CN109266134A - Water-based metal baking vanish and preparation method thereof - Google Patents
Water-based metal baking vanish and preparation method thereof Download PDFInfo
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- CN109266134A CN109266134A CN201810844427.8A CN201810844427A CN109266134A CN 109266134 A CN109266134 A CN 109266134A CN 201810844427 A CN201810844427 A CN 201810844427A CN 109266134 A CN109266134 A CN 109266134A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D7/20—Diluents or solvents
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Abstract
The present invention relates to a kind of water-based metal baking vanish and preparation method thereof, water-based metal baking vanish, each components including following mass parts: 40 parts -60 parts of water-based acrylic resin；10 parts -30 parts of amino resins；0.1 part -1.5 parts of levelling agent；1 part -10 parts of neutralizer；5 parts -20 parts of cosolvent；5 parts -20 parts of water.Above-mentioned water-based metal baking vanish; it is film forming matter by using 40 parts -60 parts of water-based acrylic resins and 10 parts -30 parts of amino resins; under its high-temperature baking when in use; generate cross-linking reaction; continuous phase is formed in metal surface; decoration and protective effect are risen to metal surface, while there is every characteristic such as high adhesion force, high rigidity, salt spray resistance, water boiling resistance, wear-resisting.Reduce organic solvent to endanger construction operation, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.It is able to solve the conventional pinhole and prickly heat problem that water-based metal baking vanish occurs.
Description
Technical field
The present invention relates to baking vanish technical fields, more particularly to a kind of water-based metal baking vanish and preparation method thereof.
Background technique
With the development of household electrical appliances, coatings industry, household appliance coating specification is more intended to greenization, environmental protection, and environmental protection is wanted
Ask also higher and higher.This just puts forward higher requirements coating material production processing, same but also household appliance is in coating process, use
Environment-friendly quality and surface requirements in the process is higher and higher.
In traditional household electrical appliances coating process, used coating is mostly solvent based coating.The environmental protection of solvent based coating
Property it is poor, construction safety harm it is larger.Solvent based coating is in spraying process, and solvent is readily volatilized and pollute environment in coating,
And solvent flashing injures larger, the health of crisis construction personnel to construction.
For water-based metal baking vanish using water as solvent, the specific heat capacity of water is high.With the solvent of common solvent based coating on the market
It compares, the rate of volatilization of water is lower, and water is nontoxic, so water-based metal baking vanish is small to construction worker's injury.Solvent simultaneously
Type paint is lower relative to water paint utilization rate, so that solvent-based paints unit cost is relatively high.However, current market
On the water-based metal baking vanish developed be easy to produce pin hole and prickly heat during high-temperature baking, seriously affect water-based stoving paint
Application and popularization.
Summary of the invention
Based on this, it is necessary to provide a kind of feature of environmental protection preferably, construction harmfulness is smaller and is able to solve pin hole and miliaria
Water-based metal baking vanish of subproblem and preparation method thereof.
A kind of water-based metal baking vanish, each component including following mass parts:
It in one of the embodiments, further include 1 part -10 parts of pigment.
The levelling agent is polyether siloxane copolymer solution, organic modified polyorganosiloxane in one of the embodiments,
At least one of solution and nonionic surface active agent solution.
The levelling agent is BYK-333 in one of the embodiments,.
The neutralizer is ammonium hydroxide, triethanolamine, N, N- dimethylethanolamine, dimethyl in one of the embodiments,
At least one of aminoethanolamine and 2-amino-2-methyl-1-propanol.
The cosolvent is ethyl alcohol, ethylene glycol, propylene glycol, butyl glycol ether and n-butanol in one of the embodiments,
At least one of.
In one of the embodiments, include each component of following mass parts:
The water is pure water in one of the embodiments,.
The cosolvent is mixed propyl alcohol and n-butanol in one of the embodiments, wherein the mass parts of the n-butanol
It is 5 parts -8 parts, the mass parts of the mixed propyl alcohol are 5 parts -8 parts.
A kind of preparation method of water-based metal baking vanish as described above, the preparation method of the water-based metal baking vanish include such as
Lower step:
Water-based acrylic resin and amino resins are mixed, the first mixture is obtained；
Pigment is added into first mixture and levelling agent is mixed, obtains the second mixture；
Neutralizer is added into second mixture and cosolvent is mixed, obtains third mixture；
Water is added into the third mixture to be mixed, obtains the water-based metal baking vanish.
Above-mentioned water-based metal baking vanish, by using 40 parts -60 parts of water-based acrylic resins and 10 parts -30 parts of amino tree
Rouge is film forming matter, under high-temperature baking when in use, generates cross-linking reaction, continuous phase is formed in metal surface, to metal
Decoration and protective effect are played in surface, while having every characteristic such as high adhesion force, high rigidity, salt spray resistance, water boiling resistance, wear-resisting.It is logical
It crosses and 1 part -10 parts of neutralizer is added into 40 parts of -60 parts of water-based acrylic resins and 10 parts of -30 parts of amino resins, with acrylic acid
Carboxyl in resin reacts forming salt, so that system is water-soluble, forms water-soluble metal baking vanish system, can reduce apply in this way
The volatilization of organic solvent during work spraying operation reduces organic solvent and endangers construction operation, nontoxic, low volatility is organic
Compound, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.By being added 0.1 part -1.5 parts of levelling agent
With 5 parts -20 parts of cosolvent, with 40 parts of -60 parts of water-based acrylic resins, 10 parts of -30 parts of amino resins and 1 part -10 of neutralizer
Part enables to water-based metal baking varnish coating surface smooth when being used together, and the water-based metal baking vanish be added pigment it
Afterwards, compatibility is also preferable, is able to solve conventional pinhole and prickly heat problem that water-based metal baking vanish occurs.
The water-based metal baking vanish, can be widely applied to the substrates such as metal aluminium, stainless steel, galvanized sheet, tinplate, be a
The environment-friendly water-based industrial paint product of performance brilliance.For the water-based metal baking vanish using water as solvent, water compares other solvent based coatings
Cost it is low, vast resources can be saved.The risk of fire when can also eliminate construction, improving, construction operation environment is same
When, and water volatility is lower compared to oiliness volatility, so that the utilization rate of the water-based metal baking vanish is also compared to the baking vanish of oiliness
Utilization rate is high.
Detailed description of the invention
The step of Fig. 1 is the preparation method of the water-based metal baking vanish of one embodiment of the invention is schemed.
Specific embodiment
To facilitate the understanding of the present invention, in order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, under
In conjunction with attached drawing, specific embodiments of the present invention will be described in detail in face.It is explained in the following description many details
To facilitate a thorough understanding of the present invention, giving better embodiment of the invention in attached drawing.But the present invention can be with many not
With form realize, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making
It makes the present disclosure more fully understandable.The present invention can be to be much different from other way described herein
Implement, those skilled in the art can make similar improvements without departing from the spirit of the invention, therefore the present invention not by
The limitation of following public specific embodiment.In addition, term " first ", " second " are used for description purposes only, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In the description of the present invention, the meaning of " plurality " is
At least two, such as two, three etc., unless otherwise specifically defined.In the description of the present invention, the meaning of " several "
It is at least one, such as one, two etc., unless otherwise specifically defined.Unless otherwise defined, institute used herein
Some technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.Institute herein
The term used is only for the purpose of describing specific embodiments, it is not intended that in the limitation present invention.It is used herein
Term " and/or " it include any and all combinations of one or more related listed items.
For example, a kind of water-based metal baking vanish, which is characterized in that each component including following mass parts:
Above-mentioned water-based metal baking vanish, by using 40 parts -60 parts of water-based acrylic resins and 10 parts -30 parts of amino tree
Rouge is film forming matter, under high-temperature baking when in use, generates cross-linking reaction, continuous phase is formed in metal surface, to metal
Decoration and protective effect are played in surface, while having every characteristic such as high adhesion force, high rigidity, salt spray resistance, water boiling resistance, wear-resisting.It is logical
It crosses and 1 part -10 parts of neutralizer is added into 40 parts of -60 parts of water-based acrylic resins and 10 parts of -30 parts of amino resins, with acrylic acid
Carboxyl in resin reacts forming salt, so that system is water-soluble, forms water-soluble metal baking vanish system, can reduce apply in this way
The volatilization of organic solvent during work spraying operation reduces organic solvent and endangers construction operation, nontoxic, low volatility is organic
Compound, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.By being added 0.1 part -1.5 parts of levelling agent
With 5 parts -20 parts of cosolvent, with 40 parts of -60 parts of water-based acrylic resins, 10 parts of -30 parts of amino resins and 1 part -10 of neutralizer
Part enables to water-based metal baking varnish coating surface smooth when being used together, and the water-based metal baking vanish be added pigment it
Afterwards, compatibility is also preferable, is able to solve conventional pinhole and prickly heat problem that water-based metal baking vanish occurs.
Water-based metal baking vanish further includes 1 part -10 parts of pigment in one of the embodiments,.It so, it is possible to meet different use
Needs of the family to water-based metal baking vanish color.And be added after pigment, compatibility is also preferable, is able to solve water-based metal baking vanish and goes out
Existing conventional pinhole and prickly heat problem.
In one embodiment, the levelling agent is that polyether siloxane copolymer solution, organic modified polyorganosiloxane are molten
At least one of liquid and nonionic surface active agent solution.By the way that levelling agent is added, with water-based acrylic resin, amino
When resin is used together with neutralizer, the appearance of water-based metal baking vanish can be adjusted, so that after water-based metal baking vanish use
Surface it is more smooth and smooth.Preferably, the levelling agent is BYK-333, by it has been found that by using levelling agent
For BYK-333, when being used together with water-based acrylic resin, amino resins with neutralizer, aqueous gold can be further adjusted
The appearance for belonging to baking vanish, so that the surface after water-based metal baking vanish use is more smooth and smooth.
The neutralizer is ammonium hydroxide, triethanolamine, dimethylaminoethanol amine and 2- ammonia in one of the embodiments,
At least one of base-2- methyl-1-propyl alcohol.By the way that neutralizer is added, together with water-based acrylic resin and amino resins
In use, it reacts forming salt with the carboxyl in acrylic resin, so that system is water-soluble, water-soluble metal baking vanish body is formed
System, can reduce the volatilization of organic solvent in construction spraying operation process in this way, reduces organic solvent and endangers construction operation,
Nontoxic, low VOC, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.Preferably, institute
Neutralizer N, N- dimethylethanolamine are stated, in this way, it preferably can react forming salt with the carboxyl in acrylic resin, so that
System is water-soluble, forms water-soluble metal baking vanish system, can reduce organic solvent in construction spraying operation process in this way
Volatilization reduces organic solvent and endangers construction operation, nontoxic, low VOC, so that the water-based metal baking vanish
The feature of environmental protection is preferable, and harm of constructing is smaller.
The cosolvent is ethyl alcohol, ethylene glycol, propylene glycol, butyl glycol ether and n-butanol in one of the embodiments,
At least one of.By the way that cosolvent is added, 40 parts -60 parts of water-based acrylic resin and 10 parts -30 parts of ammonia are enabled to
Base resin can be better dispersed in water after neutralizer processing, so that whole Miscibility is more preferable, it can be into one
Step ground solves the problems, such as the conventional pinhole and prickly heat that water-based metal baking vanish occurs.Preferably, the cosolvent is mixed propyl alcohol and just
Butanol.In this way, whole Miscibility is more preferable, can further solve the conventional pinhole of water-based metal baking vanish appearance with
And prickly heat problem.By the way that cosolvent is selected as n-butanol and mixed propyl alcohol, make together with N, N- dimethylethanolamine and BYK-333
Used time can adjust paint film drying gradient, prevent the bad phenomenons such as pin hole, prickly heat from generating, and improve external coating effect.It is preferred that
, the mass parts of the n-butanol are 5 parts -8 parts, and the mass parts of the mixed propyl alcohol are 5 parts -8 parts.
In one preferred embodiment, water-based metal baking vanish includes each component of following mass parts:
Using the water-based metal baking vanish of above-mentioned each component, whole Miscibility is more preferable, can further solve
The conventional pinhole and prickly heat problem that certainly water-based metal baking vanish occurs.
It is further preferred that water-based metal baking vanish includes each component of following mass parts:
Using the water-based metal baking vanish of above-mentioned each component, whole Miscibility is more preferable, can further solve
The conventional pinhole and prickly heat problem that certainly water-based metal baking vanish occurs.
Still more preferably, water-based metal baking vanish includes each component of following mass parts:
Using the water-based metal baking vanish of above-mentioned each component, whole Miscibility is more preferable, can further solve
The conventional pinhole and prickly heat problem that certainly water-based metal baking vanish occurs.
Above-mentioned water-based metal baking vanish, by using 40 parts -60 parts of water-based acrylic resins and 10 parts -30 parts of amino tree
Rouge is film forming matter, under high-temperature baking when in use, generates cross-linking reaction, continuous phase is formed in metal surface, to metal
Decoration and protective effect are played in surface, while having every characteristic such as high adhesion force, high rigidity, salt spray resistance, water boiling resistance, wear-resisting.It is logical
It crosses and 1 part -10 parts of neutralizer is added into 40 parts of -60 parts of water-based acrylic resins and 10 parts of -30 parts of amino resins, with acrylic acid
Carboxyl in resin reacts forming salt, so that system is water-soluble, forms water-soluble metal baking vanish system, can reduce apply in this way
The volatilization of organic solvent during work spraying operation reduces organic solvent and endangers construction operation, nontoxic, low volatility is organic
Compound, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.By being added 0.1 part -1.5 parts of levelling agent
With 5 parts -20 parts of cosolvent, with 40 parts of -60 parts of water-based acrylic resins, 10 parts of -30 parts of amino resins and 1 part -10 of neutralizer
Part enables to water-based metal baking varnish coating surface smooth when being used together, and the water-based metal baking vanish be added pigment it
Afterwards, compatibility is also preferable, is able to solve conventional pinhole and prickly heat problem that water-based metal baking vanish occurs.
The water-based metal baking vanish, can be widely applied to the substrates such as metal aluminium, stainless steel, galvanized sheet, tinplate, be a
The environment-friendly water-based industrial paint product of performance brilliance.For the water-based metal baking vanish using water as solvent, water compares other solvent based coatings
Cost it is low, vast resources can be saved.The risk of fire when can also eliminate construction, improving, construction operation environment is same
When, and water volatility is lower compared to oiliness volatility, so that the utilization rate of the water-based metal baking vanish is also compared to the baking vanish of oiliness
Utilization rate is high.
It is understood that the preparation method of water-based metal baking vanish also has important influence to the performance of water-based metal baking vanish.
In order to which further such that whole Miscibility is more preferable, the present invention also provides a kind of preparation methods of water-based metal baking vanish, ask
Refering to fig. 1, the preparation method of water-based metal baking vanish includes the following steps:
S110: water-based acrylic resin and amino resins are mixed, the first mixture is obtained；
6 are mixed for example, water-based acrylic resin and amino resins are mixed under the revolving speed of 450rpm~590rpm
~10 minutes, so that water-based acrylic resin and amino resins are uniformly mixed.Preferably, by water-based acrylic resin and amino tree
Rouge is mixed under the revolving speed of 580rpm and is mixed 7.5 minutes, so that water-based acrylic resin and amino resins mixing are more equal
It is even.
S120: pigment being added into first mixture and levelling agent is mixed, and obtains the second mixture；
For example, being mixed under the revolving speed of 450rpm~590rpm after pigment and levelling agent is added into first mixture
Stirring 6~10 minutes.Preferably, it is mixed under the revolving speed of 500rpm after pigment and levelling agent being added into first mixture
Stirring 6 minutes so, it is possible so that pigment and levelling agent mixing are more uniform.And successively mixed by above-mentioned, through applying for human hair
Existing, so that subsequent system is more stable, water-based metal baking vanish is more smooth using rear surface, can further solve pin hole
And prickly heat problem.
S130: neutralizer being added into second mixture and cosolvent is mixed, and obtains third mixture；
In the present embodiment, mixed by water-based acrylic resin and amino resins mixing and then addition pigment and levelling agent
It closes, neutralizer and cosolvent mixing is then added, so that water-based acrylic resin, amino resins and pigment can be more preferable
Ground is compatible in water, and Miscibility is preferable, enables to subsequent system more stable, and water-based metal baking vanish uses rear surface more
To be smooth, pin hole and prickly heat can be further solved the problems, such as.
For example, addition neutralizer and cosolvent mix under the revolving speed of 450rpm~590rpm into second mixture
Stirring 6~10 minutes.Preferably, neutralizer and cosolvent are added into second mixture to turn in 450rpm~590rpm
Speed is lower to be mixed 9 minutes.It so, it is possible so that subsequent system is more stable, water-based metal baking vanish uses rear surface more light
It is sliding, it can further solve the problems, such as pin hole and prickly heat.
S140: water is added into the third mixture and is mixed, obtains the water-based metal baking vanish.
For example, water is added into the third mixture is mixed 10~12 points under the revolving speed of 500rpm~590rpm
Clock.Preferably, water is added into the third mixture to be mixed 12 minutes under the revolving speed of 560rpm.
It so, it is possible not generate reunion and precipitating, and coating state is sticky so that water-based metal baking vanish compatibility is splendid
Liquid, and can be stabilized under water environment conditions.
Water-based acrylic resin and amino resins are being mixed and then are being added by the preparation method of above-mentioned water-based metal baking vanish
Enter pigment and levelling agent mixing, neutralizer and cosolvent mixing is then added, so that water-based acrylic resin, amino tree
Rouge and pigment can be preferably compatible in water, and Miscibility is preferable, enable to subsequent system more stable, water-based metal
Baking vanish is more smooth using rear surface, can further solve the problems, such as pin hole and prickly heat.Enable to water-based metal baking vanish phase
Capacitive is splendid, does not generate reunion and precipitating, and coating state is thick liquid, and can be stabilized under water environment conditions.
Below in the application method for providing water-based metal baking vanish.For another example, the water-based metal baking vanish in any embodiment as above
It is used using the application method of water-based metal baking vanish.The application method of the water-based metal baking vanish includes the following steps:
S210: dilution dilution agent is added in the water-based metal baking vanish, obtains dilution, wherein the diluent is water；
For example, the ratio of the water-based metal baking vanish and the diluent is 1: " 0.6-0.8 ".For example, the diluent
For pure water.Preferably, the ratio of the water-based metal baking vanish and the diluent is 1:0.75.
S220: being equably painted on metallic substrate surface for the dilution, is formed in metallic substrate surface and smears film layer；
For example, the metal base is household electrical appliances metal shell.
S230: operation is dried to the smearing film layer.
For example, 100 DEG C -200 DEG C of the temperature of the drying process, drying time 10min-30min.Preferably, described dry
115 DEG C of the temperature of dry operation, drying time 20min.
Using above-mentioned water-based metal baking vanish, it can preferably solve what traditional water-based metal baking vanish generated in baking process
Pin hole and prickly heat problem, so that household appliance surface is more aesthetically pleasing after coating.
In one embodiment, it is described operation is dried to the smearing film layer after, the water-based metal baking vanish makes
It further include following steps with method: in the epoxy resin composite material coating of the smearing film layer setting high thermal conductivity, in this way, epoxy
Resin composite materials coating not only has adhesive property but also has high thermal conductivity.In this way, further improving water-based metal
The use scope and function of baking vanish.
It continues with and provides specific embodiment the present invention is explained.
Embodiment 1
Water-based metal baking vanish includes each component of following mass parts:
Preparation method is as follows: water-based acrylic resin and amino resins are mixed 7.5 under the revolving speed of 580rpm
Minute, the first mixture is obtained, is mixed under the revolving speed of 500rpm after pigment and levelling agent is added into first mixture
Stirring 6 minutes, obtains the second mixture；Neutralizer and cosolvent are added into second mixture in 450rpm~590rpm
Revolving speed under be mixed 9 minutes and obtain third mixture；Water is added into the third mixture under the revolving speed of 560rpm
It is mixed 12 minutes, obtains the water-based metal baking vanish.
Its application method is as follows: dilution dilution agent is added in the water-based metal baking vanish, obtains dilution, wherein described
Diluent is water；Wherein, the ratio of the water-based metal baking vanish and the diluent is 1:0.75.Equably by the dilution
It is painted on metallic substrate surface, is formed in metallic substrate surface and smears film layer；Operation is dried to the smearing film layer, it is described
115 DEG C of the temperature of drying process, drying time 20min.
Embodiment 2
Unlike the first embodiment:
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
Embodiment 3
Water-based metal baking vanish includes each component of following mass parts:
It is other same as Example 1.
Embodiment 4
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
Embodiment 5
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
Comparative example 1:
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
Comparative example 2:
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
Comparative example 3
Water-based metal baking vanish includes each component of following mass parts:
Other methods are same as Example 1.
By the water-based metal baking vanish of the various embodiments described above and each comparative example, with reference to chemical industry standard HG/T4758-2014
It is required that carrying out making sheet, the equal coating twice of test plate (panel) of water resistance, resistance to salt water, gasoline resistance and salt fog resistance, total thickness of dry film
For (50 ± 5) μm.Test plate (panel) after coating is first placed at room temperature for 10 minutes, and then 115 DEG C, dry 20min.Then performance survey is carried out
Examination.Shown in test result is as follows:
The performance test results of each embodiment of table 1 and each comparative example
As can be seen from Table 1, the water-based metal baking vanish of each embodiment provided by the invention, coating surface after use compared with
To be smooth, and pin-free and prickly heat.And in comparative example 1 into comparative example 3, there is a little pin hole and prickly heat.And each reality
The comparison that example applies example 1,2,3 with comparison is applied to show to control the mass ratio of water-based acrylic resin and amino resins in " 45-
55 ": " 15-25 " enables to coating surface pin-free and prickly heat,.And compared to each embodiment, the water-based metal of embodiment 1
Baking vanish has better hardness, impact resistance and flexible ability, shows that it is best suited for the coating of metal surface, is especially applicable in
In household electrical appliances metal shell coating.
Above-mentioned water-based metal baking vanish, by using 40 parts -60 parts of water-based acrylic resins and 10 parts -30 parts of amino tree
Rouge is film forming matter, under high-temperature baking when in use, generates cross-linking reaction, continuous phase is formed in metal surface, to metal
Decoration and protective effect are played in surface, while having every characteristic such as high adhesion force, high rigidity, salt spray resistance, water boiling resistance, wear-resisting.It is logical
It crosses and 1 part -10 parts of neutralizer is added into 40 parts of -60 parts of water-based acrylic resins and 10 parts of -30 parts of amino resins, with acrylic acid
Carboxyl in resin reacts forming salt, so that system is water-soluble, forms water-soluble metal baking vanish system, can reduce apply in this way
The volatilization of organic solvent during work spraying operation reduces organic solvent and endangers construction operation, nontoxic, low volatility is organic
Compound, so that the water-based metal baking vanish feature of environmental protection is preferable, and harm of constructing is smaller.By being added 0.1 part -1.5 parts of levelling agent
With 5 parts -20 parts of cosolvent, with 40 parts of -60 parts of water-based acrylic resins, 10 parts of -30 parts of amino resins and 1 part -10 of neutralizer
Part enables to water-based metal baking varnish coating surface smooth when being used together, and the water-based metal baking vanish be added pigment it
Afterwards, compatibility is also preferable, is able to solve conventional pinhole and prickly heat problem that water-based metal baking vanish occurs.
It should be noted that with the development of household electrical appliances, coatings industry, household appliance coating specification be more intended to greenization,
Environmental protection, required environmental requirement are also higher and higher.This just puts forward higher requirements coating material production processing, with but also family
Environment-friendly quality and surface requirements of the electric equipment in coating process, use process are higher and higher.In traditional household electrical appliances coating
Cheng Zhong, used coating are mostly solvent based coating, and due in spraying process, solvent volatilizees in coating, to construction injury compared with
Greatly, water-based metal baking vanish is using water as solvent, and water specific heat capacity is high, and rate of volatilization and common solvent on the market are lower, and water is nontoxic, institute
It is small to be injured to construction worker；Solvent-based paints are opposite with water paint utilization rate simultaneously, and unit cost is higher.Secondly, mesh
The preceding water-based metal baking vanish developed on the market is easy to produce pin hole and prickly heat, seriously affects water during high-temperature baking
Property baking vanish application and popularization.Through applicant to existing water-based metal baking vanish improve after, aqueous gold provided by the present application
Belonging to baking vanish, not only the feature of environmental protection is higher and halogen-free, and utilization rate is also opposite to be improved, and solves pin hole and prickly heat in baking process
Problem, so that household appliance surface is more aesthetically pleasing after coating.
Water-based metal baking vanish provided by the invention is more suitable for household electrical appliances metal shell, water-based metal baking vanish of the invention
It mainly include film forming matter water-based acrylic resin and water-compatible amino resin, neutralization reagent N, N- dimethylethanolamine, pigment, stream
Flat agent and pure water.Film forming matter aqueous acrylamide diluted acid resin and water-compatible amino resin generate cross-linking reaction under high temperature action,
Metal surface formed continuous phase, to metal surface rise decoration and protective effect, while have high adhesion force, high rigidity, salt spray resistance,
The items characteristic such as water boiling resistance, wear-resisting.Neutralization reagent N, N- dimethylethanolamine is added in system, with the carboxylic in acrylic resin
Base reacts forming salt, so that system is water-soluble, forms water-soluble metal baking vanish system, effectively reduces construction spraying work in this way
The volatilization of organic solvent during industry reduces organic solvent and endangers construction operation, and nontoxic, low VOC makes the novel product
With superior environmental-protecting performance.The main functions such as levelling agent, pigment are the appearances for adjusting coating, are coating surface light
Cunning is smooth, while can satisfy requirement of the different clients to color.The epoxy resin composite material coating of high thermal conductivity is set on layer,
The coating is that the modified inorganic metal powder in surface is added to be combined by epoxy resin, so that the coating not only has adhesive property
And there is high thermal conductivity.
The water-based metal baking vanish, can be widely applied to the substrates such as metal aluminium, stainless steel, galvanized sheet, tinplate, be a
The environment-friendly water-based industrial paint product of performance brilliance.Using water as solvent, vast resources is saved；The danger of fire when eliminating construction
Property, improving construction operation environment simultaneously, the utilization rate of this water-based metal baking vanish is also high compared to the baking vanish utilization rate of oiliness.
Technical problems to be solved needed for the present invention are to provide the aqueous of a epipodium guaranteed request suitable for household appliances
Metal baking finish, in order to solve organic solvent in work progress and volatilize, construction is made in solvent sucking when reducing construction operation
Industry personnel harm.In order to solve the above-mentioned technical problem the present invention, provides the water-based metal baking vanish of a epipodium guaranteed request, paint construction
In baking process, pin hole, prickly heat are not generated, while having both high rigidity, adhesive force, rub resistance, high-low temperature resistant cooling thermal impact, salt tolerant
The performances such as mist, weatherability.Film forming matter water-based acrylic resin and amino resins, electric metal case surface of being in form continuous painting
Layer, is protected and is decorated to household electrical appliances metal shell.Water-based acrylic resin and amino resins have adhesive property, with metal element
Bonding interface repercussion effect between material is excellent.Water-based acrylic resin and amino resins, after baking cross-linking reaction
The continuous film that certain degree of hardness requires is formed on metal material surface.Contain a certain proportion of carboxylic on water-based acrylic resin branch
Base group, stable dispersion, formation under water environment conditions after a small amount of organic neutralization reagent N, N- dimethylethanolamine is added
Water-based stoving paint system.Film does not have water-soluble after dried coating film crosslinking, while having both high-low temperature resistant cooling thermal impact, rub resistance etc.
Characteristic.Auxiliary agent, pigment and resin matrix in system have good compatibility, do not generate reunion and precipitating, after coating, drying not
Coating surface effect is influenced, high-temperature baking does not generate pin hole, prickly heat.
Because matrix resin is water-based acrylic resin and amino resins, by neutralization reagent organic amine and mistake
Afterwards, main force's film-forming resin is water-soluble, and is stabilized under water environment conditions, after auxiliary agent, pigment is added, auxiliary agent, face
Material is splendid with film-forming resin compatibility, does not generate reunion and precipitating.Coating state is thick liquid, after being diluted before construction with pure water
It is sprayed.In spraying process, a small amount of moisture evaporation endangers small and nonflammable, construction safety coefficient to construction worker
Height toasts drying process, and water-based acrylic resin and amino resins carry out cross-linking reaction, and water vapour volatilization, environmental pollution is small,
After paint film is dry, hardness of paint film is high, the performances such as salt spray resistance, high-low temperature resistant cooling thermal impact, wear-resisting good to substrate adhesive force.Its
Secondary, water-based acrylic resin, amino resins are halogen-free, more environmentally friendly.For another example, the auxiliary agent is levelling agent, neutralizer and helps
Solvent.Water-based acrylic resin crosslinks at high temperature with amino resins, not soluble in water after paint film is dry, and has excellent
The performances such as hardness, adhesive force, high-low temperature resistant cooling thermal impact, salt spray resistance, rub resistance.Cosolvent n-butanol, mixed propyl alcohol are mainly used for
Paint film drying gradient is adjusted, prevents the bad phenomenons such as pin hole, prickly heat from generating, improves external coating effect.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.It should be noted that " in an embodiment ", " example of the application
Such as ", " for another example ", it is intended to the application is illustrated, rather than for limiting the application.Embodiment described above only table
Several embodiments of the invention are reached, the description thereof is more specific and detailed, and but it cannot be understood as to patent of invention
The limitation of range.It should be pointed out that for those of ordinary skill in the art, in the premise for not departing from present inventive concept
Under, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Therefore, the protection of the invention patent
Range should be determined by the appended claims.
Claims (10)
1. a kind of water-based metal baking vanish, which is characterized in that each component including following mass parts:
2. water-based metal baking vanish according to claim 1, which is characterized in that further include 1 part -10 parts of pigment.
3. water-based metal baking vanish according to claim 1, which is characterized in that the levelling agent is polyether siloxane copolymer
At least one of solution, organic modified polyorganosiloxane solution and nonionic surface active agent solution.
4. water-based metal baking vanish according to claim 3, which is characterized in that the levelling agent is BYK-333.
5. water-based metal baking vanish according to claim 1, which is characterized in that the neutralizer be ammonium hydroxide, triethanolamine, N,
At least one of N- dimethylethanolamine, dimethylaminoethanol amine and 2-amino-2-methyl-1-propanol.
6. water-based metal baking vanish according to claim 1, which is characterized in that the cosolvent is ethyl alcohol, ethylene glycol, the third two
At least one of alcohol, butyl glycol ether and n-butanol.
7. water-based metal baking vanish according to claim 1, which is characterized in that each component including following mass parts:
8. water-based metal baking vanish according to claim 7, which is characterized in that the water is pure water.
9. water-based metal baking vanish according to claim 7, which is characterized in that the cosolvent is to mix propyl alcohol and n-butanol,
Wherein, the mass parts of the n-butanol are 5 parts -8 parts, and the mass parts of the mixed propyl alcohol are 5 parts -8 parts.
10. a kind of preparation method of water-based metal baking vanish as claimed in claim 7, which is characterized in that the water-based metal is roasting
The preparation method of paint includes the following steps:
Water-based acrylic resin and amino resins are mixed, the first mixture is obtained；
Pigment is added into first mixture and levelling agent is mixed, obtains the second mixture；
Neutralizer is added into second mixture and cosolvent is mixed, obtains third mixture；
Water is added into the third mixture to be mixed, obtains the water-based metal baking vanish.
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| CN201810844427.8A CN109266134A (en) | 2018-07-27 | 2018-07-27 | Water-based metal baking vanish and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810844427.8A CN109266134A (en) | 2018-07-27 | 2018-07-27 | Water-based metal baking vanish and preparation method thereof |
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| CN109266134A true CN109266134A (en) | 2019-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240846A (en) * | 2019-07-10 | 2019-09-17 | 建纶电器工业（中山）有限公司 | A kind of spraying method of water paint and water paint |
| CN113083643A (en) * | 2019-12-23 | 2021-07-09 | 扬州地标金属制品有限公司 | Metal product process method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842413A (en) * | 1955-11-22 | 1960-07-27 | Vianova Kunstharz Ag | Process for producing aqueous stoving varnishes |
| CN102618133A (en) * | 2012-03-31 | 2012-08-01 | 广州集泰化工有限公司 | High-temperature resistant and strong corrosive resistant water-based baking varnish for metal and preparation method for baking varnish |
-
2018
- 2018-07-27 CN CN201810844427.8A patent/CN109266134A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842413A (en) * | 1955-11-22 | 1960-07-27 | Vianova Kunstharz Ag | Process for producing aqueous stoving varnishes |
| CN102618133A (en) * | 2012-03-31 | 2012-08-01 | 广州集泰化工有限公司 | High-temperature resistant and strong corrosive resistant water-based baking varnish for metal and preparation method for baking varnish |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240846A (en) * | 2019-07-10 | 2019-09-17 | 建纶电器工业（中山）有限公司 | A kind of spraying method of water paint and water paint |
| CN113083643A (en) * | 2019-12-23 | 2021-07-09 | 扬州地标金属制品有限公司 | Metal product process method |
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Application publication date: 20190125 |