CN112430426A - Formula and preparation method of high-solid-content polyurethane waterproof coating - Google Patents
Formula and preparation method of high-solid-content polyurethane waterproof coating Download PDFInfo
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- CN112430426A CN112430426A CN202011340403.2A CN202011340403A CN112430426A CN 112430426 A CN112430426 A CN 112430426A CN 202011340403 A CN202011340403 A CN 202011340403A CN 112430426 A CN112430426 A CN 112430426A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
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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
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses a formula of a high solid content polyurethane waterproof coating and a preparation method thereof, the formula of the high solid content polyurethane waterproof coating comprises polyether, a plasticizer, a filler, isocyanate, a curing agent, an auxiliary agent and a diluent, wherein the auxiliary agent adopts an anhydrous auxiliary agent, the diluent adopts methyl ethyl ketone or methyl isobutyl ketone, the polyether adopts polyether 330N and polyether 2000, the mass ratio of the polyether 330N is 15-20 parts, the mass ratio of the polyether 2000 is 12-17 parts, the filler can be anhydrous and neutral organic matters or inorganic matters such as light calcium carbonate, talcum powder, mica powder and the like, and the mass ratio of the filler is 42-48 parts. According to the formula and the preparation method of the high-solid-content polyurethane waterproof coating, the solid content of single-component polyurethane is improved to more than 95% through the formula, tests show that the material consumption is about 1.2KG when the area with the thickness of 1MM and the thickness of 1M2 is constructed, the requirement of the thickness of 1.5MM can be met after 2 times of coating, the construction time is relatively shortened, the material is saved, and the construction period is prolonged.
Description
Technical Field
The invention relates to the technical field of manufacturing of high-solid-content polyurethane waterproof coatings, in particular to a formula and a preparation method of a high-solid-content polyurethane waterproof coating.
Background
The polyurethane waterproof paint is a single-component polyurethane waterproof paint which is prepared by isocyanate-group-containing prepolymer prepared by isocyanate, polyether and the like through addition polymerization reaction, matched with a catalyst, an anhydrous auxiliary agent, an anhydrous filler, a solvent and the like and processed by mixing and other working procedures, the paint is a reaction curing type (moisture curing) paint, has the characteristics of high strength, large elongation, good water resistance and the like, and has strong adaptability to deformation of a base layer, the polyurethane waterproof paint is a single-component environment-friendly waterproof paint for liquid construction, takes an imported polyurethane prepolymer as a basic component, has no tar, asphalt and other additives, is cured after moisture in air contacts, forms a layer of firm and tough seamless integral anti-membrane on the surface of the base layer, and the single-component polyurethane waterproof paint existing in the market at present basically has 85 percent of solid content which meets the standard requirement of national standard GB/T19250-2013, in the construction of the product, because the film forming speed is slow, and the coating construction requires thin coating for a plurality of times, at least 2 times, thus if the design thickness requirement of 1.5mm is met, the minimum coating is required to be coated for 3 times, and the construction thickness of 1mm is 1m2The area of the single-component polyurethane waterproof coating needs about 1.5kg of materials, so that the construction time of the single-component polyurethane waterproof coating is long during construction, and the construction period of the whole project is influenced.
Disclosure of Invention
The invention aims to provide a high-solid polyurethane-containing waterproof coating formula and a preparation method thereof, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the high solid content polyurethane waterproof paint formula comprises polyether, a plasticizer, a filler, isocyanate, a curing agent, an auxiliary agent and a diluent, wherein the auxiliary agent adopts an anhydrous auxiliary agent, and the diluent is methyl ethyl ketone or methyl isobutyl ketone.
Preferably, the polyether is polyether 330N and polyether 2000, wherein the mass ratio of polyether 330N is 15-20 parts, and polyether 2000 is 12-17 parts.
Preferably, the filler can be anhydrous and neutral organic matters or inorganic matters such as light calcium carbonate, talcum powder, mica powder and the like, and the mass ratio of the filler is 42-48 parts.
Preferably, the mass ratio of the plasticizer is 10-15 parts, the mass ratio of the isocyanate is 2-8 parts, and the mass ratio of the curing agent is 1-2 parts.
Preferably, the anhydrous assistant used by the assistant can be amide hydrogenated castor oil, and the mass ratio of the diluent to the assistant is 4-9 parts.
The preparation method of the high-solid-content polyurethane waterproof coating comprises the following steps:
s1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
Preferably, in the step S1, the mass ratio of the polyether 330N is 15 to 20 parts, the mass ratio of the polyether 2000 is 12 to 17 parts, the mass ratio of the filler is 42 to 48 parts, the mass ratio of the plasticizer is 10 to 15 parts, the mass ratio of the isocyanate is 2 to 8 parts, the mass ratio of the curing agent is 1 to 2 parts, and the mass ratio of the diluent to the auxiliary agent is 4 to 9 parts.
Compared with the prior art, the invention has the following beneficial effects:
according to the formula and the preparation method of the high-solid-content polyurethane waterproof coating, the solid content of single-component polyurethane is improved to more than 95% through the formula, tests show that the material consumption is about 1.2KG when the area with the thickness of 1MM and the thickness of 1M2 is constructed, the requirement of the thickness of 1.5MM can be met after 2 times of coating, the construction time is relatively shortened, the material is saved, and the construction period is prolonged.
Drawings
FIG. 1 is a flow chart of the preparation method of the high solid content polyurethane waterproof coating formula of the invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in figure 1, the formula of the high-solid-content polyurethane waterproof coating and the preparation method thereof provided by the invention comprise polyether, a plasticizer, a filler, isocyanate, a curing agent, an auxiliary agent and a diluent, wherein the auxiliary agent is an anhydrous auxiliary agent, and the diluent is methyl ethyl ketone or methyl isobutyl ketone.
Polyether 330N and polyether 2000 are adopted as the polyether, the mass ratio of polyether 330N is 15-20 parts, polyether 2000 is 12-17 parts, the filler can be anhydrous and neutral organic or inorganic matters such as light calcium carbonate, talcum powder and mica powder, the mass ratio of the filler is 42-48 parts, the mass ratio of the plasticizer is 10-15 parts, the mass ratio of isocyanate is 2-8 parts, the mass ratio of the curing agent is 1-2 parts, the anhydrous auxiliary agent adopted by the auxiliary agent can be amide hydrogenated castor oil, and the mass ratio of the diluent and the auxiliary agent which are mixed is 4-9 parts.
S1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
Example one
The formula of the solid polyurethane waterproof coating comprises the following components in percentage by mass:
15 parts of polyether 330N, 12 parts of polyether 2000, 42 parts of filler, 10 parts of plasticizer, 2 parts of isocyanate, 1 part of curing agent and 4 parts of diluent and auxiliary agent.
S1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
Example two
The formula of the solid polyurethane waterproof coating comprises the following components in percentage by mass:
17 parts of polyether 330N, 14 parts of polyether 2000, 45 parts of filler, 12 parts of plasticizer, 5 parts of isocyanate, 1 part of curing agent and 6 parts of diluent and auxiliary agent.
S1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
EXAMPLE III
The formula of the solid polyurethane waterproof coating comprises the following components in percentage by mass:
20 parts of polyether 330N, 17 parts of polyether 2000, 48 parts of filler, 15 parts of plasticizer, 8 parts of isocyanate, 1 part of curing agent and 9 parts of diluent and auxiliary agent.
S1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The formula of the high-solid-content polyurethane waterproof coating is characterized in that: the material formula comprises polyether, a plasticizer, a filler, isocyanate, a curing agent, an auxiliary agent and a diluent, wherein the auxiliary agent adopts an anhydrous auxiliary agent, and the diluent is methyl ethyl ketone or methyl isobutyl ketone.
2. The high-solid polyurethane waterproof coating formula according to claim 1, wherein: the polyether is polyether 330N and polyether 2000, wherein the mass ratio of the polyether 330N is 15-20 parts, and the mass ratio of the polyether 2000 is 12-17 parts.
3. The high-solid polyurethane waterproof coating formula according to claim 1, wherein: the filler can be anhydrous and neutral organic matters or inorganic matters such as light calcium carbonate, talcum powder, mica powder and the like, and the mass ratio of the filler is 42-48 parts.
4. The high-solid polyurethane waterproof coating formula according to claim 1, wherein: the mass ratio of the plasticizer is 10-15 parts, the mass ratio of the isocyanate is 2-8 parts, and the mass ratio of the curing agent is 1-2 parts.
5. The high-solid polyurethane waterproof coating formula according to claim 1, wherein: the anhydrous auxiliary agent adopted by the auxiliary agent can be amide hydrogenated castor oil, and the mass ratio of the diluent to the auxiliary agent is 4-9 parts.
6. The preparation method of the high-solid-content polyurethane waterproof coating is characterized by comprising the following steps of: the method comprises the following steps:
s1, in the material preparation stage, weighing and proportioning various materials prepared in advance according to the formula of the high-solid-content polyurethane waterproof coating required to be prepared, and distributing the materials.
S2, material heating, namely preparing a prepared base material: polyether 330N, polyether 2000, plasticizer and filler are respectively conveyed into a reaction kettle through a conveying pipeline or other conveying equipment, and the basic raw materials are heated and heated to 100-115 ℃.
S3, dehydrating the material, wherein when the temperature in the reaction kettle is raised to 100-115 ℃, the excess moisture in the base material inside the reaction kettle is consumed by an external vacuum pump connected with the reaction kettle, and the time of vacuum dehydration is 2-3 hours, so as to control the moisture content of the base material.
S4, material mixing and reacting, namely, controlling the temperature in a reactor to be 80-90 ℃ through a controller, adding isocyanate and a diluent into the reactor according to the mass ratio corresponding to the formula, keeping the isocyanate and the diluent in a constant temperature state for 1.5-2.5 hours through the reactor, adding a curing agent and an auxiliary agent into the reactor according to the corresponding mass ratio, stirring the materials in the reactor for 0.5-1 hour through a stirring mechanism in the reactor, fully mixing and reacting all the materials, and then grinding the materials through a grinding tank.
And S5, material inspection, wherein the finished product is subjected to various data detection by the detection equipment.
And S6, in the material packaging stage, after the quality detection of the finished product is passed, the finished product is discharged from the storage tank and is easily filled and packaged.
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| CN113372804A (en) * | 2021-05-27 | 2021-09-10 | 锦绣防水科技有限公司 | Single-component polyurethane waterproof paint capable of forming film once and preparation method thereof |
| CN115584154A (en) * | 2022-10-08 | 2023-01-10 | 天长市嘉丰美术用品有限公司 | Preparation process of water-soluble oil painting pigment |
| CN116200113A (en) * | 2021-11-30 | 2023-06-02 | 北京宇阳泽丽防水材料有限责任公司 | Waterproof material special for BIPV and preparation method thereof |
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| CN113372804A (en) * | 2021-05-27 | 2021-09-10 | 锦绣防水科技有限公司 | Single-component polyurethane waterproof paint capable of forming film once and preparation method thereof |
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