CN110423534B - Transparent fireproof coating system and application thereof in wood structure ancient building - Google Patents
Transparent fireproof coating system and application thereof in wood structure ancient building Download PDFInfo
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- CN110423534B CN110423534B CN201910693411.6A CN201910693411A CN110423534B CN 110423534 B CN110423534 B CN 110423534B CN 201910693411 A CN201910693411 A CN 201910693411A CN 110423534 B CN110423534 B CN 110423534B
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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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/16—Homopolymers or copolymers of vinylidene fluoride
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
-
- 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
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a transparent fireproof coating system which comprises a transparent fireproof coating and a transparent protective coating, wherein the transparent fireproof coating is prepared from a component A and a component B, and the component A comprises the following components in parts by weight: 10-40 parts of epoxy resin, 10-30 parts of pentaerythritol, 10-40 parts of phosphoric acid, 15-30 parts of solvent, 0.5-5 parts of auxiliary agent and 0.5-5 parts of flame-retardant filler; the component B comprises 20-50 parts of melamine, 10-40 parts of urea, 15-40 parts of solvent, 0.5-5 parts of auxiliary agent, 0.5-5 parts of flame-retardant filler and 20-45 parts of formaldehyde. The transparent protective coating is prepared from the following components in parts by weight: 20-40 parts of fluororesin, 0.05-2 parts of coupling agent, 50-70 parts of solvent and 1-10 parts of auxiliary agent. The coating system is used for wood structure ancient buildings, and has excellent adhesive force, transparency, environmental adaptability and the like.
Description
Technical Field
The invention relates to the technical field of wood structure fire prevention of historic buildings, in particular to a transparent fire-proof coating system and application thereof in wood structure historic buildings.
Background
The historic building is a treasure of world civilization and has special historical value and cultural value. Once the loss is irrelatively destroyed by irreversible damage such as fire, the loss caused by the fire of brazilian museum and paris holy house in 2018 and 2019 can be said to be a disaster of all mankind. China is a big country of ancient architecture and cultural relics, in particular to a wooden structure ancient architecture which has a plurality of excellent colors and skillful skills; historically, one of the major reasons for the difficulty in maintaining wooden historic buildings has been fire hazards. The fireproof coating is widely applied to the fields of steel structures and concrete tunnels at the present stage, but the following defects exist in the field of wood structures, particularly the field of wood structures of ancient buildings:
(1) the transparency was poor. Any additional protective measures cannot influence the aesthetic effect of the historic building wood structure, but the transparency of the existing transparent fireproof coating is generally poor.
(2) The environmental suitability is poor. Any coating used on the outermost surface of the wood must have good water resistance, light aging resistance, dry-wet alternation resistance and other properties to ensure long-term effect, which is just a problem that the existing transparent fireproof coating is difficult to overcome.
(3) The fire resistance is poor. According to a test method specified in GB12441-2018 'finishing type fireproof paint', the fire surface limit temperature of a wood structure fireproof coating is 220 ℃, the fire resistance time is more than or equal to 15min, but for a wood structure, the surface of wood at the temperature of more than 180 ℃ is irreversibly damaged (carbonized), and the ancient building wood structure belongs to a scarce resource of cultural relics and cannot tolerate any irreversible damage. Obviously, the fire surface limit temperature of 220 ℃ is too high for ancient buildings, so that the fire resistance and the heat insulation effect must be further improved.
Disclosure of Invention
In order to overcome the defects of the prior art and improve the transparency, the environmental resistance and the fire resistance of the wood structure fire-retardant coating, the invention provides a special transparent fire-retardant coating system for the wood structure of the historic building.
The technical scheme of the invention is as follows:
a transparent fireproof coating system comprises a transparent fireproof coating and a transparent protective coating, wherein the thickness of the transparent fireproof coating is 0.5-1mm, the coating is too thick, the transparency is poor, the aesthetic effect of the historic building wood structure can be influenced, and the coating is too thin, so that the fireproof performance of the coating is poor; the thickness of the transparent protective coating is 0.01-0.02 mm.
The transparent fireproof coating is prepared from a component A and a component B, wherein the component A comprises the following components in parts by weight:
10-40 parts of epoxy resin, 10-30 parts of pentaerythritol, 10-40 parts of phosphoric acid, 15-30 parts of solvent, 0.5-5 parts of auxiliary agent and 0.5-5 parts of flame-retardant filler.
The component B is prepared from the following components in parts by weight: 20-50 parts of melamine, 10-40 parts of urea, 15-40 parts of solvent, 0.5-5 parts of auxiliary agent, 0.5-5 parts of flame-retardant filler and 20-45 parts of formaldehyde.
Wherein the component A and the component B are as follows according to the mass ratio: and (2) component A: and the component B is 80-100: 100-150, when the component B is used after being mixed, the fire-proof performance is affected by the excessive or insufficient amount of the component B, and the requirement of the invention can not be met.
Wherein, the epoxy resin is preferably any one or more of E-03, E-09, E-12, E-20 and E-51.
Wherein, preferably, the flame-retardant filler is any one or more of ammonium polyphosphate (polymerization degree is more than 1000), aluminum hydroxide, zinc borate, dicyandiamide and the like; wherein the flame-retardant filler in the component A is preferably ammonium polyphosphate, the flame-retardant filler in the component B is preferably aluminum hydroxide and dicyandiamide for compounding, and the compounding ratio is 1: (1-1.5).
Wherein, the selected solvent is preferably any one or more of formaldehyde, ethanol, cycloethanone, n-butanol and the like.
Wherein, the selected assistant is preferably any one or more of a macromolecular block copolymer wetting dispersant containing pigment active affinity groups, a polyester modified polydimethylsiloxane surface assistant and a modified polyurea rheological assistant.
The preparation method of the component A sequentially comprises the following steps:
(1) stirring the epoxy resin in cyclohexanone for 20min-40min until the epoxy resin is uniform and transparent; (2) adding pentaerythritol and a solvent into phosphoric acid, stirring until full esterification, and reacting for 1-1.5 h; (3) and (3) mixing the epoxy resin, the liquid prepared in the step (2), the flame-retardant filler and the auxiliary agent, stirring for 10-15 min, grinding in a sand mill until the fineness is less than or equal to 10 mu m, filtering and packaging.
The preparation method of the component B sequentially comprises the following steps: (1) stirring melamine, urea and formaldehyde in a solvent, heating to a certain temperature, and starting a synthesis reaction until the mixture is uniform and transparent for 2-2.5 hours; (2) adding the flame-retardant filler and the auxiliary agent into the liquid prepared in the step (1), mixing, stirring for 10-15 min, grinding in a sand mill until the fineness is less than or equal to 10 mu m, filtering and packaging.
The transparent protective coating is a special protective coating for the historic building wood structure, is a single-component coating and is prepared from the following components in parts by weight:
20-40 parts of fluororesin, 0.05-2 parts of coupling agent, 50-70 parts of solvent and 1-10 parts of auxiliary agent. Among them, the fluororesin is preferably a copolymer of any two or more of vinylidene fluoride, chlorotrifluoroethylene, fluorostyrene and other fluorine-containing monomers, the fluororesin has a weight average molecular weight (Mw) of 5 to 8 ten thousand and an intrinsic viscosity (dl/g) of 0.6 to 0.9.
The molecular weight of the fluororesin is controlled to be 5-8 ten thousand, so that the hydrophobicity of the transparent protective coating can be effectively improved, the smoke content in a fire resistance test can be reduced, and the density of the fireproof expansion body can be improved; meanwhile, the molecular weight is too low, the mechanical properties such as toughness of the coating are poor, the molecular weight is too high, and the coating is not easy to dissolve in a solvent for coating. In addition, although the fluorine resin with the perfluoro main chain has excellent hydrophobicity and aging resistance, the molecular chain polarity is low, the physical and chemical adsorption capacity is poor, and the coating adhesion is poor. Therefore, one or more coupling agents with excellent compatibility with the fluororesin are selected, the adhesive force of the transparent protective coating and the transparent fireproof coating is improved in a mode of generating chemical bonding with the active functional groups in the transparent fireproof coating, the overall adhesive force of the coating system of the invention is influenced due to too low adhesive force of the transparent protective coating and the transparent fireproof coating, the coating system is easy to fall off, the adhesive force of the transparent protective coating and the transparent fireproof coating is too high, volume shrinkage is caused when the solvent of the transparent protective coating volatilizes, and the adhesive force of the transparent fireproof coating and the wood structure of the ancient building is easy to influence. Preferably, the selected coupling agent is selected from one or more of an ammonia (amine) hydrocarbyl silane coupling agent, an epoxy hydrocarbyl silane coupling agent and a methacryloxy hydrocarbyl silane coupling agent, and the coupling agents can meet the requirement of the adhesion of a coating system.
Preferably, the selected solvent is one or more of ethyl acetate, toluene, acetone, butyl acetate and the like.
The preparation method of the transparent protective coating sequentially comprises the following steps: (1) and (3) stirring the fluororesin, the solvent, the auxiliary agent and the coupling agent for 30 min-1 h, uniformly stirring, and packaging after the mixture is transparent and colorless.
The invention also comprises the application of the transparent fireproof coating system in the wood structure historic building, and the transparent fireproof coating and the transparent protective coating are coated on the wood structure historic building when in use.
The invention has the following beneficial effects:
1. the special transparent fireproof coating system for the historic building timber structure has excellent mechanical properties such as adhesive force, transparency, environmental adaptability and the like.
2. The fireproof coating has excellent fireproof performance and good heat insulation effect, the fire surface limit temperature of the fireproof coating is 180 ℃, and the fireproof time is more than or equal to 15 min.
Detailed Description
The technical scheme of the embodiment of the invention is clearly and completely described below. The described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
The auxiliary agent in the component A is a high molecular weight polyurethane dispersant: number BYK 163.
The ammonium polyphosphate in the component A has the brand number of AP 422.
The auxiliary agents in the component B are: BYK163, a silicone wetting agent BYK306 or an anti-settling agent BYK 410.
The coupling agent in the transparent protective coating is as follows: n- (. beta. -aminoethyl) -gamma-aminopropyltrimethoxysilane, designation 6020.
The auxiliary agents in the protective coating are as follows: (brand) BYK410 or BYK 306.
A transparent fireproof coating for an ancient building wood structure comprises a component A and a component B (packaged separately), wherein the component A is shown in a table 1, and the unit is weight.
TABLE 1 component A formulation
The preparation process of the component A comprises the following steps: (1) stirring the epoxy resin in cyclohexanone for 30min until the epoxy resin is uniform and transparent; (2) adding pentaerythritol and a solvent into phosphoric acid, and stirring until full esterification is achieved for 1 hour; (3) mixing the epoxy resin, the liquid prepared in the step (2), the ammonium polyphosphate and the auxiliary agent, stirring for 10min, grinding in a sand mill to obtain a powder with the fineness of less than or equal to 10 microns, filtering and packaging.
The component B is shown in the table 2, and the unit is weight portion.
TABLE 2 component B formulation
| Serial number | Composition of matter | Example 1 | Example 2 | Example 3 | Example 4 |
| 1 | Melamine | 20 | 25 | 22 | 30 |
| 2 | Urea | 20 | 25 | 20 | 25 |
| 3 | Formaldehyde (I) | 44 | 32.5 | 37 | 23 |
| 4 | N-butanol | 22 | 15 | 27 | 20 |
| 5 | BYK163 | 1 | 0.5 | 1 | 0.5 |
| 6 | BYK306 | 0.5 | 0.5 | 0.5 | — |
| 7 | BYK410 | 0.5 | 0.5 | 0.5 | 0.5 |
| 9 | Aluminum hydroxide | 1 | 0.5 | 1 | 0.5 |
| 10 | Dicyandiamide | 1 | 0.5 | 1 | 0.5 |
The preparation process of the component B comprises the following steps: (1) stirring melamine, urea and formaldehyde in a solvent, heating to a certain temperature of 70-75 ℃, and starting a synthesis reaction until the mixture is uniform and transparent for 2 hours; (2) adding dicyandiamide, aluminum hydroxide and an auxiliary agent into the liquid prepared in the step (1), mixing, stirring for 10min, grinding in a sand mill to obtain a product with the fineness of less than or equal to 10 microns, filtering, and packaging.
A transparent protective paint specially used for historic building timber structure is prepared through emulsion polymerization copolymerization of fluoro-resin vinylidene fluoride and chlorotrifluoroethylene, wherein the molar ratio of vinylidene fluoride to chlorotrifluoroethylene as comonomer is 4:1, the weight-average molecular weight (Mw) is 5-8 ten thousand, and the intrinsic viscosity is 0.6-0.9 deciliter/gram.
The formulation of the transparent protective coating is shown in Table 3, and the unit is weight portion.
TABLE 3 transparent protective coating formulations
| Serial number | Composition of matter | Example 1 | Example 2 | Example 3 | Example 4 |
| 1 | Fluororesin | 20 | 25 | 30 | 40 |
| 2 | Ethyl acetate | 77 | 72 | 68 | 57.5 |
| 3 | BYK306 | 1 | 1 | 1 | 1 |
| 4 | BYK410 | 1 | 1 | 0.5 | 0.5 |
| 5 | Coupling agent | 1 | 1 | 1 | 1 |
The preparation process of the special transparent protective coating for the historic building wood structure comprises the following steps: (1) stirring fluororesin, solvent, assistant and coupling agent for 30min, stirring uniformly, and packaging.
When in use, the component A and the component B of the transparent fireproof coating of each embodiment are mixed according to the weight ratio of 1: 1.5, mixing, coating on the wood structure ancient building, and coating a transparent protective coating after the surface is dried.
A transparent fireproof coating system (design of a matching system) special for a historic building timber structure, which is shown in table 4.
TABLE 4
The products of the above examples were subjected to performance tests according to GB12441-2018 'finishing type fireproof paint', GB/T1738-1979 'determination of water absorption of insulating paint film', GB/T1865-2009 'artificial weathering and artificial radiation exposure of colored paint and varnish', and GB/T2410-2008 'determination of light transmittance and haze of transparent plastic', and the test results are shown in Table 5.
TABLE 5
From table 5, it can be seen that the special transparent fireproof coating system for the historic building wood structure provided by the invention obviously improves the fireproof performance, the environment resistance and the transparency of the traditional transparent fireproof coating system, and the test indexes are greatly superior to the standard requirements.
Comparative example 1
The coupling agent of the transparent protective coating is replaced by vinyldimethoxysilane on the basis of the example 1, and the rest is the same as the example 1.
Comparative example 2
The dosage of the coupling agent of the transparent protective coating is increased to 2.5 parts on the basis of the example 1, the dosage of the solvent ethyl acetate is 75.5 parts, and the rest is the same as the example 1.
Comparative example 3
The flame-retardant filler dicyandiamide in the component B in the example 1 is removed, and the amount of the aluminum hydroxide is changed to 2 parts, which is the same as that in the example 1.
Comparative example 4
The flame retardant filler aluminum hydroxide in component B of example 1 was removed and the amount of dicyandiamide used was changed to 2 parts, the rest being the same as in example 1.
The comparative products are respectively subjected to performance tests according to GB12441-2018 'finishing type fireproof paint', GB/T1738-1979 'determination method for water absorption of insulating paint film', GB/T1865-2009 'artificial weathering aging and artificial radiation exposure of colored paint and varnish', and GB/T2410-2008 'determination method for light transmittance and haze of transparent plastic', and the test results are shown in Table 6.
TABLE 6
As can be seen from the comparative example 1, the silane with less active groups can cause the adhesive force of the transparent protective coating and the transparent fireproof coating to be too low, the integral adhesive force of the coating system of the invention is influenced, and the coating is easy to fall off; the test result of the comparative example 2 is equivalent to that of the example 1, which is not shown here, and the effect is not obvious when the amount of the coupling agent is increased; as can be seen from comparative examples 3-4, the flame retardant fillers dicyandiamide and aluminum hydroxide have synergistic effect in the aspects of fire resistance and heat insulation effect in the formula system of the transparent fireproof coating.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be considered within the scope of the present invention.
Claims (9)
1. A transparent fireproof coating system is characterized by consisting of a transparent fireproof coating and a transparent protective coating, wherein the thickness of the transparent fireproof coating is 0.5-1mm, and the thickness of the transparent protective coating is 0.01-0.02 mm;
the transparent protective coating is positioned on the surface of the transparent fireproof coating;
the transparent protective coating comprises a coupling agent and fluororesin, wherein the coupling agent is one or more of an amino hydrocarbyl silane coupling agent, an epoxy hydrocarbyl silane coupling agent and a methacryloxy hydrocarbyl silane coupling agent; the fluororesin is formed by copolymerizing any two or more of vinylidene fluoride, chlorotrifluoroethylene and fluorine-containing styrene,
the transparent fireproof coating is prepared from a component A and a component B, wherein the component A is prepared from the following components in parts by weight: 10-40 parts of epoxy resin, 10-30 parts of pentaerythritol, 10-40 parts of phosphoric acid, 15-30 parts of solvent, 0.5-5 parts of auxiliary agent and 0.5-5 parts of flame-retardant filler;
the component B is prepared from the following components in parts by weight: 20-50 parts of melamine, 10-40 parts of urea, 15-40 parts of solvent, 0.5-5 parts of auxiliary agent, 0.5-5 parts of flame-retardant filler and 20-45 parts of formaldehyde;
the weight average molecular weight of the fluororesin is 5-8 ten thousand;
the flame-retardant filler in the component B is aluminum hydroxide and dicyandiamide.
2. The transparent fireproof coating system according to claim 1, wherein component a and component B are in mass ratio: and (2) component A: component B = 80-100: 100-150.
3. The transparent fire-retardant coating system according to claim 1, wherein the epoxy resin is any one or more of E-03, E-09, E-12, E-20 and E-51.
4. The transparent fireproof coating system according to claim 1, wherein the solvent is any one or more of formaldehyde, ethanol, cyclohexanone, and n-butanol; the auxiliary agent is any one or more of a macromolecular block copolymer wetting dispersant containing pigment active affinity groups, a polyester modified polydimethylsiloxane surface auxiliary agent and a modified polyurea rheological auxiliary agent.
5. The transparent fireproofing coating system according to claim 1, wherein the preparation method of component A comprises the following steps in sequence:
(1) stirring the epoxy resin in cyclohexanone for 20-40 min until the epoxy resin is uniform and transparent; (2) adding pentaerythritol and a solvent into phosphoric acid, and stirring until full esterification is achieved; (3) mixing the epoxy resin, the liquid prepared in the step (2), the flame-retardant filler and the auxiliary agent, stirring for 10-15 min, grinding in a sand mill to obtain a powder with the fineness of less than or equal to 10 microns, filtering and packaging;
the preparation method of the component B sequentially comprises the following steps: (1) stirring melamine, urea and formaldehyde in a solvent, heating to 60-80 ℃, and starting a synthesis reaction until the mixture is uniform and transparent; (2) adding the flame-retardant filler and the auxiliary agent into the liquid prepared in the step (1), mixing, stirring for 10-15 min, grinding in a sand mill until the fineness is less than or equal to 10 mu m, filtering and packaging.
6. The transparent fire-retardant coating system according to claim 1, wherein the transparent protective coating is a one-component coating, and is prepared from the following components in parts by weight: 20-40 parts of fluororesin, 0.05-2 parts of coupling agent, 50-70 parts of solvent and 1-10 parts of auxiliary agent.
7. The transparent fire-retardant coating system according to claim 6, wherein the fluororesin has an intrinsic viscosity of 0.6 to 0.9 dl/g.
8. The transparent fire-retardant coating system according to claim 6, wherein the solvent is one or more selected from ethyl acetate, toluene, acetone, and butyl acetate.
9. Use of a transparent fire protection coating system according to any one of claims 1 to 8 in wood-structured ancient buildings.
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| CN113277884A (en) * | 2021-04-20 | 2021-08-20 | 福建省晋江市丹豪陶瓷有限公司 | High-temperature-resistant wear-resistant all-digital rock plate and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789349A (en) * | 2005-12-02 | 2006-06-21 | 袁雪祥 | Dedicated overprint varnish for fire retardant coating on steel structure and its production method |
| CN105907232A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Wood structure flame-retardant transparent paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789349A (en) * | 2005-12-02 | 2006-06-21 | 袁雪祥 | Dedicated overprint varnish for fire retardant coating on steel structure and its production method |
| CN105907232A (en) * | 2016-06-08 | 2016-08-31 | 四川卓安新材料科技有限公司 | Wood structure flame-retardant transparent paint |
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