weight portions, leveling agent 0.1-0.15 weight portions, photoinitiator 0.5-0.8 weight portions, and solvent 60-70 weight portions.
In the paint proportion, the high-molecular binder is solvent-type modified polyurethane acrylate resin with the trade name of Changxing 6175-3.
In the paint composition, the adhesion promoter is preferably methacrylate phosphate with the trade name of Shanghai Yongshi R-9107.
In the paint mixture ratio of the invention, the leveling agent is an acrylate auxiliary agent with the trade name of BYK-358N.
In the paint formulation of the present invention, the photoinitiator 184 (chemical component 1-hydroxy-cyclohexyl-phenyl ketone) is used.
In the paint of the invention, the solvent is four solvents of cyclohexanone, butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether, and the solvent proportion is cyclohexanone: butyl ester: methyl isobutyl ketone: 10-12 of diethylene glycol monobutyl ether: 20-24: 20-24: 10-12.
For the intermediate paint in the UV coating, the preparation method is as follows: firstly adding a macromolecular resin binder into a stirrable dispersion cylinder with a certain volume, starting stirring, supplementing an adhesion promoter, a photoinitiator and a leveling agent while dispersing at a low speed, then adding cyclohexanone in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a 800-mesh filter bag after the paint coating is qualified, and packaging.
TABLE 2 detection criteria for Chinese paints
| Inspection item | Test standard | Inspection method | Test results | Test execution criteria |
| Environmentally relevant substances | Meets the ROHS requirement | ROHS tester | Conform to | GB/T26125-2011 |
| Drying | 55℃×5-7min/400-600mj/cm2 | Constant temperature oven/light curing machine | Conform to | HG/T3655-2012 |
| Appearance of coating film | Smooth, flat, high leveling | Visualization | Uniformity | GB1729-1979 |
| Colour(s) | Clear and transparent | Visual or colour difference meter | Uniformity | GB11186-1989 |
| Degree of gloss | ＞90° | 60-degree gloss meter | 92° | GB/T1743-1979 |
| Fineness of fineness | ＜5um | Scraper blade fineness gauge | Uniformity | GB/T6753.1-2007 |
| Viscosity of the oil | 9.5±0.3S | 2# outflow cup for rock field, 25 deg.C | 9.5S | GB/T6753.4-1998 |
| Adhesion force | ≥4B | 3M adhesive tape and hundred-grid knife | 5B | GB/T5210-2006 |
| Hardness of | HB-2H | Mitsubishi pencil | H | GB/T6739-2006 |
| Solid content | 35±5％ | Constant temperature oven | 35％ | GB/T2793-1995 |
TABLE 2
The proportion of the finish paint is 30-45 parts of macromolecular resin binder, 2-5 parts of active monomer, 0.2-0.3 part of flatting agent, 0.5-1.5 parts of photoinitiator, 0.3-1 part of adhesion promoter and 60-70 parts of solvent.
In the finish paint proportion, the high polymer binder is nine-functional polyurethane acrylate resin with the trade name of UV-6090D on Dongguan well.
In the proportion of the finish paint, the reactive monomer is preferably (3) ethoxylated trimethylolpropane triacrylate.
In the finish paint proportion, the leveling agent is a reactive organosilicon surface auxiliary agent with the trade name of BYK-371.
In the proportion of the finish paint, the photoinitiator 184 (chemical component 1-hydroxy-cyclohexyl-phenyl ketone) is adopted.
In the finish paint of the invention, the adhesion promoter is preferably methacrylate phosphate with the trade name of Shanghai Yongshi R-9107.
In the proportion of the finish paint, the solvent is three solvents of ethyl ester, butyl ester and propylene glycol methyl ether acetate, and the solvent proportion is that the ethyl ester: butyl ester: propylene glycol methyl ether acetate 16-18: 26-30: 18-22.
The preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator, a flatting agent and an adhesion promoter while dispersing at a low speed, and then adding butyl ester in a mixed solvent, wherein the rotating speed is 1000 +/-50 revolutions per minute, and dispersing for 30 minutes to completely and uniformly disperse the materials; then adding ethyl ester and propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the primer coating is qualified, and packaging.
TABLE 3 detection criteria for topcoat
TABLE 3
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the present invention, the primer is specifically exemplified as follows:
primer example one
For the primer in the UV coating, the preparation method comprises the following steps: adding 30 parts of aliphatic polycarbonate type polyurethane acrylate resin (trade name is Boxing B-221) and 5 parts of ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume in sequence according to the weight ratio, starting stirring, supplementing 1841.5 parts of photoinitiator and 0.2 part of leveling agent acrylate (trade name is BYK-358N) while dispersing at low speed, then adding 24 parts of butyl ester in a mixed solvent, and dispersing for 30 minutes at the rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding 13 parts of ethyl ester and 18 parts of methyl isobutyl ketone in the mixed solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Primer example two
For the primer in the UV coating, the preparation method comprises the following steps: adding 35 parts of aliphatic polycarbonate urethane acrylate resin (trade name is Boxing B-221) and 8 parts of ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume in sequence according to the weight ratio, starting stirring, supplementing 1841.5 parts of photoinitiator and 0.3 part of leveling agent acrylate (trade name is BYK-358N) while dispersing at low speed, then adding 24 parts of butyl ester in a mixed solvent, and dispersing for 30 minutes at the rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding 15 parts of ethyl ester and 18 parts of methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Primer example three
For the primer in the UV coating, the preparation method comprises the following steps: adding 40 parts of aliphatic polycarbonate urethane acrylate resin (trade name is bosch B-221) and 8 parts of ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume in sequence according to the weight ratio, starting stirring, supplementing 1842 parts of photoinitiator and 0.2 part of leveling agent acrylate (trade name is BYK-358N) while dispersing at low speed, then adding 28 parts of butyl ester in a mixed solvent, and dispersing for 30 minutes at the rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding 16 parts of ethyl ester and 21 parts of methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Primer example four
For the primer in the UV coating, the preparation method comprises the following steps: adding 40 parts of aliphatic polycarbonate type polyurethane acrylate resin (trade name is Boxing B-221) and 10 parts of (3) ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume in sequence according to the weight ratio, starting stirring, supplementing 1841.5 parts of photoinitiator and 0.3 part of flatting agent acrylate (trade name is BYK-358N) while dispersing at low speed, then adding 26 parts of butyl ester in a mixed solvent, wherein the rotating speed is 1000 +/-50 revolutions per minute, and dispersing for 30 minutes to completely and uniformly disperse the materials; then adding 16 parts of ethyl ester and 21 parts of methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
The test results are shown in Table 4
TABLE 4
Specific examples of the medium lacquer in the present invention are as follows:
paint example one
For the intermediate paint in the UV coating, the preparation method is as follows: firstly, 30 parts of solvent type modified urethane acrylate resin (with the trade name of Changxing chemical 6175-3) is added into a stirring dispersion cylinder with a certain volume, stirring is started, 1.0 part of adhesion promoter methacrylate phosphate (with the trade name of Shanghai Yongquan R-9107), 1840.5 parts of photoinitiator and 0.1 part of leveling agent acrylate auxiliary agent (with the trade name of BYK-358N) are added while low-speed dispersion is carried out, then 10 parts of cyclohexanone in a mixed solvent is added, the rotating speed is 1000 +/-50 revolutions per minute, and the dispersion is carried out for 30 minutes, so that the materials are completely uniformly dispersed; then adding 20 parts of butyl ester, 20 parts of methyl isobutyl ketone and 10 parts of diethylene glycol butyl ether in the solvent, stirring for 5-8 minutes at the speed of 600 +/-50 revolutions per minute, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a filter bag with 800 meshes after the paint coating is qualified, and packaging.
Middle coat example two
For the intermediate paint in the UV coating, the preparation method is as follows: firstly, 35 parts of solvent type modified urethane acrylate resin (with the trade name of Youxing chemical 6175-3) is added into a stirring dispersion cylinder with a certain volume, stirring is started, 1.2 parts of adhesion promoter methacrylate phosphate (with the trade name of Shanghai Yongquan R-9107), 1840.5 parts of photoinitiator and 0.1 part of leveling agent acrylate auxiliary agent (with the trade name of BYK-358N) are added while low-speed dispersion is carried out, then 10 parts of cyclohexanone in a mixed solvent is added, the rotating speed is 1000 +/-50 revolutions per minute, and the dispersion is carried out for 30 minutes, so that the materials are completely uniformly dispersed; then 22 parts of butyl ester, 20 parts of methyl isobutyl ketone and 12 parts of diethylene glycol butyl ether in the solvent are added, the dispersion is stopped after stirring for 5-8 minutes at the speed of 600 +/-50 revolutions per minute, the viscosity and other items of the paint coating are detected, and the paint coating is filtered by a filter bag with 800 meshes and then packaged after being qualified.
Middle paint example III
For the intermediate paint in the UV coating, the preparation method is as follows: adding 38 parts of solvent-type modified polyurethane acrylate resin (trade name: Changxing chemical 6175-3) into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing 1.2 parts of adhesion promoter methacrylate phosphate (trade name: Shanghai Yongji R-9107), 1840.8 parts of photoinitiator and 0.15 part of leveling agent acrylate auxiliary agent (trade name: BYK-358N) while dispersing at low speed, then adding 10 parts of cyclohexanone in a mixed solvent, and dispersing for 30 minutes at the rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding 24 parts of butyl ester, 22 parts of methyl isobutyl ketone and 12 parts of diethylene glycol butyl ether in the solvent, stirring for 5-8 minutes at the speed of 600 +/-50 revolutions per minute, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a filter bag with 800 meshes after the paint coating is qualified, and packaging.
Paint example four
For the intermediate paint in the UV coating, the preparation method is as follows: 40 parts of solvent-type modified polyurethane acrylate resin (with the trade name of Youxing chemical 6175-3) is firstly added into a stirring dispersion cylinder with a certain volume, stirring is started, 1.5 parts of adhesion promoter methacrylate phosphate (with the trade name of Shanghai Yongquan R-9107), 1840.8 parts of photoinitiator and 0.15 part of leveling agent acrylate auxiliary agent (with the trade name of BYK-358N) are added while low-speed dispersion is carried out, then 12 parts of cyclohexanone in a mixed solvent is added, the rotating speed is 1000 +/-50 revolutions per minute, and the dispersion is carried out for 30 minutes, so that the materials are completely uniformly dispersed; then adding 24 parts of butyl ester, 24 parts of methyl isobutyl ketone and 12 parts of diethylene glycol butyl ether in the solvent, stirring for 5-8 minutes at the speed of 600 +/-50 revolutions per minute, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a filter bag with 800 meshes after the paint coating is qualified, and packaging.
The test results are shown in Table 5
TABLE 5
In the invention, the specific examples of the finish paint are as follows:
finish paint example one
The preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding 30 parts of nine-functional polyurethane acrylate resin (UV-6090D on Dongguan well) and 2 parts of activated monomer (3) ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing 1840.5 parts of photoinitiator, 0.2 part of leveling agent reactive organosilicon surface additive (BYK-371) and 0.3 part of adhesion promoter methacrylate phosphate (R-9107 on Shanghai province), adding 26 parts of butyl ester in a mixed solvent, rotating at 1000 +/-50 revolutions per minute, dispersing for 30 minutes, and completely and uniformly dispersing the materials; then adding 16 parts of ethyl ester and 18 parts of propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Topcoat example two
The preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding 35 parts of nine-functional polyurethane acrylate resin (UV-6090D on Dongguan well) and 3 parts of activated monomer (3) ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume, starting stirring, adding 1840.8 parts of photoinitiator, 0.2 part of leveling agent reactive organosilicon surface additive (BYK-371) and 0.5 part of adhesion promoter methacrylate phosphate (R-9107 on Shanghai province), adding 27 parts of butyl ester in a mixed solvent, rotating at 1000 +/-50 revolutions per minute, dispersing for 30 minutes, and completely and uniformly dispersing the materials; then adding 16 parts of ethyl ester and 20 parts of propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Finish paint example three
The preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding 40 parts of nine-functional polyurethane acrylate resin (UV-6090D on Dongguan well) and 4 parts of activated monomer (3) ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume, starting stirring, adding 1841.0 parts of photoinitiator, 0.3 part of leveling agent reactive organosilicon surface additive (BYK-371) and 0.8 part of adhesion promoter methacrylate phosphate (R-9107 on Shanghai province), adding 30 parts of butyl ester in a mixed solvent, rotating at 1000 +/-50 revolutions per minute, dispersing for 30 minutes, and completely and uniformly dispersing the materials; then adding 16 parts of ethyl ester and 18 parts of propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the viscosity and other items are qualified, and packaging.
Topcoat example four
The preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding 45 parts of nine-functional polyurethane acrylate resin (UV-6090D on Dongguan well) and 5 parts of activated monomer (3) ethoxylated trimethylolpropane triacrylate into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing 1841.5 parts of photoinitiator, 0.3 part of leveling agent reactive organosilicon surface additive (BYK-371) and 1.0 part of adhesion promoter methacrylate phosphate (R-9107 on Shanghai province), and then adding 30 parts of butyl ester in a mixed solvent, wherein the rotating speed is 1000 +/-50 revolutions per minute, and dispersing for 30 minutes to completely and uniformly disperse the materials; then 18 parts of ethyl ester and 22 parts of propylene glycol methyl ether acetate in the solvent are added, the mixture is stirred for 5 to 8 minutes at the speed of 600 +/-50 revolutions per minute, the dispersion is stopped, the viscosity and other items of the primer coating are detected, and the primer coating is filtered by a filter bag with 800 meshes and then packaged after being qualified.
The test results are shown in table 6:
TABLE 6
The proportions of the components can be modified, tested and modulated within the range according to the requirements of printed products, so as to meet the printing requirements of the products.
In summary, the above-mentioned embodiments are only for describing several embodiments of the present invention, and do not represent all the ways to implement the present invention, and all the technical solutions adopting equivalent alternatives or equivalent variations fall within the protection scope of the present invention.
The high-performance vacuum plating UV coating and the preparation method thereof provided by the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in the present document by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. The high-performance vacuum plating UV coating is characterized by consisting of three coatings, namely a primer, a middle paint and a finish paint, wherein the three coatings are mixed according to the weight ratio, and the coating is prepared by mixing the following components:
the proportion of the priming paint is 30-40 parts of macromolecular resin connecting material, 5-10 parts of active monomer, 0.2-0.3 part of flatting agent, 1.5-2 parts of photoinitiator and 55-65 parts of solvent;
the Chinese lacquer is prepared from 30-40 parts of high molecular resin binder, 1.0-1.5 parts of adhesion promoter, 0.1-0.15 part of flatting agent, 0.5-0.8 part of photoinitiator and 60-70 parts of solvent;
the proportion of the finish paint is 30-45 parts of macromolecular resin connecting material, 2-5 parts of active monomer, 0.2-0.3 part of flatting agent, 0.5-1.5 parts of photoinitiator, 0.3-1 part of adhesion promoter and 60-70 parts of solvent;
the high molecular binder in the primer mixture ratio is aliphatic polycarbonate urethane acrylate resin;
the polymer binder in the intermediate paint proportion is solvent-based modified urethane acrylate resin;
the high molecular binder in the finish paint is nine-functional polyurethane acrylate resin;
the active monomer is (3) ethoxylated trimethylolpropane triacrylate.
2. The high performance vacuum plating UV coating of claim 1 wherein: the leveling agent in the primer and intermediate paint proportion is an acrylate auxiliary agent, and the leveling agent in the finish paint proportion is a reactive organic silicon surface auxiliary agent.
3. The high performance vacuum plating UV coating of claim 1 wherein: the photoinitiator is 1-hydroxy-cyclohexyl-phenyl ketone.
4. The high performance vacuum plating UV coating of claim 1 wherein: the adhesion promoter is methacrylate phosphate.
5. The high performance vacuum plating UV coating of claim 1 wherein: the primer is characterized in that the solvent in the primer mixture is ethyl ester, butyl ester and methyl isobutyl ketone, and the solvent addition proportion is ethyl ester: butyl ester: methyl isobutyl ketone ═ 13-16: 24-28: 18-21;
the solvent in the Chinese lacquer proportioning is four solvents of cyclohexanone, butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether, and the solvent proportion is cyclohexanone: butyl ester: methyl isobutyl ketone: 10-12 of diethylene glycol monobutyl ether: 20-24: 20-24: 10-12;
the solvent in the finish paint is three solvents of ethyl ester, butyl ester and propylene glycol methyl ether acetate, and the solvent ratio is ethyl ester: butyl ester: propylene glycol methyl ether acetate 16-18: 26-30: 18-22.
6. The preparation method of the high-performance vacuum plating UV coating as claimed in claim 1, wherein the primer in the UV coating is prepared by the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator and a leveling agent while dispersing at a low speed, then adding butyl ester in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding ethyl ester and methyl isobutyl ketone in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a 800-mesh filter bag after the primer coating is qualified, and packaging;
for the intermediate paint in the UV coating, the preparation method is as follows: in a stirring dispersion cylinder with a certain volume, firstly adding a macromolecular resin binder, starting stirring, supplementing an adhesion promoter, a photoinitiator and a flatting agent while dispersing at a low speed, then adding cyclohexanone in a mixed solvent, and dispersing for 30 minutes at a rotating speed of 1000 +/-50 revolutions per minute to completely and uniformly disperse the materials; then adding butyl ester, methyl isobutyl ketone and diethylene glycol butyl ether in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the paint coating, filtering by using a 800-mesh filter bag after the paint coating is qualified, and packaging;
the preparation method of the finishing coat in the UV coating comprises the following steps: sequentially adding a macromolecular resin binder and an active monomer into a stirring dispersion cylinder with a certain volume, starting stirring, supplementing a photoinitiator, a flatting agent and an adhesion promoter while dispersing at a low speed, and then adding butyl ester in a mixed solvent, wherein the rotating speed is 1000 +/-50 revolutions per minute, and dispersing for 30 minutes to completely and uniformly disperse the materials; then adding ethyl ester and propylene glycol methyl ether acetate in the solvent, stirring at the speed of 600 +/-50 revolutions per minute for 5-8 minutes, stopping dispersing, detecting the viscosity and other items of the primer coating, filtering by using a filter bag with 800 meshes after the primer coating is qualified, and packaging.
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