CN110256925B - Expansion type high-performance fireproof flame-retardant coating and preparation method thereof - Google Patents
Expansion type high-performance fireproof flame-retardant coating and preparation method thereof 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- 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
- C09D5/185—Intumescent 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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- 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
- C09D7/63—Additives non-macromolecular organic
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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- 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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Abstract
The invention discloses an intumescent high-performance fireproof flame-retardant coating and a preparation method thereof, belonging to the field of utilization of solid waste resources. The coating comprises acrylic resin, high chlorinated polyethylene resin, a composite catalyst, a foaming-charring agent, a dispersing agent SRE-4029, turpentine, an anti-settling agent and semi-dry desulfurized fly ash micro powder; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m. The invention not only reduces the production cost of the existing fireproof flame-retardant coating by about 30 percent, but also improves the flame-retardant property of the fireproof flame-retardant coating, realizes the integration of the metallurgical solid waste resource utilization and the flame-retardant property in the coating field, and greatly enhances the market competitiveness and the application range of the fireproof flame-retardant coating; develops a new idea of 'increasing efficiency by waste', and meets the policy requirements of relevant energy conservation, environmental protection and circular economy.
Description
Technical Field
The invention belongs to the field of solid waste resource utilization, and particularly relates to an intumescent high-performance fireproof flame-retardant coating and a preparation method thereof.
Background
With the control and reduction of SO in China2The emission intensity is continuously increased, and the flue gas desulfurization enters a rapid development stage. With the successive installation of desulfurization units, there is an increasing amount of desulfurization products. Wherein, the semi-dry desulphurization technology has obvious desulphurization effect and is widely applied to the desulphurization process of steel mills in China. The semi-dry desulfurized ash of the semi-dry desulfurized waste is extremely complex in components and consists of various components such as a desulfurizer, a desulfurized product, fly ash and the like (the main chemical components are 59.24 percent of CaO and SO)332.12% of Cl, 3.21% of Fe2O31.75%), and the calcium sulfite in the semi-dry desulfurized fly ash is quite unstable in property, so that the semi-dry desulfurized fly ash mainly stacked and discarded at present not only occupies a large amount of land but also further causes environmental pollution. Therefore, how to utilize the semidry desulfurization ash efficiently in a large scale to realize environment reduction and enterprise synergy is an urgent needThe problem to be solved.
The paint is mainly prepared from base materials, a solvent, pigment and filler and an auxiliary agent, wherein the pigment and filler not only can play a role in coloring and filling, but also can effectively improve the storage stability of the paint and the related performance of a paint film. The body pigment and filler in the pigment and seasoning mainly play a role in filling, so that the solid content and the coverage rate of the coating are improved, and the important basis for investigating the fireproof and flame-retardant performance is provided. At present, the main body pigments and fillers mainly comprise calcareous materials such as iron oxide, micaceous iron oxide, chromium oxide, zinc oxide, titanium oxide, lithopone, calcium carbonate, talc, nano clay and the like. The semidry desulfurized fly ash contains a large amount of calcium sulfite, and is firstly oxidized at high temperature to eliminate CaSO3Formation of CaSO4Fully utilize CaSO in the4The semi-dry desulfurized fly ash after oxidation is filled in an expansion flame-retardant system to improve the mechanical property and the fire resistance of a carbonized layer. Therefore, the metallurgical solid waste, namely the semi-dry desulphurization ash, is oxidized and then is used as a pigment filler to be added into the coating to prepare the intumescent high-performance fireproof flame-retardant coating, so that the cyclic utilization of solid waste resources is realized, and the synergy of enterprises is promoted.
Disclosure of Invention
Aiming at the current situation that metallurgical solid waste semi-dry process desulfurized fly ash is difficult to realize large-scale comprehensive utilization, in order to realize high added value application of semi-dry process desulfurized fly ash, an expansion type high-performance fireproof flame-retardant coating is prepared, the technical performance of the existing fireproof flame-retardant coating is improved, and the production cost of the fireproof flame-retardant coating is effectively reduced. The invention utilizes acrylic resin, high chlorinated polyethylene resin, composite catalyst, foaming-charring agent, dispersant, turpentine, anti-settling agent and semi-dry desulfurized fly ash micro powder to prepare the intumescent high-performance fireproof flame-retardant coating, and controls the calcining temperature, the calcining atmosphere, the calcining time, the stirring speed, the stirring time and the like so as to realize the high value-added recycling of the semi-dry desulfurized fly ash.
In order to solve the above technical problems, the present invention is realized by the following technical solutions.
The invention provides an intumescent high-performance fireproof flame-retardant coating, which comprises the following raw materials in percentage by weight:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1: 1-1: 1:4, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1: 1-1: 4, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure.
As an optimization, the particle size of the semi-dry desulfurization ash micro powder is 15-35 μm.
The invention also provides a preparation method of the intumescent high-performance fireproof flame-retardant coating, which comprises the following steps:
(1) calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 400-600 ℃ and the calcining atmosphere is oxygen for 10-30 min to obtain the oxidized desulfurized fly ash micro powder. Mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at the normal temperature, wherein the stirring speed is 600-1000 r/min, and the stirring time is 4-6 h, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 300-600 r/min, and the stirring time is 2-4 h, so as to obtain the turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersant into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 2-4 h at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 400-800 r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 500-700 r/min, the stirring time is 3-5 h, and then filtering by using a 300-mesh screen to obtain the intumescent high-performance fireproof flame-retardant coating.
The scientific principle of the invention is as follows:
(1) the unstable calcium sulfite content in the semidry desulfurized fly ash micropowder is higher, and the calcium sulfite is promoted to be converted into calcium sulfate by an oxidation method (calcination in air) to form the oxidized desulfurized fly ash micropowder. CaSO in oxidized desulfurized fly ash micro powder4Calcium carbonate and talcum powder are replaced as body pigment and filler.
(2) Because the ammonium polyphosphate can cure the acrylic resin and the high chlorinated polyethylene resin too fast, the boric acid and the guanyl urea phosphate are adopted to replace part of the ammonium polyphosphate to form a composite catalyst which takes the boric acid, the guanyl urea phosphate and the ammonium polyphosphate as main raw materials, and on one hand, the boric acid and the guanyl urea phosphate can relieve the excessive curing of the ammonium polyphosphate on the acrylic resin and the high chlorinated polyethylene resin; on the other hand, boric acid can float on the surface of the coating film, and a compact barrier layer is quickly formed in the foaming expansion process of the coating film which is heated and decomposed into carbon, so that heat transfer and gas exchange are prevented, and the boric acid and other components can synergistically retard flame and suppress smoke; meanwhile, the guanylurea phosphate can also effectively capture harmful substances such as free formaldehyde and the like in the coating film, and the environmental protection performance of the coating is improved.
(3) The intumescent flame retardant mechanism is as follows: first of all, melamine is decomposed by heating C3H3(NH2)3＝NH3+ C release incombustible gas NH3Forming an expanded foaming layer; secondly, the composite catalyst reacts with pentaerythritol to form a carbon skeleton in the expansion foaming layer; and finally, the oxidized desulfurized ash micro powder calcined at high temperature enters a carbon skeleton to form a compact and hard honeycomb-shaped carbon forming layer, so that the expansion foaming layer is prevented from being broken by flame.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention solves the problems that semi-dry desulfurized fly ash can not be utilized in a large scale, and the existing fireproof coating is high in price and the cost performance needs to be improved. The problem is solved, the production cost of the existing fireproof flame-retardant coating is reduced by about 30%, the flame retardant property of the fireproof flame-retardant coating is improved, the integration of metallurgical solid waste resource utilization and the flame retardant property in the coating field is realized, and the market competitiveness and the application range of the fireproof flame-retardant coating are greatly enhanced.
2. The invention utilizes acrylic resin, high chlorinated polyethylene resin, composite catalyst, foaming-charring agent, dispersant, turpentine, anti-settling agent and semi-dry desulfurized fly ash micro powder to prepare the intumescent high-performance fireproof flame-retardant coating, expands the high-added-value application of the semi-dry desulfurized fly ash and realizes a new idea of 'increasing efficiency with waste'.
3. The intumescent high-performance fireproof flame-retardant coating and the preparation method thereof meet the policy requirements of relevant energy-saving, environmental protection and circular economy.
Detailed Description
The present invention will be described in detail with reference to specific examples, but the present invention is not limited to the examples.
Example 1
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:1, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:3, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 which is industrially pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) And calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 500 ℃ and the calcining atmosphere is oxygen for 30min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at the normal temperature, wherein the stirring speed is 600r/min, and the stirring time is 5 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 600r/min, and the stirring time is 2h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 3 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 600r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after stirring at the speed of 500r/min for 5 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Example 2
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:4, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:2, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) And calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 400 ℃ and the calcining atmosphere is oxygen for 10min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 800r/min, and the stirring time is 6 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 400r/min, and the stirring time is 3h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 2 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 700r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after the stirring speed is 700r/min and the stirring time is 4 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Example 3
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:3, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:1, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) And calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 600 ℃ and the calcining atmosphere is oxygen for 20min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 1000r/min, and the stirring time is 4 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the high chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 500r/min, and the stirring time is 4h, so as to obtain a turpentine-high chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 4 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 800r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after stirring at the speed of 600r/min for 3 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Example 4
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:2, and the boric acid to the guanylurea phosphate to the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:4, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) Firstly, calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 500 ℃ and the calcining atmosphere is oxygen for 10min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at the normal temperature, wherein the stirring speed is 700r/min, and the stirring time is 6 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 300r/min, and the stirring time is 4h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 3 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 400r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after the stirring speed is 700r/min and the stirring time is 3 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Example 5
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:1, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:3, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) And calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 600 ℃ and the calcining atmosphere is oxygen for 20min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at the normal temperature, wherein the stirring speed is 900r/min, and the stirring time is 4 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 500r/min, and the stirring time is 3h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 2 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 500r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after stirring at the speed of 600r/min for 5 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Example 6
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:3, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:2, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure; the particle size of the semi-dry desulfurization ash micro powder is 15-35 mu m.
(1) And calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace under the conditions that the calcining temperature is 400 ℃ and the calcining atmosphere is oxygen for 30min to obtain the oxidized desulfurized fly ash micro powder. And (3) mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 800r/min, and the stirring time is 5 hours, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 300r/min, and the stirring time is 2h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 4 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 800r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after stirring at the speed of 500r/min for 4 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
Comparative example 1
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1:3, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1:2, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure.
(1) And (3) mixing the composite catalyst and the foaming-carbonizing agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 800r/min, and the stirring time is 5h, so as to obtain the pigment and filler.
(2) Mixing the turpentine and the highly chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 300r/min, and the stirring time is 2h, so as to obtain a turpentine-highly chlorinated polyethylene resin mixed solution. Adding acrylic resin and a dispersing agent into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 4 hours at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 800r/min, and filtering by using a 500-mesh screen to obtain the base material.
(3) And (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, and filtering by using a 300-mesh screen after stirring at the speed of 500r/min for 4 hours to obtain the intumescent high-performance fireproof flame-retardant coating.
The performance test procedures of the preparation examples 1-6 and the comparative example 1 are as follows:
a vertical combustion method is adopted. Covering the expansion type high-performance fireproof flame-retardant coating on one side of the test board, placing the test board on an iron stand with an iron clamp, facing the alcohol burner by the side of the test board coated with the expansion type high-performance fireproof flame-retardant coating, keeping the vertical distance between the test board and the mouth of the alcohol burner to be about 7cm, and starting timing to reach the detection end point when the flame temperature reaches about 1000 ℃. During detection, the back fire surface of the test board is carbonized during combustion, cracks appear, and the end point of the flame-resistant time (min) is determined. The drying time of the intumescent high-performance fireproof flame-retardant coating is tested according to a determination method of drying time of a paint film and a putty film (GB/T1728-1979), and the adhesive force of the intumescent high-performance fireproof flame-retardant coating is tested according to an adhesion test of a colored paint and varnish pulling method (GB/T5210-2006).
TABLE 1 Properties of intumescent, high-Performance, fire-retardant coating
Claims (3)
1. An intumescent high-performance fireproof flame-retardant coating is characterized by comprising the following raw materials in percentage by weight:
the acrylic resin is industrially pure; the high chlorinated polyethylene resin is industrial pure; the composite catalyst is a mixture of boric acid, guanylurea phosphate and ammonium polyphosphate, the mass ratio of the boric acid to the guanylurea phosphate to the ammonium polyphosphate is 1:1: 1-1: 1:4, and the boric acid, the guanylurea phosphate and the ammonium polyphosphate are industrially pure; the foaming-carbonizing agent is a mixture of melamine and pentaerythritol, the mass ratio of the melamine to the pentaerythritol is 1: 1-1: 4, and the melamine and the pentaerythritol are industrially pure; the dispersant is SRE-4029 dispersant which is industrial pure; the turpentine is industrial pure; the anti-settling agent is F118 anti-settling agent which is industrial pure.
2. The intumescent high performance fire retardant coating of claim 1, wherein the particle size of said semi-dry desulfurized fly ash micropowder is 15 μm to 35 μm.
3. A method for preparing the intumescent high performance fire retardant coating of claim 1, characterized in that it comprises the following steps:
(1) calcining the semi-dry desulfurized fly ash micro powder in a muffle furnace at the calcining temperature of 400-600 ℃ in the presence of oxygen for 10-30 min to obtain oxidized desulfurized fly ash micro powder; mixing the oxidized desulfurized ash micro powder, the composite catalyst and the foaming-charring agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 600-1000 r/min, and the stirring time is 4-6 h, so as to obtain the pigment filler;
(2) mixing turpentine and high chlorinated polyethylene resin at normal temperature by using a constant-temperature magnetic stirrer, wherein the stirring speed is 300-600 r/min, and the stirring time is 2-4 h, so as to obtain turpentine-high chlorinated polyethylene resin mixed solution; adding acrylic resin and a dispersant into the turpentine-high chlorinated polyethylene resin mixed solution, stirring for 2-4 h at normal temperature by using a constant-temperature magnetic stirrer with the stirring speed of 400-800 r/min, and filtering by using a 500-mesh screen to obtain a base material;
(3) and (3) mixing the pigment and filler prepared in the step (1), the base material prepared in the step (2) and the anti-settling agent by using a constant-temperature magnetic stirrer at normal temperature, wherein the stirring speed is 500-700 r/min, the stirring time is 3-5 h, and then filtering by using a 300-mesh screen to obtain the intumescent high-performance fireproof flame-retardant coating.
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| CN108410020B (en) * | 2018-04-19 | 2020-03-10 | 安徽工业大学 | Desulfurized fly ash-micro silicon powder composite rubber filler with reinforcement-flame-retardant synergistic performance |
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| CN1380368A (en) * | 2002-04-11 | 2002-11-20 | 海洋化工研究院 | Expanding fire-proof paint |
| CN1876740A (en) * | 2006-07-12 | 2006-12-13 | 海洋化工研究院 | Solvent-free expansion type fire-proof epoxy coating and its preparation method |
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