CN113621296A - Preparation process of waterborne polyurethane waterproof coating - Google Patents
Preparation process of waterborne polyurethane waterproof coating Download PDFInfo
- Publication number
- CN113621296A CN113621296A CN202110924807.4A CN202110924807A CN113621296A CN 113621296 A CN113621296 A CN 113621296A CN 202110924807 A CN202110924807 A CN 202110924807A CN 113621296 A CN113621296 A CN 113621296A
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- stirrer
- preparation process
- slurry
- stirring
- waterproof coating
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- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 33
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 38
- 239000012752 auxiliary agent Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 14
- 239000000049 pigment Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 12
- 229920000647 polyepoxide Polymers 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/80—Processes for incorporating ingredients
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a preparation process of a waterborne polyurethane waterproof coating, which comprises the following steps: the invention adopts reasonable raw material proportion, so that the product has good waterproof performance, the surface of the coating is not easy to foam, crack and fall off after long-time use, and the purity of the prepared coating is improved through multi-step grading processing treatment in the preparation process, thereby enhancing the use effect of the coating.
Description
Technical Field
The invention relates to the technical field of waterproof coatings, in particular to a preparation process of a waterborne polyurethane waterproof coating.
Background
The waterproof coating is a waterproof film formed by curing a coating waterproof coating which can prevent rainwater or underground water from leaking and has certain extensibility, elastoplasticity, crack resistance, impermeability and weather resistance, and can play roles in waterproofing, seepage prevention and protection.
The existing polyurethane waterproof coating has unreasonable proportions of all components, so that the prepared coating is easy to generate the phenomena of foaming, cracking and falling, and in the preparation process, the purity of the prepared coating is reduced due to the single preparation process.
Therefore, a preparation process of the waterborne polyurethane waterproof coating needs to be designed aiming at the problems.
Disclosure of Invention
The invention aims to provide a preparation process of a water-based polyurethane waterproof coating, which aims to solve the problems that the components of the existing polyurethane waterproof coating in the background art are unreasonable in proportion, the prepared coating is easy to generate foaming, cracking and dropping phenomena, and the purity of the prepared coating is reduced due to the single preparation process in the preparation process.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation process of a waterborne polyurethane waterproof coating comprises the following steps:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40-60kg of epoxy resin, 5-10kg of polyurethane, 15-20kg of water solvent, 2-5kg of pigment, 2-5kg of filler, 10-15kg of auxiliary agent and 2-5kg of adhesive;
step two: firstly, 40-60kg of epoxy resin, 5-10kg of polyurethane and 15-20kg of hydrosolvent are placed into a first stirrer, the rotating speed of the first stirrer is controlled to be 2000-2500 r/min for stirring, the temperature in the first stirrer is controlled to be within 20-80 ℃, and initial slurry is obtained after the first stirrer stirs for 30 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2-5kg of pigment and 2-5kg of filler, controlling the rotating speed of the second stirrer to be 2000-2500 r/min for stirring, controlling the temperature in the second stirrer to be within 20-80 ℃, and stirring for 30min by using the second stirrer to obtain secondary slurry;
step four: and after stirring for 30min by using a second stirrer, directly adding 10-15kg of auxiliary agent and 2-5kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
Preferably, the pigment is titanium dioxide, and the filler is talcum powder.
Preferably, the polyurethane and the water solvent are added into the first stirrer at the same time for stirring.
Preferably, the auxiliary agent is formed by combining 3-7kg of dispersing agent, 3-7kg of defoaming agent and 3-7kg of flatting agent.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts reasonable raw material proportion, so that the product has good waterproof performance, the surface of the coating is not easy to bubble, crack and fall off after long-time use, and the purity of the prepared coating is improved through multi-step grading processing treatment in the preparation process, thereby enhancing the use effect of the coating.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The invention provides a technical scheme that:
example 1:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40kg of epoxy resin, 5kg of polyurethane, 15kg of water solvent, 2kg of pigment, 2kg of filler, 10kg of auxiliary agent and 2kg of adhesive;
step two: firstly, 40kg of epoxy resin, 5kg of polyurethane and 15kg of hydrosolvent are put into a first stirrer, the rotating speed of the first stirrer is controlled at 2000r/min for stirring, the temperature in the first stirrer is controlled within 20 ℃, and initial slurry is obtained after the first stirrer stirs for 30 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2kg of pigment and 2kg of filler, controlling the rotating speed of the second stirrer to be 2000r/min for stirring, controlling the temperature in the second stirrer to be within 20 ℃, and obtaining secondary slurry after the second stirrer stirs for 30 min;
step four: and after stirring for 30min by using a second stirrer, directly adding 10kg of auxiliary agent and 2kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
Example 2:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40kg of epoxy resin, 5kg of polyurethane, 15kg of water solvent, 2kg of pigment, 2kg of filler, 10kg of auxiliary agent and 2kg of adhesive;
step two: firstly, 40kg of epoxy resin, 5kg of polyurethane and 15kg of hydrosolvent are put into a first stirrer, the rotating speed of the first stirrer is controlled at 2500r/min for stirring, the temperature in the first stirrer is controlled within 20 ℃, and initial slurry is obtained after the first stirrer stirs for 30 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2kg of pigment and 2kg of filler, controlling the rotating speed of the second stirrer to be 2000r/min for stirring, controlling the temperature in the second stirrer to be within 20 ℃, and obtaining secondary slurry after the second stirrer stirs for 30 min;
step four: and after stirring for 30min by using a second stirrer, directly adding 10kg of auxiliary agent and 2kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
Example 3:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40kg of epoxy resin, 5kg of polyurethane, 15kg of water solvent, 2kg of pigment, 2kg of filler, 10kg of auxiliary agent and 2kg of adhesive;
step two: firstly, 40kg of epoxy resin, 5kg of polyurethane and 15kg of hydrosolvent are put into a first stirrer, the rotating speed of the first stirrer is controlled at 2000r/min for stirring, the temperature in the first stirrer is controlled within 80 ℃, and initial slurry is obtained after the first stirrer stirs for 30 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2kg of pigment and 2kg of filler, controlling the rotating speed of the second stirrer to be 2000r/min for stirring, controlling the temperature in the second stirrer to be within 80 ℃, and obtaining secondary slurry after the second stirrer stirs for 30 min;
step four: and after stirring for 30min by using a second stirrer, directly adding 10kg of auxiliary agent and 2kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
Example 4:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40kg of epoxy resin, 5kg of polyurethane, 15kg of water solvent, 2kg of pigment, 2kg of filler, 10kg of auxiliary agent and 2kg of adhesive;
step two: firstly, 40kg of epoxy resin, 5kg of polyurethane and 15kg of hydrosolvent are put into a first stirrer, the rotating speed of the first stirrer is controlled at 2000r/min for stirring, the temperature in the first stirrer is controlled within 20 ℃, and initial slurry is obtained after the first stirrer stirs for 60 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2kg of pigment and 2kg of filler, controlling the rotating speed of the second stirrer to be 2000r/min for stirring, controlling the temperature in the second stirrer to be within 20 ℃, and obtaining secondary slurry after the second stirrer stirs for 60 min;
step four: and after stirring for 60min by using a second stirrer, directly adding 10kg of auxiliary agent and 2kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
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 (4)
1. A preparation process of a waterborne polyurethane waterproof coating is characterized by comprising the following steps:
the method comprises the following steps: preparing raw materials, wherein the raw materials comprise 40-60kg of epoxy resin, 5-10kg of polyurethane, 15-20kg of water solvent, 2-5kg of pigment, 2-5kg of filler, 10-15kg of auxiliary agent and 2-5kg of adhesive;
step two: firstly, 40-60kg of epoxy resin, 5-10kg of polyurethane and 15-20kg of hydrosolvent are placed into a first stirrer, the rotating speed of the first stirrer is controlled to be 2000-2500 r/min for stirring, the temperature in the first stirrer is controlled to be within 20-80 ℃, and initial slurry is obtained after the first stirrer stirs for 30 min;
step three: after the initial slurry is cooled, pouring the initial slurry into a prepared second stirrer, adding 2-5kg of pigment and 2-5kg of filler, controlling the rotating speed of the second stirrer to be 2000-2500 r/min for stirring, controlling the temperature in the second stirrer to be within 20-80 ℃, and stirring for 30min by using the second stirrer to obtain secondary slurry;
step four: and after stirring for 30min by using a second stirrer, directly adding 10-15kg of auxiliary agent and 2-5kg of adhesive, stirring to obtain third slurry, uniformly mixing the third slurry in the second stirrer, pouring the mixture into a container prepared in advance, filtering, and standing and cooling the filtered third slurry to obtain the waterborne polyurethane waterproof coating.
2. The preparation process of the waterborne polyurethane waterproof coating according to claim 1, wherein the preparation process comprises the following steps: the pigment is titanium dioxide, and the filler is talcum powder.
3. The preparation process of the waterborne polyurethane waterproof coating according to claim 1, wherein the preparation process comprises the following steps: the polyurethane and the hydrosolvent are added into the first stirrer at the same time for stirring.
4. The preparation process of the waterborne polyurethane waterproof coating according to claim 1, wherein the preparation process comprises the following steps: the auxiliary agent is formed by combining 3-7kg of dispersing agent, 3-7kg of defoaming agent and 3-7kg of flatting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924807.4A CN113621296A (en) | 2021-08-12 | 2021-08-12 | Preparation process of waterborne polyurethane waterproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924807.4A CN113621296A (en) | 2021-08-12 | 2021-08-12 | Preparation process of waterborne polyurethane waterproof coating |
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| Publication Number | Publication Date |
|---|---|
| CN113621296A true CN113621296A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110924807.4A Pending CN113621296A (en) | 2021-08-12 | 2021-08-12 | Preparation process of waterborne polyurethane waterproof coating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624209A (en) * | 2018-05-28 | 2018-10-09 | 安徽开林新材料股份有限公司 | A kind of non-toxic, environmental friendly water-repellent paint and preparation method thereof |
| CN108753136A (en) * | 2018-05-25 | 2018-11-06 | 安徽猛牛彩印包装有限公司 | A kind of coating with water resistance |
| CN110172296A (en) * | 2019-05-08 | 2019-08-27 | 广东优美仕新材料科技有限公司 | A kind of production method of Environmental-protecwaterproof waterproof paint |
| CN112457743A (en) * | 2020-11-27 | 2021-03-09 | 成都普瑞斯特新材料有限公司 | Water-based waterproof coating and preparation method thereof |
-
2021
- 2021-08-12 CN CN202110924807.4A patent/CN113621296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108753136A (en) * | 2018-05-25 | 2018-11-06 | 安徽猛牛彩印包装有限公司 | A kind of coating with water resistance |
| CN108624209A (en) * | 2018-05-28 | 2018-10-09 | 安徽开林新材料股份有限公司 | A kind of non-toxic, environmental friendly water-repellent paint and preparation method thereof |
| CN110172296A (en) * | 2019-05-08 | 2019-08-27 | 广东优美仕新材料科技有限公司 | A kind of production method of Environmental-protecwaterproof waterproof paint |
| CN112457743A (en) * | 2020-11-27 | 2021-03-09 | 成都普瑞斯特新材料有限公司 | Water-based waterproof coating and preparation method thereof |
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Application publication date: 20211109 |
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