CN111961400A - Preparation method of continuous high-temperature-resistant paint and paint - Google Patents
Preparation method of continuous high-temperature-resistant paint and paint Download PDFInfo
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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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
- 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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
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- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a preparation method of a continuous high-temperature-resistant paint and the paint, and relates to the technical field of chemical coatings, wherein the preparation method of the continuous high-temperature-resistant paint comprises the following steps: in the preparation process of the paint, a proper amount of titanium dioxide is added in a proper step, and a proper amount of unsaturated polyester resin is added in a proper step, so that the continuous high-temperature resistance of the paint after being coated on the surface of a high-temperature substrate is improved. The invention solves the problem that the paint is difficult to resist high temperature continuously.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a preparation method of a continuous high-temperature-resistant paint and the paint.
Background
As is well known, in the industries of aviation, aerospace, energy, chemical engineering, metallurgy, electric power, machinery, light industry and the like, the used equipment is high in design and manufacturing cost, and the equipment is required to be ensured to be used for a long time, so that the corrosion resistance is required to be achieved. For example, exhaust pipes, mufflers, and engines of various vehicles are required to have corrosion resistance. Further, for example, in petroleum cracking equipment, high-temperature steam pipelines, etc., it is also required to have corrosion resistance. Ordinary equipment works at normal temperature or higher temperature, and ordinary paint can reach the performance, but, above-mentioned equipment is basically in the operation of high temperature, therefore, how to guarantee the continuation corrosivity of equipment under high temperature corrosive environment is a difficult task.
Among various high-temperature corrosion-prevention techniques, paint is used for protection, and is most widely used because of its simplicity and operability that are favored by various parties. Under the condition of high-temperature environment, the surface of the material and various environment media generate chemical reaction or electrochemical reaction between interfaces to form a reaction substance on the surface of the material and damage the structure and the performance of the material, but the equipment cannot perform paint spraying operation at any time, so that the paint is required to have continuous high-temperature resistance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of a continuous high-temperature-resistant paint and the paint, and solves the problem that the paint is difficult to continuously resist high temperature.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect of embodiments of the present invention, there is provided a method for preparing a continuous high temperature-resistant paint, the method comprising:
100 parts by mass of water is taken and put into a generator, 1.8-2.2 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, and the stirring is carried out for 25 seconds;
adding 32-35 parts of titanium dioxide, 0.5 part of bridging agent, 0.55-0.85 part of isopropanol and 8-9 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, and stirring for 65-78 seconds;
cooling to 40-50 ℃, adding 1.8-2 parts of toughening agent into the generator, and stirring for 90-110 seconds;
cooling to 22-24 ℃, adding 3.2-3.6 parts of unsaturated polyester resin into the generator, and stirring for 200-350 seconds;
adding 0.70-0.80 part of borax into the generator, and stirring for 380-450 seconds;
adding 0.35-0.4 part of copolymer of alpha-olefin and maleic anhydride to the generator, and stirring for 280-350 seconds;
adding 4-6 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 1-3: 3-6, stirring for 200-300 seconds;
adding 3-5 parts of antioxidant into the generator, and stirring for 450-600 seconds;
adjusting the pH value of the mixture in the generator to 7.5-8, adding 15-20 parts of non-ionic waterborne polyurethane and 1.5-3 parts of surfactant into the generator, stirring for 1000-1500 seconds, and taking out the prepared continuous high-temperature-resistant paint.
Preferably, the toughening agent is formed by mixing high rubber powder and chlorinated polyethylene, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 1-3: 3-6.
Preferably, the rotating speed of the stirring blade in the preparation process is 1500-2000 rpm.
Preferably, the granularity of the borax is 40-80 meshes.
In a second aspect of the embodiments of the present invention, there is provided a continuous high temperature resistant paint prepared by the preparation method of the first aspect.
Advantageous effects
The invention provides a preparation method of a continuous high-temperature-resistant paint. Compared with the prior art, the method has the following beneficial effects:
according to the preparation method of the continuous high-temperature-resistant paint, the unsaturated polyester resin and the titanium dioxide are added, so that the paint has good continuous high-temperature-resistant performance, can keep good bonding performance and corrosion resistance at high temperature, and is long in service life. And the borax has good flame retardant property, can be directly sprayed on the surface of a high-temperature matrix at the temperature of 400 plus materials and 1000 ℃, and the coating can be quickly adhered to the surface of the high-temperature matrix while the water is volatilized, so that the formed high-temperature resistant protective coating is uniform and compact, the thermal shock resistance is good, and the protection effect is remarkable.
Drawings
FIG. 1 is a flow chart of a method for preparing a paint having a high temperature durability according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a method for preparing continuous high-temperature-resistant paint. The preparation method comprises the following steps.
In step S101, 100 parts by mass of water is taken and placed in a generator, 1.8-2.2 parts by mass of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, and the stirring is carried out for 25 seconds;
in step S102, adding 32-35 parts of titanium dioxide, 0.5 part of bridging agent, 0.55-0.85 part of isopropanol and 8-9 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, and stirring for 65-78 seconds;
in step S103, cooling to 40-50 ℃, adding 1.8-2 parts of toughening agent into the generator, and stirring for 90-110 seconds;
in step S104, cooling to 22-24 ℃, adding 3.2-3.6 parts of unsaturated polyester resin into the generator, and stirring for 200-350 seconds;
in step S105, adding 0.70-0.80 parts of borax into the generator, and stirring for 380-450 seconds;
in step S106, 0.35-0.4 parts of a copolymer of an α -olefin and maleic anhydride is added to the generator and stirred for 280-350 seconds;
in step S107, 4 to 6 parts of a mica and graphite mixture is added to the generator, wherein the weight ratio of mica to graphite is 1 to 3: 3-6, stirring for 200-300 seconds;
in step S108, adding 3-5 parts of antioxidant into the generator, and stirring for 450-600 seconds;
in step S109, the pH value of the mixture in the generator is adjusted to 7.5-8, 15-20 parts of non-ionic waterborne polyurethane and 1.5-3 parts of surfactant are added into the generator, and the mixture is stirred for 1000-1500 seconds.
In step S110, the prepared continuous high temperature resistant paint is taken out.
It is worth mentioning that the surfactant is sodium dodecylbenzene sulfonate.
In particular, please refer to the following examples.
Example 1
The embodiment provides a preparation method of a continuous high-temperature-resistant paint, which comprises the following steps:
100 parts by mass of water is taken and put into a generator, 1.8 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, the stirring is carried out for 25 seconds, and the rotating speed of a paddle is 1500 rpm;
adding 32 parts of titanium dioxide, 0.5 part of bridging agent, 0.55 part of isopropanol and 8 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, stirring for 65-78 seconds, and rotating speed of a blade being 1600 rpm;
cooling to 40-50 ℃, adding 1.8 parts by weight of high rubber powder and chlorinated polyethylene into the generator, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 1: 3, stirring the toughening agent for 90-110 seconds, wherein the rotating speed of a paddle is 1650 rpm;
cooling to 22-24 ℃, adding 3.2 parts of unsaturated polyester resin into the generator, stirring for 200-350 seconds, and controlling the rotating speed of the blades to 1700 rpm;
adding 0.70 part of borax with the granularity of 40-80 meshes into the generator, stirring for 380-450 seconds, and enabling the rotating speed of a blade to be 1750 revolutions per minute;
adding 0.35 part of copolymer of alpha-olefin and maleic anhydride into the generator, stirring for 280 and 350 seconds, and controlling the rotating speed of a blade to be 1800 rpm;
adding 4-6 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 1: 3, stirring for 200 seconds and 300 seconds, wherein the rotating speed of the paddle is 1800 rpm;
adding 3 parts of antioxidant into the generator, stirring for 450-600 seconds, wherein the rotating speed of a blade is 1820 rpm;
and adjusting the pH value of the mixture in the generator to 7.5-8, adding 15 parts of non-ionic waterborne polyurethane and 1.5 parts of surfactant into the generator, stirring for 1000-1500 seconds at a blade rotation speed of 1850 rpm, and taking out the prepared continuous high-temperature-resistant paint.
Example 2
The embodiment provides a preparation method of a continuous high-temperature-resistant paint, which comprises the following steps:
100 parts by mass of water is taken and put into a generator, 2.2 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, the stirring is carried out for 25 seconds, and the rotating speed of a paddle is 1600 rpm;
adding 35 parts of titanium dioxide, 0.5 part of bridging agent, 0.85 part of isopropanol and 8-9 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, stirring for 65-78 seconds, and rotating speed of a blade is 1950 r/min;
cooling to 40-50 ℃, adding 2 parts of high rubber powder and chlorinated polyethylene into the generator, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 3: 6, stirring the toughening agent for 90 to 110 seconds, wherein the rotating speed of a paddle is 1850 revolutions per minute;
cooling to 22-24 ℃, adding 3.6 parts of unsaturated polyester resin into the generator, stirring for 200-350 seconds, and controlling the rotating speed of the blades to be 1890 rpm;
adding 0.80 part of borax with the granularity of 40-80 meshes into the generator, stirring for 380-450 seconds, wherein the rotating speed of a blade is 1920 revolutions per minute;
adding 0.4 part of copolymer of alpha-olefin and maleic anhydride into the generator, stirring for 280-350 seconds, and controlling the rotating speed of a blade to be 1920 rpm;
adding 6 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 3: stirring for 200 and 300 seconds, wherein the rotating speed of a paddle is 1950 rpm;
adding 5 parts of antioxidant into the generator, stirring for 450-600 seconds, wherein the rotating speed of a paddle is 1970 rpm;
and adjusting the pH value of the mixture in the generator to 7.5-8, adding 20 parts of nonionic waterborne polyurethane and 3 parts of surfactant into the generator, stirring for 1000 and 1500 seconds at the rotating speed of a blade of 2000 rpm, and taking out the prepared continuous high-temperature-resistant paint.
Example 3
The embodiment provides a preparation method of a continuous high-temperature-resistant paint, which comprises the following steps:
100 parts by mass of water is taken and put into a generator, 1.9 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, the stirring is carried out for 25 seconds, and the rotating speed of a paddle is 1500 rpm;
adding 32 parts of titanium dioxide, 0.5 part of bridging agent, 0.55-0.85 part of isopropanol and 8.5 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, stirring for 65-78 seconds, and rotating speed of a blade to 1600 rpm;
cooling to 40-50 ℃, adding 2 parts of high rubber powder and chlorinated polyethylene into the generator, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 3: 3, stirring the toughening agent for 90-110 seconds, wherein the rotating speed of a paddle is 1650 rpm;
cooling to 22-24 ℃, adding 3.4 parts of unsaturated polyester resin into the generator, stirring for 200 and 350 seconds, and controlling the rotating speed of the blades to 1750 rpm;
adding 0.75 part of borax with the granularity of 40-80 meshes into the generator, stirring for 380-450 seconds, and rotating the blades at 1750 revolutions per minute;
adding 0.35 part of copolymer of alpha-olefin and maleic anhydride into the generator, stirring for 280 and 350 seconds, wherein the rotating speed of a paddle is 1950 rpm;
adding 5 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 2: 3, stirring for 200 seconds and 300 seconds, wherein the rotating speed of the paddle is 1920 revolutions per minute;
adding 5 parts of antioxidant into the generator, stirring for 450-600 seconds, wherein the rotating speed of a paddle is 1950 r/min;
and adjusting the pH value of the mixture in the generator to 7.5-8, adding 20 parts of nonionic waterborne polyurethane and 3 parts of surfactant into the generator, stirring for 1000 and 1500 seconds at the rotating speed of a blade of 2000 rpm, and taking out the prepared continuous high-temperature-resistant paint.
Example 4
The embodiment provides a preparation method of a continuous high-temperature-resistant paint, which comprises the following steps:
100 parts by mass of water is taken and put into a generator, 2.0 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, the stirring is carried out for 25 seconds, and the rotating speed of a paddle is 1500 rpm;
adding 33 parts of titanium dioxide, 0.5 part of bridging agent, 0.7 part of isopropanol and 8 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, stirring for 65-78 seconds, wherein the rotating speed of a blade is 1700 revolutions per minute;
cooling to 40-50 ℃, adding 2 parts of high rubber powder and chlorinated polyethylene into the generator, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 1.5: 5, stirring the toughening agent for 90-110 seconds, wherein the rotating speed of a blade is 1600 revolutions per minute;
cooling to 22-24 ℃, adding 3.5 parts of unsaturated polyester resin into the generator, stirring for 200-350 seconds, and controlling the rotating speed of the blades to 1700 rpm;
adding 0.77 part of borax with the granularity of 40-80 meshes into the generator, stirring for 380-450 seconds, wherein the rotating speed of a paddle is 1850 rpm;
adding 0.37 part of copolymer of alpha-olefin and maleic anhydride into the generator, stirring for 280-350 seconds, wherein the rotating speed of a paddle is 1850 rpm;
adding 4 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 3: 5, stirring for 200 and 300 seconds, wherein the rotating speed of a paddle is 1950 rpm;
adding 4.5 parts of antioxidant into the generator, stirring for 450-600 seconds, wherein the rotating speed of a paddle is 1950 rpm;
and adjusting the pH value of the mixture in the generator to 7.5-8, adding 16 parts of nonionic waterborne polyurethane and 2.5 parts of surfactant into the generator, stirring for 1000-1500 seconds at a blade rotating speed of 2000 rpm, and taking out the prepared continuous high-temperature-resistant paint.
Example 5
The embodiment provides a preparation method of a continuous high-temperature-resistant paint, which comprises the following steps:
100 parts by mass of water is taken and put into a generator, 2.1 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, the stirring is carried out for 25 seconds, and the rotating speed of a paddle is 1500 rpm;
adding 33.5 parts of titanium dioxide, 0.5 part of bridging agent, 0.85 part of isopropanol and 9 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, stirring for 65-78 seconds, and rotating speed of a blade to 1600 revolutions per minute;
cooling to 40-50 ℃, adding 1.85 parts of high rubber powder and chlorinated polyethylene into the generator, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 2.5: 6, stirring the toughening agent for 90 to 110 seconds, wherein the rotating speed of a blade is 1800 rpm;
cooling to 22-24 ℃, adding 3.6 parts of unsaturated polyester resin into the generator, stirring for 200-350 seconds, and controlling the rotating speed of the blades to be 1800 rpm;
adding 0.78 part of borax with the granularity of 40-80 meshes into the generator, stirring for 380-450 seconds, wherein the rotating speed of a paddle is 1850 rpm;
adding 0.4 part of copolymer of alpha-olefin and maleic anhydride into the generator, stirring for 280-350 seconds, wherein the rotating speed of a paddle is 1850 rpm;
adding 6 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 2: 4.5, stirring for 200 seconds and 300 seconds, wherein the rotating speed of the paddle is 1900 rpm;
adding 5 parts of antioxidant into the generator, stirring for 450-600 seconds, wherein the rotating speed of a paddle is 1900 rpm;
and adjusting the pH value of the mixture in the generator to 7.5-8, adding 19 parts of nonionic waterborne polyurethane and 2.8 parts of surfactant into the generator, stirring for 1000-1500 seconds at a blade rotating speed of 2000 rpm, and taking out the prepared continuous high-temperature-resistant paint.
According to the preparation method of the continuous high-temperature-resistant paint, after the pH value in the generator is adjusted, the nonionic waterborne polyurethane and the surfactant are added, and the sodium hydroxide is added for multiple times, so that the pH value in the generator in the preparation process is ensured.
According to the continuous high-temperature-resistant paint provided by the disclosure, the unsaturated polyester resin and the titanium dioxide are added, so that the paint has good continuous high-temperature-resistant performance, can keep good bonding performance and corrosion resistance at high temperature, and is long in service life. And the borax has good flame retardant property, can be directly sprayed on the surface of a high-temperature matrix at the temperature of 400 plus materials and 1000 ℃, and the coating can be quickly adhered to the surface of the high-temperature matrix while the water is volatilized, so that the formed high-temperature resistant protective coating is uniform and compact, the thermal shock resistance is good, and the protection effect is remarkable.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A preparation method of a continuous high-temperature-resistant paint is characterized by comprising the following steps:
100 parts by mass of water is taken and put into a generator, 1.8-2.2 parts of sodium hydroxide is added into the generator, the mixture is continuously stirred and heated to 20-25 ℃, and the stirring is carried out for 25 seconds;
adding 32-35 parts of titanium dioxide, 0.5 part of bridging agent, 0.55-0.85 part of isopropanol and 8-9 parts of polyvinyl alcohol into the generator, continuously stirring and heating to 90-110 ℃, and stirring for 65-78 seconds;
cooling to 40-50 ℃, adding 1.8-2 parts of toughening agent into the generator, and stirring for 90-110 seconds;
cooling to 22-24 ℃, adding 3.2-3.6 parts of unsaturated polyester resin into the generator, and stirring for 200-350 seconds;
adding 0.70-0.80 part of borax into the generator, and stirring for 380-450 seconds;
adding 0.35-0.4 part of copolymer of alpha-olefin and maleic anhydride to the generator, and stirring for 280-350 seconds;
adding 4-6 parts of a mica and graphite mixture to the generator, wherein the weight ratio of mica to graphite is 1-3: 3-6, stirring for 200-300 seconds;
adding 3-5 parts of antioxidant into the generator, and stirring for 450-600 seconds;
adjusting the pH value of the mixture in the generator to 7.5-8, adding 15-20 parts of non-ionic waterborne polyurethane and 1.5-3 parts of surfactant into the generator, stirring for 1000-1500 seconds, and taking out the prepared continuous high-temperature-resistant paint.
2. The preparation method of claim 1, wherein the toughening agent is prepared by mixing high rubber powder and chlorinated polyethylene, wherein the weight ratio of the high rubber powder to the chlorinated polyethylene is 1-3: 3-6.
3. The method as claimed in claim 1, wherein the rotation speed of the stirring blade during the preparation process is 1500-.
4. The preparation method according to any one of claims 1 to 3, characterized in that the particle size of the borax is 40-80 mesh.
5. A paint with continuous high temperature resistance, which is prepared by the preparation method of claims 1-4.
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| CN110093103A (en) * | 2018-01-28 | 2019-08-06 | 姚建珍 | A kind of formula and its preparation process of Teflon high-temperaure coating paint |
| CN110845951A (en) * | 2019-12-06 | 2020-02-28 | 湖南太子化工涂料有限公司 | Waterborne polyurethane coating for engineering machinery and preparation method thereof |
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2020
- 2020-08-28 CN CN202010882542.1A patent/CN111961400A/en active Pending
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|---|---|---|---|---|
| EP0375318A2 (en) * | 1988-12-21 | 1990-06-27 | MITSUI TOATSU CHEMICALS, Inc. | Polyaldimine derivatives |
| CN110093103A (en) * | 2018-01-28 | 2019-08-06 | 姚建珍 | A kind of formula and its preparation process of Teflon high-temperaure coating paint |
| CN110845951A (en) * | 2019-12-06 | 2020-02-28 | 湖南太子化工涂料有限公司 | Waterborne polyurethane coating for engineering machinery and preparation method thereof |
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| Title |
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| 王光彬: "《涂料与涂装技术》", 31 August 1994, 国防工业出版社 * |
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