A process for improving the strength of PVC honeycomb mesh structure in photocatalyst substrate

Abstract

This invention discloses a process for improving the structural strength of PVC honeycomb mesh as a photocatalytic substrate. The method includes the following steps: cleaning and baking the PVC honeycomb mesh; impregnating the PVC honeycomb mesh with water-based adhesive and removing excess adhesive from the mesh openings with a high-pressure air gun; baking the impregnated PVC honeycomb mesh; automatically spraying adhesive onto the PVC honeycomb mesh; and evenly sprinkling photocatalytic particles onto the sprayed PVC honeycomb mesh and baking it. This invention employs a two-stage adhesive application process, with one impregnation and one spraying. The impregnation forms a thin adhesive layer on the surface and joints of the PVC honeycomb mesh, providing coverage, protection, and strength enhancement, serving as the first layer of protection. The second spraying adds another layer of protection on top of the existing layer, while simultaneously fixing the photocatalytic material, serving as the second layer of protection. This double-layer adhesive process effectively enhances the structural strength of the honeycomb mesh.

Description

Technical Field

[0001] This invention relates to the field of photocatalyst technology, and in particular to a process method for improving the strength of PVC honeycomb mesh structure in photocatalyst substrates. Background Technology

[0002] PVC honeycomb mesh is widely used as a carrier for photocatalysts in photocatalysis. The honeycomb mesh is not a one-piece molding process, but is made by gluing together individual hexagonal prisms and then cutting them as needed. Its overall structural strength is limited by the manufacturing process and the bonding strength of the adhesive. For photocatalytic products used in mobile vehicles, such as car air purifiers and air purification systems in public transportation, long-term vibration can easily cause the honeycomb mesh to crack, rendering the product unusable. Furthermore, the strong oxygen in photocatalysis itself can corrode the honeycomb mesh. Therefore, improving the structural strength of PVC honeycomb mesh is of great importance for practical applications. Summary of the Invention

[0003] To address the issues mentioned above, such as long-term vibration easily causing cracks in the honeycomb mesh, and the strong oxygen in photocatalysis itself corroding the honeycomb mesh, this invention provides a process method to improve the structural strength of PVC honeycomb mesh substrates for photocatalysis.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a process method for improving the strength of PVC honeycomb mesh structure of photocatalyst substrate, the method comprising the following steps:

[0005] Clean and bake the PVC honeycomb mesh;

[0006] PVC honeycomb mesh is impregnated with water-based adhesive, and excess adhesive is removed from the mesh openings using a high-pressure air gun;

[0007] Bake the PVC honeycomb mesh after it has been impregnated with resin.

[0008] Automated glue spraying for PVC honeycomb mesh;

[0009] After the PVC honeycomb mesh is coated with adhesive, photocatalyst particles are evenly sprinkled on it and then baked.

[0010] Furthermore, the PVC honeycomb mesh is cleaned by ultrasonic cleaning, and the subsequent baking is done in a tunnel oven at a temperature of 40-60℃ for 20-30 minutes.

[0011] Furthermore, the PVC honeycomb mesh is baked in an oven at a temperature of 40-60℃ for 50-60 minutes after impregnation.

[0012] Furthermore, the PVC honeycomb mesh is baked in an oven at a temperature of 40-60℃ for 20-30 minutes after the adhesive is sprayed.

[0013] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

[0014] This invention employs a two-stage adhesive application process: one layer of adhesive impregnation and the other of adhesive spraying. The impregnation process forms a thin adhesive layer on the surface and joints of the PVC honeycomb mesh, providing coverage, protection, and strength enhancement, thus serving as the first layer of protection. The second layer of adhesive spraying adds another layer of protection on top of the existing layer, while simultaneously fixing the photocatalytic material, providing a second layer of protection. This double-layer adhesive process effectively enhances the structural strength of the honeycomb mesh. In tensile tests compared to untreated PVC honeycomb mesh, the tensile strength of the PVC honeycomb mesh treated with the two-stage adhesive application process is increased by more than 2 times. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 This invention provides a process for improving the strength of a PVC honeycomb structure used in photocatalyst substrates. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] Example

[0019] refer to Figure 1 A process for improving the strength of PVC honeycomb mesh structure in photocatalyst substrate, the method comprising the following steps:

[0020] The PVC honeycomb mesh is ultrasonically cleaned and baked in a tunnel oven at 50°C for 30 minutes.

[0021] The first coat of adhesive is applied to the PVC honeycomb mesh using water-based glue, and excess adhesive is removed from the mesh openings using a high-pressure air gun.

[0022] The PVC honeycomb mesh after impregnation is subjected to the following process:

[0023] The PVC honeycomb mesh is applied with a second coat of adhesive using automated spraying.

[0024] After the PVC honeycomb mesh was coated with adhesive, photocatalyst particles were evenly sprinkled on it and baked in an oven at 50°C for 30 minutes.

[0025] This invention employs a two-stage adhesive application process: one layer of adhesive impregnation and the other of adhesive spraying. The impregnation process forms a thin adhesive layer on the surface and joints of the PVC honeycomb mesh, providing coverage, protection, and strength enhancement, thus serving as the first layer of protection. The second layer of adhesive spraying adds another layer of protection on top of the existing layer, while simultaneously fixing the photocatalytic material, providing a second layer of protection. This double-layer adhesive process effectively enhances the structural strength of the honeycomb mesh. In tensile tests compared to untreated PVC honeycomb mesh, the tensile strength of the PVC honeycomb mesh treated with the two-stage adhesive application process is increased by more than 2 times.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process for improving the strength of a PVC honeycomb mesh structure in a photocatalyst substrate, characterized in that: The method includes the following steps: Clean and bake the PVC honeycomb mesh; PVC honeycomb mesh is impregnated with water-based adhesive, and excess adhesive is removed from the mesh openings using a high-pressure air gun; Bake the PVC honeycomb mesh after it has been impregnated with resin. Automated glue spraying for PVC honeycomb mesh; After the PVC honeycomb mesh is coated with adhesive, photocatalyst particles are evenly sprinkled on it and then baked. The PVC honeycomb mesh after impregnation is baked in an oven at a temperature of 40-60℃ for 50-60 minutes. The PVC honeycomb mesh is not a single piece, but rather made by gluing together individual hexagonal prisms and then cutting them as needed.

2. The process for improving the strength of a PVC honeycomb structure for photocatalyst substrate according to claim 1, characterized in that: The PVC honeycomb mesh is cleaned by ultrasonic cleaning, and then baked in a tunnel oven at a temperature of 40-60℃ for 20-30 minutes.

3. The process for improving the strength of a PVC honeycomb structure for photocatalyst substrate according to claim 1, characterized in that: The PVC honeycomb mesh is baked in an oven at a temperature of 40-60℃ for 20-30 minutes after the adhesive is sprayed.

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