Phase-change energy-storage thermal-insulation slurry, stone-like paint, and preparation method, application and construction method of stone-like paint

Abstract

The invention provides a phase-change energy-storage heat-preservation and heat-insulation stone-like paint as well as a preparation method, application and a construction method thereof, and belongs to the field of building materials. The nano aluminum oxide, the nano silicon-based oxide, the nano yttrium oxide, the glass microsphere reflection and radiation material and the stearic acid phase change energy storage material are added into the stone-like paint, so that the hemispherical emissivity, the medium-brightness sunlight reflectance, the near-infrared light reflectance and the phase change energy storage function of the stone-like paint are enhanced. The result of the embodiment shows that the hemisphere emissivity of the stone-like paint is larger than or equal to 85%, the medium-brightness sunlight reflectance is larger than or equal to 65%, the near-infrared light reflectance is larger than or equal to 70%, the temperature difference between the inner side surface and the outer side surface of an outer wall in summer is small, heat transferred from the surface of an outer wall coating to the indoor space is reduced, and therefore the indoor cooling comfort degree in summer is improved; in winter, the temperatures of the inner and outer side surfaces of the outer wall are basically equal, heat transferred from the indoor to the outdoor is reduced, and the indoor warm comfort in winter is improved.

Description

Technical Field

[0001] The present invention relates to the field of construction, and in particular to a phase-change energy storage thermal insulation slurry, stone-like paint, and a preparation method, application, and construction method thereof. Background Art

[0002] In my country's hot summer and cold winter areas, the summer temperature is high for about six months, and in hot summer and cold winter areas, the summer temperature is high for about three months. The national standard GB50176-2016 "Code for Thermal Design of Civil Buildings" stipulates that exterior wall insulation design must be carried out.

[0003] In the prior art, reflective thermal insulation paint is usually sprayed on the wall of a building to achieve the purpose of thermal insulation of the exterior wall. Reflective thermal insulation imitation stone paint is one of the above-mentioned reflective thermal insulation paints. However, the hemispherical emissivity, medium-brightness sunlight reflectance and near-infrared light reflectance of the existing imitation stone paint are all low, and it does not have a phase change energy storage function. Summary of the Invention

[0004] The purpose of the present invention is to provide a phase change energy storage thermal insulation slurry, imitation stone paint and its preparation method, application and construction method. The imitation stone paint of the present invention has high hemispherical emissivity, medium brightness sunlight reflectance and near infrared light reflectance, and has phase change energy storage function.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0006] The present invention provides a phase-change energy storage thermal insulation slurry, which comprises the following components in parts by mass:

[0007] 200-500 parts of first water; 5-25 parts of dispersant; 2-10 parts of wetting agent; 1-10 parts of first bactericidal preservative; 2-10 parts of first defoaming agent; 2-10 parts of first film-forming agent; 1-5 parts of first neutralizing agent; 50-150 parts of first stearic acid; 25-150 parts of nano-alumina; 25-150 parts of nano-silicon-based oxide; 10-50 parts of nano-yttrium oxide; 10-100 parts of glass microspheres; 200-500 parts of elastic emulsion; 1-5 parts of first thickener;

[0008] The solid content of the elastic emulsion is 45-70%.

[0009] Preferably, the elastic emulsion comprises 2488 pure acrylic elastic emulsion.

[0010] The present invention also provides a stone-like paint, comprising a phase-change energy storage thermal insulation slurry and a stone-like paint slurry;

[0011] The imitation stone paint slurry comprises the following components in parts by mass:

[0012] 100-300 parts of second water; 2-5 parts of cellulose; 2-10 parts of second bactericidal preservative; 2-10 parts of second defoaming agent; 5-15 parts of second film-forming agent; 5-20 parts of antifreeze agent; 2-10 parts of second neutralizer; 75-200 parts of imitation stone paint emulsion; 500-900 parts of dyed aluminum silicate colored sand; 2-10 parts of second thickener;

[0013] The phase change energy storage thermal insulation slurry is the phase change energy storage thermal insulation slurry described in the above technical solution.

[0014] Preferably, the mass ratio of the phase change energy storage thermal insulation slurry to the imitation stone paint slurry is 2:3.

[0015] Preferably, the stone-like paint further comprises a third thickener.

[0016] Preferably, the consistency of the imitation stone paint is 85-95KU.

[0017] Preferably, the imitation stone paint emulsion includes 218 silicone acrylic imitation stone paint emulsion.

[0018] Preferably, the antifreeze agent comprises ethylene glycol.

[0019] The present invention also provides application of the stone-like paint described in the above technical solution in the field of architecture.

[0020] The present invention also provides a construction method of imitation stone paint, which is characterized by comprising the following steps:

[0021] Apply alkali-resistant sealing primer by rolling, scraping putty, spraying imitation stone paint and rolling topcoat on the building surface in sequence;

[0022] The imitation stone paint is the imitation stone paint described in the above technical solution.

[0023] The phase-change energy storage thermal insulation slurry of the present invention incorporates high-radiation materials nano-alumina and nano-yttrium oxide, and highly reflective materials nano-silicon-based oxide and glass microspheres, synergistically enhancing the spherical emissivity, mid-light solar reflectance, near-infrared reflectance, and phase-change energy storage function of the stone-like paint made with them. The results of the examples show that the hemispherical emissivity of the stone-like paint of the present invention is ≥85%, the mid-light solar reflectance is ≥65%, and the near-infrared reflectance is ≥70%. In summer, when the outdoor air temperature is ≥35°C, the surface temperature of the wall coating directly exposed to sunlight is ≤40°C, and the temperature difference between the inner and outer surfaces of the exterior wall is small, reducing the heat transfer from the exterior wall coating surface to the interior, thereby improving the indoor coolness and comfort in summer. In winter, when the outdoor air temperature is ≤15°C, the surface temperature of the exterior wall coating is ≥15°C, and the temperatures of the inner and outer surfaces of the exterior wall are basically the same, reducing the heat transfer from the indoor to the outdoor, thereby improving the warmth and comfort in winter. DETAILED DESCRIPTION

[0024] The present invention provides a phase-change energy storage thermal insulation slurry, which comprises the following components in parts by mass:

[0025] 200-500 parts of first water; 5-25 parts of dispersant; 2-10 parts of wetting agent; 1-10 parts of first bactericidal preservative; 2-10 parts of first defoaming agent; 2-10 parts of first film-forming agent; 1-5 parts of first neutralizing agent; 50-150 parts of first stearic acid; 25-150 parts of nano-alumina; 25-150 parts of nano-silicon-based oxide; 10-50 parts of nano-yttrium oxide; 10-100 parts of glass microspheres; 200-500 parts of elastic emulsion; 1-5 parts of first thickener;

[0026] The solid content of the elastic emulsion is 45-70%.

[0027] In parts by mass, the phase change energy storage thermal insulation slurry includes 200 to 500 parts of first water, preferably 250 parts, 300 parts, 350 parts or 450 parts;

[0028] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 5 to 25 parts of dispersant, preferably 10 parts, 12 parts, 15 parts, 16 parts or 20 parts; the dispersant preferably includes 731A dispersant.

[0029] The present invention has no special limitation on the preparation method of the phase-change energy storage thermal insulation slurry, and it can be mixed evenly using a method well known to those skilled in the art.

[0030] The following is an introduction to phase change energy storage thermal insulation slurry:

[0031] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 2 to 10 parts of a wetting agent, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the wetting agent preferably includes PE100.

[0032] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 1 to 10 parts of the first bactericidal preservative, preferably 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the first bactericidal preservative preferably includes a polyhexamethylene guanidine bactericidal preservative.

[0033] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 2 to 10 parts of the first defoaming agent, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the first defoaming agent preferably includes 309 mineral oil defoaming agent.

[0034] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 2 to 10 parts of the first film-forming agent, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the first film-forming agent preferably includes dodecyl alcohol.

[0035] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 1 to 5 parts of a first neutralizer, preferably 2 parts, 3 parts or 4 parts; the first neutralizer preferably includes AMP-95 methyl propanol pH regulator.

[0036] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 50 to 150 parts of the first stearic acid, preferably 50 parts, 75 parts, 100 parts, 120 parts or 150 parts;

[0037] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 25 to 150 parts of nano-alumina, preferably 50 parts, 75 parts, 100 parts, 120 parts or 150 parts;

[0038] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 25 to 150 parts of nano silicon-based oxide, preferably 50 parts, 75 parts, 100 parts, 120 parts or 150 parts;

[0039] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 10 to 50 parts of nano yttrium oxide, preferably 20 parts, 25 parts, 30 parts, 40 parts or 45 parts;

[0040] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 10 to 100 parts of glass microspheres, preferably 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, 80 parts or 90 parts;

[0041] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 200 to 500 parts of elastic emulsion, preferably 220 parts, 250 parts, 280 parts, 300 parts, 350 parts, 380 parts, 400 parts, 420 parts, 450 parts, and 480 parts; the solid content of the elastic emulsion is preferably 50%, and the elastic emulsion preferably includes 2488 elastic emulsion.

[0042] Based on the mass fraction of the first water, the phase change energy storage thermal insulation slurry includes 1 to 5 parts of the first thickener, preferably 2 parts, 3 parts or 4 parts; the first thickener preferably includes 2020 thickener.

[0043] The present invention also provides a stone-like paint, comprising a phase-change energy storage thermal insulation slurry and a stone-like paint slurry;

[0044] The stone-like paint slurry comprises the following components in parts by mass:

[0045] 100-300 parts of second water; 2-5 parts of cellulose; 2-10 parts of second bactericidal preservative; 2-10 parts of second defoaming agent; 5-15 parts of second film-forming agent; 5-20 parts of antifreeze agent; 2-10 parts of second neutralizer; 75-200 parts of imitation stone paint emulsion; 500-900 parts of aluminum silicate; 2-10 parts of second thickener.

[0046] In the present invention, the consistency of the imitation stone paint is preferably 85-95KU; the imitation stone paint includes phase change energy storage thermal insulation slurry and imitation stone paint slurry, and the mass ratio of the phase change energy storage thermal insulation slurry and the imitation stone paint slurry is preferably 2:3; the imitation stone paint preferably includes a third thickener; the third thickener preferably includes a 2020 thickener. The present invention has no special limitation on the amount of the third thickener, as long as the consistency is achieved.

[0047] In the present invention, the imitation stone paint slurry includes 100 to 300 parts of the second water, preferably 120 parts, 125 parts, 150 parts, 180 parts, 200 parts, 220 parts, 250 parts or 280 parts by mass;

[0048] Based on the mass fraction of the second water, the imitation stone paint slurry includes 2 to 5 parts of cellulose, preferably 3 or 4 parts;

[0049] Based on the mass fraction of the second water, the imitation stone paint slurry includes 2 to 10 parts of the second bactericidal preservative, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the second bactericidal preservative preferably includes S201 bactericidal preservative.

[0050] Based on the mass fraction of the second water, the imitation stone paint slurry includes 2 to 10 parts of the second defoamer, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the second defoamer preferably includes 309 defoamer.

[0051] Based on the mass fraction of the second water, the imitation stone paint slurry includes 5 to 15 parts of the second film-forming agent, preferably 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts or 14 parts; the second film-forming agent preferably includes dodecyl alcohol.

[0052] Based on the mass fraction of the second water, the imitation stone paint slurry includes 5 to 20 parts of antifreeze, preferably 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts or 19 parts; the antifreeze preferably includes ethylene glycol.

[0053] Based on the mass fraction of the second water, the imitation stone paint slurry includes 2 to 10 parts of the second neutralizer, preferably 2.5 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the second neutralizer preferably includes 95 neutralizer.

[0054] Based on the mass fraction of the second water, the imitation stone paint slurry includes 75 to 200 parts of imitation stone paint emulsion, preferably 75 parts, 100 parts, 120 parts, 150 parts, 180 parts or 200 parts; the solid content of the imitation stone paint emulsion is 45%, and the imitation stone paint emulsion preferably includes 218 imitation stone paint emulsion.

[0055] Based on the mass fraction of the second water, the imitation stone paint slurry includes 500 to 900 parts of dyed aluminum silicate colored sand, preferably 600 parts, 650 parts, 700 parts, 750 parts, 800 parts or 850 parts, and the particle size of the aluminum silicate is preferably 80 mesh.

[0056] Based on the mass fraction of the second water, the imitation stone paint slurry includes 2 to 10 parts of the second thickener, preferably 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts or 9 parts; the second thickener preferably includes 2020 thickener.

[0057] The preparation method of the imitation stone paint slurry in the present invention preferably comprises the following steps:

[0058] The water is mixed with the cellulose and then mixed with the remaining raw materials.

[0059] The present invention has no special limitation on the preparation method of the stone-like paint, and a method well known to those skilled in the art can be used to mix the paint uniformly.

[0060] The present invention also provides application of the stone-like paint described in the above solution in the field of construction.

[0061] The present invention also provides a construction method of imitation stone paint, comprising the following steps:

[0062] Apply alkali-resistant sealing primer, scrape putty, spray stone-like paint and roll topcoat on the building surface in sequence;

[0063] The imitation stone paint is the imitation stone paint described in the above scheme.

[0064] In the present invention, the amount of the alkali-resistant sealing primer is preferably 0.15 to 0.25 kg / m 2 The amount of putty is preferably 3 to 5 kg / m 2 The dosage of spraying imitation stone paint is preferably 1-3 kg / m 2 The amount of roller coating topcoat is preferably 0.15 to 0.25 kg / m 2 .

[0065] The following is a detailed description of the stone-like paint provided by the present invention and its preparation method, application and construction method in conjunction with the embodiments, but they should not be understood as limiting the scope of protection of the present invention.

[0066] The preparation method of the phase change energy storage thermal insulation slurry in Examples 1 to 3 is:

[0067] Measure and add the above phase change energy storage thermal insulation slurry materials into the slurry mixer in sequence, stirring at high speed while adding. After all are added, stir for another 10 minutes to ensure that they are fully mixed and there are no lumps.

[0068] The preparation method of imitation stone paint slurry is:

[0069] Use a high-speed disperser to evenly disperse the water and cellulose material, then pour them into the imitation stone paint mixer tank, and then add the remaining materials of the above imitation stone paint slurry into the imitation stone paint mixer tank in sequence, stirring evenly while adding.

[0070] The preparation method of imitation stone paint is:

[0071] According to the ratio of 40 parts of phase change energy storage thermal insulation slurry and 60 parts of imitation stone paint slurry, add phase change energy storage thermal insulation slurry and imitation stone paint slurry into the imitation stone paint mixer tank and mix evenly. Add 2020 thickener appropriately to achieve the consistency KU value requirement of 90.

[0072] Example 1

[0073] The components of phase change energy storage thermal insulation slurry are:

[0074] 400 parts of water, 15 parts of 731A dispersant, 5 parts of PE100 wetting agent, 4 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 5 parts of lauryl alcohol film-forming agent, 2 parts of neutralizer AMP-95 methyl propanol pH regulator, 150 parts of stearic acid, 25 parts of nano alumina, 100 parts of nano silicon-based oxide, 25 parts of nano yttrium oxide, 50 parts of glass microspheres, 400 parts of 2488 elastic emulsion, 2 parts of 2020 thickener.

[0075] Formula of imitation stone paint slurry:

[0076] 150 parts of water, 4 parts of 250 cellulose, 5 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 8 parts of lauryl alcohol film-forming agent, 15 parts of ethylene glycol antifreeze, 2.5 parts of neutralizer AMP-95 methyl propanol pH regulator, 150 parts of 218 imitation stone paint emulsion, 700 parts of 80 mesh dyed aluminum silicate colored sand, and 5 parts of 2020 thickener.

[0077] Example 2

[0078] The components of phase change energy storage thermal insulation slurry are:

[0079] 400 parts of water, 15 parts of 731A dispersant, 5 parts of PE100 wetting agent, 4 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 5 parts of lauryl alcohol film-forming agent, 2 parts of neutralizer AMP-95 methyl propanol pH regulator, 110 parts of stearic acid, 50 parts of nano alumina, 75 parts of nano silicon-based oxide, 50 parts of nano yttrium oxide, 25 parts of glass microspheres, 400 parts of 2488 elastic emulsion, 2 parts of 2020 thickener.

[0080] Formula of imitation stone paint slurry:

[0081] 200 parts of water, 4 parts of 250 cellulose, 5 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 8 parts of lauryl alcohol film-forming agent, 15 parts of ethylene glycol antifreeze, 2.5 parts of 95 neutralizer, 150 parts of 218 imitation stone paint emulsion, 650 parts of 80 mesh dyed aluminum silicate colored sand, and 6 parts of 2020 thickener.

[0082] Example 3

[0083] The components of phase change energy storage thermal insulation slurry are:

[0084] 400 parts of water, 15 parts of 731A dispersant, 5 parts of PE100 wetting agent, 4 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 5 parts of lauryl alcohol film-forming agent, 2 parts of neutralizer AMP-95 methyl propanol pH regulator, 135 parts of stearic acid, 35 parts of nano alumina, 90 parts of nano silicon-based oxide, 50 parts of nano yttrium oxide, 25 parts of glass microspheres, 400 parts of 2488 elastic emulsion, 2 parts of 2020 thickener.

[0085] Formula of imitation stone paint slurry:

[0086] 100 parts of water, 4 parts of 250 cellulose, 5 parts of S201 bactericidal preservative, 5 parts of 309 defoaming agent, 8 parts of lauryl alcohol film-forming agent, 15 parts of ethylene glycol antifreeze, 2.5 parts of neutralizer AMP-95 methyl propanol pH regulator, 150 parts of 218 imitation stone paint emulsion, 750 parts of 80 mesh dyed aluminum silicate colored sand, and 3 parts of 2020 thickener.

[0087] The surface temperature of the phase-change energy storage thermal insulation imitation stone paint prepared according to the above preparation method is: ≤40°C in summer and ≥10°C in winter. The hemispherical emissivity of the phase-change energy storage thermal insulation imitation stone paints of Examples 1 to 3 is 80%, 85%, and 90%, respectively; the mid-brightness sunlight reflectance is 60%, 65%, and 70%, respectively; and the near-infrared light reflectance is 70%, 75%, and 80%, respectively.

[0088] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A phase change energy storage thermal insulation slurry, characterized in that: Calculated by mass, it includes the following components: 200-500 parts of first water; 5-25 parts of dispersant; 2-10 parts of wetting agent; 1-10 parts of first bactericidal preservative; 2-10 parts of first defoaming agent; 2-10 parts of first film-forming agent; 1-5 parts of first neutralizing agent; 50-150 parts of first stearic acid; 25-150 parts of nano-alumina; 25-150 parts of nano-silicon-based oxide; 10-50 parts of nano-yttrium oxide; 10-100 parts of glass microspheres; 200-500 parts of elastic emulsion; 1-5 parts of first thickener; The solid content of the elastic emulsion is 45-70%.

2. The phase change energy storage thermal insulation slurry according to claim 1, characterized in that: The elastic emulsion includes 2488 pure acrylic elastic emulsion.

3. A stone-like paint, characterized in that: Including phase change energy storage thermal insulation slurry and imitation stone paint slurry; The stone-like paint slurry comprises the following components in parts by mass: 100-300 parts of second water; 2-5 parts of cellulose; 2-10 parts of second bactericidal preservative; 2-10 parts of second defoaming agent; 5-15 parts of second film-forming agent; 5-20 parts of antifreeze agent; 2-10 parts of second neutralizer; 75-200 parts of imitation stone paint emulsion; 500-900 parts of dyed aluminum silicate colored sand; 2-10 parts of second thickener; The phase change energy storage thermal insulation slurry is the phase change energy storage thermal insulation slurry according to claim 1 or 2.

4. The imitation stone paint according to claim 3, characterized in that The mass ratio of the phase change energy storage thermal insulation slurry to the imitation stone paint slurry is 2:

3.

5. The imitation stone paint according to claim 3, characterized in that The stone-like paint further comprises a third thickener.

6. The imitation stone paint according to claim 3 or 4, characterized in that The consistency of the imitation stone paint is 85-95KU.

7. The stone-like paint according to claim 3, characterized in that: The imitation stone paint emulsion includes 218 silicone acrylic imitation stone paint emulsion.

8. The stone-like paint according to claim 3, characterized in that: The antifreeze agent includes ethylene glycol.

9. Use of the stone-like paint according to any one of claims 3 to 8 in the field of architecture.

10. A construction method of imitation stone paint, characterized in that: The following steps are involved: Apply alkali-resistant sealing primer by rolling, scraping putty, spraying imitation stone paint and rolling topcoat on the building surface in sequence; The imitation stone paint is the imitation stone paint according to any one of claims 3 to 8.