Traditional Chinese medicine mildew-proof antibacterial gypsum board as well as preparation method and application thereof
By adding concave and convex stick soil to the gypsum board and combining antibacterial Chinese medicinal materials with antibacterial Chinese medicinal materials such as Corundum, Sophora and Honeysuckle, the problem of poor antibacterial and durability of existing gypsum boards is solved, and low-cost and efficient antibacterial and durable properties are achieved, which is suitable for a variety of occasions.
Patent Information
- Application Number
- CN202510159634.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-05-23
AI Technical Summary
The existing antibacterial gypsum board has poor antibacterial effects, poor durability, and high cost, and is not suitable for large-scale use. Especially in special occasions such as medical facilities, food processing and educational institutions, gypsum board not only requires contact antibacterial properties, but also needs to have antibacterial effects on ambient air.
By adding concave and concave stick soil and combining traditional Chinese medicinal materials with antibacterial function, the powder part of the Chinese medicinal material is adsorbed in the porous structure of concave stick soil, and combining the combination of Chinese medicinal materials such as cypress, sorghum and honeysuckle, a Chinese medicine anti-mildew antibacterial gypsum board was prepared. During the preparation process, this gypsum board is subject to specific formulas and processes to ensure that the Chinese medicinal materials exist stably in the gypsum board, and improves antibacterial and durable properties.
The low-cost, efficient antibacterial and durable performance of gypsum board has been achieved. The contact antibacterial performance of gypsum board has reached the Class I standard, the antibacterial performance of air separation reaches the Class II standard, and the durability performance reaches more than 98%. It is suitable for medical facilities, food processing and educational institutions and other occasions.
Smart Images
Figure BDA0005270638450000051 
Figure BDA0005270638450000071
Abstract
Description
Technical Field
[0001] The present application relates to the technical field, and in particular to a traditional Chinese medicine mildew-proof and antibacterial gypsum board and a preparation method and application thereof. Background Art
[0002] Gypsum board has the characteristics of sound insulation, heat insulation, humidity regulation, light weight and low cost, and is widely used as a decorative material in buildings. With the development of society and the advancement of technology, people have higher and higher requirements for the performance of gypsum board, such as the strength of gypsum board, fire resistance, moisture resistance, antibacterial, etc.
[0003] At present, antibacterial gypsum boards are generally added with antibacterial agents such as quaternary ammonium salts, but the antibacterial effect is poor. There are also other solutions to add different antibacterial agents, but the antibacterial effect / durability is poor, or the cost is too high and not suitable for large-scale use. There are also some special occasions where gypsum boards are used, such as medical facilities, food processing, and educational facilities. In addition to contact antibacterial properties, they also need to have antibacterial effects on the air in the environment. Summary of the invention
[0004] In order to solve at least one of the above technical problems and develop a gypsum board with low cost, good antibacterial performance and good durability, the present application provides a traditional Chinese medicine mildew-proof and antibacterial gypsum board and a preparation method and application thereof.
[0005] On the one hand, the present application provides a Chinese medicine mildew-proof and antibacterial gypsum board, which is prepared by including the following components in parts by weight:
[0006] 100 parts of building plaster;
[0007] 2-3 parts of fiber reinforcement;
[0008] 1-2 parts of water reducing agent;
[0009] 5-8 parts of attapulgite;
[0010] 3-5 portions of Chinese medicinal materials;
[0011] 35-45 parts water;
[0012] The Chinese medicinal materials include one or more of Phellodendron amurense, Sophora flavescens and Lonicera japonica.
[0013] Optionally, the weight ratio of the attapulgite to the Chinese medicinal material is 1.50 to 1.67:1.
[0014] Optionally, the attapulgite particle size is 2 to 200 μm.
[0015] Optionally, the fiber reinforcement is glass fiber.
[0016] Optionally, the water reducing agent is a polycarboxylate water reducing agent.
[0017] In a second aspect, the present application provides a method for preparing the above-mentioned gypsum board, comprising the following steps:
[0018] S1. First, grind the Chinese medicinal materials into powder, add attapulgite, and then add water to make a slurry;
[0019] S2, mixing the slurry prepared in S1 with building gypsum, fiber reinforcement, water reducing agent and water to obtain gypsum slurry;
[0020] S3, injecting gypsum slurry into the mold, expelling bubbles, and letting it stand to solidify naturally to obtain a gypsum board.
[0021] Optionally, the Chinese medicinal materials include at least one of Phellodendron chinense and Sophora flavescens and honeysuckle.
[0022] In a third aspect, the present application provides a method for preparing the above-mentioned gypsum board, comprising the following steps:
[0023] S1. Grind Phellodendron chinense and / or Sophora flavescens into powder, add attapulgite, and then add water to prepare slurry;
[0024] S2, mixing the slurry prepared in S1 with honeysuckle, building gypsum, fiber reinforcement, water reducing agent and water to obtain gypsum slurry;
[0025] S3, injecting gypsum slurry into the mold, expelling bubbles, and letting it stand to solidify naturally to obtain a gypsum board.
[0026] In a fourth aspect, the present application provides the application of the above-mentioned gypsum board in the fields of medical facilities, food processing, and educational institutions.
[0027] In summary, the present invention includes at least one of the following beneficial technical effects:
[0028] 1. By adding attapulgite and Chinese medicinal materials with antibacterial function, the Chinese medicinal material powder can be partially adsorbed in the porous structure inside the attapulgite, so that during the processing of the gypsum board, the loss of Chinese medicinal materials is effectively reduced, and in the environment where the subsequent gypsum board is located, the Chinese medicinal materials can be more firmly present in the gypsum board, and it is not easy to separate from the gypsum board under processing vibration, humid air and other environments, which greatly reduces the antibacterial performance of the gypsum board;
[0029] 2. The use of contact antibacterial Chinese medicinal materials such as Phellodendron chinense and Sophora flavescens and volatile antibacterial Chinese medicinal materials such as Honeysuckle can improve the antibacterial properties of the surface and interior of the gypsum board, and also have antibacterial properties for the air in the environment where the gypsum board is located;
[0030] 3. By pre-treating Phellodendron chinense and Sophora flavescens contact antibacterial Chinese medicinal materials with attapulgite, they can be partially adsorbed into the porous structure inside the attapulgite, and honeysuckle is added later so that it is distributed in the gypsum board, which is beneficial to subsequent volatilization and improves the antibacterial performance. DETAILED DESCRIPTION
[0031] The present application is further described in detail below with reference to the embodiments.
[0032] In the following examples of the present application, the main components involved, unless otherwise specified, were purchased from commercially available products.
[0033] The particle size of attapulgite is 2 to 200 μm.
[0034] The fiber reinforcement is exemplified by glass fiber.
[0035] The water reducing agent is exemplified by a polycarboxylate water reducing agent. Specific embodiments
[0037] Example 1
[0038] First, grind 3 parts by weight of Phellodendron amurense into powder, add 5 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare a slurry;
[0039] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0040] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0041] Example 2
[0042] First, grind 2 parts by weight of Sophora flavescens and 2 parts by weight of Honeysuckle into powder, add 6 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare slurry;
[0043] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0044] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0045] Example 3
[0046] First, grind 2 parts by weight of Phellodendron amurense and 3 parts by weight of honeysuckle into powder, add 7 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare a slurry;
[0047] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0048] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0049] Example 4
[0050] First, grind 1 part by weight of Sophora flavescens and 2 parts by weight of Honeysuckle into powder, add 8 parts by weight of Attapulgite, and then add 5 parts by weight of water to prepare slurry;
[0051] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0052] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0053] Comparative Example 1
[0054] First, grind 3 parts by weight of Phellodendron chinense into powder, and then add 5 parts by weight of water to prepare a slurry;
[0055] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0056] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0057] The contact antibacterial performance test was carried out in accordance with GB / T 21866-2008, and the gypsum board was made into a closed space with a length, width and height of one meter. A culture dish was placed in the middle of the space for air-to-air antibacterial performance test. The results are shown in Table 1.
[0058] Table 1
[0059]
[0060] It can be seen from Examples 1 to 4, Comparative Example 1 and Table 1 that the antibacterial performance of the gypsum board can reach more than 99%, meeting the requirements of Class I standards, and the durability can reach more than 98%, meeting the requirements of Class I standards. In terms of air-to-air antibacterial performance, the gypsum board prepared by the technical solution of the present application is improved by honeysuckle. In Examples 2 to 4, the antibacterial performance can reach more than 75%, and the durability is about 30%.
[0061] Further analysis of Table 1 shows that when the weight ratio of attapulgite to Chinese medicinal materials is in the range of 1.50 to 1.67:1, the contact antibacterial performance / durability performance is relatively higher.
[0062] In order to improve the air-to-air antibacterial performance of the technical solution of the present application, the inventors further improved the preparation method, and based on Examples 2 to 4, prepared the following Examples 5 to 7, as follows.
[0063] Example 5
[0064] First, grind 2 parts by weight of Sophora flavescens into powder, add 6 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare a slurry;
[0065] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of honeysuckle, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0066] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0067] Example 6
[0068] First, grind 2 parts by weight of Phellodendron amurense into powder, add 7 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare a slurry;
[0069] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 3 parts by weight of honeysuckle, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0070] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0071] Example 7
[0072] First, grind 1 part by weight of Sophora flavescens into powder, add 8 parts by weight of attapulgite, and then add 5 parts by weight of water to prepare a slurry;
[0073] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of honeysuckle, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0074] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0075] Comparative Example 1
[0076] First, grind 3 parts by weight of Phellodendron chinense into powder, and then add 5 parts by weight of water to prepare a slurry;
[0077] The slurry prepared above was mixed with 100 parts by weight of building gypsum, 2 parts by weight of fiber reinforcement, 1 part by weight of water reducing agent and 35 parts by weight of water to obtain gypsum slurry;
[0078] The gypsum slurry is injected into the mold, the bubbles are expelled, and it is left to solidify naturally to obtain a gypsum board.
[0079] The contact antibacterial performance test was carried out in accordance with GB / T 21866-2008, and the gypsum board was made into a closed space with a length, width and height of one meter. A culture dish was placed in the middle of the space for air-to-air antibacterial performance test. The results are shown in Table 2.
[0080] Table 2
[0081]
[0082] It can be seen from Examples 5 to 7 and Table 2 that when Phellodendron amurense / Sophora flavescens is first mixed with attapulgite to make a pulp, and then the pulp is mixed with honeysuckle, gypsum, etc., the contact antibacterial performance / durability of the prepared gypsum board can still meet the requirements of Class I standards, and the air antibacterial performance is significantly improved compared with Examples 2 to 4, and can meet or exceed the requirements of Class II standards, and the durability performance can also meet or exceed the requirements of Class II standards.
[0083] Further analysis of Table 2 shows that when the weight ratio of attapulgite to Chinese medicinal materials is 1.50, the air-to-air antibacterial performance can reach the requirements of Class I standards, and the durability can also reach more than 90%.
[0084] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A Chinese medicine mildew-proof and antibacterial gypsum board, characterized in that: The invention is prepared by comprising the following components in parts by weight: 100 parts of building plaster; 2-3 parts of fiber reinforcement; 1-2 parts of water reducing agent; 5-8 parts of attapulgite; 3-5 portions of Chinese medicinal materials; 35-45 parts water; The Chinese medicinal materials include one or more of Phellodendron amurense, Sophora flavescens and Lonicera japonica.
2. The gypsum board according to claim 1, characterized in that The Chinese medicinal materials include at least one of Phellodendron chinense and Sophora flavescens and honeysuckle.
3. The gypsum board according to claim 1, characterized in that The weight ratio of the attapulgite to the Chinese medicinal material is 1.50-1.67:
1.
4. The gypsum board according to claim 1, characterized in that The particle size of the attapulgite is 2 to 200 μm.
5. The gypsum board according to claim 1, characterized in that The fiber reinforcement is glass fiber.
6. The gypsum board according to claim 1, characterized in that The water reducing agent is a polycarboxylate water reducing agent.
7. A method for preparing a gypsum board according to claims 1 to 6, characterized in that: The following steps are involved: S1. First, grind the Chinese medicinal materials into powder, add attapulgite, and then add water to make a slurry; S2, mixing the slurry prepared in S1 with building gypsum, fiber reinforcement, water reducing agent and water to obtain gypsum slurry; S3, injecting gypsum slurry into the mold, expelling bubbles, and letting it stand to solidify naturally to obtain a gypsum board.
8. A method for preparing a gypsum board according to claim 2, characterized in that: The following steps are involved: S1. Grind Phellodendron chinense and / or Sophora flavescens into powder, add attapulgite, and then add water to prepare slurry; S2, mixing the slurry prepared in S1 with honeysuckle, building gypsum, fiber reinforcement, water reducing agent and water to obtain gypsum slurry; S3, injecting gypsum slurry into the mold, expelling bubbles, and letting it stand to solidify naturally to obtain a gypsum board.
9. Use of the gypsum board according to claim 1 in the fields of medical facilities, food processing, and educational institutions.