High-build water-based quick-drying alkyd paint and preparation method thereof

Abstract

The invention discloses a thick paste type water-based quick-drying alkyd paint. According to the coating, modified petroleum resin emulsion, water-based modified alkyd resin and water-based modified epoxy ester resin are cured to form a film, and a drier and other auxiliaries are added, so that the high-build water-based quick-drying alkyd coating with excellent adhesive force, high weather resistance, high hardness, quick drying, water resistance and corrosion resistance is obtained. The invention also provides a preparation method of the high-build water-based quick-drying alkyd paint.

Description

Technical Field

[0001] The present invention relates to the field of high-build water-based quick-drying alkyd coatings, and in particular to a high-build water-based quick-drying alkyd coating with excellent adhesion, high weather resistance, high film thickness and fast drying, and a preparation method thereof. Background Art

[0002] The VOCs released during the production and use of traditional solvent-based paints not only pollute the ecological environment but also harm the human body. In recent years, in order to meet the requirements of environmental protection and energy conservation, the development of low-VOC environmentally friendly paints has become a development trend in the paint industry.

[0003] Petroleum resin is a thermoplastic resin polymerized from unsaturated hydrocarbons, a byproduct of cracked petroleum. It boasts advantages such as low cost, good compatibility, a low melting point, and resistance to water, ethanol, and chemicals. It is widely used in a variety of industries and fields, including rubber, adhesives, coatings, papermaking, and inks. Water-based petroleum resin, with its core advantages of low VOC emissions and ease of application, holds a key position in environmentally friendly coatings, including interior and exterior wall paints and industrial coatings.

[0004] Waterborne alkyd resin coatings offer advantages such as excellent overall performance, low cost, easy construction, and a wide range of applications. They are widely used for the decoration and protection of buildings such as bridges, as well as machinery, vehicles, and ships, and account for a significant portion of the total coatings industry output. However, most waterborne alkyd coatings on the market are solvent-based, which poses environmental risks from organic solvent volatilization. Furthermore, they have shortcomings in adhesion, weatherability, drying properties, and film thickness, requiring further improvement. Summary of the Invention

[0005] In order to solve the shortcomings of existing water-based alkyd resin coating products in terms of adhesion, weather resistance, drying and film thickness, the present invention discloses a high-build water-based quick-drying alkyd coating and a preparation method thereof.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A high build, water-based, fast-drying alkyd paint comprising the following components by weight:

[0008]

[0009]

[0010] In some preferred technical solutions, the composition is composed of the following components by weight:

[0011] In the technical solution of the present invention, the modified petroleum resin emulsion is composed of the following components:

[0012]

[0013]

[0014] Furthermore, the modified petroleum resin emulsion is composed of the following components:

[0015]

[0016] In the modified petroleum resin emulsion, the polyester resin is 389-8 alkyd resin produced by Jiangsu Sanmu Group Co., Ltd.; the emulsifier is one or more of sodium dodecyl diphenyl ether disulfonate, sodium dodecylbenzenesulfonate, OP-10, OP-4, and OP-20; the emulsion stabilizer is one or more of cellulose and polyvinyl alcohol; and the dispersant is one or more of sodium lignin sulfonate, calcium lignin sulfonate, sodium dodecyl sulfonate, and calcium dodecyl sulfonate.

[0017] In the technical solution of the present invention, the modified petroleum resin emulsion is prepared by the following method:

[0018] (1) Adding polyester resin to a reaction kettle, heating it to 80-90° C. while stirring, then performing reduced pressure distillation to remove the solvent, and after returning to normal pressure, adding C5 / C9 copolymerized petroleum resin, heating it to 120-170° C. while stirring, and lowering the temperature to 100-120° C. after reaching a molten state, adding propylene glycol methyl ether acetate and a dispersant, and stirring uniformly;

[0019] (2) dissolving the emulsifier and the emulsion stabilizer in water to obtain an emulsifier aqueous solution, then lowering the temperature of the reactor to 80-100°C, slowly adding the emulsifier aqueous solution under stirring conditions and mixing, then adding the remaining water, stirring at a speed of 1200-1500 r / min for 2-3 hours, cooling the system and discharging the material to obtain a modified petroleum resin emulsion.

[0020] In the technical solution of the present invention: the water-based modified alkyd resin is KW-8401 produced by Kehuai Industrial (Shanghai) Co., Ltd.; the water-based modified epoxy ester resin is GS-5000B produced by Changzhou Guangshu Chemical Technology Co., Ltd.;

[0021] The drying agent is HDL-061 produced by Shanghai Huayi Fine Chemical Co., Ltd.; the cosolvent is ethylene glycol monobutyl ether (CAS No.: 111-76-2); the pH adjuster is dimethylethanolamine; the anti-flash rust agent is WX-9192 produced by Qingdao Enze Chemical Co., Ltd.;

[0022] The defoaming agent is one or more of Evonik TEGO Airex 901W, Evonik TEGO Airex 902W, BYK-024, and BYK-028;

[0023] The wetting agent is one or more of Evonik TEGO Twin 4100, BYK-153, and Dow TRITON CF-10;

[0024] The leveling agent is one or more of BASF Hydropalat WE3322 and BYK-333;

[0025] The rheological additive is one or more of BYK-AQUAGEL 7100 and Hemmings RHEOLATE 299;

[0026] The anti-settling agent is one or more of Desbaron 64200-20, Desbaron 4200-10, and Hemmingstead 202P.

[0027] In the technical solution of the present invention, the aqueous mixed pigment slurry is composed of the following components:

[0028]

[0029] Preferably, the aqueous mixed pigment slurry is composed of the following components:

[0030]

[0031] In the aqueous mixed pigment slurry: the feldspar powder is the modified feldspar powder CSP-1C produced by Jiangsu Qunxin Powder Technology Co., Ltd.; the titanium powder is ABT-675 produced by Anhui Aobang New Materials Co., Ltd.; the water-based bentonite is SMP-HV1 produced by Zhejiang Fenghong New Materials Co., Ltd.;

[0032] Preferably, the aqueous mixed pigment slurry is prepared by the following method:

[0033] Add 27000 super dispersant, talcum powder, carbon black, calcium carbonate, water, feldspar powder, titanium dioxide powder and water-based bentonite into the dispersion tank according to weight percentage, disperse for 30 to 40 minutes under stirring, then transfer to high-speed grinding and dispersion equipment, grind for 4.5 to 6 hours, and when the fineness is less than 30μm, filter the discharge to obtain the water-based mixed pigment slurry.

[0034] A method for preparing the above-mentioned high-build water-based quick-drying alkyd coating comprises the following process steps:

[0035] Add water-based modified alkyd resin, modified petroleum resin emulsion, water-based modified epoxy ester resin, water and cosolvent into a dispersion tank according to weight percentage, disperse for 5 to 15 minutes under stirring, then slowly add drying agent, anti-flash rust agent and water-based mixed pigment slurry, disperse for 15 to 25 minutes, then add pH regulator, defoamer, wetting agent, leveling agent, rheological additive and anti-settling agent, disperse for 30 to 45 minutes; after passing the test, filter and package.

[0036] Beneficial effects of the present invention:

[0037] The product of the present invention has excellent flexibility, adhesion, corrosion resistance and chemical resistance. The paint film after sufficient drying is subjected to an acid and alkali resistance test (determined according to GB / T 9754-1988). The paint film surface has no abnormalities, no blistering, no rust, and no falling off after 96 hours. After a water resistance test (determined according to GB / T 1733-1993) for 720 hours, the paint film has no abnormalities. At this time, the paint film adhesion of the product is tested according to the national standard GB / T 9286-1998. The paint film adhesion of the product can reach level 1 or even level 0.

[0038] The product of the present invention has high weather resistance, good gloss and color retention, excellent UV resistance, no discoloration or loss of gloss during long-term use indoors and outdoors, and the paint film has long-lasting aging resistance. Under xenon lamp accelerated aging (measured according to GB / T 1865-2009), the UV aging resistance can reach more than 1000 hours.

[0039] The product of the present invention has excellent salt water resistance and salt spray resistance. After fully cured, the paint film was tested for salt water resistance (GB / T 9274-1988) and salt spray resistance (GB / T 10125-2012), and showed no abnormalities on the paint film surface after 480 hours, with no blistering, rusting, or shedding.

[0040] The product of the present invention has high hardness, wear resistance and scratch resistance. The hardness test of the fully dried paint film (measured according to GB / T 6739-2006) shows that the pencil hardness can reach HB, showing excellent wear resistance and scratch resistance.

[0041] The product of the present invention does not require pre-spraying of primer on the metal substrate. A coating with excellent adhesion, high weather resistance, high film thickness and fast drying can be obtained by directly spraying the coating of the present invention on the treated substrate, thereby saving time, manpower and material costs.

[0042] The product of the present invention possesses outstanding environmental protection characteristics. Using water-based acrylic modified alkyd resin, modified petroleum resin, and water-based acrylic modified epoxy ester resin as its base resin, the product reduces the amount of irritating volatile compounds used in the coating formulation and application process, significantly lowering the product's VOC content. It complies with the comprehensive requirements of the national environmental protection standard HJ / T 201-2005, "Technical Requirements for Environmental Labeling Products: Water-Based Coatings."

[0043] The present invention achieves the above effects due to the following reasons: (1) The present invention adopts a modified petroleum resin emulsion, which is prepared by co-melting and emulsifying C5 / C9 copolymerized petroleum resin and polyester resin at high temperature. The C5 / C9 copolymerized petroleum resin is copolymerized by C5 and C9 fractions, combining the advantages of C5 and C9 resins, and has good acid and alkali resistance, chemical resistance, water resistance and other properties; polyester resin is a soybean oil medium oil alkyd resin with super long weather resistance, excellent salt spray resistance and excellent chemical resistance; the water-based petroleum resin emulsion prepared after co-melting and emulsification not only takes into account the performance advantages of both, but also has the characteristics of low VOC emissions and excellent stability. (2) The present invention adopts a water-based modified alkyd resin, which has excellent drying properties, water resistance, salt spray resistance and weather resistance. While giving the paint film these properties, it can also make the coating have good adhesion, hardness, flexibility, rust resistance and gloss and color retention. (3) The present invention adopts a water-based modified epoxy ester resin, which is a resin modified by epoxy, oleic acid, and acrylic acid, and can make the paint film have very good drying properties, gloss, adhesion, water resistance, and salt spray resistance. (4) The present invention adopts a water-based alkyd drier, which is a new generation of water-based cobalt drier. It not only has good quick drying properties, but also can effectively increase the hardness of the paint film after it is dried, greatly improving the hydrolysis resistance of the water-based system, and can significantly improve the water resistance, adhesion, chemical corrosion resistance, weather resistance, mechanical properties, etc. of the water-based resin paint film. (5) The present invention adopts an organic polymer flash rust inhibitor, in which the organic polymer can react with the metal ions in the corrosive medium to generate an insoluble polymer, which is coated on the metal surface and inhibits the electrochemical corrosion of the metal. In addition, it can also form a metal passivation film on the metal surface in contact with water to isolate the metal from water, thereby inhibiting the corrosion of the metal. (6) The present invention uses a soft and highly dispersible titanium powder containing amphoteric oxides, light and heat stabilizers, and silicon-aluminum coating agents. It has strong weather resistance and anti-powdering properties, and is heat-resistant, high-temperature resistant, and not prone to yellowing. It not only has excellent filling performance in the system, but also has outstanding coloring ability. (7) The present invention uses a modified feldspar powder, which is processed from high-purity, chemically inert feldspar raw materials. The mesh protective film formed on the outside of the feldspar powder particles can effectively enhance the durability of the coating, prevent chemical corrosion, and make the paint film exhibit excellent weathering and wear resistance. (8) The present invention uses a water-based bentonite rheological additive, which is a high-purity montmorillonite clay that has been purified, nano-modified, and thickened. It has excellent swelling, colloidal dispersibility, suspension, thickening and thixotropy in water, and can significantly improve the anti-settling, stability and rheological properties of the water-based coating system. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the embodiments, but the protection scope of the present invention is not limited thereto.

[0045] The components of the present invention are commercially available, including but not limited to the following sources:

[0046] KW-8401 water-based modified alkyd resin:

[0047] http: / / www.snyto.com / product-detail.html?tabId=471567918174310400&name=%E6%B0%B4%E6%80%A7%E5%8D%95%E7%BB%84%E4%BB%BD%E8%87%AA%E5%B9%B2%E6%BC%86%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88&id=511027715164344320GS-5000B Water-based modified epoxy ester resin:

[0048] https: / / www.czgshgkj.cn / ?content / 23

[0049] 389-8 Alkyd Resin:

[0050] http: / / sanmuresin.com / readpro.asp?id=8&boardid=1&classid=1HDL-061 Water-based Alkyd Drier:

[0051] https: / / www.chinascc.com / cn / product_details_1f.html

[0052] WX-9192 Anti-flash rust agent:

[0053] http: / / www.qdenze.com / products / fsxjwx3217.html

[0054] Evonik TEGOAirex 901W defoamer:

[0055] https: / / b2b.baidu.com / land?id=ae825abf6abcaef7f1dd9e06b2d1ab4310

[0056] Evonik TEGOAirex 902W defoamer:

[0057] https: / / b2b.baidu.com / land?id=76e869b873900e4f0cbc952cfe4a91d810&jybtf=5 BYK-024 defoamer:

[0058] https: / / www.byk.com / en / products / additive-guide / byk-024?search=true

[0059] BYK-028 defoamer:

[0060] https: / / www.byk.com / en / products / additive-guide / byk-028?search=true

[0061] Evonik TEGO Twin 4100 wetting agent:

[0062] https: / / b2b.baidu.com / land?id=77a8b32a8c35576894e2cbf823d8ce0110

[0063] BYK-153 wetting agent:

[0064] https: / / www.byk.com / en / products / additives-by-name / byk-153

[0065] Dow TRITON CF-10 wetting agent:

[0066] https: / / b2b.baidu.com / land?id=cfec6f42977ee81b6ac859cb9cc4683f10

[0067] BASF Hydropalat WE3322 leveling agent:

[0068] https: / / b2b.baidu.com / land?id=0ccf6f7eec6ec5820b9d4addd5129cb910

[0069] BYK-333 leveling agent:

[0070] https: / / www.byk.com / en / products / additives-by-name / byk-333

[0071] BYK-AQUAGEL 7100 rheological additive:

[0072] https: / / www.byk.com / en / products / additives-by-name / byk-aquagel-7100

[0073] Hemmingsdeqian RHEOLATE 299 rheological additive:

[0074] https: / / b2b.baidu.com / land?id=3a7bdf912ed1e5548eabccd5e1318a0410

[0075] Desparon 64200-20 anti-settling agent:

[0076] https: / / b2b.baidu.com / land?id=daf220e0123ea7f5751274845aa77bcd10

[0077] Desparon 4200-10 anti-settling agent:

[0078] https: / / b2b.baidu.com / land?id=daf220e0123ea7f5751274845aa77bcd10

[0079] Hemmingsdeqian 202P anti-settling agent:

[0080] https: / / www.4006787252.com / article_read_16293.html

[0081] CSP-1C modified feldspar powder:

[0082] http: / / www.yzqunxin.com / Show / ?cid=97

[0083] ABT-675 titanium powder:

[0084] https: / / detail.1688.com / offer / 548815924040.html?spm=a2615.2177701.0.0.114c4aa0EZZkxB SMP-HV1 water-based bentonite:

[0085] https: / / www.zjfenghong.cn / product / SMP_HV1-cn.html

[0086] F0305 water-based petroleum resin emulsion:

[0087] https: / / b2b.baidu.com / land?url=https%3A%2F%2Fb2bwork.baidu.com%2Fland%3Flid%3D1805087099700084347&query=%E6%B0%B4%E6%80%A7%E7%9F%B3%E6%B2%B9%E6%A0%91%E8%84%82&lattr=&xzhid=35887651&pi=b2b.s.main.8..7812590441364210&category=%E5%8C%96%E5%B7%A5%E8 %83%BD%E6%BA%90%3B%E5%A4%A9%E7%84%B6%2F%E5%90%88%E6%88%90%E6%A0%91%E8%84%82%3B%E5%85%B6%E4%BB%96%E6%A0%91%E8% 84%82&fid=67174400%2C1745286509102&iid=8b4ca374bfa06cea00444861349e7b3e&miniId=8469&jid=1186693910&prod_type=0

[0088] The preparation steps of the high-build water-based quick-drying alkyd coatings of Examples 1 to 4 and Comparative Examples 1 to 4 are as follows (see Table 1 for material ratios and Table 2 for test results):

[0089] (1) Preparation of water-based mixed pigment slurry:

[0090] Add 3 parts of 27000 super dispersant, 13 parts of talc powder, 8 parts of carbon black, 12 parts of calcium carbonate, 24 parts of feldspar powder, 13 parts of titanium dioxide powder, 27 parts of water and 2 parts of aqueous bentonite into a dispersion tank by weight, disperse for 40 minutes under stirring, then transfer to a high-speed grinding and dispersion equipment and grind for 5 hours. When the fineness is less than 30 μm, filter the discharge to obtain an aqueous mixed pigment slurry.

[0091] Among them: the feldspar powder is the modified feldspar powder CSP-1C produced by Jiangsu Qunxin Powder Technology Co., Ltd.; the titanium powder is ABT-675 produced by Anhui Aobang New Materials Co., Ltd.; the water-based bentonite is SMP-HV1 produced by Zhejiang Fenghong New Materials Co., Ltd.

[0092] (2) Preparation of modified petroleum resin emulsion:

[0093] 1) Add 20 parts of polyester resin to a reactor, heat to 90° C. under stirring, then perform vacuum distillation to remove the solvent, return to normal pressure, add 50 parts of C5 / C9 copolymerized petroleum resin, heat to 170° C. under stirring, lower the temperature to 100° C. after reaching a molten state, add 10 parts of propylene glycol methyl ether acetate and 2 parts of dispersant, and stir uniformly;

[0094] 2) Dissolve 2 parts of emulsifier and 1 part of emulsion stabilizer in 10 parts of water to obtain an emulsifier aqueous solution, then lower the temperature of the reactor to 80°C, add the emulsifier aqueous solution dropwise under stirring and mix well, after the addition is completed, add 5 parts of water, stir at a speed of 1400 r / min for 3 hours, cool the system, and discharge the material to obtain a modified petroleum resin emulsion.

[0095] The polyester resin is 389-8 alkyd resin produced by Jiangsu Sanmu Group Co., Ltd.; the emulsifier is sodium dodecyl diphenyl ether disulfonate, sodium dodecylbenzene sulfonate, and OP-10, mixed in a ratio of 1:1:1; the emulsion stabilizer is polyvinyl alcohol; the dispersant is sodium lignin sulfonate, calcium lignin sulfonate, and sodium dodecyl sulfonate, and the mixing ratio by mass is 2:2:1.

[0096] (3) Preparation of high build waterborne quick-drying alkyd coating:

[0097] Add water-based modified alkyd resin, modified petroleum resin emulsion, water-based modified epoxy ester resin, water, and cosolvent into a dispersion tank according to weight percentage, disperse for 10 minutes under stirring, then slowly add drying agent, anti-flash rust agent, and water-based mixed pigment slurry, disperse for 25 minutes, then add pH regulator, defoamer, wetting agent, leveling agent, rheological additive and anti-settling agent, and disperse for 45 minutes; after passing the test, filter and package.

[0098] Table 1 Addition amount of materials in each implementation and comparative example (g)

[0099]

[0100]

[0101] Table 2 Main technical indicators of high build waterborne quick-drying alkyd coatings

[0102]

[0103]

[0104] Note: [1]Spray evenly on 6 tinplates, with the film thickness controlled at about 70um. Then place them in a 25℃ environment to dry naturally. Recoat a sample every 0.5h, with the recoating film thickness still controlled at about 70um. Continue to dry naturally at 25℃ and observe whether the coating cracks. [2] Wet films were prepared using wet film preparation devices of five specifications: 50um, 100um, 150um, 200um, and 250um. The films were cured at 25°C for 7 days, and the coatings were observed to see if they turned white. The cross-cut adhesion was also tested.

[0105] The test results show that Examples 1 to 4 all obtain high-build water-based fast-drying alkyd coatings with excellent adhesion, fast drying, high hardness, acid and alkali resistance, water resistance, salt water resistance, salt spray resistance and UV aging resistance.

[0106] Comparing the test results of Example 1 and Example 2, it can be found that appropriately increasing the amount of modified petroleum resin emulsion added can improve the adhesion, hardness and drying properties of the coating without significantly affecting the gloss. Comparing the test results of Example 1 and Example 3, it can be found that as the amount of drying agent increases, the hardness and drying properties of the coating are greatly improved. Comparing the test results of Example 1 and Example 4, it can be found that appropriately increasing the amount of water-based mixed pigment slurry will reduce the degree of cross-linking and density of the paint film to a certain extent, thereby reducing the gloss of the coating. However, it can still show good performance in water resistance, salt water resistance, salt spray resistance, acid and alkali resistance, and aging resistance tests.

[0107] In order to further illustrate the beneficial effects of each material component on the coating, the present invention discloses comparative examples 1 to 4 and compares the test results with those of embodiment 1.

[0108] First, the curing film-forming scheme of "KW-8401 water-based modified alkyd resin + modified petroleum resin emulsion + GS-5000B water-based modified epoxy ester resin" selected by the present invention is crucial to the hardness, drying, fast recoating, deep curing efficiency, acid and alkali resistance, UV aging resistance, water resistance, salt water resistance and salt spray resistance of the coating. If "KW-8401 water-based modified alkyd resin + modified petroleum resin emulsion + GS-5000B water-based modified epoxy ester resin" is replaced by "KW-8401 water-based modified alkyd resin + GS-5000B water-based modified epoxy ester resin" (Comparative Example 1), the coating hardness will decrease, the drying will slow down, the fast recoating will be poor, the deep curing efficiency will decrease, the water resistance will cause blistering and rusting, the salt water resistance and salt spray resistance will produce bubbles, and the acid and alkali resistance and UV aging resistance will be unsatisfactory.

[0109] Secondly, if the GS-5000B water-based modified epoxy ester resin is replaced by the KW-8401 water-based modified alkyd resin (Comparative Example 2), problems such as slow drying, cracking after recoating in a short time, low deep curing efficiency, severe rust resistance due to salt spray, acid and alkali blistering resistance, and insufficient UV aging resistance will occur.

[0110] Again, the preferred modified petroleum resin emulsion of the present invention, "C5 / C9 copolymerized petroleum resin + 389-8 alkyd resin," is crucial for the coating's drying properties, rapid recoatability, deep-layer curing efficiency, water resistance, salt water resistance, acid and alkali resistance, UV aging resistance, and salt spray resistance. If the modified petroleum resin emulsion is replaced with a conventional water-based petroleum resin emulsion, such as F0305 water-based petroleum resin emulsion (Comparative Example 3), problems such as decreased drying properties, rapid recoatability, and deep-layer curing efficiency will occur, as will severe blistering and rusting due to water resistance, salt water resistance, salt spray resistance, and acid and alkali resistance, as well as insufficient UV aging resistance.

[0111] Finally, the selected filler combination of "Titanium dioxide powder + modified feldspar powder + aqueous bentonite" in this invention significantly improves the coating's compactness, corrosion resistance, weatherability, and hydrophobicity. Replacing "Titanium dioxide powder + modified feldspar powder + aqueous bentonite" with conventional fillers, such as titanium dioxide + calcium carbonate + bentonite (Comparative Example 4), reduces the coating's protective properties, leading to issues such as water resistance, salt water resistance, acid and alkali resistance, salt spray resistance, blistering and rusting, and poor weather resistance.

Claims

1. A high build waterborne quick-drying alkyd paint, characterized by: By weight, it is composed of the following ingredients:

2. The high build waterborne quick-drying alkyd paint according to claim 1, characterized in that: By weight, it is composed of the following ingredients:

3. The high build waterborne quick-drying alkyd paint according to claim 1, characterized in that The modified petroleum resin emulsion is composed of the following components:

4. The high build waterborne quick-drying alkyd paint according to claim 3, characterized in that The modified petroleum resin emulsion is composed of the following components:

5. The high build waterborne quick-drying alkyd paint according to claim 3 or 4, characterized in that: The polyester resin is 389-8 alkyd resin produced by Jiangsu Sanmu Group Co., Ltd.; the emulsifier is one or more of sodium dodecyl diphenyl ether disulfonate, sodium dodecylbenzene sulfonate, OP-10, OP-4, and OP-20; the emulsion stabilizer is one or more of cellulose and polyvinyl alcohol; and the dispersant is one or more of sodium lignin sulfonate, calcium lignin sulfonate, sodium dodecyl sulfonate, and calcium dodecyl sulfonate.

6. The high build water-based quick-drying alkyd paint according to claim 3 or 4, characterized in that The modified petroleum resin emulsion is prepared by the following method: (1) Adding polyester resin to a reaction kettle, heating it to 80-90° C. while stirring, then performing reduced pressure distillation to remove the solvent, and after returning to normal pressure, adding C5 / C9 copolymerized petroleum resin, heating it to 120-170° C. while stirring, and lowering the temperature to 100-120° C. after reaching a molten state, adding propylene glycol methyl ether acetate and a dispersant, and stirring uniformly; (2) dissolving the emulsifier and the emulsion stabilizer in water to obtain an emulsifier aqueous solution, then lowering the temperature of the reactor to 80-100°C, slowly adding the emulsifier aqueous solution under stirring conditions and mixing, then adding the remaining water, stirring at a speed of 1200-1500 r / min for 2-3 hours, cooling the system and discharging the material to obtain a modified petroleum resin emulsion.

7. The high build waterborne quick-drying alkyd paint according to claim 1, characterized in that: The waterborne modified alkyd resin is KW-8401 produced by Kehuai Industrial (Shanghai) Co., Ltd.; the waterborne modified epoxy ester resin is GS-5000B produced by Changzhou Guangshu Chemical Technology Co., Ltd. The drying agent is HDL-061 produced by Shanghai Huayi Fine Chemical Co., Ltd.; the cosolvent is ethylene glycol monobutyl ether (CAS No.: 111-76-2); the pH adjuster is dimethylethanolamine; the anti-flash rust agent is WX-9192 produced by Qingdao Enze Chemical Co., Ltd.; The defoaming agent is one or more of Evonik TEGO Airex 901W, Evonik TEGO Airex 902W, BYK-024, and BYK-028; The wetting agent is one or more of Evonik TEGO Twin 4100, BYK-153, and Dow TRITON CF-10; The leveling agent is one or more of BASF Hydropalat WE3322 and BYK-333; The rheological additive is one or more of BYK-AQUAGEL 7100 and Hemmings RHEOLATE 299; The anti-settling agent is one or more of Desbaron 64200-20, Desbaron 4200-10, and Hemmingstead 202P.

8. The high build waterborne quick-drying alkyd paint according to claim 1, characterized in that The aqueous mixed pigment slurry is composed of the following components: Preferably, the aqueous mixed pigment slurry is composed of the following components:

9. The high-build, water-based, quick-drying alkyd paint according to claim 8, characterized in that: The feldspar powder is modified feldspar powder CSP-1C produced by Jiangsu Qunxin Powder Technology Co., Ltd. The titanium powder is ABT-675 produced by Anhui Aobang New Materials Co., Ltd.; the water-based bentonite is SMP-HV1 produced by Zhejiang Fenghong New Materials Co., Ltd.; Preferably, the aqueous mixed pigment slurry is prepared by the following method: Add 27000 super dispersant, talcum powder, carbon black, calcium carbonate, water, feldspar powder, titanium dioxide powder and water-based bentonite into the dispersion tank according to weight percentage, disperse for 30 to 40 minutes under stirring, then transfer to high-speed grinding and dispersion equipment, grind for 4.5 to 6 hours, and when the fineness is less than 30μm, filter the discharge to obtain the water-based mixed pigment slurry.

10. A method for preparing the high build waterborne quick-drying alkyd coating according to claim 1 or 2, characterized in that: The process steps include: Add water-based modified alkyd resin, modified petroleum resin emulsion, water-based modified epoxy ester resin, water and cosolvent into a dispersion tank according to weight percentage, disperse for 5 to 15 minutes under stirring, then slowly add drying agent, anti-flash rust agent and water-based mixed pigment slurry, disperse for 15 to 25 minutes, then add pH regulator, defoamer, wetting agent, leveling agent, rheological additive and anti-settling agent, disperse for 30 to 45 minutes; after passing the test, filter and package.

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