A real stone texture paint, a preparation method and use thereof

Abstract

The present application provides a kind of real stone texture paint and its preparation method and purposes, and is prepared from raw materials including base and Yellow River sediment sand, the base includes auxiliary agent and filler, wherein the filler uses construction waste, fly ash and other industrial waste, realizes the recycling of construction waste, fly ash and Yellow River sediment sand.The real stone texture paint provided by the present application meets the performance characteristics of good frost resistance, water resistance ≥97h, and thermal conductivity ≤0.05 (W / (m·k)) by controlling the mass ratio of base and Yellow River sediment sand and the composition of Yellow River sediment sand.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of architectural wall coating, in particular to a real stone texture paint and a preparation method and use thereof. BACKGROUND

[0002] With the progress and development of society, people's requirements for the decoration of building appearance are also getting higher and higher. Natural stone such as white marble, granite, marble and the like has a long history of application in the field of building decoration, and is favored by architects and users due to its natural, simple, elegant and luxurious style, and is widely used in the external decoration of high-end buildings. However, with the large-scale exploitation of natural stone, the high-quality stone resources in nature are facing exhaustion; at the same time, excessive exploitation will also cause environmental problems such as soil erosion, which is not conducive to the protection of the ecological environment; in addition, with the increasing efforts of the country to protect the environment, relevant regulations are constantly improving, making the overall cost of various building stones quite expensive. Therefore, real stone paint, imitation marble paint, imitation brick paint, imitation granite paint and the like, which can meet people's diversified appearance needs, are widely used in schools, hospitals, high-end residential areas and villas and the like. Moreover, as an indoor and outdoor decorative material, real stone paint or texture paint can not only be aesthetically pleasing, beautifying indoor and outdoor walls and increasing artistic arrangement atmosphere, but also can protect buildings and prolong the service life of buildings, which is determined by the characteristics of real stone paint or texture paint.

[0003] In addition, the main filler of traditional real stone texture paint is heavy calcium, kaolin, wollastonite powder and titanium dioxide. For example, CN109456700A discloses a kind of exterior wall high elastic sand surface texture paint and preparation method, the exterior wall high elastic sand surface texture paint includes water, multifunctional additive, bactericide, wetting agent, dispersing agent, defoamer, ethylene glycol, film forming additive, rutile titanium dioxide, elastic emulsion, styrene-acrylic emulsion, matting powder, thickening agent and round sand, the component ratio of the above raw materials is selected as water, multifunctional additive, bactericide, wetting agent, dispersing agent, defoamer, ethylene glycol, film forming additive, rutile titanium dioxide, elastic emulsion, styrene-acrylic emulsion, matting powder, thickening agent and round sand, the exterior wall high elastic sand surface texture paint prepared from the above raw materials has excellent weather resistance, water resistance, anti-whitening performance, high elasticity, high strength and good low-temperature flexibility, can effectively cover the fine cracks of the wall, and can form a sand surface particle concave-convex feeling on the surface of the coating, has the texture decoration effect of real stone paint, and can protect and beautify the wall for a long time. However, the preparation process of traditional real stone texture paint is complex and the cost is high.

[0004] In recent years, due to the acceleration of urbanization and industrialization process, the production of construction waste and fly ash increases sharply, the total amount of solid waste produced in the world is about 17 billion tons per year, of which only construction waste accounts for 92.2%, but most of the construction waste is only treated by landfill, stacking and other simple ways, not only occupies land resources, pollutes the environment, but also may bring serious safety hazards. In addition, fly ash as a common industrial waste, the annual production reaches 600-700 million tons.

[0005] At the same time, with the continuous increase of water demand in the upper reaches of the Yellow River, the cumulative amount of sediment in the Yellow River is also increasing, the annual sediment transport capacity of the whole Yellow River is 2.40*10 8 t, the Yellow River sediment has high weathering degree, low hardness and large accumulation, which cannot be applied to load-bearing field, and causes difficulties in transportation and landfill, resulting in river bed uplift and waste of land resources.

[0006] In summary, it is an urgent problem to seek a true stone texture paint which can solve the shortage of natural sand and stone raw materials, improve the utilization rate of industrial waste and turn waste into treasure, and the true stone texture paint has the effects of strong hiding power and good frost resistance. SUMMARY

[0007] In order to solve the above problems, the present application provides a true stone texture paint, which is prepared from raw materials including a base and Yellow River sediment, the base includes an additive and a filler, wherein the filler uses industrial waste such as construction waste and fly ash, realizing the recycling of construction waste, fly ash and Yellow River sediment. The true stone texture paint provided by the present application meets the performance characteristics of good frost resistance, water resistance ≥97h and thermal conductivity coefficient ≤0.05(W / (m·k)) by controlling the mass ratio of the base and the Yellow River sediment and the composition of the Yellow River sediment.

[0008] The technical scheme of the present application is as follows:

[0009] The present application provides a true stone texture paint, which includes a base and Yellow River sediment with a mass ratio of (5-15):(30-40);

[0010] The base includes an additive and a filler, the additive includes one or more of deionized water, defoaming agent, cellulose and antifreeze agent, multifunctional additive, silicone propylene emulsion, film forming aid, preservative and thickening agent, and the filler includes construction waste and fly ash; the mass ratio of the additive to the filler is (28-38):(0.7-1.3); the particle size of the construction waste and fly ash is ≤74μm, and the particle size of the Yellow River sediment is 0.075-1.7mm.

[0011] Further, the construction waste includes the following components with mass percentage: 50-60% of SiO2, 10-20% of Al2O3, 2-7% of Fe2O3, 2-5% of K2O, 4-8% of CaO.

[0012] Further, the Yellow River sediment sand includes the following components with mass percentage: 60-70% of SiO2, 10-20% of Al2O3, 2-10% of Fe2O3, 3-6% of K2O, 4-8% of CaO.

[0013] Further, the Yellow River sediment sand further includes MgO, and the mass percentage of the MgO is 0.01-3%.

[0014] Further preferably, the mass ratio of the auxiliary agent to the filler is 33:1.

[0015] Further, the total water content of the construction waste and the fly ash is ≤5%.

[0016] Further, in the auxiliary agent, the following components are included with mass parts based on the total mass of the auxiliary agent: 100-150 parts of deionized water, 1-3 parts of cellulose, 1-5 parts of multifunctional auxiliary agent, 120-190 parts of silicone-acrylate emulsion, 4-9 parts of antifreezing agent, 6-11 parts of film-forming auxiliary agent, 0.5-3 parts of defoaming agent, 1-5 parts of preservative, and 0.5-3 parts of thickening agent.

[0017] Further, the cellulose is high-efficiency hydroxyethyl cellulose HE-10K, which is purchased from Qingdao Youxin Chemical Co., Ltd.; the multifunctional auxiliary agent is alcohol amine organic matter AMP-95, which is purchased from Shanghai Jin Yue Chemical Co., Ltd.; the silicone-acrylate emulsion is polymer acrylate emulsion, and the glass transition temperature is 25℃, such as the high-weather-resistance, high-water-resistance, anti-pollution and environment-friendly RS-9966A emulsion produced by Badefu; the antifreezing agent is antifreezing agent propylene glycol, which is purchased from Jinan Ao Xiang Chemical Co., Ltd.; the film-forming auxiliary agent is film-forming auxiliary agent alcohol ester twelve, which is purchased from Runhong Chemical; the defoaming agent is polyether defoaming agent, which is purchased from Guangdong Tianfeng Defoaming Agent Co., Ltd.; the preservative is isothiazolinone preservative, which is purchased from Jinan Hengxian New Material Co., Ltd.; and the thickening agent is hydrophobically modified polyurethane thickening agent, which is purchased from Foshan Dezhong Chemical Technology Co., Ltd.

[0018] Further, the water resistance of the real stone texture paint is ≥97h, and the thermal conductivity coefficient is ≤0.05 (W / (m·k)).

[0019] The application further provides a preparation method of the aforementioned real stone texture paint, which comprises the following steps:

[0020] The construction waste is sorted, dried and crushed, and sieved through a 150-190 mesh standard sieve;

[0021] The fly ash is dried, crushed, and sieved through a 150-190 mesh standard sieve;

[0022] One or more of deionized water, defoaming agent, cellulose, and antifreezing agent, multifunctional additive, silicone-acrylate emulsion, film-forming aid, preservative, thickening agent, construction waste, and fly ash are sequentially mixed to obtain a base material;

[0023] The base material is sealed and left to stand for 8-15 min;

[0024] The base material after standing is added to the Yellow River sediment sand and stirred to obtain a raw color true stone texture paint; and

[0025] The raw color true stone texture paint is tinted to obtain the true stone texture paint.

[0026] Further, the amount of deionized water used in the liquid sealing is 10-20 kg, and the standing time is 10 min.

[0027] Further, in the process of adding the base material to the Yellow River sediment sand and stirring, the stirring is sequentially subjected to low, medium, and low speeds, the low speed is ≤900 r / min, and the medium speed is 900-1200 r / min; the stirring temperature is ≤50℃.

[0028] Further, in the stirring, the speed increasing procedure in the initial low speed stirring is: from static to the first speed by the first speed, and the first speed is maintained at the first speed rate; the first speed is preferably 500-900 r / min, and more preferably 650-750 r / min. The first maintaining time is preferably 10-20 min. The initial low speed stirring of the present application makes the Yellow River sediment sand in the raw color true stone texture paint mixed uniformly with other fillers, preventing the destruction of the structure of the organic components due to the continuous temperature rise during the stirring process. In the initial low speed stage, the stirring temperature is preferably ≤30℃, and more preferably ≤20℃.

[0029] Further, in the stirring, the speed increasing procedure in the medium speed stirring is: from the first speed rate to the second speed by the second speed, and the second speed is maintained at the second speed rate; the second speed is preferably 900-1200 r / min, and more preferably 950-1100 r / min, and the second maintaining time is preferably 10-20 min. The medium speed stirring of the present application makes the fillers uniformly dispersed, increases the charge repulsion of the particle surface, reduces the dielectric concentration, ensures the distance between the particles and the thickness of the double electric layer, and prevents flocculation or even precipitation. In the medium speed stage, the stirring temperature is preferably ≤50℃, and more preferably ≤40℃.

[0030] Further, the deceleration procedure in the last low-speed stage of the stirring is: decreasing from the second speed to a third speed at a third rotating speed, and performing a third holding at the third speed; the third speed is preferably 500-900 r / min, more preferably 650-750 r / min, and the first holding time is preferably 20-30 min. The present application gradually reduces the temperature of the original color stone-like paint through the last low-speed stirring, and facilitates color matching. In the last low-speed stage, the stirring temperature is preferably ≤30℃, more preferably ≤20℃.

[0031] The present application also provides a use of the aforementioned stone-like paint outside a building wall.

[0032] The present application has the following beneficial effects:

[0033] The stone-like paint provided by the present application can improve the hiding power of the stone-like paint by controlling the mass ratio of the base material and the Yellow River sediment sand and the composition of the Yellow River sediment sand, so that the construction slag, fly ash and Yellow River sediment sand can be fully fused under the auxiliary action of other additives. Specifically, the clay particles in the construction slag improve the film-forming property and adhesion of the stone-like paint, and the active ingredients in the fly ash act as a cementing material to fill and solidify, so that the stone-like paint provided by the present application has the characteristics of low pinhole rate and good flatness. The results of the examples show that the stone-like paint provided by the present application has the characteristics of good frost resistance, water resistance ≥97 h and thermal conductivity coefficient ≤0.05 (W / (m·k)). The stone-like paint provided by the present application not only saves the scarce natural sand and stone raw materials, but also improves the utilization rate of industrial solid waste, conforms to the national energy-saving and emission-reducing policy, and has a wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A photo of the stone-like paint provided by the present application.

[0035] Figure 2 A SEM micrograph of fly ash.

[0036] Figure 3 A SEM micrograph of construction slag.

[0037] Figure 4 A preparation flowchart of the stone-like paint provided by the present application.

[0038] Figure 5 A real photo of the stirring tank used in the present application. DETAILED DESCRIPTION

[0039] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it is to be understood that the present application can be carried out in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0040] The present application provides a real stone texture paint, which comprises a base material and Yellow River sediment sand in a mass ratio of (5-15):(30-40).

[0041] The base material comprises additives and fillers, the additives comprise deionized water, defoaming agent and antifreeze agent, multifunctional additive, silicone-acrylate emulsion, film-forming additive, preservative, thickening agent, and the fillers comprise construction waste and fly ash; the mass ratio of the additives to the fillers is (28-38):(0.7-1.3); the particle size of the construction waste and fly ash is ≤74 μm, and the particle size of the Yellow River sediment sand is 0.075-1.7 mm.

[0042] According to a preferred embodiment of the present application, the present application provides a real stone texture paint, which comprises a base material and Yellow River sediment sand in a mass ratio of (5-15):(30-40).

[0043] The base material comprises additives and fillers, the additives comprise one or more of deionized water, defoaming agent, cellulose, and antifreeze agent, multifunctional additive, silicone-acrylate emulsion, film-forming additive, preservative, thickening agent, and the fillers comprise construction waste and fly ash; the mass ratio of the additives to the fillers is (28-38):(0.7-1.3); the particle size of the construction waste and fly ash is ≤74 μm, and the particle size of the Yellow River sediment sand is 0.075-1.7 mm.

[0044] The construction waste comprises the following components in mass percentage: 50-60% of SiO2, 10-20% of Al2O3, 2-7% of Fe2O3, 2-5% of K2O, and 4-8% of CaO.

[0045] The Yellow River sediment sand comprises the following components in mass percentage: 60-70% of SiO2, 10-20% of Al2O3, 2-10% of Fe2O3, 3-6% of K2O, and 4-8% of CaO.

[0046] Further, the Yellow River sediment sand further comprises MgO, and the mass percentage of the MgO is 0.01-3%.

[0047] Further, the total water content of the construction waste and the fly ash is ≤5%, preferably ≤3%. In a specific mode of the present application, the construction waste is derived from building renovation projects, and the fly ash is derived from coal-fired power plants.

[0048] Further, the mass ratio of the base material and the Yellow River sediment sand is preferably (7-13):(32-37).

[0049] Further, in the auxiliary agent, based on the total mass of the auxiliary agent, one or more of the following components are included: deionized water 100-150 parts, cellulose 1-3 parts, multifunctional auxiliary agent 1-5 parts, silicone propylene emulsion 120-190 parts, antifreezing agent 4-9 parts, film-forming auxiliary agent 6-11 parts, defoaming agent 0.5-3 parts, preservative 1-5 parts, thickening agent 0.5-3 parts.

[0050] Further, the Yellow River sediment sand includes 60-70%, preferably 55-65% of SiO2 by mass percentage; the Yellow River sediment sand includes 10-20%, preferably 13-17% of Al2O3 by mass percentage; the Yellow River sediment sand includes 2-8%, preferably 4-6% of Fe2O3 by mass percentage; the Yellow River sediment sand includes 1-5%, preferably 1.8-4.5% of K2O by mass percentage; the Yellow River sediment sand includes 4-9%, preferably 5-8.5% of CaO by mass percentage.

[0051] Further, the particle size distribution of the Yellow River sediment sand is preferably 1.5 mm; the clay content of the Yellow River sediment sand is preferably ≤5%, more preferably ≤3%.

[0052] Further, the water resistance of the true stone texture paint is ≥97 h, and the thermal conductivity coefficient is ≤0.05 (W / (m·k)).

[0053] In the present application, unless otherwise specified, the raw materials used are commercially available products well known to those skilled in the art.

[0054] In traditional true stone texture paint, due to the influence of ethylene glycol forming a continuous hydrophilic network structure, white pigment and filler particles with strong hydrophilicity are easily volatilized to the surface, causing surface whitening. The fly ash provided in the present application is porous and has high activity. After ethylene glycol forms a continuous hydrophilic network structure, the microspherical components in the fly ash further form a hydrophobic film to prevent pigment molecules from escaping. In addition, the fly ash has gel properties, and smaller fly ash particles have good micro-aggregation and miscibility with other components. In a water environment, the fly ash and OH -The reaction produces a hydraulic cementitious material, which improves the durability of the real stone texture paint while adjusting the surface relative humidity of the real stone texture paint. Meanwhile, the active ingredients in the fly ash act as cementitious materials to fill and solidify, thereby reducing the pinhole content of the real stone texture paint, and the real stone texture paint has good frost resistance, water resistance and low thermal conductivity.

[0055] The building slag provided by the present application is of medium plasticity, and has relatively obvious film forming, adhesive, thickening and other properties compared with traditional fillers such as kaolin. The real stone texture paint provided by the present application controls the ratio of each component and the composition of the building slag and fly ash, stimulates the activity of the clay particle in the building slag, and the clay and thixotropic mineral components in the fine particle building slag have strong exchangeability, high viscosity and thickening coefficient, and mainly sodium cations, thereby effectively improving the film forming property and adhesion of the real stone texture paint.

[0056] The preparation raw material of the real stone texture paint provided by the present application includes Yellow River sediment sand, building slag and fly ash, thereby realizing the recycling of waste materials. In the traditional real stone texture paint, the natural sandstone is obtained by crushing and fine grinding, and has a relatively smooth surface and no obvious edges and corners, thereby resulting in a small contact surface area with the base material and poor frost resistance. The preparation raw material of the real stone texture paint provided by the present application is Yellow River sediment sand, and the porosity of the Yellow River sediment sand is higher than that of the natural sand. The apparent density of the Yellow River sediment sand in the dry state is 2630 kg / m 3 , and the apparent density of the Yellow River sediment sand in the saturated surface dry state is 2610 kg / m 3 . The porosity of the Yellow River sediment sand is one of the key factors affecting the frost resistance of the real stone texture paint, and the size of the porosity is negatively correlated with the frost resistance of the real stone texture paint within the required range. The low-temperature gas in the external environment gradually transfers from the surface of the sand particles to the micropores, the ice nuclei generated on the outer wall of the micropores gradually freeze along the pore wall to completely close, the micropores can effectively improve the anti-frost heaving damage capacity under the influence of the ice nucleus expansion characteristics, and further improve the frost resistance of the real stone texture paint.

[0057] The present application also provides a preparation method of the aforementioned real stone texture paint, which comprises the following steps:

[0058] The building slag is sorted, dried and crushed, and sieved through a 150-190 mesh standard sieve;

[0059] The fly ash is dried and crushed, and sieved through a 150-190 mesh standard sieve;

[0060] One or more of the deionized water, defoaming agent, cellulose, anti-freezing agent, multifunctional additive, silicone-acrylic emulsion, film forming additive, preservative and thickening agent, the building slag and the fly ash are sequentially mixed to obtain a base material;

[0061] The base material liquid is sealed and left to stand for 8-15 min;

[0062] The base material after standing is added to the Yellow River sediment sand for stirring to obtain a raw color real stone texture paint;

[0063] The raw color real stone texture paint is color adjusted to obtain the real stone texture paint.

[0064] Further, the application preferably pre-treats the construction waste, and the pre-treatment preferably comprises sequentially taking materials, sorting, drying, grinding and sieving.

[0065] Further, the application preferably pre-treats the construction waste and fly ash, and the pre-treatment preferably comprises sequentially taking materials, drying, grinding and sieving.

[0066] Further, the taking of materials preferably adopts a five-point sampling method.

[0067] Further, the drying preferably comprises sequentially low-temperature drying and high-temperature drying, the temperature of the low-temperature drying is preferably 40-45 DEG C, and the time of the low-temperature drying is preferably 10-14 h; the temperature of the high-temperature drying is preferably 100-110 DEG C, and the time of the high-temperature drying is preferably 10-14 h. The application does not have special requirements for the heating rate from room temperature to the low-temperature drying temperature; the application does not have special requirements for the heating rate from the low-temperature drying temperature to the high-temperature drying temperature; in the specific embodiment of the application, the low-temperature drying and the high-temperature drying are preferably performed in a drying box.

[0068] Further, when the mass of the construction waste or fly ash is preferably 80-100 kg, the grinding time is preferably 5-10 min, and the specific grinding method is preferably dry ball grinding, and the application does not have special requirements for the specific implementation process of the dry ball grinding; in the specific embodiment of the application, the grinding is preferably performed in a ball mill.

[0069] Further, the standard mesh number for sieving is preferably 170 mesh.

[0070] Further, the application preferably pre-treats the Yellow River sediment sand, and the pre-treatment preferably comprises drying, and the application preferably obtains the Yellow River sediment sand with a particle size of 0.075-1.7 mm through drying, in the application, the drying method is preferably sunning, and the application does not have special requirements for the specific implementation process of the sunning.

[0071] Further, the deionized water, defoaming agent, cellulose, wetting agent, dispersant, propylene glycol, construction waste, fly ash are premixed to obtain a base material; in the application, the premixing is preferably carried out at room temperature, the premixing time is preferably 20-40 min, the premixing is preferably carried out under stirring, and the stirring speed is preferably low to medium to low stirring; in the specific embodiment of the application, the premixing is preferably carried out in a stirring kettle.

[0072] After obtaining the base material, the base material and the Yellow River sedimentary sand are finally mixed; in the application, the final mixing is preferably carried out at room temperature, the final mixing time is preferably 20-30 min, the final mixing is preferably carried out under stirring, and the stirring speed is preferably low to medium to low stirring; in the specific embodiment of the application, the final mixing is preferably carried out in a stirring kettle.

[0073] Further, in the application, the static sealing mode is preferably liquid sealing, in the application, the static temperature is preferably room temperature, and the liquid sealing time is preferably 10 min; in the specific embodiment of the application, the liquid sealing is preferably carried out in a stirring kettle, and the application preferably slowly pours the deionized water into the stirring kettle, covers the cover plate to ensure the relative humidity in the stirring kettle.

[0074] Further, the liquid sealing requires that the deionized water is used in an amount of 10-20 kg, and the static time is 10 min.

[0075] The application can age the construction waste in the base material through static sealing, stimulate the activity of clay particles, and at the same time, the water on the surface of fly ash particles fully penetrates into the solid particles, thereby stimulating the activity of fly ash.

[0076] The application provides a true stone texture paint raw material containing deionized water, and adopts liquid sealing to prevent the base material from being different due to the volatilization of deionized water.

[0077] Further, after obtaining the base material, the application adds the base material to the Yellow River sedimentary sand for stirring to obtain a true stone texture paint of original color.

[0078] Further, in the specific embodiment of the application, the base material is added to the Yellow River sedimentary sand for stirring, which is preferably carried out in a stirring kettle.

[0079] Further, in the process of adding the base material to the Yellow River sedimentary sand for stirring, low, medium and low three rotation speeds are sequentially experienced, the low speed is ≤900 r / min, the medium speed is 900-1200 r / min; and the stirring temperature is ≤50℃.

[0080] Further, in the stirring, the speed increasing procedure in the initial low speed stirring is: increasing from the first speed to the first rate according to the first rotating speed, and performing the first keeping at the first rate; the first rate is preferably 500-900 r / min, and more preferably 650-750 r / min. The time of the first keeping is preferably 10-20 min. The present application makes the Yellow River sedimentary sand and other fillers in the original color real stone texture paint mix uniformly through the initial low speed stirring, preventing the destruction of the structure of the organic components due to the continuous temperature rising in the stirring process. In the initial low speed stage, the stirring temperature is preferably ≤30℃, and more preferably ≤20℃.

[0081] Further, in the stirring, the speed increasing procedure in the medium speed stirring is: increasing from the first rate to the second rate according to the second rotating speed, and performing the second keeping at the second rate; the second rate is preferably 900-1200 r / min, and more preferably 950-1100 r / min, and the second keeping time is preferably 10-20 min. The present application makes the fillers disperse uniformly through the medium speed stirring, increases the charge repulsion of the particle surface, reduces the dielectric concentration, ensures the distance between the particles and the double layer thickness, and prevents the flocculation and even the precipitation. In the medium speed stage, the stirring temperature is preferably ≤50℃, and more preferably ≤40℃.

[0082] Further, in the present application, the speed decreasing procedure in the final low speed stage in the stirring is: decreasing from the second rate to the third rate according to the third rotating speed, and performing the third keeping at the third rate; the third rate is preferably 500-900 r / min, and more preferably 650-750 r / min, and the time of the first keeping is preferably 20-30 min. The present application makes the temperature of the original color real stone texture paint gradually decrease through the final low speed stirring, and facilitates the color matching. In the final low speed stage, the stirring temperature is preferably ≤30℃, and more preferably ≤20℃.

[0083] After obtaining the original color real stone texture paint, the present application performs the color matching on the original color real stone texture paint to obtain the real stone texture paint, and the present application does not have special requirements for the specific implementation process of the color matching.

[0084] Further, the present application preferably detects the stone-like texture paint. The detection preferably comprises phase detection and physical property detection; in the present application, the phase detection preferably detects whether the stone-like texture paint has pinhole defects and whether the macroscopic morphology is regular; the physical property detection preferably detects whether the stone-like texture paint has qualified frost resistance, water resistance and thermal conductivity. In the present application, when the stone-like texture paint is subjected to phase detection and satisfies the conditions of few pinholes and complete macroscopic morphology, and at the same time, the stone-like texture paint is subjected to physical property detection and satisfies the conditions of frost resistance meeting the national standard requirement, water resistance ≥ 97h, and thermal conductivity ≤ 0.05 (W / (m·k)), the detection is qualified to obtain a stone-like texture paint product.

[0085] The present application also provides a use of the aforementioned stone-like texture paint on the outer wall of a building. Specifically, the stone-like texture paint is preferably used in the wall of a civil building, an industrial building or an agricultural building.

[0086] The technical solutions in the present application will be described clearly and completely below in combination with the embodiments in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0087] Embodiment 1

[0088] A stone-like texture paint, comprising a binder and Yellow River sedimentary sand at a mass ratio of 12:39;

[0089] The binder comprises an auxiliary agent and a filler, the auxiliary agent comprises 130 parts of deionized water, 3 parts of a multifunctional auxiliary agent, 150 parts of a silicone-acrylate emulsion, 7 parts of an anti-freezing agent, 9 parts of a film-forming auxiliary agent, 1.5 parts of an antifoaming agent, 3 parts of a preservative and 1.5 parts of a thickening agent;

[0090] The filler is construction waste and fly ash; the particle size of the construction waste and fly ash is ≤ 74 μm;

[0091] The mass ratio of the auxiliary agent to the filler is 29:0.8;

[0092] The particle size of the Yellow River sedimentary sand is 0.075-1.7 mm.

[0093] Figures 2-3 The SEM micrograph of the fly ash and the construction waste is shown.

[0094] The preparation method of the stone-like texture paint is as follows:

[0095] The construction waste and the fly ash are taken for standby use;

[0096] According to Figure 4The process flow shown, the auxiliary (deionized water 130 parts, multifunctional auxiliary 3 parts, silicone propylene emulsion 150 parts, antifreeze 7 parts, film forming auxiliary 9 parts, defoaming agent 1.5 parts, preservative 3 parts, thickening agent 1.5 parts) and filler (construction slag, fly ash) with 29:0.8 mass ratio in stirred tank pre-mixed 55min, get base material;

[0097] According to the five-point method to take the Yellow River sediment sand (SiO260-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO4-8%) in the natural state of sunning; After drying at 45℃ for 12h and then drying at 100℃ for 12h, put into the ball mill powder 5-10min, and then standard sieve screening for 0.075-1.7mm particle size;

[0098] The 430kg Yellow River sediment sand is added to 120kg base material for stirring, and the speed is increased from static low speed to 700r / min, and kept at 700r / min for 15min. From 700r / min to 1050r / min, and kept at 1050r / min for 15min. From 1050r / min to 700r / min, and kept at 700r / min for 25min. Finally, 550kg of original color true stone texture paint is obtained.

[0099] The 550kg original color true stone texture paint is adjusted in color, and the true stone texture paint is obtained. After spraying and drying at 45℃, the color difference is detected, and the true stone texture paint product as shown in Figure 1 is obtained.

[0100] Example 2

[0101] A true stone texture paint, the true stone texture paint includes base material and Yellow River sediment sand with a mass ratio of 11:40;

[0102] The base material includes auxiliary and filler, the auxiliary includes deionized water 130 parts, multifunctional auxiliary 3 parts, silicone propylene emulsion 150 parts, antifreeze 7 parts, film forming auxiliary 9 parts, defoaming agent 1.5 parts, preservative 3 parts, thickening agent 1.5 parts;

[0103] The filler is construction slag and fly ash; the particle size of the construction slag and fly ash is ≤74μm;

[0104] The mass ratio of the auxiliary to the filler is 36:1.3;

[0105] The particle size of the Yellow River sediment sand is 0.075-1.7mm.

[0106] Figures 2-3 The SEM micrograph of fly ash and construction slag is shown.

[0107] The preparation method of the above-mentioned stone-textured paint is as follows:

[0108] Collect construction waste and fly ash using the five-point method for later use.

[0109] according to Figure 4 The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a mixing tank at a mass ratio of 36:1.3 for 65 minutes. Then, the deionized water is slowly poured into the mixing tank and the mixture is liquid-sealed for 8-15 minutes to obtain the base material.

[0110] Yellow River sedimentary sand (SiO2 60-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO 4-8%) was collected using the five-point method and sun-dried under natural conditions. After drying at 45℃ for 12 hours, it was dried at 100℃ for 12 hours, then ground in a ball mill for 5-10 minutes, and finally sieved through a standard sieve to obtain particles with a diameter of 0.075-1.7 mm.

[0111] 400 kg of Yellow River sediment sand was added to 111 kg of base material and stirred. The stirring speed was increased from a standstill to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to 1050 r / min and maintained at 1050 r / min for 15 minutes. Finally, the speed was decreased from 1050 r / min to 700 r / min and maintained at 700 r / min for 25 minutes, resulting in 511 kg of original color stone-textured paint.

[0112] 511 kg of original color stone-textured paint was mixed to obtain stone-textured paint. After spraying on the board and drying at 60°C, the color difference was tested to obtain the finished stone-textured paint.

[0113] Example 3

[0114] A real stone textured paint, the real stone textured paint comprising a base material and Yellow River sedimentary sand in a mass ratio of 15:40;

[0115] The base material includes additives and fillers. The additives include 130 parts of deionized water, 3 parts of multifunctional additives, 150 parts of silicone-acrylic emulsion, 7 parts of antifreeze, 9 parts of film-forming aid, 1.5 parts of defoamer, 3 parts of preservative, and 1.5 parts of thickener.

[0116] The filler material is construction waste and fly ash; the particle size of the construction waste and fly ash is ≤74μm;

[0117] The mass ratio of the additive to the filler is 33:1;

[0118] The particle size of the Yellow River sediment sand is 0.075-1.7 mm.

[0119] Figures 2-3 The SEM micrographs of fly ash and construction slag are shown.

[0120] The preparation method of the above-mentioned real stone texture paint is as follows:

[0121] The construction slag and fly ash are taken according to the five-point method, dried at 45°C for 12 h, then dried at 100°C for 12 h, put into a ball mill for 5-10 min, and sieved using a 170 mesh standard sieve.

[0122] According to the process flow shown, Figure 4 The base material is obtained by slowly pouring the deionized water into the stirred tank after pre-mixing the additives (deionized water 130 parts, multifunctional additive 3 parts, silicone propylene emulsion 150 parts, antifreeze 7 parts, film forming additive 9 parts, defoaming agent 1.5 parts, preservative 3 parts, thickening agent 1.5 parts) and fillers (construction slag, fly ash) in a mass ratio of 33:1 in the stirred tank for 60 min, and then liquid sealing for 8-15 min.

[0123] The Yellow River sediment sand (SiO2 60-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO 4-8%) is taken according to the five-point method and sun-dried in a natural state; dried at 45°C for 12 h, then dried at 100°C for 12 h, put into a ball mill for 5-10 min, and then sieved into a 0.075-1.7 mm particle size by a standard sieve;

[0124] 400 kg of Yellow River sediment sand is added to 150 kg of base material for stirring, the speed is increased from static low speed to 700 r / min, and maintained at 700 r / min for 15 min. The speed is increased from 700 r / min to 1050 r / min, and maintained at 1050 r / min for 15 min. The speed is decreased from 1050 r / min to 700 r / min, and maintained at 700 r / min for 25 min. Finally, 600 kg of original color real stone texture paint is obtained.

[0125] The 600 kg of original color real stone texture paint is color adjusted to obtain real stone texture paint, which is dried at 55°C in an air atmosphere after spraying, and the color difference is detected to obtain the finished real stone texture paint.

[0126] Comparative Example 1

[0127] Construction slag and fly ash are taken for standby.

[0128] According to the process flow shown, Figure 4The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a mixing tank at a mass ratio of 28:0.7 for 55 minutes to obtain the base material.

[0129] Natural sand was collected using the five-point method and then dried naturally for later use.

[0130] 430 kg of natural sand was added to 120 kg of base material and stirred. The stirring speed was increased from a standstill at low speed to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to medium speed and maintained at 1050 r / min for 15 minutes. Finally, the speed was decreased from 1050 r / min to low speed and maintained at 700 r / min for 25 minutes, resulting in 550 kg of original color stone-textured paint.

[0131] 550kg of original color stone-textured paint was mixed to obtain stone-textured paint. After spraying on the board and drying at 45℃, the color difference was tested to obtain the finished stone-textured paint.

[0132] Comparative Example 2

[0133] Collect construction waste and fly ash using the five-point method for later use.

[0134] according to Figure 4 The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a mixing tank at a mass ratio of 38:1.3 for 65 minutes to obtain the base material.

[0135] Natural sand was collected using the five-point method and then dried naturally for later use.

[0136] 400 kg of natural sand was added to 111 kg of base material and stirred. The stirring speed was increased from a standstill at low speed to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to medium speed and maintained at 1050 r / min for 15 minutes. The speed was then decreased from 1050 r / min to low speed and maintained at 700 r / min for 25 minutes, finally yielding 511 kg of original color stone-textured paint.

[0137] 511 kg of original color stone-textured paint was mixed to obtain stone-textured paint. After spraying on the board and drying at 60°C, the color difference was tested to obtain the finished stone-textured paint.

[0138] Comparative Example 3

[0139] Construction waste and fly ash were collected using the five-point method, dried at 45℃ for 12 hours, then ground in a ball mill for 5-10 minutes, and sieved using a 170-mesh standard sieve.

[0140] according to Figure 4 The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a 33:1 ratio in a mixing tank for 60 minutes. Then, the deionized water is slowly poured into the mixing tank and the mixture is liquid-sealed for 8-15 minutes to obtain the base material.

[0141] Yellow River sedimentary sand (SiO2 60-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO 4-8%) was taken using the five-point method and dried naturally, but the Yellow River sedimentary sand was not screened.

[0142] 400 kg of Yellow River sediment sand was added to 150 kg of base material and stirred. The stirring speed was increased from a standstill at low speed to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to medium speed and maintained at 1050 r / min for 15 minutes. Finally, the speed was decreased from 1050 r / min to low speed and maintained at 700 r / min for 25 minutes, resulting in 600 kg of original color stone-textured paint.

[0143] 600 kg of original color stone-textured paint was mixed to obtain stone-textured paint. After spraying on the board and drying at 55°C, the color difference was tested to obtain the finished stone-textured paint.

[0144] Comparative Example 4

[0145] Collect construction waste and fly ash using the five-point method for later use.

[0146] according to Figure 4 The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a mixing tank at a mass ratio of 28:1.3 for 50 minutes. Then, the deionized water is slowly poured into the mixing tank and the mixture is liquid-sealed for 8-15 minutes to obtain the base material.

[0147] Yellow River sedimentary sand (SiO2 60-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO 4-8%) was collected using the five-point method and dried naturally; then it was sieved through a standard sieve to a particle size of 0.075-1.7 mm.

[0148] 450 kg of Yellow River sedimentary sand was added to 120 kg of base material (with Yellow River sedimentary sand comprising a relatively high proportion) and stirred. The stirring speed was increased from a stationary low speed to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to 1050 r / min and maintained at 1050 r / min for 15 minutes. Finally, the speed was decreased from 1050 r / min to 700 r / min and maintained at 700 r / min for 25 minutes, resulting in 550 kg of original color stone-textured paint.

[0149] 570kg of original color stone-textured paint was mixed to obtain stone-textured paint. After spraying on the board and drying at 55℃, the color difference was tested to obtain the finished stone-textured paint.

[0150] Comparative Example 5

[0151] Collect construction waste and fly ash using the five-point method for later use.

[0152] according to Figure 4 The process flow shown involves premixing the additives (130 parts deionized water, 3 parts multifunctional additives, 150 parts silicone-acrylic emulsion, 7 parts antifreeze, 9 parts film-forming aid, 1.5 parts defoamer, 3 parts preservative, and 1.5 parts thickener) with fillers (construction waste and fly ash) in a mixing tank at a mass ratio of 38:0.7 for 70 minutes. Then, the deionized water is slowly poured into the mixing tank and the mixture is liquid-sealed for 8-15 minutes to obtain the base material.

[0153] Yellow River sedimentary sand (SiO2 60-70%, Al2O3 10-20%, Fe2O3 2-10%, K2O 3-6%, CaO 4-8%) was collected using the five-point method and dried naturally; then it was sieved through a standard sieve to a particle size of 0.075-1.7 mm.

[0154] 470 kg of Yellow River sedimentary sand was added to 120 kg of base material (with Yellow River sedimentary sand comprising a relatively high proportion) and stirred. The stirring speed was increased from a stationary low speed to 700 r / min and maintained at 700 r / min for 15 minutes. The speed was then increased from 700 r / min to 1050 r / min and maintained at 1050 r / min for 15 minutes. Finally, the speed was decreased from 1050 r / min to 700 r / min and maintained at 700 r / min for 25 minutes, resulting in 550 kg of original color stone-textured paint.

[0155] 590kg of original color real stone texture paint is color matched to obtain real stone texture paint. After spraying and drying at 55℃, the color difference is detected to obtain real stone texture paint products.

[0156] Test Example 1

[0157] The real stone texture paint prepared in Examples 1-3 and Comparative Examples 1-5 is tested for frost resistance, water resistance and thermal conductivity, wherein the test standards for frost resistance, water resistance and thermal conductivity are JC / T 25-1999, GB / T 1773-1993 and JG / T235-2014; the test results are shown in Table 1. As can be seen from Table 1, the real stone texture paint prepared in Examples 1-3 has frost resistance meeting the national standard requirements, water resistance ≥97h and thermal conductivity ≤0.05(W / (m·k)). The real stone texture paint provided by the application not only saves expensive chemical raw materials, but also meets the national policy of utilizing large amounts of solid waste, and therefore has a wide application prospect.

[0158] Table 1 Performance test of products prepared in Examples 1-3 and Comparative Examples 1-5

[0159] Serial number Frost resistance Water resistance / h Thermal conductivity / W / (m-k) Example 1 Good 93.7 0.05 Example 2 Good 95.1 0.04 Example 3 Excellent 97.9 0.03 Comparative Example 1 General 91.2 0.06 Comparative Example 2 General 90.6 0.06 Comparative Example 3 General 92.4 0.06 Comparative Example 4 Poor 89.3 0.08 Comparative Example 5 Very poor 84.3 0.1

[0160] Through experimental analysis, it is found that the type, proportion and process of sand have a great influence on the performance of real stone texture paint.

[0161] Specifically as follows:

[0162] Comparative Examples 1 and 2 use natural sand, and since the water absorption rate of natural sand is relatively low, there is a slight advantage compared with the Yellow River sediment sand;

[0163] The water content in construction waste and fly ash is relatively high, and the drying temperature used in Comparative Example 3 is not enough to volatilize the internal water, resulting in a difference in water content in the later period; using deionized water liquid seal can effectively reduce the water evaporation of the sample during aging, while ensuring the reaction environment between molecules;

[0164] The drying condition of sand in the natural state is closely related to the external environment. Under suitable conditions, the water content after drying for 3 days is equivalent to that after drying for 24h in an oven, but the unsorted sand has complex gradation (for example, Comparative Example 3), and has a high water absorption rate, which reduces the sample cohesion. Moreover, the Yellow River sediment sand is seriously affected by weathering, resulting in too many fine or powdery particles, so the unsorted Yellow River sediment sand seriously affects the working performance of the real stone paint. Moreover, excessive Yellow River sediment sand will increase the surface area of the aggregate and reduce the slurry wrapping rate, thereby reducing the performance of the real stone texture paint.

[0165] When the amount of the Yellow River sediment sand is large (for example, Comparative Examples 4 and 5), the content of the emulsion and the additive in the real stone texture paint is seriously affected, and the wrapping ability and the thermal conductivity are reduced.

[0166] The above description is only preferred embodiments of the present application, and is not intended to limit the present application in any other form, and any modification or equivalent change made according to the technical essence of the present application still falls within the scope of the present application.

Claims

1. A stone-like texture paint, characterized by, The true stone texture paint comprises a binder and Yellow River sediment sand in a mass ratio of (5-15):(30-40); The binder comprises an additive and a filler, the additive comprises the following components in mass fraction: deionized water 100-150 parts, cellulose 1-3 parts, multifunctional additive 1-5 parts, silicone propylene emulsion 120-190 parts, antifreezing agent 4-9 parts, film forming additive 6-11 parts, defoaming agent 0.5-3 parts, preservative 1-5 parts, thickening agent 0.5-3 parts; The filler comprises construction slag and fly ash; the mass ratio of the additive to the filler is (28-38):(0.7-1.3); the particle size of the construction slag and fly ash is ≤74 μm, and the particle size of the Yellow River sediment sand is 0.075-1.7 mm; The Yellow River sediment sand comprises the following components in mass percentage: 60-70% of SiO2, 10-20% of Al2O3, 2-10% of Fe2O3, 3-6% of K2O, and 4-8% of CaO; The total water content of the construction slag and the fly ash is ≤5%; The preparation method of the true stone texture paint comprises the following steps: The construction slag is sorted, dried, and crushed, and then sieved through a 150-190 mesh standard sieve; The fly ash is dried and crushed, and then sieved through a 150-190 mesh standard sieve; The deionized water, defoaming agent, cellulose, antifreezing agent, multifunctional additive, silicone propylene emulsion, film forming additive, preservative, thickening agent, construction slag, and fly ash are sequentially mixed to obtain a binder; The binder is sealed and then statically placed for 8-15 minutes; The binder after static placement is added to the Yellow River sediment sand for stirring to obtain a raw color true stone texture paint; and The raw color true stone texture paint is color adjusted to obtain the true stone texture paint. In the stirring process, the binder is sequentially stirred at low, medium, and low speeds, the low speed is ≤900 r / min, and the medium speed is 900-1200 r / min; the stirring temperature is ≤50 ℃.

2. The stone-like texture paint according to claim 1, characterized by, The Yellow River sediment sand further comprises MgO, and the mass percentage of the MgO is 0.01-3%.

3. The stone-textured paint according to claim 1 or 2, characterized in that, The mass ratio of the additive to the filler is 33:

1.

4. A process for the preparation of a stone-like paint according to any one of claims 1 to 3, characterized in that, The preparation method comprises the following steps: The construction slag is sorted, dried, and crushed, and then sieved through a 150-190 mesh standard sieve; The fly ash is dried and crushed, and then sieved through a 150-190 mesh standard sieve; The deionized water, defoaming agent, cellulose, antifreezing agent, multifunctional additive, silicone propylene emulsion, film forming additive, preservative, thickening agent, construction slag, and fly ash are sequentially mixed to obtain a binder; The binder is sealed and then statically placed for 8-15 minutes; The binder after static placement is added to the Yellow River sediment sand for stirring to obtain a raw color true stone texture paint; and The raw color true stone texture paint is color adjusted to obtain the true stone texture paint. In the stirring process, the binder is sequentially stirred at low, medium, and low speeds, the low speed is ≤900 r / min, and the medium speed is 900-1200 r / min; the stirring temperature is ≤50 ℃.

5. The preparation method according to claim 4, characterized in that, The Yellow River sediment sand further comprises MgO, and the mass percentage of the MgO is 0.01-3%. The mass ratio of the additive to the filler is 33:

1. The preparation method comprises the following steps: The construction slag is sorted, dried, and crushed, and then sieved through a 150-190 mesh standard sieve; The fly ash is dried and crushed, and then sieved through a 150-190 mesh standard sieve; The deionized water, defoaming agent, cellulose, antifreezing agent, multifunctional additive, silicone propylene emulsion, film forming additive, preservative, thickening agent, construction slag, and fly ash are sequentially mixed to obtain a binder; The binder is sealed and then statically placed for 8-15 minutes; The binder after static placement is added to the Yellow River sediment sand for stirring to obtain a raw color true stone texture paint; and The raw color true stone texture paint is color adjusted to obtain the true stone texture paint. In the stirring process, the binder is sequentially stirred at low, medium, and low speeds, the low speed is ≤900 r / min, and the medium speed is 900-1200 r / min; the stirring temperature is ≤50 ℃. The Yellow River sediment sand further comprises MgO, and the mass percentage of the MgO is 0.01-3%. The mass ratio of the additive to the filler is 33:

1. The preparation method comprises the following steps: The construction slag is sorted, dried, and crushed, and then sieved through a 150-190 mesh standard sieve; The fly ash is dried and crushed, and then sieved through a 150-190 mesh standard sieve; The deionized water, defoaming agent, cellulose, antifreezing agent, multifunctional additive, silicone propylene emulsion, film forming additive, preservative, thickening agent, construction slag, and fly ash are sequentially mixed to obtain a binder; The binder is sealed and then statically placed for 8-15 minutes; The binder after static placement is added to the Yellow River sediment sand for stirring to obtain a raw color true stone texture paint; and The raw color true stone texture paint is color adjusted to obtain the true stone texture paint. In the stirring process, the binder is sequentially stirred at low, medium, and low speeds, the low speed is ≤900 r / min, and the medium speed is 900-1200 r / min; the stirring temperature is ≤50 ℃. The Yellow River sediment sand further comprises MgO, and the mass percentage of the MgO is 0.01-3%. The mass ratio of the additive to the filler is 33:

1.

6. The production method according to claim 5, wherein The stirring time is 10-20 min at the second speed.

7. The preparation method according to claim 6, characterized in that, The stirring time is 20-30 min at the third speed.

8. Use of the stone-like paint according to any one of claims 1 to 3, characterized in that, The true stone texture paint is used on the building wall.

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