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CN-122010520-A - Inorganic decorative whole aggregate material and preparation method and application thereof

CN122010520ACN 122010520 ACN122010520 ACN 122010520ACN-122010520-A

Abstract

The application provides an inorganic decorative whole aggregate material and a preparation method and application thereof, belonging to the technical field of building coatings. The inorganic decorative whole aggregate material comprises, by mass, 35-50 parts of a composite cementing material, 3-7 parts of a composite alkali-exciting agent, 45-60 parts of a functional composite filler, 2-6 parts of a crystallization active agent, 1.5-4.0 parts of polymer rubber powder, 0.5-1.5 parts of a hydrophobic water reducer and 0.1-0.5 part of a water-retaining agent, wherein the functional composite filler comprises pigment and heat-insulating filler, and the crystallization active agent comprises a composite structure taking metakaolin as a core and taking a crystallization waterproof agent and a nano nucleating agent as a shell. The application can obviously improve the impermeability, compressive strength and self-repairing performance of the material and reduce the heat conductivity coefficient of the material through reasonable raw material formulation and unique preparation process.

Inventors

  • CHEN KEYANG
  • Peng Boran
  • LI XIN

Assignees

  • 金彩螺新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260106

Claims (10)

  1. 1. The inorganic decorative whole aggregate material is characterized by comprising the following components in parts by mass: 35-50 parts of composite cementing material, 3-7 parts of composite alkali activator, 45-60 parts of functional composite filler, 2-6 parts of crystallization activator, 1.5-4.0 parts of polymer rubber powder, 0.5-1.5 parts of hydrophobic water reducer and 0.1-0.5 part of water-retaining agent; Wherein the functional composite filler comprises pigment and heat insulation filler; The crystallization active agent comprises a composite structure taking metakaolin as a core and taking a crystallization type waterproof agent and a nano nucleating agent as a shell.
  2. 2. The inorganic decorative whole aggregate material according to claim 1, wherein the pigment in the functional composite filler is hydrophobic modified rutile titanium dioxide, and the amount of the pigment is 8-12 parts; The heat insulation filler is hollow glass beads with the use amount of 35-48 parts, the true density of the hollow glass beads is 0.15-0.35 g/cm 3 , and the compressive strength is not lower than 10MPa.
  3. 3. The inorganic decorative whole aggregate material according to claim 1, wherein in the crystallization active agent, the core is metakaolin with a specific surface area of not less than 15000m 2 /kg, and the nano nucleating agent in the shell is nano silicon dioxide; the mass ratio of the crystalline waterproof agent to the metakaolin is 1:3-6.
  4. 4. The inorganic decorative whole aggregate material according to claim 1, wherein the preparation method of the crystallization activator is as follows: (1) Mixing metakaolin at 200-300 rpm for mechanical activation; (2) Adding a silane coupling agent into metakaolin, and increasing the rotating speed to 600-800 rpm to obtain a mixed material; (3) The rotation speed is regulated to 400-500 rpm, nano silicon dioxide is sprayed into the mixed material, and then a crystalline waterproof agent is added for continuous mixing and coating; (4) Cooling and sieving.
  5. 5. The inorganic decorative whole aggregate material according to claim 1, wherein the composite cementitious material comprises portland cement, metakaolin, and granulated blast furnace slag powder; the compound alkali excitant comprises solid sodium silicate and carbonate.
  6. 6. A method for preparing an inorganic decorative whole aggregate material, which is characterized by being used for preparing the inorganic decorative whole aggregate material according to any one of claims 1-5, and comprising the following steps: S1, carrying out first mixing on the composite cementing material, the polymer rubber powder and the water-retaining agent to obtain a basic mixture; S2, carrying out second mixing on the functional composite filler and the basic mixture; and S3, carrying out third mixing on the composite alkali excitant, the hydrophobic water reducer, the core-shell structure crystallization active agent and the mixture treated in the step S2 to obtain the inorganic decoration whole aggregate material.
  7. 7. The method for preparing the inorganic decorative whole aggregate material according to claim 6, wherein the rotation speed of the first mixture is 400-500 rpm for 5-10 min, the rotation speed of the second mixture is 100-200 rpm for 8-12 min, and the rotation speed of the third mixture is 80-120 rpm for 3-8 min.
  8. 8. The use of the inorganic decorative whole aggregate material according to any one of claims 1 to 5, wherein the inorganic decorative whole aggregate material is used for preparing an integrated heat insulation and decoration system for an external wall of a building and/or an indoor decorative wall surface.
  9. 9. The application of the inorganic decorative whole aggregate material according to claim 8, wherein the inorganic decorative whole aggregate material is mixed with water according to a mass ratio of 1 (0.18-0.25) and stirred to form slurry.
  10. 10. The use of an inorganic decorative whole aggregate material according to claim 8, wherein the stirring comprises mixing at 200-400 rpm for 30-90 s, then dispersing at 800-1100 rpm for 90-180 s at high speed, and wherein the slurry is left to stand for curing for 5-20 min before application.

Description

Inorganic decorative whole aggregate material and preparation method and application thereof Technical Field The application relates to the technical field of building coatings, in particular to an inorganic decorative whole aggregate material and a preparation method and application thereof. Background The traditional technology of the exterior wall marble-like paint (aqueous multicolor) system generally comprises the steps of leveling and priming a putty layer, then constructing multicolor intermediate paint, and finally spraying aqueous multicolor dots. The following disadvantages often exist for this process: 1. As a base layer leveling and priming material, the quality of the putty is often neglected, resulting in various problems in the later stages of coating. The putty belongs to cement-based materials, has high rigidity, is easy to crack in the later period, and particularly under the condition of insufficient maintenance, powder falling, peeling, cracking, whiskering and the like often occur, so that the construction quality of a coating is seriously affected. 2. The middle coating adopted by the traditional stone-like paint system belongs to an emulsion-based system, and belongs to different systems with the putty layer (cement-based) of the base layer, so that the problem of poor interlayer adhesive force exists, particularly when the strength of the putty layer is poor, the problems of peeling off and edge lifting of the beautiful pattern paper, peeling, falling off and the like easily occur, and the quality of the later-stage coating is seriously affected. 3. The intermediate coating used in the conventional stone-like paint is basically free of texture due to a flat coating system, which causes 2 problems. Firstly, the smooth surface of the middle coating can reduce the adhesion of color points, later, the surface color points are easy to drop due to the environments such as rainwater, freezing and the like, secondly, the texture of a stone-like paint imitation system prepared by the middle coating of a flat coating system is poor, the fullness and the third dimension of a paint film are not enough, and the aesthetic degree of the coating can not meet the market demand. 4. The common stone-like paint system has thinner coating, poor impact resistance and damage resistance, is easy to expose the lower putty layer, causes uneven coating color and influences the overall beauty, and is difficult to repair in the later stage due to the different material systems of the middle coating and the putty layer. In addition, the damaged paint film can cause the problems of peeling, cracking, falling off and the like of the peripheral coating due to infiltration of late rainwater. Therefore, the invention provides the inorganic decorative whole aggregate material with complementary and synergistic performances, aiming at the problems of performance degradation caused by microcracks generated in long-term use and difficult repair of the existing materials. Disclosure of Invention The present application has been made in view of the above-described problems, and an object thereof is to provide an inorganic ornamental whole aggregate material, and a preparation method and application thereof. The application particularly provides an inorganic decorative whole aggregate material, which comprises the following components in parts by mass: 35-50 parts of composite cementing material, 3-7 parts of composite alkali activator, 45-60 parts of functional composite filler, 2-6 parts of crystallization activator, 1.5-4.0 parts of polymer rubber powder, 0.5-1.5 parts of hydrophobic water reducer and 0.1-0.5 part of water-retaining agent; the functional composite filler comprises pigment and heat insulation filler, and the crystallization active agent comprises a composite structure taking metakaolin as a core and taking a crystallization type waterproof agent and a nano nucleating agent as a shell. Further, the pigment in the functional composite filler is hydrophobic modified rutile titanium dioxide with the dosage of 8-12 parts, the heat insulation filler is hollow glass beads with the dosage of 35-48 parts, the true density of the hollow glass beads is 0.15-0.35 g/cm 3, and the compressive strength is not lower than 10MPa. Further, in the crystallization active agent, the core is metakaolin with a specific surface area not smaller than 15000m 2/kg, the nano nucleating agent in the shell is nano silicon dioxide, and the mass ratio of the crystallization waterproof agent to the metakaolin is 1:3-6. Further, the preparation method of the crystallization active agent comprises the following steps: (1) Mixing metakaolin at 200-300 rpm for mechanical activation; (2) Adding a silane coupling agent into metakaolin, and increasing the rotating speed to 600-800 rpm to obtain a mixed material; (3) The rotation speed is regulated to 400-500 rpm, nano silicon dioxide is sprayed into the mixed material, and then a crystalline wate