CN108504274A - Aqueous bis- curing metal coating of UV and its preparation method and application - Google Patents
Aqueous bis- curing metal coating of UV and its preparation method and application Download PDFInfo
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- CN108504274A CN108504274A CN201810265379.7A CN201810265379A CN108504274A CN 108504274 A CN108504274 A CN 108504274A CN 201810265379 A CN201810265379 A CN 201810265379A CN 108504274 A CN108504274 A CN 108504274A
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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
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention provides bis- curing metal coating of aqueous UV and its preparation method and application.The raw material of the aqueous bis- curing metal coating of UV of the present invention includes host agent and curing agent；The raw material of the host agent includes：Acrylic PU dispersion, ultraviolet initiator, dispersant, levelling agent, antifoaming agent, water aluminum-silver slurry pigment, Yi Jishui；The raw material of the curing agent includes：Water dispersible polyisocyanate lipopolymer.The aqueous bis- curing metal paints of UV have that quick-drying, levelability be good, excellent chemical moral character, metal effect is good, wide variety of substrates has excellent adhesive attraction, there is excellent wearability and recoatability simultaneously, the characteristics of having concentrated UV paints and bicomponent polyurethane paint, comprehensive performance are greatly improved and improve than existing UV paints and bicomponent polyurethane paint.
Description
Technical field
The present invention relates to paint fields, in particular to bis- curing metal coating of aqueous UV and preparation method thereof and answer
With.
Background technology
Due to the attention to environmental protection etc., water paint has received widespread attention and quickly grows in recent years.
Water-based ultraviolet (UV) curable coating has given full play to the comprehensive performance of UV solidification and two kinds of technologies with aqueous diluent, than conventional oil-based
Light UV coating has more construction, economy, safety, the advantage of application aspect, but some performances of aqueous UV coatings are such as：It is water-fast, alkaline-resisting
Property is poor etc., limits the application of waterborne UV coating.Simple waterborne UV coating is only applicable to plane coated solidified, multiple for shape
Miscellaneous body surface solidification is relatively difficult.
For the development of coating, it is target that we pursue always that environmental requirement and performance, which are taken into account, and aqueous UV is dual
The coating material solidified application field for making waterborne radiation curable coating is further developed, and in the premise for keeping existing environmental-protecting performance
Under, coating property is further promoted, to widen the application field of aqueous UV double curing coatings, then be at present urgently
It solves the problems, such as.
In view of this, special propose the present invention.
Invention content
The first object of the present invention is to provide a kind of bis- curing metal coating of aqueous UV, and coating of the present invention has stability
It is good, fast drying, and the advantages that good weatherability.
The second object of the present invention is to provide a kind of preparation method of the bis- curing metal coating of aqueous UV, this hair
Bright preparation method has many advantages, such as simple process, is suitable for large-scale production.
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
The raw material of a kind of bis- curing metal coating of aqueous UV, the aqueous bis- curing metal coating of UV includes host agent and solidification
Agent；
Wherein, the raw material of the host agent includes：Acrylic PU dispersion, ultraviolet initiator, dispersant, levelling
Agent, antifoaming agent, water aluminum-silver slurry pigment, Yi Jishui；
Preferably, the water is deionized water；
The raw material of the curing agent includes：Water dispersible polyisocyanate lipopolymer；
Preferably, the water dispersible polyisocyanate lipopolymer is aliphatic poly carbimide polymer.
Preferably, in the bis- curing metal coating of aqueous UV of the present invention, the mass ratio of the host agent and curing agent is
(10~20)：1；
It is furthermore preferred that the mass ratio of host agent and curing agent is (12~18)：1；
It is further preferred that the mass ratio of host agent and curing agent is 15：1.
Preferably, ultraviolet initiator described in the bis- curing metal coating of aqueous UV of the present invention be hydroxy-ketone or
One or both of acyl group phosphine initiator；
It is furthermore preferred that the ultraviolet initiator is hydroxy-ketone and acyl group phosphine initiator.
Preferably, in the bis- curing metal coating of aqueous UV of the present invention, the dispersant is group containing pigment adsorption
Aqueous copolymers solution；
And/or the levelling agent is silicone levelling agent；
And/or the antifoaming agent is mineral oil defoaming agent.
Preferably, in the bis- curing metal coating of aqueous UV of the present invention, according to percent by weight, each original in host agent
Expect that dosage is as follows：
Acrylic PU dispersion 50~75%, ultraviolet initiator 1~1.5%, dispersant 0.5~1.0%, levelling
Agent 0.1~0.5%, antifoaming agent 0.1~0.5%, water aluminum-silver slurry pigment 5~15% and water 20~35%；
It is furthermore preferred that according to percent by weight, each raw material dosage is as follows in host agent：Acrylic PU dispersion 60~
70%, ultraviolet initiator 1~1.5%, dispersant 0.5~1.0%, levelling agent 0.1~0.5%, antifoaming agent 0.1~0.5%,
Water aluminum-silver slurry pigment 5~7% and water 20~35%；
It is further preferred that according to percent by weight, each raw material dosage is as follows in host agent：Acrylic PU dispersion
60%, ultraviolet initiator 1.5%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry pigment 6%,
And the water of surplus.
Meanwhile the present invention also provides the preparation method of the bis- curing metal coating of the aqueous UV, including the following steps：
Each raw material of host agent is mixed, host agent is obtained, then mixes host agent with curing agent to get bis- to the aqueous UV
Curing metal coating.
Preferably, in the preparation method of the bis- curing metal coating of aqueous UV of the present invention, the preparation side of the host agent
Method includes the following steps：
Under agitation, into acrylic PU dispersion, the ultraviolet initiator dissipated with partial moisture is added；
Then, antifoaming agent and levelling agent is added；
Then, it is added with the scattered water aluminum-silver slurry pigment of dispersant and partial moisture；
Finally, the water of surplus is added, and is uniformly mixed to get to host agent.
Preferably, in the preparation method of the aqueous bis- curing metal coating of UV of the present invention, the preparation method of the host agent includes
Following steps：
Ultraviolet initiator is dissipated into 10~15min with partial moisture, obtains the ultraviolet initiator dissipated with partial moisture；
And/or water aluminum-silver slurry pigment disperses under the rotating speed of 200~300r/min with dispersant, part water to 15~
20min is obtained with the scattered water aluminum-silver slurry pigment of dispersant and partial moisture.
Further, the present invention also provides the applications of the bis- curing metal coating of the aqueous UV, including：
By the aqueous bis- curing metal coating of UV of the present invention be coated on substrate surface, then carry out UV solidification and/
Or heat cure.
Preferably, in the application of the bis- curing metal coating of aqueous UV of the present invention, the base material is wooden, metal,
Or one or more of plastic basis material.
Compared with prior art, beneficial effects of the present invention are：
1. coating drying of the present invention is rapid, coating surface can reach hardness HB or higher after ultraviolet light.
2. simultaneously, by introducing the aliphatic polyurethane acrylic resin of high durable in host agent, to improve coating
Weatherability.
3. paint film cures after do solid work after, hardness, impact, flexibility, chemical resistance show excellent.
4. widely used：The application that can be used for wide variety of substrates, the uniformly preferable attachment on woodenware, metal, plastic cement material
Performance；It is excellent to recoat matching performance, can be matched with a variety of bottoms, finishing coat.
5. the storage stability of coating of the present invention is good, and overcomes the short defect of most aqueous metallic paint storage times.
6. the metal effect of coating of the present invention can reach the appearance of conventional oil-based metallic paint.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
In view of present in current water paint stability, weatherability it is poor, formed paint film intensity is more low to ask
Topic, the present invention provides a kind of novel aqueous bis- curing metal coating of UV, to solve the deficiency present in existing water paint
Place.
Specifically, the bis- curing metal coating of aqueous UV provided by the present invention are by host agent and two component of curing agent mixing system
At；
And when being mixed with coating, the mass ratio of host agent and curing agent is (10~20)：1, such as can be, but it is unlimited
In 12:1、15:1、17：1 or 19:1；Preferably, the mass ratio of host agent and curing agent is (12~18)：1；It is furthermore preferred that main
The mass ratio of agent and curing agent is 15：1.
Further, raw material needed for host agent preparation is：Acrylic PU dispersion, ultraviolet initiator, dispersant, stream
Flat agent, antifoaming agent, water aluminum-silver slurry pigment, Yi Jishui；
Aliphatic acrylic dispersions of polyurethanes carries unsaturated double-bond and hydroxyl, and can both be cured with ultraviolet light can also be with
Isocyanates reaction solidification, and provide good adhesive force and chemical resistance for coating；Meanwhile by with the poly- ammonia of acrylic acid
Ester dispersion is raw material, can also improve the weatherability of further formed paint film；
Ultraviolet initiator is the composite initiator of hydroxyl ketone initiator and acyl group phosphine initiator；
For example, hydroxyl ketone initiator used is specifically as follows：2- hydroxy-2-methyl -1- Benzophenones or 1- hydroxy cyclohexylphenyls
Base Benzophenone；
Meanwhile acyl group phosphine initiator used is specifically as follows：2,4,6- trimethylbenzoy-diphenies phosphine oxide or
2,4,6- trimethylbenzoyl phenyl phosphinic acid ethyl esters.
And by the selection, adjustment and optimization for raw material, but also in raw material of the present invention, it is not necessary that UV Absorption is added
The adjuvants such as agent and stabilizer, can also realize the rapid UV-curing of coating, this can not only reduce cost, and can simplify system
Standby technique, also helps the green production for realizing coating.
The dispersant is the aqueous copolymers solution of the group containing pigment adsorption, specifically, can be：
The levelling agent is silicone levelling agent, is aqueous special-purpose organic silicon class levelling agent more specifically, such as：
The antifoaming agent is：Mineral oil defoaming agent；
The water aluminum-silver slurry pigment is；And water aluminum-silver slurry pigment can not only make coating of the present invention with excellent
Metallic effect, while by the compound action with other components, it is also possible that coating of the present invention has good storage steady
It is qualitative.
Meanwhile the water is preferably deionized water.
Further, by the coordinative role between each component, not only so that the bis- curing metal coating tools of the aqueous UV of the present invention
There are good stability and metallic effect, while but also being further formed by paint film with good temperature, chemicals
Deng tolerance.
Likewise it is preferred that, according to mass percentage, each raw material dosage is specific as follows in host agent：Acroleic acid polyurethane point
Granular media 50~75%, such as can be, but 55,57,60,62,65 are not limited to, 67,70 or 72% etc.；Ultraviolet initiator 1
~1.5%, such as can be, but it is not limited to 1.1,1.2,1.3 or 1.4% etc.；Dispersant 0.5~1.0%, such as can be with
For, but it is not limited to 0.6,0.7,0.8 or 0.9% etc.；Levelling agent 0.1~0.5%, such as can be, but be not limited to 0.2,
0.3 or 0.4% etc.；Antifoaming agent 0.1~0.5%, such as can be, but it is not limited to 0.2,0.3 or 0.4% etc.；It is aqueous
Aluminum paste pigment 5~15%, such as can be, but it is not limited to 5,7,9,10,12 or 14% etc.；And water 20~35%, example
It such as can be, but be not limited to 22,25,27,30,32 or 34% etc.；
Condition is that the sum of each raw material dosage is 100%.
It is furthermore preferred that according to percent by weight, each raw material dosage is as follows in host agent：Acrylic PU dispersion 60~
70%, ultraviolet initiator 1~1.5%, dispersant 0.5~1.0%, levelling agent 0.1~0.5%, antifoaming agent 0.1~0.5%,
Water aluminum-silver slurry pigment 5~7% and water 20~35%；
Condition is that the sum of each raw material dosage is 100%.
Still more preferably, according to percent by weight, each raw material dosage is as follows in host agent：Acroleic acid polyurethane disperses
Body 60%, ultraviolet initiator 1.5%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry pigment
6% and surplus deionized water.
Further, it is in terms of 100, for most preferred raw material proportioning, (that is, acrylic acid by raw material gross mass number
60 parts of dispersions of polyurethanes, 1.5 parts of ultraviolet initiator, 0.8 part of dispersant, 0.2 part of levelling agent, 0.1 part of antifoaming agent, aqueous aluminium
The deionized water of 6 parts of silver paste pigment and surplus, each raw material total amount are 100 parts) preparation method of host agent is specifically introduced such as
Under：
Under the conditions of mixing slowly (rotating speed is preferably 150~200r/min), it is poly- that 60 parts of acrylic acid are added into container
Urethane dispersion；
Then, it under the stirring condition, is added (ultraviolet light-initiated by 1.5 parts with ion ultraviolet initiator water-dispersed
Agent disperses 10~15min with 3 parts of deionized waters and is made)；
Then, under the stirring condition, levelling agent and antifoaming agent are sequentially added；
Then, under the stirring condition, the water aluminum-silver slurry pigment disperseed with dispersant and deionized water is added (by 6 parts
Water aluminum-silver slurry pigment disperses under the conditions of 200~300r/min of rotating speed 15 with 0.8 part of dispersant and 15 parts of deionized waters~
20min is obtained)；
Finally, under the stirring condition, the deionized water of surplus is added, and continues 40~50min of stirring so that each original
Material is uniformly mixed to get to host agent.
Meanwhile another raw material components curing agent of coating of the present invention, then it is entirely that water-dispersion type aliphatic isocyanates are poly-
Object is closed, i.e., in curing agent, the quality accounting of water-dispersion type aliphatic isocyanates polymer is 100%.
Further, when in use, host agent and curing agent are mixed in proportion to get bis- solid to the aqueous UV of the present invention
Change metallic paint.
Have that quick-drying, levelability be good, excellent chemical product by the bis- curing metal coating of aqueous UV prepared by method as above
Property, metal effect is good, has excellent adhesive attraction to a variety of base materials, while having excellent wearability and recoatability, has concentrated UV
Paint and the characteristics of bicomponent polyurethane paint, comprehensive performance than existing UV paints and bicomponent polyurethane paint be greatly improved with
Improve.
Likewise, the use of the aqueous bis- curing metal coating of UV of the present invention is also easier, host agent and curing agent are mixed
Then the bis- curing metal coating coatings (for example, by using spraying) of the aqueous UV of gained carry out UV photocurings and/or heat on base material
Solidification after doing solid work, forms paint film；
And the base material can be the materials such as woodenware, metal or plastics.
Embodiment 1
According to mass percent：Acrylic PU dispersion 60%, 2- hydroxy-2-methyl -1- Benzophenones 0.5%, 2,
4,6- trimethylbenzoy-dipheny phosphine oxides 1%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, aqueous aluminium
The deionized water of silver paste pigment 6% and surplus weighs appropriate each raw material respectively：
Then, as follows, the bis- curing metal coating of aqueous UV of embodiment 1 are prepared；
Under the conditions of rotating speed 150r/min, acrylic PU dispersion is added into container；
Then, it is added and initiator (is disperseed by 15min systems with 3% deionized water with ion ultraviolet initiator water-dispersed
)；
Then, levelling agent and antifoaming agent are sequentially added；
Then, the water aluminum-silver slurry pigment disperseed with dispersant and deionized water is added (by water aluminum-silver slurry pigment to divide
Powder and 15% deionized water are disperseed 20min under the conditions of rotating speed 300r/min and are obtained)；
Finally, the deionized water of surplus is added, and continues to stir 50min so that each raw material is uniformly mixed to get to master
Agent.
Then, according to 15:Host agent and aliphatic poly carbimide mixed with polymers are obtained embodiment 1 by 1 mass ratio
The bis- curing metal coating of aqueous UV.
Embodiment 2
Host agent is prepared Following the procedure of Example 1；
Then, by host agent and aliphatic poly carbimide polymer according to 10:1 mass ratio is mixed, and is implemented
The bis- curing metal coating of aqueous UV of example 2.
Embodiment 3
Host agent is prepared Following the procedure of Example 1；
Then, by host agent and aliphatic poly carbimide polymer according to 20:1 mass ratio is mixed, and is implemented
The bis- curing metal coating of aqueous UV of example 3.
Embodiment 4
According to mass percent：Acrylic PU dispersion 70%, 1- hydroxy cyclohexyl phenylketones 0.5%, 2,4,6-
Trimethylbenzoyl phenyl phosphinic acid ethyl ester 1%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry
The deionized water of pigment 6% and surplus weighs appropriate each raw material respectively：
Then, as follows, the bis- curing metal coating of aqueous UV of embodiment 4 are prepared；
Under the conditions of rotating speed 150r/min, acrylic PU dispersion is added into container；
Then, it is added and initiator (is disperseed by 15min systems with 3% deionized water with ion ultraviolet initiator water-dispersed
)；
Then, levelling agent and antifoaming agent are sequentially added；
Then, the water aluminum-silver slurry pigment disperseed with dispersant and deionized water is added (by water aluminum-silver slurry pigment to divide
Powder and 15% deionized water are disperseed 15min under the conditions of rotating speed 300r/min and are obtained)；
Finally, the deionized water of surplus is added, and continues to stir 50min so that each raw material is uniformly mixed to get to master
Agent.
Then, according to 15:Host agent and aliphatic poly carbimide mixed with polymers are obtained embodiment 4 by 1 mass ratio
The bis- curing metal coating of aqueous UV.
Embodiment 5
According to mass percent：60%, 2,4,6- trimethylbenzoyl phenyl phosphonic acids second of acrylic PU dispersion
Ester 1.5%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry pigment 6% and surplus go from
Sub- water weighs appropriate each raw material respectively：
Then, as follows, the bis- curing metal coating of aqueous UV of embodiment 1 are prepared；
Under the conditions of rotating speed 150r/min, acrylic PU dispersion is added into container；
Then, it is added and initiator (is disperseed by 15min systems with 3% deionized water with ion ultraviolet initiator water-dispersed
)；
Then, levelling agent and antifoaming agent are sequentially added；
Then, the water aluminum-silver slurry pigment disperseed with dispersant and deionized water is added (by water aluminum-silver slurry pigment to divide
Powder and 15% deionized water are disperseed 20min under the conditions of rotating speed 250r/min and are obtained)；
Finally, the deionized water of surplus is added, and continues to stir 50min so that each raw material is uniformly mixed to get to master
Agent.
Then, according to 15:Host agent and aliphatic poly carbimide mixed with polymers are obtained embodiment 5 by 1 mass ratio
The bis- curing metal coating of aqueous UV.
Comparative example 1
According to mass percent：Acrylic PU dispersion 60%, 1- hydroxy cyclohexyl phenylketones 0.5%, 2,4,6-
Trimethylbenzoy-dipheny phosphine oxide 1%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry
The deionized water of pigment 6% and surplus weighs appropriate each raw material respectively：
Then, as follows, the bis- curing metal coating of aqueous UV of comparative example 1 are prepared；
Under the conditions of rotating speed 150r/min, acrylic PU dispersion, initiator, dispersion is added into container successively
Then agent, levelling agent, antifoaming agent, water aluminum-silver slurry pigment, and remove example water stir 60min to get to host agent；
Then, according to 15:Host agent and aliphatic poly carbimide mixed with polymers are obtained comparative example 1 by 1 mass ratio
The bis- curing metal coating of aqueous UV.
Experimental example 1
(1) paint stability is tested
Embodiment 1-5 and the coating of comparative example 1 are stored 6 months at a temperature of 60 DEG C respectively, then test coating
Performance
(2) paint film property is tested
The coating of embodiment 1-5 and comparative example 1 are sprayed at same batch and the identical plastics of shape thicknesses respectively
On substrate, thickness is 30 ± 5 microns；Then, cured to do solid work respectively with ultraviolet light uniform irradiation 5min under the conditions of 35 DEG C
Afterwards, formed paint film is detected, it is as a result as follows：
By experimental result as above it is found that coating of the present invention not only has good stability, but also paint film is formed by with preferable
Adhesive force, hardness and impact resistance and environmental resistance；
Meanwhile by embodiment 1 and the formed paint film property comparison of embodiment 2,3 coating it is found that host agent and hardener dose
Proportioning has the performance of formed paint film certain influence, and according to the proportioning of embodiment 1, obtained paint film property is more
It is excellent；
Meanwhile it being compared it is found that in coating raw material host agent ingredient by embodiment 1,4, the accounting of acrylic PU dispersion
It is also to have certain influence for being further formed by paint film, and according to the proportioning of embodiment 1, is formed by paint film
It can be more preferably；
Likewise, comparing the difference it is found that initiator type used by embodiment 1,5, and formed paint film can be influenced
The performances such as tolerance, and two kinds of initiators are used in conjunction with, hence it is evident that formed paint film property is more excellent；
Further, by embodiment 1 and the comparison of comparative example 1 it is found that preparation method technique is for coating and forms paint
Film properties are also that can have a certain impact, and according to the method in embodiment 1, then can improve further formed paint film
Performance.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of bis- curing metal coating of aqueous UV, which is characterized in that the raw material of the aqueous bis- curing metal coating of UV includes
Host agent and curing agent；
Wherein, the raw material of the host agent includes：Acrylic PU dispersion, dispersant, levelling agent, disappears at ultraviolet initiator
Infusion, water aluminum-silver slurry pigment, Yi Jishui；
Preferably, the water is deionized water；
The raw material of the curing agent includes：Water dispersible polyisocyanate lipopolymer；
Preferably, the water dispersible polyisocyanate lipopolymer is aliphatic poly carbimide polymer.
2. the bis- curing metal coating of aqueous UV according to claim 1, which is characterized in that the mass ratio of host agent and curing agent
For (10~20)：1；
Preferably, the mass ratio of host agent and curing agent is (12~18)：1；
It is furthermore preferred that the mass ratio of host agent and curing agent is 15：1.
3. the bis- curing metal coating of aqueous UV according to claim 1, which is characterized in that the ultraviolet initiator is hydroxyl
One or both of base ketone or acyl group phosphine initiator；
Preferably, the ultraviolet initiator is hydroxy-ketone and acyl group phosphine initiator.
4. the bis- curing metal coating of aqueous UV according to claim 1, which is characterized in that the dispersant is to be inhaled containing pigment
The aqueous copolymers solution of attached group；
And/or the levelling agent is silicone levelling agent；
And/or the antifoaming agent is mineral oil defoaming agent.
5. the bis- curing metal coating of aqueous UV according to claim 1, which is characterized in that main according to percent by weight
Each raw material dosage is as follows in agent：
Acrylic PU dispersion 50~75%, ultraviolet initiator 1~1.5%, dispersant 0.5~1.0%, levelling agent
0.1~0.5%, antifoaming agent 0.1~0.5%, water aluminum-silver slurry pigment 5~15% and water 20~35%；
Preferably, according to percent by weight, each raw material dosage is as follows in host agent：Acrylic PU dispersion 60~70%,
Ultraviolet initiator 1~1.5%, dispersant 0.5~1.0%, levelling agent 0.1~0.5%, antifoaming agent 0.1~0.5% are aqueous
Aluminum paste pigment 5~7% and water 20~35%；
It is furthermore preferred that according to percent by weight, each raw material dosage is as follows in host agent：Acrylic PU dispersion 60% is purple
Outer photoinitiator 1.5%, dispersant 0.8%, levelling agent 0.2%, antifoaming agent 0.1%, water aluminum-silver slurry pigment 6%, Yi Jiyu
The water of amount.
6. the preparation method of the bis- curing metal coating of aqueous UV described in any one of claim 1-5, which is characterized in that described
Preparation method includes the following steps：
Each raw material of host agent is mixed, host agent is obtained, is then mixed host agent with curing agent to get to the bis- solidifications of the aqueous UV
Metallic paint.
7. preparation method according to claim 6, which is characterized in that the preparation method of the host agent includes the following steps：
Under agitation, into acrylic PU dispersion, the ultraviolet initiator dissipated with partial moisture is added；
Then, antifoaming agent and levelling agent is added；
Then, it is added with the scattered water aluminum-silver slurry pigment of dispersant and partial moisture；
Finally, the water of surplus is added, and is uniformly mixed to get to host agent.
8. preparation method according to claim 7, which is characterized in that the preparation method of the host agent includes the following steps：
Ultraviolet initiator is dissipated into 10~15min with partial moisture, obtains the ultraviolet initiator dissipated with partial moisture；
And/or water aluminum-silver slurry pigment disperses under the rotating speed of 200~300r/min with dispersant, part water to 15~
20min is obtained with the scattered water aluminum-silver slurry pigment of dispersant and partial moisture.
9. the application of the bis- curing metal coating of aqueous UV described in any one of claim 1-5, which is characterized in that including：
The bis- curing metal coating of aqueous UV described in any one of claim 1-5 are coated on substrate surface, are then carried out
UV cures and/or heat cure.
10. application according to claim 9, which is characterized in that the base material is in wooden, metal or plastic basis material
One or more.
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| CN110669427A (en) * | 2019-11-07 | 2020-01-10 | 三河亮克威泽工业涂料有限公司 | Two-component water-based UV coating, preparation method and application thereof, and coating piece |
| CN112662306A (en) * | 2020-12-09 | 2021-04-16 | 北京北方车辆集团有限公司 | Water-based UV dual-curing metal coating and preparation method thereof |
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Application publication date: 20180907 |