阅读说明：本技术 一种外墙用多孔耐侯耐磨隔音涂料的制造方法 (Method for manufacturing porous weather-resistant wear-resistant sound-insulation coating for outer wall ) 是由 张敬敏 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种外墙用多孔耐侯耐磨隔音涂料及其制造方法,该外墙用多孔耐侯耐磨隔音涂料由三层结构组成,底层为蒙脱石、高岭土按质量比(3-3.5)：(8-10)配比后混合网格状炭化纤维在电热脉冲下构成的深入墙体水泥的陶质结构；中层为二氧化硅微粉、锆英石粉、金红石粉、蒙脱石、高岭土按质量比(5-6)：(0.2-0.3)：(0.1-0.2)：(21-24.5)：(56-70)混合后经电热脉冲处理获得的类莫来石多孔陶质结构；表层为硅胶膜。本发明高耐水、吸音系数高、高耐侯、自成孔、环保无公害、墙面结合力好。(The invention discloses a porous weather-resistant wear-resistant sound-insulation coating for an external wall and a manufacturing method thereof, the porous weather-resistant wear-resistant sound-insulation coating for the external wall is composed of a three-layer structure, wherein the bottom layer is composed of montmorillonite and kaolin according to the mass ratio (3-3.5): (8-10) mixing the mixture according to the proportion, and forming a ceramic structure which is deep into wall cement by mixing the latticed carbonized fibers under an electric heating pulse; the middle layer is composed of silicon dioxide micropowder, zircon powder, rutile powder, montmorillonite and kaolin according to the mass ratio (5-6): (0.2-0.3): (0.1-0.2): (21-24.5): (56-70) mixing, and then carrying out electrothermal pulse treatment to obtain a mullite-like porous ceramic structure; the surface layer is a silica gel film. The invention has high water resistance, high sound absorption coefficient, high weather resistance, self-pore forming, environmental protection, no pollution and good wall surface bonding force.)

1. A method for manufacturing a porous weather-resistant wear-resistant sound-insulation coating for an external wall is characterized by comprising the following steps;

1) raw material preparation

① preparation of raw material, the preparation contains root-canal algae spore with concentration of 1 × 10⁶cfu/ml-1×10⁸Enough seawater of cfu/ml, 5-6 parts of silicon dioxide micro powder, 30-35 parts of montmorillonite, 80-100 parts of kaolin, 3-5 parts of aluminum wire with the diameter of 0.1-0.5 mm, 0.2-0.3 part of zircon powder, 0.1-0.2 part of rutile powder, 20-25 parts of polyvinyl alcohol aqueous solution with the concentration of 2 percent and 15-18 parts of saturated silicic acid sol;

② preparing adjuvants by preparing water;

2) primer coating

① uniformly mixing montmorillonite and kaolin prepared in step ① of stage 1), adding all polyvinyl alcohol aqueous solution, and uniformly stirring at 52-55 ℃ to obtain damp and hot clay;

②, separating the wet and hot clay obtained in the step ① according to the mass ratio of 7: 3, selecting a part accounting for 30 percent of the wet and hot clay, uniformly coating the part on the wall surface of an outer wall, and obtaining a primer when the coating thickness is 0.5mm-1 mm;

③ standing the bottom coating for 1-2 daysUntil the coating is solidified and has sparse pores and cracks, and then the coating surface is uniformly sprayed with the root-containing alga spores with the concentration of 1 multiplied by 10 prepared in step ①⁶cfu/ml-1×10⁸The water content of the primer coating is increased to 30% -40% by cfu/ml seawater, then water is continuously sprayed to keep the humidity until the primer coating and the surface of the wall in the crack are completely covered to grow compact brown fur, and the primer coating to be treated is obtained;

④ baking the paint with naked fire until the paint is dried and charred to obtain the needed bottom paint;

3) surface coating

① spreading the aluminum wires prepared in step ① of stage 1) on the surface of the bottom coating at a grid interval of 1-5 cm to obtain a grid substrate;

② uniformly mixing the silica micropowder prepared in step ① in stage 1), zircon powder and rutile powder, and then mixing with the residual 70% of moist heat clay obtained in step ② in stage 2) and uniformly stirring to obtain functional stone powder;

③, blending the functional stone powder obtained in the step ② and proper amount of water prepared in the step ② in the step 1) into paste with the humidity of 30-35%, uniformly coating the paste on the surface of the grid base material obtained in the step ①, and uniformly spraying the silicic acid sol prepared in the step ① in the step 1) outside the coating to obtain a coating to be treated;

4) shaping of paints

① respectively applying the three-phase electrodes of a 380V three-phase power supply to the two corners at the top and the middle position at the bottom of the coating to be treated obtained in the stage 3), and keeping for 2h-3h to obtain the required porous weather-resistant wear-resistant sound-insulating coating for the outer wall.

2. The porous weather-resistant wear-resistant sound-insulation coating for the outer wall is characterized by comprising the following components in parts by weight: the porous weather-resistant wear-resistant sound-insulation coating for the outer wall is composed of a three-layer structure, wherein the bottom layer is composed of montmorillonite and kaolin according to the mass ratio (3-3.5): (8-10) mixing the mixture according to the proportion, and forming a ceramic structure which is deep into wall cement by mixing the latticed carbonized fibers under an electric heating pulse; the middle layer is composed of silicon dioxide micropowder, zircon powder, rutile powder, montmorillonite and kaolin according to the mass ratio (5-6): (0.2-0.3): (0.1-0.2): (21-24.5): (56-70) mixing, and then carrying out electrothermal pulse treatment to obtain a mullite-like porous ceramic structure; the surface layer is a silica gel film.

Technical Field

The invention relates to the technical field of environment-friendly coatings, in particular to a method for manufacturing a porous weather-resistant wear-resistant sound-insulation coating for an external wall.

Background

Disclosure of Invention

The invention aims to provide a method for preparing a porous weather-resistant wear-resistant sound-insulating coating for an external wall, which has high water resistance, high sound absorption coefficient, high weather resistance, self-pore formation, environmental protection, no pollution and good wall surface binding force.

In order to achieve the purpose, the invention adopts the following technical scheme: a method for preparing porous weather-resistant wear-resistant sound-insulating coating for exterior walls comprises the following steps;

1) raw material preparation

① preparation of raw material, the preparation contains root-canal algae spore with concentration of 1 × 10⁶cfu/ml-1×10⁸Enough seawater of cfu/ml, 5-6 parts of silicon dioxide micro powder, 30-35 parts of montmorillonite, 80-100 parts of kaolin, 3-5 parts of aluminum wire with the diameter of 0.1-0.5 mm, 0.2-0.3 part of zircon powder, 0.1-0.2 part of rutile powder, 20-25 parts of polyvinyl alcohol aqueous solution with the concentration of 2% and 15-18 parts of silicic acid sol;

② preparing adjuvants by preparing water;

2) primer coating

① uniformly mixing montmorillonite and kaolin prepared in step ① of stage 1), adding all polyvinyl alcohol aqueous solution, and uniformly stirring at 52-55 ℃ to obtain damp and hot clay;

②, separating the wet and hot clay obtained in the step ① according to the mass ratio of 7: 3, selecting a part accounting for 30 percent of the wet and hot clay, uniformly coating the part on the wall surface of an outer wall, and obtaining a primer when the coating thickness is 0.5mm-1 mm;

③ standing the bottom layer paint for 1-2 days until the paint is solidified and has sparse pores and cracks, and then uniformly spraying on the surface of the paint at stage 1) ① to prepare a coating containing the root-canker spores with the concentration of 1 × 10⁶cfu/ml-1×10⁸The water content of the primer coating is increased to 30% -40% by cfu/ml seawater, then water is continuously sprayed to keep the humidity until the primer coating and the surface of the wall in the crack are completely covered to grow compact brown fur, and the primer coating to be treated is obtained;

④ baking the paint with naked fire until the paint is dried and charred to obtain the needed bottom paint;

3) surface coating

① spreading the aluminum wires prepared in step ① of stage 1) on the surface of the bottom coating at a grid interval of 1-5 cm to obtain a grid substrate;

② uniformly mixing the silica micropowder prepared in step ① in stage 1), zircon powder and rutile powder, and then mixing with the residual 70% of moist heat clay obtained in step ② in stage 2) and uniformly stirring to obtain functional stone powder;

③, blending the functional stone powder obtained in the step ② and proper amount of water prepared in the step ② in the step 1) into paste with the humidity of 30-35%, uniformly coating the paste on the surface of the grid base material obtained in the step ①, and uniformly spraying the silicic acid sol prepared in the step ① in the step 1) outside the coating to obtain a coating to be treated;

4) shaping of paints

① respectively applying the three-phase electrodes of a 380V three-phase power supply to the two corners at the top and the middle position at the bottom of the coating to be treated obtained in the stage 3), and keeping for 2h-3h to obtain the required porous weather-resistant wear-resistant sound-insulating coating for the outer wall.

A porous weather-resistant wear-resistant sound-insulation coating for an external wall is composed of a three-layer structure, wherein the bottom layer is composed of montmorillonite and kaolin according to the mass ratio (3-3.5): (8-10) mixing the mixture according to the proportion, and forming a ceramic structure which is deep into wall cement by mixing the latticed carbonized fibers under an electric heating pulse; the middle layer is composed of silicon dioxide micropowder, zircon powder, rutile powder, montmorillonite and kaolin according to the mass ratio (5-6): (0.2-0.3): (0.1-0.2): (21-24.5): (56-70) mixing, and then carrying out electrothermal pulse treatment to obtain a mullite-like porous ceramic structure; the surface layer is a silica gel film.

Compared with the prior art, the invention has the following advantages: (1) all the components of the invention are respectively a ceramic structure, a carbonized structure and colloidal silicon, which are inorganic materials, and the paint has good weather resistance, acid resistance, alkali resistance and water resistance, and is stronger than the organic paint in the prior art. (2) The integral thickness of the wall surface is not more than 3mm, and the bonding force of the wall surface is good because the carbonized fiber obtained by high-temperature carbonization after diatom grows deep into the wall surface is utilized to increase the bonding force. (3) The sound absorption coefficient is 0.5-0.7, and the sound absorption performance is excellent. (4) The ceramic sparse pore structure, the built-in carbonized fiber, the aluminum wire subjected to micro-arc oxidation on the surface and the filled silica gel film jointly construct the integral coating performance with good self-bonding force and high wear resistance. (5) The process is environment-friendly, the human body is harmless, even a small amount of glue (polyvinyl alcohol aqueous solution) is only used as the initial seasoning, the glue is denatured and oxidized under the action of high temperature and electric heat, and the glue is nontoxic and volatile. (6) The whole wall body is a conductor, can play a role of electromagnetic shielding, and in addition, the material is waterproof in nature, and has good protection performance in areas with large moisture and more thunderstorm days (such as Guangdong province). Therefore, the invention has the characteristics of high water resistance, high sound absorption coefficient, high weather resistance, self-pore forming, environmental protection, no pollution and good wall surface bonding force.

Detailed Description