Preparation method, fabric and application of cloth-textured finishing fabric for concrete surface

By preparing microcapsule fabrics on the concrete surface, and reacting etching components and microcapsules in an alkaline environment to generate dense crystals, the problems of poor durability and difficult operation of concrete surface patterning technology are solved, and diversified decorative effects are achieved.

CN116856175BActive Publication Date: 2025-08-12WUHAN TEXTILE UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310633803.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2025-08-12
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

The existing concrete surface patterning technology has problems such as poor durability, high operation difficulty and single effect, which is difficult to meet the diverse and personalized decoration needs.

Method used

After using long fibers to impregnate the etching component solution, the capsule core particles are prepared and the capsule wall material is wrapped to form microcapsules, and the fiber is loaded to woven into fabrics. The fabric texture is formed by contacting the concrete. The etching components and microcapsules react in an alkaline environment to generate dense crystals to enhance surface hardness and pattern diversity.

Benefits of technology

The concrete surface decoration effect with strong durability, low operation difficulty and diverse patterns is achieved, which enhances the hardness and compactness of the concrete surface, reduces the operation difficulty and improves the decorativeness and durability of the pattern.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116856175B_ABST
    Figure CN116856175B_ABST
Patent Text Reader

Abstract

A method for preparing a fabric with a cloth-like texture for a concrete surface finish comprises: first, impregnating long fibers in an etching component solution and drying to obtain etched fibers; then, forming core particles with a core material; then, wrapping the core particles with a capsule wall material to obtain microcapsules; and then, loading the microcapsules onto the long fibers to obtain capsule fibers. The etched fibers and capsule fibers are then woven into a fabric with a specific texture using a known textile process. During application, one side of the fabric is first brought into contact with the surface of fresh concrete. The alkalinity of the concrete slurry destroys the microcapsule wall material, allowing the core material components in the microcapsules to penetrate the concrete surface. After the concrete has fully set, the fabric is removed, and the concrete surface in contact with the fabric is rinsed with a high-pressure water jet to remove any unset cement slurry due to the etching component, thereby forming a cloth-like texture pattern on the concrete surface. This design simultaneously achieves the advantages of high durability and low operational difficulty.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to a concrete material surface patterning technology, belongs to the field of concrete surface patterning, and in particular to a preparation method, fabric and application of a concrete surface cloth-textured finishing fabric. Background Art

[0002] Concrete is a common building material, widely used in construction, roads, bridges, tunnels, and other engineering fields. However, traditional concrete surfaces are often monotonous, lacking decorativeness and artistic appeal. To meet the demand for decorative building material surfaces, various concrete surface patterning technologies have gradually developed.

[0003] At present, concrete surface patterning technologies mainly include the following:

[0004] Electrochemical etching technology: This technology uses chemical solutions and electrochemical reactions to form patterns on the concrete surface. Electrochemical etching technology can achieve different surface effects by controlling parameters such as solution concentration, temperature, and current density;

[0005] Spraying technology: This technology involves spraying pigments or texture materials onto the concrete surface to create a pattern. Spraying technology can achieve more complex pattern effects, but its durability is poor and it is easily affected by the external environment.

[0006] Film technology: This technology involves sticking special films on the concrete surface to create different pattern effects. Film technology can achieve a variety of complex pattern effects, but the durability of the film is also poor and is easily affected by the external environment;

[0007] Engraving: This technique involves carving patterns onto the concrete surface through mechanical or manual engraving. Engraving can create very detailed patterns, but the process is complex and expensive.

[0008] As can be seen from the above, although the existing concrete material surface patterning technology can achieve a certain degree of decorative effect, it still has the following three defects:

[0009] Durability issues: Current concrete surface patterning technologies, such as spraying and film application, have poor durability of pigments and film materials. They are easily affected by external environmental factors such as oxidation, ultraviolet rays, and pollution, causing the color and pattern to lose their aesthetic appeal.

[0010] Difficulty in operation: Engraving technology requires professional skills and equipment, is difficult to construct, and is costly. It is also not suitable for large-scale construction. Although electrochemical etching technology can produce various complex surface effects, it requires high control technology for chemical solutions and is difficult to operate.

[0011] Single effect: The current concrete surface patterning technology has a relatively single effect and can only achieve limited changes in texture, pattern and color. However, it is difficult for current technology to meet the needs of more diversified and personalized designs.

[0012] The information disclosed in this background technology section is only intended to increase understanding of the overall background of the application and should not be considered as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the Invention

[0013] The purpose of the present invention is to overcome the defects and problems of the prior art that cannot simultaneously achieve high durability, low difficulty in operation and diversified patterns, and to provide a preparation method, fabric and application of a concrete surface cloth-textured finishing fabric that can simultaneously achieve high durability, low difficulty in operation and diversified patterns.

[0014] To achieve the above objectives, the technical solution of the present invention is: a method for preparing a cloth-textured finishing fabric on a concrete surface, the preparation method comprising the following steps:

[0015] Step 1: First, immerse the long fiber in the etching component solution, then take out the long fiber and dry it to obtain the etched fiber; the solvent of the etching component solution is water, the mass ratio of the solute to the water is 0.1%-1.0%, and the solute is any one of the following or any mixture:

[0016] A solute: organic matter containing hydroxyl groups;

[0017] B solute: sugar polyol derivatives;

[0018] C solute: phosphate;

[0019] Step 2: First, the three substances A, B, and C are evenly mixed to obtain a mixture, and then water is added according to 30%-50% of the mass of the mixture, and mixed to obtain a capsule core material, and then the capsule core material is made into capsule core particles, and then the capsule wall material is wrapped on the outside of the capsule core particles to obtain a blank capsule, and the capsule wall material is dissolved in an environment of pH ≥ 11, and then the blank capsule is air-dried to obtain microcapsules dispersed with each other;

[0020] The substance A is any one of sodium silicate, aluminum oxide, potassium silicate, calcium silicate, and calcium aluminum silicate, or any combination thereof; the substance B is any one of microcrystalline cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, methylcellulose, hydroxypropyl cellulose, ethyl cellulose, and corn starch, or any combination thereof; and the substance C is any one of Tween 80, Triton X-100, Brij 35, NP-40, and CHAPS, or any combination thereof;

[0021] Step 3: First, the microcapsules are loaded on the long fibers through a binder to obtain capsule fibers, and then the etched fibers and capsule fibers are woven into a fabric according to a specific texture through a known textile process. The mass ratio of the etched fibers to the capsule fibers is 1-6:4-9. The fabric is the concrete surface cloth texture finishing fabric.

[0022] In the first step:

[0023] When solute A is used, the mass ratio of solute to water is 0.1%-0.3%;

[0024] When solute B is used, the mass ratio of solute to water is 0.3%-1.0%;

[0025] When using C solute, the mass ratio of solute to water is 0.1%-0.5%.

[0026] In the second step, the weight ratio of the three substances A, B and C is: 31-43:15-25:3-5.

[0027] In the second step, making the core material into core particles means that the core material is made into core particles by extrusion and spheronization.

[0028] In the second step, wrapping the capsule wall material on the outside of the capsule core particle means: wrapping the capsule wall material on the outside of the capsule core particle by spraying;

[0029] The capsule wall material is a solution, and the solute is any one of polyurethane, gelatin, hydroxypropyl methylcellulose, and polyvinyl alcohol, or any mixture thereof.

[0030] In the second step, microcapsules dispersed with each other are first obtained, and then microcapsules with a particle size of 250µm-1000µm are screened out to serve as microcapsules used for loading in the third step.

[0031] A fabric is produced by the above-mentioned method for preparing a concrete surface cloth-textured finishing fabric, namely, a concrete surface cloth-textured finishing fabric.

[0032] An application of a fabric, wherein the fabric is one of the above-mentioned fabrics, and the application comprises any one of the following methods:

[0033] Method 1: First, pour fresh concrete into the mold, then cover the concrete surface with one side of the fabric so that the slurry in the concrete contacts the etching components and microcapsules on the fabric. After the concrete has finally set, remove the fabric and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components. This will form a cloth-like texture pattern on the concrete surface.

[0034] Method 2: First, lay the fabric flat and fix it on the inner surface of the mold, and then pour fresh concrete into the mold. After pouring, the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric. After the concrete has finally set, remove the template that constitutes the mold, then peel off the fabric, and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components, and a cloth texture pattern can be formed on the concrete surface.

[0035] In the first method, after the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric, a NaOH solution with a pH ≥ 11 is evenly sprayed on the fabric surface, and then the concrete is allowed to finally set;

[0036] In the second method, after the fabric is laid flat and fixed on the inner surface of the mold, a NaOH solution with a pH of ≥11 is evenly sprayed on the surface of the fabric, and then fresh concrete is poured into the mold.

[0037] The time for removing the fabric is 1 to 12 hours after the final setting of the concrete and before the retarding effect of the etching component fails.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The present invention relates to a preparation method, fabric and application of a cloth-textured finishing fabric for a concrete surface. First, long fibers are immersed in an etching component solution and dried to obtain etched fibers. Then, a capsule core material is made into capsule core particles. Then, a capsule wall material is wrapped around the outside of the capsule core particles to obtain blank capsules. Then, the blank capsules are blown-dried to obtain microcapsules dispersed from each other. Then, the microcapsules are loaded on long fibers (new long fibers, not etched fibers) via a binder to obtain capsule fibers. Then, the etched fibers and capsule fibers are woven into a fabric according to a specific texture using a known textile process. During application, one side of the fabric is first brought into contact with the surface of fresh concrete, and the etching components and microcapsules loaded on the fabric come into contact with the concrete. Subsequently, the etching components penetrate into the surface of the concrete and delay the hydration reaction of the cement on the surface (the etching components have a delaying effect on the hydration reaction of cement binder materials, which can extend the final setting time of concrete by 2-24 hours), and form a granular, frosted surface on the surface of the concrete; at the same time, the capsule wall material of the microcapsule dissolves and breaks under the action of alkali in the concrete slurry, allowing the capsule core material components to contact and penetrate into the concrete, and the capsule core material components undergo an infiltration crystallization reaction with the binder material, that is, the chemical components in the capsule core material enter the surface of the concrete and react with the free calcium ions and water molecules in the concrete, thereby forming a dense crystalline surface structure on the concrete surface, thereby enhancing the hardness, density and durability of the concrete surface. As can be seen from the entire reaction process, not only are the operating tools simple and easy to obtain, the labor intensity is low, and the operational difficulty is reduced, but also, during the weaving process using known textile processes, specific textures can be produced, with diverse patterns, which can achieve more diverse, personalized, and three-dimensional surface pattern design requirements. In addition, the hydration delay reaction and the osmotic crystallization reaction have a good synergistic effect. The hydration delay reaction provides sufficient reaction time and reaction basis for the osmotic crystallization reaction, which is conducive to improving the formation effect of crystals. The osmotic crystallization reaction can increase the strength and density of the frosted surface, thereby improving the decorativeness and durability of the pattern formed on the concrete surface. Therefore, the present invention can simultaneously achieve the advantages of strong durability, low operational difficulty, and diverse patterns.

[0040] 2. In the present invention's method for preparing a fabric for a concrete surface with a textured finish, the fabric, and its applications, the solute in the etching component solution is any one of solute A, solute B, and solute C. This technical feature not only provides a wide range of options to meet diverse application requirements, but also allows for greater adjustability. For example, the application effect and application amount of each solute can be varied, resulting in a richer patterning effect. Therefore, the present invention not only has a wide range of applications but also has greater design flexibility.

[0041] 3. In the present invention, a method for preparing a fabric for a concrete surface with a textured finish, the fabric, and its application, the capsule wall material dissolves in an environment with a pH of 11 or higher. This design allows the capsule wall to gradually rupture in an alkaline environment after the microcapsules come into contact with concrete, allowing the core particles inside the capsules to come into contact with the concrete for a penetrating crystallization reaction. This process requires no external force and is very convenient to operate. Therefore, the present invention is highly user-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the fabric texture pattern formed on the concrete surface by the fabric in the present invention.

[0043] Figure 2 Schematic diagram of the structure of the microcapsule of the present invention. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] See also Figure 1 and Figure 2 A method for preparing a cloth-textured finishing fabric on a concrete surface, the method comprising the following steps:

[0046] Step 1: First, immerse the long fiber in the etching component solution, then take out the long fiber and dry it to obtain the etched fiber; the solvent of the etching component solution is water, the mass ratio of the solute to the water is 0.1%-1.0%, and the solute is any one of the following or any mixture:

[0047] A solute: organic matter containing hydroxyl groups;

[0048] B solute: sugar polyol derivatives;

[0049] C solute: phosphate;

[0050] Step 2: First, the three substances A, B, and C are evenly mixed to obtain a mixture, and then water is added according to 30%-50% of the mass of the mixture, and mixed to obtain a capsule core material, and then the capsule core material is made into capsule core particles, and then the capsule wall material is wrapped on the outside of the capsule core particles to obtain a blank capsule, and the capsule wall material is dissolved in an environment of pH ≥ 11, and then the blank capsule is air-dried to obtain microcapsules dispersed with each other;

[0051] The substance A is any one of sodium silicate, aluminum oxide, potassium silicate, calcium silicate, and calcium aluminum silicate, or any combination thereof; the substance B is any one of microcrystalline cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, methylcellulose, hydroxypropyl cellulose, ethyl cellulose, and corn starch, or any combination thereof; and the substance C is any one of Tween 80, Triton X-100, Brij 35, NP-40, and CHAPS, or any combination thereof;

[0052] Step 3: First, the microcapsules are loaded on the long fibers through a binder to obtain capsule fibers, and then the etched fibers and capsule fibers are woven into a fabric according to a specific texture through a known textile process. The mass ratio of the etched fibers to the capsule fibers is 1-6:4-9. The fabric is the concrete surface cloth texture finishing fabric.

[0053] In the first step:

[0054] When solute A is used, the mass ratio of solute to water is 0.1%-0.3%;

[0055] When solute B is used, the mass ratio of solute to water is 0.3%-1.0%;

[0056] When using C solute, the mass ratio of solute to water is 0.1%-0.5%.

[0057] In the second step, the weight ratio of the three substances A, B and C is: 31-43:15-25:3-5.

[0058] In the second step, making the core material into core particles means that the core material is made into core particles by extrusion and spheronization.

[0059] In the second step, wrapping the capsule wall material on the outside of the capsule core particle means: wrapping the capsule wall material on the outside of the capsule core particle by spraying;

[0060] The capsule wall material is a solution, and the solute is any one of polyurethane, gelatin, hydroxypropyl methylcellulose, and polyvinyl alcohol, or any mixture thereof.

[0061] In the second step, microcapsules dispersed with each other are first obtained, and then microcapsules with a particle size of 250µm-1000µm are screened out to serve as microcapsules used for loading in the third step.

[0062] A fabric is produced by the above-mentioned method for preparing a concrete surface cloth-textured finishing fabric, namely, a concrete surface cloth-textured finishing fabric.

[0063] An application of a fabric, wherein the fabric is one of the above-mentioned fabrics, and the application comprises any one of the following methods:

[0064] Method 1: First, pour fresh concrete into the mold, then cover the concrete surface with one side of the fabric so that the slurry in the concrete contacts the etching components and microcapsules on the fabric. After the concrete has finally set, remove the fabric and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components. This will form a cloth-like texture pattern on the concrete surface.

[0065] Method 2: First, lay the fabric flat and fix it on the inner surface of the mold, and then pour fresh concrete into the mold. After pouring, the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric. After the concrete has finally set, remove the template that constitutes the mold, then peel off the fabric, and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components, and a cloth texture pattern can be formed on the concrete surface.

[0066] In the first method, after the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric, a NaOH solution with a pH ≥ 11 is evenly sprayed on the fabric surface, and then the concrete is allowed to finally set;

[0067] In the second method, after the fabric is laid flat and fixed on the inner surface of the mold, a NaOH solution with a pH of ≥11 is evenly sprayed on the surface of the fabric, and then fresh concrete is poured into the mold.

[0068] The time for removing the fabric is 1 to 12 hours after the final setting of the concrete and before the retarding effect of the etching component fails.

[0069] The principle of the present invention is described as follows:

[0070] The third step of the production method of the present invention states that "microcapsules are first loaded onto long fibers via a binder to obtain capsule fibers." The long fibers here are new long fibers, not the same long fibers used in the first step to produce the etched fibers.

[0071] The concrete used in the present invention is a slurry that is viscous and movable.

[0072] Triton X-100 in the present invention is similar to Tween-80 and is also a non-ionic surfactant, usually used as a cell membrane dissociator and protein dissociator. In the present design, it is used as a dispersant to prepare microcapsules to improve dispersibility and stability.

[0073] The Brij 35 in the present invention is a nonionic surfactant, which is commonly used to dissolve hydrophobic substances such as proteins and cholesterol.

[0074] NP-40 in the present invention, also known as Octylphenol polyglycol ether, is a non-ionic surfactant, which is generally used for the dissociation of cell membranes and the extraction of intracellular components.

[0075] The CHAPS in the present invention is an ionic surfactant that can be used to solubilize membrane proteins and water-soluble proteins, and is also known as 3-[(3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate.

[0076] Example 1:

[0077] See also Figure 1 and Figure 2 A method for preparing a cloth-textured finishing fabric on a concrete surface, the method comprising the following steps:

[0078] Step 1: First, immerse the long fiber in the etching component solution for 1-2 hours, then take out the long fiber and dry it to obtain the etched fiber; the solvent of the etching component solution is water, the mass ratio of the solute to the water is 0.1%-1.0%, and the solute is any one of the following or any mixture:

[0079] A solute: organic matter containing hydroxyl groups;

[0080] B solute: sugar polyol derivatives;

[0081] C solute: phosphate;

[0082] Step 2: First, the three substances A, B, and C are evenly mixed to obtain a mixture, wherein the weight ratio of the three substances A, B, and C is: 31-43:15-25:3-5, and then water is added according to 30%-50% of the mass of the mixture, and mixed to obtain a capsule core material, and then the capsule core material is made into capsule core particles, and then the capsule wall material is wrapped on the outside of the capsule core particles to obtain a blank capsule, and the capsule wall material is dissolved in an environment of pH ≥ 11, and then the blank capsule is air-dried to obtain microcapsules dispersed with each other (such as Figure 2 As shown); the substance A is any one of sodium silicate, aluminum oxide, potassium silicate, calcium silicate, and calcium aluminum silicate, or any combination thereof; the substance B is any one of microcrystalline cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, methylcellulose, hydroxypropyl cellulose, ethyl cellulose, and corn starch, or any combination thereof; and the substance C is any one of Tween 80, Triton X-100, Brij 35, NP-40, and CHAPS, or any combination thereof;

[0083] Step 3: First, the microcapsules are loaded on the long fibers through a binder to obtain capsule fibers, and then the etched fibers and capsule fibers are woven into a fabric according to a specific texture through a known textile process. The mass ratio of the etched fibers to the capsule fibers is 1-6:4-9. The fabric is the concrete surface cloth texture finishing fabric.

[0084] Example 2:

[0085] The basic content is the same as Example 1, except that:

[0086] In the first step:

[0087] When solute A is used, the mass ratio of solute to water is 0.1%-0.3%;

[0088] When solute B is used, the mass ratio of solute to water is 0.3%-1.0%;

[0089] When using C solute, the mass ratio of solute to water is 0.1%-0.5%.

[0090] Example 3:

[0091] The basic content is the same as Example 1, except that:

[0092] In the second step, the mass ratios of the three substances A, B and C and their mutual ratios are as follows: sodium silicate accounts for 35%, microcrystalline cellulose accounts for 22%, and Tween 80 accounts for 4%.

[0093] Example 4:

[0094] The basic content is the same as Example 1, except that:

[0095] A fabric is produced by the above-mentioned method for preparing a concrete surface cloth-textured finishing fabric, namely, a concrete surface cloth-textured finishing fabric.

[0096] Example 5:

[0097] The basic content is the same as Example 4, except that:

[0098] An application of a fabric, wherein the fabric is one of the above-mentioned fabrics, and the application comprises any one of the following methods:

[0099] Method 1: First, pour fresh concrete into the mold, then cover the concrete surface with one side of the fabric so that the slurry in the concrete contacts the etching components and microcapsules on the fabric. After the concrete has finally set, remove the fabric and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components. This will form a cloth-like texture pattern on the concrete surface.

[0100] Method 2: First, lay the fabric flat and fix it on the inner surface of the mold, and then pour fresh concrete into the mold. After pouring, the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric. After the concrete has finally set, remove the template that constitutes the mold, then peel off the fabric, and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components, and a cloth texture pattern can be formed on the concrete surface.

[0101] The above-mentioned cloth texture pattern, such as Figure 1 shown.

[0102] Example 6:

[0103] The basic content is the same as Example 5, except that:

[0104] In the first method, after the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric, a NaOH solution with a pH ≥ 11 is evenly sprayed on the fabric surface, and then the concrete is allowed to finally set;

[0105] In the second method, after the fabric is laid flat and fixed on the inner surface of the mold, a NaOH solution with a pH of ≥11 is evenly sprayed on the surface of the fabric, and then fresh concrete is poured into the mold.

[0106] When applied, spraying NaOH solution can accelerate the destruction rate of the capsule wall material and shorten the reaction time.

[0107] Example 7:

[0108] The basic content is the same as Example 5, except that:

[0109] A fabric application, after the concrete comes into contact with the etching components and microcapsules on the fabric, can also apply external force to the fabric to destroy the capsule wall material of the microcapsule through physical force, so that the capsule core particles in the microcapsule come into contact with the concrete. At this time, physical destruction together with alkaline destruction can accelerate the reaction speed.

[0110] Example 8:

[0111] The basic content is the same as Example 1, except that:

[0112] The method for preparing the etching component solution in the first step is: first fill about 2 / 3 of the container (glass or stainless steel container to avoid the possibility of reaction with hydroxyethyl cellulose) with clean water, the water temperature should generally be between 5°C and 50°C, and warm water can accelerate the dissolution of hydroxyethyl cellulose, then slowly add hydroxyethyl cellulose powder to the water, and gradually add and stir thoroughly until the hydroxyethyl cellulose is completely dissolved, then continue to stir the hydroxyethyl cellulose solution until it is uniform, ensuring that no particles and lumps remain, then check the concentration of the hydroxyethyl cellulose solution, and add water or hydroxyethyl cellulose powder according to actual needs to adjust until the desired concentration is reached (the mass ratio of solute to water is 0.15%) to obtain the etching component solution, and then store the etching component solution in a clean, sealed container and store it in a dry, cool place, avoiding exposure to direct sunlight, until it is used for subsequent impregnation of long fibers.

[0113] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A method for preparing a cloth-textured finishing fabric for a concrete surface, characterized by: The preparation method comprises the following steps: Step 1: First, immerse the long fiber in the etching component solution, then take out the long fiber and dry it to obtain the etched fiber; the solvent of the etching component solution is water, the mass ratio of the solute to the water is 0.1%-1.0%, and the solute is any one of the following or any mixture: A solute: organic matter containing hydroxyl groups; B solute: sugar polyol derivatives; C solute: phosphate; Step 2: First, the three substances A, B, and C are evenly mixed to obtain a mixture, and then water is added according to 30%-50% of the mass of the mixture, and mixed to obtain a capsule core material, and then the capsule core material is made into capsule core particles, and then the capsule wall material is wrapped on the outside of the capsule core particles to obtain a blank capsule, and the capsule wall material is dissolved in an environment of pH ≥ 11, and then the blank capsule is air-dried to obtain microcapsules dispersed with each other; The substance A is any one of sodium silicate, aluminum oxide, potassium silicate, calcium silicate, and calcium aluminum silicate, or any combination thereof; the substance B is any one of microcrystalline cellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol, methylcellulose, hydroxypropyl cellulose, ethyl cellulose, and corn starch, or any combination thereof; and the substance C is any one of Tween 80, Triton X-100, Brij 35, and NP-40, or any combination thereof; Step 3: First, the microcapsules are loaded on the long fibers through a binder to obtain capsule fibers, and then the etched fibers and capsule fibers are woven into a fabric according to a specific texture through a known textile process. The mass ratio of the etched fibers to the capsule fibers is 1-6:4-9. The fabric is the concrete surface cloth texture finishing fabric.

2. The method for preparing a concrete surface textured fabric according to claim 1, characterized in that: In the first step: When solute A is used, the mass ratio of solute to water is 0.1%-0.3%; When solute B is used, the mass ratio of solute to water is 0.3%-1.0%; When using C solute, the mass ratio of solute to water is 0.1%-0.5%.

3. The method for preparing a concrete surface cloth-textured finishing fabric according to claim 1 or 2, characterized in that: In the second step, the weight ratio of the three substances A, B and C is: 31-43:15-25:3-5.

4. The method for preparing a concrete surface cloth-textured finishing fabric according to claim 1 or 2, characterized in that: In the second step, making the core material into core particles means that the core material is made into core particles by extrusion and spheronization.

5. The method for preparing a concrete surface cloth-textured finishing fabric according to claim 1 or 2, characterized in that: In the second step, wrapping the capsule wall material on the outside of the capsule core particle means: wrapping the capsule wall material on the outside of the capsule core particle by spraying; The capsule wall material is a solution, and the solute is any one of polyurethane, gelatin, hydroxypropyl methylcellulose, and polyvinyl alcohol, or any mixture thereof.

6. The method for preparing a concrete surface cloth-textured finishing fabric according to claim 1 or 2, characterized in that: In the second step, microcapsules dispersed with each other are first obtained, and then microcapsules with a particle size of 250µm-1000µm are screened out to serve as microcapsules used for loading in the third step.

7. A fabric, characterized in that: The fabric is a fabric produced by the method for preparing a concrete surface cloth-textured finishing fabric according to claim 1, that is, a concrete surface cloth-textured finishing fabric.

8. An application of a fabric, characterized in that: The fabric is a fabric according to claim 7, and the application includes any one of the following methods: Method 1: First, pour fresh concrete into the mold, then cover the concrete surface with one side of the fabric so that the slurry in the concrete contacts the etching components and microcapsules on the fabric. After the concrete has finally set, remove the fabric and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components. This will form a cloth-like texture pattern on the concrete surface. Method 2: First, lay the fabric flat and fix it on the inner surface of the mold, and then pour fresh concrete into the mold. After pouring, the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric. After the concrete has finally set, remove the template that constitutes the mold, then peel off the fabric, and then use a high-pressure water gun to rinse the concrete surface in contact with the fabric to remove the cement slurry that has not solidified due to the action of the etching components, and a cloth texture pattern can be formed on the concrete surface.

9. The use of a fabric according to claim 8, characterized in that: In the first method, after the slurry in the concrete comes into contact with the etching components and microcapsules on the fabric, a NaOH solution with a pH ≥ 11 is evenly sprayed on the fabric surface, and then the concrete is allowed to finally set; In the second method, after the fabric is laid flat and fixed on the inner surface of the mold, a NaOH solution with a pH of ≥11 is evenly sprayed on the surface of the fabric, and then fresh concrete is poured into the mold.

Citation Information

Patent Citations

  • Preparation method of phase-change regenerated cellulose material

    CN108822343A

  • Hierarchical pore UiO-66 solid phase microextraction fiber prepared by in-situ etching method, and application thereof

    CN112295552A