WO2024001005A1 - 一种环保型水性排污井盖专用漆及其制备方法 - Google Patents

一种环保型水性排污井盖专用漆及其制备方法 Download PDF

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WO2024001005A1
WO2024001005A1 PCT/CN2022/133282 CN2022133282W WO2024001005A1 WO 2024001005 A1 WO2024001005 A1 WO 2024001005A1 CN 2022133282 W CN2022133282 W CN 2022133282W WO 2024001005 A1 WO2024001005 A1 WO 2024001005A1
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parts
water
add
special paint
stir
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PCT/CN2022/133282
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English (en)
French (fr)
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张鑫
闫树德
王亚轩
郑齐
田军
黄星雨
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广东衡光新材料科技有限公司
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Publication of WO2024001005A1 publication Critical patent/WO2024001005A1/zh

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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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/80—Processes for incorporating ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate

Definitions

  • the invention belongs to the field of water-based coatings, and specifically relates to an environmentally friendly water-based special paint for sewage manhole covers and a preparation method thereof.
  • the present invention provides an environmentally friendly water-based special paint for sewage manhole covers and a preparation method thereof.
  • the environmentally friendly water-based sewage manhole cover special paint of the present invention has low VOC content, effectively improves odor, and has good environmental friendliness, and the paint film formed by the special paint has excellent impact resistance, weather resistance, salt spray resistance, adhesion, hardness, etc. , and its indicators all meet the coating industry standard HG/T4758-2014.
  • An environmentally friendly water-based special paint for sewage manhole covers including 15-25 parts by weight of water-based acrylic emulsion, 2-5 parts of water-based alkyd resin, 20-30 parts of water, and 0.05-0.15 parts of defoaming agent, 0.2-0.5 parts of dispersant, 0.3-0.8 parts of PH regulator, 0.5-1.0 parts of film-forming additives, 1.3-3.8 parts of anti-flash rust additives, 0.2-0.5 parts of carbon black, 1.5- 3.5 parts of titanium dioxide, 10-15 parts of heavy calcium, 8-16 parts of talc powder, 5-10 parts of mica powder, 0.45-1.2 parts of thickener, 2-5 parts of anti-settling thixotropic agent, 0.05 -0.15 parts of drier, 0.1-0.3 parts of anti-scratch additives.
  • an environmentally friendly water-based sewage manhole cover special paint includes, in parts by weight, 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming additive, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 15 parts of heavy calcium, 15 parts Talcum powder, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, 0.1 part of anti-scratch additive.
  • the dynamic viscosity of the water-based acrylic emulsion is 800-2500 mpa.s, and the solid content is 44-46%.
  • the viscosity of the water-based alkyd resin is 100-160 s measured at 25°C using a formatted tube viscometer. Solid content is 70-74%.
  • the defoaming agent is one or both of ST2410 defoaming agent and NXZ defoaming agent.
  • the pH adjuster is one or both of dimethylethanolamine and triethylamine.
  • the film-forming assistant consists of the following components by weight: 1-1.5 parts of alcohol lipid 12, 1 part of dipropylene glycol butyl ether.
  • the anti-flash rust additive consists of the following components by weight: 1.5-3 parts of an aqueous solution with a sodium nitrite content of 15%, and 1 part of an aqueous solution with a sodium molybdate content of 10%.
  • a method for preparing environmentally friendly water-based sewage manhole cover special paint including the following steps:
  • B Add 35-40% of the total amount of water into the container and stir. During the stirring process, add 13%-17% of the total amount of pH regulator. After stirring evenly, add 40-60% of the total amount of defoaming agent. , 40-60% of the total amount of dispersant, 40-60% of the total amount of carbon black, 40-60% of the total amount of titanium dioxide, 40-60% of the total amount of talc powder, 40-60% of the total amount of heavy calcium , 40-60% of the total amount of mica powder and 40-60% of the total amount of anti-settling thixotropic agent, continue stirring at a speed of 1000-1500r/min for 20-35min, grind the mixture obtained after stirring to obtain the early slurry ,spare;
  • heavy calcium and talc powder are used to replace barium sulfate and composite iron-titanium powder in the existing water-based paint components.
  • heavy calcium or talc powder When heavy calcium or talc powder is used alone as a filler, it has an enhanced weather resistance effect on the water-based paint. It is not as good as barium sulfate or titanium composite powder, but when heavy calcium and talc powder are used together, heavy calcium and talc powder are compounded with other components to play a synergistic and reinforcing effect; manhole cover rust is usually due to long-term exposure to the air It has an oxidation reaction with oxygen, or is corroded by oxygen elements in the water to become oxides. Heavy calcium is stable in the air and insoluble in water.
  • the talcum powder chemical It has stable properties, uniform particle size and strong dispersion, which strengthens the interface bond between the paint film and the product. Together with other components in the formula, it can jointly improve the anti-rust and water-resistant properties of the paint.
  • the present invention limits the stirring rate and stirring time of the preparation method.
  • the stirring rate is too slow, the paint liquid is difficult to disperse and is prone to agglomeration and thickening. If the stirring rate is too fast, it is easy to cause demulsification of the product emulsion.
  • the stirring time is to fully mix the components and achieve the best effects of additives, thickeners, etc. If the time is too short, the stirring will be uneven. If the time is too long, the product temperature will be high and some additives will volatilize.
  • the present invention uses XG-9021 water-based acrylic emulsion and XG-818B water-based alkyd resin produced by Hengshui Xinguang New Material Technology Co., Ltd. Good compatibility ensures excellent density of the paint film, making the hardness of the paint film reach the HB level. At the same time, the functional monomers in it can also improve the water resistance, salt spray resistance and stability of the paint film.
  • the pH regulator, defoaming agent, dispersant, carbon black, titanium dioxide, talc powder, heavy calcium, mica powder, and anti-settling thixotropic agent in the present invention are added in batches at different nodes.
  • the adding method of the components is controlled so that the environmentally friendly water-based sewage manhole cover special paint has the characteristics of good fullness and high adhesion.
  • the water-based acrylic emulsion in the present invention is XG-9021 water-based acrylic emulsion from Hengshui Xinguang New Material Technology Co., Ltd.
  • the water-based alkyd resin is XG-818B water-based alkyd resin from Hengshui Xinguang New Material Technology Co., Ltd.
  • the anti-settling thixotropic additive It is the organic bentonite LT produced by Hemmings Deqian Company.
  • the dispersant is the 180 water-oil universal dispersant produced by Jiangxi Longhai Chemical Co., Ltd.
  • the drier is the Octa-Soligen123 drier produced by Borchers, Germany.
  • the thickener is RHEOLATE299 (polyether polyurethane dispersion) produced by Hemmings Deqian Company
  • the anti-scratch additive is Glide492 flow aid produced by Evonik Specialty Chemicals (Shanghai) Co., Ltd.
  • the heavy calcium particle size is 800 mesh.
  • the particle size of the talc powder is 1250 mesh, and the water used is deionized water; other raw materials used can be purchased from the market unless otherwise specified.
  • 20 parts of water-based acrylic emulsion 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, and 0.4 parts of dispersant , 0.6 parts of pH regulator, 0.8 parts of film-forming additive, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 15 parts of heavy calcium, 15 parts of talc powder, 10 parts of mica powder, thickener 0.45 parts, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, 0.1 part of anti-scratch additive;
  • the defoaming agent is a mixture of 0.03 parts ST2410 defoaming agent and 0.02 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.3 parts dimethylethanolamine and 0.3 parts triethylamine
  • the film-forming aid is 0.4 parts alcohol.
  • the anti-flash rust additive is a mixture of 1.5 parts of an aqueous solution with a sodium nitrite content of 15% and 0.5 parts of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 400r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 10 minutes, add the early slurry obtained in step A and stir. After 15 minutes, add the remaining 0.03 parts of defoaming agent, 0.2 parts of dispersant, 0.25 parts of carbon black, 1.5 parts of titanium dioxide, 9 parts of talc powder, 9 parts of heavy calcium, 5 parts of mica powder, and 1.5 parts of anti-settling thixotropic agent. Then add 0.1 part of anti-scratch additive and continue stirring for 15 minutes. Add 0.45 part of thickener to the mixed paint in four times to obtain an environmentally friendly water-based special paint for sewage manhole covers.
  • the defoaming agent is a mixture of 0.06 parts ST2410 defoaming agent and 0.04 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.24 parts dimethylethanolamine and 0.36 parts triethylamine
  • the film-forming aid is 0.3 parts alcohol.
  • a mixture of grease 12 and 0.2 parts of dipropylene glycol butyl ether, the anti-flash rust additive is a mixture of 1.2 parts of an aqueous solution with a sodium nitrite content of 15% and 0.8 parts of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 600r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 5 minutes, add the early slurry obtained in step A and stir. After 8 minutes, add the remaining 0.05 parts of defoaming agent, 0.2 parts of dispersant, 0.3 parts of carbon black, 1.2 parts of titanium dioxide, 6 parts of talc powder, 6 parts of heavy calcium, 6 parts of mica powder, and 1.8 parts of anti-settling thixotropic agent. Then add 0.3 parts of the anti-scratch additive and continue stirring for 8 minutes, and then add 0.5 parts of the thickener to the mixed paint in four times to obtain an environmentally friendly water-based special paint for sewage manhole covers.
  • the defoaming agent is a mixture of 0.1 parts ST2410 defoaming agent and 0.05 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.4 parts dimethylethanolamine and 0.4 parts triethylamine
  • the film-forming aid is 0.5 parts alcohol.
  • a mixture of grease 12 and 0.5 parts of dipropylene glycol butyl ether, the anti-flash rust additive is a mixture of 0.75 parts of an aqueous solution with a sodium nitrite content of 15% and 0.55 parts of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 500r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 8 minutes, add the early slurry obtained in step A and stir. After 12 minutes, add the remaining 0.06 parts of defoaming agent, 0.3 parts of dispersant, 0.08 parts of carbon black, 0.9 parts of titanium dioxide, 8 parts of talc powder, 5 parts of heavy calcium, 2 parts of mica powder, and 0.8 parts of anti-settling thixotropic agent. Then add 0.2 parts of the anti-scratch additive and continue stirring for 12 minutes, and then add 1.2 parts of the thickener to the mixed paint in four times to obtain an environmentally friendly water-based special paint for sewage manhole covers.
  • the defoaming agent is a mixture of 0.1 parts ST2410 defoaming agent and 0.05 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.15 parts dimethylethanolamine and 0.15 parts triethylamine
  • the film-forming aid is 0.5 parts alcohol.
  • the anti-flash rust additive is a mixture of 2 parts of an aqueous solution with a sodium nitrite content of 15% and 1 part of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 500r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 8 minutes, add the early slurry obtained in step A and stir. After 12 minutes, add the remaining 0.06 parts of defoaming agent, 0.1 parts of dispersant, 0.2 parts of carbon black, 1.5 parts of titanium dioxide, 5 parts of talc powder, 7 parts of heavy calcium, 5 parts of mica powder, and 2 parts of anti-settling thixotropic agent. Then add 0.3 parts of the anti-scratch additive and continue stirring for 12 minutes, and then add 1 part of the thickener into the mixed paint in four times to obtain an environmentally friendly water-based sewage manhole cover special paint.
  • the defoaming agent is a mixture of 0.1 parts ST2410 defoaming agent and 0.05 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.3 parts dimethylethanolamine and 0.3 parts triethylamine
  • the film-forming aid is 0.4 parts alcohol.
  • the anti-flash rust additive is a mixture of 2 parts of an aqueous solution with a sodium nitrite content of 15% and 1 part of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 500r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 8 minutes, add the early slurry obtained in step A and stir. After 12 minutes, add the remaining 0.06 parts of defoaming agent, 0.25 parts of dispersant, 0.2 parts of carbon black, 1.5 parts of titanium dioxide, 7 parts of talc powder, 8 parts of heavy calcium, 4 parts of mica powder, and 1.7 parts of anti-settling thixotropic agent. Then add 0.2 parts of the anti-scratch additive and continue stirring for 12 minutes, and then add 0.85 parts of the thickener to the mixed paint in four times to obtain an environmentally friendly water-based special paint for sewage manhole covers.
  • the defoaming agent is a mixture of 0.06 parts ST2410 defoaming agent and 0.04 parts NXZ defoaming agent
  • the pH regulator is a mixture of 0.3 parts dimethylethanolamine and 0.4 parts triethylamine
  • the film-forming aid is 0.4 parts alcohol.
  • the anti-flash rust additive is a mixture of 2 parts of an aqueous solution with a sodium nitrite content of 15% and 1 part of an aqueous solution with a sodium molybdate content of 10%;
  • step E Add the emulsion varnish obtained in step C into the stirring kettle and stir at a speed of 500r/min. During the stirring process, add the resin varnish obtained in step D. After stirring for 8 minutes, add the early slurry obtained in step A and stir. After 12 minutes, add the remaining 0.05 parts of defoaming agent, 0.2 parts of dispersant, 0.2 parts of carbon black, 1.5 parts of titanium dioxide, 4 parts of talc powder, 5 parts of heavy calcium, 5 parts of mica powder, and 1.4 parts of anti-settling thixotropic agent. Then add 0.2 parts of the anti-scratch additive and continue stirring for 12 minutes, and then add 0.9 parts of the thickener to the mixed paint in four times to obtain an environmentally friendly water-based special paint for sewage manhole covers.
  • Example 7 The only difference between this example and Example 1 is that the defoaming agent in Example 7 is 0.05 parts of ST2410 defoaming agent and does not contain NXZ defoaming agent.
  • the types, component contents and preparation processes of the remaining components are the same as those in Example 1. be consistent.
  • Example 8 The only difference between this example and Example 1 is that the defoaming agent in Example 8 is 0.05 parts of NXZ defoaming agent and does not contain ST2410 defoaming agent.
  • the types, component contents and preparation processes of the remaining components are the same as those in Example 1. be consistent.
  • Example 8 The only difference between this example and Example 1 is that the pH regulator in Example 8 is 0.6 parts of dimethylethanolamine and does not contain triethylamine. The types, component contents and preparation processes of the remaining components remain the same as those in Example 1. consistent.
  • Example 8 The only difference between this example and Example 1 is that the pH regulator in Example 8 is 0.6 parts of triethylamine and does not contain dimethylethanolamine. The types, component contents and preparation processes of the remaining components remain the same as those in Example 1. consistent.
  • Example 1 The only difference between this comparative example and Example 1 is that the aqueous acrylic emulsion used in Comparative Example 1 has a viscosity of 2500-4000 mpa.s and a solid content of 46-50%. The remaining component types, component contents and preparation processes are the same as those of Example 1. Example 1 remains the same.
  • Example 2 The only difference between this comparative example and Example 1 is that the water-based alkyd resin used in Comparative Example 2 has a viscosity of 160-200s and a solid content of 74-76% measured at 25°C using a grid tube viscometer. The remaining components The types, component contents and preparation process are consistent with Example 1.
  • Each component and content is: 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming aid, 2 parts of anti-flash rust additive, 0.5 part of carbon black, 3 parts of titanium dioxide, 30 parts of heavy calcium, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, anti-scratch 0.1 part of injury aid;
  • the preparation method of the above-mentioned environmentally friendly water-based sewage manhole cover special paint is the same as in Example 1, the only difference is that the components do not contain talc powder.
  • Each component and content is: 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming aid, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 30 parts of talc powder, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, anti-scratch 0.1 part of injury aid;
  • the preparation method of the above-mentioned environmentally friendly water-based sewage manhole cover special paint is the same as in Example 1, the only difference is that the components do not contain heavy calcium.
  • Each component and content is: 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming aid, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 15 parts of barium sulfate, 15 parts of composite iron-titanium powder, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, catalyst 0.1 part of dry agent, 0.1 part of anti-scratch additive;
  • the preparation method of the above-mentioned environmentally friendly water-based sewage manhole cover special paint is the same as in Example 1, the only difference is that barium sulfate and composite iron-titanium powder are used instead of heavy calcium and talc powder.
  • Each component and content is: 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming aid, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 30 parts of barium sulfate, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, anti-scratch 0.1 part of injury aid;
  • the preparation method of the above-mentioned environmentally friendly water-based sewage manhole cover special paint is the same as in Example 1, the only difference is that barium sulfate is used instead of heavy calcium and talc powder.
  • Each component and content is: 20 parts of water-based acrylic emulsion, 3 parts of water-based alkyd resin, 26 parts of deionized water, 0.05 parts of defoaming agent, 0.4 parts of dispersant, 0.6 parts of pH regulator, 0.8 parts of film-forming aid, 2 parts of anti-flash rust additive, 0.5 parts of carbon black, 3 parts of titanium dioxide, 30 parts of composite iron-titanium powder, 10 parts of mica powder, 0.45 parts of thickener, 3 parts of anti-settling thixotropic agent, 0.1 part of drier, 0.1 part of anti-scratch additive;
  • the preparation method of the above-mentioned environmentally friendly water-based sewage manhole cover special paint is the same as in Example 1, the only difference is that composite iron-titanium powder is used instead of heavy calcium and talc powder.
  • the performance of the shape-retaining water-based sewage manhole cover special paint formulated in the above examples and comparative examples is compared.
  • the performance test results are shown in Table 1-3.
  • the gloss, thermal storage stability, water resistance, salt water resistance, pencil hardness, The adhesion, impact strength, flexibility, drying time, neutral salt spray resistance, and artificial aging resistance tests are all performed in accordance with the national standard HG/T4758-2014.
  • Table 1 shows the performance test results of the water-based sewage manhole cover special paint in Examples 1-5;
  • Table 2 shows the performance test results of the water-based sewage manhole cover special paint in Examples 6-10;
  • Table 3 shows the performance test results of the water-based sewage manhole cover special paint in Comparative Examples 1-7.
  • Example 1 and Comparative Examples 3-7 in Table 1 and Table 3 It can be seen from the comparison of Example 1 and Comparative Examples 3-7 in Table 1 and Table 3 that the water-based sewage manhole cover special paint prepared by Comparative Example 3 and Comparative Example 4 using single talc powder or heavy calcium has better water resistance and The salt water resistance and neutral salt spray resistance are poor, and the hardness is low.
  • Comparative Examples 5-7 the water-based sewage manhole cover special paint prepared with barium sulfate and composite iron-titanium powder with better anti-rust properties is different from Example 1. Compared with its water resistance, salt water resistance and neutral salt spray resistance, it is also lower. It can be seen that the talcum powder and heavy calcium in the present invention and other components in the component play a mutually reinforcing and synergistic role, and are effective Improve the rust-proof and water-resistant properties of paint.

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Abstract

一种环保型水性排污井盖专用漆，属于水性涂料领域，以重量份数计，包括15-25份的水性丙烯酸乳液、2-5份的水性醇酸树脂、20-30份的水、0.05-0.15份的消泡剂、0.2-0.5份的分散剂、0.3-0.8份的PH调节剂、0.5-1.0份的成膜助剂、1.3-3.8份的防闪锈助剂、0.2-0.5份的炭黑、1.5-3.5份的钛白粉、10-15份的重钙、8-16份的滑石粉、5-10份的云母粉、0.45-1.2份的增稠剂、2-5份防沉触变剂、0.05-0.15份的催干剂、0.1-0.3份的抗划伤助剂。本发明还提供了环保型水性排污井盖专用漆的制备方法，制得的环保型水性排污井盖专用漆VOC含量低，有效改善气味，具备良好的环境友好性，且该专用漆形成的漆膜在抗冲击，耐候性，耐盐雾，附着力，硬度等方面，其指标均达到涂料行业标准HG/T4758-2014。

Description

一种环保型水性排污井盖专用漆及其制备方法 技术领域
本发明属于水性涂料领域，具体涉及一种环保型水性排污井盖专用漆及其制备方法。
背景技术
随着社会、经济的发展，城市化进程的加快，人们生活水平逐步提高，为了便捷生活污水、雨水等的快速排放及处理，城镇化的排污***起到了极大的作用，为了方便清理，及时解决出现的各种问题，需在不同时段、不同位置设置相应的排污井盖。
但是由于排污井盖长时间置于室外，加之长期暴晒雨淋等，导致其表面涂料的使用寿命严重缩减，现有的水性排污井盖专用漆所形成的漆膜在耐候性上效果一般，另外，近年来大气污染严重，雾霾影响甚大，尤其是一些有毒有害气体的排放，直接导致了环境的污染，因此对表面涂料的环保性能也提出了新的要求。
发明内容
本发明为了解决上述现有技术中存在的问题，本发明提供了一种环保型水性排污井盖专用漆及其制备方法。本发明的环保型水性排污井盖专用漆VOC含量低，有效改善气味，具备良好的环境友好性，且该专用漆形成的漆膜在抗冲击，耐候性，耐盐雾，附着力，硬度等方面，其指标均达到涂料行业标准HG/T4758-2014。
本发明采用的具体技术方案是：
一种环保型水性排污井盖专用漆，以重量份数计，包括15-25份的水性丙烯酸乳液、2-5份的水性醇酸树脂、20-30份的水、0.05-0.15份的消泡 剂、0.2-0.5份的分散剂、0.3-0.8份的PH调节剂、0.5-1.0份的成膜助剂、1.3-3.8份的防闪锈助剂、0.2-0.5份的炭黑、1.5-3.5份的钛白粉、10-15份的重钙、8-16份的滑石粉、5-10份的云母粉、0.45-1.2份的增稠剂、2-5份防沉触变剂、0.05-0.15份的催干剂、0.1-0.3份的抗划伤助剂。
作为进一步的技术方案，一种环保型水性排污井盖专用漆，以重量份数计，包括20份的水性丙烯酸乳液、3份的水性醇酸树脂、26份的水、0.05份的消泡剂、0.4份的分散剂、0.6份的PH调节剂、0.8份的成膜助剂、2份的防闪锈助剂、0.5份的炭黑、3份的钛白粉、15份的重钙、15份的滑石粉、10份的云母粉、0.45份的增稠剂、3份防沉触变剂、0.1份的催干剂、0.1份的抗划伤助剂。
作为进一步的技术方案，所述水性丙烯酸乳液动力粘度为800-2500mpa.s，固含量为44-46％，所述水性醇酸树脂采用格式管粘度计在25℃下测量粘度为100-160s，固含量为70-74％。
作为进一步的技术方案，所述消泡剂为ST2410消泡剂、NXZ消泡剂中的一种或两种。
作为进一步的技术方案，所述PH调节剂为二甲基乙醇胺、三乙胺中的一种或两种。
作为进一步的技术方案，所述成膜助剂由以下重量份的组分组成：1-1.5份醇脂12，1份二丙二醇丁醚。
作为进一步的技术方案，所述防闪锈助剂由以下重量份的组分组成：1.5-3份亚硝酸钠含量为15％的水溶液，1份钼酸钠含量为10％的水溶液。
一种环保型水性排污井盖专用漆的制备方法，包括以下步骤：
A、按环保型水性排污井盖专用漆的配比，称取以下组分备用：15-25 份的水性丙烯酸乳液、2-5份的水性醇酸树脂、20-30份的水、0.05-0.15份的消泡剂、0.2-0.5份的分散剂、0.3-0.8份的PH调节剂、0.5-1.0份的成膜助剂、1.3-3.8份的防闪锈助剂、0.2-0.5份的炭黑、1.5-3.5份的钛白粉、10-15份的重钙、8-16份的滑石粉、5-10份的云母粉、0.45-1.2份的增稠剂、2-5份防沉触变剂、0.05-0.15份的催干剂、0.1-0.3份的抗划伤助剂；
B、取水总量的35-40％加入到容器中进行搅拌，在搅拌过程中加入PH调节剂总量的13％-17％，搅拌均匀后再依次加入消泡剂总量的40-60％、分散剂总量的40-60％、炭黑总量的40-60％、钛白粉总量的40-60％、滑石粉总量的40-60％、重钙总量的40-60％、云母粉总量的40-60％、防沉触变剂总量的40-60％，以1000-1500r/min的速率继续搅拌20-35min，将搅拌后得到的混合物研磨后得到前期浆料，备用；
C、将丙烯酸乳液加入到容器内进行搅拌，在搅拌过程中依次加入水总量的15-20％、PH调节剂总量的13％-17％、防闪锈剂、成膜助剂，以400-600r/min速率搅拌25-35min，得到乳液清漆，备用；
D、将水性醇酸树脂加入到容器内进行搅拌，取剩余的PH调节剂和剩余的催干剂加入至容器中，以300-500r/min速率搅拌5-10min，然后加入剩余的水，继续以500-600r/min速率搅拌15-20min，得到树脂清漆；
E、将乳液清漆加入到容器内进行搅拌，在搅拌过程中加入树脂清漆，搅拌均匀后，加入前期浆料，以400-600r/min速率搅拌8-15min后依次加入剩余的消泡剂、分散剂、炭黑、钛白粉、滑石粉、重钙、云母粉、防沉触变剂，再加入抗划伤助剂继续搅拌8-15min，然后将增稠剂分批次加入至混合漆料中进行搅拌，得到环保型水性排污井盖专用漆。
本发明的有益效果是：
1、本发明中，通过优化设计的环保型水性排污井盖专用漆配比与制备方法结合，整个配方中的各个组分相互配合，起到了相互协同和增强的作用，所制得的一种环保型水性排污井盖专用漆不燃不爆、气味小、VOC含量低，具有优异的附着力、硬度、耐候性、耐盐雾等性能，可大幅度提高与基材间的附着力，形成高附着力保护膜，提高防护性能。
2、本发明中采用了重钙和滑石粉代替了现有水性漆组分中的硫酸钡和复合铁钛粉，重钙或滑石粉单独作为填充剂时，其对水性漆的耐候性增强效果不如硫酸钡或复合钛粉，但是当重钙和滑石粉配合使用时，重钙和滑石粉与其他组分复配协同，起到了相互协同增强作用；井盖生锈通常是由于长期暴露在空气中和氧气发生了氧化反应,或者是被水中的氧元素侵蚀成为氧化物，而重钙在空气中稳定，且不溶于水，可以有效形成致密的漆膜使被涂抹产品隔绝空气，加之滑石粉化学性质稳定，粒度均匀分散性强，增强了漆膜与产品之间的界面结合，配以配方中的其他组分，共同提高漆料的防锈耐水性能。
3、本发明通过大量实验，对制备方法的搅拌速率和搅拌时间进行限定，当搅拌速率过慢漆液不易分散，容易产生结块反粗，搅拌速率过快的话易造成产品乳液方面的破乳，搅拌时间是为了使各组分充分混合均匀，使助剂、增稠剂等效果达到最佳，时间过短了搅拌不均匀，时间过长会导致产品温度较高，部分助剂的挥发，通过对制备方法的搅拌速率和搅拌时间进行限定，避免因制备过程对产品的最终性能产生不利影响，从而提供产品综合性能稳定性。
4、本发明采用衡水新光新材料科技有限公司生产的XG-9021型水性丙烯酸乳液与XG-818B型水性醇酸树脂，XG-9021型水性丙烯酸乳液与 XG-818B型水性醇酸树脂之间具有良好的相容性，保证漆膜致密性优良，使漆膜的硬度达到HB级别的同时，其中的功能性单体还能提高漆膜的耐水性、耐盐雾性和稳定性等性能。
5、本发明中的PH调节剂、消泡剂、分散剂、炭黑、钛白粉、滑石粉、重钙、云母粉、以及防沉触变剂分批次在不同节点进行添加，通过对各组分的加入方式进行控制，使制得的环保型水性排污井盖专用漆具有丰满度好、附着力高等特点。
具体实施方式
本发明中的水性丙烯酸乳液为衡水新光新材料科技有限公司的XG-9021水性丙烯酸乳液，水性醇酸树脂为衡水新光新材料科技有限公司的XG-818B水性醇酸树脂，防沉触变助剂为海明斯德谦公司生产的有机膨润土LT，分散剂为江西省龙海化工有限公司生产的180型水油通用分散剂，催干剂为德国Borchers生产的Octa-Soligen123型催干剂，增稠剂为海明斯德谦公司生产的RHEOLATE299(聚醚聚氨酯分散体)，抗划伤助剂为赢创特种化学(上海)有限公司生产的Glide492流动助剂，重钙粒径为800目，滑石粉粒径为1250目，采用的水为去离子水；其他所用原料如无特别说明，均可由市面购买得到。
一、具体实施例
实施例1
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、重钙15份、滑石粉15份、云母粉10份、增稠剂 0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1份；
其中消泡剂为0.03份ST2410消泡剂和0.02份NXZ消泡剂组成的混合物，PH调节剂为0.3份二甲基乙醇胺和0.3份三乙胺组成的混合物，成膜助剂为0.4份醇脂12和0.4份二丙二醇丁醚组成的混合物，防闪锈助剂为1.5份亚硝酸钠含量为15％的水溶液和0.5份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水10份加入到搅拌釜中以400r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.1份，搅拌均匀后再加入消泡剂0.02份、分散剂0.2份、炭黑0.25份、钛白粉1.5份、滑石粉6份、重钙6份、云母粉5份、防沉触变剂1.5份，以1200r/min的速率继续搅拌30min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液加入到搅拌釜内以300r/min速率进行搅拌，在搅拌过程中加入去离子水5份、PH调节剂总量的0.1份、防闪锈剂2份、成膜助剂0.8份，以500r/min速率搅拌30min，得到乳液清漆，备用；
D、将水性醇酸树脂3份加入到搅拌釜内以500r/min速率搅拌，取剩余的PH调节剂0.4份和催干剂0.1份加入至搅拌釜中，继续以500r/min速率搅拌5min，然后加入去离子水11份，继续以600r/min速率搅拌15min，得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以400r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌10min后，加入步骤A得到的前期浆料，搅拌15min后依次加入剩余的消泡剂0.03份、分散剂0.2份、炭黑0.25份、钛白粉1.5份、滑石粉9份、重钙9份、云母粉5份、防沉触变剂1.5份，再加入抗划伤助剂0.1份继续搅拌15min，将增 稠剂0.45份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例2
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液23份、水性醇酸树脂2份、去离子水24份、消泡剂0.1份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.5份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、重钙15份、滑石粉15份、云母粉10份、增稠剂0.5份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.3份；
其中消泡剂为0.06份ST2410消泡剂和0.04份NXZ消泡剂组成的混合物，PH调节剂为0.24份二甲基乙醇胺和0.36份三乙胺组成的混合物，成膜助剂为0.3份醇脂12和0.2份二丙二醇丁醚组成的混合物，防闪锈助剂为1.2份亚硝酸钠含量为15％的水溶液和0.8份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水9.6份加入到搅拌釜中以500r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.102份，搅拌均匀后再加入消泡剂0.05份、分散剂0.2份、炭黑0.2份、钛白粉1.8份、滑石粉9份、重钙9份、云母粉4份、防沉触变剂1.2份，以1000r/min的速率继续搅拌35min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液加入到搅拌釜内以400r/min速率进行搅拌，在搅拌过程中加入去离子水4.8份、PH调节剂0.102份、防闪锈剂2份、成膜助剂0.5份，以600r/min速率搅拌25min，得到乳液清漆，备用；
D、将水性醇酸树脂3份加入到搅拌釜内以500r/min速率搅拌，取剩余的PH调节剂0.396份和催干剂0.102份加入至搅拌釜中，继续以400r/min速率搅拌8min，然后加入去离子水9.6份，继续以500r/min速率搅拌20min， 得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以600r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌5min后，加入步骤A得到的前期浆料，搅拌8min后依次加入剩余的消泡剂0.05份、分散剂0.2份、炭黑0.3份、钛白粉1.2份、滑石粉6份、重钙6份、云母粉6份、防沉触变剂1.8份，再加入抗划伤助剂0.3份继续搅拌8min，然后将增稠剂0.5份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例3
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液25份、水性醇酸树脂5份、去离子水30份、消泡剂0.15份、分散剂0.5份、PH调节剂0.8份、成膜助剂1份、防闪锈助剂1.3份、炭黑0.2份、钛白粉1.5份、重钙10份、滑石粉16份、云母粉5份、增稠剂1.2份、防沉触变剂2份、催干剂0.05份、抗划伤助剂0.3份；
其中消泡剂为0.1份ST2410消泡剂和0.05份NXZ消泡剂组成的混合物，PH调节剂为0.4份二甲基乙醇胺和0.4份三乙胺组成的混合物，成膜助剂为0.5份醇脂12和0.5份二丙二醇丁醚组成的混合物，防闪锈助剂为0.75份亚硝酸钠含量为15％的水溶液和0.55份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水10.5份加入到搅拌釜中以700r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.104份，搅拌均匀后再依次加入消泡剂0.09份、分散剂0.2份、炭黑0.12份、钛白粉0.6份、滑石粉8份、重钙5份、云母粉3份、防沉触变剂1.2份，以1500r/min的速率继续搅拌20min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液加入到搅拌釜内以500r/min速率进行搅拌，在搅拌过程中加入去离子水4.5份、PH调节剂总量的0.104份、防闪锈剂1.3份、成膜助剂1份，以400r/min速率搅拌35min，得到乳液清漆，备用；
D、将水性醇酸树脂5份加入到搅拌釜内以300r/min速率搅拌，取剩余的PH调节剂0.592份和催干剂0.05份加入至搅拌釜中，继续以300r/min速率搅拌10min，然后加入去离子水15份，继续以600r/min速率搅拌15min，得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以500r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌8min后，加入步骤A得到的前期浆料，搅拌12min后依次加入剩余的消泡剂0.06份、分散剂0.3份、炭黑0.08份、钛白粉0.9份、滑石粉8份、重钙5份、云母粉2份、防沉触变剂0.8份，再加入抗划伤助剂0.2份继续搅拌12min，然后将增稠剂1.2份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例4
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液15份、水性醇酸树脂5份、去离子水30份、消泡剂0.15份、分散剂0.2份、PH调节剂0.3份、成膜助剂1份、防闪锈助剂3份、炭黑0.4份、钛白粉3.5份、重钙15份、滑石粉10份、云母粉10份、增稠剂1份、防沉触变剂5份、催干剂0.15份、抗划伤助剂0.3份；
其中消泡剂为0.1份ST2410消泡剂和0.05份NXZ消泡剂组成的混合物，PH调节剂为0.15份二甲基乙醇胺和0.15份三乙胺组成的混合物，成膜助剂为0.5份醇脂12和0.5份二丙二醇丁醚组成的混合物，防闪锈助剂 为2份亚硝酸钠含量为15％的水溶液和1份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水12份加入到搅拌釜中以500r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.04份，搅拌均匀后再加入消泡剂0.09份、分散剂0.1份、炭黑0.2份、钛白粉2份、滑石粉5份、重钙8份、云母粉5份、防沉触变剂3份，以1200r/min的速率继续搅拌30min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液加入到搅拌釜内以300r/min速率进行搅拌，在搅拌过程中加入去离子水5份、PH调节剂总量的0.04份、防闪锈剂3份、成膜助剂1份，以500r/min速率搅拌30min，得到乳液清漆，备用；
D、将水性醇酸树脂5份加入到搅拌釜内以500r/min速率搅拌，取剩余的PH调节剂0.22份和催干剂0.15份加入至搅拌釜中，继续以500r/min速率搅拌5min，然后加入去离子水13份，继续以600r/min速率搅拌15min，得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以500r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌8min后，加入步骤A得到的前期浆料，搅拌12min后依次加入剩余的消泡剂0.06份、分散剂0.1份、炭黑0.2份、钛白粉1.5份、滑石粉5份、重钙7份、云母粉5份、防沉触变剂2份，再加入抗划伤助剂0.3份继续搅拌12min，然后将增稠剂1份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例5
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液25份、水性醇酸树脂5份、去离子水20份、消泡剂0.15份、 分散剂0.5份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂3份、炭黑0.4份、钛白粉3份、重钙15份、滑石粉14份、云母粉8份、增稠剂0.85份、防沉触变剂3.4份、催干剂0.1份、抗划伤助剂0.2份；
其中消泡剂为0.1份ST2410消泡剂和0.05份NXZ消泡剂组成的混合物，PH调节剂为0.3份二甲基乙醇胺和0.3份三乙胺组成的混合物，成膜助剂为0.4份醇脂12和0.4份二丙二醇丁醚组成的混合物，防闪锈助剂为2份亚硝酸钠含量为15％的水溶液和1份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水8份加入到搅拌釜中以500r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.1份，搅拌均匀后再加入消泡剂0.09份、分散剂0.25、炭黑0.2份、钛白粉1.5份、滑石粉7份、重钙7份、云母粉4份、防沉触变剂1.7份，以1200r/min的速率继续搅拌30min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液25份加入到搅拌釜内以300r/min速率进行搅拌，在搅拌过程中加入去离子水4份、PH调节剂总量的0.1份、防闪锈剂3份、成膜助剂0.8份，以500r/min速率搅拌30min，得到乳液清漆，备用；
D、将水性醇酸树脂5份加入到搅拌釜内以500r/min速率搅拌，取剩余的PH调节剂0.4份和催干剂0.1份加入至搅拌釜中，继续以500r/min速率搅拌5min，然后加入去离子水8份，继续以600r/min速率搅拌15min，得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以500r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌8min后，加入步骤A得到的前期浆料，搅拌12min后依次加入剩余的消泡剂0.06份、分 散剂0.25份、炭黑0.2份、钛白粉1.5份、滑石粉7份、重钙8份、云母粉4份、防沉触变剂1.7份，再加入抗划伤助剂0.2份继续搅拌12min，然后将增稠剂0.85份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例6
A、按如下环保型水性排污井盖专用漆的配方，称取各组分备用：水性丙烯酸乳液23份、水性醇酸树脂4份、去离子水27份、消泡剂0.1份、分散剂0.4份、PH调节剂0.7份、成膜助剂0.8份、防闪锈助剂3份、炭黑0.4份、钛白粉3份、重钙15份、滑石粉8份、云母粉10份、增稠剂0.9份、防沉触变剂3.4份、催干剂0.1份、抗划伤助剂0.2份；
其中消泡剂为0.06份ST2410消泡剂和0.04份NXZ消泡剂组成的混合物，PH调节剂为0.3份二甲基乙醇胺和0.4份三乙胺组成的混合物，成膜助剂为0.4份醇脂12和0.4份二丙二醇丁醚组成的混合物，防闪锈助剂为2份亚硝酸钠含量为15％的水溶液和1份钼酸钠含量为10％的水溶液组成的混合物；
B、取去离子水10份加入到搅拌釜中以500r/min的速率进行搅拌，在搅拌过程中加入PH调节剂0.1份，搅拌均匀后再加入消泡剂0.05份、分散剂0.2份、炭黑0.2份、钛白粉1.5份、滑石粉4份、重钙10份、云母粉5份、防沉触变剂2份，以1200r/min的速率继续搅拌30min，将搅拌后得到的混合物研磨至35μm细度，得到前期浆料，备用；
C、将丙烯酸乳液23份加入到搅拌釜内以300r/min速率进行搅拌，在搅拌过程中加入去离子水5份、PH调节剂总量的0.1份、防闪锈剂3份、成膜助剂0.8份，以500r/min速率搅拌30min，得到乳液清漆，备用；
D、将水性醇酸树脂4份加入到搅拌釜内以500r/min速率搅拌，取剩余的PH调节剂0.5份和催干剂0.1份加入至搅拌釜中，继续以500r/min速率搅拌5min，然后加入去离子水12份，继续以600r/min速率搅拌15min，得到树脂清漆；
E、将步骤C得到的乳液清漆加入到搅拌釜内，以500r/min的速率进行搅拌，在搅拌过程中加入步骤D得到的树脂清漆，搅拌8min后，加入步骤A得到的前期浆料，搅拌12min后依次加入剩余的消泡剂0.05份、分散剂0.2份、炭黑0.2份、钛白粉1.5份、滑石粉4份、重钙5份、云母粉5份、防沉触变剂1.4份，再加入抗划伤助剂0.2份继续搅拌12min，然后将增稠剂0.9份分四次加入至混合漆料中，得到环保型水性排污井盖专用漆。
实施例7
本实施例与实施例1的区别仅在于，实施例7中消泡剂为0.05份ST2410消泡剂，不含NXZ消泡剂，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
实施例8
本实施例与实施例1的区别仅在于，实施例8中消泡剂为0.05份NXZ消泡剂，不含ST2410消泡剂，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
实施例9
本实施例与实施例1的区别仅在于，实施例8中PH调节剂为0.6份二甲基乙醇胺，不含三乙胺，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
实施例10
本实施例与实施例1的区别仅在于，实施例8中PH调节剂为0.6份三乙胺，不含二甲基乙醇胺，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
对比例1
本对比例与实施例1的区别仅在于，对比例1中采用的水性丙烯酸乳液粘度为2500-4000mpa.s，固含量为46-50％，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
对比例2
本对比例与实施例1的区别仅在于，对比例2中采用的水性醇酸树脂采用格式管粘度计在25℃下测量粘度为160-200s，固含量为74-76％，其余各组分种类、组分含量和制备工艺与实施例1保持一致。
对比例3
各组分及含量为：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、重钙30份、云母粉10份、增稠剂0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1份；
上述环保型水性排污井盖专用漆的制备方法同实施例1，区别仅在于组分中不含有滑石粉。
对比例4
各组分及含量为：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、滑石粉30份、云母粉10 份、增稠剂0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1份；
上述环保型水性排污井盖专用漆的制备方法同实施例1，区别仅在于组分中不含有重钙。
对比例5
各组分及含量为：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、硫酸钡15份、复合铁钛粉15份、云母粉10份、增稠剂0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1份；
上述环保型水性排污井盖专用漆的制备方法同实施例1，区别仅在于采用硫酸钡和复合铁钛粉代替重钙和滑石粉。
对比例6
各组分及含量为：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、硫酸钡30份、云母粉10份、增稠剂0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1份；
上述环保型水性排污井盖专用漆的制备方法同实施例1，区别仅在于采用硫酸钡替代重钙和滑石粉。
对比例7
各组分及含量为：水性丙烯酸乳液20份、水性醇酸树脂3份、去离子水26份、消泡剂0.05份、分散剂0.4份、PH调节剂0.6份、成膜助剂0.8份、防闪锈助剂2份、炭黑0.5份、钛白粉3份、复合铁钛粉30份、云母粉10份、增稠剂0.45份、防沉触变剂3份、催干剂0.1份、抗划伤助剂0.1 份；
上述环保型水性排污井盖专用漆的制备方法同实施例1，区别仅在于采用复合铁钛粉替代重钙和滑石粉。
二、性能测试
将上述实施例及对比例中配出的保型水性排污井盖专用漆进行性能比较，性能测试结果见表1-3，其中的光泽、热储存稳定性、耐水性、耐盐水性、铅笔硬度、附着力、抗冲击强度、柔韧性、干燥时间、耐中性盐雾、耐人工老化性测试均按照国家标准HG/T4758-2014执行，其中光泽单位值越大，表示漆膜表面越平滑，光泽度越好；VOC测试由气相色谱测试得到；开罐味道对比成品漆开罐之后的味道。
表1
Figure PCTCN2022133282-appb-000001
表2
Figure PCTCN2022133282-appb-000002
表3
Figure PCTCN2022133282-appb-000003
Figure PCTCN2022133282-appb-000004
表1为实施例1-5中的水性排污井盖专用漆进行性能测试的结果；
表2为实施例6-10中的水性排污井盖专用漆进行性能测试的结果；
表3为对比例1-7中的水性排污井盖专用漆进行性能测试的结果。
由表1-3可知，对比例1制备的水性排污井盖专用漆采用的水性丙烯酸乳液粘度、固含量较高，对比例2制备的水性排污井盖专用漆采用的水性醇酸树脂粘度、固含量较高，相比较下，采用衡水新光新材料科技有限公司生产的XG-9021型水性丙烯酸乳液和XG-818B型水性醇酸树脂的实施例1-10，由于该水性丙烯酸乳液和该水性醇酸树脂具有特定粘度和固含量，导致XG-9021型水性丙烯酸乳液和XG-818B型水性醇酸树脂之间具有很好的相容性，使其制备的环保型水性排污井盖专用漆在光泽、热储存稳定性、耐水性、耐盐水性、硬度、附着力、抗冲击强度、耐中性盐雾、耐人工老化等性能均有不同程度的提高，且VOC含量更低和开罐味道更小，更加符合环保要求。
由表1及表3的实施例1及对比例3-7对比可以看出，采用单一滑石粉或重钙的对比例3和对比例4，其制备的水性排污井盖专用漆的耐水性、耐盐水性、耐中性盐雾性能均较差，且硬度较低，对比例5-7中采用防锈性能较好的硫酸钡及复合铁钛粉制备的水性排污井盖专用漆，与实施例1 相比，其耐水性、耐盐水性、耐中性盐雾性能也较低，可见本发明中的滑石粉、重钙与组分中的其他成分起到了相互增效和协同的作用，有效的提高漆料的防锈耐水性能。

Claims (8)

  1. 一种环保型水性排污井盖专用漆，其特征在于，以重量份数计，包括15-25份的水性丙烯酸乳液、2-5份的水性醇酸树脂、20-30份的水、0.05-0.15份的消泡剂、0.2-0.5份的分散剂、0.3-0.8份的PH调节剂、0.5-1.0份的成膜助剂、1.3-3.8份的防闪锈助剂、0.2-0.5份的炭黑、1.5-3.5份的钛白粉、10-15份的重钙、8-16份的滑石粉、5-10份的云母粉、0.45-1.2份的增稠剂、2-5份防沉触变剂、0.05-0.15份的催干剂、0.1-0.3份的抗划伤助剂。
  2. 根据权利要求1所述的一种环保型水性排污井盖专用漆，其特征在于，以重量份数计，包括20份的水性丙烯酸乳液、3份的水性醇酸树脂、26份的水、0.05份的消泡剂、0.4份的分散剂、0.6份的PH调节剂、0.8份的成膜助剂、2份的防闪锈助剂、0.5份的炭黑、3份的钛白粉、15份的重钙、15份的滑石粉、10份的云母粉、0.45份的增稠剂、3份防沉触变剂、0.1份的催干剂、0.1份的抗划伤助剂。
  3. 根据权利要求1～2任意一项所述的一种环保型水性排污井盖专用漆，其特征在于，所述水性丙烯酸乳液动力粘度为800-2500mpa.s，固含量为44-46％，所述水性醇酸树脂采用格式管粘度计在25℃下测量粘度为100-160s，固含量为70-74％。
  4. 根据权利要求1～2任意一项所述的一种环保型水性排污井盖专用漆，其特征在于，所述消泡剂为ST2410消泡剂、NXZ消泡剂中的一种或两种。
  5. 根据权利要求1～2任意一项所述的一种环保型水性排污井盖专用漆，其特征在于，所述PH调节剂为二甲基乙醇胺、三乙胺中的一种或两种。
  6. 根据权利要求1～2任意一项所述的一种环保型水性排污井盖专用 漆，其特征在于，所述成膜助剂由以下重量份的组分组成：1-1.5份醇脂12，1份二丙二醇丁醚。
  7. 根据权利要求1～2任意一项所述的一种环保型水性排污井盖专用漆，其特征在于，所述防闪锈助剂由以下重量份的组分组成：1.5-3份亚硝酸钠含量为15％的水溶液，1份钼酸钠含量为10％的水溶液。
  8. 根据权利要求1所述的一种环保型水性排污井盖专用漆的制备方法，其特征在于，包括以下步骤：
    A、按环保型水性排污井盖专用漆的配比，称取各组分备用；
    B、取水总量的35-40％加入到容器中进行搅拌，在搅拌过程中加入PH调节剂总量的13％-17％，搅拌均匀后再依次加入消泡剂总量的40-60％、分散剂总量的40-60％、炭黑总量的40-60％、钛白粉总量的40-60％、滑石粉总量的40-60％、重钙总量的40-60％、云母粉总量的40-60％、防沉触变剂总量的40-60％，以1000-1500r/min的速率继续搅拌20-35min，将搅拌后得到的混合物研磨后得到前期浆料，备用；
    C、将丙烯酸乳液加入到容器内进行搅拌，在搅拌过程中依次加入水总量的15-20％、PH调节剂总量的13％-17％、防闪锈剂、成膜助剂，以400-600r/min速率搅拌25-35min，得到乳液清漆，备用；
    D、将水性醇酸树脂加入到容器内进行搅拌，取剩余的PH调节剂和剩余的催干剂加入至容器中，以300-500r/min速率搅拌5-10min，然后加入剩余的水，继续以500-600r/min速率搅拌15-20min，得到树脂清漆；
    E、将乳液清漆加入到容器内进行搅拌，在搅拌过程中加入树脂清漆，搅拌均匀后，加入前期浆料，以400-600r/min速率搅拌8-15min后依次加入剩余的消泡剂、分散剂、炭黑、钛白粉、滑石粉、重钙、云母粉、防沉 触变剂，再加入抗划伤助剂继续搅拌8-15min，然后将增稠剂分批次加入至混合漆料中进行搅拌，得到环保型水性排污井盖专用漆。
PCT/CN2022/133282 2022-06-29 2022-11-21 一种环保型水性排污井盖专用漆及其制备方法 WO2024001005A1 (zh)

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