CN102702822A - SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof - Google Patents
SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof Download PDFInfo
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- CN102702822A CN102702822A CN2012101933933A CN201210193393A CN102702822A CN 102702822 A CN102702822 A CN 102702822A CN 2012101933933 A CN2012101933933 A CN 2012101933933A CN 201210193393 A CN201210193393 A CN 201210193393A CN 102702822 A CN102702822 A CN 102702822A
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Abstract
The invention provides a SiO2 freeze-drying glue composite thermal insulation exterior wall coating with low price and excellent thermal insulation effect, and a preparation method thereof. The SiO2 freeze-drying glue composite thermal insulation exterior wall coating comprises a reflecting layer and a thermal insulation layer, and is characterized in that the reflecting layer is crosslinked to a film forming matter by resin emulsion through a film forming aid and is obtained by uniformly mixing water and an infrared reflecting filling, and the infrared reflecting filling includes SiO2 freeze-drying glue; the thermal insulation layer is obtained by adding a porous material and water into a resin or white cement or lime mortar and uniformly mixing, and the porous material includes SiO2 freeze-drying glue. The SiO2 freeze-drying glue composite thermal insulation exterior wall coating, provided by the invention, has cheap raw materials and simple process. The conventional thermal insulation coating can be replaced by the obtained composite thermal insulation exterior wall coating through compounding the thermal insulation layer and the reflecting layer, and the composite thermal insulation exterior wall coating has low price and excellent thermal insulation effect. The coating, provided by the invention, can be used for surfaces of buildings, automobiles, train storage tanks and the like, the total reflectivity about sunlight is more than 80%, and the thermal insulation efficiency is 15-20 DEG C.
Description
Technical field
The present invention relates to be applied to the technical field of coatings of skin, be specially a kind of SiO
2Freeze-drying glue compound heat-insulation exterior coating and preparation method thereof.
Technical background
Traditional coating effect is mainly played effect anticorrosion and attractive in appearance to material and product surface.The functional coating of rise in recent years is as the term suggests be exactly also will to give coating certain function except satisfying attractive in appearance and anticorrosion.Functional thermal insulating coating is the seventies in 20th century whole world oil crisis period, and European countries are for alleviating the once product of policy work on a large scale of energy problem's unfolded.U.S.'s thermal insulation material for building since 1987 accounts for about 81% of all thermal insulation materials.In the AND ENERGY RESOURCES CONSUMPTION IN CHINA, building energy consumption accounts for 1/4 of national energy consumption total amount greatly, and thermal insulation material for building only accounts for about 11% of total amount, and visible building energy conservation potentiality are very big.An important applied field of thermal insulating coating is exactly an external wall.Building exterior wall heat preserving is energy-conservation to have only the development course more than 10 years in China, and before this, because relevant departments are not positive, the real estate developer is to the desalination of building energy conservation consciousness, and market is lukewarm always, and the enterprise that really is engaged in outer wall heat insulating energy saving is also few.In recent years, the greenhouse gases effect that causes along with the excessive emissions because of carbonic acid gas was more and more obvious, and the energy-saving and emission-reduction problem has become the focus of national governments.On the other hand, under the pressure of energy starved pressure, building energy conservation is all very paid attention in countries in the world at present.The support of national policy, the demand in market impels more much, research institution, enterprise and investor to begin to pay close attention to this field of building exterior wall heat preserving.The market of Chinese architecture energy-saving material is bigger, especially building thermal insulation material.The power loss of China's house dwelling house is roughly: body of wall accounts for 50%; Roofing accounts for 10%; Door and window accounts for 25%; Vault and ground account for 15%.Chinese architecture will be realized in 2010 needing fractional energy savings 50% external wall is carried out modernization overlay, and the market of wall heat insulation material will increase considerably.As far back as 2006, related data statistics, 40,000,000,000 square metres of 05 year have housings of China, about 2,000,000,000 square metres of annual newly-increased floor area of building, wherein about 95% have no conservation measures.That is to say that China has only 5% building to take the insulation measure.Also there are not much variations up to these data in 2008.
Thermal insulating coating combines the dual characteristics of coating and lagging material, is formed with certain intensity and elastic thermal insulation layer after the drying.Compare with traditional heat insulating products, its advantage is: (1) thermal conductivity is low, and heat insulation effect is remarkable; (2) can cohere with basic unit, globality is strong comprehensively, is specially adapted to the insoluble special-shaped insulation of equipment of other lagging material; (3) light weight, layer approach, and insulation is with the usable floor area that has improved dwelling house relatively in the building; (4) good flame resistance, the feature of environmental protection is strong; (5) construction is simple relatively, and the mode that can adopt manual work to smear is carried out; (6) material produce technology is simple, and energy consumption is low.
After the seventies in 20th century, generally pay attention to the production of lagging material and application under construction abroad, make every effort to reduce significantly the consumption of the energy, thereby reduce environmental pollution and Greenhouse effect.Receive the influence of factors such as historical and social and economic condition; Lower-cost compound silicate insulating paint is very fast in China's development; China has last hundred tame research units and enterprise to carry out the research work of thermal insulation coatings; Its main application is an industrial heat preservation coating, like the high-temperature pipe insulation, and perhaps insulation such as the shell of boiler, kiln etc.In architectural application also seldom.(about 300 yuan/kg) also used on a large scale at home, but market outlook are considerable really because the cost problem of the thermal insulating coatings of external research and development.In case the thermal insulating coating of a low cost, high energy-saving effect is succeeded in developing and can be used widely, and can in the whole building trade in the world, create much of a stir immediately, market potential is self-evident.
In the AND ENERGY RESOURCES CONSUMPTION IN CHINA, building energy consumption accounts for 1/4 of national energy consumption total amount greatly, and wherein the power loss of house dwelling house is roughly: body of wall accounts for 50%, and roofing accounts for 10%, and door and window accounts for 25%, and vault and ground account for 15%.According to statistics, China's have housing was 40,000,000,000 square metres in 05 year, about 2,000,000,000 square metres of annual newly-increased floor area of building, and wherein about 95% have no conservation measures.Therefore, building energy conservation market is huge.Enterprise of research institution and investor begin to pay close attention to building energy conservation, especially the insulation of external wall.At present; Energy-conservation a kind of simple and easy to do method to external wall adopts the exterior wall reflective heat-insulation paint exactly, and existing solar reflection coating is like patent CN1077730, CN1129238, CN03118007.8; Utilize ceramic fine bead or glass microballon as the reflective insulation material; Process coating and be painted on exterior wall surface, play reflex action, the microballon of hollow plays the heat-insulation and heat-preservation effect.There is following point in this type of coating: 1. coatingsurface is coarse, decorative effect is poor; 2. coating structure is single, has only reflection or heat insulation effectiveness.
Summary of the invention
The purpose of this invention is to provide a kind of inexpensive and SiO with excellent effect of heat insulation
2Freeze-drying glue compound heat-insulation exterior coating and preparation method thereof.
Compound heat-insulation exterior coating of the present invention is made up of for 2 two layers tamper 1 and thermofin, and tamper 1 is a surface layer, and thermofin 2 is a bottom.Coating structure is as shown in Figure 1.
Described tamper by the film-forming resin emulsion through the crosslinked film forming matter of doing of film coalescence aid; Said film-forming resin be meant to visible light and near infrared light absorb low, as not contain heat absorptivity C-O-C, CO ,-resin of OH group, like organic silicone resin, vinyl resin, F-C resin, benzene emulsion, pure-acrylic emulsion etc.Above-mentioned film-forming resin is solution or emulsion state.The tamper through the crosslinked film forming matter of doing of film coalescence aid, adds entry and the infrared external reflection filler mixes and gets by the film-forming resin emulsion.Film coalescence aid adopts existing known technology.Contain SiO in the said infrared external reflection filler
2Freeze-drying glue, said SiO
2Freeze-drying glue adds infrared external reflection filler, said SiO
2Freeze-drying glue is foundation disclosed Chinese patent " a kind of method of preparing nano polyporous material with large specific surface area by vacuum freeze-drying process " formerly, number of patent application: 200910037592.3 method preparation.Other compositions are selected from ZnO, Al in the said infrared external reflection filler
2O
3, crystal whisker of hexa potassium titanate nano-powder etc.
Said thermofin is by resin or white cement or lime mortar adds porous material and water mixes and gets, and contains SiO in the said porous material
2Freeze-drying glue.Other compositions of said porous material are selected from zeyssatite, glass microballon, ceramic fine bead, sepiolite etc.
Compound heat-insulation exterior coating method steps of the present invention is following:
(1) preparation in tamper: in container, add film-forming resin emulsion and film coalescence aid, stir; Add entry, SiO
2Freeze-drying glue, TiO
2Nano-powder also adds the infrared external reflection filler, stirs, and promptly obtains the tamper; Wherein, each amounts of components is following than proportioning by quality:
Film-forming resin: 20-30
Film coalescence aid: 0-5
TiO
2Nano-powder: 10-25
SiO
2Freeze-drying glue: 10-30
Infrared external reflection filler: 15-45
Water: 60-70
The composition proportioning of said infrared external reflection filler can be selected from following one or more: ZnO nano-powder, Al
2O
3Nano-powder, crystal whisker of hexa potassium titanate.
(2) preparation of thermofin: by resin or white cement or lime mortar adding porous material, said porous material is by SiO
2Freeze-drying glue is formed with other porous materials, and stirring makes; Wherein, each amounts of components is following than proportioning by quality:
Resin or white cement or lime mortar: 20-35
Film coalescence aid: 0-5
SiO
2Freeze-drying glue: 5-10
Other porous materials: 45-60
Water: 50-70
Said other porous materials can be selected from following one or more: sepiolite, glass microballon, zeyssatite.
(3) apply: be coated with thermofin earlier at building surface, tie; Be coated with the tamper at last again, its thermofin thickness is at the 100-1000 micron, and reflector thickness is the 50-200 micron.
SiO of the present invention
2Freeze-drying glue thermal-insulating external-wall coating, raw material is cheap, and technology is simple.Gained compound heat-insulation exterior coating is through compound alternative traditional thermal insulating coating in thermofin and tamper, inexpensive and effect of heat insulation with excellence.Coating of the present invention is used for appearances such as buildings, automobile, train storage tank, and the sunshine specular reflectance included is reached more than 80%, and heat-insulating efficiency reaches 15 ~ 20 ℃.
Description of drawings
Fig. 1 is a compound heat-insulation exterior coating coating structure synoptic diagram of the present invention;
Fig. 2 is the reflectivity curve of reflective heat-insulation paint of the present invention.
Description of reference numerals: 1, tamper; 2, thermofin.
Embodiment
Below in conjunction with embodiment content of the present invention is explained further details.
Embodiment 1
(1) preparation of thermofin: by resin or white cement or lime mortar adding porous material, said porous material is by SiO
2Freeze-drying glue is formed with other porous materials, and stirring makes; Wherein, each amounts of components is following than proportioning by quality
Benzene emulsion: 20
Film coalescence aid: 2
SiO
2Freeze-drying glue: 10
Zeyssatite: 45
Glass microballon: 15
Water: 50
(2) tamper preparation: in container, add film-forming resin emulsion and film coalescence aid, stir; Add entry, SiO
2Freeze-drying glue, TiO
2Nano-powder also adds the infrared external reflection filler, stirs, and promptly obtains the tamper; Wherein, each amounts of components is following than proportioning by quality:
Silicone resin: 20
Film coalescence aid: 0
TiO
2Nano-powder: 25
SiO
2Freeze-drying glue: 20
ZnO nano-powder: 10
Crystal whisker of hexa potassium titanate: 20
Water: 60
(3) apply: be coated with thermofin earlier at building surface, tie; Be coated with the tamper at last again, its thermofin thickness is at 500 microns, and reflector thickness is 50 microns.
Embodiment 2
(1) preparation of thermofin: by resin or white cement or lime mortar adding porous material, said porous material is by SiO
2Freeze-drying glue is formed with other porous materials, and stirring makes; Wherein, each amounts of components is following than proportioning by quality:
White cement: 35
Film coalescence aid: 0
SiO
2Freeze-drying glue: 5
Glass microballon: 25
Sepiolite: 30
Water: 60
(2) tamper preparation: in container, add film-forming resin emulsion and film coalescence aid, stir; Add entry, SiO
2Freeze-drying glue, TiO
2Nano-powder also adds the infrared external reflection filler, stirs, and promptly obtains the tamper; Wherein, each amounts of components is following than proportioning by quality:
Vinyl resin: 30
Film coalescence aid: 3
TiO
2Nano-powder: 10
SiO
2Freeze-drying glue: 10
Al
2O
3Nano-powder: 25
Nano ZnO powder: 10
Crystal whisker of hexa potassium titanate: 10
Water: 65
(3) apply: be coated with thermofin earlier at building surface, tie; Be coated with the tamper at last again, its thermofin thickness is at 1000 microns, and reflector thickness is 100 microns.
Embodiment 3
(1) preparation of thermofin: by resin or white cement or lime mortar adding porous material, said porous material is by SiO
2Freeze-drying glue is formed with other porous materials, and stirring makes; Wherein, each amounts of components is following than proportioning by quality:
Lime mortar: 30
Film coalescence aid: 5
SiO
2Freeze-drying glue: 7
Ceramic fine bead: 15
Sepiolite: 30
Water: 70
(2) tamper preparation: in container, add film-forming resin emulsion and film coalescence aid, stir; Add entry, SiO
2Freeze-drying glue, TiO
2Nano-powder also adds the infrared external reflection filler, stirs, and promptly obtains the tamper; Wherein, each amounts of components is following than proportioning by quality:
F-C resin: 25
Film coalescence aid: 5
TiO
2Nano-powder: 15
SiO
2Freeze-drying glue: 30
Crystal whisker of hexa potassium titanate: 5
Nano-ZnO: 25
Water: 65
(3) apply: be coated with thermofin earlier at building surface, tie; Be coated with the tamper at last again, its thermofin thickness is at 100 microns, and reflector thickness is 200 microns.
Through national building materials inspection center and quality surveillance coating products test house, Guangdong Province according to the standard detection of coating, the SiO of the embodiment of the invention 1,2,3 preparations
2The main performance index of freeze-drying glue compound heat-insulation exterior coating is following:
| Sequence number | Test item | Performance index |
| 1 | State in the container | There is not caking, even |
| 2 | Application property | Scrape, be coated with accessible |
| 3 | Surface drying time (h) | ≤2 |
| 4 | Water tolerance | No abnormal, nothing is bubbled, nothing comes off |
| 5 | Alkali resistance (48h) | No abnormal |
| 6 | Appearance of film | Smooth, color and luster is even |
| 7 | Abrasion resistance (inferior) | ≥300 |
| 8 | Effect of heat insulation | 15-20℃ |
As shown in Figure 2, the SiO of the embodiment of the invention 1 preparation
2Freeze-drying glue compound heat-insulation exterior coating, the high-reflectivity in the 200-2500nm wavelength region reaches more than 90%, and average reflectance reaches 80%.
Claims (9)
1. SiO
2Freeze-drying glue compound heat-insulation exterior coating; Form for two layers by tamper, thermofin, it is characterized in that, said tamper by the film-forming resin emulsion through the crosslinked film forming matter of doing of film coalescence aid; Add entry and the infrared external reflection filler mixes and gets, contain SiO in the said infrared external reflection filler
2Freeze-drying glue; Said thermofin is by resin or white cement or lime mortar adds porous material and water mixes and gets, and contains SiO in the said porous material
2Freeze-drying glue.
2. SiO as claimed in claim 1
2Freeze-drying glue compound heat-insulation exterior coating, it is characterized in that said film-forming resin be meant to visible light and near infrared light absorb low, as not contain heat absorptivity C-O-C, CO ,-resin of OH group.
3. SiO as claimed in claim 2
2Freeze-drying glue compound heat-insulation exterior coating is characterized in that said film-forming resin is selected from silicone resin, vinyl resin, F-C resin, benzene emulsion, pure-acrylic emulsion.
4. SiO as claimed in claim 1
2Freeze-drying glue compound heat-insulation exterior coating, it is characterized in that: said porous material contains the composition that is selected from zeyssatite, glass microballon, ceramic fine bead, sepiolite in addition; Said infrared external reflection filler contains in addition and is selected from ZnO, Al
2O
3, the crystal whisker of hexa potassium titanate nano-powder composition.
5. SiO
2The preparation method of freeze-drying glue compound heat-insulation exterior coating is characterized in that may further comprise the steps:
(1) preparation in tamper: in container, add film-forming resin emulsion and film coalescence aid, stir; Add entry, SiO
2Freeze-drying glue, TiO
2Nano-powder also adds the infrared external reflection filler, stirs, and promptly obtains the tamper; Wherein, each amounts of components is following than proportioning by quality:
Film-forming resin: 20-30
Film coalescence aid: 0-5
TiO
2Nano-powder: 10-25
SiO
2Freeze-drying glue: 10-30
Infrared external reflection filler: 15-45
Water: 60-70
(2) preparation of thermofin: by resin or white cement or lime mortar adding porous material, said porous material is by SiO
2Freeze-drying glue is formed with other porous materials, and stirring makes; Wherein, each amounts of components is following than proportioning by quality:
Resin or white cement or lime mortar: 20-35
Film coalescence aid: 0-5
SiO
2Freeze-drying glue: 5-10
Other porous materials 45-60
Water: 50-70
3) apply: be coated with thermofin earlier at building surface, tie; Be coated with the tamper at last again, its thermofin thickness is at the 100-1000 micron, and reflector thickness is the 50-200 micron.
6. SiO as claimed in claim 1
2Freeze-drying glue compound heat-insulation exterior coating, it is characterized in that said film-forming resin be meant to visible light and near infrared light absorb low, as not contain heat absorptivity C-O-C, CO ,-resin of OH group.
7. SiO as claimed in claim 5
2Freeze-drying glue compound heat-insulation exterior coating is characterized in that said film-forming resin is selected from silicone resin, vinyl resin, F-C resin, benzene emulsion, pure-acrylic emulsion.
8. SiO as claimed in claim 5
2The preparation method of freeze-drying glue compound heat-insulation exterior coating is characterized in that: said infrared external reflection filler contains in addition and is selected from ZnO, Al
2O
3, the crystal whisker of hexa potassium titanate nano-powder composition.
9. SiO as claimed in claim 5
2The preparation method of freeze-drying glue compound heat-insulation exterior coating is characterized in that: said other porous materials are selected from zeyssatite, glass microballon, ceramic fine bead, sepiolite.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193393.3A CN102702822B (en) | 2012-06-12 | 2012-06-12 | SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193393.3A CN102702822B (en) | 2012-06-12 | 2012-06-12 | SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102702822A true CN102702822A (en) | 2012-10-03 |
| CN102702822B CN102702822B (en) | 2015-03-18 |
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|---|---|---|---|
| CN201210193393.3A Expired - Fee Related CN102702822B (en) | 2012-06-12 | 2012-06-12 | SiO2 freeze-drying glue composite thermal insulation exterior wall coating and preparation method thereof |
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Cited By (4)
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| CN104497651A (en) * | 2014-12-24 | 2015-04-08 | 中国科学院广州能源研究所 | Freeze-dried glue transparent coating for protection of brick/stone historical relics and preparation method thereof |
| CN106892626A (en) * | 2017-04-20 | 2017-06-27 | 荣延洲 | A kind of thermal insulation coatings of utilization hollow glass micropearl and preparation method thereof |
| CN110256897A (en) * | 2019-07-19 | 2019-09-20 | 广州歌林尔新材料有限公司 | A kind of inorganic ink, photovoltaic back glass and preparation method thereof |
| CN114369384A (en) * | 2021-12-21 | 2022-04-19 | 石家庄日加精细矿物制品有限公司 | High-reflection texture coating and preparation method thereof |
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| CN114369384A (en) * | 2021-12-21 | 2022-04-19 | 石家庄日加精细矿物制品有限公司 | High-reflection texture coating and preparation method thereof |
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| CN102702822B (en) | 2015-03-18 |
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Inventor after: Miao Lei Inventor after: Xu Gang Inventor after: Su Lifen Inventor after: Chen Lihua Inventor after: Zhou Jianhua Inventor before: Xu Gang Inventor before: Su Lifen Inventor before: Chen Lihua Inventor before: Zhang Xiaoting |
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