CN109354995B - UV LED water-based ultraviolet curing home furniture coating and preparation method thereof - Google Patents
UV LED water-based ultraviolet curing home furniture coating and preparation method thereof Download PDFInfo
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- 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
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Abstract
The invention discloses a UV LED water-based ultraviolet curing home furniture coating and a preparation method thereof, wherein the coating comprises the following components in parts by weight: 25-40 parts of water-based aliphatic polyurethane acrylate, 45-60 parts of water-based aliphatic polyurethane dispersoid, 0.1-0.5 part of water-based dispersant, 0.1-0.5 part of water-based wetting agent, 0.1-0.5 part of water-based fumed silica, 1-5 parts of TS100 matting powder, 0.3-0.8 part of water-based modified PE wax powder, 0.1-0.5 part of water-based defoaming agent, 0.1-0.5 part of water-based flatting agent, 0.5-3 parts of water-based thickening agent, 2-6 parts of water-based photoinitiator, 0.05-0.3 part of bactericide, 0.05-0.3 part of in-tank preservative and 4.8-12.5 parts of deionized water; the coating has low curing energy and high curing speed, and is also suitable for heat-sensitive substrates; the coating is green and environment-friendly, and has good construction performance; the preparation method is easy to implement, the curing equipment is simple, and no ozone is generated in the process.
Description
Technical Field
The invention relates to the technical field of UV LED water-based coatings and preparation thereof, in particular to a UV LED water-based ultraviolet curing home furniture coating and a preparation method thereof.
Background
The traditional UV water-based paint refers to a water-based ultraviolet curing resin UV paint, namely a water-based resin UV paint which is formed by quickly crosslinking at normal temperature to form a film by using ultraviolet rays as curing energy.
However, the water-based ultraviolet curing resin UV coating has high energy consumption, can generate a large amount of ozone in the curing process, has great pollution to the environment and is harmful to the health of people.
The UV LED (ultraviolet light emitting diode) is a cold light source, has no output in the infrared spectrum range, does not need to use complex cooling equipment such as a cooling roller and shading cloth, can be used for heat-sensitive base materials, has high electro-optic conversion efficiency, is environment-friendly and does not cause harm to human bodies.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a UV LED water-based ultraviolet curing home furniture coating and a preparation method thereof, and aims to solve the problems that the ultraviolet curing coating in the prior art is high in curing energy, generates ozone harmful to human bodies and the environment in the curing process, is complex in curing equipment and is not suitable for using photosensitive materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
a UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
25 to 40 parts of water-based aliphatic polyurethane acrylate,
45-60 parts of aqueous aliphatic polyurethane dispersion,
0.1 to 0.5 part of water-based dispersant,
0.1 to 0.5 part of water-based wetting agent,
0.1 to 0.5 part of aqueous fumed silica,
1-5 parts of TS100 matting powder,
0.3 to 0.8 portion of water-based modified PE wax powder,
0.1 to 0.5 part of water-based defoaming agent,
0.1 to 0.5 part of water-based leveling agent,
0.5 to 3 parts of an aqueous thickener,
2-6 parts of a water-based photoinitiator,
0.05 to 0.3 portion of bactericide,
0.05 to 0.3 portion of preservative in the tank,
4.8-12.5 parts of deionized water.
In the UV LED water-based ultraviolet curing home furniture coating, the weight ratio of the water-based dispersing agent, the water-based defoaming agent and the water-based leveling agent is 1: 1.
In the UV LED water-based ultraviolet curing home furniture coating, the water-based dispersing agent is a block copolymer containing pigment affinity groups.
In the UV LED water-based ultraviolet curing home furniture coating, the water-based wetting agent is alkanolamine salt of an acidic polymer.
In the UV LED waterborne ultraviolet curing home furniture coating, the waterborne defoaming agent is TEGO Airex 904W, and the waterborne flatting agent comprises TEGO Glide 410.
In the UV LED water-based ultraviolet curing home furniture coating, the water-based thickener is a water-based nonionic associative rheological modifier.
In the UV LED water-based ultraviolet curing home furniture coating, the water-based photoinitiator is a compound product of (2, 4, 6-trimethylbenzoyl) -diphenyl phosphine oxide and isooctyl p-dimethylaminobenzoate.
In the UV LED water-based ultraviolet curing home furniture coating, the water-based bactericide is 2-n-octyl-4-isothiazoline-3-ketone, and the preservative in the tank is 2-methyl-4-isothiazoline-3-ketone.
A preparation method of a UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
s001, respectively putting the water-based aliphatic polyurethane acrylate, the water-based aliphatic polyurethane dispersoid, the water-based dispersant and the water-based wetting agent into a reactor according to the mixture ratio, and dispersing for 10-15 min at the rotating speed of 750-850 rpm;
s002, adding aqueous fumed silica, TS100 extinction powder and aqueous modified PE wax powder into the reactor, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;
s003, sampling and inspecting, and when the fineness is less than or equal to 20 microns, adding an aqueous defoaming agent, an aqueous leveling agent and an aqueous thickening agent, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;
and S004, sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and a preservative in a tank, dispersing for 10-15 min at the rotating speed of 750-850 rpm, and uniformly mixing to obtain the finished coating.
Has the advantages that:
the invention provides a UV LED water-based ultraviolet curing home furniture coating and a preparation method thereof, the coating has low curing energy and high curing speed, the curing speed is 25m/min under the irradiation of a 395nm UV LED light source, 50-75% of electric power can be saved, and the coating is also suitable for heat-sensitive base materials; the coating is green and environment-friendly, does not generate harmful substances such as VOC (volatile organic compounds) and the like, has good construction performance, the hardness of a cured coating film reaches 2H of the hardness of a Chinese pencil, the adhesive force reaches 0 level, the surface of the coating film has fine and fluffy hand feeling and extremely high transparency, and the coating film has excellent leveling property, fullness, hardness and yellowing resistance and is suitable for surface coating of furniture such as various home dining tables, cabinets, chairs, beds and the like; the preparation method is easy to implement, the curing equipment is simple, cooling or shading equipment is not needed, and no ozone is generated in the process.
Drawings
FIG. 1 is a diagram of the ultraviolet absorption spectrum of the aqueous photoinitiator provided by the invention under different mass percent concentrations.
Detailed Description
The invention provides a UV LED water-based ultraviolet curing home furniture coating and a preparation method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and more clear, the invention is further described in detail by referring to the attached drawings and 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.
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
25 to 40 parts of water-based aliphatic polyurethane acrylate,
45-60 parts of aqueous aliphatic polyurethane dispersion,
0.1 to 0.5 part of water-based dispersant,
0.1 to 0.5 part of water-based wetting agent,
0.1 to 0.5 part of aqueous fumed silica,
1-5 parts of TS100 matting powder,
0.3 to 0.8 portion of water-based modified PE wax powder,
0.1 to 0.5 part of water-based defoaming agent,
0.1 to 0.5 part of water-based leveling agent,
0.5 to 3 parts of an aqueous thickener,
2-6 parts of a water-based photoinitiator,
0.05 to 0.3 portion of bactericide,
0.05 to 0.3 portion of preservative in the tank,
4.8-12.5 parts of deionized water.
In the coating, the water-based aliphatic polyurethane acrylate and the water-based aliphatic polyurethane dispersoid are
The main film forming substance has excellent physical and chemical resistance and good adhesive force to a substrate, and the water-based aliphatic polyurethane acrylate and the water-based aliphatic polyurethane dispersoid with different particle sizes are matched in the coating, so that the adhesive force of the coating to the substrate of the household furniture is improved, and the coating is more exquisite.
Preferably, the weight ratio of the aqueous dispersant to the aqueous defoamer to the aqueous leveling agent is 1: 1; the water-based dispersing agent comprises a block copolymer containing pigment affinity groups, in one embodiment, the water-based dispersing agent is BYK 190, and mainly enables water-based fumed silica and TS matting powder to be better dispersed in the coating, so that the viscosity of the coating is stabilized, and the storage stability of the coating is improved; the water-based defoaming agent is TEGO Airex 904W, the TEGO Airex 904W does not contain a solvent, and has excellent shrinkage cavity resistance, so that bubbles and pinholes can be prevented from being formed in the coating during stirring and construction; the aqueous leveling agent is TEGO Glide 410, the TEGO Glide 410 has high efficiency, the surface fluidity and the leveling property during the coating construction can be controlled and improved, the shrinkage cavity of the coating is reduced, the floating color and the floating color of the pigment can be prevented, and the smoothness and the scratch resistance of the coating are adjusted; when the water-based defoaming agent, the water-based leveling agent and the water-based dispersing agent are mixed according to the proportion, the dispersing effect and the anti-shrinkage effect of the coating are best.
Preferably, the aqueous wetting agent is an alkanolamine salt of an acidic polymer; in one embodiment, the aqueous wetting agent is TEGO Wet 270, which is a highly effective wetting agent that provides uniform wetting of the coating composition, good wetting of the substrate, particularly of relatively rough-surfaced metal articles, greatly improves adhesion of the coating system to the substrate, and provides excellent anti-cratering properties that improve leveling of the coating.
Preferably, the waterborne fumed silica adopts WR 8520 of Pico chemistry, and is mainly used for adjusting the rheological property of the coating during production, storage and construction and improving the fluidity and the thickness of a paint film during construction.
Preferably, the TS100 matting powder has extremely high transparency and matting effect, and can well adjust the glossiness of the paint film.
Preferably, the aqueous thickener is an aqueous nonionic associative rheology modifier; in one embodiment, the aqueous thickener employs RM-8W from roman hags, an aqueous nonionic associative rheology modifier free of oil solvents, providing excellent flow and leveling, uniform film forming properties in the coating system.
Preferably, the aqueous photoinitiator is a compound product of (2, 4, 6-trimethylbenzoyl) -diphenyl phosphine oxide and isooctyl p-dimethylaminobenzoate; isooctyl p-dimethylaminobenzoate can neutralize (2, 4, 6-trimethylbenzoyl) -diphenylphosphine oxide. The composite photoinitiator is an efficient photoinitiator, has an absorption peak at 393nm close to the curing wavelength of the coating, and the photolysis products of the composite photoinitiator are trimethyl benzoyl free radicals and diphenyl phosphoryl free radicals which have high initiation activity and are beneficial to ultraviolet light transmission, so that the composite photoinitiator has excellent stability and the surface drying effect of the coating is improved. Referring to fig. 1, fig. 1 is a graph of the ultraviolet absorption spectrum of the aqueous photoinitiator at different mass percent concentrations after being diluted by resin, and as shown in the figure, the aqueous photoinitiator has strong absorption near 395 nm.
Preferably, the water-based bactericide is 2-n-octyl-4-isothiazolin-3-one, which can obstruct the metabolism of coating microorganisms and bacteria and block photosynthesis; the preservative in the tank is 2-methyl-4-isothiazoline-3-ketone, is a high-efficiency bactericide, has a good effect of inhibiting the growth of microorganisms, and can inhibit the growth and heredity of the microorganisms in the coating and damage cell walls and cell membranes of the microorganisms.
In the coating, the waterborne aliphatic polyurethane dispersion and the waterborne aliphatic polyurethane emulsion are matched with various functional additives for synergistic action, so that the obtained coating has good construction performance, the surface of a paint film has fine and fluffy hand feeling and extremely high transparency, has excellent leveling property, fullness, hardness and yellowing resistance, and is suitable for surface coating of furniture such as various home dining tables, cabinets, chairs, beds and the like; the coating uses deionized water as a solvent, avoids the risk of VOC generated by the solvent, and is green and environment-friendly.
A preparation method of a UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting aqueous aliphatic polyurethane acrylate, aqueous aliphatic polyurethane dispersoid, aqueous dispersant and aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 10-15 min at the rotating speed of 750-850 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;
sampling and inspecting, and when the fineness is less than or equal to 20 microns, adding an aqueous defoaming agent, an aqueous flatting agent and an aqueous thickening agent, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;
sampling and inspecting, namely after the coating is coated and scraped on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 10-15 min at the rotating speed of 750-850 rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint prepared by the method is applied to the surfaces of various household furniture, the coating is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, and the paint film surface has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
Example 1
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
33 parts of water-based aliphatic polyurethane acrylic ester,
50 parts of aqueous aliphatic polyurethane dispersion,
0.3 part of water-based dispersant,
0.3 part of water-based wetting agent,
0.3 part of aqueous fumed silica,
2 parts of TS100 matting powder, namely,
0.5 part of waterborne modified PE wax powder,
0.3 part of water-based defoaming agent,
0.3 part of water-based leveling agent,
1 part of water-based thickening agent, namely,
4 parts of a water-based photoinitiator,
0.1 part of a bactericide, namely,
0.1 part of preservative in the tank,
7.6 parts of deionized water.
The preparation method of the UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting the aqueous aliphatic polyurethane acrylate, the aqueous aliphatic polyurethane dispersoid, the aqueous dispersant and the aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 12min at the rotating speed of 800 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing for 15min at the rotating speed of 1300 rpm;
sampling and inspecting, and when the fineness is less than or equal to 20 mu m, adding the aqueous defoaming agent, the aqueous leveling agent and the aqueous thickening agent, and dispersing for 10min at the rotating speed of 1500 rpm;
sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 15min at the rotating speed of 800rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint is applied to the surfaces of various household furniture, and is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, the surface of the paint film has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
Example 2
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
30 parts of water-based aliphatic polyurethane acrylic ester,
45 parts of aqueous aliphatic polyurethane dispersion,
0.1 part of water-based dispersant,
0.1 part of water-based wetting agent,
0.1 part of aqueous fumed silica,
1 part of TS100 matting powder, namely,
0.3 part of waterborne modified PE wax powder,
0.1 part of water-based defoaming agent,
0.1 part of water-based leveling agent,
1.5 parts of an aqueous thickening agent,
2.8 parts of a water-based photoinitiator,
0.3 part of a bactericide, namely,
0.05 part of preservative in the tank,
6.5 parts of deionized water.
The preparation method of the UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting aqueous aliphatic polyurethane acrylate, aqueous aliphatic polyurethane dispersoid, aqueous dispersant and aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 15min at the rotating speed of 750 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing for 15min at the rotating speed of 1200 rpm;
sampling and inspecting, and when the fineness is less than or equal to 20 mu m, adding the aqueous defoaming agent, the aqueous leveling agent and the aqueous thickening agent, and dispersing for 10min at the rotating speed of 1500 rpm;
sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 12min at the rotating speed of 850rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint is applied to the surfaces of various household furniture, and is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, the surface of the paint film has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
Example 3
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
28 parts of water-based aliphatic polyurethane acrylate,
60 parts of aqueous aliphatic polyurethane dispersion,
0.5 part of water-based dispersant,
0.5 part of water-based wetting agent,
0.5 part of aqueous fumed silica,
3 parts of TS100 matting powder, namely,
0.4 part of waterborne modified PE wax powder,
0.5 part of water-based defoaming agent,
0.5 part of water-based leveling agent,
0.5 part of water-based thickening agent,
2 parts of a water-based photoinitiator,
0.15 part of a bactericide, namely,
0.12 part of preservative in the tank,
4.8 parts of deionized water.
The preparation method of the UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting aqueous aliphatic polyurethane acrylate, aqueous aliphatic polyurethane dispersoid, aqueous dispersant and aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 10min at the rotating speed of 850 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing at the rotating speed of 1500rpm for 10 min;
sampling and inspecting, and when the fineness is less than or equal to 20 mu m, adding the aqueous defoaming agent, the aqueous leveling agent and the aqueous thickening agent, and dispersing for 12min at the rotating speed of 1300 rpm;
sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 12min at the rotating speed of 750rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint is applied to the surfaces of various household furniture, and is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, the surface of the paint film has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
Example 4
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
25 parts of water-based aliphatic polyurethane acrylate,
48 parts of aqueous aliphatic polyurethane dispersion,
0.4 part of water-based dispersant,
0.2 part of water-based wetting agent,
0.4 part of aqueous fumed silica,
5 parts of TS100 matting powder, namely,
0.6 part of waterborne modified PE wax powder,
0.4 part of water-based defoaming agent,
0.4 part of water-based leveling agent,
2 parts of an aqueous thickening agent, namely,
4.8 parts of a water-based photoinitiator,
0.08 portion of bactericide, 0.08 portion of,
0.3 part of preservative in the tank,
10.6 parts of deionized water.
The preparation method of the UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting aqueous aliphatic polyurethane acrylate, aqueous aliphatic polyurethane dispersoid, aqueous dispersant and aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 15min at the rotating speed of 780 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing for 15min at the rotating speed of 1300 rpm;
sampling and inspecting, and when the fineness is less than or equal to 20 mu m, adding the aqueous defoaming agent, the aqueous leveling agent and the aqueous thickening agent, and dispersing for 12min at the rotating speed of 1200 rpm;
sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 10min at the rotating speed of 820rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint is applied to the surfaces of various household furniture, and is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, the surface of the paint film has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
Example 5
A UV LED water-based ultraviolet light curing home furniture coating comprises the following components in parts by weight:
40 parts of water-based aliphatic polyurethane acrylic ester,
53 parts of aqueous aliphatic polyurethane dispersion,
0.2 part of water-based dispersant,
0.4 part of water-based wetting agent,
0.2 part of aqueous fumed silica,
2.5 parts of TS100 matting powder,
0.8 part of waterborne modified PE wax powder,
0.2 part of water-based defoaming agent,
0.2 part of water-based leveling agent,
3 parts of an aqueous thickening agent, namely,
6 parts of a water-based photoinitiator,
0.05 part of a bactericide, namely,
0.08 part of preservative in the tank,
12.5 parts of deionized water.
The preparation method of the UV LED water-based ultraviolet curing home furniture coating comprises the following steps:
firstly, respectively putting aqueous aliphatic polyurethane acrylate, aqueous aliphatic polyurethane dispersoid, aqueous dispersant and aqueous wetting agent into a reactor according to the mixture ratio, and dispersing for 10min at the rotating speed of 850 rpm;
then adding aqueous fumed silica, TS100 matting powder and aqueous modified PE wax powder into the reactor, and dispersing at the rotating speed of 1500rpm for 10 min;
sampling and inspecting, and when the fineness is less than or equal to 20 mu m, adding the aqueous defoaming agent, the aqueous leveling agent and the aqueous thickening agent, and dispersing for 15min at the rotating speed of 1200 rpm;
sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage cavity phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and an in-tank preservative, dispersing for 12min at the rotating speed of 800rpm, and uniformly mixing to obtain the finished coating.
The dispersion time and the dispersion speed in the preparation process of the coating are determined by the components and the proportion of the coating, the viscosity of the coating prepared by the method is 30 ℃/65 +/-2 KU, the fineness is less than or equal to 20 mu m, and the coating has good construction performance.
The finished paint is applied to the surfaces of various household furniture, and is irradiated under a 395nm UV LED curing light source, the curing speed is 25m/min, the hardness of the formed paint film coating is the hardness of a Chinese pencil 2H, the detection is carried out according to the GB 9286-88S standard, the adhesive force of the coating reaches 0 level, the surface of the paint film has fine hand feeling, fluffy feeling, excellent leveling property, fullness, hardness and yellowing resistance.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (7)
- The UV LED water-based ultraviolet curing home furniture coating is characterized by comprising the following components in parts by weight:
the aqueous dispersant is a block copolymer containing pigment affinity groups; the water-based photoinitiator is a compound product of (2, 4, 6-trimethylbenzoyl) -diphenyl phosphine oxide and isooctyl p-dimethylaminobenzoate. - 2. The UV LED aqueous ultraviolet curing home furniture coating as claimed in claim 1, wherein the weight ratio of the aqueous dispersing agent, the aqueous defoaming agent and the aqueous leveling agent is 1: 1.
- 3. The UV LED aqueous UV-curable household furniture coating of claim 1, wherein the aqueous wetting agent is an alkanolamine salt of an acidic polymer.
- 4. The UV LED aqueous ultraviolet-curable household furniture coating as claimed in claim 1, wherein the aqueous defoamer is TEGO Airex 904W, and the aqueous leveling agent is TEGO Glide 410.
- 5. The UV LED aqueous ultraviolet-curable household furniture coating according to claim 1, wherein the aqueous thickener is an aqueous nonionic associative rheology modifier.
- 6. The UV LED aqueous ultraviolet-curing home furniture coating as claimed in claim 1, wherein the aqueous bactericide is 2-n-octyl-4-isothiazolin-3-one, and the in-tank preservative is 2-methyl-4-isothiazolin-3-one.
- 7. The preparation method of the UV LED water-based ultraviolet curing home furniture coating as claimed in any one of claims 1 to 6, characterized by comprising the following steps:s001, respectively putting the water-based aliphatic polyurethane acrylate, the water-based aliphatic polyurethane dispersoid, the water-based dispersant and the water-based wetting agent into a reactor according to the mixture ratio, and dispersing for 10-15 min at the rotating speed of 750-850 rpm;s002, adding aqueous fumed silica, TS100 extinction powder and aqueous modified PE wax powder into the reactor, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;s003, sampling and inspecting, and when the fineness is less than or equal to 20 microns, adding an aqueous defoaming agent, an aqueous leveling agent and an aqueous thickening agent, and dispersing for 10-15 min at the rotating speed of 1200-1500 rpm;and S004, sampling and inspecting, namely after the coating is coated on a glass plate and has no shrinkage phenomenon, adding a water-based photoinitiator, deionized water, a bactericide and a preservative in a tank, dispersing for 10-15 min at the rotating speed of 750-850 rpm, and uniformly mixing to obtain the finished coating.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110079075A (en) * | 2019-04-29 | 2019-08-02 | 湖州吉复新型材料科技有限公司 | A kind of Waterborne Radiation Curing Material and its preparation process |
| CN112625574A (en) * | 2020-12-16 | 2021-04-09 | 惠州市毕升堂科技有限公司 | Water-based UV touch oil and preparation method thereof |
| CN112724820A (en) * | 2021-01-19 | 2021-04-30 | 重庆瑞恩涂料有限公司 | Water-based colored light-cured paint and preparation method thereof |
| CN115703940A (en) * | 2021-08-09 | 2023-02-17 | 深圳有为技术控股集团有限公司 | Anti-new-corona-virus aqueous LED white matte finish paint and preparation method thereof |
| CN114736602B (en) * | 2022-05-11 | 2023-07-07 | 上海一田涂料有限公司 | Long-distance cured water-based LED blue light UV wood coating and preparation method thereof |
| CN116063895A (en) * | 2022-12-23 | 2023-05-05 | 中华制漆(新丰）有限公司 | Water-resistant wood paint and preparation method thereof |
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| CN108410347A (en) * | 2018-04-22 | 2018-08-17 | 湖州吉复新型材料科技有限公司 | A kind of LED light source waterborne UV coating |
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