CN105860806A - Automotive water-borne one-component white paint with excellent comprehensive property and preparation method thereof - Google Patents
Automotive water-borne one-component white paint with excellent comprehensive property and preparation method thereof Download PDFInfo
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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
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- 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
Abstract
The invention discloses automotive water-borne one-component white paint with an excellent comprehensive property and a preparation method thereof. The water-borne one-component white paint is composed of resin, an amine neutralizer, white pulp and auxiliaries, wherein the white pulp is composed of deionized water, cosolvent, auxiliaries and titanium dioxide. After material feeding is completed according to a formula of the white pulp, high speed dispersion is conducted on the materials for 10 min to 15 min, then the dispersed materials enter a sand mill to be milled till the fineness is smaller than 5 micrometers, and the white pulp is obtained; material feeding is conducted according to a formula of the white paint in sequence, stirring is conducted to be uniform, and the water-borne white paint is obtained. The water-borne one-component white paint has the advantages of being excellent in storage stability, freeze-thaw stability, covering capacity, water resistance, chemical resistance, weather resistance, application property, anti-sagging property and drying speed.
Description
Technical field
The present invention relates to car paint technical field, be specifically related to a kind of excellent combination property aqueous one-component white paint and
Its preparation method.
Background technology
The car paint of China is still based on solvent-borne type at present, and a large amount of VOCs (VOCs) are at coating process
In ecological environment caused serious pollution, also human health is brought harm greatly simultaneously.Along with people's environmental protection is anticipated
The raising known, national governments have all put into effect a large amount of relevant regulation to limit the discharge capacity of VOCs.For the development in the epoch of complying with,
The environmentally friendly direction of car paint forward changes, and wherein to include water paint, powdery paints, UV solid for Environmentally friendly coatings
Change coating and high solid coating, and water paint is a class the most with fastest developing speed.
According to statistics, the most most popular body color is white, and the recoverable amount of white car is also the highest on the market, institute
The automobile coating color that consumption is maximum in world wide is can be described as with white paint.The aqueous one-component white paint of one excellent combination property
Must possess following performance:
The most excellent storage stability.
The most excellent adhesive force；
The most excellent covering power；
The most excellent weatherability；
The most excellent low viscous anti-settling property；
The most excellent application property and resist sagging；
The most excellent rate of drying.
Having a lot of producer selling aqueous one-component white paint on the market at present, performance ginseng time is uneven, but there is no one
Individual brand can meet all above requirement simultaneously.So, the aqueous one-component white paint developing a kind of combination property good is filled up
Technique blank is inevitable trend.
Summary of the invention
Aqueous one-component white paint that it is an object of the invention to provide a kind of excellent combination property and preparation method thereof, this kind of in vain
Paint not only VOC content low, belong to environmentally friendly product, and there is excellent storage stability, adhesive force, covering power, resistance to
Hou Xing, low viscous anti-settling property, application property, resist sagging and excellent rate of drying.
The technical solution adopted for the present invention to solve the technical problems is:
The aqueous one-component white paint of a kind of combination property with excellence, is made up of following raw material by weight:
Wherein, described white slurry is made up of following raw material by weight:
Preferably, in described white slurry, cosolvent used is that hydrophilic and oil loving alcohol ethers cosolvent is by 1:1-5
Ratio compound, the most hydrophilic cosolvent is polyethylene glycol (number-average molecular weight is 400) or polypropylene glycol (number-average molecular weight
It is 400), the boiling point of oil loving cosolvent is less than 160 DEG C, and evaporation latent heat is less than 530KJ/Kg simultaneously, such as n-amyl alcohol or just own
Alcohol.
Preferably, described dispersant is dispersant and the low-molecular-weight of anionic of the HMW of anionic
Dispersant compounds, wherein number-average molecular weight ＞ 20000 of the dispersant of HMW, the equal molecule of number of the dispersant of low-molecular-weight
Amount is 3000-10000.The dispersant of the dispersant of the HMW of described anionic and the low-molecular-weight of anionic
Weight ratio is 1.5-2:3-3.5.
It is further preferred that the dispersant of the HMW of described anionic be in BYK-190 and BYK-194N extremely
Few one.
It is further preferred that the dispersant of the low-molecular-weight of described anionic has ELEMENTIS FX600, Rohm&
Haas OROTAN soon easily and in BYK151 etc. at least one.
Preferably, in white slurry, defoamer used is silicone defoamer, such as BYK-022, TEGO-810, TEGO-
In 901w, SURFYNOL 104BC etc. at least one.Defoamer used in white paint is non-silicon class defoamer, as TEGO-830,
In TEGO-831 and TEGO-832 at least one.
Preferably, the wetting agent that wetting agent is unstable bubble in described white slurry, as in TEGO-500, BYK-800 etc. extremely
Few one；The described anti-settling agent in white slurry is organo montmorillonite class anti-settling agent, such as ELEMENTIS BENTONE LT, DE, BYK
In LAPONITE RD etc. at least one；Described titanium dioxide is rutile type titanium white, such as Du Pont titanium dioxide R-706.
Preferably, the described levelling agent in white paint is the levelling agent of the dual-use function with base material wetting and levelling, as
In TEGO240, TEGO425, TEGO450 etc. at least one；Described thickener is association type polyurethanes thickener, as
ELEMENTIS RHEOLATE 299, FX1070 and FX1010, in Viscoplus 3030, Rohm&Haas RM-8W at least one
Kind.Described amine nertralizer is the amine nertralizer that boiling point is higher than 130 DEG C, it is further preferred that dimethylethanolamine and 2-ammonia
In base-2-methyl isophthalic acid-propyl alcohol at least one.
A kind of method preparing above-mentioned aqueous one-component white paint, comprises the following steps:
(1), after deionized water, cosolvent, dispersant, wetting agent and defoamer being mixed, anti-settling agent and titanium white are added
Powder, disperses 10-15min under the linear velocity of 8-9m/s, finally enters sand mill and be ground to fineness ＜ 5 μm, obtain aqueous white slurry；
(2), after waterborne polyurethane resin, amine nertralizer being mixed, it is slowly added to prepare through step (1)
Aqueous white slurry, after being uniformly dispersed, adds defoamer, levelling agent and thickener, dispersed with stirring, filter discharging i.e. obtain aqueous in vain
Paint.
The construction method of above-mentioned aqueous one-component white paint: with deionized water regulation white paint viscosity to 30-35s (be coated with-4 glasss, 23
DEG C), it is sprayed on the tinplate polished, at 60 DEG C, is dried 5min, after drying varniss, clear at its surface spraying Lacquer finish
Paint, solidifies 1h, obtains the white paint film of excellent performance at 60 DEG C.
Beneficial effects of the present invention
Technical solution of the present invention is prepared the method for aqueous one-component white paint compared with prior art, have an advantage that
1. white slurry there is hydrophilic and hydrophobic cosolvent, it is ensured that white slurry and white paint have more preferable storage stability, and
When construction, paint film has faster rate of drying and more preferable appearance；
2. white slurry has the titanium dioxide of 65%-74%, and white paint has the white slurry of 65%-74%, i.e. white paint probably has
The titanium dioxide of 50%, therefore white paint has excellent covering power；
3. white slurry there is HMW and low-molecular-weight anionic dispersing agent, also have the wetting agent of shakiness bubble, protect
Having demonstrate,proved front stirring (the most pre-dispersed) stage, titanium dioxide can be by quick humidification, and the ground white paint starched in vain and prepare also has
Excellent storage stability and freeze-thaw stability；
4. white slurry adds organo montmorillonite class anti-settling agent, it is ensured that the biggest the starching in vain with white paint in the process of storage of proportion
In do not settle regardless of water；Being simultaneously introduced anionic high molecular weight dispersant can help anti-settling agent stable in system, and not
Can reunite during standing and lose anti-settling effect, and anti-settling agent acts synergistically with thickener, provides for white paint excellent
Thixotropy, it is ensured that white paint has excellent application property and resist sagging；
5. the levelling agent added in white paint can help base material to soak, and also can help paint film levelling, it is ensured that finally paint
Film flat smooth is without shrinkage cavity.
Accompanying drawing explanation
Fig. 1 is the charge stable schematic diagram of organo montmorillonite class anti-settling agent.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further, but is not limited thereto.
Embodiment 1
The preparation of the most aqueous white slurry
The formula of aqueous white slurry is as shown in table 1, and its preparation process is as follows: 1. deionized water, different types of help
Solvent adds in stirred tank, adds BYK-190, FX600, TEGO-500, TEGO-901w the most while stirring, waits to be uniformly dispersed
After, continuously add RD and R-706, under the linear velocity of 8-9m/s, stir 10-15min；2. the white slurry stirred is injected sand
Grinding machine, grinds 45min-1h, treats its fineness ＜ 5 μm, i.e. obtain white slurry.
2. the preparation of aqueous one-component white paint
Resin 2606 is added in stirred tank, adds 2-amino-2-methyl-1-propanol while stirring, after neutralizing 5min, slow
White slurry, TEGO-830, TEGO-240, FX1070 that slow addition is ground, stirs 30min after adding all materials, filters discharging,
Obtain aqueous one-component white paint.
3. the preparation of aqueous one-component white paint film
By deionized water regulation white paint viscosity to 30-35s (being coated with-4 glasss, 23 DEG C), it is sprayed on the tinplate polished,
It is dried 5min at 60 DEG C, after drying varniss, at its surface spraying coating varnish, solidifies 1h at 60 DEG C, obtain excellent performance
White paint film.
Performance by the aqueous one-component white paint of formula 1, formula 2, formula 3 and formula 4 preparation is as shown in table 2.Can by table
Knowing, the white paints of formula 1, formula 2, formula 3 and formula 4 preparation are respectively provided with excellent storage stability, covering power, adhesive force, soft
Toughness, endurance and weatherability, but the rate of drying of formula 1 and formula 4 is substantially slow than formula 2 and formula 3.This is because,
The boiling point of water is 100 DEG C, and evaporation latent heat is 588KJ/Kg, and the boiling point of n-butanol is 117.7 DEG C, and evaporation latent heat is 591.5KJ/
Kg, the boiling point of n-heptanol is 176.3 DEG C, and evaporation latent heat is 1837.2KJ/Kg, and the boiling point of n-amyl alcohol is 138 DEG C, and evaporation latent heat is
504.8KJ/Kg, the boiling point of n-hexyl alcohol is 157.1 DEG C, and evaporation latent heat is 448.7KJ/Kg, although n-amyl alcohol and the boiling of n-hexyl alcohol
Point is higher than water, but its evaporation latent heat is more much lower than water, and n-butanol and the boiling point of n-heptanol and evaporation latent heat are all high than water, institute
With, n-amyl alcohol and n-hexyl alcohol, at a temperature of equivalent environment, faster can volatilize than water, thus water discharged faster paint film, simultaneously
On the one hand the existence of polyethylene glycol or polypropylene glycol can ensure that the stability of system, on the other hand can be greatly prolonged paint film
Open hour, make that the moisture content in paint film volatilizees is more thorough.Accordingly, it is preferred that the cosolvent of aqueous one-component white paint is (poly-second
Glycol+n-hexyl alcohol) or (polypropylene glycol+n-amyl alcohol).
Table 1 embodiment 1 changes cosolvent type and prepares the basic recipe of aqueous one-component white paint
Table 2 embodiment 1 cosolvent type and the relation of aqueous one-component white paint performance
1. making time that paint film is completely dried as drying time by blowing, environment temperature is 25 DEG C, and humidity is 75%；
2. patch black and white lattice test covering power, lower same.
Embodiment 2
Table 3 is embodiment 2 in the case of ensureing that unclassified stores is constant, changes Dispersant types and prepares the throwing of aqueous white paint
Material formula, its formula number is followed successively by 5,6,7 and 8.The technical process preparing aqueous one-component white paint by embodiment 1 prepares table 3
4 kinds of white paints of shown numbered 5～8, the technical process preparing white paint film by embodiment 1 prepares paint film.
Performance by the aqueous one-component white paint of formula 5, formula 6, formula 7 and formula 8 preparation is as shown in table 4.Can by table
Know, when formula uses the dispersant package of (BYK-190+FX600) or (BYK-194N+OROTAN easy+BYK-151 soon),
Aqueous one-component white paint has the storage stability of excellence, freeze-thaw stability, covering power, adhesive force, pliability, resistance to water, resistance to
The property changed and weatherability；When selecting the dispersant package of (FX365+FX600), the storage stability of aqueous one-component white paint does not conforms to
Lattice, when selecting the dispersant package of (BYK-192+FX600), the storage stability of aqueous one-component white paint and freeze-thaw stability
Defective, occur after being mainly manifested in storage that particle diameter returns slightly, settles a point water, and viscosity has raised.This is because low molecule
The anionic dispersing agent of amount can disperse titanium dioxide, gives the mobility that white slurry is good, the anionic of HMW simultaneously
Dispersant can stablize titanium dioxide and anti-settling agent, it is ensured that anti-settling agent will not occur cohesion during storing.BYK-190、BYK-
194N Yu FX365 broadly falls into anionic dispersing agent, but the number-average molecular weight of FX365 is much smaller than BYK-190 and BYK-194N,
And BYK-192 belongs to non-ionic dispersing agent, its molecular weight ratio BYK-190 and BYK-194N are little, cause it stably not prevent
Heavy agent, BYK-192 arises that muddy condensation phenomenon when temperature is less than 20 DEG C simultaneously, so by BYK-190 or BYK-194N
The aqueous one-component white paint combination property of preparation is best.Accordingly, it is preferred that dispersant package be (BYK-190+FX600) or
(BYK-194N+OROTAN easy+BYK-151 soon).
Table 3 embodiment 2 changes Dispersant types and prepares the basic recipe of aqueous one-component white paint
Table 4 embodiment 2 Dispersant types and the relation of aqueous one-component white paint performance
Embodiment 3
Table 5 is embodiment 3 in the case of ensureing that unclassified stores is constant, changes dispersive agent ratio and prepares the throwing of aqueous white paint
Material formula, its formula number is followed successively by 9,10,11 and 12.Prepared by the technical process preparing aqueous one-component white paint by embodiment 1
4 kinds of white paints of numbered 9～12 shown in table 5, the technical process preparing white paint film by embodiment 1 prepares paint film.
Performance by the aqueous one-component white paint of formula 9, formula 10, formula 11 and formula 12 preparation is as shown in table 6.By table
Understand, when the proportioning of dispersant B YK-190 Yu FX600 is 0.5:4.5, aqueous white paint have excellent covering power, adhesive force,
Pliability, endurance and weather resistance, but its storage stability, freeze-thaw stability and resistance to water are defective；As dispersant B YK-
When the proportioning of 190 and FX600 is 1.5:3.5, aqueous white paint has the properties of excellence；As dispersant B YK-190 and FX600
Proportioning when being 2:3, aqueous white paint also has the properties of excellence, but the viscosity of white slurry is the most higher, and effect is ground in impact
Rate；When the proportioning of dispersant B YK-190 Yu FX600 is 4.5:0.5, white slurry mobility is the poorest, it is impossible to be ground.This be because of
For, BYK190 as the anionic dispersing agent of HMW, it has two advantages: the most sterically hindered greatly, to titanium dioxide and
Anti-settling agent has stronger stabilization；2. water-tolerant.FX600 also has two as the anionic dispersing agent of low-molecular-weight
Advantage: 1. ratio is more hydrophilic, can quickly move in aqueous phase, can rapid dispersion titanium dioxide；2. strand is shorter, can be that white slurry carries
For good mobility.When the consumption of FX600 is 4.5%, when the consumption of BYK-190 is 0.5%, the stable storing of aqueous white paint
Property, freeze-thaw stability and resistance to water the most not all right；When BYK-190 consumption is 2%, and when the consumption of FX600 is 3%, BYK-190
Strand can produce local be wound around, the viscosity causing white slurry is slightly higher；When BYK-190 consumption is 4.5%, and the consumption of FX600
When being 0.5%, the strand of BYK-190 can produce serious winding, causes white slurry mobility the poorest, it is impossible to meet entering of sand mill
Material viscosity.Accordingly, it is preferred that the ratio of BYK190 Yu FX600 is 1.5:3.5.
Table 5 embodiment 3 changes dispersive agent ratio and prepares the basic recipe of aqueous one-component white paint
Table 6 embodiment 3 dispersive agent ratio and the relation of aqueous one-component white paint performance
Embodiment 4
Table 7 is embodiment 4 in the case of ensureing that unclassified stores is constant, changes anti-settling agent type and prepares the throwing of aqueous white paint
Material formula, its formula number is followed successively by 13,14,15 and 16.Prepared by the technical process preparing aqueous one-component white paint by embodiment 1
4 kinds of white paints of numbered 13～16 shown in table 7, the technical process preparing white paint film by embodiment 1 prepares paint film.
Performance by the aqueous one-component white paint of formula 13, formula 14, formula 15 and formula 16 preparation is as shown in table 8.By
Table understands, and when selecting RD or DE as anti-settling agent, aqueous one-component white paint has the storage stability of excellence, freeze-thaw stability
Property, covering power, adhesive force, pliability, resistance to water, endurance and weatherability, but it is because DE with pink, affect white paint
Whiteness, so not being suitable for preparing white paint；When selecting A200 or FX1070 as anti-settling agent, aqueous one-component white paint has excellent
Different covering power, adhesive force, pliability, resistance to water, endurance and weatherability, but its storage stability, freeze-thaw stability are not
Qualified and application property is poor, occurs a sedimentation point water after being mainly manifested in storage, application property difference be mainly reflected in during spraying fuel-displaced not
Smooth and easy, easy sagging.This is because RD and DE is as organo montmorillonite class anti-settling agent, when it participates in being co-mulled and made into, can be dispersed
In pigment and extender pigment, then it ionizes in water, thus charge layer occurs on surface, by the electrostatic repulsion of charge layer
Sterically hindered with macromolcular dispersant makes titanium dioxide stable in system, and its schematic diagram is as shown in Figure 1.Meanwhile, if this
After kind rock-steady structure is destroyed by external force, it can pass through the fast quick-recovery of charge effect, and this just provides high thixotropic for system
With good application property；A200 belongs to silica-based anti-settling agent, and its anti-settling mechanism is by interparticle hydrogen bond action, many institute's weeks
Knowing, the active force of electric charge can be much larger than the active force of hydrogen bond, so the anti-settling property of A200 is not as RD and DE, middle painting prepared therefrom
Thixotropy and the resist sagging of paint are the most weak；FX1070 belongs to the thickener of association type polyurethane type, and it does not has charge effect,
There is no hydrogen bond action, so its anti-settling property is not as RD, DE and A200, the thixotropy of floating coating prepared therefrom and resist sagging yet
The most weak.Accordingly, it is preferred that anti-settling agent is RD.
Table 7 embodiment 4 changes anti-settling agent type and prepares the basic recipe of aqueous one-component white paint
Table 8 embodiment 4 anti-settling agent type and the relation of aqueous one-component white paint performance
Embodiment 5
Table 9 is embodiment 5 in the case of ensureing that unclassified stores is constant, changes anti-settling agent consumption and prepares the throwing of aqueous white paint
Material formula, its formula number is followed successively by 17,18,19 and 20.Prepared by the technical process preparing aqueous one-component white paint by embodiment 1
4 kinds of white paints of numbered 17～20 shown in table 9, the technical process preparing white paint film by embodiment 1 prepares paint film.
Performance by the aqueous one-component white paint of formula 17, formula 18, formula 19 and formula 20 preparation is as shown in table 10.By
Table understands, and when RD consumption is 0.5%, aqueous white paint has the covering power of excellence, adhesive force, pliability, resistance to water, endurance
And weatherability, but its storage stability and freeze-thaw stability are defective, occur sedimentation point water after being mainly manifested in storage；When RD uses
When amount is 0.7%, aqueous white paint has the properties of excellence；When RD consumption is 1.0%, aqueous white paint has the storage of excellence
Deposit stability, freeze-thaw stability, covering power, adhesive force, pliability, endurance and weatherability, but its resistance to water is defective, and in vain
The viscosity of slurry is excessive, have impact on production efficiency；When RD consumption is 1.3%, the viscosity of white slurry is very big, has exceeded sand mill
Grinding viscosity.Accordingly, it is preferred that anti-settling agent RD consumption is 0.7%.
Table 9 embodiment 5 changes anti-settling agent consumption and prepares the basic recipe of aqueous one-component white paint
Table 10 embodiment 5 anti-settling agent consumption and the relation of aqueous one-component white paint performance
Embodiment 6
Table 11 is embodiment 6 in the case of ensureing that unclassified stores is constant, changes thickener types and prepares aqueous white paint
Feed intake formula, and its formula number is followed successively by 21,22,23 and 24.The technical process system of aqueous one-component white paint is prepared by embodiment 1
4 kinds of white paints of numbered 21～24 shown in standby table 11, the technical process preparing white paint film by embodiment 1 prepares paint film.
Performance by the aqueous one-component white paint of formula 21, formula 22, formula 23 and formula 24 preparation is as shown in table 12.By
Table understands, and the white paint using FX1070 and RM-8W to prepare has the properties of excellence；And make with HV30 and RHEOLATE 420
Standby white paint has storage stability, freeze-thaw stability, covering power, adhesive force, pliability, endurance and the weatherability of excellence,
But its resistance to water is defective.This is because, FX1070 and RM-8W is association type polyurethane thickener, HV30 and RHEOLATE420
Being belonging to the alkali thickening auxiliary agent of emulsion-type, the resistance to water of association type polyurethane thickener is wanted than the alkali thickening auxiliary agent of emulsion-type
Good.Accordingly, it is preferred that thickener is FX1070 or RM-8W.
Table 11 embodiment 6 changes thickener types and prepares the basic recipe of aqueous one-component white paint
Table 12 embodiment 6 thickener types and the relation of aqueous one-component white paint performance
Claims (9)
1. an aqueous one-component white paint, it is characterised in that be made up of following raw material by weight:
Aqueous one-component white paint the most according to claim 1, it is characterised in that described white slurry by following by weight
Raw material composition:
。
Aqueous one-component white paint the most according to claim 2, it is characterised in that described cosolvent is hydrophilic and close
The alcohol ethers cosolvent of oiliness is compounded in the ratio of 1:1-5, and the most hydrophilic cosolvent is polyethylene glycol or polypropylene glycol, parent
The boiling point of the cosolvent of oiliness is less than 160 DEG C, and evaporation latent heat is less than 530KJ/Kg simultaneously.
Aqueous one-component white paint the most according to claim 2, it is characterised in that described dispersant is the height of anionic
The dispersant of the dispersant of molecular weight and the low-molecular-weight of anionic compounds, dividing of the HMW of wherein said anionic
Number-average molecular weight ＞ 20000 of powder, the number-average molecular weight of the dispersant of the low-molecular-weight of described anionic is 3000-
10000。
Aqueous one-component white paint the most according to claim 4, it is characterised in that the HMW of described anionic
Dispersant is 1.5-2:3-3.5 with the weight ratio of the dispersant of the low-molecular-weight of anionic.
Aqueous one-component white paint the most according to claim 2, it is characterised in that described white slurry defoamer is organosilicon
Class defoamer.
Aqueous one-component white paint the most according to claim 2, it is characterised in that described wetting agent is the moistening of unstable bubble
Agent；Described anti-settling agent is organo montmorillonite class anti-settling agent；Described titanium dioxide is rutile type titanium white.
Aqueous one-component white paint the most according to claim 1, it is characterised in that described defoamer belongs to non-silicon class froth breaking
Agent；Described amine nertralizer is the amine nertralizer that boiling point is higher than 130 DEG C；Described levelling agent is to have base material wetting and levelling
The levelling agent of dual-use function；Described thickener is association type polyurethanes thickener.
9. the method for the aqueous one-component white paint that a kind is prepared according to any one of the claims, it is characterised in that include
Following steps:
(1), after deionized water, cosolvent, dispersant, wetting agent and defoamer being mixed, anti-settling agent and titanium dioxide are added,
Under the linear velocity of 8-9m/s, disperse 10-15min, finally enter sand mill and be ground to fineness ＜ 5 μm, obtain aqueous white slurry；
(2) after waterborne polyurethane resin, amine nertralizer being mixed, be slowly added to through step (1) prepare aqueous
White slurry, after being uniformly dispersed, adds defoamer, levelling agent and thickener, dispersed with stirring, filters discharging and i.e. obtain aqueous white paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293091.1A CN105860806B (en) | 2016-05-04 | 2016-05-04 | A kind of automobile using water-based mono-component white paint of excellent combination property and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610293091.1A CN105860806B (en) | 2016-05-04 | 2016-05-04 | A kind of automobile using water-based mono-component white paint of excellent combination property and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN105860806A true CN105860806A (en) | 2016-08-17 |
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| CN107474719A (en) * | 2017-09-20 | 2017-12-15 | 安徽喜宝高分子材料有限公司 | A kind of anti-soil white paint |
| CN108587434A (en) * | 2018-06-01 | 2018-09-28 | 江苏清陶能源科技有限公司 | A kind of coating and preparation method thereof improving stability and solid component is avoided to settle |
| CN109135535A (en) * | 2018-07-26 | 2019-01-04 | 雅图高新材料有限公司 | A kind of one-component metal flash paint of water and oil applicable |
| CN109575775A (en) * | 2018-12-12 | 2019-04-05 | 湖南梓先新材料有限公司 | The automobile-used aqueous plastic paint of motor and preparation method |
| CN109280470B (en) * | 2018-08-02 | 2020-08-14 | 雅图高新材料股份有限公司 | Intermediate coating for fiber-reinforced epoxy resin composite material and preparation method thereof |
| CN115058178A (en) * | 2022-06-29 | 2022-09-16 | 清远市浩宇化工科技有限公司 | Automobile finish, film thereof and preparation method |
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| CN109135535A (en) * | 2018-07-26 | 2019-01-04 | 雅图高新材料有限公司 | A kind of one-component metal flash paint of water and oil applicable |
| CN109135535B (en) * | 2018-07-26 | 2020-10-16 | 雅图高新材料股份有限公司 | Water-oil universal metal flashing paint |
| CN109280470B (en) * | 2018-08-02 | 2020-08-14 | 雅图高新材料股份有限公司 | Intermediate coating for fiber-reinforced epoxy resin composite material and preparation method thereof |
| CN109575775A (en) * | 2018-12-12 | 2019-04-05 | 湖南梓先新材料有限公司 | The automobile-used aqueous plastic paint of motor and preparation method |
| CN115058178A (en) * | 2022-06-29 | 2022-09-16 | 清远市浩宇化工科技有限公司 | Automobile finish, film thereof and preparation method |
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Address after: The two district 529700 in Guangdong province Jiangmen city Heshan City, the ancient town of labor three industrial zone Patentee after: Yatu high tech materials Co., Ltd Address before: The two district 529700 in Guangdong province Jiangmen city Heshan City, the ancient town of labor three industrial zone Patentee before: GUANGDONG YATU CHEMICAL CO., LTD. |