CN110317510A - Fireproof coating of intumescent and preparation method thereof - Google Patents
Fireproof coating of intumescent and preparation method thereof Download PDFInfo
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- CN110317510A CN110317510A CN201910722958.4A CN201910722958A CN110317510A CN 110317510 A CN110317510 A CN 110317510A CN 201910722958 A CN201910722958 A CN 201910722958A CN 110317510 A CN110317510 A CN 110317510A
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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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- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
Present disclose provides a kind of fireproof coatings of intumescent, include: organic siloxane emulsion, binder resin lotion, carburization agent, flame-retardant intumescent agent, contain nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, Ricinate, coalescing agent and filler, and in fireproof coating, the mass percent of organic siloxane emulsion is 3% to 10%；The mass percent of binder resin lotion is 10% to 17%；The mass percent of carburization agent is 11% to 18%；The mass percent of flame-retardant intumescent agent is 20% to 30%；Mass percent containing nitrogen blowing agent is 10% to 20%；The mass percent of previous blowing agent is 0.3% to 0.6%；The mass percent of swelling agent is no more than 5%；The mass percent of defoaming agent is 0.2% to 0.4%；The mass percent of Ricinate is 0.5% to 1.5%；The mass percent of coalescing agent is 0.1% to 0.5%；The mass percent of filler is 10% to 25%.According to the disclosure, it is capable of providing a kind of fireproof coating for being able to extend fire resistance period and fire protecting performance is improved.
Description
Technical field
In particular to a kind of fireproof coating of intumescent of the disclosure and preparation method thereof.
Background technique
In building industry, by coating fireproof coating on the combustible material surface of building, it can effectively improve easily
The refractory ability of combustible material slows down propagation of flame propagation.This kind of fireproof coating is sometimes referred to as anti-flaming dope.Particularly, for building
Building mechanical strength, mechanical property of common building material such as steel etc. in object can reduce with the raising of temperature, be easy to lose
Its enabling capabilities is removed, building is caused to collapse.Therefore, flameproof protection is carried out for such material, such material can be effectively prevent
Material is brought rapidly up in a fire and reduces intensity, avoids losing enabling capabilities and building being caused to collapse.
A kind of fireproof coating and preparation method thereof suitable for steel construction is proposed in patent document (CN101205441A),
It is aided with filler and coalescing agent composition by polysiloxane, self-crosslinking polyacrylates multiple emulsion and fire proofing additive,
Wherein, fire proofing additive is ammonium polyphosphate, melamine phosphate, melamine and pentaerythrite；Filler is titanium dioxide, sepiolite
And alumina silicate fibre.In above-mentioned fireproof coating, each group distribution ratio is indicated with mass concentration are as follows: polysiloxane 2~
10wt%, self-crosslinking polyacrylates 10~18wt% of multiple emulsion, 19~35wt% of ammonium polyphosphate, melamine phosphate 1
~5wt%, 12~24wt% of melamine, 10~20wt% of pentaerythrite, 0.1~0.5wt% of previous blowing agent, titanium dioxide 1
~7wt%, 3~5wt% of sepiolite, 0.5~1wt% of alumina silicate fibre, 0.1~0.5wt% of coalescing agent.
However, although fireproof coating disclosed in above patent document makes moderate progress for the fire protecting performance of steel construction,
When actually occurring fire, such fireproof coating is formed by foam charring layer when burning there is foaming unevenness and and steels
The disadvantages of poor adhesive force of substrate, causes fireproof coating fire resistance period short, and fire protecting performance is not good enough.
Summary of the invention
The disclosure in view of the above-mentioned prior art situation and complete, when being able to extend fire resisting its purpose is to provide one kind
Between and the improvedd fireproof coating of intumescent of fire protecting performance.
For this purpose, on the one hand the disclosure provides a kind of fireproof coating of intumescent comprising: organic siloxane emulsion,
Binder resin lotion, flame-retardant intumescent agent, contains nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, wet dispersion at carburization agent
Agent, coalescing agent and filler, and in the fireproof coating, the poly- mass percent for having silicone emulsion be 3% to
10%；The mass percent of the binder resin lotion is 10% to 17%；The mass percent of the carburization agent be 11% to
18%；The mass percent of the flame-retardant intumescent agent is 20% to 30%；The mass percent containing nitrogen blowing agent is
10% to 20%；The mass percent of the previous blowing agent is 0.3% to 0.6%；The mass percent of the swelling agent is not
More than 5%；The mass percent of the defoaming agent is 0.2% to 0.4%；The mass percent of the Ricinate is
0.5% to 1.5%；The mass percent of the coalescing agent is 0.1% to 0.5%；The mass percent of the filler is
10% to 25%.
In the fireproof coating of the disclosure, especially organic siloxane emulsion have good heatproof oxidation performance can and it is low
Surface can, with binder resin lotion be formed together with good filming performance, heatproof oxidation performance energy, rheologic behavio(u)r film forming
Therefore substance enables the substrate (such as steel) of fireproof coating and building with stronger adhesion strength, and even if
In burning, film forming matter in a molten state also has good viscoplasticity, is not easy to fall off from substrate.In addition, the fire prevention applies
Carburization agent, flame-retardant intumescent agent in material contain nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, Ricinate, film forming
The collective effects such as auxiliary agent, filler make the film forming matter bubble expansion of melting be formed as foam charring layer as effective insulation every
Thermosphere extends the resistance to burning time of fireproof coating, to improve the fire protecting performance of fireproof coating.
In addition, optionally, the organic siloxane emulsion is in the fireproof coating involved in the one side of the disclosure
Change selected from aqueous emulsion of dimethyl polysiloxane fluid, epoxy-modified polysiloxane emulsion, amodimethicone lotion, carboxylic alkyl
At least one of property polysiloxane emulsion.Thereby, it is possible to form organic siloxane emulsion with binder resin lotion to have
The film forming matter of good filming performance.
In addition, optionally, the binder resin lotion includes certainly in the fireproof coating involved in the one side of the disclosure
Crosslinked polyacrylate, epoxy resin and polyurethane resin, and self-crosslinking polyacrylates, epoxy resin and polyurethane resin
Mass ratio be 3 ︰, 1 ︰, 1 to 10 ︰, 2 ︰ 1.Thereby, it is possible to so that binder resin lotion is preferably crosslinked shape with organic siloxane emulsion
At the film forming matter with good filming performance.
In addition, optionally, the swelling agent is precious selected from expansion in the fireproof coating involved in the one side of the disclosure
At least one of Zhu Yan, expanded graphite, expanded vermiculite, the granular size of the swelling agent are 300 to 600 mesh.Thereby, it is possible to
In burning help that film forming matter is enable to be formed by the heatproof oxidation performance that foam charring layer thickens and improves foam charring layer.
In addition, optionally, the Ricinate includes wet in the fireproof coating involved in the one side of the disclosure
Agent and dispersing agent, the wetting agent are multifunctional polymer alkylol ammonium salt solution, and the dispersing agent is total for high molecular weight block
Copolymer solution, and the mass ratio of the wetting agent and the dispersing agent is 1 ︰, 1.6 to 1 ︰ 2.8.Thereby, it is possible to do not reduce it is anti-
Mix the ingredient in fireproof coating more uniformly.
In addition, optionally, the defoaming agent is organosilicon defoaming in the fireproof coating involved in the one side of the disclosure
Agent or mineral oil antifoam agent.Thereby, it is possible to inhibit fireproof coating to generate bubble.
In addition, optionally, the filler includes preservative, urges in the fireproof coating involved in the one side of the disclosure
Agent, flame retardant, reinforcing agent and heat-barrier material, wherein the preservative is selected from aluminium hydroxide, modified oxidized iron, phosphoric acid
At least one of zinc, zinc borate, the catalyst are titanium dioxide, and the flame retardant is nano-sized magnesium hydroxide, the enhancing
Agent be selected from least one of sepiolite, alumina silicate fibre, hydrotalcite, the heat-barrier material be selected from hollow ceramic microspheres,
At least one of bead ball, silica.In this case, preservative can be improved fireproof coating and imitate to the anticorrosion of substrate
Fruit, catalyst can promote the formation of foam charring layer, and flame retardant can generate cooperative flame retardant effect, enhancing with expanded graphite
Agent can concerted catalysis effect and can as inorganic skeleton enhance foam charring layer, heat-barrier material can generate heat reflection effect
Can, thus, it is possible to effectively improve the fire protecting performance of fireproof coating.
In addition, in the fireproof coating involved in the one side of the disclosure, optionally, the preservative, the catalyst,
The mass ratio of the flame retardant, the reinforcing agent and the heat-barrier material is 5 ︰, 10 ︰, 30 ︰, 2 ︰, 5 to 5 ︰, 30 ︰, 45 ︰, 12 ︰ 10.By
This, can further increase the fire protecting performance of fireproof coating.
Another aspect of the present disclosure provides a kind of preparation method of the fireproof coating of intumescent comprising: (a) prepare poly-
Organosiloxane lotion, binder resin lotion, carburization agent, flame-retardant intumescent, containing nitrogen blowing agent, previous blowing agent, swelling agent, disappear
Infusion, Ricinate, coalescing agent and filler are as raw material；(b) by flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, fill out
Material, swelling agent, Ricinate, defoaming agent, organic siloxane emulsion and the mixing of binder resin lotion, form mixed liquor；And
And (c) previous blowing agent, coalescing agent and defoaming agent are added in the mixed liquor and are stirred, fireproof coating is formed, in institute
It states in fireproof coating, the mass percent of the organic siloxane emulsion is 3% to 10%；The matter of the binder resin lotion
Measuring percentage is 10% to 17%；The mass percent of the carburization agent is 11% to 18%；The matter of the flame-retardant intumescent agent
Measuring percentage is 20% to 30%；The mass percent containing nitrogen blowing agent is 10% to 20%；The previous blowing agent
Mass percent is 0.3% to 0.6%；The mass percent of the swelling agent is no more than 5%；The quality percentage of the defoaming agent
Number is 0.2% to 0.4%；The mass percent of the Ricinate is 0.5% to 1.5%；The quality of the coalescing agent
Percentage is 0.1% to 0.5%；The mass percent of the filler is 10% to 25%.
In another aspect of the present disclosure, above-mentioned raw materials are added by the mass percent according to regulation and are mixed,
Thereby, it is possible to obtain extending the resistance to burning time and improve the fireproof coating of fire protecting performance.
In addition, in the preparation method of the fireproof coating involved in another aspect of the present disclosure, optionally, in step (b)
In, Ricinate and defoaming agent are mixed to form the first mixed liquor first, being then added to gather in first mixed liquor has
Organic siloxane lotion and binder resin lotion are mixed, and are formed the second mixed liquor, are then added in second mixed liquor
Flame-retardant intumescent agent, contains nitrogen blowing agent, filler, swelling agent at carburization agent, forms the mixed liquor.In this case, it moistens and divides
Powder can first remove the moisture film and aqueous vapor of organic siloxane emulsion and binder resin lotion surface, be conducive in preparation process
Disperse the ingredient in fireproof coating, thus, it is possible to prepare the more good fireproof coating of fire protecting performance.
According to the disclosure, it is capable of providing a kind of extension fire resistance period and the fire prevention of intumescent that fire protecting performance is improved applies
Material and preparation method thereof.
Detailed description of the invention
Fig. 1 is to show the flow diagram of the preparation method of fireproof coating of intumescent involved in the disclosure.
Fig. 2 is the flow diagram that mixed liquor is formed in the preparation method for show fireproof coating shown in FIG. 1.
Specific embodiment
Hereinafter, explaining the preferred embodiment of the disclosure in detail with reference to attached drawing.In the following description, for identical
Component assign identical symbol, the repetitive description thereof will be omitted.Scheme in addition, attached drawing is only schematical, the mutual ruler of component
Very little shape of ratio or component etc. can be with actual difference.
In the present embodiment, the fireproof coating of intumescent may include: organic siloxane emulsion, binder resin cream
Liquid, flame-retardant intumescent agent, is helped containing nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, Ricinate, film forming carburization agent
Agent and filler.In fireproof coating, the poly- mass percent for having silicone emulsion can be 3% to 10%；Binder resin lotion
Mass percent can be 10% to 17%；The mass percent of carburization agent can be 11% to 18%；Flame-retardant intumescent agent
Mass percent can be 20% to 30%；Mass percent containing nitrogen blowing agent can be 10% to 20%；Foaming early period
The mass percent of agent can be 0.3% to 0.6%；The mass percent of swelling agent can be no more than 5%；The quality of defoaming agent
Percentage can be 0.2% to 0.4%；The mass percent of Ricinate can be 0.5% to 1.5%；Coalescing agent
Mass percent can be 0.1% to 0.5%；The mass percent of filler can be 10% to 25%.
The fireproof coating of intumescent involved in present embodiment, especially organic siloxane emulsion have good resistance to
Thermal oxidation and low-surface-energy are formed together with binder resin lotion with good filming performance, heatproof oxidation performance energy, stream
Become the film forming matter for learning performance, therefore, the substrate (such as steel) of fireproof coating and building is had stronger viscous
Knotting strength, and there is good viscoplasticity the film forming matter in a molten state in burning, it is not easy de- from substrate
It falls.In addition, carburization agent, flame-retardant intumescent agent in the fireproof coating, containing nitrogen blowing agent, previous blowing agent, swelling agent, defoaming
The collective effects such as agent, Ricinate, coalescing agent, filler make the film forming matter bubble expansion of melting be formed as foam charring layer
As effective insulation thermal insulation layer, extend the resistance to burning time of fireproof coating, to improve the fire protecting performance of fireproof coating.
In the present embodiment, filming performance is that the particle of film forming matter is instigated gradually to draw close to form irreversible phase mutual connection
Touching, then particle deformation is until reach the performance that closestpacking state forms film.In some instances, in film forming procedure,
Siloxanes in organic siloxane emulsion can respectively be crosslinked with the epoxy group in binder resin lotion, the production after crosslinking
Object can be used as film forming matter.
In some instances, organic siloxane emulsion can be for selected from aqueous emulsion of dimethyl polysiloxane fluid, epoxy-modified
At least one of polysiloxane emulsion, amodimethicone lotion, carboxylic alkyl modified polyorganosiloxane lotion.As a result,
Organic siloxane emulsion and binder resin lotion can be made to form the film forming matter with good filming performance.
In some instances, in fireproof coating, the poly- mass percent for having silicone emulsion can be 3% to 10%,
Such as the poly- mass percent for having silicone emulsion can be 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% etc..In addition,
In some instances, for the angle for forming better film forming matter, it is preferable that poly- to have the mass percent of silicone emulsion
Think 5% to 8%.
In some instances, binder resin lotion may include self-crosslinking polyacrylates, epoxy resin and polyurethane tree
Rouge, and the mass ratio of self-crosslinking polyacrylates, epoxy resin and polyurethane resin can be 3 ︰, 1 ︰, 1 to 10 ︰, 2 ︰ 1.As a result,
Binder resin lotion can be made preferably to be cross-linked to form the film forming matter with good filming performance with organic siloxane emulsion
Matter.In addition, in some instances, it is preferable that the mass ratio of self-crosslinking polyacrylates, epoxy resin and polyurethane resin can be with
For 3 ︰, 1 ︰, 1 to 5 ︰, 1 ︰ 1.
In some instances, in fireproof coating, the mass percent of binder resin lotion can be 10% to 17%, example
Such as mass percent of binder resin lotion can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%.Separately
Outside, in some instances, it is preferable that for the angle for forming better film forming matter, the mass percent of binder resin lotion
It can be 11% to 13%.
In some instances, binder resin lotion can by self-crosslinking polyacrylates, epoxy resin and polyurethane resin,
And the mass ratio of self-crosslinking polyacrylates, epoxy resin and polyurethane resin can be 3 ︰, 1 ︰, 1 to 10 ︰, 2 ︰ 1.
In some instances, organic siloxane emulsion and binder resin lotion can be collectively formed as film forming matter.Its
In, film forming matter discharges gas bubble expansion by the decomposition of foaming agent after can melting and is formed as foam charring layer.In addition,
In some instances, the melting temperature of film forming matter can be according to the ratio between organic siloxane emulsion and binder resin lotion
Example is different and has different melting temperatures.Specifically, can be 250 DEG C to 400 DEG C.For example, the melting temperature of film forming matter
Degree can be 250 DEG C, 280 DEG C, 300 DEG C, 330 DEG C, 350 DEG C, 380 DEG C, 400 DEG C etc..Furthermore it is preferred that for preferably with
The decomposition temperature of foaming agent cooperatively forms the angle of good foam charring layer, and the melting temperature of film forming matter can be 300 DEG C
To 350 DEG C.
In some instances, the viscosity when melting of film forming matter can be 20dPa.s to 60dPa.s.For example, film forming matter
The viscosity when melting of matter can be melted according to organic siloxane emulsion and the molecular weight of binder resin lotion with different
Melt-viscosity.Specifically, can for 20dPa.s, 22dPa.s, 25dPa.s, 28dPa.s, 30dPa.s, 32dPa.s,
35dPa.s, 38dPa.s, 40dPa.s, 50dPa.s, 60dPa.s etc..In addition, in some instances, it is preferable that more for formation
The angle of good foam charring layer, the viscosity when melting of film forming matter can be 35dPa.s to 40dPa.s.
In the present embodiment, the processes such as film forming matter melting expansion, carburization agent decomposition can absorb heat from the external world, from
And the temperature near substrate surface is reduced, facilitate fire prevention cooling.
In some instances, carburization agent can be for selected from pentaerythrite, dipentaerythritol, tripentaerythritol, poly- Ji Wusi
At least one of multivalence alcohol such as alcohol, triethylene glycol, D-sorbite, glycerine, three methanol methane, trihydroxymethyl propane, diethylene glycol (DEG).By
This, carburization agent can be dehydrated at high temperature to be formed fire retardant skeleton foam charring layer is made to be formed as loose structure.
In some instances, in fireproof coating, the mass percent of carburization agent can be 11% to 18%, such as be carbonized
The mass percent of agent can be 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18% etc..In addition, in some examples
In, it is preferable that for the angle for forming better foam charring layer, the mass percent of carburization agent can be 13% to 17%.
In some instances, fireproof coating may include a variety of foaming agents.Thereby, it is possible to preferably form foam charing
Layer.For example, fireproof coating may include flame-retardant intumescent agent, containing nitrogen blowing agent and previous blowing agent namely flame-retardant intumescent agent,
It can be collectively as the foaming agent of fireproof coating containing nitrogen blowing agent and previous blowing agent.In addition, in some instances, foaming agent
Decomposition temperature is matched with the melting temperature of film forming matter, in other words, the decomposition temperature of foaming agent and the melting temperature of film forming matter
Close, thereby, it is possible to make foaming agent that the film forming matter of molten condition are formed as foam charring layer in time.In addition, fire prevention applies
Foaming agent, which decomposes the fire retardant gas released, in material can dilute the oxygen concentration of substrate surface, so as to reduce combustion-supporting oxygen
Gas, and then improve flame retardant effect.
In some instances, flame-retardant intumescent agent may include high polymerization degree APP, melamine phosphate.At this
In the case of kind, melamine phosphate has good at carbon performance and foam performance, and can reduce the poly- phosphorus of high polymerization degree
Sour ammonium is precipitated after being dissolved in water.Thereby, it is possible to advantageously form good foam charring layer, and then it can be improved fireproof coating
Fire protecting performance.
In some instances, the degree of polymerization (DP) of high polymerization degree APP can be 100 to 1100.For example, high polymerization
The degree of polymerization for spending ammonium polyphosphate can be 100,200,300,400,500,600,700,800,900,1000,1100 etc..One
In a little examples, it is preferable that for the angle for forming better foam charring layer, the degree of polymerization of high polymerization degree APP can be
1000 to 1100.
In some instances, in flame-retardant intumescent agent, the quality of high polymerization degree APP and melamine phosphate
Than that can be 1 ︰, 1 to 1 ︰ 2.For example, the mass ratio of high polymerization degree APP and melamine phosphate can be 1 ︰ 1,1 ︰
1.2,1 ︰ 1.5,1 ︰ 1.8,1 ︰ 2 etc..
In some instances, the mass percent of flame-retardant intumescent agent can be 20% to 30%, such as flame-retardant intumescent
The mass percent of agent can be 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30% etc..
In addition, in some instances, it is preferable that for the angle for forming better foam charring layer, the quality hundred of flame-retardant intumescent agent
Score can be 22% to 24%.
In some instances, flame-retardant intumescent agent can be made of high polymerization degree APP, melamine phosphate.
In some instances, urea, urea-formaldehyde, melamine, melamine-butyl, three can be selected from containing nitrogen blowing agent
At least one of nitrogenous compounds such as hydroxymethyl melamine, amion acetic acid.It in this case, can containing nitrogen blowing agent
Fire retardant gas (such as nitrogen, carbon dioxide) is decomposited at high temperature, is played the role of foaming and intumescing and is formed good foam
Charring layer, and a large amount of fire retardant gases can water down oxygen gas component, reduce combustion-supporting oxygen, and then improve flame retardant effect, by
This can further increase the fire protecting performance of fireproof coating.In addition, in some instances, it is preferable that can be containing nitrogen blowing agent
Melamine.
In some instances, in fireproof coating, the mass percent containing nitrogen blowing agent can be 10% to 20%, such as
Mass percent containing nitrogen blowing agent can for 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%,
19%, 19.5%, 20% etc..In addition, in some instances, for the angle for forming better foam charring layer, it is preferable that contain
The mass percent of nitrogen blowing agent can be 15% to 18%.
In some instances, previous blowing agent can selected from optional chlorinated paraffin, azodicarbonamide, ammonium dihydrogen phosphate,
At least one of microcapsule-type foaming agent.In this case, it can be improved the foaming that fireproof coating is heated early period, make foam
Charring layer is closely knit to be thickened, so as to improve fire endurance.In addition, previous blowing agent can reduce foam charring layer due to film forming
The caused cavity of material melts trickling, advantageously forms uniform foam charring layer.
In some instances, in fireproof coating, the mass percent of previous blowing agent can be 0.3% to 0.6%, example
As previous blowing agent mass percent can for 0.3%, 0.32%, 0.35%, 0.38%, 0.4%, 0.42%, 0.45%,
0.48%, 0.5%, 0.55%, 0.6% etc..In addition, in some instances, for the angle for forming better foam charring layer,
Preferably, the mass percent of previous blowing agent can be 0.35% to 0.4%.
In some instances, swelling agent can be at least one in expanded perlite, expanded graphite, expanded vermiculite
Kind, the granular size of swelling agent can be 300 mesh to 600 mesh.Thereby, it is possible to help to form film forming matter in burning
Foam charring layer thicken and improve the heatproof oxidation performance energy of foam charring layer.In addition, the expansion ratio of swelling agent is high.In addition,
Swelling agent can be improved the toughness of foam charring layer, and thus, it is possible to preferably bear the impact such as firepower, wind-force.
In some instances, the granular size of swelling agent can be 300 mesh, 350 mesh, 400 mesh, 450 mesh, 500 mesh, 550
Mesh, 600 mesh etc..Furthermore it is preferred that for the angle for forming better foam charring layer, the granular size of swelling agent can be
500 mesh to 600 mesh.
In some instances, in fireproof coating, the mass percent of swelling agent can be no more than 5%, such as swelling agent
Mass percent can be 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% etc..Another
In a little examples, for the angle for forming better foam charring layer, it is preferable that the mass percent of swelling agent can for 3% to
5%.In addition, can not include swelling agent in fireproof coating in some instances.
In some instances, Ricinate may include wetting agent and dispersing agent, and wetting agent can be multifunctional polymerization
Object alkylol ammonium salt solution, dispersing agent can be high molecular weight block copolymer solution, and the quality of wetting agent and dispersing agent
Than that can be 1 ︰, 1.6 to 1 ︰ 2.8.Thereby, it is possible to make in fireproof coating in the case where not reducing the water resistance of fireproof coating
Ingredient more uniformly mixes.For example, the mass ratio of wetting agent and dispersing agent can for 1 ︰ 1.6,1 ︰ 1.8,1 ︰ 2.0,1 ︰ 2.2,
1 ︰ 2.4,1 ︰ 2.6,1 ︰ 2.8 etc..In addition, in some instances, for the angle for forming better Ricinate, it is preferable that
The mass ratio of wetting agent and dispersing agent can be 1 ︰, 2.0 to 1 ︰ 2.6.
In some instances, in fireproof coating, the mass percent of Ricinate can be 0.5% to 1.5%, example
The mass percent of such as Ricinate can be 0.5%, 0.8%, 1%, 1.2%, 1.5%.In addition, in some examples
In, for the angle for forming each component in preferably dispersion fireproof coating, it is preferable that the mass percent of Ricinate can be with
It is 0.8% to 1.2%.
In some instances, Ricinate can be made of wetting agent and dispersing agent, and wetting agent and dispersing agent
Mass ratio can be 1 ︰, 1.6 to 1 ︰ 2.8.
In some instances, optionally, defoaming agent is organic silicon defoamer or mineral oil antifoam agent.Thereby, it is possible to inhibit
Fireproof coating generates bubble.In some instances, organic silicon defoamer can be to disappear selected from dimethicone, long-chain alkyl-silicone oil
One of infusion, fluorohydrocarbon base silicone oil, polyether silicone oil.
In some instances, in fireproof coating, the mass percent of defoaming agent can be 0.2% to 0.4%, such as disappear
The mass percent of infusion can be 0.2%, 0.22%, 0.25%, 0.3%, 0.32%, 0.35%, 0.4% etc..In addition,
In some examples, for the angle that can preferably inhibit fireproof coating to generate bubble, it is preferable that the mass percent of defoaming agent
It can be 0.25% to 0.3%.
In some instances, coalescing agent can be selected from 2,2,4- trimethyl -1,3- pentanediols-acrylic acid Dan Jia, the third two
At least one of alcohol, dipropylene glycol methyl ether, dipropylene.Thereby, it is possible to further improve the film forming of fireproof coating
Energy.
In some instances, in fireproof coating, the mass percent of coalescing agent can be 0.1% to 0.5%, such as
The mass percent of coalescing agent can be 0.1%, 0.2%, 0.3%, 0.4%, 0.5% etc..In addition, in some instances,
For forming the angle for preferably improving the filming performance of fireproof coating, it is preferable that the mass percent of coalescing agent can be
0.2% to 0.4%.
In some instances, optionally, filler includes preservative, catalyst, flame retardant, reinforcing agent and heat-barrier material,
Wherein preservative is selected from least one of aluminium hydroxide, modified oxidized iron, trbasic zinc phosphate, zinc borate, and catalyst is titanium dioxide,
Flame retardant is nano-sized magnesium hydroxide, reinforcing agent be selected from least one of sepiolite, alumina silicate fibre, hydrotalcite, it is heat-insulated
Material is selected from least one of hollow ceramic microspheres, bead ball, silica.In this case, preservative can be improved
Fireproof coating can promote the formation of foam charring layer to the anticorrosion ability of substrate, catalyst, and flame retardant can be with expansion
Graphite generate cooperative flame retardant effect, reinforcing agent can concerted catalysis effect and can as inorganic skeleton enhancing foam charing
Layer, heat-barrier material can generate heat reflection efficiency, and thus, it is possible to effectively improve the fire protecting performance of fireproof coating.In addition, fire prevention
Coating is capable of forming the foam charring layer of insulation, and heat transfer can either be blocked by being covered in substrate surface, and being capable of block oxygen.
In some instances, catalyst can also be zinc oxide.In addition, in some instances, aluminium hydroxide can also be made
For flame retardant.
In some instances, the mass percent of filler can be 10% to 25%, such as the mass percent of filler can
Think 10%, 12%, 15%, 18%, 20%, 22%, 25% etc..In addition, in some instances, for the better foam of formation
The angle of charring layer, it is preferable that the mass percent of filler can be 10% to 15%.
In some instances, the mass ratio of preservative, catalyst, flame retardant, reinforcing agent and heat-barrier material can be 5 ︰
10 ︰, 30 ︰, 2 ︰, 5 to 5 ︰, 30 ︰, 45 ︰, 12 ︰ 10.Thereby, it is possible to further increase the fire protecting performance of fireproof coating.
In some instances, fireproof coating can also include pigment.In this case, fireproof coating can either be made to show
Decorative color, and the physics of fireproof coating, chemical property can be improved.In some instances, pigment can be for selected from titanium
White powder, zinc oxide, lithopone, iron oxide, lead chromate yellow, zinc yellow, cadmium yellow, iron oxide yellow, iron oxide black, chrome oxide green, chrome green, cobalt blue,
At least one of resistance to sunburn of ultramarine, carbon black, phthalocyanine blue, alcohol-soluble.
In some instances, filler can be made of preservative, catalyst, flame retardant, reinforcing agent and heat-barrier material.
In some instances, fireproof coating can be by organic siloxane emulsion, binder resin lotion, carburization agent, fire-retardant
Property foaming agent, containing nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, Ricinate, coalescing agent and filler composition.
In some instances, the viscosity of fireproof coating can be 30dPa.s to 100dPa.s.For example, fireproof coating is viscous
Degree can for 30dPa.s, 32dPa.s, 35dPa.s, 38dPa.s, 40dPa.s, 45dPa.s, 50dPa.s, 55dPa.s,
60dPa.s, 65dPa.s, 70dPa.s, 75dPa.s, 80dPa.s, 90dPa.s, 100dPa.s etc..In addition, in some instances,
For the more preferable angle for being coated on substrate surface, it is preferable that the viscosity of fireproof coating can be with 35dPa.s to 40dPa.s.
In some instances, the adhesion strength of fireproof coating can be 0.2MPa to 0.8MPa.For example, fireproof coating is viscous
Knotting strength can for 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa,
0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa etc..
In some instances, fireproof coating can pass through the modes such as dip-coating, showering, paint painting, spin coating, brushing, spraying, blade coating
Coated on substrate surface.In addition, in some instances, the substrate of fireproof coating coating can be steel construction.
In some instances, steel construction can first be surface-treated steel construction before coating fireproof coating.For example,
Oil removing, derusting etc. can be carried out to the surface of steel construction.It in some instances, can be by selecting No. 200 white spirits, pines
At least one of fuel-economizing, trichloro ethylene, tetrachloro-ethylene, carbon tetrachloride, methylene chloride, trichloroethanes, trifluorotrichloroethane come
The greasy dirt on the surface of steel construction is removed, thus, it is possible to enhance fireproof coating to the adhesive force of steel construction.In addition, in some examples
In, the method for derusting includes manual grinding derusting, mechanical derusting etc..Thereby, it is possible to remove the rust deposite of steel structure surface, Jin Eryan
The service life of long fireproof coating.
In some instances, for fireproof coating when the coating layer thickness of steel structure surface is 2mm, the thickness of foam charring layer can
Think that 30mm to 50mm, fire resistance period can be 90 minutes to 120 minutes.For example, coating of the fireproof coating in steel structure surface
When with a thickness of 2mm, the thickness of foam charring layer can be 50mm, and fire resistance period can be 120 minutes etc..
Expansile fireproof coating involved in present embodiment does not discharge when forming foam charring layer by high-temperature expansion
Pernicious gas or ingredient, and foam charring layer has low thermal conductivity as insulation thermal insulation layer, can function well as heat-insulated effect
Fruit.
Fig. 1 is to show the flow diagram of the preparation method of fireproof coating of intumescent involved in the disclosure.Fig. 2 is
Show the flow diagram that mixed liquor is formed in the preparation method of fireproof coating shown in FIG. 1.
As shown in Figure 1, in the present embodiment, the preparation method of the fireproof coating of intumescent may include: to prepare to gather to have
Organic siloxane lotion, carburization agent, flame-retardant intumescent, contains nitrogen blowing agent, previous blowing agent, swelling agent, defoaming at binder resin lotion
Agent, Ricinate, coalescing agent and filler are as raw material (step S10)；By flame-retardant intumescent agent, carburization agent, nitrogenous foaming
Agent, filler, swelling agent, Ricinate, defoaming agent, organic siloxane emulsion and the mixing of binder resin lotion, form mixing
Liquid (step S20)；And previous blowing agent, coalescing agent and defoaming agent are added in mixed liquor and are stirred, fire prevention is formed and applies
Expect (step S30).
In the preparation method of the fireproof coating of the intumescent involved in present embodiment, pass through the quality hundred according to regulation
Score addition above-mentioned raw materials are simultaneously mixed, and thereby, it is possible to obtain extending the resistance to burning time and improve the fire prevention painting of fire protecting performance
Material.
In some instances, the formula of fireproof coating can be with are as follows: in fireproof coating, the quality of organic siloxane emulsion
Percentage is 3% to 10%；The mass percent of binder resin lotion is 10% to 17%；The mass percent of carburization agent is
11% to 18%；The mass percent of flame-retardant intumescent agent is 20% to 30%；Mass percent containing nitrogen blowing agent is 10%
To 20%；The mass percent of previous blowing agent is 0.3% to 0.6%；The mass percent of swelling agent is no more than 5%；Defoaming
The mass percent of agent is 0.2% to 0.4%；The mass percent of Ricinate is 0.5% to 1.5%；Coalescing agent
Mass percent is 0.1% to 0.5%；The mass percent of filler is 10% to 25%.Wherein, filler may include anti-corrosion
Agent, catalyst, flame retardant, reinforcing agent and heat-barrier material.
In some instances, in step slo, organic siloxane emulsion, base-material tree can be weighed according to above-mentioned formula
Fat liquor, flame-retardant intumescent, contains nitrogen blowing agent, previous blowing agent, swelling agent, defoaming agent, Ricinate, film forming at carburization agent
Auxiliary agent and filler are as raw material.
In some instances, before step S20, defoaming agent first can be divided into two parts, is respectively used to step S20 and step
In S30.In addition, in some instances, the ratio of defoaming agent used in step S20 and step S30 can be 2 ︰, 3 to 1 ︰ 1.
In some instances, as shown in Fig. 2, in step S20, Ricinate and defoaming agent are mixed to form the first
One mixed liquor (step S21) is then added organic siloxane emulsion in the first mixed liquor and binder resin lotion is mixed
It closes, forms the second mixed liquor (step S22), flame-retardant intumescent agent, carburization agent, nitrogenous foaming are then added in the second mixed liquor
Agent, filler and swelling agent are formed mixed liquor (step S23).In this case, Ricinate can first remove poly-organosilicon
The moisture film and aqueous vapor of oxygen alkane lotion and binder resin lotion surface are conducive to the ingredient dispersed in fireproof coating in preparation process,
Thus, it is possible to prepare the more good fireproof coating of fire protecting performance.
In some instances, in the step s 21, Ricinate can form first by stirring with defoaming agent and mix
Liquid.For example, Ricinate and defoaming agent can be placed in high speed disperser rapid dispersion (quickly stirring) specific time.In addition,
In some instances, the specific time of high speed disperser rapid dispersion can be 15 minutes to 25 minutes, and high speed disperser turns
Speed can be 1000r/min to 1500r/min.Such as the specific time of high speed disperser rapid dispersion can be 15 minutes, 18
Minute, 20 minutes, 22 minutes or 25 minutes, the revolving speed of high speed disperser can be 1000r/min, 1100r/min, 1200r/
Min, 1300r/min, 1400r/min, 1500r/min etc..
In some instances, in step S22, organic siloxane emulsion and binder resin are added in the first mixed liquor
Lotion can form the second mixed liquor by stirring.In addition, in some instances, polysiloxane is added in the first mixed liquor
Lotion and binder resin lotion is agitated can form the second uniformly mixed mixed liquor.
It in some instances, can be first by flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, filler before step S23
Successively grind, mix with swelling agent, wherein when filler is ground, by preservative, flame retardant, catalyst, reinforcing agent,
Heat-barrier material successively grinds, mixes.For example, can by flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, preservative, fire-retardant help
Agent, catalyst, reinforcing agent, heat-barrier material, swelling agent, which are sequentially placed into ball mill, to be ground and is uniformly mixed.In addition, one
In a little examples, can by flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, preservative, flame retardant, catalyst, reinforcing agent,
Heat-barrier material, swelling agent are ground respectively, are then remixed uniformly.In addition, in the present embodiment, flame-retardant intumescent agent,
Carburization agent, successively ground containing nitrogen blowing agent, preservative, flame retardant, catalyst, reinforcing agent, heat-barrier material and swelling agent it is suitable
Sequence is without being limited thereto, can arbitrarily sort.
In some instances, in step S23, flame-retardant intumescent agent can be added in the second mixed liquor, carburization agent, contain
After nitrogen blowing agent, filler and swelling agent, mixed liquor is formed by stirring or grinding.For example, in step S23, it can be second
After flame-retardant intumescent agent, carburization agent are added in mixed liquor, contains nitrogen blowing agent, filler, swelling agent, mixed liquor is formed by stirring.
In some instances, in step S23, can be added in the second mixed liquor by flame-retardant intumescent agent, carburization agent,
It is ground containing nitrogen blowing agent, filler and swelling agent and after mixed feed powder, then grinding the predetermined time in grinder forms mixing
Liquid forms mixed liquor in high speed disperser high speed dispersion (stirring) predetermined time.
In other examples, the predetermined time of stirring or grinding can be 15 minutes to 25 minutes, for example, stirring or grinding
The predetermined time of mill can be 15 minutes, 18 minutes, 20 minutes, 22 minutes or 25 minutes.In addition, the revolving speed of high speed disperser can
Think 2000r/min, 2100r/min, 2200r/min, 2300r/min, 2400r/min, 2500r/min etc..
In some instances, in step s 30, in mixed liquor, be added previous blowing agent, coalescing agent and defoaming agent into
Row stirring can form uniformly mixed fireproof coating.For example, can be stirred in high speed disperser until uniformly.
In some instances, in step s 30, the flame-retardant intumescent agent that do not grind, carbon can also be added in mixed liquor
Agent contains nitrogen blowing agent, filler and swelling agent.
According to the disclosure, it is capable of providing a kind of extension fire resistance period and the fire prevention of intumescent that fire protecting performance is improved applies
Material and preparation method thereof.
In order to further illustrate the disclosure, with reference to embodiments to the disclosure provide intumescent fireproof coating and its
Preparation method is described in detail, and the beneficial effect realized in conjunction with comparative example to the disclosure absolutely proves.
[embodiment]
In embodiment of the disclosure 1 into embodiment 5, for the raw material for preparing of fireproof coating, with polydimethylsiloxanes
Alkane lotion is as organic siloxane emulsion, self-crosslinked polyacrylic emulsion, epoxy resin latex and ester-polyurethane resin emulsion
Mixing is used as binder resin lotion, and pentaerythrite is as carburization agent, high polymerization degree APP (DP=1000) and melamine
Phosphate is mixed into flame-retardant intumescent agent, and melamine, which is used as, contains nitrogen blowing agent, and chlorinated paraffin expands stone as previous blowing agent
Ink is used as swelling agent, and propylene glycol is as coalescing agent, multifunctional polymer alkylol ammonium salt solution and high molecular weight block copolymerization
Object solution is as Ricinate, and aluminium hydroxide, modified oxidized iron, trbasic zinc phosphate and zinc borate are as preservative, nanometer hydroxide
Magnesium is as flame retardant, titanium dioxide as catalyst, and hollow ceramic microspheres are as reinforcing agent, and sepiolite is as heat-barrier material.
In addition, in above-mentioned fireproof coating, self-crosslinked polyacrylic emulsion, epoxy resin latex and polyurethane resin cream
The mass ratio of liquid is 4 ︰, 1 ︰ 1, and the mass ratio of high polymerization degree APP (DP=1000) and melamine phosphate is 1:1, wet
The mass ratio for moistening agent and dispersing agent is 1:2, preservative, catalyst, flame retardant, reinforcing agent and heat-barrier material mass ratio be 1:
2:6:0.4:1, wherein aluminium hydroxide, modified oxidized iron, trbasic zinc phosphate and zinc borate mass ratio be 2:2:1:0.5.
In each embodiment of embodiment 1 to embodiment 5, firstly, quasi- according to each component is weighed by the proportion in table 1
Prepare standby raw material, total mass of raw material 100kg.Then, by raw material Ricinate, 50% organic silicon defoamer in height
Fast dispersion machine disperses 20 minutes, revolving speed 1200r/min, and organic siloxane emulsion and binder resin lotion are added after being sufficiently mixed
And mixed, emulsified material is formed until being uniformly mixed.Simultaneously by 50% flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, anti-
Rotten agent, flame retardant, catalyst, reinforcing agent, heat-barrier material and swelling agent are added sequentially to carry out grinding in ball mill 2 small
When, it is uniformly mixed and forms powder.Then, sand mill is added in emulsified material and powder, grinds 20min, add the resistance of residue 50%
Combustion property foaming agent, contains nitrogen blowing agent, preservative, flame retardant, catalyst, reinforcing agent, heat-barrier material and swelling agent at carburization agent,
And the organic silicon defoamer of previous blowing agent, coalescing agent and residue 50%, it is sufficiently stirred, until uniformly, finally being prevented
Fiery coating sample.
Fireproof coating sample 5kg of the Example 1 into embodiment 5 respectively, and above-mentioned fireproof coating is coated in steel
Surface, rear coating layer thickness to be dried is 3mm.Then, respectively from adhesion strength, foam charing thickness degree, fire resistance period etc.
To the fireproof coating as prepared by formula of the embodiment 1 to embodiment 5 according to construction steel structure fireproofing technique specification GB51249-
2017 test method is tested.The results are shown in Table 3 for test.
Table 1 prepares the raw material proportioning of fireproof coating
[comparative example]
For comparative example 1 to comparative example 5 compared with above-described embodiment, difference is comparative example 1 into comparative example 5 by institute in table 2
The proportion shown is come the raw material for preparing that weighs each component as fireproof coating, in addition to this, according to the identical mode of embodiment into
The preparation of row fireproof coating.
Similarly, fireproof coating sample 5kg of the comparative example 1 into comparative example 5 is taken respectively, and above-mentioned fireproof coating is coated
In steel surface, rear coating layer thickness to be dried is 3mm.Then, thickness degree, fire resistance period are carbonized from adhesion strength, foam respectively
Etc. to the fireproof coating as prepared by formula of the comparative example 1 to comparative example 5 according to construction steel structure fireproofing technique specification
The test method of GB51249-2017 is tested.The results are shown in Table 3 for test.
Table 2 prepares the raw material proportioning of fireproof coating
The fire protecting performance of 3 fireproof coating of table
From table 3 it can be seen that embodiment, compared with comparative example, fireproof coating of the embodiment 1 into embodiment 5 has bonding
The advantages of intensity is big, fire resistance period is long, expansion multiple high (i.e. foam charing thickness degree is big), therefore, the fire prevention in embodiment applies
The fire protecting performance of material is preferable and not easily to fall off, is able to extend fire resistance period, to be obviously improved fire protecting performance.In above-described embodiment
In, embodiment 3 has optimal comprehensive performance in fire protecting performance.
In contrast, fireproof coating of the comparative example 1 into comparative example 5 can not combine adhesion strength, fire resistance period
And expansion multiple, it is unable to reach the fire protecting performance of fireproof coating of the above-described embodiment 1 into embodiment 5.
Although above combine drawings and embodiments the disclosure is illustrated, it will be appreciated that on state
It is bright not limit the disclosure in any form.Those skilled in the art are without departing from the connotation and range of the disclosure
It can according to need and the disclosure is deformed and is changed, these deformations and variation are each fallen in the scope of the present disclosure.
Claims (10)
1. a kind of fireproof coating of intumescent, it is characterised in that:
Include: organic siloxane emulsion, binder resin lotion, carburization agent, flame-retardant intumescent agent, contain nitrogen blowing agent, hair early period
Infusion, swelling agent, defoaming agent, Ricinate, coalescing agent and filler, and
In the fireproof coating, the mass percent of the organic siloxane emulsion is 3% to 10%；
The mass percent of the binder resin lotion is 10% to 17%；
The mass percent of the carburization agent is 11% to 18%；
The mass percent of the flame-retardant intumescent agent is 20% to 30%；
The mass percent containing nitrogen blowing agent is 10% to 20%；
The mass percent of the previous blowing agent is 0.3% to 0.6%；
The mass percent of the swelling agent is no more than 5%；
The mass percent of the defoaming agent is 0.2% to 0.4%；
The mass percent of the Ricinate is 0.5% to 1.5%；
The mass percent of the coalescing agent is 0.1% to 0.5%；
The mass percent of the filler is 10% to 25%.
2. fireproof coating as described in claim 1, it is characterised in that:
The organic siloxane emulsion is selected from aqueous emulsion of dimethyl polysiloxane fluid, epoxy-modified polysiloxane emulsion, amino
At least one of dimethyl polysiloxane emulsion, carboxylic alkyl modified polyorganosiloxane lotion.
3. fireproof coating as described in claim 1, it is characterised in that:
The binder resin lotion includes self-crosslinking polyacrylates, epoxy resin and polyurethane resin, and self-crosslinking poly- third
The mass ratio of olefin(e) acid ester, epoxy resin and polyurethane resin is 3 ︰, 1 ︰, 1 to 10 ︰, 2 ︰ 1.
4. fireproof coating as described in claim 1, it is characterised in that:
The swelling agent is selected from least one of expanded perlite, expanded graphite, expanded vermiculite, the particle of the swelling agent
Size is 300 to 600 mesh.
5. fireproof coating as described in claim 1, it is characterised in that:
The Ricinate includes wetting agent and dispersing agent, and the wetting agent is multifunctional polymer alkylol ammonium salt solution,
The dispersing agent is high molecular weight block copolymer solution, and
The mass ratio of the wetting agent and the dispersing agent is 1 ︰, 1.6 to 1 ︰ 2.8.
6. fireproof coating as described in claim 1, it is characterised in that:
The defoaming agent is organic silicon defoamer or mineral oil antifoam agent.
7. fireproof coating as described in claim 1, it is characterised in that:
The filler includes preservative, catalyst, flame retardant, reinforcing agent and heat-barrier material, wherein the preservative be selected from
At least one of aluminium hydroxide, modified oxidized iron, trbasic zinc phosphate, zinc borate, the catalyst are titanium dioxide, the flame retardant
For nano-sized magnesium hydroxide, the reinforcing agent be selected from least one of sepiolite, alumina silicate fibre, hydrotalcite, it is described heat-insulated
Material is selected from least one of hollow ceramic microspheres, bead ball, silica.
8. fireproof coating as claimed in claim 7, it is characterised in that:
The preservative, the catalyst, the flame retardant, the reinforcing agent and the heat-barrier material mass ratio be 5 ︰
10 ︰, 30 ︰, 2 ︰, 5 to 5 ︰, 30 ︰, 45 ︰, 12 ︰ 10.
9. a kind of preparation method of expanding fire-proof paint, it is characterised in that:
Include:
(a) prepare organic siloxane emulsion, binder resin lotion, carburization agent, flame-retardant intumescent, contain nitrogen blowing agent, hair early period
Infusion, swelling agent, defoaming agent, Ricinate, coalescing agent and filler are as raw material；
(b) by flame-retardant intumescent agent, carburization agent, containing nitrogen blowing agent, filler, swelling agent, Ricinate, defoaming agent, gather it is organic
Silicone emulsion and the mixing of binder resin lotion, form mixed liquor；And
(c) previous blowing agent, coalescing agent and defoaming agent are added in the mixed liquor and are stirred, form fireproof coating,
In the fireproof coating, the mass percent of the organic siloxane emulsion is 3% to 10%；
The mass percent of the binder resin lotion is 10% to 17%；
The mass percent of the carburization agent is 11% to 18%；
The mass percent of the flame-retardant intumescent agent is 20% to 30%；
The mass percent containing nitrogen blowing agent is 10% to 20%；
The mass percent of the previous blowing agent is 0.3% to 0.6%；
The mass percent of the swelling agent is no more than 5%；
The mass percent of the defoaming agent is 0.2% to 0.4%；
The mass percent of the Ricinate is 0.5% to 1.5%；
The mass percent of the coalescing agent is 0.1% to 0.5%；
The mass percent of the filler is 10% to 25%.
10. preparation method as claimed in claim 9, it is characterised in that:
In step (b), Ricinate and defoaming agent are mixed to form the first mixed liquor first, then in first mixing
Organic siloxane emulsion is added in liquid and binder resin lotion is mixed, the second mixed liquor is formed, then described second
Flame-retardant intumescent agent is added in mixed liquor, carburization agent, contains nitrogen blowing agent, filler, swelling agent, forms the mixed liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722958.4A CN110317510B (en) | 2019-08-06 | 2019-08-06 | Intumescent fire-retardant coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910722958.4A CN110317510B (en) | 2019-08-06 | 2019-08-06 | Intumescent fire-retardant coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110317510A true CN110317510A (en) | 2019-10-11 |
| CN110317510B CN110317510B (en) | 2022-03-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023046825A1 (en) * | 2021-09-27 | 2023-03-30 | Covestro Deutschland Ag | Composition for thermal insulation |
| EP4177230A1 (en) * | 2021-11-03 | 2023-05-10 | Covestro Deutschland AG | Composition for thermal insulation |
| CN116355527A (en) * | 2023-03-20 | 2023-06-30 | 河南联防科技防火材料有限公司 | Intumescent inorganic environment-friendly fireproof coating and preparation method thereof |
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| EP4177230A1 (en) * | 2021-11-03 | 2023-05-10 | Covestro Deutschland AG | Composition for thermal insulation |
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| CN110317510B (en) | 2022-03-25 |
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