CN112961554B - Super weather-resistant water-based paint for outdoor wood, preparation method thereof and wood product - Google Patents
Super weather-resistant water-based paint for outdoor wood, preparation method thereof and wood product Download PDFInfo
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- CN112961554B CN112961554B CN202110161990.7A CN202110161990A CN112961554B CN 112961554 B CN112961554 B CN 112961554B CN 202110161990 A CN202110161990 A CN 202110161990A CN 112961554 B CN112961554 B CN 112961554B
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- 239000002023 wood Substances 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000003973 paint Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 9
- 239000000839 emulsion Substances 0.000 claims abstract description 18
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002562 thickening agent Substances 0.000 claims abstract description 15
- 239000000080 wetting agent Substances 0.000 claims abstract description 15
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 239000003899 bactericide agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 239000013530 defoamer Substances 0.000 claims abstract description 10
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 16
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical group CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 claims description 7
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims description 7
- -1 alcohol ester Chemical class 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000009775 high-speed stirring Methods 0.000 claims description 3
- 238000004383 yellowing Methods 0.000 abstract description 7
- 230000006750 UV protection Effects 0.000 abstract description 4
- 238000005562 fading Methods 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical class O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 239000004643 cyanate ester Substances 0.000 description 1
- UYAAVKFHBMJOJZ-UHFFFAOYSA-N diimidazo[1,3-b:1',3'-e]pyrazine-5,10-dione Chemical compound O=C1C2=CN=CN2C(=O)C2=CN=CN12 UYAAVKFHBMJOJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
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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
-
- 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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an outdoor wood super weather-resistant water-based paint which is characterized by comprising the following components in parts by weight: 70-90 parts of aqueous acrylic emulsion, 5-10 parts of film forming auxiliary agent, 0.1-1 part of wetting agent, 0.3-1 part of defoamer, 0.1-1 part of ultraviolet absorber, 0.1-1 part of bactericide, 0.1-2 parts of thickener and 1-5 parts of super weather-resistant transparent color paste; the thickener comprises a ceramic RM-8W and an RM-2020NPR, wherein the mass ratio of the RM-8W to the RM-2020NPR is 1:1-6. The coating disclosed by the invention has ultrahigh weather resistance and ultraviolet resistance, avoids the problems of yellowing, fading, light loss, chalking and the like of a paint film, and greatly prolongs the service life of a wooden product.
Description
Technical Field
The invention belongs to the technical field of water-based paint, and particularly relates to an outdoor wood super-weather-resistant water-based paint, a preparation method thereof and a wood product.
Background
Under natural conditions, lignin is insoluble in water, but when irradiated by ultraviolet rays and short-wave visible light with the wavelength less than or equal to 440nm, lignin is easily decomposed into water-soluble components, and the decomposed lignin is taken away by water in the process of changing dry and wet, so that wood is damaged. Therefore, the ultraviolet-proof function is an important property of the wood coating and is also one of important factors for prolonging the service life of the wood product.
CN108129968A discloses an ultraviolet-resistant nano polyurethane wood surface layer coating, which comprises the following components in percentage by weight: 100 parts of polyurethane resin, 15-20 parts of nano composite mother liquor, 6-8 parts of composite corrosion inhibitor, 0.5-1.0 part of organic corrosion inhibitor, 1-3 parts of ultraviolet resistant pigment, 1-3 parts of flame retardant filler, 6-8 parts of isocyanate and 5-10 parts of organic solvent.
CN109161270a discloses a water-based two-component wood coating, which is prepared from two parts including a main agent and a curing agent. Wherein the main agent comprises acrylic emulsion, aqueous polyurethane dispersoid, film forming auxiliary agent, wetting agent, leveling agent, defoaming agent, wax, preservative, ultraviolet absorber and water; the curing agent comprises the following components in percentage by mass: propylene glycol diacetate and cyanate ester mixtures; the cyanate mixture is a mixture of aqueous isocyanate and hydrogenated xylylene diisocyanate; the mass ratio of the main agent to the curing agent is 1:1.5-1.8. The invention takes the acrylic acid and the aqueous polyurethane dispersoid as main film forming materials, isocyanate as curing agent, and the curing reaction is carried out at normal temperature, has the advantages of high hardness, good scratch resistance, ultraviolet resistance, yellowing resistance and the like,
however, most of the existing wood coatings have the problems of poor ultraviolet resistance, easy yellowing, fading, light loss, chalking and the like of a paint film, so that the water-based coating for outdoor wood with ultrahigh weather resistance is needed to be provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides an outdoor wood super-weather-resistant water-based paint, a preparation method thereof and a wood product.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the super weather-resistant water-based paint for the outdoor wood comprises the following components in parts by weight: 70-90 parts of aqueous acrylic emulsion, 5-10 parts of film forming auxiliary agent, 0.1-1 part of wetting agent, 0.3-1 part of defoamer, 0.1-1 part of ultraviolet absorber, 0.1-1 part of bactericide, 0.1-2 parts of thickener and 1-5 parts of super weather-resistant transparent color paste.
Preferably, the aqueous acrylic emulsion is a silicone-acrylic emulsion and/or a pure acrylic emulsion.
Preferably, the film forming auxiliary agent comprises dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve, and further preferably, the mass ratio of dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve is 4-8:1-5:1; most preferably 6:3:1.
Preferably, the wetting agent is at least one of BYK-3455, digao 265 and Digao 270.
Preferably, the defoamer is at least one of BYK024, diligent 822, and diligent 825.
Preferably, the ultraviolet absorber is permanent light EVERSORB AQ1 and/or EVERSORB AQ3.
Preferably, the bactericide is DowLX15 and/or clariant ClariantJMAC Composite PG。
Preferably, the thickener comprises a ceramic RM-8W and RM-2020NPR, further preferably, the mass ratio of RM-8W to RM-2020NPR is 1:1-6; most preferably 1:3.
Preferably, the super weather-proof transparent color paste is a Kedi water-based transparent ferric oxide color paste.
The invention also provides a preparation method of the super weather-resistant water-based paint for outdoor wood, which comprises the following steps:
s1, sequentially adding a film forming auxiliary agent, a wetting agent and a defoaming agent into a low-speed stirred aqueous acrylic emulsion, and continuously stirring at a high speed for 5-15min to obtain a material 1;
s2, sequentially adding an ultraviolet absorbent and a bactericide into the material 1 which is stirred at a high speed to obtain a material 2;
s3, mixing a thickener with pure water to obtain a premix, and adding the premix into the material 2 which is stirred at a high speed until the viscosity is 10-120ku to obtain a material 3;
s4, adding the super weather-proof transparent color paste into the material 3 which is stirred at a low speed, and stirring for 5-15min to obtain the outdoor weather-proof water-based paint for wood.
Preferably, the rotation speed of low-speed stirring in the steps S1, S3 and S4 is 400-800r/min; the rotating speed of the high-speed stirring in the step S2 is 1200-1800r/min.
Preferably, the film forming aid, wetting agent and defoamer are added in step S1 at a rate of 5-10ml/S.
Preferably, the adding speed of the ultraviolet absorber and the bactericide in the step S2 is 5-10ml/S.
Preferably, the premix liquid is added in step S3 at a rate of 5-10ml/S.
Preferably, the adding speed of the super weather-proof transparent color paste in the step S4 is 5-10ml/S.
The invention also provides a wood product, and the surface of the wood product is sprayed with the super weather-resistant water-based paint for outdoor wood or the super weather-resistant water-based paint for outdoor wood prepared by the preparation method.
The beneficial effects of the invention are as follows:
the coating disclosed by the invention is ultra-weather-proof and ultraviolet-proof, so that the problems of yellowing, fading, light loss, chalking and the like of a paint film are avoided, and the service life of a wooden product is greatly prolonged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention are further described in detail below.
Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The raw materials adopted by the invention are all common commercial products unless specified.
Basic example A super weather-resistant water-based paint for outdoor wood
The super weather-resistant water-based paint for the outdoor wood comprises the following components in parts by weight: 70-90 parts of aqueous acrylic emulsion, 5-10 parts of film forming auxiliary agent, 0.1-1 part of wetting agent, 0.3-1 part of defoamer, 0.1-1 part of ultraviolet absorber, 0.1-1 part of bactericide, 0.1-2 parts of thickener and 1-5 parts of super weather-resistant transparent color paste.
Preferably, the aqueous acrylic emulsion is a silicone-acrylic emulsion and/or a pure acrylic emulsion.
Preferably, the film forming auxiliary agent comprises dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve, and further preferably, the mass ratio of dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve is 4-8:1-5:1; most preferably 6:3:1.
Preferably, the wetting agent is at least one of BYK-3455, digao 265 and Digao 270.
Preferably, the defoamer is at least one of BYK024, diligent 822, and diligent 825.
Preferably, the ultraviolet absorber is permanent light EVERSORB AQ1 and/or EVERSORB AQ3.
Preferably, the bactericide is DowLX15 and/or clariant ClariantJMAC Composite PG.
Preferably, the thickener comprises a ceramic RM-8W and RM-2020NPR, further preferably, the mass ratio of RM-8W to RM-2020NPR is 1:1-6; most preferably 1:3.
Preferably, the super weather-proof transparent color paste is a Kedi water-based transparent ferric oxide color paste.
The invention also provides a preparation method of the super weather-resistant water-based paint for outdoor wood, which comprises the following steps:
s1, sequentially adding a film forming auxiliary agent, a wetting agent and a defoaming agent into a low-speed stirred aqueous acrylic emulsion, and continuously stirring at a high speed for 5-15min to obtain a material 1;
s2, sequentially adding an ultraviolet absorbent and a bactericide into the material 1 which is stirred at a high speed to obtain a material 2;
s3, mixing a thickener with pure water to obtain a premix, and adding the premix into the material 2 which is stirred at a high speed until the viscosity is 10-120ku to obtain a material 3;
s4, adding the super weather-proof transparent color paste into the material 3 which is stirred at a low speed, and stirring for 5-15min to obtain the outdoor weather-proof water-based paint for wood.
Preferably, the rotation speed of low-speed stirring in the steps S1, S3 and S4 is 400-800r/min; the rotating speed of the high-speed stirring in the step S2 is 1200-1800r/min.
Preferably, the film forming aid, wetting agent and defoamer are added in step S1 at a rate of 5-10ml/S.
Preferably, the adding speed of the ultraviolet absorber and the bactericide in the step S2 is 5-10ml/S.
Preferably, the premix liquid is added in step S3 at a rate of 5-10ml/S.
Preferably, the adding speed of the super weather-proof transparent color paste in the step S4 is 5-10ml/S.
Examples 1-5A super weather-resistant Water-based paint for outdoor Wood and method for preparing the same
The compositions and amounts of the outdoor wood super weather-resistant aqueous coating materials described in examples 1 to 5 are shown in Table 1.
TABLE 1 composition and amount (parts by weight) of super weatherable aqueous coating for outdoor wood
The preparation method of the super weather-resistant water-based paint for outdoor wood comprises the following steps:
s1, adding aqueous acrylic emulsion into a stirring tank, sequentially adding a film forming auxiliary agent, a wetting agent and a defoaming agent into the stirring tank at the stirring speed of 600r/min at the adding speed of 8ml/S, and continuously stirring for 10 minutes to obtain a material 1;
s2, sequentially adding an ultraviolet absorbent and a bactericide into the material 1 obtained in the step S1 at a stirring speed of 1500r/min and a speed of 8ml/S to obtain a material 2;
s3, mixing the thickener with pure water to obtain a premix, and adding the premix into the material 2 obtained in the step S2 at the adding speed of 8ml/S at the stirring speed of 1500r/min until the viscosity is 60ku to obtain a material 3;
s4, adding super weather-proof transparent color paste into the material 3 obtained in the step S3 at the stirring speed of 600r/min and the speed of 8ml/S, and thus obtaining the outdoor weather-proof water-based paint for wood.
Comparative example 1
The difference between the comparative example and the example 5 is that the film forming auxiliary agent is dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve with the mass ratio of 2:6:3; the thickener is RM-8W and RM-2020NPR with a mass ratio of 4:1.
Comparative example 2
The difference between the comparative example and the example 5 is that the film forming auxiliary agent is dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve with the mass ratio of 1:3:6; the thickener is RM-8W and RM-2020NPR with a mass ratio of 1:4, and the ultraviolet absorbent is benzophenone.
Comparative example 3
The comparative example differs from example 5 in that the outdoor wood super weather-resistant water-based paint comprises the following components in parts by weight: 83 parts of aqueous acrylic emulsion, 15 parts of film forming additive, 1.2 parts of wetting agent, 0.7 part of defoamer, 1.2 parts of ultraviolet absorber, 0.6 part of bactericide, 1 part of thickener and 8 parts of super weather-proof transparent color paste.
Yellowing resistance
The outdoor wood prepared by using examples 1-5 and comparative examples 1-3 was coated with the super weatherable aqueous coating material for cedar wood, the treated wood was of the same batch, and the thickness of the paint film was 50 μm; the test board is tested for yellowing resistance according to GB/T23987, a UVA (340) lamp is used as a light source, and the test board is placed under the test condition that the temperature of the blackboard is (60+/-3) DEG C and the irradiance is 0.68W/m 2 In a thousand-phase (condensation-free) fluorescent ultraviolet aging machine, the whole process keeps continuous illumination for 240 hours. After the end of the test, the colour change (Δe) was measured by a colour difference meter against a non-illuminated panel and the results are shown in table 2.
TABLE 2
As shown in the table, the ultra-weather-resistant water-based paint for outdoor wood prepared by the invention has ultra-weather resistance and ultraviolet resistance, avoids the problems of yellowing, fading, light loss, chalking and the like of a paint film, and greatly prolongs the service life of wood products.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the invention includes, but is not limited to, the examples described in the detailed description, as other embodiments derived from the technical solutions of the invention by a person skilled in the art are equally within the scope of the invention.
Claims (7)
1. The super weather-resistant water-based paint for the outdoor wood is characterized by comprising the following components in parts by weight: 70-90 parts of aqueous acrylic emulsion, 5-10 parts of film forming auxiliary agent, 0.1-1 part of wetting agent, 0.3-1 part of defoamer, 0.1-1 part of ultraviolet absorber, 0.1-1 part of bactericide, 0.1-2 parts of thickener and 1-5 parts of super weather-resistant transparent color paste;
the film forming auxiliary agent is dipropylene glycol butyl ether, dipropylene glycol methyl ether and alcohol ester twelve with the mass ratio of 6:3:1;
the ultraviolet absorbent is permanent light EVERSORB AQ3;
the thickener is RM-8W and RM-2020NPR with the mass ratio of 1:3;
the aqueous acrylic emulsion is a silicone-acrylic emulsion.
2. The ultra-weather resistant water paint for outdoor wood according to claim 1, wherein the wetting agent is at least one of BYK-3455, dyheight 265 and dyheight 270.
3. The outdoor wood super weatherable water coating according to claim 1, wherein the defoamer is at least one of BYK024, diligent 822, and diligent 825.
4. The ultra-weather-resistant water-based paint for outdoor wood according to claim 1, wherein the bactericide is dow' sLX15 and/or clariant ClariantJMAC Composite PG.
5. The method for preparing the super weather-resistant water-based paint for outdoor wood according to any one of claims 1 to 4, comprising the following steps:
s1, sequentially adding a film forming auxiliary agent, a wetting agent and a defoaming agent into a low-speed stirred aqueous acrylic emulsion, and continuously stirring at a high speed for 5-15min to obtain a material 1;
s2, sequentially adding an ultraviolet absorbent and a bactericide into the material 1 which is stirred at a high speed to obtain a material 2;
s3, mixing a thickener with pure water to obtain a premix, and adding the premix into the material 2 which is stirred at a high speed until the viscosity is 10-120ku to obtain a material 3;
s4, adding the super weather-proof transparent color paste into the material 3 which is stirred at a low speed, and stirring for 5-15min to obtain the outdoor weather-proof water-based paint for wood.
6. The method according to claim 5, wherein the rotation speed of the low-speed stirring in the steps S1, S3 and S4 is 400-800r/min; the rotating speed of the high-speed stirring in the step S2 is 1200-1800r/min.
7. A wood product, characterized in that the surface of the wood product is sprayed with the super weather-resistant water-based paint for outdoor wood according to any one of claims 1 to 4 or the super weather-resistant water-based paint for outdoor wood prepared by the preparation method according to any one of claims 5 to 6.
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| CN113897104A (en) * | 2021-09-16 | 2022-01-07 | 安徽坤涂新材料科技有限公司 | Preparation method of ultraviolet-proof coating for PC glass plate |
| CN115386267A (en) * | 2022-10-09 | 2022-11-25 | 福建省腾达洁环保工程有限公司 | Weather-resistant visual transparent protective coating and preparation method thereof |
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