CN110981310A - Light heat-preservation real stone paint coating and preparation method thereof - Google Patents

Abstract

A light-weight thermal insulation real stone paint coating and a preparation method thereof belong to the technical field of architectural paint preparation, and can solve the problems of high raw material cost, short service life and lack of building thermal insulation effect of the existing real stone paint. He 42.5 cement is inorganic gelling agent, foamed concrete particles are used as lightweight porous aggregate, real stone paint emulsion, hydroxypropyl methylcellulose and dispersible latex powder are used as organic gelling agent, and a small amount of functional additives are added. The preparation of a low-cost building wall coating with thermal insulation function, such as inorganic pigments and defoamers, is not only conducive to the efficient utilization of industrial solid waste resources, but also helps to reduce the amount of organic emulsion and greatly reduce the real stone paint coating. It can reduce the production cost, increase the bonding performance between the coating and the building substrate, prolong the service life of the coating, and at the same time have the function of light insulation.

Description

Light heat-preservation real stone paint coating and preparation method thereof

Technical Field

The invention belongs to the technical field of building coating preparation, and particularly relates to a light heat-preservation real stone paint coating and a preparation method thereof.

Background

The building wall decorative paint is mostly made of real stone paint, the decorative effect of the real stone paint is exactly like marble and granite, and the real stone paint is mainly prepared by natural stone powder with various colors and synthetic resin emulsion. The building decorated by the stone paint has natural and real natural color and luster, has certain stereoscopic impression, and is suitable for indoor and outdoor decoration of various buildings. However, most of the current real stone paint wall decorative coatings are formed by mixing colored sand and emulsion, the proportion of the emulsion accounts for more than 30% of the total amount, the preparation cost is high, and the content of the organic emulsion is high, so that the bonding performance and the weather resistance between the real stone paint and an inorganic wall are limited, the problems of cracking, falling, aging, deterioration and the like are easy to occur, the service life of the real stone paint is generally not more than 15 years, and the service life of the real stone paint cannot be as long as that of a building; in addition, the main raw material of the stone-like paint is colored sand, and the stone-like paint has no heat preservation effect.

Disclosure of Invention

The invention provides a light heat-preservation real stone paint coating and a preparation method thereof, aiming at the problems that the existing real stone paint is high in raw material cost, short in service life, free of building heat preservation effect and the like. The invention takes industrial solid waste ultrafine powder and 42.5 cement as inorganic gelatinizing agents, takes foaming concrete particles as light porous aggregates, takes real stone paint emulsion, hydroxypropyl methylcellulose (HPMC) and dispersible latex powder as organic gelatinizing agents, and is added with a small amount of functional additives such as inorganic pigment and defoaming agent to prepare the low-cost building wall coating with the heat preservation function, thereby being beneficial to realizing the high-efficiency utilization of industrial solid waste resources, reducing the using amount of the organic emulsion, greatly reducing the production cost of the real stone paint, increasing the adhesive property between the coating and a building base material, prolonging the service life of the coating and having the light heat preservation function.

The invention adopts the following technical scheme:

a light heat-preservation real stone paint coating comprises the following components in parts by weight: industrial solid waste ultra-fine powder: 60-80 parts of cement, 42.5: 20-40 parts of hydroxypropyl methyl cellulose: 0.3-0.5 parts of dispersible latex powder: 0.8-1.2 parts of pigment: 10-30 parts of defoaming agent: 0.1 part of foamed concrete particles: 50-80 parts of real stone paint emulsion: 15-35 parts.

Further, the median diameter D of the industrial solid waste superfine powder₅₀2-5 mu m, the industrial solid waste superfine powder comprises 30-40% of fly ash, 55-65% of steel slag, 5-15% of desulfurized gypsum and hydroxypropyl methyl cellulose, the viscosity of the hydroxypropyl methyl cellulose is 100000 mpa.s, and the dispersible latex powder is prepared from Shandong cellulose in ChinaThe research institute, model YXF-2019-166, the particle size of the foaming concrete particles is 20-30 meshes, and the viscosity of the real stone paint emulsion is 1530 cP.

A preparation method of a light heat-preservation real stone paint coating comprises the following steps:

firstly, weighing each component in proportion;

secondly, uniformly stirring and mixing the components except the real stone paint emulsion in proportion to obtain a component A, bagging for later use, wherein the stirring time is 10-30min, and the stirring speed is 60-180 r/min;

thirdly, proportionally filling the real stone paint emulsion into a barrel to serve as a B group material;

and fourthly, adding water in an amount which is 5 to 6 times of the weight of the component B, stirring and diluting, adding the component A, mixing and pulping to obtain the coating.

The invention has the following beneficial effects:

1. the wall decorative coating with the heat preservation effect is prepared by adopting industrial solid waste ultrafine powder as an inorganic gel material and foaming concrete particles as aggregate as main raw materials at low cost, and has the comprehensive effects of energy conservation, environmental protection, comprehensive utilization of solid waste resources, low cost, high strength, high durability and the like.

2. The invention has the advantages of convenient use, simple equipment and easy operation.

3. The preparation method is simple, stable in performance and suitable for large-scale production.

Detailed Description

Example 1

The light heat-preservation real stone paint coating is prepared from the following raw materials in parts by weight: 60g of industrial solid waste superfine powder (18 g of fly ash, 30 percent of the fly ash, 36g of steel slag, 60 percent of the fly ash, 6g of desulfurized gypsum, 10 percent of the desulfurized gypsum) and 40g of 42.5 cement; 0.4g of hydroxypropyl methyl cellulose, 1g of dispersible latex powder, 0.1g of defoaming agent, 15g of pigment, 15g of real stone paint emulsion and 55g of foamed concrete particles. Wherein the median diameter of the industrial solid waste superfine powder is 2-5 mu m, the viscosity of hydroxypropyl methylcellulose is 100000mpa & s, the viscosity of the real stone paint emulsion is 1530cp, and the foamed concrete particles are 20-30 meshes.

The preparation and use method of the light heat-preservation real stone paint comprises the following steps of ① accurately weighing raw materials of 60g of industrial solid waste ultra-fine powder, 40g of 42.5 cement, 0.4g of hydroxypropyl methyl cellulose, 1g of dispersible latex powder, 0.1g of defoaming agent, 15g of pigment, 15g of real stone paint emulsion and 55kg of foamed concrete particles, ② adding the solid materials into a stirring kettle to be uniformly mixed for 10-30 minutes at a stirring speed of 60-180 revolutions per minute to prepare a component A material bag for later use, ③ adding the real stone paint emulsion into the stirring kettle, diluting the solid stone paint emulsion with water according to the weight ratio of =1: 6, adding the component A material to be mixed for pulping to prepare the paint, and ④ directly scraping the slurry paint on a calcium silicate board according to the standard of JG/T24-2000 synthetic resin emulsion sand-wall-shaped building paint to complete the paint and detect related indexes.

Example 2

The present example refers to the raw material formulation and the preparation and construction method of example 1, except that 80g of industrial solid waste ultrafine powder (24 g of fly ash, 30% of steel slag, 48g of steel slag, 60% of desulfurized gypsum, 8g of desulfurized gypsum, 10%) 42.5 g of cement, 20g of pigment, 35kg of real stone paint emulsion, 60kg of foamed concrete particles, and the real stone paint emulsion: water =1:5.5, as in example 1.

Example 3

The present example refers to the raw material formulation and the preparation and construction method of example 1, except that 70g of industrial solid waste ultrafine powder (21 g of fly ash, 30% of steel slag, 42g of steel slag, 60% of desulfurized gypsum, 7g of desulfurized gypsum, 10%) 42.5 g of cement, 20g of pigment, 25g of real stone paint emulsion, 70kg of foamed concrete particles, and the real stone paint emulsion: water =1:5, as in example 1.

The properties of the coatings of examples 1 to 3 were measured according to the standard method of JG/T24-2000 "synthetic resin emulsion Sand wall building coatings" as shown in the following table:

TABLE 1 Performance test

Therefore, the light heat-preservation real stone paint disclosed by the invention is washable, easy to construct, high in hardness, fast in film forming, long in storage time, convenient to use and stable in performance.

Claims (3)

1. A light heat-preservation real stone paint coating is characterized in that: the composition comprises the following components in parts by weight: industrial solid waste ultra-fine powder: 60-80 parts of cement, 42.5: 20-40 parts of hydroxypropyl methyl cellulose: 0.3-0.5 parts of dispersible latex powder: 0.8-1.2 parts of pigment: 10-30 parts of defoaming agent: 0.1 part of foamed concrete particles: 50-80 parts of real stone paint emulsion: 15-35 parts.

2. The light heat-insulating real stone paint coating as claimed in claim 1, wherein: the median diameter D of the industrial solid waste superfine powder₅₀The particle size of the industrial solid waste superfine powder is 2-5 mu m, the industrial solid waste superfine powder comprises 30-40% of fly ash, 55-65% of steel slag, 5-15% of desulfurized gypsum and hydroxypropyl methyl cellulose, the viscosity of the hydroxypropyl methyl cellulose is 100000 mpa.s, the particle size of the foamed concrete particles is 20-30 meshes, and the viscosity of the real stone paint emulsion is 1530 cP.

3. A method for preparing a light heat-insulating real stone paint coating as claimed in claim 1 or 2, which is characterized in that: the method comprises the following steps:

firstly, weighing each component in proportion;

secondly, uniformly stirring and mixing the components except the real stone paint emulsion in proportion to obtain a component A, bagging for later use, wherein the stirring time is 10-30min, and the stirring speed is 60-180 r/min;

thirdly, proportionally filling the real stone paint emulsion into a barrel to serve as a B group material;

and fourthly, adding water in an amount which is 5 to 6 times of the weight of the component B, stirring and diluting, adding the component A, mixing and pulping to obtain the coating.