CN107540284B - preparation and application of constant-temperature polymer phase change machine spraying mortar - Google Patents
preparation and application of constant-temperature polymer phase change machine spraying mortar Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides preparation and application of constant-temperature polymer phase change machine spraying mortar, and the specific preparation method comprises the following steps: taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powders, pre-sintering, ball-milling, cold-press molding, cold isostatic pressing, sintering, polishing and obtaining the lead-free antiferroelectric energy storage ceramic; immersing attapulgite in liquid paraffin, filtering after adsorption, adding lead-free antiferroelectric energy storage ceramic, coating a sealing layer on the surface for curing, and modifying by an emulsified polymer colloidal material to obtain a polymer modified phase-change material; and finally, uniformly mixing the construction waste, the fly ash, the tailings, the gypsum, the polymer modified phase change material and the cement to form dry powder, adding water and polypropylene short fibers, and uniformly mixing to obtain the constant-temperature polymer phase change machine spraying mortar. The constant-temperature polymer phase change machine spraying mortar prepared by the invention has certain energy storage effect on temperature and electricity, has good mechanical strength, convenient use and strong controllability, and is mainly used for saving energy on walls and roofs.
Description
Technical Field
The invention belongs to the technical field of phase change building materials, and particularly relates to preparation and application of constant-temperature polymer phase change machine spraying mortar.
Background
With the continuous improvement of the living standard of human beings, the energy consumption of buildings is rapidly increased, and energy-saving buildings become an important link of the strategy of energy safety and sustainable development. The phase change material is also called as a phase change energy storage material, the physical property of the material can change along with the change of the external temperature, the function of latent heat is provided, the energy is scientifically stored and utilized by utilizing the substance phase change latent heat, the phase change material is applied to the building material, the mismatching of energy conversion and supply and demand on time, space, strength and places can be solved and relieved, the energy is conveniently and efficiently utilized, the energy is saved, the emission is reduced, and the method has the advantages of simple temperature control system device, convenience in maintenance and management, high cost performance and the like, and is an ideal building energy saving method.
The phase change energy storage composite material for the building and the preparation method thereof are disclosed in Chinese patent CN 1303181C, the phase change energy storage composite material for the building comprises dispersed porous material aggregates and organic phase change materials, paraffin or butyl stearate organic phase change materials are stored in and expanded clay, expanded shale, expanded perlite or expanded fly ash porous material aggregates, then the phase change energy storage aggregates are prepared by sealing polymer cement or polymer emulsion, and then the phase change energy storage aggregates are prepared with cement, water and chemical additives to form the phase change energy storage concrete material. The phase change energy storage aggregate prepared by the method is low in cost, the phase change energy storage material is sealed by the compact material, the durability of the phase change material is improved, and the pollution of the phase change material to the building environment is reduced. The composite material is composed of cement, common aggregate, composite phase-change energy-storage aggregate, a stabilizer, a pore-forming agent and water, wherein the composite phase-change energy-storage aggregate is composed of alkane, fatty acid, alcohol or ester phase-change material and expanded graphite, is soaked in the pore-forming agent and is only saturated, and then is mixed with cement slurry and the common aggregate to form the phase-change energy-storage aggregate cement-based composite material. The prior art shows that the phase change material has many applications in building materials, but how to improve the durability and temperature resistance of the phase change material while reducing the cost of the phase change material.
disclosure of Invention
The invention provides preparation and application of constant-temperature polymer phase change machine spraying mortar, which is characterized in that attapulgite adsorbing liquid paraffin is mixed with lead-free antiferroelectric energy storage ceramic, a sealing layer is coated on the surface of the attapulgite, a styrene-acrylic polymer is modified to form a polymer modified phase change material, and the polymer modified phase change material is mixed with construction waste, fly ash, tailings, gypsum, cement, polypropylene short fibers and water to form the constant-temperature polymer phase change machine spraying mortar. The constant-temperature polymer phase change machine spraying mortar prepared by the invention has certain energy storage effect on temperature and electricity, has good mechanical strength, convenient use and strong controllability, and is mainly used for saving energy on walls and roofs.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a preparation method of constant temperature polymer phase change machine spraying mortar is characterized by comprising the following steps: the method comprises the following steps:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering for 2-3h at the temperature of 900-1000 ℃, performing dispersion ball milling treatment by absolute ethyl alcohol, performing cold press molding and cold isostatic pressing treatment, sintering for 5-6h at the temperature of 1200-1300 ℃, and polishing to obtain the lead-free antiferroelectric energy storage ceramic;
(2) Immersing attapulgite in liquid paraffin, fully adsorbing, filtering to obtain the attapulgite adsorbing paraffin, adding the lead-free antiferroelectric energy storage ceramic prepared in the step (1), coating a sealing layer on the surface, and curing to obtain a phase-change material;
(3) Putting the phase-change material prepared in the step (2) into a rotary drum to rotate, simultaneously atomizing the diluted emulsified polymer colloid material by using an atomizer, conveying the atomized emulsified polymer colloid material into the rotary drum along with hot air, and discharging after treatment to obtain a polymer modified phase-change material;
(4) And (3) uniformly mixing the construction waste, the fly ash, the tailings, the gypsum, the polymer modified phase-change material prepared in the step (3) and the cement to form dry powder, adding water and polypropylene short fibers, and uniformly mixing to obtain the constant-temperature polymer phase-change machine spraying mortar.
preferably, in the step (1), the mass ratio of the silver, the copper, the iron and the manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0-0.1: 0. -0.1: 0-0.1.
Preferably, in the step (2), the mass ratio of the liquid paraffin, the attapulgite and the lead-free antiferroelectric energy storage ceramic in the phase change material is 20-40:30-50: 5-10.
Preferably, in the step (2), the sealing layer is made of rubber resin.
Preferably, in the step (3), a styrene-acrylic emulsion or a polypropylene emulsion, which is a polymer colloid material, is emulsified.
Preferably, in the step (3), the ratio of the emulsified polymer colloid material to water is 1: 1.
Preferably, in the step (3), the mass fraction of the polymer in the polymer-modified phase change material is 10-15%.
preferably, in the step (4), the length of the polypropylene short fiber is 5-10cm, the tensile strength is greater than 276MPa, and the elastic modulus is not lower than 3500 MPa.
Preferably, in the step (4), the components in the constant temperature polymer phase change machine spraying mortar comprise, by weight, 15-20% of construction waste, 2-4% of fly ash, 3-5% of tailings, 1-2% of gypsum, 5-10% of polymer modified phase change material, 50-55% of cement, 0.5-2% of polypropylene short fiber, and the balance water.
The invention also provides application of the constant temperature polymer phase change machine sand blasting slurry, which is characterized in that the constant temperature polymer phase change machine sand blasting slurry is mainly used for energy conservation of wall surfaces and roofs.
Compared with the prior art, the invention has the following beneficial effects:
(1) The constant temperature polymer phase change machine sand blasting slurry prepared by the invention comprises the lead-free antiferroelectric energy storage ceramic, the lead-free antiferroelectric energy storage ceramic is small in size, light in weight and excellent in electricity storage performance, the lead-free antiferroelectric energy storage ceramic is added into the mortar, the antistatic performance of the mortar can be improved, the mortar also contains liquid paraffin, and the liquid paraffin can store heat.
(2) the constant-temperature polymer phase change machine sand blasting slurry prepared by the invention has high energy storage density, good storage capacity for electricity and heat, good durability and good dispersibility, and can obviously improve the constant-temperature antistatic property of the mortar.
(3) the preparation method is simple, the electricity storage material and the heat storage material are combined and applied to the mortar, the mortar is endowed with a constant-temperature antistatic effect, the dispersibility in the mortar is good, the prepared mortar is stable and uniform in performance, and the mortar also has the characteristics of low cost, excellent mechanical property and good durability, can be used for saving energy on wall surfaces and roofs, and is wide in application field.
Detailed Description
The present invention will be described in detail with reference to specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
Example 1:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering for 2h at 950 ℃, dispersing and ball-milling by absolute ethyl alcohol, cold press molding and cold isostatic pressing, sintering for 5h at 1200 ℃, and grinding and polishing to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.1: 0.1: 0.1.
(2) According to the mass ratio of 20:30:5 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) And (2) putting the phase-change material into a rotary drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, feeding the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotary drum along with hot air, and discharging the atomized styrene-acrylic emulsion or polypropylene emulsion after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 10%.
(4) uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase-change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fiber, and uniformly mixing to obtain constant-temperature polymer phase-change machine spraying mortar, wherein the components in the constant-temperature polymer phase-change machine spraying mortar comprise, by weight, 15% of the construction waste, 2% of the fly ash, 3% of the tailings, 1% of the gypsum, 5% of the polymer modified phase-change material, 50% of the cement, 0.5% of the polypropylene short fiber, and the balance of water.
Example 2:
(1) taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering the powder at 900 ℃ for 3h, carrying out absolute ethyl alcohol dispersion ball milling treatment, carrying out cold press molding and cold isostatic pressing treatment, sintering the powder at 1300 ℃ for 6h, and polishing to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.01: 0.01: 0.01.
(2) according to the mass ratio of 30:40:6 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) And (2) putting the phase-change material into a rotating drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, feeding the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotating drum along with hot air, and discharging the atomized styrene-acrylic emulsion or polypropylene emulsion after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 12%.
(4) Uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fiber, and uniformly mixing to obtain constant temperature polymer phase change machine spraying mortar, wherein the components in the constant temperature polymer phase change machine spraying mortar comprise, by weight, 16% of the construction waste, 3% of the fly ash, 4% of the tailings, 1.5% of the gypsum, 6% of the polymer modified phase change material, 55% of the cement, 2% of the polypropylene short fiber, and the balance of water.
Example 3:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering the powder for 2.5h at 1000 ℃, dispersing and ball-milling the powder by absolute ethyl alcohol, cold press molding the powder, carrying out cold isostatic pressing on the powder, sintering the powder for 5.5h at 1250 ℃, and polishing the powder to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.05: 0.1: 0.02.
(2) According to the mass ratio of 25:45:7 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) And (2) putting the phase-change material into a rotating drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, sending the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotating drum along with hot air, and discharging after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 13%.
(4) uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase-change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fibers, and uniformly mixing to obtain constant-temperature polymer phase-change machine spraying mortar, wherein the components in the constant-temperature polymer phase-change machine spraying mortar comprise, by weight, 20% of the construction waste, 4% of the fly ash, 5% of the tailings, 2% of the gypsum, 10% of the polymer modified phase-change material, 50% of the cement, 0.5% of the polypropylene short fibers, and the balance of water.
Example 4:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering the powder at 920 ℃ for 2.5h, performing absolute ethyl alcohol dispersion ball milling treatment, performing cold press molding and cold isostatic pressing treatment, sintering the powder at 1230 ℃ for 5h, and polishing to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.06: 0.02: 0.07.
(2) according to the mass ratio of 35:45:8 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) and (2) putting the phase-change material into a rotating drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, sending the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotating drum along with hot air, and discharging after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 14%.
(4) Uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase-change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fibers, and uniformly mixing to obtain constant-temperature polymer phase-change machine spraying mortar, wherein the components in the constant-temperature polymer phase-change machine spraying mortar comprise, by weight, 16% of the construction waste, 2% of the fly ash, 4% of the tailings, 1% of the gypsum, 7% of the polymer modified phase-change material, 53% of the cement, 1.5% of the polypropylene short fibers, and the balance of water.
Example 5:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering the powder for 3h at 970 ℃, dispersing and ball-milling the powder by absolute ethyl alcohol, cold press molding the powder, carrying out cold isostatic pressing on the powder, sintering the powder for 5.5h at 1280 ℃, and polishing the powder to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.1: 0.04: 0.05.
(2) According to the mass ratio of 25:30:5 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) And (2) putting the phase-change material into a rotating drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, feeding the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotating drum along with hot air, and discharging the atomized styrene-acrylic emulsion or polypropylene emulsion after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 15%.
(4) Uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase-change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fibers, and uniformly mixing to obtain constant-temperature polymer phase-change machine spraying mortar, wherein the components in the constant-temperature polymer phase-change machine spraying mortar comprise, by weight, 20% of the construction waste, 2% of the fly ash, 3% of the tailings, 2% of the gypsum, 7% of the polymer modified phase-change material, 51% of the cement, 0.5% of the polypropylene short fibers, and the balance of water.
Example 6:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering the powder for 2 hours at 1000 ℃, dispersing and ball-milling the powder by absolute ethyl alcohol, cold-press molding the powder, carrying out cold isostatic pressing on the powder, sintering the powder for 5 hours at 1300 ℃, and polishing the powder to obtain the lead-free antiferroelectric energy storage ceramic, wherein the mass ratio of silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0.1: 0.02: 0.03.
(2) According to the mass ratio of 40:40:10 of liquid paraffin, attapulgite and the lead-free antiferroelectric energy storage ceramic, the attapulgite is soaked in the liquid paraffin, fully adsorbed, filtered to obtain the attapulgite adsorbing paraffin, the lead-free antiferroelectric energy storage ceramic is added, the surface of the attapulgite is coated with a rubber resin sealing layer, and the phase change material is obtained after solidification.
(3) and (2) putting the phase-change material into a rotating drum to rotate, simultaneously atomizing styrene-acrylic emulsion or polypropylene emulsion diluted with water in a ratio of 1:1 by using an atomizer, feeding the atomized styrene-acrylic emulsion or polypropylene emulsion into the rotating drum along with hot air, and discharging the atomized styrene-acrylic emulsion or polypropylene emulsion after treatment to obtain the polymer modified phase-change material, wherein the mass fraction of the polymer in the polymer modified phase-change material is 15%.
(4) uniformly mixing construction waste, fly ash, tailings, gypsum, a polymer modified phase-change material and cement to form dry powder, adding water and 5-10cm long polypropylene short fibers, and uniformly mixing to obtain constant-temperature polymer phase-change machine spraying mortar, wherein the components in the constant-temperature polymer phase-change machine spraying mortar comprise, by weight, 17% of the construction waste, 2% of the fly ash, 3% of the tailings, 2% of the gypsum, 6% of the polymer modified phase-change material, 50% of the cement, 2% of the polypropylene short fibers and the balance of water.
The results of the phase change materials tested in the constant temperature polymer phase change machine mortar prepared in examples 1-6 were as follows:
| Example 1 | Example 2 | example 3 | Example 4 | Example 5 | Example 6 | |
| Bleeding of phase change material | Is very good | Is very good | Is very good | Is very good | Is very good | Is very good |
| Coefficient of thermal conductivity (W/m. K) | 0.18 | 0.16 | 0.17 | 0.16 | 0.18 | 0.16 |
| Coefficient of heat storage (W/m)2·K) | 2.24 | 2.26 | 2.25 | 2.26 | 2.25 | 2.24 |
| Energy density (J/cm) of releasable electricity3) | 2.1 | 2.3 | 2.2 | 2.1 | 2.3 | 2.2 |
| Energy efficiency (%) | 51 | 56 | 55 | 54 | 53 | 54 |
| Stability after 400 cycles | good taste | Good taste | good taste | Good taste | Good taste | Good taste |
| Compressive strength (MPa) | 2.1 | 2.4 | 2.3 | 2.2 | 2.4 | 2.3 |
| Freeze-thaw resistance | Good taste | Good taste | Good taste | Good taste | Good taste | Good taste |
As can be seen from the table, the constant temperature polymer phase change machine sand blasting slurry prepared by the invention has the advantages of good electricity and heat storage performance, excellent mechanical performance, good stability and durability.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The preparation method of the constant-temperature polymer phase change machine spraying mortar is characterized by comprising the following steps of:
(1) Taking manganese oxide, copper oxide, iron oxide and silver nitrate as raw materials, mixing the powder, pre-sintering for 2-3h at the temperature of 900-1000 ℃, performing dispersion ball milling treatment by absolute ethyl alcohol, performing cold press molding and cold isostatic pressing treatment, sintering for 5-6h at the temperature of 1200-1300 ℃, and polishing to obtain the lead-free antiferroelectric energy storage ceramic;
(2) Immersing attapulgite in liquid paraffin, fully adsorbing, filtering to obtain the attapulgite adsorbing paraffin, adding the lead-free antiferroelectric energy storage ceramic prepared in the step (1), coating a sealing layer on the surface, and curing to obtain a phase-change material;
(3) Putting the phase-change material prepared in the step (2) into a rotary drum to rotate, simultaneously atomizing the diluted emulsified polymer colloid material by using an atomizer, conveying the atomized emulsified polymer colloid material into the rotary drum along with hot air, and discharging after treatment to obtain a polymer modified phase-change material;
(4) And (3) uniformly mixing the construction waste, the fly ash, the tailings, the gypsum, the polymer modified phase-change material prepared in the step (3) and the cement to form dry powder, adding water and polypropylene short fibers, and uniformly mixing to obtain the constant-temperature polymer phase-change machine spraying mortar.
2. the preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (1), the mass ratio of the silver, copper, iron and manganese in the lead-free antiferroelectric energy storage ceramic is 1: 0-0.1: 0. -0.1: 0-0.1.
3. The preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (2), the mass ratio of the liquid paraffin, the attapulgite and the lead-free antiferroelectric energy storage ceramic in the phase-change material is 20-40:30-50: 5-10.
4. the preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (2), the sealing layer is made of rubber resin.
5. The preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (3), the emulsified polymer colloid material is styrene-acrylic emulsion or polypropylene emulsion.
6. The preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (3), the dilution ratio is that the ratio of the emulsified polymer colloid material to water is 1: 1.
7. The preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (3), the mass fraction of the polymer in the polymer modified phase-change material is 10-15%.
8. The preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (4), the length of the polypropylene short fiber is 5-10cm, the tensile strength is more than 276MPa, and the elastic modulus is not less than 3500 MPa.
9. the preparation method of the constant temperature polymer phase change machine spraying mortar according to claim 1, characterized by comprising the following steps: in the step (4), the components in the constant-temperature polymer phase change machine spraying mortar comprise, by weight, 15-20% of construction waste, 2-4% of fly ash, 3-5% of tailings, 1-2% of gypsum, 5-10% of polymer modified phase change material, 50-55% of cement, 0.5-2% of polypropylene short fiber and the balance of water.
10. The application of the constant temperature polymer phase change machine sand blasting slurry prepared by the method according to claim 1 is characterized in that the constant temperature polymer phase change machine sand blasting slurry is mainly used for energy conservation of wall surfaces and roofs.
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