Wear-resistant anti-dazzle curing coating and preparation method thereof

Abstract

The invention provides a wear-resistant anti-dazzle photocureable coating and a preparation method thereof, and relates to the technical field of photocureable coatings, the wear-resistant anti-dazzle photocureable coating comprises, by mass, 25-80 parts of photosensitive resin, 1-5 parts of a photosensitizer, 2-20 parts of an active diluent, 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler, the photosensitive resin is a mixture resin of a fluorosilicone modified acrylate polymer with the functionality of 6-15 and an acrylate polymer with the functionality of 2-4 according to the ratio of 3: 1, and the filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles according to the ratio of 10: 3: 3: 1; according to the photocureable coating, the wear resistance of the coating can be effectively improved by adding the aluminum sulfate and the sodium polycarbamate into the filler, and the anti-glare performance of the coating can be effectively improved by adding the hydrophobic silicon dioxide particles and the carbon black particles into the filler.

Description

Technical Field

[0001] The invention relates to the technical field of photocurable coatings, and in particular to a wear-resistant anti-glare photocurable coating and a preparation method thereof. Background Art

[0002] Photocurable coatings are coatings that use light to initiate polymerization reactions to cure quickly. It mainly uses photosensitizers to initiate a curing reaction in monomers, oligomers or polymer matrices under the irradiation of ultraviolet light or visible light to form a solid coating. This technology is highly efficient, widely adaptable, economical, energy-saving and environmentally friendly. The application field of photocurable coatings is very wide.

[0003] With the popularization of electronic display devices and the development of smart cities and smart wearables, light-curing coatings are widely used in display panel fields such as vehicle display panels, electronic equipment display panels, and outdoor electronic advertising screens. However, traditional light-curing coatings do not have anti-glare capabilities, and are easily glaring to users when used in the display panel field. In addition, due to the poor wear resistance of light-curing coatings, they cannot provide good protection for display panels. Summary of the invention

[0004] The purpose of the present invention is to solve the technical shortcomings of the conventional photocurable coatings in the prior art that are easily dazzled when used in the field of display panels and cannot provide good protection for the display panels.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a wear-resistant anti-glare curing coating, comprising, by weight, 25-80 parts of a photosensitive resin, 1-5 parts of a photosensitizer, 2-20 parts of a reactive diluent, 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon modified acrylate polymer with a functionality of 6-15 and an acrylate polymer with a functionality of 2-4, and the ratio is 3:1. The viscosity of the fluorine-silicon modified acrylate polymer at 60° C. is 500cps-4500cps, and the viscosity of the acrylate polymer at 60° C. is 1300cps-4500cps; The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles, and carbon black particles, and the ratio is 10:3:3:1.

[0006] In at least some embodiments, the photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:1.

[0007] In at least some embodiments, the reactive diluent is a mixture of a monofunctional reactive diluent and a multifunctional reactive diluent in a ratio of 3:1.

[0008] In at least some embodiments, the monofunctional reactive diluent is at least one of isobornyl acrylate, acryloylmorpholine, and 4-tert-butylcyclohexyl acrylate; the multifunctional reactive diluent is at least one of 1,6-hexanediol diacrylate, tripropylene glycol diacrylate, and neopentyl glycol diacrylate.

[0009] In at least some embodiments, the catalyst is any one of a boron trifluoride solution, an amine solution, and a metal soap solution.

[0010] In at least some embodiments, the pigment is any one of the azo pigments.

[0011] A method for preparing a wear-resistant anti-glare cured coating comprises the following steps: a: dissolving 25-80 parts of a photosensitive resin and 2-20 parts of a reactive diluent in a solvent, and mixing them at a speed of 300 rpm to 1000 rpm to obtain a first mixture; b: adding 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler to the first mixture, and mixing at a rotation speed of 2000 rpm-10000 rpm to obtain a second mixture; c: Add 1-5 parts of the photosensitizer to the second mixture, and mix at a rotation speed of 1000 rpm-2000 rpm to obtain a coating.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are: By adding aluminum sulfate and sodium polycarbamate to the filler, the wear resistance of the light-curing coating can be effectively improved, and the wear resistance level is increased by 2-3 degrees. By adding hydrophobic silica particles and carbon black particles to the filler, the anti-glare performance of the coating can be effectively improved, and the anti-glare capability is UGR≤10. DETAILED DESCRIPTION

[0013] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0014] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0015] To this end, the embodiment of the present invention provides a wear-resistant anti-glare curing coating, which includes, by weight, 25-80 parts of a photosensitive resin, 1-5 parts of a photosensitizer, 2-20 parts of a reactive diluent, 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon modified acrylate polymer with a functionality of 6-15 and an acrylate polymer with a functionality of 2-4, and the ratio is 3:1. The viscosity of the fluorine-silicon modified acrylate polymer at 60° C. is 500cps-4500cps, and the viscosity of the acrylate polymer at 60° C. is 1300cps-4500cps; The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles in a ratio of 10:3:3:1.

[0016] The photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:1.

[0017] The active diluent is a mixture of a monofunctional active diluent and a multifunctional active diluent in a ratio of 3:1.

[0018] The monofunctional active diluent is at least one of isobornyl acrylate, acryloyl morpholine, and 4-tert-butyl cyclohexyl acrylate; the multifunctional active diluent is at least one of 1,6-hexanediol diacrylate, tripropylene glycol diacrylate, and neopentyl glycol diacrylate.

[0019] The catalyst is any one of a boron trifluoride solution, an amine solution, and a metal soap solution.

[0020] The pigment is any one of azo pigments.

[0021] A method for preparing a wear-resistant anti-glare cured coating comprises the following steps: a: dissolving 25-80 parts of a photosensitive resin and 2-20 parts of a reactive diluent in a solvent, and mixing them at a speed of 300 rpm to 1000 rpm to obtain a first mixture; b: adding 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler to the first mixture, and mixing at a rotation speed of 2000 rpm-10000 rpm to obtain a second mixture; c: Add 1-5 parts of the photosensitizer to the second mixture, and mix at a rotation speed of 1000 rpm-2000 rpm to obtain a coating.

[0022] Example 1 A wear-resistant anti-glare curing coating comprises, by weight, 25 parts of a photosensitive resin, 1 part of a photosensitizer, 2 parts of a reactive diluent, 20 parts of a catalyst, 2 parts of a pigment, and 10 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon-modified acrylate polymer with a functionality of 6 and an acrylate polymer with a functionality of 2 in a ratio of 3:1, the fluorine-silicon-modified acrylate polymer has a viscosity of 500 cps at 60° C., and the acrylate polymer has a viscosity of 1300 cps at 60° C.; The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles in a ratio of 10:3:3:1.

[0023] The photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:1.

[0024] The active diluent is a mixture of a monofunctional active diluent and a multifunctional active diluent in a ratio of 3:1.

[0025] The monofunctional active diluent is isobornyl acrylate; and the multifunctional active diluent is 1,6-hexanediol diacrylate.

[0026] The catalyst is a boron trifluoride solution.

[0027] The pigment is benzidine yellow G.

[0028] A method for preparing a wear-resistant anti-glare cured coating comprises the following steps: a: dissolving 25 parts of a photosensitive resin and 2 parts of a reactive diluent in 50 parts of a solvent, and mixing them at a speed of 300 rpm to obtain a first mixture; b: adding 20 parts of the catalyst, 5 parts of the pigment, and 10 parts of the filler to the first mixture, and mixing at a rotation speed of 2000 rpm to obtain a second mixture; c: Add 1 part of the photosensitizer to the second mixture, and mix at a rotation speed of 1000 rpm to obtain a coating.

[0029] Example 2 A wear-resistant anti-glare curing coating, comprising, by weight, 52 parts of a photosensitive resin, 3 parts of a photosensitizer, 11 parts of a reactive diluent, 30 parts of a catalyst, 15 parts of a pigment, and 15 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon-modified acrylate polymer with a functionality of 10 and an acrylate polymer with a functionality of 3, and the ratio is 3:1, the viscosity of the fluorine-silicon-modified acrylate polymer at 60° C. is 2500 cps, and the viscosity of the acrylate polymer at 60° C. is 2500 cps; The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles in a ratio of 10:3:3:1.

[0030] The photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:1.

[0031] The active diluent is a mixture of a monofunctional active diluent and a multifunctional active diluent in a ratio of 3:1.

[0032] The monofunctional active diluent is acryloylmorpholine; the multifunctional active diluent is tripropylene glycol diacrylate.

[0033] The catalyst is an amine solution.

[0034] The pigment is golden red.

[0035] A method for preparing a wear-resistant anti-glare cured coating comprises the following steps: a: dissolving 52 parts of a photosensitive resin and 11 parts of a reactive diluent in 50 parts of a solvent, and mixing them at a speed of 650 rpm to obtain a first mixture; b: adding 30 parts of the catalyst, 7 parts of the pigment, and 30 parts of the filler to the first mixture, and mixing at a rotation speed of 6000 rpm to obtain a second mixture; c: Add 3 parts of the photosensitizer into the second mixture and mix at a rotation speed of 1500 rpm to obtain a coating.

[0036] Example 3 A wear-resistant anti-glare curing coating comprises, by weight, 80 parts of a photosensitive resin, 5 parts of a photosensitizer, 20 parts of a reactive diluent, 40 parts of a catalyst, 10 parts of a pigment, and 20 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon-modified acrylate polymer with a functionality of 15 and an acrylate polymer with a functionality of 4, and the ratio is 3:1. The viscosity of the fluorine-silicon-modified acrylate polymer at 60° C. is 4500 cps, and the viscosity of the acrylate polymer at 60° C. is 4500 cps. The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles in a ratio of 10:3:3:1.

[0037] The photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:1.

[0038] The active diluent is a mixture of a monofunctional active diluent and a multifunctional active diluent in a ratio of 3:1.

[0039] The monofunctional active diluent is 4-tert-butyl cyclohexyl acrylate; the multifunctional active diluent is neopentyl glycol diacrylate.

[0040] The catalyst is a metal soap solution.

[0041] The pigment is Permanent Orange RN.

[0042] A method for preparing a wear-resistant anti-glare cured coating comprises the following steps: a: dissolving 80 parts of a photosensitive resin and 20 parts of a reactive diluent in 50 parts of a solvent, and mixing them at a speed of 1000 rpm to obtain a first mixture; b: adding 40 parts of the catalyst, 10 parts of the pigment, and 20 parts of the filler to the first mixture, and mixing at a rotation speed of 10000 rpm to obtain a second mixture; c: Add 5 parts of the photosensitizer to the second mixture, and mix at a rotation speed of 2000 rpm to obtain a coating.

[0043] The coatings were prepared by the methods of the embodiments, and then sprayed on the surface of the test display panel. The glare of the test display panel surface was tested by an AG flash point tester, and the wear resistance of the test display panel surface was tested by an abrasion tester. The following conclusions were drawn: Compared with the coating sample without adding filler in Example 1, the anti-glare UGR is 7.9, and the wear resistance grade is improved by Ⅲ degree; Compared with the coating sample without adding filler, the anti-glare UGR of Example 2 is 9.7, and the wear resistance grade is improved by Ⅱ degree; Compared with the coating sample without adding filler, the anti-glare UGR of Example 3 is 8.7, and the wear resistance grade is improved by II degrees.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A wear-resistant anti-glare curing coating, characterized in that: The composition comprises, by weight, 25-80 parts of a photosensitive resin, 1-5 parts of a photosensitizer, 2-20 parts of a reactive diluent, 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler; The photosensitive resin is a mixture resin of a fluorine-silicon modified acrylate polymer with a functionality of 6-15 and an acrylate polymer with a functionality of 2-4, and the ratio is 3:

1. The viscosity of the fluorine-silicon modified acrylate polymer at 60° C. is 500cps-4500cps, and the viscosity of the acrylate polymer at 60° C. is 1300cps-4500cps; The filler is a mixture of aluminum sulfate, sodium polyurethane, hydrophobic silicon dioxide particles and carbon black particles in a ratio of 10:3:3:

1.

2. The wear-resistant anti-glare curing coating according to claim 1, characterized in that: The photosensitizer is a mixture of benzophenone and benzoin alkyl ether in a ratio of 4:

1.

3. The wear-resistant anti-glare curing coating according to claim 1, characterized in that: The active diluent is a mixture of a monofunctional active diluent and a multifunctional active diluent in a ratio of 3:

1.

4. The wear-resistant anti-glare curing coating according to claim 3, characterized in that: The monofunctional active diluent is at least one of isobornyl acrylate, acryloyl morpholine, and 4-tert-butyl cyclohexyl acrylate; the multifunctional active diluent is at least one of 1,6-hexanediol diacrylate, tripropylene glycol diacrylate, and neopentyl glycol diacrylate.

5. The wear-resistant anti-glare curing coating according to claim 1, characterized in that: The catalyst is any one of a boron trifluoride solution, an amine solution, and a metal soap solution.

6. The wear-resistant anti-glare curing coating according to claim 1, characterized in that: The pigment is any one of azo pigments.

7. A method for preparing the wear-resistant anti-glare cured coating according to any one of claims 1 to 6, characterized in that: The following steps are involved: a: dissolving 25-80 parts of a photosensitive resin and 2-20 parts of a reactive diluent in a solvent, and mixing them at a speed of 300 rpm to 1000 rpm to obtain a first mixture; b: adding 20-40 parts of a catalyst, 5-10 parts of a pigment, and 10-20 parts of a filler to the first mixture, and mixing at a rotation speed of 2000 rpm-10000 rpm to obtain a second mixture; c: Add 1-5 parts of the photosensitizer to the second mixture, and mix at a rotation speed of 1000 rpm-2000 rpm to obtain a coating.