CN115851045A - Special functional coating for building interior and exterior walls - Google Patents
Special functional coating for building interior and exterior walls Download PDFInfo
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- CN115851045A CN115851045A CN202211707453.9A CN202211707453A CN115851045A CN 115851045 A CN115851045 A CN 115851045A CN 202211707453 A CN202211707453 A CN 202211707453A CN 115851045 A CN115851045 A CN 115851045A
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Abstract
The invention uses microcapsule technology to endow the paint for the inner and outer walls of buildings with various functionalities. The invention provides a special functional coating for inner and outer walls of buildings, which comprises the following components in percentage by mass: 25-70% of acrylic emulsion; 5-60% of special functional microcapsules; 0-25% of titanium dioxide; 0 to 25 percent of other fillers; the additive is less than or equal to 5 percent; the balance being water. The special functional coating for the inner and outer walls of the building, provided by the invention, has one or more of special functions of intelligent temperature regulation, photochromism, thermochromic property, corrosion and mildew resistance, flame retardance and fire resistance, long-acting fragrance retention, mosquito repelling and insect repelling and the like, and can further meet the diversified and personalized requirements of people on the building coating. By using the same principle and technology, more diverse coating functionality can be popularized and realized.
Description
Technical Field
The invention relates to the technical field of functional building coatings, in particular to a special functional coating for inner and outer walls of a building.
Background
With the improvement of living standard, the requirements of people on the building coating are not limited to basic protection and decoration functions any more, and the complicated and various special functional coatings can better meet the diversified and personalized requirements of people. Nowadays, coatings with special functionalities such as intelligent temperature regulation, flame retardation and fire protection, photochromism, heat reflection, self-cleaning, etc. are also gradually coming into the field of people.
The technology of encapsulating materials in specific shell materials to form micron-sized capsules is the microcapsule technology. The microcapsule technology can effectively change the characteristics of the raw materials such as state, size, appearance, surface performance and the like, and has the effects of isolating and protecting the inner core material.
The invention aims to encapsulate different functional materials by utilizing a microcapsule technology, and can endow the coating with various different even composite functionalities when being applied to the field of coatings.
Disclosure of Invention
The invention aims to: the microcapsule technology is utilized to endow the coating for the inner and outer walls of the building with multiple functions. A series of special functional coatings for internal and external walls of buildings based on microcapsule technology are provided, including but not limited to intelligent temperature-adjusting coatings, photochromic coatings, thermochromic coatings, anticorrosion and mildew-proof coatings, flame-retardant and fireproof coatings, long-acting fragrance-retaining coatings, mosquito-repellent and insect-repellent coatings and the like.
The technical scheme adopted by the invention is as follows:
the special functional coating for the inner and outer walls of the building comprises the following components in percentage by mass:
the special functional microcapsule exists in the form of stable dispersed water slurry or dried powder.
Preferably, the special functional microcapsules comprise: one or more of phase-change temperature-adjusting microcapsules, photochromic microcapsules, thermochromic microcapsules, anticorrosion and mildew-proof microcapsules, flame-retardant and fireproof microcapsules, long-acting fragrance-retaining microcapsules and mosquito and insect repelling microcapsules.
Preferably, the particle size of the special functional microcapsule is 0.1-100 μm, the shell material is organic polymer shell material, and the microscopic morphology is relatively uniform spherical.
The inventors illustrate the preparation of special functional microcapsules. The special functional microcapsule is prepared by the following steps: adding polystyrene into ethyl acetate to be completely dissolved to obtain a prefabricated material; adding the liquid core material and the emulsifier into the prefabricated material, uniformly stirring, then dropwise adding into high-speed stirring deionized water, stirring at the speed of 1000-2000r/min, standing for 1-3h, centrifuging, washing for 1-3 times by using petroleum ether, and drying to obtain the special functional microcapsule.
Preferably, the mass ratio of polystyrene to ethyl acetate is 1-2:10-20.
Preferably, the mass ratio of the polystyrene to the core material to the emulsifier is 1-2:2-6:0.1-1.
Preferably, the emulsifier is span-60.
According to the invention, the core material is coated with the organic polymer shell material, so that the core material is not influenced by the external environment and is protected, and simultaneously:
1. the microcapsule has uniform particle size distribution and can play a sufficient filling role in the coating;
2. the microcapsules have consistent appearance and are all in a regular spherical shape;
3. the microcapsules are uniformly dispersed in a coating system, no layering exists in the coating forming process, and the influence on the construction performance of the coating, such as curing time, operation temperature and the like, is small;
4. the microcapsule shell material is stable and firm, durable and weather-proof, and can support the coating to stably exert special functions for a long time;
5. the method adopts a completely formaldehyde-free technology, and is green and environment-friendly.
The intelligent temperature-regulating microcapsule with special function selects paraffin with phase-change temperature of 20-28 ℃ as a core material, and adopts a high-molecular shell material to carry out microencapsulation treatment, so as to prepare intelligent temperature-regulating microcapsule slurry stably dispersed in water.
The photochromic special functional microcapsule is prepared by taking an organic photochromic material as a core material, performing microencapsulation treatment by adopting a high-molecular shell material to prepare photochromic microcapsule slurry dispersed in water, and then preparing photochromic special functional microcapsule powder with uniform particle size by using a spray drying method.
The special functional microcapsule for lasting fragrance is prepared by taking fragrance as a core material and adopting a high-molecular shell material for microencapsulation treatment, so that the microcapsule slurry for lasting fragrance which is stably dispersed in water is prepared.
The special functional microcapsule for repelling mosquito and expelling insects selects natural mosquito and expelling insect essential oil as a core material, and adopts a high molecular shell material to carry out microencapsulation treatment, so as to prepare the durable fragrance-retaining microcapsule slurry stably dispersed in water.
Further preferably, the particle size of the special functional microcapsule is 5-30 μm.
Preferably, the acrylic emulsion is at least one of styrene-acrylic emulsion, pure acrylic emulsion and vinyl acetate-acrylic emulsion, and is a film forming agent commonly used in latex paints.
Preferably, the titanium dioxide is rutile type titanium dioxide, the micro morphology is sheet-shaped, and the particle size is 5-20 μm.
Preferably, the filler is at least one of light calcium carbonate, heavy calcium carbonate, talcum powder and kaolin.
Preferably, the auxiliary agent is at least one of a thickener, a leveling agent, and a dispersion stabilizer.
The invention has the beneficial effects that: the special functional coating for the inner and outer walls of the building, provided by the invention, has one or more of special functions of intelligent temperature adjustment, photochromism, thermochromic, corrosion and mildew prevention, flame retardance and fire prevention, long-acting fragrance retention, mosquito repelling and insect repelling and the like, and can further meet the diversified and personalized requirements of people on the building coating. By using the same principle and technology, more diverse coating functionality can be popularized and realized.
Detailed Description
The technical solution of the present invention will be described in detail by specific examples.
Example 1
Intelligent temperature regulation special function microcapsule: selecting paraffin with the phase transition temperature of 20-28 ℃ as a core material, and performing microencapsulation treatment by using a high molecular shell material, specifically:
adding 1.5kg of polystyrene into 12kg of ethyl acetate to be completely dissolved to obtain a prefabricated material; heating and melting 5kg of paraffin with the phase transition temperature of 20-28 ℃, adding 0.2kg of span-60 into the prefabricated material, stirring uniformly at the temperature of 32 ℃, then dropwise adding into 120kg of deionized water stirred at a high speed, stirring at 1200r/min, standing for 2h, centrifuging, washing for 2 times by adopting petroleum ether, and dispersing in water to obtain intelligent temperature-regulating microcapsule slurry, wherein the solid content of the slurry is about 40%, and the average particle size of the microcapsule is about 20 mu m.
The intelligent temperature-regulating special functional coating comprises the following components in percentage by mass:
the prepared intelligent temperature-regulating special functional coating has the following characteristics: the operation temperature of the coating is-5 to 40 ℃, the surface drying time is less than 4 hours, the leveling property is good, and the repainting property is good; the coating thickness is 20-30 mu m by single brushing. The coating has better covering power and strength, is wear-resistant and water-resistant, and has milky color.
The house adopting the intelligent temperature-regulating special functional coating can reduce the maximum temperature difference between day and night from 16 ℃ to 5 ℃, reduce the maximum temperature in summer from 7 to 8 ℃ and increase the minimum temperature in winter from 3 to 4 ℃ under the condition of not using temperature control equipment.
Example 2
Photochromic special functional microcapsules: the preparation method comprises the following steps of (1) selecting an organic photochromic material as a core material, and carrying out microencapsulation treatment by using a high-molecular shell material, wherein the method specifically comprises the following steps:
adding 1.5kg of polystyrene into 12kg of ethyl acetate to be completely dissolved to obtain a prefabricated material; adding 5kg of organic photochromic material and 0.2kg of span-60 into the prefabricated material, stirring uniformly at the temperature of 32 ℃, then dripping into 120kg of deionized water stirred at a high speed, stirring at the speed of 1200r/min, standing for 2h, centrifuging, washing for 2 times by using petroleum ether, dispersing in water, and then preparing the photochromic special functional microcapsule powder with uniform particle size by using a spray drying method, wherein the average particle size of the microcapsule is about 10 mu m.
The photochromic special functional coating comprises the following components in percentage by mass:
the prepared photochromic special functional coating has the following characteristics: the coating has good operation performance, can adopt various construction modes such as spraying, brushing, roller coating and the like, and can be applied to other coatings; the formed coating has better covering power and strength, is wear-resistant and water-resistant, and shows different colors in dark and under illumination. The formed coating can generate rapid and reversible color change under ultraviolet illumination, comprises various colors such as white-yellow, white-red, white-blue and the like, and can be matched with construction tools to coat different patterns and figures.
Example 3
Lasting fragrance special function microcapsule: microencapsulating the floral essence to obtain a durable fragrance-retaining microcapsule slurry stably dispersed in water, wherein the solid content of the slurry is about 40%, and the average particle size of the microcapsule is about 20 μm.
The special functional microcapsule for repelling mosquitoes and expelling insects comprises: the natural mosquito-repellent and insect-repellent essential oil is subjected to microencapsulation treatment to prepare the durable fragrance-retaining microcapsule slurry which is stably dispersed in water, wherein the solid content of the slurry is about 40 percent, and the average particle size of the microcapsule is about 20 mu m.
The special coating with the compound functions of lasting fragrance retention and mosquito and insect repelling comprises the following components in percentage by mass:
the prepared special coating with the compound functions of lasting fragrance, repelling mosquitoes and expelling insects has the following characteristics: the coating has good operation performance and can be applied to various substrates; the coating has strong strength and good alkali resistance, water resistance and wear resistance.
The applied wall surface can slowly release the fragrance of flowers and mosquito repelling and insect repelling components for a long time, so that a room adopting the special coating can repel and repel mosquitoes for a long time and keep the refreshing faint fragrance of flowers all the time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A special functional coating for building interior and exterior walls is characterized by comprising the following raw materials in percentage by mass:
25 to 70 percent of acrylic emulsion,
5-60% of special functional microcapsule,
the additive is less than or equal to 5 percent,
the balance being water.
2. A special functional paint for building interior and exterior walls according to claim 1, wherein the paint further comprises the following raw materials: titanium dioxide and filler, wherein the mass ratio of the titanium dioxide to the filler to the acrylic emulsion is 0-25:0-25:25-70.
3. A special functional paint for internal and external walls of buildings as claimed in claim 1, wherein the acrylic emulsion is at least one of styrene-acrylic emulsion, acrylic emulsion and acrylic emulsion.
4. A special functional paint for interior and exterior walls of buildings according to claim 1, wherein the titanium dioxide is rutile type titanium dioxide, and the particle size is 5-20 μm.
5. A special functional paint for internal and external walls of buildings according to claim 1, wherein the filler is at least one of light calcium carbonate, heavy calcium carbonate, talcum powder and kaolin.
6. A special functional paint for building interior and exterior walls according to claim 1, wherein the auxiliary agent is at least one of a thickener, a leveling agent and a dispersion stabilizer.
7. A special functional paint for building interior and exterior walls as claimed in claim 1, wherein the particle size of the special functional microcapsules is 0.1-100 μm.
8. A special functional coating for interior and exterior walls of buildings according to claim 1, wherein the core material of the special functional microcapsule is at least one of phase change temperature adjusting material, organic photochromic material, essence and essential oil.
9. A special functional coating for interior and exterior walls of buildings according to claim 8, wherein the phase-change temperature-adjusting material is paraffin with a phase-change temperature of 20-28 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211707453.9A CN115851045A (en) | 2022-12-29 | 2022-12-29 | Special functional coating for building interior and exterior walls |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211707453.9A CN115851045A (en) | 2022-12-29 | 2022-12-29 | Special functional coating for building interior and exterior walls |
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| CN115851045A true CN115851045A (en) | 2023-03-28 |
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| CN202211707453.9A Pending CN115851045A (en) | 2022-12-29 | 2022-12-29 | Special functional coating for building interior and exterior walls |
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| CN104559508A (en) * | 2014-12-29 | 2015-04-29 | 三棵树涂料股份有限公司 | Phase change microcapsule-containing thermal insulation coating and preparation method thereof |
| CN104817914A (en) * | 2015-02-03 | 2015-08-05 | 东莞暨南大学研究院 | Phase change microcapsule-type modified building coating and preparation method thereof |
| CN105199520A (en) * | 2015-08-05 | 2015-12-30 | 东莞暨南大学研究院 | Composite architectural heat-insulation coating and preparation method thereof |
| CN107964297A (en) * | 2017-08-11 | 2018-04-27 | 中国科学院化学研究所 | Compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application |
| CN110330848A (en) * | 2019-07-13 | 2019-10-15 | 武汉中科先进技术研究院有限公司 | A kind of mould proof temperature control type building coating of aqueous, environmental protective and preparation method thereof |
| CN111944371A (en) * | 2020-08-10 | 2020-11-17 | 江苏可米新材料科技有限公司 | Self-repairing temperature-adjustable functional coating and preparation method thereof |
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2022
- 2022-12-29 CN CN202211707453.9A patent/CN115851045A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152115A (en) * | 2014-07-18 | 2014-11-19 | 东南大学 | Paraffin-SiO2-TiO2 phase change microcapsule and preparation method thereof as well as application of microcapsule in preparing heat-accumulation thermal insulation coating |
| CN104497759A (en) * | 2014-12-08 | 2015-04-08 | 三棵树涂料股份有限公司 | Thermo-regulated water-based paint for interior wall and preparation method of thermo-regulated water-based paint |
| CN104559508A (en) * | 2014-12-29 | 2015-04-29 | 三棵树涂料股份有限公司 | Phase change microcapsule-containing thermal insulation coating and preparation method thereof |
| CN104817914A (en) * | 2015-02-03 | 2015-08-05 | 东莞暨南大学研究院 | Phase change microcapsule-type modified building coating and preparation method thereof |
| CN105199520A (en) * | 2015-08-05 | 2015-12-30 | 东莞暨南大学研究院 | Composite architectural heat-insulation coating and preparation method thereof |
| CN107964297A (en) * | 2017-08-11 | 2018-04-27 | 中国科学院化学研究所 | Compound phase-change coating of a kind of phase-change microcapsule of inorganic material coating and its preparation method and application |
| CN110330848A (en) * | 2019-07-13 | 2019-10-15 | 武汉中科先进技术研究院有限公司 | A kind of mould proof temperature control type building coating of aqueous, environmental protective and preparation method thereof |
| CN111944371A (en) * | 2020-08-10 | 2020-11-17 | 江苏可米新材料科技有限公司 | Self-repairing temperature-adjustable functional coating and preparation method thereof |
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