CN-122011866-A - Green and environment-friendly stone-like paint with desert sand as aggregate and preparation method thereof

Abstract

The invention discloses an environment-friendly stone-like paint taking desert sand as an aggregate and a preparation method thereof, wherein the environment-friendly stone-like paint taking the desert sand as the aggregate is prepared from the following raw materials, by weight, 150-200 parts of silicone-acrylic emulsion, 400-500 parts of coloring modified desert sand, 50-100 parts of auxiliary aggregate, 2-4 parts of thickener, 8-12 parts of film forming additive, 1-2 parts of preservative and 100-150 parts of water, wherein the coloring modified desert sand is the desert sand after surface activation treatment and high-temperature sintering coloring, and the environment-friendly stone-like paint with stable color, strong adhesive force and excellent weather resistance is successfully prepared through the modification treatment and the synergistic optimization of a formula and a process of the desert sand, so that the problems of waste of desert sand resources in the desert area and the problems of the conventional stone-like paint aggregate are solved, the high-valued utilization of solid waste resources is realized, and the environment-friendly paint has remarkable economic value, social value and environmental protection value and wide application prospect in the field of building exterior wall decoration materials.

Inventors

• YIN YEXIAN
• WANG PENGGANG
• YIN CHAOBIN
• ZHANG HAO
• Dai kaoshan
• Niu Anwei
• WANG JIANZE
• MENG AIGUO
• YE YONGPENG
• CHEN SONG
• WANG YANG
• WANG YIHUA
• MO BING
• SHAO CHENGCHENG
• LIU ZHIJUN
• SHI YUNGANG

Assignees

• 山东电力建设第三工程有限公司

Dates

Publication Date

20260512

Application Date

20260304

Claims (10)

1. 1. The green environment-friendly stone paint taking desert sand as aggregate is characterized by being prepared from the following raw materials in parts by weight: 150-200 parts of silicone-acrylic emulsion; 400-500 parts of coloring modified desert sand; 50-100 parts of auxiliary aggregate; 2-4 parts of a thickening agent; 8-12 parts of film forming auxiliary agent; 1-2 parts of preservative; 100-150 parts of water; Wherein the colored modified desert sand is the desert sand which is subjected to surface activation treatment and high-temperature sintering coloring, and the particle size range of the colored modified desert sand is 20-80 meshes.
2. 2. The green and environment-friendly stone paint with desert sand as aggregate according to claim 1, wherein the preparation method of the colored modified desert sand comprises the following steps: a. The pretreatment, namely washing and pickling the original desert sand, washing to be neutral, and finally drying; b. Surface activation treatment, namely soaking the pretreated desert sand with a silane coupling agent solution, and then drying; c. and (3) coloring treatment, namely mixing the desert sand with inorganic mineral pigment after surface activation, and sintering for 1-2 hours at 800-900 ℃.
3. 3. The green and environment-friendly stone paint with desert sand as aggregate according to claim 2, wherein the silane coupling agent is KH-560, and the solution concentration is 1-2%.
4. 4. The green and environment-friendly stone paint with desert sand as aggregate according to claim 2, wherein the inorganic mineral pigment is ferric oxide pigment, and the dosage of the inorganic mineral pigment is 3% -5% of the mass of the desert sand.
5. 5. The green environment-friendly stone paint with the desert sand as the aggregate according to claim 2, wherein in the step a, the pickling is to soak the desert sand for 2-4 hours by adopting 5% -10% of dilute hydrochloric acid, the temperature of the drying treatment is 105+/-5 ℃, and the soaking time of the surface activation in the step b is 1-2 hours.
6. 6. The green and environment-friendly stone paint with desert sand as aggregate according to claim 1, wherein the auxiliary aggregate is 40-120 mesh white quartz sand or marble powder.
7. 7. The green and environment-friendly stone paint with desert sand as aggregate according to claim 1, wherein the thickener is hydroxyethyl cellulose.
8. 8. The green and environment-friendly stone paint with desert sand as aggregate according to claim 1, wherein the film forming auxiliary agent is alcohol ester twelve.
9. 9. A method for preparing the green environment-friendly stone paint using desert sand as aggregate according to any one of claims 1-8, which is characterized by comprising the following steps: S100, uniformly stirring and mixing water, a thickening agent, a preservative and a film forming auxiliary agent; S200, adding silicone-acrylic emulsion, and uniformly stirring; and S300, slowly adding the coloring modified desert sand and the auxiliary aggregate, and stirring until all the aggregates are uniformly wrapped by the slurry, thus obtaining the real stone paint finished product.
10. 10. The method for preparing the green and environment-friendly stone paint with the desert sand as aggregate according to claim 9, wherein stirring in the step S100-S300 is carried out at a low speed, wherein the low speed is that the stirring speed is 350-500rpm, the stirring in the step S200 is carried out for 5-10 minutes, and the stirring in the step S300 is carried out for 10-15 minutes.

Description

Green and environment-friendly stone-like paint with desert sand as aggregate and preparation method thereof Technical Field The invention relates to the technical field of building coatings, in particular to an environment-friendly stone-like paint taking desert sand as aggregate and a preparation method thereof. Background The stone paint is used as a thick building paint with decorative effect similar to natural stone, and is widely applied to building exterior wall decoration engineering by virtue of the advantages of elegant appearance, strong texture, good weather resistance and the like. The aggregate of the traditional real stone paint mainly adopts natural color sand or dyed color sand, however, the natural color sand has limited resource reserves, the ecological environment is seriously damaged by excessive exploitation, the exploitation and transportation costs are higher, and the dyed color sand has the problems of poor color fastness, easy fading, unstable bonding with emulsion and the like, so that the real stone paint coating is easy to fall off, color change and the like in the use process, and the building decoration effect and the service life are influenced. The desert sand has extremely abundant reserves in the global scope, but has monotonous color, a plurality of tan surfaces, smooth surfaces, chemical inertness, poor interfacial compatibility with coating emulsion and weak binding force, and can lead to insufficient adhesive force of a paint film and easy cracking and falling off when being directly used as a real stone paint aggregate, and meanwhile, the requirement of architectural decoration on color diversity can not be met, so that the desert sand can not be effectively utilized for a long time. How to modify the desert sand by technical means, solve the problems of single color and insufficient binding force, convert the desert sand into high-performance real stone paint aggregate, realize the recycling and high-value utilization of the desert sand, reduce the production cost of the real stone paint, reduce the environmental damage caused by the exploitation of natural color sand, and become the technical problem to be solved in the field. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides the environment-friendly real stone paint taking the desert sand as the aggregate and the preparation method thereof, and the special modification treatment is carried out on the desert sand to solve the problems of single color and weak bonding force with emulsion of the desert sand, so that the environment-friendly real stone paint with stable color, strong adhesive force and excellent weather resistance is prepared, and the high-value application of the desert sand in high-end building paint is realized. The invention is realized in the following way: According to the first aspect of the invention, the invention provides an environment-friendly stone paint with desert sand as aggregate, which is prepared from the following raw materials in parts by weight: 150-200 parts of silicone-acrylic emulsion; 400-500 parts of coloring modified desert sand; 50-100 parts of auxiliary aggregate; 2-4 parts of a thickening agent; 8-12 parts of film forming auxiliary agent; 1-2 parts of preservative; 100-150 parts of water. The colored modified desert sand is the desert sand which is subjected to surface activation treatment and high-temperature sintering coloring, the grain size range of the colored modified desert sand is 20-80 meshes, and the desert sand in the grain size range can ensure that the real stone paint coating has good texture and air permeability. Further, the preparation method of the colored modified desert sand comprises the following steps: a. The pretreatment, namely washing the original desert sand with water to remove dust and soluble impurities attached to the surface, washing with acid, washing with clear water until the pH value is neutral, and finally drying; b. Surface activation treatment, namely soaking the pretreated desert sand with a silane coupling agent solution, and then drying; c. And (3) coloring treatment, namely mixing the desert sand with the inorganic mineral pigment after surface activation, sintering for 1-2 hours at 800-900 ℃, firmly combining the pigment with the desert sand particles through high-temperature sintering, and cooling to obtain the colored modified desert sand. Furthermore, the silane coupling agent is KH-560, the solution concentration of the silane coupling agent is 1-2%, and the silane coupling agent can effectively improve the surface activity of desert sand and improve the bonding performance with emulsion. Furthermore, the inorganic mineral pigment is an iron oxide pigment (such as iron oxide red, iron oxide yellow, iron oxide black and the like), the dosage of the inorganic mineral pigment is 3-5% of the quality of the desert sand, and the iron oxide pigment has the advantages of bright color,