CN107699085A - Water-based paint compositions and preparation method thereof and the base material with its coating - Google Patents
Water-based paint compositions and preparation method thereof and the base material with its coating Download PDFInfo
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- CN107699085A CN107699085A CN201710919226.5A CN201710919226A CN107699085A CN 107699085 A CN107699085 A CN 107699085A CN 201710919226 A CN201710919226 A CN 201710919226A CN 107699085 A CN107699085 A CN 107699085A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/103—Anti-corrosive paints containing metal dust containing Al
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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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention discloses a kind of water-based paint compositions, and it includes resin Composition, passivation component and electrosilvering aluminium paste.Invention additionally discloses a kind of method for preparing water-based paint compositions, this method includes：(1) pre-dispersed resin Composition is mixed with electrosilvering aluminium paste and disperseed the suitable time, form pre-dispersed liquid (a)；(2) part passivation component, appropriate cosolvent and auxiliary agent are added in pre-dispersed liquid (a), are dispersed with stirring the suitable time, stand overnight, form pre-dispersed liquid (b)；(3) the passivation component of remainder is added in pre-dispersed liquid (b), disperses, stand overnight, form pre-dispersed liquid (c)；(4) cosolvent is added to pre-dispersed liquid (c), stirs and disperse the suitable time, form pre-dispersed liquid (d)；(5) auxiliary agent and water are added to pre-dispersed liquid (d), forms the water-based paint compositions.The further open base material coated with the water-based paint compositions of the invention.
Description
Technical field
The present invention relates to a kind of water-based paint compositions and preparation method thereof, are used for metal base in particular to one kind
Water-based electrosilvering coating composition and preparation method thereof.The invention further relates to the base coated with the water-based paint compositions
Material.
Background technology
Plating silver coating in the market is mainly based on solvent-borne type plating silver coating.Solvent-borne type plating silver coating is main
It is prepared using electrosilvering aluminium powder, resin, organic solvent, auxiliary agent etc..Electrosilvering aluminium powder generally use aluminium powder particle diameter is in about 6-
Between 16 μm and aluminium pigment of the aluminium flake thickness between 18-50nm.Such pigment has high radius-thickness ratio, and color is fine and close, possesses
Chromium-plating effect, it is smooth fine and close, there is high covering power and ultra-thin.However, flash-point to be present low, inflammable, no for solvent-borne type plating silver coating
The problems such as conductive and VOC emission.
There is also a small amount of water-based plating silver coating in the market.Water-based plating silver coating has easy cleaning, flash-point height, pollution
Low advantage.Because electrosilvering aluminium paste particle is thin, for aluminium flake than relatively thin, specific surface area is big, and aluminium belongs to active metal in itself, can
Carry out quickly reacting (2Al+6H with water at normal temperatures2O=2Al (OH)3↓+3H2↑), therefore electrosilvering aluminium paste is needed before carrying out
Processing just can apply in water-based system.
Water-based plating silver coating in the market mainly has two types.One kind is aerosil over-plated
Silver.The reaction principle and the visible Fig. 1 of schematic diagram of the water-based plating silver coating of this type.
The characteristics of aerosil over-plated silver, includes：Aluminium pigment preparation technology is complicated, and price is high, is usual vehicle
2-3 times of type electrosilvering aluminium paste, water-tolerant, storage-life length, but color effects are bad.
Another type of water-based plating silver coating is prepared using the electrosilvering aluminium paste of mixing organophosphorus compounds resin treatment,
It is advantageous that handling process is simple, moderate；Shortcoming is that aluminium paste storage-life in water is short, and stability is poor.
Water-based plating silver coating needs to solve the problems, such as to include at present：Color is not bright enough, does not reach solvent-borne type electrosilvering
Coating effect, storage period is short, and stability is poor, additionally needs to reduce production cost.
Therefore, demand be present to the water-based plating silver coating for possessing following advantages in this area：The water-based electrosilvering applies
Material comparable to solvent-borne type with electroplating the color effects of silver coating, long term storage stability and cost-effective.
The content of the invention
The present invention relates to a kind of water-based paint compositions, and it includes resin Composition, passivation component and electrosilvering aluminium paste.
The invention further relates to a kind of method for preparing water-based paint compositions, this method includes：(1) by pre-dispersed resin
Component is mixed with electrosilvering aluminium paste and disperseed the suitable time, forms pre-dispersed liquid (a)；(2) by part passivation component, appropriate
Cosolvent and auxiliary agent are added in pre-dispersed liquid (a), are dispersed with stirring the suitable time, are stood overnight, and form pre-dispersed liquid (b)；
(3) the passivation component of remainder is added in pre-dispersed liquid (b), disperses, stand overnight, form pre-dispersed liquid (c)；(4) to
Pre-dispersed liquid (c) adds appropriate cosolvent, stirs and disperses suitable time, forms pre-dispersed liquid (d)；(5) to pre-dispersed liquid (d)
Auxiliary agent and water are added, forms the water-based paint compositions.
The invention further relates to the base material coated with water-based paint compositions, the water-based paint compositions include resin
Component, passivation component and electrosilvering aluminium paste.
Brief description
Fig. 1 shows the preparation principle of existing water-based aerosil over-plated silver coating and the silver strip formed
Schematic diagram.
Fig. 2 shows showing for the dispersion that the electrosilvering aluminium paste of passivated processing is formed after placement being mixed with water 1 hour
The schematic diagram for the dispersion that intention (a) and the electrosilvering aluminium paste of unpassivated processing are formed after placement being mixed with water 1 hour
(b)。
Embodiment
For the purpose of following detailed description, it will be appreciated that the present invention can use the change of various replacements and step suitable
Sequence, unless specifically stated conversely.In addition, except in any operational instances, or in the case of otherwise pointing out, represent
Such as all numerals of the amount of the composition used in description and claims should be understood in all cases by term
" about " modify.Therefore, unless indicated to the contrary, the numerical parameter otherwise illustrated in the following description and appended dependent claims is root
The approximation changed according to the expected performance of the invention to be obtained.At least it is not intended to the applicable of doctrine of equivalents being limited in
In the range of claim, each numerical parameter at least according to the number of the effective digital of report and should pass through the common house of application
Enter technology to explain.
Although the broad range of number range and parameter that illustrate the present invention are approximations, listed in instantiation
Numerical value is reported as accurately as possible.However, any numerical value inherently includes the standard deviation by being found in its each self-test measurement
The some errors necessarily led to.
Moreover, it will be appreciated that any number range as described herein is intended to include being included into all subranges therein.Example
Such as, the scope of " 1 to 10 " is intended to include all sub- models between (and including) described minimum value 1 and the maximum 10
Enclose, that is, there is the minimum value equal to or more than 1 and the maximum equal to or less than 10.
In this application, unless expressly stated otherwise, the use of odd number includes plural number and plural number includes odd number.In addition,
In the application, unless expressly stated otherwise, "and/or" otherwise is represented using "or", even if can clearly make in some cases
Use "and/or".In addition, in this application, unless expressly stated otherwise, otherwise using " one (a) " or " one (an) ", expression is " at least
One ".For example, " one kind " polymer, " one kind " coating composition etc. refers to any one or more in these articles.
As it was previously stated, existing water-based plating silver coating is present, color effects are poor, bin stability is low or it is high to prepare cost
The shortcomings of high.The present invention is intended to provide a kind of novel aqueous electrosilvering coating composition, the coating composition pass through special process
Prepare, it is relatively low that excellent color effects, long term storage stability and cost of manufacture can be achieved.
Resin Composition is included according to the water-based electrosilvering coating composition of the present invention.The resin Composition that can be used in the present invention
Can be miscible with water under strong stirring, clear or translucent state can be presented in the solution after dissolving.Resin group
Dividing may include the mixture of a kind of resin or a variety of different resins.It can be used and known in the art can be used for electroplating silver coating
All resins.It is, for example, possible to use resin include but is not limited to thermosetting acrylic resin, saturation or unsaturated polyester (UP) tree
Fat, dispersions of polyurethanes, acrylic emulsion, any mixture of amino resins and above-mentioned resin.
Resin Composition can the weight meter based on water-based electrosilvering coating composition with about 2-15wt%, preferably from about 3-
10wt% amount is present in the coating composition.If resin content is less than 2wt%, easily produce that adhesive force is bad asks
Topic；And resin content is higher than 15wt%, then electrosilvering aluminium powder color effects can be influenceed, such as metal sense declines, color is not bright enough
It is bright.
The example of commercially available resin Composition includes but is not limited to：From in Ineos (INEOS), Taiwan Changchun chemistry,
The amino resins of the companies such as profound new (Allnex), Taiwan Changxing chemistry；From handsome section's chemical industry, three well Specialty Chemicals, South Korea great Jin,
The company such as Japanese DIC, Acker agate, Niu Peisi, DSM, profound new (Allnex), Beijing Gao Meng new materials, Shanghai Xinhua resin
Acrylic resin；From Niu Peisi, DSM, DOW Chemical, handsome section's chemical industry polyester resin；Poly- ammonia from Bayer, Henkel
Ester resin；And any mixture of above-mentioned resin.
Electrosilvering aluminium paste is included according to the water-based electrosilvering coating composition of the present invention.Electrosilvering aluminium paste can pass through this area
It is prepared by interior known any method.For example, it can be prepared as follows for the electrosilvering aluminium paste in coating composition of the present invention.Close
Under vacuum environment, using physical vaporous deposition, fine aluminium block or aluminium wire is set to form one layer of electrosilvering aluminum slice in deposited on supports；
By way of solvent soaking, it is detached from the carrier electrosilvering aluminum slice, while collect aluminum slice；It is by stirring technique that aluminium is thin
Piece is ground into the small aluminium flake of appropriate particle diameter；Then by screening mode, the aluminium paste with proper range particle diameter is screened out to come, system
Obtain electrosilvering aluminium paste.
Electrosilvering aluminium paste can the weight meter based on water-based electrosilvering coating composition with about 1-10wt%, preferably from about 2-
6wt% amount is present in the coating composition.
The example of commercially available electrosilvering aluminium paste includes but is not limited to：Come from star platinum connection pigment, love card pigment, Japan
The electrosilvering aluminium paste of the pigment companies such as the positive chemistry of Aluminum, titanium, BASF, Schlenk.
According to the water-based electrosilvering coating composition of the present invention also comprising passivation component, the component is used to be passivated electrosilvering aluminium
Slurry, make aluminium surface that water-fast and resistance to chemical corrosion be presented.Passivation component includes strong oxidizer, and the strong oxidizer is included but not
Be limited to it is following in one kind or any mixture of two or more：Nitrate, chromate, molybdate, manganate, chloric acid
Salt, bromate, persulfate and bismuthates.For example, strong oxidizer can include nitrate, chromate, molybdate, manganate,
Any of chlorate, bromate, persulfate and bismuthates, or weight ratio can be included 9:1-1:9 (for example, 8:
1、7:1、6:1、5:1、4:1、3:1、2:1、1:1、1:2、1:3、1:4、1:5、1:6、1:7、1:8) above-mentioned any two in the range of
The mixture of kind oxidant, such as bromate and chromic acid salt mixture, manganate and bromate mixture, manganate and chromate
Mixture, manganate and molybdic acid salt mixture, molybdate and chromic acid salt mixture, molybdate and bromate mixture etc..More
Body, passivation component include any of the above-described kind of oxidant or its any mixture the aqueous solution in water.
The concentration of the strong oxidizer aqueous solution is crucial for the water-based electrosilvering coating composition for forming the present invention.Such as this
" concentration " used in text means mass percent concentration, i.e. the quality of solute accounts for the quality of complete soln (i.e. water oxidizer)
Percentage represented by concentration.The concentration can meet the water-soluble requirement of oxidant, additionally it is possible to realize to electrosilvering aluminium paste
Passivation Treatment so that aluminium surface possesses water-fast and resistance to chemical corrosion.
Inventor find, when passivation component oxidant concentration in the range of 0.1-15%, to thickness 18-50nm electroplate
Silver-colored aluminium paste has effective passivation and passivation effect, so that it, which possesses, good water resistance.The oxidant concentration
Preferably 1-15%, more preferably 1-10%.
Passivation component can be present in this based on the weight meter of water-based electrosilvering coating composition with about 0.1-5wt% amount
In coating composition.When the content for being passivated component exceeds above range, it can produce harmful effect to coating composition, including
Such as with the organic component in composition undesired chemical reaction occurs for passivation component, influences properties of product；It is passivated component mistake
It can also cause solid to separate out more, influence product behaviour in service.
Solvent and cosolvent are also included according to the water-based electrosilvering coating composition of the present invention.As aqueous coating composition
Thing, it is mainly using water as solvent, also comprising a small amount of cosolvent.The main function of cosolvent is the tree in dissolution of coatings
Fat, make coating be easy to construct, control coating evaporation rate, improve coating film quality etc..Cosolvent may include alcohols solvent, ether
Class solvent, ketones solvent etc..Solvent and cosolvent can the weight meter based on water-based electrosilvering coating composition with about 60-
90wt% amount is present in the coating composition.
The various additives/help according to known to the water-based electrosilvering coating composition of the present invention may also include paint field
Agent, it includes but is not limited to wetting dispersing agent, anti-settling auxiliary agent, resist sagging auxiliary agent, antioxidant, pH adjusting agent etc..It is described to add
Add agent when it is present, weight meter of its content based on the water-based electrosilvering coating composition is no more than 10wt%.
Excellent color effects are had according to the water-based electrosilvering coating composition of the present invention, can be stored steadily in the long term,
And with advantage economically.These advantages and effect are reality by using specific key element and specific preparation technology
Existing.Especially, the present invention is using by inorganic strong oxidizer, (it includes nitrate, chromate, molybdate, manganate, chloric acid
Any of salt, bromate, persulfate and bismuthates or or any a variety of mixture) the strong oxygen of certain concentration for preparing
As passivation component, the aqueous oxidizing agent solution with the aluminium surface in electrosilvering aluminium paste oxidation can occur for the agent aqueous solution instead
Should, one layer of fine and close diaphragm is formed on a surface, and this layer of diaphragm can prevent the reaction of water and aluminium, so as to realize water resistance
Can, while and can meets color effects.
Therefore, the present invention also provides a kind of preparation method of water-based electrosilvering coating composition, comprises the steps：(1)
Resin Composition is pre-dispersed, and pre-dispersed resin Composition is mixed with electrosilvering aluminium powder, the suitable time is dispersed with stirring, such as
15 minutes to 2 hours, or 30 minutes to 1.5 hours, form pre-dispersed liquid (a)；(2) appropriate cosolvent, a part are passivated
Component and auxiliary agent are added in the pre-dispersed liquid (a) formed in step (1), stirring, are disperseed such as 3-5 hours, are stood overnight
(about 12 hours), form pre-dispersed liquid (b)；(3) the passivation component of remainder is added to the pre-dispersed liquid formed in (2)
(b) in, disperse, and stand overnight (about 12 hours), form pre-dispersed liquid (c)；(4) appropriate hydrotropy is added to pre-dispersed liquid (c)
Agent, stir and disperse e.g., from about 1-3 hours, form pre-dispersed liquid (d)；(5) auxiliary agent and deionization are added to pre-dispersed liquid (d)
Water, form the water-based paint compositions.
The pre-dispersed of resin Composition can be carried out by any suitable dispersing mode known in the art.
Especially, the step of also including carrying out water resistance test to pre-dispersed liquid (d) between step (4) and (5), the step
Suddenly include：Take out appropriate pre-dispersed liquid (d), with appropriate cosolvent (such as include but is not limited to isopropanol, ethanol, ethylene glycol
Butyl ether, propylene glycol monomethyl ether, acetone, dipropylene glycol methyl ether) dilution；With 1:3 weight ratio mixes diluted pre-dispersed liquid with water
Close, observe the state of electrosilvering aluminium powder in mixture；If within a hour, aluminium powder state does not change, then it represents that
The success of this Passivation Treatment.The electrosilvering aluminium powder not handled through transpassivation component, after being mixed according to above-mentioned steps with water, it was observed that
Electrosilvering aluminium powder moment reacts with water, aluminium powder state change, and aluminium powder becomes the obfuscation that blacks.
Fig. 2 shows the signal for the dispersion that the electrosilvering aluminium paste of passivated processing is formed after placement being mixed with water 1 hour
The schematic diagram (b) for the dispersion that figure (a) and the electrosilvering aluminium paste of unpassivated processing are formed after placement being mixed with water 1 hour (is surveyed
Try electrosilvering aluminium paste：Love card L-56161 electrosilvering aluminium powders, particle diameter：8-12 μm, aluminium flake thickness：20-30nm).As can be seen that
In Fig. 2 (a), the electrosilvering aluminium paste of passivated processing forms uniform and stable dispersion in the aqueous solution, shows aluminium surface therein
It is passivated, do not have further to react with water, and in Fig. 2 (b), undressed electrosilvering aluminium paste mixes with water
Afterwards, aluminium therein reacts rapidly with water, and swims in solution surface.
Water resistance test is extremely critical to preparing for coating composition of the invention.Before water resistance test completion, no
Water can be added in the pre-formed thing of coating composition (i.e. pre-dispersed liquid (d)), otherwise may destroy coating composition.If
The pre-formed thing of water-based plating silver coating, which is met with, to be destroyed, and its process is irreversible, and the raw material components used in preceding step can only
It is discarded.After water resistance test is qualified, auxiliary agent and water are added to pre-dispersed liquid (d), completes the preparation of coating composition of the present invention.
Strict control technological process and process are needed according to the preparation method of the water-based electrosilvering coating composition of the present invention
Time.Electrosilvering aluminium paste has weight with the waiting time for being passivated the coating products of the mixing and jitter time of component for being formed
Act on, that is, mixing jitter time is more long, then period of storage is more long.Although not bound by any theory, it is believed that electrosilvering aluminium
Slurry must fully contact mixing with passivation component, can effectively aluminium powder surface formation diaphragm, it is excellent resistance to so as to reach
Water-based and color effects.
In the preparation of the water-based electrosilvering coating composition of the present invention cosolvent that uses include but be limited to ethanol, third
Ketone, butyl glycol ether, diethylene glycol dimethyl ether, dimethylethanolamine.In the preparation of the water-based electrosilvering coating composition of the present invention
The middle auxiliary agent used includes but is limited to fill wetting dispersing agent, anti-settling auxiliary agent, levelling agent, defoamer, adhesion promoter.
Furthermore, it is necessary to the pH value of the water-based electrosilvering coating composition of the present invention is controlled, so that whole system is in weak base
Property environment, so as to strengthen the stability of electrosilvering aluminium paste, extends the period of storage of overall coating composition.The alkalescent ring
Border can be for example achieved by such as dimethylethanolamine or similar auxiliary agent.
The water-based electrosilvering coating composition of the present invention can be coated by the method for any standard in this area, such as electropaining,
Spraying, electrostatic spraying, dipping, roller coat, brushing etc., are then formed by curing coating.The water-based plating silver coating of the present invention can pass through
Spraying method is coated to 1-3 μm of thickness, so as to provide excellent color effects, lightness and outward appearance.
The water-based electrosilvering coating composition of the present invention can be applied to various base materials known to coatings industry.It is described
Base material is preferably metal base, and it includes but is not limited to aluminium alloy, aluminium, aluminium wheels, stainless steel, copper and iron etc..
Embodiment
Following embodiments are provided the present invention is expanded on further, but it is not considered that it is limited the present invention to described in embodiment
Details.In addition to other explanation, all parts and percentages are by weight in following embodiments and in the whole text specification.
1. the preparation of resin Composition
50g water-based acrylic resins (SK6517 resins, Shanghai general section) and 4g organic amines (DMEA, BASF) are mixed and pre-
It is scattered 30 minutes, form pre-dispersed liquid.Then, 16g water soluble amino resins (MR-603LF is added into the pre-dispersed liquid
(13g)s ＆MR-627 (3g), Changchun chemical industry), 3g water-soluble polyester resins (SK9080A resins, Shanghai general section) and 2g auxiliary agents
(BYK-333 (1g), BYK；SURFYNOL 104E (1g), gas chemical industry), it is sufficiently mixed scattered about 30-40 minutes.Afterwards, exist
15g cosolvents (butyl glycol ether, Ineos company) and 10g water, and stir about 30-50 minutes are added under stirring thereto, is obtained
To resin intermediate (predispersion of resin Composition).
The preparation of the water-based electrosilvering coating composition of embodiment 2.
The 5g resin intermediates prepared in embodiment 1 and 4g electrosilverings aluminium powder (L-56161, love card) is pre-dispersed 30 points
Clock, form pre-dispersed liquid.By 10g cosolvents (the 1 of acetone and butyl glycol ether:1 mixture), 0.5g passivation component (mangaic acid
Salt and bromate mixture, weight is than 1:9, concentration 5%) and 0.5g Ricinates (BYK333, BYK company) be added to it is described
In pre-dispersed liquid, fully dispersed 3-5 hours.Formed mixture is set to stand overnight (about 12 hours).Then to the mixture
Adding 0.2g passivation component, (manganate and bromate mixture, weight is than 1:9, concentration 5%), it is sufficiently stirred scattered, and stands
Overnight (about 12 hours).Then 10g isopropanols (Royal Dutch Shell) and 5g diethylene glycol dimethyl ethers (DOW Chemical) are added, is dispersed with stirring
2 hours.Then, water resistance test is carried out to the mixture formed：Appropriate sample is taken out, spent glycol monomethyl ether dilutes,
With 1:3 weight ratio mixes diluted sample with water, observes the state of electrosilvering aluminium powder in mixture.Test passes through it
Afterwards, 0.5g sagging inhibitor (BYK-420, BYK company), 0.5g anti-sagging agents (AQ-633E, Supreme Being Si nation are added into the mixture
It is grand) and 64.8g deionized waters, water-based electrosilvering coating composition of the invention is made.
The coating of embodiment 3. is prepared and assessed
3.1 color appearance
300g 2 parts of water-based electrosilvering coating samples produced above are measured respectively, and a sample is positioned in -30 DEG C of environment
Storage 7 days (- 30 DEG C * 7 days), another sample store 30 days (40 DEG C * 30 days) under 40 DEG C of environmental conditions.Afterwards, two are removed
Part sample, it is placed under room temperature environment one day, again to carrying out paired observation after two parts of samples and standard sample stirring.Such as
Fruit has significant difference in -30 DEG C of * 7 days and 40 DEG C of samples placed under conditions of * 30 days and standard sample, represents storage property
Do not pass through.It was observed that the outward appearance and aluminium powder state of test sample do not change, show that sample storage test passes through.
Remarks：The reference sample prepared under standard sample equal conditions.
3.2 colour effect
The sample put in -30 DEG C of * 7 days and the decentralizations of 40 DEG C of * 30 days conditions is prepared into model according to following technique：
Aluminium wheel sub-block → pre-treatment → black ash bottom powder (PPG, trade name：PCFC90203F) → 170 DEG C * 20min → cold
But water-based plating silver coating → standing 5min → 170 DEG C * 10min → cooling → transparent powder (PPG, the trade name of → spraying：
PCC10103)。
The colour table and on-gauge plate that are prepared by this technique are contrasted, it was observed that the outward appearance of plate does not have significant difference, table
Show this color effects after -30 DEG C are stored under the conditions of * 30 days for * 7 days and 40 DEG C, unaffected, test passes through.
3.3 adhesive force are tested
The electrosilvering coating sample put in -30 DEG C of * 7 days and the decentralizations of 40 DEG C of * 30 days conditions is prepared into sample by following technique
Plate, carry out adhesive force test.
Aluminium wheel sub-block → pre-treatment → black ash bottom powder (PPG, trade name：PCFC90203F) → 170 DEG C * 20min → cold
But water-based plating silver coating → standing 5min → 170 DEG C * 10min → cooling (the sampling and testing bottom powder+electrosilvering of → spraying present invention
The adhesive force of layer) → transparent powder (PPG, trade name：PCC10103 water-based plating silver coating → standing 5min → 170 of) → spraying
DEG C * 10min → transparent powder (PPG, trade name：PCC10103) (adhesive force of sampling and testing bottom powder+plating silver layer+transparent powder) →
The water-based plating silver coating → standing 5min → 170 DEG C * 10min → cooling of the spraying present invention (sampling and testing bottom powder+plating silver layer+
The adhesive force of transparent powder+plating silver layer) → transparent powder (PPG, trade name：PCC10103 the water-based plating silver coating of) → spraying → quiet
Put 5min → 170 DEG C * 10min → transparent powder (PPG, trade name：PCC10103) (sampling and testing bottom powder+plating silver layer+transparent powder
The adhesive force of+plating silver layer+transparent powder).
With NT knives 10x10 roads (100 1mm are drawn in specimen surface2Depth and substrate are answered in grid, line), keep test surfaces
As smooth as possible (holding keen edge).3M Scotch adhesive tapes adhesive tapes (No.4-1000) are affixed into specimen surface, and use rubber
Adhesive tape is compacted by skin, adhesive tape is fully contacted with test surfaces, stands 3 minutes.Torn rapidly adhesive tape along 90 degree of directions, range estimation inspection
Test surfaces are tested, are graded with reference to iso standard.
Iso standard is graded
0 grade：5B
The edge of otch is completely smooth, and grid edge does not have any stripping.
1 grade：4B
There is small pieces stripping in otch intersection, actual spoilage is less than or equal to 5% in Hua Ge areas.
2 grades：3B
There is stripping at the edge or intersection of otch, and its area is in 5%-15%.
3 grades：2B
It is partially stripped along notching edge or whole sheet is peeled off, or partial grid is peeled off by full wafer, the area of stripping exists
15%-35%.
4 grades：1B
Notching edge is more than stripping or some grids partly or entirely peel off, and its area is in 35%-65%.
5 grades：0B
There is sheet of peeling paint in scribing edge and infall, and total finish paint that comes off is more than 65%.
Generally, when the coating system, which is used for wheel hub, to be applied, it is desirable to which test result is in 4B or more than 4B.
The adhesive force test result of table 1.
Remarks：Bottom dried bean noodles film thickness：90-120μm
Electrosilvering thickness of dry film：3-5μm
Transparent powder thickness of dry film：90-120μm
3.4 water Soak Tests
Pass through following technique system using in -30 DEG C of * 7 days and 40 DEG C of electrosilvering paint samples placed under conditions of * 30 days
Standby sample block.
Aluminium wheel sub-block → pre-treatment → black ash bottom powder (PPG, trade name：PCFC90203F) → 170 DEG C * 20min → cold
But water-based plating silver coating → standing 5min → 170 DEG C * 10min → cooling → transparent powder (PPG, the trade name of → spraying：
PCC10103)。
Sample block is positioned in 60 DEG C of waters bath with thermostatic control, taken out after placing 48 hours.It was observed that sample block outward appearance does not have bubble, face
Color does not change, and without blushing, paint film adhesive force free of losses, shows that this test passes through without softening.
3.5 paint baking overs are tested
Pass through following technique system using in -30 DEG C of * 7 days and 40 DEG C of electrosilvering paint samples placed under conditions of * 30 days
Standby sample block.
Aluminium wheel sub-block → pre-treatment → black ash bottom powder (PPG, trade name：PCFC90203F) → 170 DEG C * 20min → cold
But water-based plating silver coating → standing 5min → 170 DEG C * 10min → cooling → transparent powder (PPG, the trade name of → spraying：
PCC10103)。
Sample block is positioned in 180 DEG C of baking ovens, toasted 2 hours, after cooling, tests adhesive force.It was observed that adhesive force does not have
Loss, and outward appearance is unchanged, shows that the test passes through.
The performance comparision of the water-based plating silver coating of the present invention of embodiment 4. and commercially available water-based plating silver coating.
4.1 in this embodiment, based on the performance test provided in table 2, to water-based plating silver coating of the invention and now
The water-based plating silver coating (referred to as " the water-based plating silver coating of phosphate ") of some phosphate resins processing and the water-based plating of cladding
Silver coating compares.As a result it is shown in Table 2.
2. coating of the present invention of table and the performance comparision of commercial coating
The 4.2 water-based plating silver coatings and the water-based plating silver coating of phosphate for preparing the present invention " and coating type water electricity
Plating silver coating respectively takes 10 grams, is diluted to the aqueous solution of concentration 10%.The time listed according to table 3 is placed, and its test result is shown in
In table 3.
The paint stability test result of table 3.
From the result in each table above can be seen that the present invention water-based electrosilvering coating composition in combination property it is excellent
In existing water-based electrosilvering coating composition, it has excellent color effects, can store and be fabricated to steadily in the long term
This is relatively low.
Although having explained and having described certain aspects of the present disclosure, it is obvious to a person skilled in the art that can do
Go out a variety of other changes and modification without departing from the spirit and scope of the present invention.Therefore appended claims are intended to cover to fall into
All these changes and modification in the scope of the invention.
Claims (11)
1. a kind of water-based paint compositions, it includes resin Composition, passivation component and electrosilvering aluminium paste.
2. water-based paint compositions as claimed in claim 1, wherein the resin Composition includes thermosetting acrylic resin, satisfied
And/or unsaturated polyester resin, dispersions of polyurethanes, acrylic emulsion, any mixture of amino resins and above-mentioned resin.
3. water-based paint compositions as claimed in claim 1, wherein the passivation component includes the aqueous solution of oxidant.
4. water-based paint compositions as claimed in claim 3, wherein the oxidant include nitrate, chromate, molybdate,
Manganate, chlorate, bromate, persulfate, bismuthates and its any mixture.
5. water-based paint compositions as claimed in claim 3, wherein the concentration of the aqueous solution of the oxidant is in 0.1-15%
In the range of.
6. water-based paint compositions as claimed in claim 1, wherein the passivation component is based on the water-based paint compositions
Weight meter be present in about 0.1-5wt% amount in the coating composition.
7. a kind of method for preparing water-based paint compositions, this method include：
(1) pre-dispersed resin Composition is mixed with electrosilvering aluminium paste and disperseed the suitable time, form pre-dispersed liquid (a)；
(2) part passivation component, appropriate cosolvent and auxiliary agent are added in pre-dispersed liquid (a), when being dispersed with stirring suitable
Between, stand overnight, form pre-dispersed liquid (b)；
(3) the passivation component of remainder is added in pre-dispersed liquid (b), disperses, stand overnight, form pre-dispersed liquid (c)；
(4) appropriate cosolvent is added to pre-dispersed liquid (c), stirs and disperse suitable time, form pre-dispersed liquid (d)；With
(5) auxiliary agent and water are added to pre-dispersed liquid (d), forms the water-based paint compositions.
8. method as claimed in claim 7, wherein also including carrying out pre-dispersed liquid (d) between step (4) and step (5)
The step of water resistance test.
9. coated base material, it includes：
(1) base material；With
(2) water-based paint compositions at least a portion coated in the base material, wherein the water-based paint compositions bag
Resinous component, passivation component and electrosilvering aluminium paste.
10. coated base material as claimed in claim 9, wherein the base material is metal base.
11. base material as claimed in claim 10, wherein the metal base include aluminium alloy, aluminium, aluminium wheels, stainless steel,
Copper and iron.
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| CN201710919226.5A CN107699085A (en) | 2017-09-30 | 2017-09-30 | Water-based paint compositions and preparation method thereof and the base material with its coating |
| PCT/CN2018/108638 WO2019062913A1 (en) | 2017-09-30 | 2018-09-29 | Water-borne coating composition, method of preparing the same, and substrate coated therewith |
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| WO2019062913A1 (en) * | 2017-09-30 | 2019-04-04 | Ppg Coatings (Tianjin) Co., Ltd. | Water-borne coating composition, method of preparing the same, and substrate coated therewith |
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| CN112410775A (en) * | 2020-10-30 | 2021-02-26 | 中科丰阳(福建)科技有限公司 | Application of silver electroplating paint on shoe mold and construction process thereof |
| CN114410162B (en) * | 2022-01-21 | 2022-08-09 | 擎天材料科技有限公司 | Water-based aluminum powder baking paint capable of being cured at low temperature and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891996A (en) * | 2010-07-05 | 2010-11-24 | 江门市制漆厂有限公司 | Acrylic resin metallic brilliant baking paint |
| CN102702836A (en) * | 2012-06-13 | 2012-10-03 | 天长市银狐漆业有限公司 | High-stability water-based coating composition containing metal pigment |
| WO2016168455A1 (en) * | 2015-04-15 | 2016-10-20 | Sun Chemical Corporation | Effect pigment preparation |
| CN106085009A (en) * | 2016-06-30 | 2016-11-09 | 范淳 | A kind of water-based metal granules of pigments and production technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699085A (en) * | 2017-09-30 | 2018-02-16 | Ppg涂料(天津)有限公司 | Water-based paint compositions and preparation method thereof and the base material with its coating |
-
2017
- 2017-09-30 CN CN201710919226.5A patent/CN107699085A/en active Pending
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- 2018-09-29 WO PCT/CN2018/108638 patent/WO2019062913A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891996A (en) * | 2010-07-05 | 2010-11-24 | 江门市制漆厂有限公司 | Acrylic resin metallic brilliant baking paint |
| CN102702836A (en) * | 2012-06-13 | 2012-10-03 | 天长市银狐漆业有限公司 | High-stability water-based coating composition containing metal pigment |
| WO2016168455A1 (en) * | 2015-04-15 | 2016-10-20 | Sun Chemical Corporation | Effect pigment preparation |
| CN106085009A (en) * | 2016-06-30 | 2016-11-09 | 范淳 | A kind of water-based metal granules of pigments and production technology thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062913A1 (en) * | 2017-09-30 | 2019-04-04 | Ppg Coatings (Tianjin) Co., Ltd. | Water-borne coating composition, method of preparing the same, and substrate coated therewith |
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