CN110628317A - Long-acting waterproof coating for kitchens and bathrooms - Google Patents
Long-acting waterproof coating for kitchens and bathrooms Download PDFInfo
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- CN110628317A CN110628317A CN201911115075.3A CN201911115075A CN110628317A CN 110628317 A CN110628317 A CN 110628317A CN 201911115075 A CN201911115075 A CN 201911115075A CN 110628317 A CN110628317 A CN 110628317A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
- C09D1/08—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement with organic additives
-
- 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
-
- 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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of indoor building waterproof coatings, and discloses a kitchen and bathroom long-acting waterproof coating which comprises the following raw materials in parts by weight: 30-40 parts of diphenylmethane diisocyanate (MDI), 10-20 parts of polyether glycol (N220), 5-10 parts of talcum powder, 5-10 parts of diethylene glycol, 30-40 parts of white portland cement, 0.5-2 parts of triethanolamine, 1-1.5 parts of dimethyl silicone oil, 0.5-1 part of triethylene diamine and 0.1-0.5 part of stannous octoate. The invention solves the technical problem that the interface separation of the polymer organic phase and the cement inorganic phase is easy to occur after the existing polymer cement waterproof coating is dried, cured and formed.
Description
Technical Field
The invention relates to the technical field of indoor building waterproof coatings, in particular to a long-acting waterproof coating for kitchens and bathrooms.
Background
The kitchen and the toilet are the two spaces where water is most frequently used throughout the living room, and therefore water-proof work must be done so that no significant adverse consequences are caused. The waterproof paint used in kitchens and toilets is mainly polymer cement waterproof paint which mainly comprises polymer emulsion, cement, pigment and filler and auxiliaries, combines the advantages of the rigidity of the cement and the flexibility of the polymer, and can adapt to the building waterproof requirements under various conditions by adjusting the proportion of the polymer emulsion to the cement.
Because the polymer emulsion is an organic high molecular material, the cement and the pigment and filler are inorganic materials, and the compatibility between the organic phase and the inorganic phase is poor, after the polymer cement waterproof coating is dried, cured and formed, the organic phase and the inorganic phase are easy to generate interface separation, cracks and gaps are generated on the organic-inorganic interface, moisture can continuously permeate into the cracks and the gaps, and finally the material fails, so that the waterproof effect is lost.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a long-acting waterproof paint for kitchens and bathrooms, which aims to solve the technical problem that the interface separation of a polymer organic phase and a cement inorganic phase is easy to occur after the existing polymer cement waterproof paint is dried, cured and formed.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
the long-acting waterproof paint for kitchens and bathrooms comprises the following raw materials in parts by weight: 30-40 parts of diphenylmethane diisocyanate (MDI), 10-20 parts of polyether glycol (N220), 5-10 parts of talcum powder, 5-10 parts of diethylene glycol, 30-40 parts of white portland cement, 0.5-2 parts of triethanolamine, 1-1.5 parts of dimethyl silicone oil, 0.5-1 part of triethylene diamine and 0.1-0.5 part of stannous octoate.
Further, the preparation method of the waterproof coating comprises the following steps:
the method comprises the following steps: adding the mixture into a reactor with a stirring device and a heating device, then adding diphenylmethane diisocyanate (MDI) into the reactor, and reacting for 2-3 h at the temperature of 70-80 ℃ and the speed of 200-300 rpm;
adding white silicate cement into a reactor, and reacting for 1-2 hours at the temperature of 70-80 ℃ and the speed of 200-300 rpm; obtaining a component I;
step two: transferring the talcum powder into a high-speed reactor with a stirring device, adding diethylene glycol, triethanolamine, dimethyl silicone oil, triethylene diamine and stannous octoate into the reactor, and mixing for 1-2 hours at the speed of 600-800 rpm to obtain a second component;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
Further, the polyether diol (N220) in the first step is put into a vacuum drying oven to be heated to 120 ℃ for vacuum dehydration for 1 hour.
And further, putting the talcum powder obtained in the second step into a vacuum drying oven, heating to 100 ℃, and carrying out vacuum dehydration for 1 h.
(III) advantageous technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the mixed crosslinking auxiliary agent which is excellent in interface compatibility and consists of talcum powder and diethylene glycol is added into a matrix of polyurethane and white portland cement to prepare the long-acting waterproof paint for kitchens and bathrooms, which is excellent in waterproof performance and long in acting time, wherein the water absorption rate of the long-acting waterproof paint for kitchens and bathrooms after being soaked for 5 hours is 0.60-0.63%, and compared with the water absorption rate of 1.72% of the long-acting waterproof paint for kitchens and bathrooms prepared by a comparative example after being soaked for 5 hours, the technical effect of obviously improving the waterproof performance of the paint is achieved;
therefore, the technical problem that the interface separation of a polymer organic phase and a cement inorganic phase is easy to occur after the existing polymer cement waterproof coating is dried, cured and formed is solved.
Detailed Description
Polyether diol (N220), relative molecular mass 2000, commercially available;
diphenylmethane diisocyanate (MDI), white fixed, commercially available;
talc, average particle size 10um, commercially available;
diethylene glycol, freezing point-6.5 ℃, relative density 1.1164(20/4 ℃), commercially available;
white portland cement, 10um average particle size, commercially available.
The first embodiment is as follows:
the long-acting waterproof paint for kitchens and bathrooms comprises the following raw materials in parts by weight: 30g of diphenylmethane diisocyanate (MDI), 10g of polyether glycol (N220), 5g of talcum powder, 5g of diethylene glycol, 30g of white portland cement, 0.5g of triethanolamine, 1g of simethicone, 0.5g of triethylene diamine and 0.1g of stannous octoate;
the preparation method of the long-acting waterproof coating for kitchens and bathrooms comprises the following steps:
the method comprises the following steps: adding 10g of polyether glycol (N220) into a beaker, putting the beaker into a vacuum drying oven, heating to 120 ℃, vacuum dehydrating for 1h, cooling, and taking out the beaker;
transferring polyether glycol (N220) in a flask into a reactor with a stirring device and a heating device, adding 30g of diphenylmethane diisocyanate (MDI) into the reactor, and reacting at the temperature of 70 ℃ and the speed of 200rpm for 2-3 h;
adding 30g of white portland cement into a reactor, and reacting for 1h at the temperature of 70 ℃ and the speed of 200 rpm; obtaining a component I;
step two: adding 5g of talcum powder into a beaker, putting the beaker into a vacuum drying oven, heating to 100 ℃, vacuum dehydrating for 1h, and taking out the beaker after cooling;
transferring the talcum powder in the flask into a high-speed reactor with a stirring device, adding 5g of diethylene glycol, 0.5g of triethanolamine, 1g of simethicone, 0.5g of triethylene diamine and 0.1g of stannous octoate into the reactor, and mixing for 1h at the speed of 600rpm to obtain a component II;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
Example two:
the long-acting waterproof paint for kitchens and bathrooms comprises the following raw materials in parts by weight: 40g of diphenylmethane diisocyanate (MDI), 20g of polyether diol (N220), 10g of talcum powder, 10g of diethylene glycol, 40g of white portland cement, 2g of triethanolamine, 1.5g of simethicone, 1g of triethylene diamine and 0.5g of stannous octoate;
the preparation method of the long-acting waterproof coating for kitchens and bathrooms comprises the following steps:
the method comprises the following steps: adding 20g of polyether glycol (N220) into a beaker, putting the beaker into a vacuum drying oven, heating to 120 ℃, vacuum dehydrating for 1h, cooling, and taking out the beaker;
transferring polyether glycol (N220) in a flask into a reactor with a stirring device and a heating device, adding 40g of diphenylmethane diisocyanate (MDI) into the reactor, and reacting at the temperature of 80 ℃ and the speed of 300rpm for 3 hours;
adding 40g of white portland cement into a reactor, and reacting for 2 hours at the temperature of 80 ℃ and the speed of 300 rpm; obtaining a component I;
step two: adding 10g of talcum powder into a beaker, putting the beaker into a vacuum drying oven, heating to 100 ℃, vacuum dehydrating for 1h, and taking out the beaker after cooling;
transferring the talcum powder in the flask into a high-speed reactor with a stirring device, then adding 10g of diethylene glycol, 2g of triethanolamine, 1.5g of simethicone, 1g of triethylene diamine and 0.5g of stannous octoate into the reactor, and mixing for 2 hours at the speed of 800rpm to obtain a component II;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
Example three:
the long-acting waterproof paint for kitchens and bathrooms comprises the following raw materials in parts by weight: 35g of diphenylmethane diisocyanate (MDI), 15g of polyether glycol (N220), 8g of talcum powder, 8g of diethylene glycol, 35g of white portland cement, 1g of triethanolamine, 1.2g of simethicone, 0.8g of triethylenediamine and 0.2g of stannous octoate;
the preparation method of the long-acting waterproof coating for kitchens and bathrooms comprises the following steps:
the method comprises the following steps: adding 15g of polyether glycol (N220) into a beaker, putting the beaker into a vacuum drying oven, heating to 120 ℃, vacuum dehydrating for 1h, cooling, and taking out the beaker;
transferring polyether glycol (N220) in a flask into a reactor with a stirring device and a heating device, adding 35g of diphenylmethane diisocyanate (MDI) into the reactor, and reacting at 75 ℃ and 250rpm for 2.5 h;
adding 35g of white portland cement into a reactor, and reacting for 1.5h at the temperature of 75 ℃ and the speed of 250 rpm; obtaining a component I;
step two: adding 8g of talcum powder into a beaker, putting the beaker into a vacuum drying oven, heating to 100 ℃, vacuum dehydrating for 1h, and taking out the beaker after cooling;
transferring the talcum powder in the flask into a high-speed reactor with a stirring device, adding 8g of diethylene glycol, 1g of triethanolamine, 1.2g of simethicone, 0.8g of triethylene diamine and 0.2g of stannous octoate into the reactor, and mixing for 1.5 hours at the speed of 700rpm to obtain a component II;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
Comparative example:
the long-acting waterproof paint for kitchens and bathrooms comprises the following raw materials in parts by weight: 35g of diphenylmethane diisocyanate (MDI), 15g of polyether diol (N220), 35g of white portland cement, 1g of triethanolamine, 1.2g of simethicone, 0.8g of triethylene diamine, and 0.2g of stannous octoate;
the preparation method of the long-acting waterproof coating for kitchens and bathrooms comprises the following steps:
the method comprises the following steps: adding 15g of polyether glycol (N220) into a beaker, putting the beaker into a vacuum drying oven, heating to 120 ℃, vacuum dehydrating for 1h, cooling, and taking out the beaker;
transferring polyether glycol (N220) in a flask into a reactor with a stirring device and a heating device, adding 35g of diphenylmethane diisocyanate (MDI) into the reactor, and reacting at 75 ℃ and 250rpm for 2.5 h;
adding 35g of white portland cement into a reactor, and reacting for 1.5h at the temperature of 75 ℃ and the speed of 250 rpm; obtaining a component I;
step two: adding 1g of triethanolamine, 1.2g of simethicone, 0.8g of triethylene diamine and 0.2g of stannous octoate into a high-speed reactor with a stirring device, and mixing for 1.5h at the speed of 700rpm to obtain a component II;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
And (3) performance testing:
the kitchen and bathroom long-acting waterproof coatings prepared in the above examples and comparative examples were painted to form a film with a thickness of 2mm, and after curing and airing, the water absorption of the film was tested, and the test results are shown in table 1 below.
TABLE 1
| Examples | Water absorption (%) |
| Example one | 0.61 |
| Example two | 0.63 |
| EXAMPLE III | 0.60 |
| Comparative example | 1.72 |
Claims (4)
1. The long-acting waterproof paint for kitchens and bathrooms is characterized by comprising the following raw materials in parts by weight: 30-40 parts of diphenylmethane diisocyanate (MDI), 10-20 parts of polyether glycol (N220), 5-10 parts of talcum powder, 5-10 parts of diethylene glycol, 30-40 parts of white portland cement, 0.5-2 parts of triethanolamine, 1-1.5 parts of dimethyl silicone oil, 0.5-1 part of triethylene diamine and 0.1-0.5 part of stannous octoate.
2. The waterproof coating material according to claim 1, characterized in that the preparation method of the waterproof coating material comprises the steps of:
the method comprises the following steps: adding the mixture into a reactor with a stirring device and a heating device, then adding diphenylmethane diisocyanate (MDI) into the reactor, and reacting for 2-3 h at the temperature of 70-80 ℃ and the speed of 200-300 rpm;
adding white silicate cement into a reactor, and reacting for 1-2 hours at the temperature of 70-80 ℃ and the speed of 200-300 rpm; obtaining a component I;
step two: transferring the talcum powder into a high-speed reactor with a stirring device, adding diethylene glycol, triethanolamine, dimethyl silicone oil, triethylene diamine and stannous octoate into the reactor, and mixing for 1-2 hours at the speed of 600-800 rpm to obtain a second component;
step three: and adding the component I into the component II, and mechanically stirring at 1500rpm for 10s at high speed to prepare the long-acting waterproof coating for kitchens and bathrooms.
3. The waterproof coating material of claim 2, wherein the polyether glycol (N220) obtained in the first step is placed in a vacuum drying oven, and the temperature is raised to 120 ℃ for vacuum dehydration for 1 hour.
4. The waterproof coating material of claim 3, wherein the talc powder of the second step is put into a vacuum drying oven and heated to 100 ℃ for vacuum dehydration for 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115075.3A CN110628317A (en) | 2019-11-14 | 2019-11-14 | Long-acting waterproof coating for kitchens and bathrooms |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115075.3A CN110628317A (en) | 2019-11-14 | 2019-11-14 | Long-acting waterproof coating for kitchens and bathrooms |
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| CN110628317A true CN110628317A (en) | 2019-12-31 |
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| CN201911115075.3A Pending CN110628317A (en) | 2019-11-14 | 2019-11-14 | Long-acting waterproof coating for kitchens and bathrooms |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230233A (en) * | 2008-02-22 | 2008-07-30 | 苏州中材非金属矿工业设计研究院有限公司 | Water-curing environment-friendly type polyurethane waterproofing paint and preparation technique thereof |
| CN102181224A (en) * | 2011-01-31 | 2011-09-14 | 北京东方雨虹防水技术股份有限公司 | Reactive polymer cement waterproof coating |
| KR20150052722A (en) * | 2014-02-10 | 2015-05-14 | 주식회사 에스윈 | Waterborne resin binder for coating flooring, Special mortar for coating flooring, Mixed composition of water-soluble resin binder and exclusive mortar for coating flooring, and method for coating flooring |
| CN104673076A (en) * | 2015-01-26 | 2015-06-03 | 徐州卧牛山新型防水材料有限公司 | Novel high-strength polyurethane waterproofing paint and preparation method thereof |
-
2019
- 2019-11-14 CN CN201911115075.3A patent/CN110628317A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230233A (en) * | 2008-02-22 | 2008-07-30 | 苏州中材非金属矿工业设计研究院有限公司 | Water-curing environment-friendly type polyurethane waterproofing paint and preparation technique thereof |
| CN102181224A (en) * | 2011-01-31 | 2011-09-14 | 北京东方雨虹防水技术股份有限公司 | Reactive polymer cement waterproof coating |
| KR20150052722A (en) * | 2014-02-10 | 2015-05-14 | 주식회사 에스윈 | Waterborne resin binder for coating flooring, Special mortar for coating flooring, Mixed composition of water-soluble resin binder and exclusive mortar for coating flooring, and method for coating flooring |
| CN104673076A (en) * | 2015-01-26 | 2015-06-03 | 徐州卧牛山新型防水材料有限公司 | Novel high-strength polyurethane waterproofing paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 林克辉: "《新型建筑材料及应用》", 31 January 2006, 华南理工大学出版社 * |
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