Concrete surface protective coating and preparation process thereof

Abstract

The invention provides a concrete surface protective coating and a preparation process thereof, and relates to the technical field of concrete. Comprising the following raw materials in parts by weight: 10-25 parts of a fiber reinforced material, 10-20 parts of high-temperature-resistant aggregate, 10-20 parts of a fireproof additive, 5-25 parts of a cross-linking agent, 10-35 parts of a polymer modifier, 5-15 parts of an antioxidant, 5-15 parts of an ultraviolet absorbent, 15-35 parts of polymer resin, 10-15 parts of a preservative, 10-15 parts of a mildew preventive, 10-15 parts of an anti-fouling agent and 10-15 parts of an antibacterial agent. The fiber reinforced material is added into the concrete protective coating to form a three-dimensional network structure, so that the toughness and tensile strength of concrete are improved, the viscosity of the concrete is also improved, and a proper amount of filler, such as silicate and quartz sand, is added to increase the contact area among internal particles of the concrete protective coating, so that the concrete protective coating is more stable. The viscosity and the strength of the concrete are improved; and the bonding auxiliary agent is a chemical additive specially designed for improving the viscosity of the concrete, and can improve the fluidity, the bonding force and the early strength of the concrete.

Description

Technical Field

[0001] The invention relates to the technical field of concrete, in particular to a concrete surface protective coating and a preparation process thereof. Background Art

[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials that are cemented into a whole by cementitious materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and additives) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] However, the existing concrete surface protective coating lacks fiber reinforcement materials, so it cannot enhance the tensile strength and crack resistance of concrete. If the protective coating does not have fiber reinforcement materials, if microcracks occur on the concrete surface or it is impacted, it may cause the coating to crack and fall off, reducing its protective effect; lack of high temperature resistant aggregates. If the aggregates used in the coating do not have high temperature resistance, then in a high temperature environment, the coating may lose stability, causing the surface to fall off or discolor, affecting its aesthetics and protective effect; and lack of anti-fouling function, then in some environments, the concrete surface is easily corroded by pollutants, such as oil stains, chemicals, etc. If the protective coating lacks anti-fouling agents, it may cause pollution and adhesion on the coating surface, affecting its aesthetics and cleanliness. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a concrete surface protective coating and a preparation process thereof, which solves the problem that the concrete surface protective coating lacks fiber reinforcement materials. If microcracks occur on the concrete surface or it is impacted, the coating may crack and fall off, thereby reducing its protective effect.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: a concrete surface protective coating, comprising the following raw materials in parts by weight: 5-15 parts of gypsum, 5-15 parts of silicate cement, 5-15 parts of calcium-based cement, 10-20 parts of bonding additives, 15-25 parts of fillers, 10-25 parts of fiber reinforcement materials, 10-20 parts of high temperature resistant aggregates, 10-20 parts of refractory additives, 5-25 parts of cross-linking agents, 10-35 parts of polymer modifiers, 5-15 parts of antioxidants, 5-15 parts of ultraviolet absorbers, 15-35 parts of polymer resins, 80-120 parts of water, 5-10 parts of diluents, 5-10 parts of thickeners, 5-10 parts of desiccant, 5-15 parts of pigments, 10-15 parts of preservatives, 10-15 parts of mildew inhibitors, 10-15 parts of antifouling agents and 10-15 parts of antibacterial agents.

[0006] Preferably, the bonding aid is a polymer emulsion.

[0007] Preferably, the filler is silicate and quartz sand.

[0008] Preferably, the fiber reinforcement material is any one of polypropylene fiber, glass fiber and polyethylene fiber.

[0009] Preferably, the high temperature resistant aggregate is ceramsite, high alumina aggregate and fused quartz, and the refractory additive is any one of refractory fiber or alumina powder.

[0010] Preferably, the cross-linking agent is any one of isocyanate, phenolic resin and epoxy resin, and the polymer modifier is any one of nitrile rubber, polyvinyl alcohol and acrylate copolymer.

[0011] Preferably, the antioxidant is any one of copper oxide or zinc oxide, the ultraviolet absorber is iron oxide, and the polymer resin is acrylic resin, epoxy resin and polyurethane resin.

[0012] Preferably, the diluent is any one of polycarboxylates and fatty alcohol polyoxyethylene ethers, the thickener is any one of calcium chloride, aluminum sulfate and polymer powder, and the desiccant is aluminum oxide.

[0013] Preferably, the preservative is any one of fluororesin and siloxane, and the mildew preventer is any one of ammonium chloride, quaternary ammonium salt and sodium hypochlorite;

[0014] The antifouling agent is fluorocarbon, and the antibacterial agent is any one of silver ions and copper ions.

[0015] Preferably, a concrete surface protective coating and a preparation process thereof include the following steps:

[0016] S1. Preliminary mixing

[0017] Add all the gypsum, silicate cement, calcium-based cement and filler into the mixer, then add 1 / 3 of water into the mixer, and finally stir the mixer at a speed of 1000-1500r / min. After continuous stirring for 10-25 minutes, a viscous fluid is obtained;

[0018] S2. Coating strength enhancement

[0019] Add all the adhesive additives to the viscous fluid in the mixer, then stir the viscous fluid at a speed of 200-500 r / min, and continue stirring for 5-10 minutes, then add all the fiber reinforcement materials into the mixer, and stir them at a speed of 500-1000 r / min, continue stirring for 15-25 minutes, and then stop stirring to obtain a reinforced fluid;

[0020] S3. Enhanced high temperature resistance of coating

[0021] Add all the high temperature resistant aggregates and refractory additives into the mixer, mix with the enhanced fluid obtained in S2, then add the last 1 / 3 of water into the mixer, and stir it at a speed of 1500-3500r / min, continue stirring for 15-35min and then stop stirring to obtain a high temperature resistant fluid;

[0022] S4.Coating modification

[0023] Add all the cross-linking agent and polymer modifier into the mixer, mix with the high temperature resistant fluid obtained in S3, and stir it at a speed of 600-1200 r / min. After continuous stirring for 10-25 minutes, stop stirring to obtain a modified fluid;

[0024] S5. Liquid raw material mixing

[0025] Add the remaining 1 / 3 of water to another mixer, then add all the polymer resin, an appropriate amount of diluent and an appropriate amount of thickener, and stir and mix them at a speed of 200-500r / min. Continue stirring for 5-10 minutes and then stop stirring to obtain a liquid with adjusted fluid concentration and viscosity, and take out the liquid for standby use;

[0026] S6. Fluid regulation

[0027] The reserved liquid taken out from S5 is added into the modified fluid in S4, and then the mixer is stirred at a speed of 1500-3500 r / min. The stirring is stopped after continuous stirring for 25-45 minutes to obtain a fluid with good concentration and viscosity;

[0028] S7. Final Mix

[0029] Add all the desiccants, appropriate amounts of pigments, preservatives, mildew preventers, antioxidants, ultraviolet absorbers, antifouling agents and antibacterial agents into the mixer in S6 in sequence, mix with the fluid obtained in S6, stir at a speed of 1000-2000 r / min, and continue stirring for 35-45 minutes before stopping stirring to obtain a coating with good comprehensive performance;

[0030] S8. Final Adjustments

[0031] If the concentration and viscosity of the paint obtained in S7 do not meet the use requirements, add an appropriate amount of diluent and thickener again and mix them with the paint obtained in S7. Finally, stir and mix them sufficiently according to the requirements of the site, so that the paint in the mixer is mixed with the diluent and thickener, so that the concentration and viscosity of the obtained paint can meet the use requirements. After the concentration and viscosity are adjusted, add an appropriate amount of pigment so that the color of the final paint can meet the use requirements.

[0032] The present invention provides a concrete surface protective coating and a preparation process thereof. It has the following beneficial effects:

[0033] 1. The present invention can form a three-dimensional network structure by adding fiber reinforcement materials to the concrete protective coating, thereby increasing the toughness and tensile strength of the concrete, and also improving the viscosity of the concrete. By adding some fillers such as silicates and quartz sand in appropriate amounts, the contact area between the internal particles of the concrete protective coating can be increased, thereby improving the viscosity and strength of the concrete. The bonding additive is a type of chemical additive specially designed to improve the viscosity of concrete, which can improve the fluidity, bonding force and early strength of the concrete.

[0034] 2. The present invention can improve the key to the high temperature resistance of concrete through high temperature resistant aggregates. Common high temperature resistant aggregates include expanded clay, high alumina aggregate, fused quartz, etc. These aggregates are not easy to soften or melt at high temperatures and can improve the stability of concrete. Refractory additives are chemical additives specially designed to improve the high temperature resistance of concrete. Refractory reaction products can be formed in concrete to improve the high temperature resistance of concrete. Common refractory additives include refractory fibers, alumina powder, etc.

[0035] 3. The present invention can reduce the adhesion of stains and make the coating surface easier to clean by adding anti-fouling agents to the coating, and can inhibit the growth of microorganisms such as bacteria and molds by adding antibacterial agents to keep the coating surface clean; adding ultraviolet absorbers can absorb ultraviolet rays and convert them into heat energy or other forms of energy, thereby preventing ultraviolet rays from damaging substances; adding antiseptics and mildew inhibitors are chemical substances used to protect concrete structures from corrosion and damage. They can prevent the erosion of concrete by water, chemicals and other factors, and extend the service life of concrete structures. DETAILED DESCRIPTION

[0036] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] The embodiment of the present invention provides a concrete surface protective coating, comprising the following raw materials in parts by weight: 5 parts of gypsum, 5 parts of silicate cement, 5 parts of calcium-based cement, 10 parts of bonding aid, 15 parts of filler, 10 parts of fiber reinforcement material, 10 parts of high temperature resistant aggregate, 10 parts of refractory additive, 5 parts of cross-linking agent, 10 parts of polymer modifier, 5 parts of antioxidant, 5 parts of ultraviolet absorber, 15 parts of polymer resin, 80 parts of water, 5 parts of diluent, 5 parts of thickener, 5 parts of desiccant, 5 parts of pigment, 10 parts of preservative, 10 parts of mildewproof agent, 10 parts of antifouling agent and 10 parts of antibacterial agent;

[0039] The bonding agent is a polymer emulsion, the filler is silicate and quartz sand, the fiber reinforcement material is any one of polypropylene fiber, glass fiber and polyethylene fiber, the high temperature resistant aggregate is ceramsite, high aluminum aggregate and fused quartz, the refractory additive is any one of refractory fiber or alumina micropowder, the cross-linking agent is any one of isocyanate, phenolic resin and epoxy resin, the polymer modifier is any one of nitrile rubber, polyvinyl alcohol and acrylate copolymer, the antioxidant is any one of copper oxide or zinc oxide, the ultraviolet absorber is iron oxide, the polymer resin is acrylic resin, epoxy resin and polyurethane resin, the diluent is any one of polycarboxylates and fatty alcohol polyoxyethylene ether, the thickener is any one of calcium chloride, aluminum sulfate and polymer powder, the desiccant is aluminum oxide, the preservative is any one of fluororesin and siloxane, the mildew inhibitor is any one of ammonium chloride, quaternary ammonium salt and sodium hypochlorite; the antifouling agent is fluorocarbon, and the antibacterial agent is any one of silver ion and copper ion.

[0040] A concrete surface protective coating and a preparation process thereof, comprising the following steps:

[0041] S1. Preliminary mixing

[0042] Add all the gypsum, silicate cement, calcium-based cement and filler into the mixer, then add 1 / 3 of water into the mixer, and finally stir the mixer at a speed of 1000r / min. After continuous stirring for 10 minutes, a viscous fluid is obtained;

[0043] S2. Coating strength enhancement

[0044] All the adhesive additives were added to the viscous fluid in the mixer, and then the viscous fluid was stirred at a speed of 200 r / min, and the stirring was continued for 5 minutes. All the fiber reinforcement materials were added to the mixer, and stirred at a speed of 500 r / min. The stirring was continued for 15 minutes and then stopped to obtain a reinforced fluid;

[0045] S3. Enhanced high temperature resistance of coating

[0046] Add all the high temperature resistant aggregates and refractory additives into the mixer, mix with the enhanced fluid obtained in S2, then add the last 1 / 3 of water into the mixer, and stir it at a speed of 1500r / min. After stirring for 15 minutes, stop stirring to obtain a high temperature resistant fluid;

[0047] S4.Coating modification

[0048] Add all the cross-linking agent and polymer modifier into the mixer, mix with the high temperature resistant fluid obtained in S3, and stir it at a speed of 600 r / min. After stirring for 10 minutes, stop stirring to obtain a modified fluid;

[0049] S5. Liquid raw material mixing

[0050] In another mixer, add the remaining 1 / 3 of water, then add all the polymer resin, an appropriate amount of diluent and an appropriate amount of thickener, and stir and mix them at a speed of 200 r / min. After stirring for 5 minutes, stop stirring to obtain a liquid with adjusted fluid concentration and viscosity, and take out the liquid for standby use;

[0051] S6. Fluid regulation

[0052] The reserved liquid taken out from S5 is added into the modified fluid in S4, and then the mixer is stirred at a speed of 1500 r / min. After continuous stirring for 25 minutes, stirring is stopped to obtain a fluid with good concentration and viscosity;

[0053] S7. Final Mix

[0054] Add all the desiccants, appropriate amounts of pigments, preservatives, mildew preventers, antioxidants, ultraviolet absorbers, antifouling agents and antibacterial agents into the mixer in S6 in sequence, mix with the fluid obtained in S6, stir at a speed of 1000 r / min, and stop stirring after stirring for 35 minutes to obtain a coating with good comprehensive performance;

[0055] S8. Final Adjustments

[0056] If the concentration and viscosity of the paint obtained in S7 do not meet the use requirements, add an appropriate amount of diluent and thickener again and mix them with the paint obtained in S7. Finally, stir and mix them sufficiently according to the requirements of the site, so that the paint in the mixer is mixed with the diluent and thickener, so that the concentration and viscosity of the obtained paint can meet the use requirements. After the concentration and viscosity are adjusted, add an appropriate amount of pigment so that the color of the final paint can meet the use requirements.

[0057] The coating adopts a variety of raw materials, including gypsum, cement, bonding additives, fillers, fiber reinforcement materials, etc., so that the coating has excellent high temperature resistance, fire resistance, corrosion resistance and other properties, and can effectively protect the concrete surface; the coating contains a variety of different types of raw materials, such as polymers, fibers, refractory materials, etc., which comprehensively improves the performance of the coating and can adapt to different environments and usage requirements; the preparation process is clear and step-by-step, easy to operate, easy to master, and conducive to the stability and control of the production process; antioxidants, preservatives, mildew inhibitors, antifouling agents and antibacterial agents are added to the coating, which can effectively extend the service life of the coating and improve its stability and durability; during the preparation process, the concentration and viscosity of the coating can be adjusted as needed to ensure that the performance of the coating can meet the specific usage requirements; in general, this concrete surface protective coating and its preparation process have the advantages of diversified ingredients, excellent performance, simple preparation process, etc., can effectively protect the concrete structure, extend its service life, and have high practical value.

[0058] Embodiment 2:

[0059] The embodiment of the present invention provides a concrete surface protective coating, comprising the following raw materials in parts by weight: 15 parts of gypsum, 15 parts of silicate cement, 15 parts of calcium-based cement, 20 parts of bonding aid, 25 parts of filler, 25 parts of fiber reinforcement material, 20 parts of high temperature resistant aggregate, 20 parts of refractory additive, 25 parts of cross-linking agent, 35 parts of polymer modifier, 15 parts of antioxidant, 15 parts of ultraviolet absorber, 35 parts of polymer resin, 120 parts of water, 10 parts of diluent, 10 parts of thickener, 10 parts of desiccant, 15 parts of pigment, 15 parts of preservative, 15 parts of mildewproof agent, 15 parts of antifouling agent and 15 parts of antibacterial agent;

[0060] The bonding agent is a polymer emulsion, the filler is silicate and quartz sand, the fiber reinforcement material is any one of polypropylene fiber, glass fiber and polyethylene fiber, the high temperature resistant aggregate is ceramsite, high aluminum aggregate and fused quartz, the refractory additive is any one of refractory fiber or alumina micropowder, the cross-linking agent is any one of isocyanate, phenolic resin and epoxy resin, the polymer modifier is any one of nitrile rubber, polyvinyl alcohol and acrylate copolymer, the antioxidant is any one of copper oxide or zinc oxide, the ultraviolet absorber is iron oxide, the polymer resin is acrylic resin, epoxy resin and polyurethane resin, the diluent is any one of polycarboxylates and fatty alcohol polyoxyethylene ether, the thickener is any one of calcium chloride, aluminum sulfate and polymer powder, the desiccant is aluminum oxide, the preservative is any one of fluororesin and siloxane, the mildew inhibitor is any one of ammonium chloride, quaternary ammonium salt and sodium hypochlorite; the antifouling agent is fluorocarbon, and the antibacterial agent is any one of silver ion and copper ion.

[0061] A concrete surface protective coating and a preparation process thereof, comprising the following steps:

[0062] S1. Preliminary mixing

[0063] Add all the gypsum, silicate cement, calcium-based cement and filler into the mixer, then add 1 / 3 of water into the mixer, and finally stir the mixer at a speed of 1500r / min. After stirring for 25 minutes, a viscous fluid is obtained;

[0064] S2. Coating strength enhancement

[0065] All the adhesive additives were added to the viscous fluid in the mixer, and then the viscous fluid was stirred at a speed of 500 r / min and continued to stir for 10 minutes. All the fiber reinforcement materials were added to the mixer and stirred at a speed of 1000 r / min. The stirring was stopped after continuing to stir for 25 minutes to obtain a reinforced fluid.

[0066] S3. Enhanced high temperature resistance of coating

[0067] Add all the high temperature resistant aggregates and refractory additives into the mixer, mix with the enhanced fluid obtained in S2, then add the last 1 / 3 of water into the mixer, and stir it at a speed of 3500r / min. After stirring for 35 minutes, stop stirring to obtain a high temperature resistant fluid;

[0068] S4.Coating modification

[0069] Add all the cross-linking agent and polymer modifier into the mixer, mix with the high temperature resistant fluid obtained in S3, and stir it at a speed of 1200 r / min. After stirring for 25 minutes, stop stirring to obtain a modified fluid;

[0070] S5. Liquid raw material mixing

[0071] Add the remaining 1 / 3 of water to another mixer, then add all the polymer resin, an appropriate amount of diluent and an appropriate amount of thickener, and stir and mix them at a speed of 500 r / min. After stirring for 10 minutes, stop stirring to obtain a liquid with adjusted fluid concentration and viscosity, and take out the liquid for standby use;

[0072] S6. Fluid regulation

[0073] The reserved liquid taken out from S5 is added into the modified fluid in S4, and then the mixer is stirred at a speed of 3500 r / min. After continuous stirring for 45 minutes, stirring is stopped to obtain a fluid with good concentration and viscosity;

[0074] S7. Final Mix

[0075] Add all the desiccants, appropriate amounts of pigments, preservatives, mildew preventers, antioxidants, ultraviolet absorbers, antifouling agents and antibacterial agents into the mixer in S6 in sequence, mix with the fluid obtained in S6, stir at a speed of 2000 r / min, and stop stirring after stirring for 45 minutes to obtain a coating with good comprehensive performance;

[0076] S8. Final Adjustments

[0077] If the concentration and viscosity of the paint obtained in S7 do not meet the use requirements, add an appropriate amount of diluent and thickener again and mix them with the paint obtained in S7. Finally, stir and mix them sufficiently according to the requirements of the site, so that the paint in the mixer is mixed with the diluent and thickener, so that the concentration and viscosity of the obtained paint can meet the use requirements. After the concentration and viscosity are adjusted, add an appropriate amount of pigment so that the color of the final paint can meet the use requirements.

[0078] The coating adopts a variety of raw materials, including gypsum, cement, bonding additives, fillers, fiber reinforcement materials, etc., so that the coating has excellent high temperature resistance, fire resistance, corrosion resistance and other properties, and can effectively protect the concrete surface; the coating contains a variety of different types of raw materials, such as polymers, fibers, refractory materials, etc., which comprehensively improves the performance of the coating and can adapt to different environments and usage requirements; the preparation process is clear and step-by-step, easy to operate, easy to master, and conducive to the stability and control of the production process; antioxidants, preservatives, mildew inhibitors, antifouling agents and antibacterial agents are added to the coating, which can effectively extend the service life of the coating and improve its stability and durability; during the preparation process, the concentration and viscosity of the coating can be adjusted as needed to ensure that the performance of the coating can meet the specific usage requirements; in general, this concrete surface protective coating and its preparation process have the advantages of diversified ingredients, excellent performance, simple preparation process, etc., can effectively protect the concrete structure, extend its service life, and have high practical value.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete surface protective coating, characterized in that: The invention comprises the following raw materials in parts by weight: 5-15 parts of gypsum, 5-15 parts of silicate cement, 5-15 parts of calcium-based cement, 10-20 parts of bonding aid, 15-25 parts of filler, 10-25 parts of fiber reinforcement material, 10-20 parts of high temperature resistant aggregate, 10-20 parts of refractory additive, 5-25 parts of cross-linking agent, 10-35 parts of polymer modifier, 5-15 parts of antioxidant, 5-15 parts of ultraviolet absorber, 15-35 parts of polymer resin, 80-120 parts of water, 5-10 parts of diluent, 5-10 parts of thickener, 5-10 parts of desiccant, 5-15 parts of pigment, 10-15 parts of preservative, 10-15 parts of mildewproof agent, 10-15 parts of antifouling agent and 10-15 parts of antibacterial agent.

2. The concrete surface protective coating according to claim 1, characterized in that: The bonding aid is a polymer emulsion.

3. The concrete surface protective coating according to claim 1, characterized in that: The fillers are silicate and quartz sand.

4. The concrete surface protective coating according to claim 1, characterized in that: The fiber reinforcement material is any one of polypropylene fiber, glass fiber and polyethylene fiber.

5. The concrete surface protective coating according to claim 1, characterized in that: The high temperature resistant aggregate is ceramsite, high alumina aggregate and fused quartz, and the refractory additive is any one of refractory fiber and alumina powder.

6. The concrete surface protective coating according to claim 1, characterized in that: The cross-linking agent is any one of isocyanate, phenolic resin and epoxy resin, and the polymer modifier is any one of nitrile rubber, polyvinyl alcohol and acrylate copolymer.

7. The concrete surface protective coating according to claim 1, characterized in that: The antioxidant is any one of copper oxide or zinc oxide, the ultraviolet absorber is iron oxide, and the polymer resin is acrylic resin, epoxy resin and polyurethane resin.

8. The concrete surface protective coating according to claim 1, characterized in that: The diluent is any one of polycarboxylates and fatty alcohol polyoxyethylene ethers, the thickener is any one of calcium chloride, aluminum sulfate and polymer powder, and the desiccant is aluminum oxide.

9. The concrete surface protective coating according to claim 1, characterized in that: The preservative is any one of fluororesin and siloxane, and the mildew preventer is any one of ammonium chloride, quaternary ammonium salt and sodium hypochlorite; The antifouling agent is fluorocarbon, and the antibacterial agent is any one of silver ions and copper ions.

10. The concrete surface protective coating and preparation process thereof according to claim 1, characterized in that: The following steps are involved: S1. Preliminary mixing Add all the gypsum, silicate cement, calcium-based cement and filler into the mixer, then add 1 / 3 of water into the mixer, and finally stir the mixer at a speed of 1000-1500r / min. After continuous stirring for 10-25 minutes, a viscous fluid is obtained; S2. Coating strength enhancement Add all the adhesive additives to the viscous fluid in the mixer, then stir the viscous fluid at a speed of 200-500 r / min, and continue stirring for 5-10 minutes, then add all the fiber reinforcement materials into the mixer, and stir them at a speed of 500-1000 r / min, continue stirring for 15-25 minutes, and then stop stirring to obtain a reinforced fluid; S3. Enhanced high temperature resistance of coating Add all the high temperature resistant aggregates and refractory additives into the mixer, mix with the enhanced fluid obtained in S2, then add the last 1 / 3 of water into the mixer, and stir it at a speed of 1500-3500r / min, continue stirring for 15-35min and then stop stirring to obtain a high temperature resistant fluid; S4.Coating modification Add all the cross-linking agent and polymer modifier into the mixer, mix with the high temperature resistant fluid obtained in S3, and stir it at a speed of 600-1200 r / min. After continuous stirring for 10-25 minutes, stop stirring to obtain a modified fluid; S5. Liquid raw material mixing Add the remaining 1 / 3 of water to another mixer, then add all the polymer resin, an appropriate amount of diluent and an appropriate amount of thickener, and stir and mix them at a speed of 200-500r / min. Continue stirring for 5-10 minutes and then stop stirring to obtain a liquid with adjusted fluid concentration and viscosity, and take out the liquid for standby use; S6. Fluid regulation The reserved liquid taken out from S5 is added into the modified fluid in S4, and then the mixer is stirred at a speed of 1500-3500 r / min. The stirring is stopped after continuous stirring for 25-45 minutes to obtain a fluid with good concentration and viscosity; S7. Final Mix Add all the desiccants, appropriate amounts of pigments, preservatives, mildew preventers, antioxidants, ultraviolet absorbers, antifouling agents and antibacterial agents into the mixer in S6 in sequence, mix with the fluid obtained in S6, stir at a speed of 1000-2000 r / min, and continue stirring for 35-45 minutes before stopping stirring to obtain a coating with good comprehensive performance; S8. Final Adjustments If the concentration and viscosity of the paint obtained in S7 do not meet the use requirements, add an appropriate amount of diluent and thickener again, mix with the paint obtained in S7, and finally stir and mix fully according to the requirements of the site, so that the paint in the mixer is mixed with the diluent and thickener to make the obtained paint concentration The concentration and viscosity can meet the use requirements. After the concentration and viscosity are adjusted, add the appropriate amount of pigment. The final paint color can meet the use requirements.