CN115678322A - Reflective heat-insulation stone-like coating and preparation method thereof - Google Patents
Reflective heat-insulation stone-like coating and preparation method thereof Download PDFInfo
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- CN115678322A CN115678322A CN202211362014.9A CN202211362014A CN115678322A CN 115678322 A CN115678322 A CN 115678322A CN 202211362014 A CN202211362014 A CN 202211362014A CN 115678322 A CN115678322 A CN 115678322A
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Abstract
The invention provides a reflective heat-insulation stone-like coating and a preparation method thereof, which comprises the steps of adding a xonotlite solution, titanium dioxide, talcum powder, light calcium, heavy calcium, half wetting agent, half dispersing agent and half defoaming agent into a beaker for uniform mixing; preparing slurry by mechanically dispersing and ultrasonically dispersing the mixed solution; adding the prepared slurry into the styrene-acrylic emulsion, and mixing and stirring uniformly; adding half of dispersing agent, glycol, half of defoaming agent, film forming assistant, mildew preventive and flatting agent into the solution, and then preparing coating paint liquid through mechanical dispersion; finally, adding a thickening agent to prepare the stone-like coating. The beneficial effects are that: the diamond titanium dioxide can improve the heat reflection performance of the coating, has high refractive index, can reflect the radiation of most of sunlight, can weaken the temperature rise of the surface of the coating, introduces micro bubbles into the coating by the xonotlite, increases the heat resistance inside the coating, further weakens the transmission of heat flow in the coating, and has more excellent heat insulation performance under the synergistic effect of the diamond titanium dioxide and the xonotlite.
Description
Technical Field
The invention relates to the field of stone-like coatings, in particular to a reflective heat-insulation stone-like coating and a preparation method thereof.
Background
The stone-like coating is a coating with natural stone effect after construction, is used as one of high-performance building coatings, is simple to construct, has high stain resistance and weather resistance, is low in price and light in weight, and is widely applied to building outer walls.
The first stone-like paint was water-brushed stone, which was made by mixing cement, small stones and pigment with water. After the wall surface is decorated by the water brushing stone, the wall surface has the natural texture of the stone, and the color is predominant, beautiful and pollution-resistant. However, the brushite has a defect that lime contained in the brushite is easily pulverized and falls off, so that the retention time of the decorated wall surface is short. The stone-like paint is the second generation stone-like paint, which is a thick paste type building paint prepared by using synthetic resin emulsion as a base material, using natural colored sand with different grain diameters as an aggregate and adding various assistants. The third generation stone-like paint is granite-like paint, belongs to the category of stone-like paint, and is pure water-based sand wall-shaped building paint without any solvent. The artificial granite real stone paint is rich in the vivid effect of natural granite, shows the noble grade of the granite, is a novel upgrading substitute of the traditional natural real stone paint, is compared with the real stone paint, has more rich layering of the color of a building, and has the advantages of poor storage stability and short storage time.
The heat insulating paint for outer wall of building is one kind of functional paint capable of weakening heat transfer effectively and raising the heat insulating performance of building. The heat insulation coating can be divided into a heat insulation type coating which is added with heat insulation filler to reduce the heat conductivity coefficient of a coating, a reflection type coating which reflects solar radiation to reduce the temperature rise of a wall body and a radiation type coating which absorbs the solar radiation and radiates the solar radiation out again by utilizing an infrared window according to different heat insulation principles. Due to the limitation of the thickness of the coating of the building exterior wall coating, the heat insulation performance of the coating cannot be greatly improved only by changing the single heat transfer performance of the coating, and the application is greatly limited.
Disclosure of Invention
The invention provides a reflective heat-insulation stone-like coating and a preparation method thereof based on at least one of the technical problems.
A reflective insulation stone-like coating comprising:
the component A comprises: according to the parts by weight: 250 to 300 parts of xonotlite solution, 20 to 30 parts of titanium dioxide, 5 to 20 parts of talcum powder, 53 parts of light calcium 1~2 parts of heavy calcium 2~5 parts of wetting agent, 0.1 to 0.3 part of dispersing agent, 0.2 to 0.3 part of defoaming agent and 0.05 to 0.1 part of defoaming agent;
and B component: according to the parts by weight: 30 to 40 parts of styrene-acrylic emulsion, 0.2 to 0.3 part of dispersant, 0.1 to 0.3 part of wetting agent, 1~3 part of ethylene glycol, 0.01 to 0.05 part of defoamer, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor, 0.2 to 0.5 part of flatting agent and 1~2 parts of thickener.
Further, the xonotlite solution is synthesized by lime, quartz powder and water through a dynamic hydrothermal method, wherein the lime and the quartz powder account for 10% -20%, the balance is water, and the quartz and the lime are mixed according to a molar ratio of 0.9 to 1.1.
Further, the titanium dioxide is diamond titanium dioxide.
A preparation method of a reflective heat insulation type stone-like coating comprises the following steps:
step 1, adding 250-300 parts of xonotlite solution, 20-30 parts of titanium dioxide, 5-20 parts of talcum powder, 3238 parts of light calcium, 3262 parts of heavy calcium, 0.1-0.3 part of wetting agent, 0.2-0.3 part of dispersing agent and 0.05-0.1 part of defoaming agent into a beaker, and uniformly mixing to obtain a mixed solution;
step 2, preparing slurry by mechanically dispersing and ultrasonically dispersing the mixed solution in the step 1;
step 3, adding the prepared slurry into 30-40 parts of the styrene-acrylic emulsion, and mixing and stirring uniformly;
step 4, adding 0.2 to 0.3 part of dispersing agent, 0.1 to 0.3 part of wetting agent, 1~3 of ethylene glycol, 0.01 to 0.05 part of defoaming agent, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor and 0.2 to 0.5 part of flatting agent into the solution in the step 3, and then preparing paint liquid by mechanical dispersion;
and 5, adding 1~2 parts of thickening agent into the paint liquid and mixing to obtain the stone-like paint.
Further, the preparation method of the xonotlite solution comprises the following steps: mixing lime and quartz powder according to the molar ratio of 0.9 to 1.1, adding water which is 10 to 20 times of the total weight of the lime and the quartz powder into the mixture, uniformly stirring the mixture, and adding the mixture into an autoclave with a stirring device.
Further, heating to 200-220 ℃ at the speed of 1.5 ℃/min in an autoclave, keeping the steam pressure at 2.0-2.5 MPa, preserving the heat for 6~8 hours, and naturally cooling to room temperature to obtain the xonotlite solution.
Has the advantages that: the diamond titanium dioxide can improve the heat reflection performance of the coating, has high refractive index, can reflect the radiation of most of sunlight, can weaken the temperature rise of the surface of the coating, introduces micro bubbles into the coating by the xonotlite, increases the heat resistance inside the coating, further weakens the transmission of heat flow in the coating, and has more excellent heat insulation performance under the synergistic effect of the diamond titanium dioxide and the xonotlite.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be described in further detail with reference to specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
A reflective insulation stone-like coating comprising:
the component A comprises: according to the parts by weight: 250 to 300 parts of xonotlite solution, 20 to 30 parts of titanium dioxide, 5 to 20 parts of talcum powder, 53 parts of light calcium 1~2 parts of heavy calcium 2~5 parts of wetting agent, 0.1 to 0.3 part of dispersing agent, 0.2 to 0.3 part of defoaming agent and 0.05 to 0.1 part of defoaming agent;
and B component: according to the parts by weight: 30 to 40 parts of styrene-acrylic emulsion, 0.2 to 0.3 part of dispersant, 0.1 to 0.3 part of wetting agent, 1~3 part of ethylene glycol, 0.01 to 0.05 part of defoamer, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor, 0.2 to 0.5 part of flatting agent and 1~2 parts of thickener.
The xonotlite solution is synthesized by lime, quartz powder and water through a dynamic hydrothermal method, wherein the lime and the quartz powder account for 10% -20%, the balance is water, and the quartz and the lime are mixed according to a molar ratio of 0.9 to 1.1.
The titanium dioxide is diamond titanium dioxide.
A preparation method of a reflective heat insulation type stone-like coating comprises the following steps:
preparing a xonotlite solution in advance, wherein the preparation method of the xonotlite solution comprises the following steps: mixing lime and quartz powder according to the molar ratio of 0.9 to 1.1, adding water which is 10 to 20 times of the total weight of the lime and the quartz powder into the mixture, uniformly stirring the mixture, and adding the mixture into an autoclave with a stirring device, wherein the reaction conditions are as follows: heating to 200-220 ℃ at the speed of 1.5 ℃/min, keeping the steam pressure at 2.0-2.5 MPa, preserving the heat for 6~8 hours, and then naturally cooling to room temperature to obtain the xonotlite solution.
Step 1, adding 250-300 parts of xonotlite solution, 20-30 parts of titanium dioxide, 5-20 parts of talcum powder, 3238 parts of light calcium, 3262 parts of heavy calcium, 0.1-0.3 part of wetting agent, 0.2-0.3 part of dispersing agent and 0.05-0.1 part of defoaming agent into a beaker, and uniformly mixing to obtain a mixed solution;
step 2, preparing slurry by mechanically dispersing and ultrasonically dispersing the mixed solution in the step 1;
step 3, adding the prepared slurry into 30-40 parts of the styrene-acrylic emulsion, and mixing and stirring uniformly;
step 4, adding 0.2 to 0.3 part of dispersing agent, 0.1 to 0.3 part of wetting agent, 1~3 of ethylene glycol, 0.01 to 0.05 part of defoaming agent, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor and 0.2 to 0.5 part of flatting agent into the solution in the step 3, and then preparing paint liquid by mechanical dispersion;
and 5, adding 1~2 parts of thickening agent into the paint liquid and mixing to obtain the stone-like paint.
Example one
The component A comprises: according to the parts by weight: 250 parts of xonotlite solution, 30 parts of titanium dioxide, 20 parts of talcum powder, 1 part of light calcium, 4 parts of heavy calcium, 0.2 part of wetting agent, 0.2 part of dispersing agent and 0.05 part of defoaming agent;
and B component: according to the parts by weight: 40 parts of styrene-acrylic emulsion, 0.2 part of dispersant, 0.2 part of wetting agent, 2 parts of ethylene glycol, 0.05 part of defoaming agent, 1.5 parts of film-forming assistant, 0.2 part of mildew preventive, 0.5 part of flatting agent and 1 part of thickening agent.
Step 1, adding 250 parts of xonotlite solution, 30 parts of titanium dioxide, 20 parts of talcum powder, 1 part of light calcium, 4 parts of heavy calcium, half part of wetting agent, half part of dispersing agent and half part of defoaming agent into a beaker, and uniformly mixing to obtain a mixed solution;
step 2, preparing slurry by mechanically dispersing and ultrasonically dispersing the mixed solution obtained in the step 1;
step 3, adding the prepared slurry into 40 parts of styrene-acrylic emulsion, and uniformly mixing and stirring;
step 4, adding the remaining half of the dispersing agent, half of the wetting agent, half of the defoaming agent, 2 parts of ethylene glycol, 1.5 parts of the film-forming assistant, 0.2 part of the mildew preventive and 0.5 part of the flatting agent into the solution obtained in the step 3, and then preparing a coating paint liquid through mechanical dispersion;
and 5, adding 1 part of thickening agent into the paint liquid and mixing to obtain the stone-like paint.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A stone-like coating of reflective insulation type, comprising:
the component A comprises: according to the parts by weight: 250 to 300 parts of xonotlite solution, 20 to 30 parts of titanium dioxide, 5 to 20 parts of talcum powder, 53 parts of light calcium 1~2 parts of heavy calcium 2~5 parts of wetting agent, 0.1 to 0.3 part of dispersing agent, 0.2 to 0.3 part of defoaming agent and 0.05 to 0.1 part of defoaming agent;
and the component B comprises: according to the parts by weight: 30 to 40 parts of styrene-acrylic emulsion, 0.2 to 0.3 part of dispersant, 0.1 to 0.3 part of wetting agent, 1~3 part of ethylene glycol, 0.01 to 0.05 part of defoamer, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor, 0.2 to 0.5 part of flatting agent and 1~2 parts of thickener.
2. The reflective insulation type stone-like coating according to claim 1, characterized in that: the xonotlite solution is synthesized by lime, quartz powder and water through a dynamic hydrothermal method, wherein the lime and the quartz powder account for 10% -20%, the balance is water, and the quartz and the lime are mixed according to a molar ratio of 0.9 to 1.1.
3. The reflective insulation type stone-like coating according to claim 1, characterized in that: the titanium dioxide is diamond titanium dioxide.
4. The method of claim 1~3 of a reflective insulation stone-like coating, comprising the steps of:
step 1, adding 250-300 parts of xonotlite solution, 20-30 parts of titanium dioxide, 5-20 parts of talcum powder, 3238 parts of light calcium, 3262 parts of heavy calcium, 0.1-0.3 part of wetting agent, 0.2-0.3 part of dispersing agent and 0.05-0.1 part of defoaming agent into a beaker, and uniformly mixing to obtain a mixed solution;
step 2, preparing slurry by mechanically dispersing and ultrasonically dispersing the mixed solution in the step 1;
step 3, adding the prepared slurry into 30-40 parts of the styrene-acrylic emulsion, and mixing and stirring uniformly;
step 4, adding 0.2 to 0.3 part of dispersing agent, 0.1 to 0.3 part of wetting agent, 1~3 of ethylene glycol, 0.01 to 0.05 part of defoaming agent, 1~2 parts of film-forming assistant, 0.1 to 0.2 part of mildew inhibitor and 0.2 to 0.5 part of flatting agent into the solution in the step 3, and then preparing paint liquid by mechanical dispersion;
and 5, adding 1~2 parts of thickening agent into the paint liquid and mixing to obtain the stone-like paint.
5. The method for preparing the reflective insulation type stone-like coating according to claim 4, wherein the method for preparing the xonotlite solution comprises the following steps: mixing lime and quartz powder according to the molar ratio of 0.9 to 1.1, adding water which is 10 to 20 times of the total weight of the lime and the quartz powder into the mixture, uniformly stirring the mixture, and adding the mixture into an autoclave with a stirring device.
6. The reflective insulation type stone-like coating and the preparation method thereof as claimed in claim 5, wherein the temperature is raised to 200 to 220 ℃ at a speed of 1.5 ℃/min in an autoclave, the steam pressure is kept at 2.0 to 2.5MPa, the temperature is kept for 6~8 hours, and then the temperature is naturally reduced to room temperature to obtain the xonotlite solution.
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| CN102229765A (en) * | 2011-04-28 | 2011-11-02 | 贵州大学 | Composite heat insulation thin layer emulsion paint for building exterior wall |
| CN108485394A (en) * | 2018-04-17 | 2018-09-04 | 邹奇峰 | A kind of stain resistant type silica sol-acrylic emulsion composite exterior wall insulating moulding coating |
| CN108504204A (en) * | 2018-04-19 | 2018-09-07 | 佛山市康东照明科技有限公司 | A kind of nano-titanium dioxide styrene-acrylic emulsion compound heat-insulation coating |
| CN108504203A (en) * | 2018-04-17 | 2018-09-07 | 邹奇峰 | Nano-silicon dioxide modified phenylpropyl alcohol exterior wall compound heat-insulation coating and preparation method thereof |
| CN111978807A (en) * | 2020-09-18 | 2020-11-24 | 杨昊天 | Heat-preservation and heat-insulation coating and preparation method thereof |
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2022
- 2022-11-02 CN CN202211362014.9A patent/CN115678322A/en active Pending
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| CN102229765A (en) * | 2011-04-28 | 2011-11-02 | 贵州大学 | Composite heat insulation thin layer emulsion paint for building exterior wall |
| CN108485394A (en) * | 2018-04-17 | 2018-09-04 | 邹奇峰 | A kind of stain resistant type silica sol-acrylic emulsion composite exterior wall insulating moulding coating |
| CN108504203A (en) * | 2018-04-17 | 2018-09-07 | 邹奇峰 | Nano-silicon dioxide modified phenylpropyl alcohol exterior wall compound heat-insulation coating and preparation method thereof |
| CN108504204A (en) * | 2018-04-19 | 2018-09-07 | 佛山市康东照明科技有限公司 | A kind of nano-titanium dioxide styrene-acrylic emulsion compound heat-insulation coating |
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