CN113861733A - Roofing heat-insulating anticorrosion water-bubble-resistant flexible decorative coating and preparation method thereof - Google Patents
Roofing heat-insulating anticorrosion water-bubble-resistant flexible decorative coating and preparation method thereof Download PDFInfo
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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
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
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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
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
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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
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention belongs to the field of coatings, and discloses a roof heat-insulating anticorrosion anti-bubble flexible decorative coating which comprises the following components in parts by weight: 20-40 parts of novolac epoxy resin; 10-20 parts of pure acrylic emulsion; 30-50 parts of high-alumina cement with the reference number 425; 5-10 parts of vitrified micro bubbles; 1-3 parts of titanium white slurry; 1-2 parts of carbon fiber; 3-5 parts of silica sol. The coating has the characteristics of excellent heat insulation, corrosion resistance and blister resistance, is flexible, can be treaded, and can be suitable for temperature change to carry out proper extension. The invention also provides a preparation method of the coating.
Description
Technical Field
The invention relates to the field of coatings, in particular to a flexible decorative coating with heat insulation, corrosion resistance and water bubble resistance for a roof and a preparation method thereof.
Background
The high-alumina cement has obvious advantages in being used in coatings, the most important advantage is that when the high-alumina cement is used in outdoor coatings such as exterior wall coatings, the high-alumina cement has better weather resistance when the proportion of the high-alumina cement to emulsion and organic matters is about 1:1, and compared with the traditional organic coatings, the high-temperature resistance is particularly excellent.
The earliest case in this respect dates back to 2014, and CN201410556092.1 discloses a JS waterproof alkali-resistant environment-friendly exterior wall paint. Comprises common filler, pigment, auxiliary agent and thinner, and also comprises the following raw materials in percentage by weight. 35-45% of high-aluminum white cement; 2-5% of active kaolin; 0.2-0.6% of organic silicon water repellent; 0.1-0.3% of alkali-resistant auxiliary agent; 0.3-0.5% of wetting agent; 50-70% of elastic waterproof emulsion; 10-30% of pure acrylic emulsion. The paint has the characteristics of brushing resistance, no pollution, weather resistance and high covering power, can prevent water and seepage, has excellent adhesive force on a cement base material, has excellent efflorescence resistance and salting-out resistance, does not need to be sealed by alkali-resistant primer, and can be directly constructed on the cement base material.
The paint has the advantage of incomparable traditional organic paint as exterior wall paint.
The direction of the important research of the application is as follows: when roof coating is carried out, the characteristics of heat insulation, corrosion resistance and water bubble resistance need to be achieved, and meanwhile, the roof coating is also required to be flexible, capable of bearing certain weight and have certain ductility.
Disclosure of Invention
An object of the present invention is to provide a flexible decorative coating for roofing, which has excellent heat-insulating, corrosion-resistant and blister-resistant properties, is a flexible coating, can be treaded, and can be appropriately spread in response to a temperature change.
The second purpose of the invention is to provide a preparation method of the coating.
In order to realize the purpose, the invention provides a flexible decorative coating with heat insulation, corrosion resistance and water bubble resistance for a roof, which comprises the following components in parts by weight:
20-40 parts of novolac epoxy resin;
10-20 parts of pure acrylic emulsion;
30-50 parts of high-alumina cement with the reference number 425;
5-10 parts of vitrified micro bubbles;
1-3 parts of titanium white slurry;
1-2 parts of carbon fiber;
3-5 parts of silica sol.
The flexible decorative coating for roof heat insulation, corrosion prevention and water bubble resistance comprises the following components in parts by weight:
22-26 parts of novolac epoxy resin;
14-18 parts of pure acrylic emulsion;
42-48 parts of high-alumina cement with the reference number 425;
6-8 parts of vitrified micro bubbles;
1.5-2.5 parts of titanium white slurry;
1.2-1.7 parts of carbon fiber;
3.5-4.5 parts of silica sol.
The roof heat-insulating anticorrosive anti-bubble flexible decorative coating also comprises a polymer Lepaiku with a hollow structureTMThe masking polymer E is preferably used in an amount of 3 to 5 parts by weight.
The roof heat-insulating anticorrosive anti-bubble flexible decorative coating also comprises a polymer Lepaiku with a hollow structureTMThe masking polymer E is preferably used in an amount of 3.5 to 4.5 parts by weight.
In the flexible decorative coating for roof heat insulation, corrosion prevention and water bubble resistance, the solid content of the pure acrylic emulsion is 40-50%, and the viscosity at 25 ℃ is 300-1000 cp.
Simultaneously, the invention also discloses a preparation method of the roof heat-insulating anticorrosion water-bubble-resistant flexible decorative coating, which is obtained by adding vitrified micro-beads, titanium white slurry, carbon fibers and silica sol into pure acrylic emulsion, uniformly stirring and dispersing, then adding novolac epoxy resin, adding high-alumina cement with the label of 425 into a system, and uniformly stirring.
The invention has the advantages of
Compared with the prior art, the heat-insulating and anti-corrosion coating has the characteristics of excellent heat insulation, corrosion resistance and water bubble resistance, is flexible coating, can be treaded, and can be suitable for temperature change to carry out proper extension.
In the present invention, the novolac epoxy resin has the following characteristics: the epoxy group functionality of the novolac epoxy resin is more than 2, and the epoxy group functionality of the common bisphenol A epoxy resin is 2, so that the novolac epoxy coating has higher crosslinking density and stronger anticorrosion capability than the bisphenol A epoxy coating. The phenolic epoxy paint is cured by adopting an amine curing agent, and a completely cured coating film has good corrosion resistance, chemical resistance, heat resistance (including heat-resistant electrolyte) and wear resistance, and is widely applied to corrosion prevention systems with higher requirements on chemical resistance and temperature resistance, such as a slurry cabin, a sewage cabin, the inner wall of a storage tank, a chemical-resistant inner lining and the like of an ocean oil production platform.
The pure acrylic emulsion is mainly used for external wall emulsion paint and various color coatings. Can also be suitable for high-grade interior wall paint, can be used for producing high-grade stone paint and exterior wall cement paint by being matched with silica sol,
the vitrified micro bubbles form certain particle strength due to surface vitrification, have very stable physical and chemical properties and strong aging resistance and weather resistance, have excellent heat insulation, fire prevention and sound absorption properties, and are suitable for being used as light filling aggregates and heat insulation, fire prevention, sound absorption and heat insulation materials in various fields. In the building material industry, the vitrified micro bubbles are used as lightweight aggregate, so that the workability and the self-resistance strength of mortar can be improved, the material shrinkage rate is reduced, the comprehensive performance of products is improved, and the comprehensive production cost is reduced.
The titanium white paste belongs to one kind of color paste, and is combined with polymer Lepaiku with hollow structure in the optimized schemeTMpioneer-E covering polymer compatible, hollow structured polymer leprechauerTMThe masking polymer E is capable of reducing the dosage of titanium white slurry, improving the scrub resistance of the interior wall coating and the stain resistance of the exterior wall coating, and simultaneously enabling the hand feeling of a paint film to be smoother.
The carbon fibers are used in the invention, and are mainly used for enhancing the strength of the paint film and ensuring that the paint film has better structural strength under the condition of certain ductility.
The invention has the following particular advantages: the coating is composed of phenolic epoxy resin and pure acrylic emulsion serving as organic matters, so that the coating can be suitable for outer walls, is high-temperature resistant and has good corrosivity, heat insulation and sound absorption are realized by selecting the vitrified micro bubbles, and the overall strength of the coating is improved by selecting the carbon fibers. And the substances have a synergistic effect, the combination of the novolac epoxy resin, the acrylic emulsion and the 425 high-alumina cement can enable the reinforcing effect of the carbon fiber to be more obvious, and the phenolic epoxy resin, the acrylic emulsion and the 425 high-alumina cement have the advantages of being applicable to roofs, capable of loading heavy objects and excellent in ductility.
Drawings
Fig. 1 shows the results of the freeze-thaw cycle performance tests of example 1, comparative example 1, and comparative example 2.
Detailed Description
The invention will now be further described with reference to the following examples, which are not to be construed as limiting the invention in any way, and any limited number of modifications which can be made within the scope of the claims of the invention are still within the scope of the claims of the invention.
In order to explain the technical contents of the present invention in detail, the following description is further made in conjunction with the embodiments.
Example 1:
a roof heat-insulating anticorrosion anti-bubble flexible decorative coating comprises the following components in parts by weight:
30 parts of novolac epoxy resin NPPN-638S;
15 parts of pure acrylic emulsion (with the solid content of 48 percent and the viscosity of 300-1000 cp at 25 ℃);
40 parts of high alumina cement with the reference number 425;
6 parts of vitrified micro bubbles with the diameter of 1-5 mu m;
2 parts of titanium white slurry;
1.5 parts of 0.5mm short carbon fiber;
4 parts of silica sol.
The preparation method comprises the following steps: adding the vitrified micro bubbles, the titanium white slurry, the carbon fibers and the silica sol into the pure acrylic emulsion, stirring and dispersing uniformly, then adding the novolac epoxy resin, adding the high-alumina cement with the number of 425 into the system, and stirring uniformly to obtain the high-alumina cement.
Example 2:
a roof heat-insulating anticorrosion anti-bubble flexible decorative coating comprises the following components in parts by weight:
20 parts of novolac epoxy resin NPPN-638S;
20 parts of pure acrylic emulsion (the solid content is 48%, and the viscosity at 25 ℃ is 300-1000 cp);
50 parts of high-alumina cement with the reference number 425;
5 parts of vitrified micro bubbles with the diameter of 1-5 mu m;
3 parts of titanium white slurry;
1 part of 0.5mm short carbon fiber;
3 parts of silica sol.
Example 3
A roof heat-insulating anticorrosion anti-bubble flexible decorative coating comprises the following components in parts by weight:
40 parts of novolac epoxy resin NPPN-638S;
10 parts of pure acrylic emulsion (the solid content is 48%, and the viscosity at 25 ℃ is 300-1000 cp);
30 parts of high-alumina cement with the reference number 425;
10 parts of vitrified micro bubbles with the diameter of 1-5 mu m;
2 parts of titanium white slurry;
2 parts of 0.5mm short carbon fiber;
5 parts of silica sol.
Example 4
A roof heat-insulating anticorrosion anti-bubble flexible decorative coating comprises the following components in parts by weight:
30 parts of novolac epoxy resin NPPN-638S;
15 parts of pure acrylic emulsion (with the solid content of 48 percent and the viscosity of 300-1000 cp at 25 ℃);
40 parts of high alumina cement with the reference number 425;
6 parts of vitrified micro bubbles with the diameter of 1-5 mu m;
2 parts of titanium white slurry;
1.5 parts of 0.5mm short carbon fiber;
4 parts of silica sol;
hollow structured polymer lepisTMpioneer-E covering Polymer 3 parts.
Example 5
A roof heat-insulating anticorrosion anti-bubble flexible decorative coating comprises the following components in parts by weight:
30 parts of novolac epoxy resin NPPN-638S;
15 parts of pure acrylic emulsion (with the solid content of 48 percent and the viscosity of 300-1000 cp at 25 ℃);
40 parts of high alumina cement with the reference number 425;
6 parts of vitrified micro bubbles with the diameter of 1-5 mu m;
1 part of titanium white slurry;
1.5 parts of 0.5mm short carbon fiber;
4 parts of silica sol;
hollow structured polymer lepisTMpioneer-E covering Polymer 3 parts.
Comparative example 1
The same as in example 1, except that the novolac epoxy resin NPPN-638S was replaced with styrene acrylic emulsion TIANBA 2012.
Comparative example 2
In general, the same as in example 5, except that the novolac epoxy resin NPPN-638S was replaced with styrene acrylic emulsion TIANBA 2012.
Performance testing
The invention mainly tests the water resistance, the freeze-thaw cycle performance, the alkali resistance and the flexibility of the paint film formed by adopting the above examples 1, 4 and 5 and the comparative examples 1 and 2.
The water resistance test can be tested by referring to the method specified in GB/T1733-1993A;
the freeze-thaw cycle performance test can be carried out by referring to the method specified by JG/T25, and the freeze-thaw cycle performance test is carried out for 5 times of cycles, wherein each cycle comprises soaking in water with the temperature of 23 +/-2 ℃ for 18 hours, freezing at the temperature of-20 +/-2 ℃ for 3 hours and baking at the temperature of 50 +/-2 ℃ for 3 hours.
The alkali resistance performance test can be implemented by referring to the method specified in GB/T9265;
the flexibility test can be carried out by referring to the test method of GB/T1731-93;
the test results are shown in Table 1 below
| Water resistance test | Freeze-thaw cycle performance test | Alkali resistance | Flexibility | |
| Example 1 | No abnormality | Without cracking | No abnormality | Without cracking |
| Example 4 | No abnormality | Without cracking | No abnormality | Without cracking |
| Example 5 | No abnormality | Without cracking | No abnormality | Without cracking |
| Comparative example 1 | No abnormality | With slight reticulate cracking | No abnormality | With slight reticulate cracking |
| Comparative example 2 | No abnormality | With slight reticulate cracking | No abnormality | With obvious cracks |
Fig. 1 shows the test results of the freeze-thaw cycle performance tests of example 1, comparative example 1, and comparative example 2.
Through the tests, the combination of the novolac epoxy resin, the acrylic emulsion and the 425 high-alumina cement can enable the reinforcing effect of the carbon fiber to be more obvious, the carbon fiber has better performance in a freeze-thaw cycle experiment and flexibility performance, and the epoxy resin, acrylic emulsion and 425 high-alumina cement are applicable to the roof and have the advantages of being capable of loading heavy objects and having excellent ductility.
The formula of the coating is low in alkali content and high in emulsion content, and the coating is high in content of high-alumina cement, but the formula optimization can still endow the coating with excellent water resistance and alkali resistance and simultaneously provide excellent strength and flexibility.
Claims (6)
1. The flexible decorative coating for the roof, which is heat-insulating, anticorrosive and bubble-resistant, is characterized by comprising the following components in parts by weight:
20-40 parts of novolac epoxy resin;
10-20 parts of pure acrylic emulsion;
30-50 parts of high-alumina cement with the reference number 425;
5-10 parts of vitrified micro bubbles;
1-3 parts of titanium white slurry;
1-2 parts of carbon fiber;
3-5 parts of silica sol.
2. The flexible decorative coating for roofing heat insulation, corrosion prevention and water bubble resistance of claim 1, which is characterized by comprising the following components in parts by weight:
22-26 parts of novolac epoxy resin;
14-18 parts of pure acrylic emulsion;
42-48 parts of high-alumina cement with the reference number 425;
6-8 parts of vitrified micro bubbles;
1.5-2.5 parts of titanium white slurry;
1.2-1.7 parts of carbon fiber;
3.5-4.5 parts of silica sol.
3. The flexible decorative coating of claim 1, further comprising a hollow structured polymer leprechy coatingTMThe masking polymer E is preferably used in an amount of 3 to 5 parts by weight.
4. The flexible decorative coating of claim 3, further comprising a hollow structured polymer leprechy coatingTMThe masking polymer E is preferably used in an amount of 3.5 to 4.5 parts by weight.
5. The flexible decorative coating for roofing heat insulation, corrosion prevention and water bubble resistance of claim 1, wherein the solid content of the acrylic emulsion is 40-50%, and the viscosity at 25 ℃ is 300-1000 cp.
6. A preparation method of a roof heat-insulating anticorrosion water-bubble-resistant flexible decorative coating is characterized by adding vitrified micro-beads, titanium white slurry, carbon fibers and silica sol into a pure acrylic emulsion, uniformly stirring and dispersing, then adding phenolic epoxy resin, adding 425-numbered high-alumina cement into a system, and uniformly stirring to obtain the roof heat-insulating anticorrosion water-bubble-resistant flexible decorative coating.
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| CN104371524A (en) * | 2014-10-29 | 2015-02-25 | 安徽朗凯奇建材有限公司 | Heat-insulation fireproof water-based paint and preparation method thereof |
| CN105602375A (en) * | 2016-03-17 | 2016-05-25 | 中山摩尔化学工业有限公司 | External wall heat-insulation low-carbon energy-saving paint |
| CN107162537A (en) * | 2017-06-29 | 2017-09-15 | 上海台安实业集团有限公司 | A kind of decoration of exterior wall waterproof mortar and its preparation technology |
| CN108485419A (en) * | 2018-05-04 | 2018-09-04 | 合肥天沃能源科技有限公司 | A kind of external wall special-purpose thermal insulation insulating moulding coating and preparation method thereof |
| CN109437767A (en) * | 2018-12-25 | 2019-03-08 | 浙江厦光涂料有限公司 | A kind of Advanced Inorganic decoration mortar imitates brick painting design and its construction method |
| CN111320907A (en) * | 2020-03-17 | 2020-06-23 | 中山火炬职业技术学院 | Water-based thin composite heat-insulating coating and preparation method thereof |
-
2021
- 2021-10-01 CN CN202111167081.0A patent/CN113861733A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104356700A (en) * | 2014-10-20 | 2015-02-18 | 佛山市顺德区数码彩涂料有限公司 | JS (Polymer Cement) waterproof alkali-resistant environment-friendly paint for exterior wall |
| CN104371524A (en) * | 2014-10-29 | 2015-02-25 | 安徽朗凯奇建材有限公司 | Heat-insulation fireproof water-based paint and preparation method thereof |
| CN105602375A (en) * | 2016-03-17 | 2016-05-25 | 中山摩尔化学工业有限公司 | External wall heat-insulation low-carbon energy-saving paint |
| CN107162537A (en) * | 2017-06-29 | 2017-09-15 | 上海台安实业集团有限公司 | A kind of decoration of exterior wall waterproof mortar and its preparation technology |
| CN108485419A (en) * | 2018-05-04 | 2018-09-04 | 合肥天沃能源科技有限公司 | A kind of external wall special-purpose thermal insulation insulating moulding coating and preparation method thereof |
| CN109437767A (en) * | 2018-12-25 | 2019-03-08 | 浙江厦光涂料有限公司 | A kind of Advanced Inorganic decoration mortar imitates brick painting design and its construction method |
| CN111320907A (en) * | 2020-03-17 | 2020-06-23 | 中山火炬职业技术学院 | Water-based thin composite heat-insulating coating and preparation method thereof |
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