CN111073432A - Preparation method of super-fire-resistant water-based intumescent fire-retardant coating - Google Patents
Preparation method of super-fire-resistant water-based intumescent fire-retardant coating Download PDFInfo
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- CN111073432A CN111073432A CN201911337302.7A CN201911337302A CN111073432A CN 111073432 A CN111073432 A CN 111073432A CN 201911337302 A CN201911337302 A CN 201911337302A CN 111073432 A CN111073432 A CN 111073432A
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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
- C09D133/18—Homopolymers or copolymers of nitriles
- C09D133/20—Homopolymers or copolymers of acrylonitrile
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
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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
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0881—Titanium
-
- 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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Abstract
The invention discloses a preparation method of a super-fire-resistant water-based intumescent fire retardant coating, which specifically comprises the following steps: s1, putting acrylonitrile, vinyl acetate and 2-ethylhexyl acrylate with proper weight into a reaction kettle, then adding a proper amount of purified water, continuously adding the sodium dodecyl sulfate and nonylphenyl polyethoxy ether composite emulsifier after uniformly stirring by a stirrer, then putting the mixture on a magnetic stirrer to form white viscous pre-emulsion, and standing for later use; the invention relates to the technical field of fireproof coatings. The preparation method of the super-fireproof water-based intumescent fireproof coating can have certain corrosion resistance and aging resistance, can be used in special environments, increases the whole application range, can ensure the fireproof effect of the coating after contacting with the outside for a long time, avoids the influence on the fireproof effect of the coating after aging, prolongs the whole service life to a certain extent, and is convenient for a user to operate.
Description
Technical Field
The invention relates to the technical field of fireproof coatings, in particular to a preparation method of a super-fireproof water-based intumescent fireproof coating.
Background
The fire-proof coating is a special coating which is used for the surface of a combustible base material, can reduce the flammability of the surface of the coated material and retard the rapid spread of fire so as to improve the fire resistance limit of the coated material, can be divided into a thick coating type, a thin type and an ultra-thin type according to the thickness of the coating, can be divided into a water-based type and a solvent-based type according to a dispersion medium, and can be divided into an expansion type and a non-expansion type according to the forms of the coating after combustion. The coating of the intumescent fire-retardant coating is thin, a carbonization layer with the thickness several times or even dozens of times of the original coating is generated in the combustion process, oxygen and heat can be effectively isolated, the existing ultra-fire-resistant aqueous intumescent fire-retardant coating is widely applied, but in the daily use process, due to the use environment of the coating, the coating can peel off the surface of the coating under the corrosion action, and the essence of the coating can be changed to a certain extent under the long-term direct irradiation of sunlight, so that the overall effect is influenced.
The traditional preparation method of the super-fire-resistant water-based intumescent fire retardant coating cannot have certain corrosion resistance and ageing resistance, cannot be used in special environments, reduces the whole application range, cannot ensure the fireproof effect of the coating after being contacted with the outside for a long time, easily influences the fireproof effect of the coating after the coating is aged, reduces the whole service life to a certain extent, has complicated preparation steps, and is inconvenient for a user to operate.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of a super-fire-resistant water-based intumescent fire-retardant coating, which solves the problems of poor corrosion resistance and ageing resistance of the super-fire-resistant water-based intumescent fire-retardant coating.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of a super-fire-resistant water-based intumescent fire retardant coating specifically comprises the following steps:
s1, putting acrylonitrile, vinyl acetate and 2-ethylhexyl acrylate with proper weight into a reaction kettle, then adding a proper amount of purified water, continuously adding the sodium dodecyl sulfate and nonylphenyl polyethoxy ether composite emulsifier after uniformly stirring by a stirrer, then putting the mixture on a magnetic stirrer to form white viscous pre-emulsion, and standing for later use;
s2, pouring titanium metal into a pulverizer, gradually increasing the material flow during feeding, observing the power consumption and the operation condition of a motor at any time, after the feeding and the power supply run normally in a balanced manner, stopping feeding after the pulverizer pulverizes for 30 minutes, stopping the machine after running for 5-20 minutes, taking out the pulverized material after stopping, then screening through a screen plate, placing qualified materials for later use, and pouring unqualified materials into the pulverizer again to pulverize until the qualified materials are qualified;
s3, selecting a proper amount of ammonium polyphosphate and a proper amount of pentaerythritol, mixing and grinding the mixture for 10 minutes, standing the mixture for later use, selecting a proper amount of melamine, mixing and grinding the mixture for 10 minutes, standing the mixture for later use, adding the two materials and a surfactant which are used for later use into acetone, adding tetraethoxysilane after the materials and the surfactant are uniformly dispersed, adding purified water after the materials and the surfactant are fully mixed, and then keeping the temperature at 30-40 ℃ for reaction for three hours;
s4, adding the material placed for later use in the S1 into a stirrer, then adding the titanium powder crushed in the S2, adding a proper amount of water into the mixture for stirring, adding the material prepared in the S3 while stirring, adding a proper amount of light stabilizer again after the mixture is mixed, continuously stirring the mixture for 20 minutes, and taking the material out;
s5, mixing the material taken out of the step S4 with purified water, a defoaming agent, a dehydration and carbonization catalyst and a carbonization agent, then uniformly dispersing for 1 hour by ball milling, adding a film-forming assistant after uniform mixing, and uniformly dispersing again;
and S6, detecting the dispersed material in the S5, and bagging after the quality is confirmed to be qualified.
Preferably, in S1, the rotation speed of the magnetic stirrer is 500-600 r/min, and the stirring time is 30-40 min.
Preferably, in the step S2, if the material is too damp and the binding is too large, which affects the powder output, the material should be dried or the sieve plate with a larger thickness should be replaced, and the replacement of the sieve plate can be performed by only opening the front cover.
Preferably, in S2, the titanium metal may be replaced by other metals according to practical situations, for example, different environments for applying the paint may be used, and other metals may be used according to practical environments.
Preferably, in S3, after adding purified water, the pH of the solution needs to be adjusted to be 9.0-9.2.
Preferably, in S4, the light stabilizer is composed of an ultraviolet absorber, and can absorb ultraviolet light to which the polymer is sensitive and convert energy into harmless heat energy to be discharged.
Preferably, in the S5, the rotation speed of the ball milling is 350 r/min.
(III) advantageous effects
The invention provides a preparation method of a super-fire-resistant water-based intumescent fire-retardant coating. The method has the following beneficial effects: the preparation method of the super-fire-resistant water-based intumescent fire-retardant coating specifically comprises the following steps: s1, putting acrylonitrile, vinyl acetate and 2-ethylhexyl acrylate with proper weight into a reaction kettle, then adding a proper amount of purified water, continuously adding the sodium dodecyl sulfate and nonylphenyl polyethoxy ether composite emulsifier after uniformly stirring by a stirrer, then putting the mixture on a magnetic stirrer to form white viscous pre-emulsion, and standing for later use; s2, pouring titanium metal into a pulverizer, gradually increasing the material flow during feeding, observing the power consumption and the operation condition of a motor at any time, after the feeding and the power supply run normally in a balanced manner, stopping feeding after the pulverizer pulverizes for 30 minutes, stopping the machine after running for 5-20 minutes, taking out the pulverized material after stopping, then screening through a screen plate, placing qualified materials for later use, and pouring unqualified materials into the pulverizer again to pulverize until the qualified materials are qualified; can have certain corrosion resistance and ageing resistance, can use in some special environment, increase holistic application scope, and can guarantee the effect of the fire prevention of coating after contacting with external long term, avoided the influence that causes its fire prevention effect after the coating is ageing, increased holistic life to a certain extent, and the preparation step is simple, and convenient to use person operates.
Drawings
FIG. 1 is a flow chart of a method of making the present invention;
FIG. 2 is a table of experimental data statistics according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present invention provides a technical solution: a preparation method of a super-fire-resistant water-based intumescent fire retardant coating specifically comprises the following steps:
s1, putting acrylonitrile, vinyl acetate and 2-ethylhexyl acrylate with proper weight into a reaction kettle, then adding a proper amount of purified water, continuously adding a sodium dodecyl sulfate and nonylphenyl polyethoxy ether composite emulsifier after uniformly stirring by a stirrer, then putting the mixture into a magnetic stirrer to form a white viscous pre-emulsion, and standing for later use, wherein the vinyl acetate is a special name of vinyl acetate, is a raw material for preparing vinylon, is a colorless liquid, has sweet ether taste, is slightly soluble in water, is soluble in alcohol, acetone, benzene, chloroform and is flammable, and vapor of the vinyl acetate and air can form an explosive mixture;
s2, pouring titanium metal into a pulverizer, gradually increasing the material flow during feeding, observing the power consumption and the operation condition of a motor at any time, stopping feeding a material when the feeding and the power supply operate normally in a balanced mode, stopping feeding after the pulverizer pulverizes for 30 minutes, stopping the pulverizer after the machine operates for 5-20 minutes, taking out the pulverized material after the machine stops, screening the pulverized material through a sieve plate, placing qualified materials for later use, pouring unqualified materials into the pulverizer again, and pulverizing until the qualified materials are obtained, wherein the titanium powder has good corrosion resistance, can effectively improve the overall corrosion resistance of the coating after being added into the coating, and prevents the coating from changing the quality due to corrosion;
s3, selecting a proper amount of ammonium polyphosphate and a proper amount of pentaerythritol, mixing and grinding the mixture for later use after mixing for 10 minutes, selecting a proper amount of melamine and a proper amount of pentaerythritol, mixing the mixture for later use after mixing for 10 minutes, adding the two materials for later use and a surfactant into acetone, adding tetraethoxysilane after dispersing uniformly, adding purified water after fully mixing, and then carrying out heat preservation reaction for three hours at the temperature of 30-40 ℃, wherein the tetraethoxysilane is a colorless liquid, has anesthesia and irritation at high concentration, and is mainly used as a heat-proof coating, a chemical-resistant coating and an organic synthesis intermediate;
s4, adding the material placed for later use in the S1 into a stirrer, adding the titanium powder crushed in the S2, adding a proper amount of water into the mixture, stirring the mixture, adding the material prepared in the S3 while stirring, adding a proper amount of light stabilizer again after the mixture is mixed, continuously stirring the mixture for 20 minutes, and taking out the material, wherein vinyl acetate is another name of vinyl acetate, and other names of vinyl acetate and vinyl acetate are raw materials for preparing vinylon. Is colorless liquid and has sweet ether taste; slightly soluble in water, and soluble in alcohol, acetone, benzene, and chloroform. Vinyl acetate is flammable, and vapor of the vinyl acetate and air can form an explosive mixture, because products such as coatings, plastics, rubbers, synthetic fibers and the like are subjected to self-oxidation caused by ultraviolet ray absorption under sunlight or strong fluorescence, so that polymers are degraded, the appearance and the physical and mechanical properties of the products are deteriorated, the process is called photo-oxidation-reduction or photo-aging, and a light stabilizer can effectively relieve the situation;
s5, mixing the material taken out of the step S4 with purified water, a defoaming agent, a dehydration and carbonization catalyst and a carbonization agent, then uniformly dispersing for 1 hour by ball milling, adding a film-forming assistant after uniform mixing, and uniformly dispersing again;
s6, detecting the dispersed material in S5, bagging after the quality is determined to be qualified, wherein the film-forming aid is also called a coalescing aid, can promote the plastic flow and elastic deformation of a high molecular compound, improve the coalescing performance, can form a film in a wider construction temperature range, is an easily-disappearing plasticizer, is a strong solvent of ether alcohol high polymer, such as propylene glycol butyl ether, propylene glycol methyl ether acetate and the like, and is forbidden by most countries due to reproductive toxicity to human bodies.
In the invention, in S1, the rotation speed of the magnetic stirrer is 500-600 r/min, and the stirring time is 30-40 min.
In the invention, in S2, if the powder output is affected by too much moisture and too much adhesion of the materials, the materials are dried or the sieve plate with a larger thickness is replaced, and the replacement of the sieve plate can be carried out only by opening the front cover.
In the present invention, in S2, the titanium metal may be replaced by other metals according to actual situations, for example, the environment of the paint application is different, and other metals may be used according to the actual environment.
In the invention, in S3, after adding purified water, the pH value of the solution needs to be adjusted, and the pH value of the solution is controlled to be 9.0-9.2.
In the invention, in S4, the light stabilizer is composed of an ultraviolet absorbent, can absorb ultraviolet light sensitive to the polymer, and can convert energy into harmless heat energy to be discharged.
In the present invention, in S5, the rotation speed of the ball mill is 350 r/min.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A preparation method of a super-fire-resistant water-based intumescent fire retardant coating is characterized by comprising the following steps: the method specifically comprises the following steps:
s1, putting acrylonitrile, vinyl acetate and 2-ethylhexyl acrylate with proper weight into a reaction kettle, then adding a proper amount of purified water, continuously adding the sodium dodecyl sulfate and nonylphenyl polyethoxy ether composite emulsifier after uniformly stirring by a stirrer, then putting the mixture on a magnetic stirrer to form white viscous pre-emulsion, and standing for later use;
s2, pouring titanium metal into a pulverizer, gradually increasing the material flow during feeding, observing the power consumption and the operation condition of a motor at any time, after the feeding and the power supply run normally in a balanced manner, stopping feeding after the pulverizer pulverizes for 30 minutes, stopping the machine after running for 5-20 minutes, taking out the pulverized material after stopping, then screening through a screen plate, placing qualified materials for later use, and pouring unqualified materials into the pulverizer again to pulverize until the qualified materials are qualified;
s3, selecting a proper amount of ammonium polyphosphate and a proper amount of pentaerythritol, mixing and grinding the mixture for 10 minutes, standing the mixture for later use, selecting a proper amount of melamine, mixing and grinding the mixture for 10 minutes, standing the mixture for later use, adding the two materials and a surfactant which are used for later use into acetone, adding tetraethoxysilane after the materials and the surfactant are uniformly dispersed, adding purified water after the materials and the surfactant are fully mixed, and then keeping the temperature at 30-40 ℃ for reaction for three hours;
s4, adding the material placed for later use in the S1 into a stirrer, then adding the titanium powder crushed in the S2, adding a proper amount of water into the mixture for stirring, adding the material prepared in the S3 while stirring, adding a proper amount of light stabilizer again after the mixture is mixed, continuously stirring the mixture for 20 minutes, and taking the material out;
s5, mixing the material taken out of the step S4 with purified water, a defoaming agent, a dehydration and carbonization catalyst and a carbonization agent, then uniformly dispersing for 1 hour by ball milling, adding a film-forming assistant after uniform mixing, and uniformly dispersing again;
and S6, detecting the dispersed material in the S5, and bagging after the quality is confirmed to be qualified.
2. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in S1, the rotation speed of the magnetic stirrer is 500-600 r/min, and the stirring time is 30-40 min.
3. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in S2, if the powder is produced due to too damp materials and too large adhesion, the materials should be dried or the thick sieve plate should be replaced, and the replacement of the sieve plate can be carried out only by opening the front cover.
4. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in S2, the titanium metal may be replaced by other metals according to actual situations, for example, other metals may be used according to actual environments when the paint is applied.
5. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in the step S3, after purified water is added, the pH value of the solution needs to be adjusted, and the pH value of the solution is controlled to be 9.0-9.2.
6. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in the S4, the light stabilizer is composed of an ultraviolet absorbent, can absorb ultraviolet light sensitive to the polymer and can convert energy into harmless heat energy to be discharged.
7. The method for preparing the super-fire-resistant water-based intumescent fire-retardant coating as claimed in claim 1, characterized in that: in the step S5, the rotation speed of ball milling is 350 r/min.
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Citations (5)
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| CN1629226A (en) * | 2003-12-19 | 2005-06-22 | 中国印钞造币总公司 | Surface coating composition |
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| CN110558445A (en) * | 2019-09-11 | 2019-12-13 | 安徽西山湖农业发展有限公司 | Preparation method of chicken feed |
-
2019
- 2019-12-23 CN CN201911337302.7A patent/CN111073432A/en active Pending
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| CN1629226A (en) * | 2003-12-19 | 2005-06-22 | 中国印钞造币总公司 | Surface coating composition |
| CN103911034A (en) * | 2014-04-09 | 2014-07-09 | 浙江亚宁科技有限公司 | Water-soluble environment-friendly energy-saving paint |
| CN108441003A (en) * | 2018-04-19 | 2018-08-24 | 佛山市康东照明科技有限公司 | A kind of facing intumescent silicon sol water woodware fireproof paint |
| CN110306380A (en) * | 2019-07-26 | 2019-10-08 | 北京知淘科技有限责任公司 | A kind of waterproof flame-retardant paint and preparation method thereof for corrugated board |
| CN110558445A (en) * | 2019-09-11 | 2019-12-13 | 安徽西山湖农业发展有限公司 | Preparation method of chicken feed |
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