CN103881500B - High-weather-resistance high-stain-resistance white paint for outdoor woodware and preparation method of paint - Google Patents
High-weather-resistance high-stain-resistance white paint for outdoor woodware and preparation method of paint Download PDFInfo
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- CN103881500B CN103881500B CN201410121160.1A CN201410121160A CN103881500B CN 103881500 B CN103881500 B CN 103881500B CN 201410121160 A CN201410121160 A CN 201410121160A CN 103881500 B CN103881500 B CN 103881500B
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Abstract
The invention discloses high-weather-resistance high-stain-resistance white paint for outdoor woodware and a preparation method of the paint. The high-weather-resistance high-stain-resistance white paint for the outdoor woodware comprises the following components in percentage by weight: 28-32% of water-based pure acrylic emulsion, 28-32% of water-based self-crosslinking acrylic emulsion, 22-27% of titanium dioxide pulp, 0.2-0.3% of a defoaming agent A, 2-3% of a film forming additive, 1.5-2% of wax emulsion, 0.3-0.5% of a light stabilizer, 0.5-1% of nanometer zinc oxide pulp, 0.1-0.15% of a first in-tank preservative, 0.2-0.4% of mildew-proof algaecide, 0.2-0.3% of a substrate wetting agent, 0.2-0.7% of a first thickening agent and 3.85-16.3% of deionized water or purified water. The high-weather-resistance high-stain-resistance white paint for the outdoor woodware is resistant to weather, stain and water, low in smell and VOC and excellent in environmental protection and safety comprehensive performances; the preparation method is simple in process and low in cost.
Description
Technical field
The present invention relates to paint field, particularly to a kind of preparation side of high durable stain resistant aqueous open air woodenware white finish paint
Method.
Background technology
For indoor water-borne wood coating, outdoor water-borne wood coating will in the face of exposing to the sun and rain, acid rain powder
The harsh environment such as dirt, cold and hot conversion amplitude be big, and outdoor timber itself is easily by ambient light photograph, high temperature, humidity and microorganism
Erosion and lead to timber deformation, cracking and aging.Therefore, outdoor water-borne wood coating will meet outdoor weathe resistance, water-fast
Property, pliability and the most basic performance requirement such as elasticity, mildew and algae, stain resistance and gas permeability.
Be suitable at present open air pure-acrylic emulsion due to its vitrification point Tg need relatively low, lead to coating surface relatively
Soft, along with paint film has hydrophily in itself, and paint film internal structure is not closely knit, so, when the dust foul in air
After being attached to coating surface, paint film top layer will be entered for medium by absorption with aqueous vapor, causes in the presence of coating pore power
Stain it is difficult to wash, thus affecting the properties of paint film.Therefore, prior art has yet to be improved and developed.
Content of the invention
It is an object of the invention to overcoming the above-mentioned deficiency of prior art, provide a kind of high durable stain resistant aqueous outdoor wood
Device white finish paint and preparation method thereof, to overcome, existing exterior wood finish soil resistant and weatherability be poor, low intensity technical problem.
In order to realize foregoing invention purpose, technical scheme is as follows：
A kind of high durable stain resistant aqueous open air woodenware white finish paint, including the composition of following percentage by weight：
And, a kind of preparation method of high durable stain resistant aqueous open air woodenware white finish paint, comprise the steps：
Obtain each composition according to the component in the woodenware white finish paint of above-mentioned high durable stain resistant aqueous open air and content respectively；
Titanium dioxide slurry is added in the mixed liquor that aqueous pure acrylic latex is with water-borne Self-Crosslinked Acrylic emulsion and carries out batch mixing
Process, form the first mixed liquor；
Described defoamer A is added in described first mixed liquor and carries out mixing treatment, form the second mixed liquor；
Described coalescents are added in described second mixed liquor and carries out mixing treatment, form the 3rd mixed liquor；
Described wax emulsion, light stabilizer, nano zine oxide slurry, the first in-can preservation agent, mildew and algae agent, base material are moistened
Carry out mixing treatment in agent described 3rd mixed liquor of addition, form the 4th mixed liquor；
Described first thickener is added in described 4th mixed liquor and carries out mixing treatment, form the 5th mixed liquor；
Described water component is added in described 5th mixed liquor and carry out mixing treatment, packaging, obtain that described high durable is resistance to be stained with
Sewage open air woodenware white finish paint.
Compared with existing woodcare paint, above-mentioned high durable stain resistant aqueous open air woodenware white finish paint has following technique effect：
1. high durable stain resistant aqueous open air woodenware white finish paint with aqueous acrylic modified emulsion as matrix so that coating tool
There are elasticity and pliability well, can be applicable to open air and do not lead to cracking and the efflorescence of paint film, and pass through self-crosslinking acrylic
The collocation of emulsion, improves product hardness, makes coating have certain anti-stain characteristic and surface property easy to clean.In addition, by adding wax
Emulsion is the synergy that antiblocking agent, nano zine oxide starch as crosslinking agent and light stabilizer and mildew and algae agent etc., significantly
Improve the weatherability of product, stain resistance, resistance to water, smell and VOC are low, environmental protection, safety comprehensive excellent performance；
2. light stabilizer component can be uniformly dispersed in the film of high durable stain resistant aqueous open air woodenware white finish paint, can inhale
Receive harmful W light, catch free radical simultaneously, prevent coating surface from degrading, effective protection paint film variable color, foaming, stripping and mistake
Light.
3. wax emulsion component can be uniformly dispersed in the slurry of high durable stain resistant aqueous open air woodenware white finish paint, in paint film
Solidification process in, interaction and other components molecule between, give the splendid resistance to blocking of paint film and anti-stain characteristic.
4. nano zine oxide is starched prominent anti-ultraviolet function, and can improve crosslink density and the case hardness of film,
Substantially improve weatherability and the resistance to water of film.
5. mildew and algae agent, by selecting the auxiliary agent of the function of having mould proof and anti-algae concurrently, can thoroughly prevent mould and algae
Growth on paint film.
6. substrate wetting agents, thickener and defoamer with the use of making product have excellent workability.
Each component only need to be pressed step according to formula by above-mentioned high durable stain resistant aqueous open air woodenware white finish paint preparation method
Add, stirring makes each component be sufficiently mixed uniformly, without special equipment, therefore, the method process is simple, suitable
Industrialized production, has saved energy consumption, reduces cost.
Specific embodiment
In order that the technical problem to be solved in the present invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only in order to explain
The present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of high durable stain resistant aqueous open air woodenware white finish paint.This aqueous open air woodenware fine flour
Paint the composition of following percentage by weight：
Specifically, above-mentioned aqueous acrylic modified emulsion be matrix so that coating have well elasticity and pliability, can
It is applied to open air and do not lead to cracking and the efflorescence of paint film.As the presently preferred embodiments, above-mentioned aqueous pure acrylic latex solid contains
Measure as 43～47wt%, its MFT (MFFT) is<0℃.It is matrix from the aqueous acrylic modified emulsion of low Tg, make
Obtain coating and there is elasticity and pliability well, can be applicable to open air and do not lead to cracking and the efflorescence of paint film.
In a particular embodiment, the weight percentage of this aqueous pure acrylic latex can be 28%, 29%, 30%,
31%th, 32% etc..
The presence of above-mentioned water-borne Self-Crosslinked Acrylic emulsion, can improve product hardness, make coating have certain anti-stain characteristic
And surface property easy to clean.As the presently preferred embodiments, water-borne Self-Crosslinked Acrylic emulsion selects solids content is 43～47wt%, its
MFT (MFFT) is 29 DEG C of water-borne Self-Crosslinked Acrylic emulsion.From slightly higher Tg self-crosslinking acrylic emulsion with upper
State the aqueous acrylic modified emulsion of the particularly above-mentioned preferably low Tg of aqueous pure acrylic latex component and carry out collocation effect, can have
Effect improves durability of product and pliability (outdoor application paint film does not ftracture), makes coating have certain anti-stain characteristic and surface easily clear
Clean property, greatly improves outdoor application performance.
In a particular embodiment, the weight percentage of this water-borne Self-Crosslinked Acrylic emulsion can be 28%, 29%,
30%th, 31%, 32% etc..
Above-mentioned defoamer A is preferably and does not contain silicone, no hydrophobicity silane groups classification defoamer.As aerochemistry Surfynol
MD20.In a particular embodiment, the weight percentage of this defoamer A can be 0.2%, 0.25%, 0.3% etc..
Above-mentioned coalescents are preferably propane diols ethers, such as DPM, DPnB.In a particular embodiment, the weight of this coalescents
Amount percentage composition can be 2%, 2.2%, 2.5%, 2.8%, 3% etc..
Above-mentioned wax emulsion is preferably maleic anhydride modified polypropylene wax emulsion, such as MICHELMAN43040.This wax emulsion has
There are high tenacity and high resiliency, can give film has good resistance to blocking, stain resistant, water proofing property.In a particular embodiment, this wax
The weight percentage of emulsion can be 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2% etc..
Above-mentioned light stabilizer is preferably BTA UV absorbers UVA and hindered amine HALS stabilizer, such as
Clariant Hostavin3225-2XP、Ciba TINUVIN5151.It is provided that farthest to protect and give polymer from light
The degraded of chemistry.Mechanical or optical performance is delayed by prolonged exposure increase.In a particular embodiment, the weight of this light stabilizer
Amount percentage composition can be 0.3%, 0.4%, 0.5% etc..
Above-mentioned nano zine oxide slurry is preferably the Zinc oxide water dispersion of nano particle.As Buhler Oxylink3101.
Nano zine oxide in this preferred nano zine oxide slurry belongs to inorganic pigment, can make coating have shielding ultraviolet rays, absorb infrared
Line and fungus and mildew resistance effect, compared with organic pigment, preventing ultraviolet effect is more excellent.Add inorganic nano zinc oxide can be remarkably reinforced
The weatherability of outdoor aqueous woodware paint, and crosslink density and the case hardness of film can be improved, substantially improve the resistance to water of film,
Delay the aging of film.
In a particular embodiment, the weight percentage of this nano zine oxide slurry can be 0.5%, 0.6%, 0.7%,
0.8%th, 0.9%, 1% etc..
In a preferred embodiment, this nano zine oxide slurry is to obtain through PROCESS FOR TREATMENT：
(1) first zinc oxide and weakly acidic water are mixed, adjust pH and boil to faintly acid, obtain slurry；
(2) by calcination, pulverization process after the drying of described slurries filtration, prepared nano zine oxide；
(3) macromolecule dispersing agent, described nano zine oxide is added to carry out dispersing technology under with water, propane diols as decentralized medium
Process, obtain nano zinc oxide slurry first product；
(4) by described nano zinc oxide slurry first product milled processed, obtain described nano zinc oxide slurry finished product.
Wherein, in above-mentioned steps (1), pH faintly acid can be pH is 6-6.6, and specific pH is 6.5.
In above-mentioned steps (2), the temperature of calcination can be 350-450 DEG C, and calcination time can be 1.5-2.5 hour,
It is somebody's turn to do in specific embodiment, the temperature of calcination can be 400 DEG C, and calcination time can be 2 hours.
In above-mentioned steps (3), water, propane diols, macromolecule dispersing agent, nano zine oxide adding proportion can be according to routine
Ratio add, as long as ensureing that final nano zinc oxide slurry is uniformly dispersed and stability.
Above-mentioned first in-can preservation agent is preferably isothiazolinone biocide agent, such as THOR ACTICIDE RS.This different thiophene
Oxazoline ketone bactericide is a kind of efficient, wide spectrum, environmental friendly, anti-corrosive bactericide, effectively stops product in production and storage environment
By microbial attack.In a particular embodiment, the weight percentage of this first in-can preservation agent can be 0.1%, 0.12%,
0.13%th, 0.14%, 0.15% etc..
Above-mentioned mildew and algae agent is preferably n- octyl-isothiazolinone and triazine derivatives species, such as THOR ACTICIDE
CF.Have the function of mould proof and anti-algae simultaneously concurrently, can thoroughly prevent the growth on paint film of mould and algae.In specific embodiment
In, the weight percentage of this mildew and algae agent can be 0.2%, 0.3%, 0.4% etc..
Above-mentioned substrate wetting agents are preferably Siloxane-Oxyalkylene Copolymers class surfactant, such as BYK349, BYK346.In tool
In body embodiment, the weight percentage of this substrate wetting agents can be 0.2%, 0.3% etc..
Above-mentioned first thickener is preferably polyurethane association nonionic thickener, such as RM-8W, RM-12W, RM-2020.
In a particular embodiment, the weight percentage of this first thickener can be 0.2%, 0.3%, 0.4%, 0.5%, 0.6%,
0.7% etc..
In a preferred embodiment, above-mentioned titanium dioxide slurry includes the composition of following weight percent：
In one embodiment, this titanium dioxide slurry includes the composition of following weight percent：
Wherein, the preferred deionized water of water component in above-mentioned titanium dioxide slurry embodiment or pure water.Titanium dioxide is preferably weather-proof
Type rutile type titanium white, such as Mei Lilian company RCL595.Dispersant is preferably the HMW block containing pigment affinity groups
Copolymer solution, such as BYK190.Pigment wetting agent is preferably alkyl polyoxyethylene ether nonionic surface active agent, such as
Clariant Genapol X080.Above-mentioned defoamer B is preferably polyethylene glycol-hydrophobic particles-polysiloxane mixture class froth breaking
Agent, such as BYK022.The preferred isothiazolinone biocide agent of second in-can preservation agent.The preferred polyurethane of second thickener associate non-from
Subtype thickener.Wherein, the second in-can preservation agent can be identical or different with above-mentioned first in-can preservation agent composition, the second thickening
Agent can also be identical or different with above-mentioned first thickener ingredients.
In a particular embodiment, the weight percentage of this titanium dioxide slurry can be 22%, 23%, 24%, 25%, 26%,
27% etc..
In one embodiment, the compound method of this titanium dioxide slurry is as follows：
Step (1) presses the composition of above-mentioned titanium dioxide slurry and content obtains each component, such as water, propane diols, dispersant, wetting
The components such as agent, defoamer B, the second in-can preservation agent, titanium dioxide second thickener；
Step (2) water, propane diols, dispersant, pigment wetting agent, defoamer B, in-can preservation agent carry out mixing treatment, obtain
To mixed liquor；
Step (1) is obtained titanium dioxide by step (3), thickener adds mixed liquor prepared by step (2) to carry out batch mixing dispersion
Process, until fineness≤25 μm of mixed liquor.
Wherein, in this step (2), mixing treatment processes not special requirement, such as can be in the speed of 400-600rpm/min
Mix and blend is processed, it would however also be possible to employ at the mixing treatment process conditions in step S02 hereinafter described to step S07
Reason, as long as enable each component uniformly mix.
Batch mixing decentralized processing in this step (3) can be, after titanium dioxide to be added and after the second thickener, first to adopt routine
Mixing treatment method processed so that each component is uniformly dispersed, then adopt high speed decentralized processing as rotating speed can be adopted
For 1200rpm/min high speed decentralized processing, until mixed liquor fineness≤25 μm.
Above-mentioned high durable stain resistant aqueous open air woodenware white finish paint preferably with the aqueous acrylic modified emulsion of low Tg as matrix,
Make coating have elasticity and pliability well, can be applicable to open air and do not lead to cracking and the efflorescence of paint film, and pass through excellent
Select the collocation of slightly higher Tg self-crosslinking acrylic emulsion, improve product hardness, make coating have certain anti-stain characteristic and surface easily clear
Clean property.Meanwhile, formula, by adding the synergy of wax emulsion, nano zine oxide slurry, light stabilizer and mildew and algae agent, enters one
The paint film that step is formed after making to be dried has excellent weatherability, resistance to water, resistance to blocking and stain resistance, chemical resistance；Gas
Taste and VOC are low, environmental protection, safety, excellent combination property；Levelling agent, surfactant and defoamer with the use of making product
There is excellent workability；In addition, after testing, the aqueous open air of the high durable stain resistant in above-described embodiment woodenware white finish paint makes
In various raw material, limits of harmful substances and finished product all meet GB24410-2009 standard and require, and end properties meet simultaneously
GB/T23999-2009 standard requires.
Correspondingly, the embodiment of the present invention additionally provides a kind of work of above-mentioned high durable stain resistant aqueous open air woodenware white finish paint
Skill is simple, the preparation method of low cost.This preparation method comprises the steps：
S01. weigh each component by the composition of high durable stain resistant aqueous open air woodenware white finish paint：Height as described above
Composition in the woodenware white finish paint of weather-proof stain resistant aqueous open air and content obtain each component respectively；
S02. prepare the mixed liquor containing titanium dioxide slurry, aqueous pure acrylic latex and water-borne Self-Crosslinked Acrylic emulsion：To walk
Carry out batch mixing in the titanium dioxide slurry aqueous pure acrylic latex of addition that rapid S01 obtains and the mixed liquor of water-borne Self-Crosslinked Acrylic emulsion
Process, form the first mixed liquor；
S03. prepare the mixed liquor containing defoamer A：Described defoamer A is added in described first mixed liquor and carries out at batch mixing
Reason, forms the second mixed liquor；
S04. prepare the mixed liquor containing coalescents：Described coalescents are added in described second mixed liquor and carries out batch mixing
Process, form the 3rd mixed liquor；
S05. prepare the mixed liquor containing coalescents：Will be anti-in described wax emulsion, light stabilizer, nano zine oxide slurry, tank
Rotten agent, mildew and algae agent, base material wetting agent add in described 3rd mixed liquor and carry out mixing treatment, form the 4th mixed liquor；
S06. prepare the mixed liquor containing into the first thickener：Described first thickener is added in described 4th mixed liquor
Row mixing treatment, forms the 5th mixed liquor；
S07. add water mixing treatment to mixed liquor：Described water is added in described 5th mixed liquor and carries out mixing treatment, bag
Dress, obtains described high durable stain resistant aqueous open air woodenware white finish paint.
Specifically, in above-mentioned steps S01, each component as above civilian institute of high durable stain resistant aqueous open air woodenware white finish paint
State, in order to save length, will not be described here.
Mixing treatment in above-mentioned steps S02, step S03, step S04, step S05, step S06 and step S07 is permissible
Directly adopt stir mixing to process, certainly can also adopt other mixing treatment, as long as it is homodisperse to enable each component
Purpose, uniformly scope disclosed by the invention.When being processed using stir mixing, stirring condition can turn clockwise or inverse
Hour hands rotation or combination clockwise and counterclockwise, rotating speed can not had in the embodiment of the present invention from the rotating speed of this area routine
Have special requirement, wherein, in step S02, step S03 stirring time be preferably 10～15 minutes, step S04, step S05,
In step S06, step S07, the time of stirring is preferably 5～10 minutes.Certainly, as long as each composition can be made dispersed,
The rotating speed of stirring and time all can be adjusted flexibly according to actual production conditions.
In the technology of the package of above-mentioned steps S07, specific manner of packing, according to packaging commonly used in the art, such as adopts
Glue tank is packed.
Each component only need to be pressed step according to formula by above-mentioned high durable stain resistant aqueous open air woodenware white finish paint preparation method
Add, stirring makes each component be sufficiently mixed uniformly, no complicated procedures of forming, without special equipment so that the method work
Skill is simple, and suitable industrialized production has been saved energy consumption, reduced cost.
The using method of high durable stain resistant mentioned above aqueous open air woodenware white finish paint finished product is as follows：With appropriate water
Open dilute rear construction, form of construction work using brushing or can spray.Product is applied to outdoor woodwork such as Wood construction, post-and-paling, timber
The protection of window, outdoor wooden furniture, garden landscape etc. and application.
Now by concrete high durable stain resistant aqueous open air woodenware fine flour paint formula and preparation as a example, to the present invention enter advance
One step describes in detail.
Embodiment 1
A kind of high durable stain resistant aqueous open air woodenware white finish paint and preparation method thereof：
S11. weigh each component according to the formula of the aqueous open air of high durable stain resistant in table 1 below woodenware white finish paint；Wherein,
Aqueous pure acrylic latex mass parts are 28, and water-borne Self-Crosslinked Acrylic quality of the emulsion part is 28, and titanium dioxide slurry mass parts are 22, disappear
Infusion is the aerochemistry Surfynol MD20 of 0.2 mass parts, and coalescents are the DPNB of 2 mass parts, and wax emulsion is 1.5 matter
The MICHELMAN43040 of amount part, light stabilizer is the Clariant Hostavin3225-2XP of 0.3 mass parts, nano oxidized
Zinc starches the Buhler Oxylink3101 for 0.5 mass parts, and in-can preservation agent is the THOR ACTICIDE RS of 0.1 mass parts,
Mildew and algae agent is the THOR ACTICIDE CF of 0.2 mass parts, and substrate wetting agents are 0.2 mass parts
BYK349, thickener is the RM-12W of 0.7 mass parts.
S12. the titanium dioxide slurry weighing in step S11 is added under conditions of stirring the aqueous pure acrylic latex of premixing
In water-borne Self-Crosslinked Acrylic emulsion, it is configured to the first mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is
10-15 minute；
S13. the defoamer weighing in step S11 A is added under conditions of stirring the first mixed liquor that step S12 is prepared
In, it is configured to the second mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 10-15 minute；
S14. the coalescents weighing in step S11 are added under conditions of stirring the second mixing that step S13 is prepared
In liquid, it is configured to the 3rd mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S15. will be mould proof to the wax emulsion weighing in step S11, light stabilizer, nano zine oxide slurry, in-can preservation agent, dry film
Algaecide, base material wetting agent add in the 3rd mixed liquor that step S14 is prepared under conditions of stirring, are configured to the 4th mixing
Liquid；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S16. the thickener weighing in step S11 is added under conditions of stirring the 4th mixed liquor that step S15 is prepared
In, it is configured to the 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S17. the deionized water weighing in step S11 or pure water are added step S16 to prepare under conditions of stirring
In 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S18. pack：Step S17 is packed, is obtained described high durable stain resistant aqueous open air woodenware white finish paint.
Embodiment 2
A kind of high durable stain resistant aqueous open air woodenware white finish paint and preparation method thereof：
S21. weigh each component according to the formula of the aqueous open air of high durable stain resistant in table 1 below woodenware white finish paint；Wherein,
Aqueous pure acrylic latex mass parts are 30, and water-borne Self-Crosslinked Acrylic quality of the emulsion part is 30, and titanium dioxide slurry mass parts are 25, disappear
Infusion is the aerochemistry Surfynol MD20 of 0.3 mass parts, and coalescents are the DPNB of 2 mass parts, and wax emulsion is 2 mass
The MICHELMAN43040 of part, light stabilizer is the Clariant Hostavin3225-2XP of 0.4 mass parts, nano zine oxide
Starch the Buhler Oxylink3101 for 0.5 mass parts, in-can preservation agent is the THOR ACTICIDE RS of 0.1 mass parts, prevent
Mould algaecide is the THOR ACTICIDE CF of 0.3 mass parts, and substrate wetting agents are the BYK349 of 0.3 mass parts, and thickener is
The RM-12W of 0.5 mass parts.
S22. the titanium dioxide slurry weighing in step S21 is added under conditions of stirring the aqueous pure acrylic latex of premixing
In water-borne Self-Crosslinked Acrylic emulsion, it is configured to the first mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is
10-15 minute；
S23. the defoamer weighing in step S21 A is added under conditions of stirring the first mixed liquor that step S22 is prepared
In, it is configured to the second mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 10-15 minute；
S24. the coalescents weighing in step S21 are added under conditions of stirring the second mixing that step S23 is prepared
In liquid, it is configured to the 3rd mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S25. will be mould proof to the wax emulsion weighing in step S21, light stabilizer, nano zine oxide slurry, in-can preservation agent, dry film
Algaecide, base material wetting agent add in the 3rd mixed liquor that step S24 is prepared under conditions of stirring, are configured to the 4th mixing
Liquid；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S26. the thickener weighing in step S21 is added under conditions of stirring the 4th mixed liquor that step S25 is prepared
In, it is configured to the 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S27. the deionized water weighing in step S21 or pure water are added step S26 to prepare under conditions of stirring
In 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S28. pack：Step S27 is packed, is obtained described high durable stain resistant aqueous open air woodenware white finish paint.
Embodiment 3
S31. weigh each component according to the formula of the aqueous open air of high durable stain resistant in table 1 below woodenware white finish paint；Wherein,
Aqueous pure acrylic latex mass parts are 32, and water-borne Self-Crosslinked Acrylic quality of the emulsion part is 32, and titanium dioxide slurry mass parts are 27, disappear
Infusion is the aerochemistry Surfynol MD20 of 0.3 mass parts, and coalescents are the DPNB of 3 mass parts, and wax emulsion is 2 mass
The MICHELMAN43040 of part, light stabilizer is the Clariant Hostavin3225-2XP of 0.5 mass parts, nano zine oxide
Starch the Buhler Oxylink3101 for 1 mass parts, in-can preservation agent is the THOR ACTICIDE RS of 0.15 mass parts,
Mildew and algae agent is the THOR ACTICIDE CF of 0.4 mass parts, and substrate wetting agents are 0.3 mass parts
BYK349, thickener is the RM-12W of 0.2 mass parts.
S32. the titanium dioxide slurry weighing in step S31 is added under conditions of stirring the aqueous pure acrylic latex of premixing
In water-borne Self-Crosslinked Acrylic emulsion, it is configured to the first mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is
10-15 minute；
S33. the defoamer weighing in step S31 A is added under conditions of stirring the first mixed liquor that step S32 is prepared
In, it is configured to the second mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 10-15 minute；
S34. the coalescents weighing in step S31 are added under conditions of stirring the second mixing that step S33 is prepared
In liquid, it is configured to the 3rd mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S35. will be mould proof to the wax emulsion weighing in step S31, light stabilizer, nano zine oxide slurry, in-can preservation agent, dry film
Algaecide, base material wetting agent add in the 3rd mixed liquor that step S34 is prepared under conditions of stirring, are configured to the 4th mixing
Liquid；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S36. the thickener weighing in step S31 is added under conditions of stirring the 4th mixed liquor that step S35 is prepared
In, it is configured to the 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S37. the deionized water weighing in step S31 or pure water are added step S36 to prepare under conditions of stirring
In 5th mixed liquor；The rotating speed of wherein stirring is 400-600 rev/min, and the time is 5-10 minute；
S38. pack：Step S37 is packed, is obtained described high durable stain resistant aqueous open air woodenware white finish paint.
Table 1
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Aqueous pure acrylic latex (wt%) | 28 | 30 | 32 |
| Water-borne Self-Crosslinked Acrylic emulsion (wt%) | 28 | 30 | 32 |
| Titanium dioxide slurry (wt%) | 22 | 25 | 27 |
| Defoamer A (wt%) | 0.2 | 0.3 | 0.3 |
| Coalescents (wt%) | 2 | 2 | 3 |
| Wax emulsion (wt%) | 1.5 | 2 | 2 |
| Light stabilizer (wt%) | 0.3 | 0.4 | 0.5 |
| Nano zine oxide starches (wt%) | 0.5 | 0.5 | 1 |
| In-can preservation agent (wt%) | 0.1 | 0.1 | 0.15 |
| Mildew and algae agent (wt%) | 0.2 | 0.3 | 0.4 |
| Substrate wetting agents (wt%) | 0.2 | 0.3 | 0.3 |
| Thickener (wt%) | 0.7 | 0.5 | 0.2 |
| Deionized water or pure water (wt%) | 16.3 | 8.6 | 3.85 |
Wherein, the formula such as table 2 below of the titanium dioxide slurry in table 1.
Table 2
| Component | Content |
| Deionized water or pure water (wt%) | 17.5 |
| Propane diols (wt%) | 8 |
| Dispersant (wt%) | 2 |
| Pigment wetting agent (wt%) | 2 |
| Defoamer B (wt%) | 0.4 |
| Second in-can preservation agent (wt%) | 0.1 |
| Titanium dioxide (wt%) | 68 |
| Second thickener (wt%) | 2 |
Performance test
The domestic at present standard not also being directed to outdoor aqueous woodware paint is put into effect.Have wood in view of outdoor woodcare paint concurrently
Device and the double characteristic of outdoor use, this research in project indicator determination with method of testing with domestic, have been carried out in the world
Standard and method be foundation, the standard of institute's reference includes GB/T23999-2009 indoor decorating water-borne wood coating mark
Standard, GB/T9755-2001 exterior wall coating material of synthetic resin emulsion standard, GB/T172-2005 elastic building paint standard (exterior wall portion
Point), DIN EN927 coating, colored paint-outdoor wood coating and coating system standard and the resistance to mould of GB/T1741-2007 paint film
Property determination method and GB/T21353-2008 paint film anti-algae property determination method.Test event determined by successively and index such as following table institute
Show.
Test event determined by successively and index, high durable stain resistant water prepared by above-described embodiment 1 to embodiment 3
Property outdoor woodenware white finish paint tested, test result such as table 3 below：
Table 3
As shown in Table 2, the high durable stain resistant aqueous open air woodenware white finish paint of embodiments of the present invention preparation passes through respectively
Synergy between component is so that the paint film being formed after being dried has permanent weatherability, stain resistance, resistance to water, resistance toization
The property learned and mildew and algae performance, in addition, this high durable stain resistant aqueous open air woodenware white finish paint smell and VOC are low, environmental protection, peace
Entirely, excellent combination property.Designed formula was used for pine (cork) and pineapple lattice (hardwood) ground, through the outdoor of nearly 2 years
Actually used investigation, shows gratifying durability, and product no ftractures, no bubble, no peel off, weatherability and dirt-resistant
Property good, be worthy to be popularized.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of high durable stain resistant aqueous open air woodenware white finish paint, including the composition of following percentage by weight：
The solids content of described aqueous pure acrylic latex is 43～47wt%, 0 DEG C of its MFT ＜；
The solids content of described water-borne Self-Crosslinked Acrylic emulsion is 43～47wt%, and its MFT is 29 DEG C；
Described wax emulsion is maleic anhydride modified polypropylene wax emulsion.
2. high durable stain resistant according to claim 1 aqueous open air woodenware white finish paint it is characterised in that：Described titanium dioxide slurry
Composition including following weight percent：
3. high durable stain resistant according to claim 2 aqueous open air woodenware white finish paint it is characterised in that：Described titanium dioxide
It is preferably weather resistant rutile type titanium white；Or/and
Described dispersant is the high molecular weight block copolymer solution containing pigment affinity groups；Or/and
Described pigment wetting agent is alkyl polyoxyethylene ether nonionic surface active agent；Or/and
Defoamer B is polyethylene glycol-hydrophobic particles-polysiloxane mixture class defoamer.
4. according to the arbitrary described high durable stain resistant of claim 1-3 aqueous open air woodenware white finish paint it is characterised in that：Described
Defoamer A is without silicone, no hydrophobicity silane groups classification defoamer；Or/and
Described coalescents are propane diols ethers.
5. according to the arbitrary described high durable stain resistant of claim 1-3 aqueous open air woodenware white finish paint it is characterised in that：Described
Light stabilizer is the mixture of BTA UV absorbers UVA and hindered amine HALS stabilizer.
6. according to the arbitrary described high durable stain resistant of claim 1-3 aqueous open air woodenware white finish paint it is characterised in that：Described
Nano zine oxide starches the Zinc oxide water dispersion for nano particle；Or/and
Described first in-can preservation agent and/or the second in-can preservation agent are isothiazolinone biocide agent；Or/and
Mildew and algae agent is n- octyl-isothiazolinone, triazine derivatives species；Or/and
Described substrate wetting agents are Siloxane-Oxyalkylene Copolymers class levelling agent；Or/and
Described first thickener and/or the second thickener are polyurethane association nonionic thickener.
7. a kind of preparation method of high durable stain resistant aqueous open air woodenware white finish paint, comprises the steps：
Divide according to the composition in the woodenware white finish paint of the aqueous open air of the high durable stain resistant described in any one of claim 1-6 and content
Do not obtain each component；
Titanium dioxide slurry is added in the mixed liquor that aqueous pure acrylic latex is with water-borne Self-Crosslinked Acrylic emulsion and carries out mixing treatment,
Form the first mixed liquor；
Described defoamer A is added in described first mixed liquor and carries out mixing treatment, form the second mixed liquor；
Described coalescents are added in described second mixed liquor and carries out mixing treatment, form the 3rd mixed liquor；
Described wax emulsion, light stabilizer, nano zine oxide slurry, the first in-can preservation agent, mildew and algae agent, base material wetting agent are added
Enter and in described 3rd mixed liquor, carry out mixing treatment, form the 4th mixed liquor；
Described first thickener is added in described 4th mixed liquor and carries out mixing treatment, form the 5th mixed liquor；
Described water is added in described 5th mixed liquor and carries out mixing treatment, packaging, obtain the aqueous family of described high durable stain resistant
Outer woodenware white finish paint.
8. high durable stain resistant according to claim 7 aqueous open air woodenware white finish paint preparation method it is characterised in that
The compound method of described titanium dioxide slurry is as follows：
According to the component proportion of titanium dioxide slurry described in claim 2, by water, propane diols, dispersant, pigment wetting agent, defoamer
B, the second in-can preservation agent carry out mixing treatment, obtain the 6th mixed liquor；
Titanium dioxide, the second thickener are added described 6th mixed liquor to carry out batch mixing decentralized processing, until the fineness of mixed liquor≤
25μm.
9. the preparation method of the aqueous open air of the high durable stain resistant according to claim 7 or 8 woodenware white finish paint, its feature exists
In：The preparation method of described nano zine oxide slurry：
By zinc oxide and the mixing of weakly acidic water, adjust pH and boil to faintly acid, obtain slurry；
Calcination, pulverization process after described slurries filtration is dried, prepared nano zine oxide；
Add macromolecule dispersing agent, described nano zine oxide to carry out dispersing technology process under with water, propane diols as decentralized medium, obtain
To nano zinc oxide slurry first product；
By described nano zinc oxide slurry first product milled processed, obtain described nano zinc oxide slurry finished product.
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