WO2021077726A1 - Alkyd resin protective coating for water-dispersible steel structure, preparation method therefor and application thereof - Google Patents

Alkyd resin protective coating for water-dispersible steel structure, preparation method therefor and application thereof Download PDF

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Publication number
WO2021077726A1
WO2021077726A1 PCT/CN2020/090252 CN2020090252W WO2021077726A1 WO 2021077726 A1 WO2021077726 A1 WO 2021077726A1 CN 2020090252 W CN2020090252 W CN 2020090252W WO 2021077726 A1 WO2021077726 A1 WO 2021077726A1
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Prior art keywords
water
parts
alkyd resin
protective coating
rust
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PCT/CN2020/090252
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French (fr)
Chinese (zh)
Inventor
谢海
胡明
钱金均
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江苏冠军科技集团股份有限公司
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Publication of WO2021077726A1 publication Critical patent/WO2021077726A1/en

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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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • 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
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/327—Aluminium phosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

Definitions

  • the invention belongs to the field of surface engineering, and particularly relates to a water-dispersible alkyd resin protective coating for steel structures, and a preparation method and application thereof.
  • Steel structure has the characteristics of light weight, high strength, large span, large space, good seismic performance, convenient lifting construction and short construction time. It is widely used in modern construction industry, but steel structure is prone to corrosion problems in the application process.
  • the simplest and most effective method is to use anti-rust paint to protect the surface of the steel structure.
  • anti-rust paints for steel structures have appeared on the market.
  • the cost is different, and the performance is different, but in the final analysis, they are all solvent-based or water-based anti-corrosion paints for steel structures.
  • the components of the water-based anti-corrosion paint for steel structures are environmentally friendly and pollution-free, but it has the technical defects that it is inferior to oil-based paint in corrosion resistance and weather resistance.
  • the purpose of the present invention is to provide a water-dispersible alkyd resin protective coating for steel structures, and a preparation method and application thereof.
  • the water-dispersible alkyd resin protective coating for steel structure provided by the invention has good weather resistance and rust resistance.
  • the present invention provides the following technical solutions.
  • the present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass:
  • modified alkyd resin 20 ⁇ 35 parts of modified alkyd resin, 5 ⁇ 6 parts of weather-resistant and rust-proof composite materials, 2 ⁇ 4 parts of titanium dioxide, 0.01 ⁇ 0.03 parts of carbon black, 55 ⁇ 60 parts of physique filler, 5 ⁇ 10 parts of solid petroleum resin solution, 0.2 to 0.4 parts of dispersant, 0.8 to 1.2 parts of fumed silica, 0.1 to 0.2 parts of methyl ethyl ketoxime, 5 to 8 parts of water-based additives and 5 to 10 parts of water;
  • the weather-resistant and rust-resistant composite material includes the following components:
  • the mass ratio of the aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder is (0.3-3): (0.5-2): (0.2-3).
  • the mass ratio of the aluminum tripolyphosphate and the anti-mildew and preservative is 10: (1 to 1.6).
  • the dispersant is a phosphate compound.
  • the anti-mold and antiseptic agent includes polydroutine and/or isothiazolinones.
  • the solid content of the solid petroleum resin solution is 60-70%.
  • the present invention also provides a preparation method of the water-dispersible alkyd resin protective coating for steel structure according to the above technical scheme, which comprises the following steps:
  • the particle size of the ground material is less than 50 ⁇ m.
  • the viscosity is 200 ⁇ 10s.
  • the present invention also provides the water-dispersible alkyd resin protective coating for steel structure described in the above technical solution or the water-dispersible alkyd resin protective coating for steel structure prepared by the preparation method described in the above technical solution in the field of steel structure rust prevention Applications.
  • the present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass: 20 to 35 parts of modified alkyd resin, 5 to 6 parts of weather-resistant and rust-resistant composite material, 2 to 4 parts by mass Parts of titanium dioxide, 0.01 ⁇ 0.03 parts of carbon black, 55 ⁇ 60 parts of physical fillers, 5 ⁇ 10 parts of solid petroleum resin solution, 0.2 ⁇ 0.4 parts of dispersant, 0.8 ⁇ 1.2 parts of fumed silica, 0.1 ⁇ 0.2 parts of methyl ethyl ketoxime, 5-8 parts of water-based additives and 5-10 parts of water;
  • the weather-resistant and rust-resistant composite material includes the following components: aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative.
  • the aluminum, silicon, calcium and phosphorus rust-proof elements contained in the weather-resistant and rust-proof composite material used in the present invention When the protective coating is applied to the surface of the steel structure, the aluminum element will form a corrosion-resistant protective layer on the surface of the steel structure. , Calcium and magnesium elements form a dense oxide film on the surface of the steel structure, which effectively improves the weather resistance and rust resistance of the protective coating.
  • the invention acts on the steel structure substrate by adding weather-resistant and rust-proof composite materials with specific amounts of other components to form a dense weather-resistant and rust-proof layer on the surface of the steel structure, thereby improving the overall weather-proof and rust-proof performance of the steel structure.
  • the invention adopts a wide range of raw material sources and low cost, and is lower in cost, more energy-saving and more environmentally friendly than water-based steel structure anti-rust paint of the same quality.
  • the experimental results show that the paint film formed by the protective coating provided by the present invention has excellent weather resistance and rust resistance, and the performance is significantly better than the current standard.
  • the preparation process provided by the invention is simple and easy to understand, and is convenient for actual production and processing.
  • the present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass:
  • modified alkyd resin 20 ⁇ 35 parts of modified alkyd resin, 5 ⁇ 6 parts of weather-resistant and rust-proof composite materials, 2 ⁇ 4 parts of titanium dioxide, 0.01 ⁇ 0.03 parts of carbon black, 55 ⁇ 60 parts of physique filler, 5 ⁇ 10 parts of solid petroleum resin solution, 0.2 to 0.4 parts of dispersant, 0.8 to 1.2 parts of fumed silica, 0.1 to 0.2 parts of methyl ethyl ketoxime, 5 to 8 parts of water-based additives and 5 to 10 parts of water;
  • the weather-resistant and rust-resistant composite material includes the following components:
  • the present invention provides a water-dispersible alkyd resin protective coating for steel structures.
  • the water-dispersible alkyd resin protective coating for steel structures includes 20 to 35 parts by mass of modified alkyd resin, more preferably 30 to 30 parts by mass. 33 parts, more preferably 32 parts.
  • the modified alkyd resin is preferably prepared from soybean oil fatty acid.
  • the present invention does not specifically limit the preparation method of the modified alkyd resin, as long as the preparation method well known to those skilled in the art is adopted.
  • the source of the soybean oil fatty acid is not particularly limited, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structures includes 2 to 4 parts by mass of titanium dioxide, more preferably 3 to 3.5 parts.
  • the particle size of the titanium dioxide is preferably 15-50 nm.
  • the present invention does not specifically limit the specific source of the titanium dioxide, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structures includes 0.01 to 0.03 parts by mass of carbon black, more preferably 0.015 to 0.02 parts.
  • the particle size of the carbon black is preferably 100 to 200 nm.
  • the present invention does not specifically limit the specific source of the carbon black, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structures includes 55-60 parts by mass of physique filler, more preferably 57 parts.
  • the body filler preferably includes calcite powder and/or natural barium.
  • the particle size of the body filler is preferably 15 m. The present invention does not specifically limit the specific source of the body filler, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structures includes 5-10 parts by mass of the solid petroleum resin solution, more preferably 8-9 parts.
  • the solid petroleum resin in the solid petroleum resin solution is preferably a resinous substance obtained by polymerization reaction of a mixture containing olefins, diolefins, cycloolefins, styrene derivatives and heterocyclic compounds.
  • it is further preferably a C9 petroleum resin solution.
  • the present invention does not specifically limit the specific operation of the polymerization reaction, as long as the operation is well known to those skilled in the art.
  • the solid content of the solid petroleum resin solution is preferably 60-70%, more preferably 65%.
  • the present invention does not specifically limit the specific source of the solid petroleum resin solution, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structure includes 0.2-0.4 mass parts of dispersant.
  • the dispersant is preferably a phosphate compound, and more preferably Tech-5108 fatty alcohol phosphate.
  • the invention adopts a specific mass fraction of dispersant to have a strong affinity for the weather-resistant and rust-resistant composite material, and can be adsorbed on the particle surface of the fine weather-resistant and rust-resistant composite material to form an adsorption layer, which reduces the weather-resistant and rust-resistant composite material and modified alcohol
  • the interfacial tension of the acid resin shortens the grinding and dispersion time, and at the same time prevents the particles of the weather-resistant and rust-resistant composite material from flocculating.
  • the specific source of the dispersant is not particularly limited, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structures includes 0.8 to 1.2 parts by mass of fumed silica, more preferably 1 to 1.1 parts.
  • the fumed silica is preferably A75 fumed silica.
  • the particle size of the fumed silica is preferably 10-20 nm.
  • the water-dispersible alkyd resin protective coating for steel structure includes 0.1-0.2 parts by mass of methyl ethyl ketoxime, more preferably 0.1-0.15 parts.
  • the invention adopts specific mass parts of methyl ethyl ketoxime to prevent the appearance of orange peel on the alkyd resin protective coating layer for water-dispersible steel structures.
  • the specific source of the methyl ethyl ketoxime is not particularly limited, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structure includes 5-8 mass parts of water-based additives, and more preferably 6 parts.
  • the water-based auxiliary agent is preferably sodium triethanolamine.
  • the present invention does not specifically limit the specific source of the water-based auxiliary agent, and conventional commercial products in the field can be used.
  • the water-dispersible alkyd resin protective coating for steel structure includes 5-10 parts by mass of water, more preferably 7-8 parts.
  • the water-dispersible alkyd resin protective coating for steel structures includes 5-6 parts by mass of the weather-resistant and rust-proof composite material, and more preferably 6 parts.
  • the weather-resistant and rust-proof composite material includes the following components: aluminum tripolyphosphate, wollastonite powder, phosphorous silica powder and anti-mildew and preservative; the quality of the aluminum tripolyphosphate, wollastonite powder and phosphorous silica powder The ratio is preferably (0.3 ⁇ 3):(0.5 ⁇ 2):(0.2 ⁇ 3), more preferably (0.8 ⁇ 2):(1 ⁇ 1.5):(0.5 ⁇ 2.2), more preferably (1 ⁇ 1.5) : (1.2 to 1.3): (0.8 to 1.5); the mass ratio of the aluminum tripolyphosphate and the anti-mold and antiseptic agent is preferably 10: (1 to 1.6), more preferably 10: (1.2 to 1.4).
  • the mass percentage of P 2 O 5 in the aluminum tripolyphosphate is preferably ⁇ 70%, more preferably 70-80%, and the water content of the aluminum tripolyphosphate is preferably ⁇ 2.5%.
  • the anti-mold and antiseptic agent preferably includes polydroutine and/or isothiazolinones.
  • the specific source of the weather-resistant and rust-resistant composite material is not particularly limited, and conventional commercial products in the field can be used.
  • the present invention adopts the anti-rust elements such as aluminum, silicon, calcium and phosphorus contained in the weather-resistant and anti-rust composite material of specific mass parts.
  • the aluminum element When the protective coating is applied to the surface of the steel structure, the aluminum element will form corrosion protection on the surface of the steel structure At the same time, silicon, calcium and phosphorus elements form a dense oxide film on the surface of the steel structure, which effectively improves the weather resistance and rust resistance of the protective coating.
  • the present invention also provides a preparation method of the water-dispersible alkyd resin protective coating for steel structure according to the above technical scheme, which comprises the following steps:
  • aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and anti-corrosive agent are mixed to obtain a weather-resistant and rust-proof composite material.
  • the aluminum tripolyphosphate is preferably dried and then mixed with wollastonite powder, phosphorous silica powder and anti-mildew and preservative.
  • the present invention does not specifically limit the drying conditions, as long as the water content of the aluminum tripolyphosphate can be dried to ⁇ 2.5%.
  • the present invention does not specifically limit the specific operation of the drying, as long as the drying addition known to those skilled in the art is adopted.
  • the mixed components preferably further include water.
  • the mixing method is preferably to mix aluminum tripolyphosphate, wollastonite powder, phosphosilica powder and water, and then mix with an anti-mold and antiseptic.
  • the present invention does not have special restrictions on the specific mixing operation, as long as the aluminum tripolyphosphate, wollastonite powder, phosphosilica powder, water and anti-mold preservative can be uniformly mixed, specifically such as mechanical stirring.
  • the present invention preferably dry the materials obtained after mixing.
  • the drying method is preferably vacuum drying and baking in sequence.
  • the temperature of the baking is preferably 30°C, and the time is preferably 8 hours.
  • the present invention does not specifically limit the specific operation mode of the vacuum drying and baking, and the vacuum drying and baking well known to those skilled in the art can be used.
  • the present invention by sequentially vacuum drying and baking the materials obtained after mixing, the moisture in the materials obtained after mixing is completely removed.
  • the present invention preferably sequentially cools and grinds the dried mixture to obtain a weather-resistant and rust-proof composite material.
  • the present invention does not specifically limit the specific operation mode of the cooling and grinding, and the cooling and grinding well known to those skilled in the art can be used.
  • the particle size after grinding is not particularly limited, as long as it is ground to a fine powder.
  • the present invention mixes and grinds the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physical filler, and weather-resistant and rust-resistant composite material, and then adds solid petroleum resin solution and water-based additives After mixing with fumed silica, adjusting the viscosity, adding methyl ethyl ketoxime and mixing to obtain the water-dispersible alkyd resin protective coating for steel structure.
  • the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physique filler and weather-resistant and rust-resistant composite material are preferably first mixed in sequence to obtain the first mixture, and then mixed with solid petroleum resin solution and water-based additives After the second mixing with fumed silica, it is mixed with methyl ethyl ketoxime.
  • the first mixing is preferably carried out in a feeding kettle and a vertical sand mill in sequence.
  • the first mixing method is preferably mechanical stirring, and the speed of the mechanical stirring is preferably 800-1000 r/min; the present invention controls the time of the mechanical stirring There is no special limitation. It is enough to stir until there is no powder attached to the edge of the feeding kettle and there is no lumps in the kettle.
  • the first mixing method is preferably sand milling.
  • the present invention does not specifically limit the conditions of the sand milling, and it is sufficient that the particle size of the obtained first mixture material is less than 50 ⁇ m by sand milling.
  • the particle size range adopted by the invention can ensure the flatness and fullness of the alkyd resin protective coating film for water-dispersible steel structure.
  • the mechanical stirring and sanding there is no special limitation on the specific operation mode of the mechanical stirring and sanding, and the mechanical stirring and sanding well known to those skilled in the art can be used.
  • the second mixing is preferably carried out in a standard storage tank, the method of mixing is preferably mechanical stirring, the speed of the mechanical stirring is preferably 1000 r/min, and the time is preferably 15-20 min.
  • the present invention does not specifically limit the specific operation mode of the mechanical stirring, as long as the mechanical stirring well known to those skilled in the art can be used.
  • the present invention preferably places the obtained second mixture material in sequence and adjusts the viscosity.
  • the standing time is preferably 24h.
  • the present invention does not specifically limit the specific operation mode of the standing, and the standing is well known to those skilled in the art.
  • the viscosity adjusting agent is preferably water, and the adjusted viscosity is preferably 200 ⁇ 10s.
  • the viscosity range adopted by the invention can ensure good storage performance and construction performance of the coating.
  • the present invention does not specifically limit the specific operation mode for adjusting the viscosity, as long as the viscosity is adjusted well known to those skilled in the art.
  • the present invention preferably packs and stores the obtained water-dispersible alkyd resin protective coating for steel structures.
  • the present invention also provides the water-dispersible alkyd resin protective coating for steel structure described in the above technical solution or the water-dispersible alkyd resin protective coating for steel structure prepared by the preparation method described in the above technical solution in the field of steel structure rust prevention Applications.
  • the aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
  • the vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
  • the aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
  • the vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
  • the aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
  • the vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
  • the aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
  • the vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
  • the conventional alkyd resin protective coating in this field (a water-based alkyd anticorrosive and antirust primer Jiangsu Shuocheng New Material Technology Co., Ltd.) is a comparative example, its performance was tested, and the test results are shown in Table 1.
  • the water-dispersible alkyd resin protective coating for steel structure prepared by the present invention improves the compactness and rust resistance of the paint film, the performance is significantly better than the current standard, and the weather resistance and rust resistance are excellent.

Abstract

An alkyd resin protective coating for a water-dispersible steel structure, a preparation method therefor and an application thereof. The protective coating relates to the field of surface engineering. The alkyd resin protective coating for the water-dispersible steel structure comprises the following components: modified alkyd resin, a weather-resistant and rust-resistant composite material, titanium dioxide, carbon black, a body filler, a solid petroleum resin solution, a dispersant, gas phase silicon dioxide, methyl ethyl ketoxime, a water-based additive and water. The weather-resistant and rust-resistant composite material comprises the following components: aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and an anti-mildew preservative. The protective coating may form a dense and rust-proof paint film on the surface of the steel structure, and has an excellent weather resistance and rust-proof performance.

Description

一种水分散性钢结构用醇酸树脂防护涂料及其制备方法和应用Alkyd resin protective coating for water-dispersible steel structure, and preparation method and application thereof 技术领域Technical field
本发明属于表面工程领域，尤其涉及一种水分散性钢结构用醇酸树脂防护涂料及其制备方法和应用。The invention belongs to the field of surface engineering, and particularly relates to a water-dispersible alkyd resin protective coating for steel structures, and a preparation method and application thereof.
背景技术Background technique
钢结构具有自重轻、强度高、跨度大、空间大、抗震性能好、吊装施工方便和建设时间短的特点，在现代建筑业得到广泛应用，但钢结构在应用过程中容易存在锈蚀问题。Steel structure has the characteristics of light weight, high strength, large span, large space, good seismic performance, convenient lifting construction and short construction time. It is widely used in modern construction industry, but steel structure is prone to corrosion problems in the application process.
最简单有效的方法是采用防锈漆来保护钢结构表面。目前，市场上出现了大量各类品种的钢结构防锈漆。尽管各类防锈漆品种繁多、成本各异、性能不同，但归根结底，都属于溶剂型或水性的钢结构防锈漆。其中，水性钢结构防锈漆的组分环保无污染，但其自身存在耐腐蚀、耐候性能较油性漆差的技术缺陷。The simplest and most effective method is to use anti-rust paint to protect the surface of the steel structure. At present, a large number of various types of anti-rust paints for steel structures have appeared on the market. Although there are many kinds of anti-corrosion paints, the cost is different, and the performance is different, but in the final analysis, they are all solvent-based or water-based anti-corrosion paints for steel structures. Among them, the components of the water-based anti-corrosion paint for steel structures are environmentally friendly and pollution-free, but it has the technical defects that it is inferior to oil-based paint in corrosion resistance and weather resistance.
发明内容Summary of the invention
鉴于此，本发明的目的在于提供一种水分散性钢结构用醇酸树脂防护涂料及其制备方法和应用。本发明提供的水分散性钢结构用醇酸树脂防护涂料具有良好的耐候和防锈性能。In view of this, the purpose of the present invention is to provide a water-dispersible alkyd resin protective coating for steel structures, and a preparation method and application thereof. The water-dispersible alkyd resin protective coating for steel structure provided by the invention has good weather resistance and rust resistance.
为了实现上述技术问题，本发明提供了以下技术方案。In order to achieve the above technical problems, the present invention provides the following technical solutions.
本发明提供了一种水分散性钢结构用醇酸树脂防护涂料，包括以下质量份数的组分：The present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass:
20～35份改性醇酸树脂、5～6份耐候防锈复合材料、2～4份钛白粉、0.01～0.03份炭黑、55～60份体质填料、5～10份固体石油树脂溶液、0.2～0.4份分散剂、0.8～1.2份气相二氧化硅、0.1～0.2份甲乙酮肟、5～8份水性助剂和5～10份水；20～35 parts of modified alkyd resin, 5～6 parts of weather-resistant and rust-proof composite materials, 2～4 parts of titanium dioxide, 0.01～0.03 parts of carbon black, 55～60 parts of physique filler, 5～10 parts of solid petroleum resin solution, 0.2 to 0.4 parts of dispersant, 0.8 to 1.2 parts of fumed silica, 0.1 to 0.2 parts of methyl ethyl ketoxime, 5 to 8 parts of water-based additives and 5 to 10 parts of water;
所述耐候防锈复合材料包括以下组分：The weather-resistant and rust-resistant composite material includes the following components:
三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂。Aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative.
优选地，所述三聚磷酸铝、硅灰石粉和磷硅粉质量比为(0.3～3):(0.5～2):(0.2～3)。Preferably, the mass ratio of the aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder is (0.3-3): (0.5-2): (0.2-3).
优选地，所述三聚磷酸铝和防霉防腐剂的质量比为10:(1～1.6)。Preferably, the mass ratio of the aluminum tripolyphosphate and the anti-mildew and preservative is 10: (1 to 1.6).
优选地，所述分散剂为磷酸酯类化合物。Preferably, the dispersant is a phosphate compound.
优选地，所述防霉防腐剂包括多灵菌和/或异噻唑啉酮类。Preferably, the anti-mold and antiseptic agent includes polydroutine and/or isothiazolinones.
优选地，所述固体石油树脂溶液的固含量为60～70％。Preferably, the solid content of the solid petroleum resin solution is 60-70%.
本发明还提供了上述技术方案所述水分散性钢结构用醇酸树脂防护涂料的制备方法，包括以下步骤：The present invention also provides a preparation method of the water-dispersible alkyd resin protective coating for steel structure according to the above technical scheme, which comprises the following steps:
将三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂混合，得到耐候防锈复合材料；Mix aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative to obtain a weather-resistant and anti-rust composite material;
将改性醇酸树脂、水、分散剂、钛白粉、炭黑、体质填料和耐候防锈复合材料混合研磨后，再加入固体石油树脂溶液、水性助剂和气相二氧化硅混合，调节粘度后，加入甲乙酮肟混合，得到所述水分散性钢结构用醇酸树脂防护涂料。After mixing and grinding the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physical fillers and weather-resistant and rust-resistant composite materials, add solid petroleum resin solution, water-based additives and fumed silica, and adjust the viscosity , Adding methyl ethyl ketoxime and mixing to obtain the water-dispersible alkyd resin protective coating for steel structure.
优选地，所述研磨后物料的粒径＜50μm。Preferably, the particle size of the ground material is less than 50 μm.
优选地，所述粘度为200±10s。Preferably, the viscosity is 200±10s.
本发明还提供了上述技术方案所述水分散性钢结构用醇酸树脂防护涂料或上述技术方案所述制备方法制得的水分散性钢结构用醇酸树脂防护涂料在钢结构防锈领域中的应用。The present invention also provides the water-dispersible alkyd resin protective coating for steel structure described in the above technical solution or the water-dispersible alkyd resin protective coating for steel structure prepared by the preparation method described in the above technical solution in the field of steel structure rust prevention Applications.
本发明提供了一种水分散性钢结构用醇酸树脂防护涂料，包括以下质量份数的组分：20～35份改性醇酸树脂、5～6份耐候防锈复合材料、2～4份钛白粉、0.01～0.03份炭黑、55～60份体质填料、5～10份固体石油树脂溶液、0.2～0.4份分散剂、0.8～1.2份气相二氧化硅、0.1～0.2份甲乙酮肟、5～8份水性助剂和5～10份水；所述耐候防锈复合材料包括以下组分：三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂。本发明采用的耐候防锈复合材料中含有的铝、硅、钙和磷防锈元素，当防护涂料涂刷到钢结构表面时，铝元素会在钢结构表面形成耐蚀防护层，同时，硅、钙和镁元素在钢结构表面形成致密的氧化膜，有效提高防护涂料的耐候和防锈效果。本发明通过添加耐候防锈复合材料，并配合特定用量的其他组分，作用于钢结构底材，在钢结构表面形成致密的耐候防锈层，提高钢结构整体的耐候防锈性能。本发明采用的原料来源广泛且成本低廉，和同质量的水性钢结构防锈漆相比成本更低、更节约 能源，更加环保。实验结果表明，本发明提供的防护涂料形成的漆膜具有优异的耐候与防锈性能，性能明显优于现行标准。The present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass: 20 to 35 parts of modified alkyd resin, 5 to 6 parts of weather-resistant and rust-resistant composite material, 2 to 4 parts by mass Parts of titanium dioxide, 0.01～0.03 parts of carbon black, 55～60 parts of physical fillers, 5～10 parts of solid petroleum resin solution, 0.2～0.4 parts of dispersant, 0.8～1.2 parts of fumed silica, 0.1～0.2 parts of methyl ethyl ketoxime, 5-8 parts of water-based additives and 5-10 parts of water; the weather-resistant and rust-resistant composite material includes the following components: aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative. The aluminum, silicon, calcium and phosphorus rust-proof elements contained in the weather-resistant and rust-proof composite material used in the present invention. When the protective coating is applied to the surface of the steel structure, the aluminum element will form a corrosion-resistant protective layer on the surface of the steel structure. , Calcium and magnesium elements form a dense oxide film on the surface of the steel structure, which effectively improves the weather resistance and rust resistance of the protective coating. The invention acts on the steel structure substrate by adding weather-resistant and rust-proof composite materials with specific amounts of other components to form a dense weather-resistant and rust-proof layer on the surface of the steel structure, thereby improving the overall weather-proof and rust-proof performance of the steel structure. The invention adopts a wide range of raw material sources and low cost, and is lower in cost, more energy-saving and more environmentally friendly than water-based steel structure anti-rust paint of the same quality. The experimental results show that the paint film formed by the protective coating provided by the present invention has excellent weather resistance and rust resistance, and the performance is significantly better than the current standard.
且本发明提供的制备工艺操作简单易懂，便于实际生产加工。In addition, the preparation process provided by the invention is simple and easy to understand, and is convenient for actual production and processing.
具体实施方式Detailed ways
本发明提供了一种水分散性钢结构用醇酸树脂防护涂料，包括以下质量份数的组分：The present invention provides a water-dispersible alkyd resin protective coating for steel structures, which comprises the following components in parts by mass:
20～35份改性醇酸树脂、5～6份耐候防锈复合材料、2～4份钛白粉、0.01～0.03份炭黑、55～60份体质填料、5～10份固体石油树脂溶液、0.2～0.4份分散剂、0.8～1.2份气相二氧化硅、0.1～0.2份甲乙酮肟、5～8份水性助剂和5～10份水；20～35 parts of modified alkyd resin, 5～6 parts of weather-resistant and rust-proof composite materials, 2～4 parts of titanium dioxide, 0.01～0.03 parts of carbon black, 55～60 parts of physique filler, 5～10 parts of solid petroleum resin solution, 0.2 to 0.4 parts of dispersant, 0.8 to 1.2 parts of fumed silica, 0.1 to 0.2 parts of methyl ethyl ketoxime, 5 to 8 parts of water-based additives and 5 to 10 parts of water;
所述耐候防锈复合材料包括以下组分：The weather-resistant and rust-resistant composite material includes the following components:
三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂。Aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative.
本发明提供了一种水分散性钢结构用醇酸树脂防护涂料，所述水分散性钢结构用醇酸树脂防护涂料包括20～35质量份数的改性醇酸树脂，进一步优选为30～33份，更优选为32份。在本发明中，所述改性醇酸树脂优选由大豆油脂肪酸制备得到。本发明对所述改性醇酸树脂的制备方法没有特殊的限定，采用本领域技术人员熟知的制备方法即可。本发明对所述大豆油脂肪酸的来源没有特殊的限定，采用本领域常规市售产品即可。The present invention provides a water-dispersible alkyd resin protective coating for steel structures. The water-dispersible alkyd resin protective coating for steel structures includes 20 to 35 parts by mass of modified alkyd resin, more preferably 30 to 30 parts by mass. 33 parts, more preferably 32 parts. In the present invention, the modified alkyd resin is preferably prepared from soybean oil fatty acid. The present invention does not specifically limit the preparation method of the modified alkyd resin, as long as the preparation method well known to those skilled in the art is adopted. In the present invention, the source of the soybean oil fatty acid is not particularly limited, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括2～4质量份数的钛白粉，进一步优选为3～3.5份。在本发明中，所述钛白粉的粒径优选为15～50nm。本发明对所述钛白粉的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 2 to 4 parts by mass of titanium dioxide, more preferably 3 to 3.5 parts. In the present invention, the particle size of the titanium dioxide is preferably 15-50 nm. The present invention does not specifically limit the specific source of the titanium dioxide, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括0.01～0.03质量份数的炭黑，进一步优选为0.015～0.02份。在本发明中，所述炭黑的粒径优选为100～200nm。本发明对所述炭黑的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 0.01 to 0.03 parts by mass of carbon black, more preferably 0.015 to 0.02 parts. In the present invention, the particle size of the carbon black is preferably 100 to 200 nm. The present invention does not specifically limit the specific source of the carbon black, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括55～60质量份数的体质填料，进一步优选为57份。在本发明中，所述体质填料优选包括方解石粉和/或天然钡。在本发明中，所述体质 填料的粒径优选为15μm。本发明对所述体质填料的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 55-60 parts by mass of physique filler, more preferably 57 parts. In the present invention, the body filler preferably includes calcite powder and/or natural barium. In the present invention, the particle size of the body filler is preferably 15 m. The present invention does not specifically limit the specific source of the body filler, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括5～10质量份数的固体石油树脂溶液，进一步优选为8～9份。在本发明中，所述固体石油树脂溶液中的固体石油树脂优选由含有烯烃、二烯烃、环烯烃、苯乙烯衍生物和杂环化合物的混合物，经聚合反应得到的树脂状物质。在本发明实施例中进一步优选为C9石油树脂溶液。本发明对所述聚合反应的具体操作没有特殊的限定，采用本领域技术人员熟知的操作即可。在本发明中，所述固体石油树脂溶液的固含量优选为60～70％，进一步优选为65％。本发明对所述固体石油树脂溶液的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 5-10 parts by mass of the solid petroleum resin solution, more preferably 8-9 parts. In the present invention, the solid petroleum resin in the solid petroleum resin solution is preferably a resinous substance obtained by polymerization reaction of a mixture containing olefins, diolefins, cycloolefins, styrene derivatives and heterocyclic compounds. In the embodiment of the present invention, it is further preferably a C9 petroleum resin solution. The present invention does not specifically limit the specific operation of the polymerization reaction, as long as the operation is well known to those skilled in the art. In the present invention, the solid content of the solid petroleum resin solution is preferably 60-70%, more preferably 65%. The present invention does not specifically limit the specific source of the solid petroleum resin solution, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括0.2～0.4质量份数的分散剂。在本发明中，所述分散剂优选为磷酸酯类化合物，进一步优选为Tech-5108脂肪醇磷酸酯。本发明采用特定质量份数的分散剂对耐候防锈复合材料具有极强的亲和力，能够吸附在细小的耐候防锈复合材料的微粒表面，构成吸附层，降低耐候防锈复合材料与改性醇酸树脂的界面张力，缩短研磨分散时间，同时还能防止耐候防锈复合材料的粒子出现絮凝现象。本发明对所述分散剂的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structure includes 0.2-0.4 mass parts of dispersant. In the present invention, the dispersant is preferably a phosphate compound, and more preferably Tech-5108 fatty alcohol phosphate. The invention adopts a specific mass fraction of dispersant to have a strong affinity for the weather-resistant and rust-resistant composite material, and can be adsorbed on the particle surface of the fine weather-resistant and rust-resistant composite material to form an adsorption layer, which reduces the weather-resistant and rust-resistant composite material and modified alcohol The interfacial tension of the acid resin shortens the grinding and dispersion time, and at the same time prevents the particles of the weather-resistant and rust-resistant composite material from flocculating. In the present invention, the specific source of the dispersant is not particularly limited, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括0.8～1.2质量份数的气相二氧化硅，进一步优选为1～1.1份。在本发明中，所述气相二氧化硅优选为A75气相二氧化硅。在本发明中，所述气相二氧化硅的粒径优选为10～20nm。本发明采用特定质量份数的气相二氧化硅能够对水分散性钢结构用醇酸树脂防护涂料起到良好的增稠作用。本发明对所述气相二氧化硅的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 0.8 to 1.2 parts by mass of fumed silica, more preferably 1 to 1.1 parts. In the present invention, the fumed silica is preferably A75 fumed silica. In the present invention, the particle size of the fumed silica is preferably 10-20 nm. The use of specific mass parts of fumed silica in the present invention can play a good thickening effect on the alkyd resin protective coating for water-dispersible steel structures. The present invention does not specifically limit the specific source of the fumed silica, and conventional commercial products in this field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括0.1～0.2质量份数的甲乙酮肟，进一步优选为0.1～0.15份。本发明采用特定质量份数的甲乙酮肟能够对防止水分散性钢结构用醇酸树 脂防护涂料层出现橘皮现象。本发明对所述甲乙酮肟的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structure includes 0.1-0.2 parts by mass of methyl ethyl ketoxime, more preferably 0.1-0.15 parts. The invention adopts specific mass parts of methyl ethyl ketoxime to prevent the appearance of orange peel on the alkyd resin protective coating layer for water-dispersible steel structures. In the present invention, the specific source of the methyl ethyl ketoxime is not particularly limited, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括5～8质量份数的水性助剂，进一步优选为6份。在本发明中，所述水性助剂优选为三乙醇胺钠。本发明对所述水性助剂的具体来源没有特殊的限定，采用本领域常规市售产品即可。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structure includes 5-8 mass parts of water-based additives, and more preferably 6 parts. In the present invention, the water-based auxiliary agent is preferably sodium triethanolamine. The present invention does not specifically limit the specific source of the water-based auxiliary agent, and conventional commercial products in the field can be used.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括5～10质量份数的水，进一步优选为7～8份。Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structure includes 5-10 parts by mass of water, more preferably 7-8 parts.
以所述改性醇酸树脂的质量份数为基准，所述水分散性钢结构用醇酸树脂防护涂料包括5～6质量份数的耐候防锈复合材料，进一步优选为6份。在本发明中，所述耐候防锈复合材料包括以下组分：三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂；所述三聚磷酸铝、硅灰石粉和磷硅粉质量比优选为(0.3～3):(0.5～2):(0.2～3)，进一步优选为(0.8～2):(1～1.5):(0.5～2.2)，更优选为(1～1.5):(1.2～1.3):(0.8～1.5)；所述三聚磷酸铝和防霉防腐剂的质量比优选为10:(1～1.6)，更优选为10:(1.2～1.4)。在本发明中，所述三聚磷酸铝中P 2O 5的质量百分含量优选≥70％，进一步优选为70～80％，所述三聚磷酸铝的含水量优选＜2.5％。在本发明中，所述防霉防腐剂优选包括多灵菌和/或异噻唑啉酮类。本发明对所述耐候防锈复合材料的具体来源没有特殊的限定，采用本领域常规市售即可。本发明采用特定质量份数的耐候防锈复合材料中含有的铝、硅、钙和磷等防锈元素，当防护涂料涂刷到钢结构表面时，铝元素会在钢结构表面形成耐蚀防护层，同时，硅、钙和磷元素在钢结构表面形成致密的氧化膜，有效提高防护涂料的耐候和防锈效果。 Based on the mass parts of the modified alkyd resin, the water-dispersible alkyd resin protective coating for steel structures includes 5-6 parts by mass of the weather-resistant and rust-proof composite material, and more preferably 6 parts. In the present invention, the weather-resistant and rust-proof composite material includes the following components: aluminum tripolyphosphate, wollastonite powder, phosphorous silica powder and anti-mildew and preservative; the quality of the aluminum tripolyphosphate, wollastonite powder and phosphorous silica powder The ratio is preferably (0.3～3):(0.5～2):(0.2～3), more preferably (0.8～2):(1～1.5):(0.5～2.2), more preferably (1～1.5) : (1.2 to 1.3): (0.8 to 1.5); the mass ratio of the aluminum tripolyphosphate and the anti-mold and antiseptic agent is preferably 10: (1 to 1.6), more preferably 10: (1.2 to 1.4). In the present invention, the mass percentage of P 2 O 5 in the aluminum tripolyphosphate is preferably ≥70%, more preferably 70-80%, and the water content of the aluminum tripolyphosphate is preferably <2.5%. In the present invention, the anti-mold and antiseptic agent preferably includes polydroutine and/or isothiazolinones. In the present invention, the specific source of the weather-resistant and rust-resistant composite material is not particularly limited, and conventional commercial products in the field can be used. The present invention adopts the anti-rust elements such as aluminum, silicon, calcium and phosphorus contained in the weather-resistant and anti-rust composite material of specific mass parts. When the protective coating is applied to the surface of the steel structure, the aluminum element will form corrosion protection on the surface of the steel structure At the same time, silicon, calcium and phosphorus elements form a dense oxide film on the surface of the steel structure, which effectively improves the weather resistance and rust resistance of the protective coating.
本发明还提供了上述技术方案所述水分散性钢结构用醇酸树脂防护涂料的制备方法，包括以下步骤：The present invention also provides a preparation method of the water-dispersible alkyd resin protective coating for steel structure according to the above technical scheme, which comprises the following steps:
将三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂混合，得到耐候防锈复合材料；Mix aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative to obtain a weather-resistant and anti-rust composite material;
将改性醇酸树脂、水、分散剂、钛白粉、炭黑、体质填料和耐候防锈复合材料混合研磨后，再加入固体石油树脂溶液、水性助剂气相二氧化硅混合，调节粘度后，加入甲乙酮肟混合，得到所述水分散性钢结构用醇酸树脂防护 涂料。After mixing and grinding the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physical fillers, and weather-resistant and rust-resistant composite materials, add solid petroleum resin solution and water-based additives, fumed silica, and adjust the viscosity. Methyl ethyl ketoxime is added and mixed to obtain the water-dispersible alkyd resin protective coating for steel structure.
本发明将三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂混合，得到耐候防锈复合材料。In the present invention, aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and anti-corrosive agent are mixed to obtain a weather-resistant and rust-proof composite material.
本发明优选将三聚磷酸铝干燥后，再与硅灰石粉、磷硅粉和防霉防腐剂混合。本发明对所述干燥的条件没有特殊的限定，能够将三聚磷酸铝的含水量干燥至＜2.5％即可。本发明对所述干燥的具体操作没有特殊的限定，采用本领域技术人员熟知的干燥添加即可。In the present invention, the aluminum tripolyphosphate is preferably dried and then mixed with wollastonite powder, phosphorous silica powder and anti-mildew and preservative. The present invention does not specifically limit the drying conditions, as long as the water content of the aluminum tripolyphosphate can be dried to <2.5%. The present invention does not specifically limit the specific operation of the drying, as long as the drying addition known to those skilled in the art is adopted.
在本发明中，所述混合的组分优选还包括水。在本发明中，所述混合的方式优选为将三聚磷酸铝、硅灰石粉、磷硅粉和水混合后，再与防霉防腐剂混合。本发明对所述混合的具体操作没有特殊的限定，能够将三聚磷酸铝、硅灰石粉、磷硅粉、水和防霉防腐剂混合均匀即可，具体的如机械搅拌。In the present invention, the mixed components preferably further include water. In the present invention, the mixing method is preferably to mix aluminum tripolyphosphate, wollastonite powder, phosphosilica powder and water, and then mix with an anti-mold and antiseptic. The present invention does not have special restrictions on the specific mixing operation, as long as the aluminum tripolyphosphate, wollastonite powder, phosphosilica powder, water and anti-mold preservative can be uniformly mixed, specifically such as mechanical stirring.
所述混合完成后，本发明优选将混合后得到的物料进行干燥。在本发明中，所述干燥的方式优选依次为真空干燥和烘烤。在本发明中，所述烘烤的温度优选为30℃，时间优选为8h。本发明对所述真空干燥和烘烤的具体操作方式没有特殊的限定，采用本领域技术人员熟知的真空干燥和烘烤即可。本发明通过对混合后得到的物料依次进行真空干燥和烘烤，使混合后得到的物料中的水分彻底去除。After the mixing is completed, the present invention preferably dry the materials obtained after mixing. In the present invention, the drying method is preferably vacuum drying and baking in sequence. In the present invention, the temperature of the baking is preferably 30°C, and the time is preferably 8 hours. The present invention does not specifically limit the specific operation mode of the vacuum drying and baking, and the vacuum drying and baking well known to those skilled in the art can be used. In the present invention, by sequentially vacuum drying and baking the materials obtained after mixing, the moisture in the materials obtained after mixing is completely removed.
所述干燥完成后，本发明优选将干燥后的混合物依次进行冷却和研磨，得到耐候防锈复合材料。本发明对所述冷却和研磨的具体操作方式没有特殊的限定，采用本领域技术人员熟知的冷却和研磨即可。本发明对所述研磨后的粒径没有特殊的限定，研磨至细末粉状物即可。After the drying is completed, the present invention preferably sequentially cools and grinds the dried mixture to obtain a weather-resistant and rust-proof composite material. The present invention does not specifically limit the specific operation mode of the cooling and grinding, and the cooling and grinding well known to those skilled in the art can be used. In the present invention, the particle size after grinding is not particularly limited, as long as it is ground to a fine powder.
得到耐候防锈复合材料后，本发明将改性醇酸树脂、水、分散剂、钛白粉、炭黑、体质填料和耐候防锈复合材料混合研磨后，再加入固体石油树脂溶液、水性助剂和气相二氧化硅混合，调节粘度后，加入甲乙酮肟混合，得到所述水分散性钢结构用醇酸树脂防护涂料。After the weather-resistant and rust-resistant composite material is obtained, the present invention mixes and grinds the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physical filler, and weather-resistant and rust-resistant composite material, and then adds solid petroleum resin solution and water-based additives After mixing with fumed silica, adjusting the viscosity, adding methyl ethyl ketoxime and mixing to obtain the water-dispersible alkyd resin protective coating for steel structure.
本发明优选依次将改性醇酸树脂、水、分散剂、钛白粉、炭黑、体质填料和耐候防锈复合材料进行第一混合得到第一混合物料后，与固体石油树脂溶液、水性助剂和气相二氧化硅进行第二混合后，再与甲乙酮肟混合。In the present invention, the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physique filler and weather-resistant and rust-resistant composite material are preferably first mixed in sequence to obtain the first mixture, and then mixed with solid petroleum resin solution and water-based additives After the second mixing with fumed silica, it is mixed with methyl ethyl ketoxime.
在本发明中，所述第一混合优选依次在投料釜和立式砂磨机中进行。当 所述第一混合物料在投料釜中进行混合时，所述第一混合的方式优选为机械搅拌，所述机械搅拌的速率优选为800～1000r/min；本发明对所述机械搅拌的时间没有特殊的限定，搅拌至投料釜边沿无粉料附着，釜内无成块积团即可。当所述第一混合物料在投料釜中进行混合时，所述第一混合的方式优选为砂磨。本发明对所述砂磨的条件没有特殊的限定，砂磨至所得第一混合物料的粒径＜50μm即可。本发明采用的粒径范围能够保证水分散性钢结构用醇酸树脂防护涂料膜的平整度和丰满度。本发明对所述机械搅拌和砂磨的具体操作方式没有特殊的限定，采用本领域技术人员熟知的机械搅拌和砂磨即可。In the present invention, the first mixing is preferably carried out in a feeding kettle and a vertical sand mill in sequence. When the first mixture material is mixed in the feeding tank, the first mixing method is preferably mechanical stirring, and the speed of the mechanical stirring is preferably 800-1000 r/min; the present invention controls the time of the mechanical stirring There is no special limitation. It is enough to stir until there is no powder attached to the edge of the feeding kettle and there is no lumps in the kettle. When the first mixed material is mixed in the feeding kettle, the first mixing method is preferably sand milling. The present invention does not specifically limit the conditions of the sand milling, and it is sufficient that the particle size of the obtained first mixture material is less than 50 μm by sand milling. The particle size range adopted by the invention can ensure the flatness and fullness of the alkyd resin protective coating film for water-dispersible steel structure. In the present invention, there is no special limitation on the specific operation mode of the mechanical stirring and sanding, and the mechanical stirring and sanding well known to those skilled in the art can be used.
在本发明中，所述第二混合优选在标准储罐中进行，所述混合的方式优选为机械搅拌，所述机械搅拌的速率优选为1000r/min，时间优选为15～20min。本发明对所述机械搅拌的具体操作方式没有特殊的限定，采用本领域技术人员熟知的机械搅拌即可。In the present invention, the second mixing is preferably carried out in a standard storage tank, the method of mixing is preferably mechanical stirring, the speed of the mechanical stirring is preferably 1000 r/min, and the time is preferably 15-20 min. The present invention does not specifically limit the specific operation mode of the mechanical stirring, as long as the mechanical stirring well known to those skilled in the art can be used.
所述第二混合完成后，本发明优选将得到的第二混合物料依次进行静置和调节粘度。在本发明中，所述静置的时间优选为24h。本发明对所述静置的具体操作方式没有特殊的限定，采用本领域技术人员熟知的静置即可。在本发明中，所述粘度的调节剂优选为水，所述调节后粘度优选为200±10s。本发明采用的粘度范围能够保证涂料的存储性能和施工性能好。本发明对所述调节粘度的具体操作方式没有特殊的限定，采用本领域技术人员熟知的调节粘度即可。After the second mixing is completed, the present invention preferably places the obtained second mixture material in sequence and adjusts the viscosity. In the present invention, the standing time is preferably 24h. The present invention does not specifically limit the specific operation mode of the standing, and the standing is well known to those skilled in the art. In the present invention, the viscosity adjusting agent is preferably water, and the adjusted viscosity is preferably 200±10s. The viscosity range adopted by the invention can ensure good storage performance and construction performance of the coating. The present invention does not specifically limit the specific operation mode for adjusting the viscosity, as long as the viscosity is adjusted well known to those skilled in the art.
得到水分散性钢结构用醇酸树脂防护涂料后，本发明优选将得到的水分散性钢结构用醇酸树脂防护涂料进行包装储存。After obtaining the alkyd resin protective coating for water-dispersible steel structures, the present invention preferably packs and stores the obtained water-dispersible alkyd resin protective coating for steel structures.
本发明还提供了上述技术方案所述水分散性钢结构用醇酸树脂防护涂料或上述技术方案所述制备方法制得的水分散性钢结构用醇酸树脂防护涂料在钢结构防锈领域中的应用。The present invention also provides the water-dispersible alkyd resin protective coating for steel structure described in the above technical solution or the water-dispersible alkyd resin protective coating for steel structure prepared by the preparation method described in the above technical solution in the field of steel structure rust prevention Applications.
下面结合实施例对本发明提供的水分散性钢结构用醇酸树脂防护涂料及其制备方法和应用进行详细的说明，但是不能把它们理解为对本发明保护范围的限定。The water-dispersible alkyd resin protective coating for steel structure provided by the present invention and its preparation method and application will be described in detail below in conjunction with examples, but they should not be understood as limiting the protection scope of the present invention.
实施例1Example 1
将三聚磷酸铝预先干燥，直至三聚磷酸铝中含水率低于2.5％。The aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
按质量比称取以下组分原料，三聚磷酸铝：硅灰石粉：磷硅粉：多菌灵＝0.3:0.5:0.2:0.03。Weigh the following raw materials according to the mass ratio, aluminum tripolyphosphate: wollastonite powder: phosphorous silica powder: carbendazim = 0.3:0.5:0.2:0.03.
上述三聚磷酸铝、硅灰石粉和磷硅粉混合加入水中，进行分散处理；The above-mentioned aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder are mixed and added to water for dispersion treatment;
将多菌灵加入到分散后的混合物中，搅拌至均匀后进行真空干燥；Add carbendazim to the dispersed mixture, stir until it is uniform, and then vacuum dry;
将真空干燥后的混合物冷却至室温，研磨成细末粉状物，得到耐候防锈复合材料。The vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
按质量分数称取以下组分原料，改性醇酸树脂33份、耐候防锈复合材料5份、钛白粉3.5份(粒径为25nm)、炭黑0.02份(粒径为120nm)、方解石粉55份(粒径为15μm)、C9石油树脂溶液8份(固含量为65％)、Tech-5108脂肪醇磷酸酯0.2份、A75气相二氧化硅1.0份(粒径为15nm)、甲乙酮肟0.15份、三乙醇胺钠6份和水7份。Weigh the following ingredients according to the mass fraction: 33 parts of modified alkyd resin, 5 parts of weather-resistant and rust-proof composite material, 3.5 parts of titanium dioxide (particle size of 25nm), 0.02 part of carbon black (particle size of 120nm), calcite powder 55 parts (particle size of 15μm), 8 parts of C9 petroleum resin solution (solid content of 65%), 0.2 part of Tech-5108 fatty alcohol phosphate, 1.0 part of A75 fumed silica (particle diameter of 15nm), methyl ethyl ketoxime 0.15 Parts, 6 parts of sodium triethanolamine and 7 parts of water.
先在投料釜中加入改性醇酸树脂、水、Tech-5108脂肪醇磷酸酯，开动搅拌后，搅拌速度为800r/min，继续加入钛白粉、炭黑、方解石粉和耐候防锈复合材料，高速搅拌至均匀，搅拌速度为1000r/min，(锅边沿无粉料附着，锅内无成块积团)；First add modified alkyd resin, water, and Tech-5108 fatty alcohol phosphate into the feeding kettle. After starting the stirring, the stirring speed is 800r/min. Continue to add titanium dioxide, carbon black, calcite powder and weather-resistant and rust-resistant composite materials. Stir at high speed until uniform, the stirring speed is 1000r/min, (no powder adheres to the edge of the pot, no lumps in the pot);
将拉锅拖至投料釜下方，打开阀门将漆料放置拉锅中拖动到指定的砂磨机处，打开砂磨机将漆料吸入立式砂磨机进行砂磨，直至细度合格，细度要求小于50μm；Drag the pull pan to the bottom of the feeding kettle, open the valve and drag the paint in the pull pan to the designated sand mill. Turn on the sand mill and suck the paint into the vertical sand mill for sanding until the fineness is qualified. The fineness requirement is less than 50μm;
将研磨好的油漆打入对应的标准储罐，开动搅拌，搅拌速度为1000r/min，依次加入C9石油树脂溶液、三乙醇胺钠、A75气相二氧化硅搅拌均匀后，静置24小时，用水调节粘度至192s，合格后加入甲乙酮肟搅拌均匀，进行包装。对制得的水分散性钢结构用醇酸树脂防护涂料的性能进行测试，测试结果参见表1。Put the ground paint into the corresponding standard storage tank, start stirring at a stirring speed of 1000r/min, add C9 petroleum resin solution, sodium triethanolamine, and A75 fumed silica in sequence, and stir evenly, let stand for 24 hours, adjust with water When the viscosity reaches 192s, add methyl ethyl ketoxime after passing the test, stir evenly, and pack. The performance of the prepared water-dispersible alkyd resin protective coating for steel structure was tested, and the test results are shown in Table 1.
实施例2Example 2
将三聚磷酸铝预先干燥，直至三聚磷酸铝中含水率低于2.5％。The aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
按质量比称取以下组分原料，三聚磷酸铝：硅灰石粉：磷硅粉：多菌灵＝0.8:1:0.5:0.03。Weigh the following raw materials according to the mass ratio, aluminum tripolyphosphate: wollastonite powder: phosphorous silica powder: carbendazim = 0.8:1:0.5:0.03.
上述三聚磷酸铝、硅灰石粉和磷硅粉混合加入水中，进行分散处理；The above-mentioned aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder are mixed and added to water for dispersion treatment;
将多菌灵加入到分散后的混合物中，搅拌至均匀后进行真空干燥；Add carbendazim to the dispersed mixture, stir until it is uniform, and then vacuum dry;
将真空干燥后的混合物冷却至室温，研磨成细末粉状物，得到耐候防锈复合材料。The vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
按质量分数称取以下组分原料，改性醇酸树脂30份、耐候防锈复合材料6份、钛白粉3份(粒径为30nm)、炭黑0.015份(粒径为130nm)、方解石粉57份(粒径为13μm)、C9石油树脂溶液10份(固含量为65％)、Tech-5108脂肪醇磷酸酯0.25份、A75气相二氧化硅1.1份(粒径为15nm)、甲乙酮肟0.1份、三乙醇胺钠5份和水8份。Weigh the following ingredients according to the mass fraction: 30 parts of modified alkyd resin, 6 parts of weather-resistant and rust-proof composite material, 3 parts of titanium dioxide (particle size of 30nm), 0.015 part of carbon black (particle size of 130nm), calcite powder 57 parts (particle size of 13μm), 10 parts of C9 petroleum resin solution (solid content of 65%), 0.25 parts of Tech-5108 fatty alcohol phosphate, 1.1 parts of A75 fumed silica (particle size of 15nm), methyl ethyl ketoxime 0.1 Parts, 5 parts of sodium triethanolamine and 8 parts of water.
先在投料釜中加入改性醇酸树脂、水、Tech-5108脂肪醇磷酸酯，开动搅拌后，搅拌速度为800r/min，继续加入钛白粉、炭黑、方解石粉和耐候防锈复合材料，高速搅拌至均匀，搅拌速度为1000r/min，(锅边沿无粉料附着，锅内无成块积团)；First add modified alkyd resin, water, and Tech-5108 fatty alcohol phosphate into the feeding kettle. After starting the stirring, the stirring speed is 800r/min. Continue to add titanium dioxide, carbon black, calcite powder and weather-resistant and rust-resistant composite materials. Stir at high speed until uniform, the stirring speed is 1000r/min, (no powder adheres to the edge of the pot, no lumps in the pot);
将拉锅拖至投料釜下方，打开阀门将漆料放置拉锅中拖动到指定的砂磨机处，打开砂磨机将漆料吸入立式砂磨机进行砂磨，直至细度合格，细度要求小于50μm；Drag the pull pan to the bottom of the feeding kettle, open the valve and drag the paint in the pull pan to the designated sand mill. Turn on the sand mill and suck the paint into the vertical sand mill for sanding until the fineness is qualified. The fineness requirement is less than 50μm;
将研磨好的油漆打入对应的标准储罐，开动搅拌，搅拌速度为1000r/min，依次加入C9石油树脂溶液、三乙醇胺钠、A75气相二氧化硅搅拌均匀后，静置24小时，用水调节粘度至195s，合格后加入甲乙酮肟搅拌均匀，进行包装。对制得的水分散性钢结构用醇酸树脂防护涂料的性能进行测试，测试结果参见表1。Put the ground paint into the corresponding standard storage tank, start stirring at a stirring speed of 1000r/min, add C9 petroleum resin solution, sodium triethanolamine, and A75 fumed silica in sequence, and stir evenly, let stand for 24 hours, adjust with water When the viscosity reaches 195s, add methyl ethyl ketoxime after passing the test, stir evenly, and pack. The performance of the prepared water-dispersible alkyd resin protective coating for steel structure was tested, and the test results are shown in Table 1.
实施例3Example 3
将三聚磷酸铝预先干燥，直至三聚磷酸铝中含水率低于2.5％。The aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
按质量比称取以下组分原料，三聚磷酸铝：硅灰石粉：磷硅粉：多菌灵＝1.5:1:0.5:0.03。Weigh the following raw materials according to the mass ratio, aluminum tripolyphosphate: wollastonite powder: phosphorous silica powder: carbendazim = 1.5:1:0.5:0.03.
上述三聚磷酸铝、硅灰石粉和磷硅粉混合加入水中，进行分散处理；The above-mentioned aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder are mixed and added to water for dispersion treatment;
将多菌灵加入到分散后的混合物中，搅拌至均匀后进行真空干燥；Add carbendazim to the dispersed mixture, stir until it is uniform, and then vacuum dry;
将真空干燥后的混合物冷却至室温，研磨成细末粉状物，得到耐候防锈复合材料。The vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
按质量分数称取以下组分原料，改性醇酸树脂32份、耐候防锈复合材 料6份、钛白粉4份(粒径为18nm)、炭黑0.02份(粒径为150nm)、方解石粉60份(粒径为20μm)、C9石油树脂溶液9份(固含量为65％)、Tech-5108脂肪醇磷酸酯0.2份、A75气相二氧化硅1.2份(粒径为15nm)、甲乙酮肟0.2份、三乙醇胺钠8份和水10份。Weigh the following raw materials according to the mass fraction: 32 parts of modified alkyd resin, 6 parts of weather-resistant and rust-resistant composite material, 4 parts of titanium dioxide (particle size of 18nm), 0.02 part of carbon black (particle size of 150nm), calcite powder 60 parts (particle size of 20μm), 9 parts of C9 petroleum resin solution (solid content of 65%), 0.2 part of Tech-5108 fatty alcohol phosphate, 1.2 parts of A75 fumed silica (particle diameter of 15nm), 0.2 part of methyl ethyl ketoxime Parts, 8 parts of sodium triethanolamine and 10 parts of water.
先在投料釜中加入改性醇酸树脂、水、Tech-5108脂肪醇磷酸酯，开动搅拌后，搅拌速度为800r/min，继续加入钛白粉、炭黑、方解石粉和耐候防锈复合材料，高速搅拌至均匀，搅拌速度为1000r/min，(锅边沿无粉料附着，锅内无成块积团)；First add modified alkyd resin, water, and Tech-5108 fatty alcohol phosphate into the feeding kettle. After starting the stirring, the stirring speed is 800r/min. Continue to add titanium dioxide, carbon black, calcite powder and weather-resistant and rust-resistant composite materials. Stir at high speed until uniform, the stirring speed is 1000r/min, (no powder adheres to the edge of the pot, no lumps in the pot);
将拉锅拖至投料釜下方，打开阀门将漆料放置拉锅中拖动到指定的砂磨机处，打开砂磨机将漆料吸入立式砂磨机进行砂磨，直至细度合格，细度要求小于50μm；Drag the pull pan to the bottom of the feeding kettle, open the valve and drag the paint in the pull pan to the designated sand mill. Turn on the sand mill and suck the paint into the vertical sand mill for sanding until the fineness is qualified. The fineness requirement is less than 50μm;
将研磨好的油漆打入对应的标准储罐，开动搅拌，搅拌速度为1000r/min，依次加入C9石油树脂溶液、三乙醇胺钠、A75气相二氧化硅搅拌均匀后，静置24小时，用水调节粘度至194s，合格后加入甲乙酮肟搅拌均匀，进行包装。对制得的水分散性钢结构用醇酸树脂防护涂料的性能进行测试，测试结果参见表1。Put the ground paint into the corresponding standard storage tank, start stirring at a stirring speed of 1000r/min, add C9 petroleum resin solution, sodium triethanolamine, and A75 fumed silica in sequence, and stir evenly, let stand for 24 hours, adjust with water When the viscosity reaches 194s, add methyl ethyl ketoxime after passing the test, stir evenly, and pack. The performance of the prepared water-dispersible alkyd resin protective coating for steel structure was tested, and the test results are shown in Table 1.
实施例4Example 4
将三聚磷酸铝预先干燥，直至三聚磷酸铝中含水率低于2.5％。The aluminum tripolyphosphate is pre-dried until the water content in the aluminum tripolyphosphate is lower than 2.5%.
按质量比称取以下组分原料，三聚磷酸铝：硅灰石粉：磷硅粉：多菌灵＝2:1.5:0.8:0.03。Weigh the following raw materials according to the mass ratio, aluminum tripolyphosphate: wollastonite powder: phosphorous silica powder: carbendazim = 2:1.5:0.8:0.03.
上述三聚磷酸铝、硅灰石粉和磷硅粉混合加入水中，进行分散处理；The above-mentioned aluminum tripolyphosphate, wollastonite powder and phosphorous silicon powder are mixed and added to water for dispersion treatment;
将多菌灵加入到分散后的混合物中，搅拌至均匀后进行真空干燥；Add carbendazim to the dispersed mixture, stir until it is uniform, and then vacuum dry;
将真空干燥后的混合物冷却至室温，研磨成细末粉状物，得到耐候防锈复合材料。The vacuum-dried mixture is cooled to room temperature and ground into a fine powder to obtain a weather-resistant and rust-resistant composite material.
按质量分数称取以下组分原料，改性醇酸树脂32份、耐候防锈复合材料6份、钛白粉4份(粒径为15nm)、炭黑0.02份(粒径为100nm)、方解石粉60份(粒径为13μm)、C9石油树脂溶液9份(固含量为65％)、Tech-5108脂肪醇磷酸酯0.2份、A75气相二氧化硅1.2份(粒径为10nm)、甲乙酮肟0.2份、三乙醇胺钠8份和水10份。Weigh the following raw materials according to the mass fraction: 32 parts of modified alkyd resin, 6 parts of weather-resistant and rust-proof composite material, 4 parts of titanium dioxide (particle size of 15nm), 0.02 part of carbon black (particle size of 100nm), calcite powder 60 parts (particle size of 13μm), 9 parts of C9 petroleum resin solution (solid content of 65%), 0.2 part of Tech-5108 fatty alcohol phosphate, 1.2 parts of A75 fumed silica (particle diameter of 10nm), 0.2 parts of methyl ethyl ketoxime Parts, 8 parts of sodium triethanolamine and 10 parts of water.
先在投料釜中加入改性醇酸树脂、水、Tech-5108脂肪醇磷酸酯，开动搅拌后，搅拌速度为800r/min，继续加入钛白粉、炭黑、方解石粉和耐候防锈复合材料，高速搅拌至均匀，搅拌速度为1000r/min，(锅边沿无粉料附着，锅内无成块积团)；First add modified alkyd resin, water, and Tech-5108 fatty alcohol phosphate into the feeding kettle. After starting the stirring, the stirring speed is 800r/min. Continue to add titanium dioxide, carbon black, calcite powder and weather-resistant and rust-resistant composite materials. Stir at high speed until uniform, the stirring speed is 1000r/min, (no powder adheres to the edge of the pot, no lumps in the pot);
将拉锅拖至投料釜下方，打开阀门将漆料放置拉锅中拖动到指定的砂磨机处，打开砂磨机将漆料吸入立式砂磨机进行砂磨，直至细度合格，细度要求小于50μm；Drag the pull pan to the bottom of the feeding kettle, open the valve and drag the paint in the pull pan to the designated sand mill. Turn on the sand mill and suck the paint into the vertical sand mill for sanding until the fineness is qualified. The fineness requirement is less than 50μm;
将研磨好的油漆打入对应的标准储罐，开动搅拌，搅拌速度为1000r/min，依次加入C9石油树脂溶液、三乙醇胺钠、A75气相二氧化硅搅拌均匀后，静置24小时，用水调节粘度至200s，合格后加入甲乙酮肟搅拌均匀，进行包装。对制得的水分散性钢结构用醇酸树脂防护涂料的性能进行测试，测试结果参见表1。Put the ground paint into the corresponding standard storage tank, start stirring at a stirring speed of 1000r/min, add C9 petroleum resin solution, sodium triethanolamine, and A75 fumed silica in sequence, and stir evenly, let stand for 24 hours, adjust with water When the viscosity reaches 200s, add methyl ethyl ketoxime after passing the test, stir evenly, and pack. The performance of the prepared water-dispersible alkyd resin protective coating for steel structure was tested, and the test results are shown in Table 1.
对比例1Comparative example 1
为了说明本发明制得的水分散性钢结构用醇酸树脂防护涂料具有优异的耐候与防锈性能，以本领域常规醇酸树脂防护涂料(水性醇酸防腐防锈底漆江苏硕成新材料科技有限公司)为对比例，测试其性能，测试结果参见表1。In order to show that the water-dispersible alkyd resin protective coating for steel structure prepared by the present invention has excellent weather resistance and rust resistance, the conventional alkyd resin protective coating in this field (a water-based alkyd anticorrosive and antirust primer Jiangsu Shuocheng New Material Technology Co., Ltd.) is a comparative example, its performance was tested, and the test results are shown in Table 1.
表1实施例1～4及对比例1制得的水分散性钢结构用醇酸树脂防护涂料的性能测试结果Table 1 Performance test results of water-dispersible alkyd resin protective coatings for steel structure prepared in Examples 1 to 4 and Comparative Example 1
Figure PCTCN2020090252-appb-000001
Figure PCTCN2020090252-appb-000001
Figure PCTCN2020090252-appb-000002
Figure PCTCN2020090252-appb-000002
由表1可知，本发明制得的水分散性钢结构用醇酸树脂防护涂料，提高了漆膜致密性和防锈性，性能明显优于现行标准，耐候与防锈性能优异。It can be seen from Table 1 that the water-dispersible alkyd resin protective coating for steel structure prepared by the present invention improves the compactness and rust resistance of the paint film, the performance is significantly better than the current standard, and the weather resistance and rust resistance are excellent.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

Claims (10)

  1. 一种水分散性钢结构用醇酸树脂防护涂料，其特征在于，包括以下质量份数的组分：A water-dispersible alkyd resin protective coating for steel structures, which is characterized in that it comprises the following components in parts by mass:
    20～35份改性醇酸树脂、5～6份耐候防锈复合材料、2～4份钛白粉、0.01～0.03份炭黑、55～60份体质填料、5～10份固体石油树脂溶液、0.2～0.4份分散剂、0.8～1.2份气相二氧化硅、0.1～0.2份甲乙酮肟、5～8份水性助剂和5～10份水；20～35 parts of modified alkyd resin, 5～6 parts of weather-resistant and rust-proof composite materials, 2～4 parts of titanium dioxide, 0.01～0.03 parts of carbon black, 55～60 parts of physique filler, 5～10 parts of solid petroleum resin solution, 0.2 to 0.4 parts of dispersant, 0.8 to 1.2 parts of fumed silica, 0.1 to 0.2 parts of methyl ethyl ketoxime, 5 to 8 parts of water-based additives and 5 to 10 parts of water;
    所述耐候防锈复合材料包括以下组分：The weather-resistant and rust-resistant composite material includes the following components:
    三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂。Aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative.
  2. 根据权利要求1所述的水分散性钢结构用醇酸树脂防护涂料，其特征在于，所述三聚磷酸铝、硅灰石粉和磷硅粉质量比为(0.3～3):(0.5～2):(0.2～3)。The water-dispersible alkyd resin protective coating for steel structures according to claim 1, wherein the mass ratio of aluminum tripolyphosphate, wollastonite powder and phosphorous silica powder is (0.3～3):(0.5～2 ): (0.2～3).
  3. 根据权利要求1所述的水分散性钢结构用醇酸树脂防护涂料，其特征在于，所述三聚磷酸铝和防霉防腐剂的质量比为10:(1～1.6)。The water-dispersible alkyd resin protective coating for steel structures according to claim 1, wherein the mass ratio of the aluminum tripolyphosphate and the anti-mildew and preservative is 10: (1 to 1.6).
  4. 根据权利要求1所述的水分散性钢结构用醇酸树脂防护涂料，其特征在于，所述分散剂为磷酸酯类化合物。The water-dispersible alkyd resin protective coating for steel structures according to claim 1, wherein the dispersant is a phosphate compound.
  5. 根据权利要求1所述的水分散性钢结构用醇酸树脂防护涂料，其特征在于，所述防霉防腐剂包括多灵菌和/或异噻唑啉酮类。The water-dispersible alkyd resin protective coating for steel structures according to claim 1, wherein the anti-mold and antiseptic agent includes polydrmidone and/or isothiazolinones.
  6. 根据权利要求1所述的水分散性钢结构用醇酸树脂防护涂料，其特征在于，所述固体石油树脂溶液的固含量为60～70％。The water-dispersible alkyd resin protective coating for steel structure according to claim 1, wherein the solid content of the solid petroleum resin solution is 60-70%.
  7. 权利要求1～6任一项所述水分散性钢结构用醇酸树脂防护涂料的制备方法，其特征在于，包括以下步骤：The preparation method of water-dispersible alkyd resin protective coating for steel structure according to any one of claims 1 to 6, characterized in that it comprises the following steps:
    将三聚磷酸铝、硅灰石粉、磷硅粉和防霉防腐剂混合，得到耐候防锈复合材料；Mix aluminum tripolyphosphate, wollastonite powder, phosphorous silicon powder and anti-mildew and preservative to obtain a weather-resistant and anti-rust composite material;
    将改性醇酸树脂、水、分散剂、钛白粉、炭黑、体质填料和耐候防锈复合材料混合研磨后，再加入固体石油树脂溶液、水性助剂和气相二氧化硅混合，调节粘度后，加入甲乙酮肟混合，得到所述水分散性钢结构用醇酸树脂防护涂料。After mixing and grinding the modified alkyd resin, water, dispersant, titanium dioxide, carbon black, physical fillers and weather-resistant and rust-resistant composite materials, add solid petroleum resin solution, water-based additives and fumed silica, and adjust the viscosity , Adding methyl ethyl ketoxime and mixing to obtain the water-dispersible alkyd resin protective coating for steel structure.
  8. 根据权利要求7所述的制备方法，其特征在于，所述研磨后物料的粒径＜50μm。The preparation method according to claim 7, wherein the particle size of the ground material is less than 50 μm.
  9. 根据权利要求7所述的制备方法，其特征在于，所述粘度为200±10s。The preparation method according to claim 7, wherein the viscosity is 200±10s.
  10. 权利要求1～6任一项所述水分散性钢结构用醇酸树脂防护涂料或权利要求7～9任一项所述制备方法制得的水分散性钢结构用醇酸树脂防护涂料在钢结构防锈领域中的应用。The water-dispersible alkyd resin protective coating for steel structure according to any one of claims 1 to 6 or the water-dispersible alkyd resin protective coating for steel structure prepared by the preparation method according to any one of claims 7-9. Application in the field of structural rust prevention.
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