Anti-static PTFE needled felt

Abstract

The utility model relates to the technical field of PTFE needled felt manufacturing, and discloses an anti-static PTFE needled felt which comprises base cloth, static electricity elimination layers used for eliminating static electricity are arranged on the upper side and the lower side of the base cloth respectively, anti-static liquid treatment layers are arranged at the upper end of the static electricity elimination layer close to the upper portion and the lower end of the static electricity elimination layer close to the lower portion respectively, and a ground wire butt joint wire is arranged on one side of the base cloth. The needled felt is composed of base cloth, static elimination layers are arranged on the upper side and the lower side of the base cloth respectively and used for effectively reducing the static value, anti-static liquid treatment layers are arranged at the upper end of the static elimination layer close to the upper portion and the lower end of the static elimination layer close to the lower portion respectively so as to enhance the anti-static performance, and particularly, pure copper wire woven nets are embedded into the two static elimination layers so that the static elimination layers can be effectively prevented from being damaged. When static electricity is accumulated on the surface of the needled felt, the static electricity is guided into the pure copper wire woven net through the static electricity elimination layer and is safely guided into the ground through the ground wire butt joint wire, so that the static electricity is effectively eliminated, and the problem that the anti-static effect is reduced after a traditional anti-static PTFE needled felt is used for a long time is solved.

Description

Technical Field

[0001] This utility model relates to the field of PTFE needle-punched felt manufacturing technology, specifically, to an antistatic PTFE needle-punched felt. Background Technology

[0002] Antistatic PTFE needle-punched felt is a high-efficiency filter material. It is made from polytetrafluoroethylene (PTFE) through processes such as stretching, heat treatment and surface treatment. This material has excellent antistatic properties, which can effectively reduce the adhesion between dust and the filter bag surface, reduce the amount of dust adsorbed, and thus improve dust removal efficiency.

[0003] In the prior art, conventional antistatic PTFE needle-punched felt is typically prepared by soaking it in a solution containing antistatic agents SDC-201, SDC-205, and SDC-210, followed by drying and curing. This process ensures the antistatic agents are evenly distributed on the surface or inside the felt to improve its antistatic performance. However, after prolonged use, these antistatic agents gradually detach and decrease, leading to a significant reduction in the antistatic effect. Therefore, those skilled in the art provide an antistatic PTFE needle-punched felt to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an antistatic PTFE needle-punched felt, which solves the problem that in the existing technology, traditional antistatic PTFE needle-punched felt is usually made by soaking in a solution containing antistatic agents SDC-201, SDC-205 and SDC-210, and then drying and curing it to make the antistatic agents evenly distributed on its surface or inside to improve its antistatic performance. However, after long-term use, these antistatic agents will gradually fall off and decrease, resulting in a significant decrease in the antistatic effect.

[0005] This utility model provides the following technical solution: an antistatic PTFE needle-punched felt, comprising a base fabric, wherein the base fabric is provided with an antistatic eliminator layer for eliminating static electricity on both the upper and lower sides, and an antistatic liquid treatment layer is provided at the upper end of the antistatic eliminator layer and the lower end of the antistatic eliminator layer, and a ground wire connection is provided on one side of the base fabric.

[0006] As a preferred embodiment of the above technical solution, both electrostatic discharge layers include a PTFE porous membrane layer, the two PTFE porous membrane layers are respectively disposed on both sides of the lower end of the base fabric, and a pure copper wire mesh is disposed inside both PTFE porous membrane layers, and a conductive strip is fixedly connected to one side of each of the two pure copper wire meshes.

[0007] As a preferred embodiment of the above technical solution, the PTFE porous membrane layer and the base fabric are connected together by stitching, wherein the stitching thread is a special fiber thread that is compatible with PTFE and base fabric materials, and is resistant to high temperature and corrosion, to ensure the connection is strong and antistatic.

[0008] As a preferred embodiment of the above technical solution, one side of each of the two conductive strips is fixedly connected to the ground wire.

[0009] As a preferred embodiment of the above technical solution, the two antistatic liquid treatment layers are respectively bonded to the upper end of the upper PTFE porous membrane layer and the lower end of the lower PTFE porous membrane layer.

[0010] As a preferred embodiment of the above technical solution, the static eliminator layer is prepared by immersing a composite material of a PTFE porous membrane layer and a pure copper wire mesh in a solution containing antistatic agents SDC-201, SDC-205 and SDC-210, and then drying and curing it.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The working principle of this antistatic PTFE needle-punched felt is as follows: The needle-punched felt is composed of a base fabric with static discharge layers on both the upper and lower sides to effectively reduce static electricity. Antistatic liquid treatment layers are also provided at the upper and lower ends of the static discharge layers to enhance antistatic performance. Notably, pure copper wire mesh is embedded within both static discharge layers. When static electricity accumulates on the surface of the needle-punched felt, the static electricity is conducted through the static discharge layers to the pure copper wire mesh and then safely conducted to the ground via the grounding wire, thus effectively eliminating static electricity and solving the problem of decreased antistatic effect after long-term use of traditional antistatic PTFE needle-punched felt. Attached Figure Description

[0013] Figure 1 A schematic diagram of the three-dimensional structure of an antistatic PTFE needle-punched felt;

[0014] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0015] Figure 3 A schematic diagram of the three-dimensional disassembled structure of an antistatic PTFE needle-punched felt;

[0016] Figure 4 A three-dimensional structural diagram of an antistatic PTFE needle-punched felt static discharge layer;

[0017] Figure 5 for Figure 4 A magnified view of a portion of point B in the middle.

[0018] Legend:

[0019] 1. Base fabric; 2. Static eliminator layer; 201. PTFE porous membrane layer; 202. Pure copper wire mesh; 203. Conductive strip; 3. Antistatic liquid treatment layer; 4. Grounding wire connection. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figures 1-3 As shown, this utility model provides a technical solution: an antistatic PTFE needle-punched felt, including a base fabric 1. The base fabric 1 has antistatic eliminator layers 2 on both its upper and lower sides for removing static electricity. Antistatic liquid treatment layers 3 are provided at the upper and lower ends of the antistatic eliminator layers 2. A grounding wire 4 is provided on one side of the base fabric 1. The working principle of this antistatic PTFE needle-punched felt is as follows: The needle-punched felt is composed of a base fabric 1, with antistatic eliminator layers 2 on both its upper and lower sides to effectively reduce static electricity. Antistatic liquid treatment layers 3 are also provided at the upper and lower ends of the antistatic eliminator layers 2 to enhance antistatic performance. Notably, pure copper wire mesh 202 is embedded inside the two antistatic eliminator layers 2. When static electricity accumulates on the surface of the needle-punched felt, the static electricity is conducted through the antistatic eliminator layers 2 to the pure copper wire mesh 202, and then safely conducted to the ground via the grounding wire 4, thereby effectively removing static electricity and solving the problem of decreased antistatic effect after long-term use of traditional antistatic PTFE needle-punched felt.

[0022] As one implementation method in this embodiment, such as Figure 4 and Figure 5As shown, both static elimination layers 2 include a PTFE porous membrane layer 201, which is respectively disposed on both sides of the lower end of the base fabric 1. A pure copper wire mesh 202 is disposed inside each of the two PTFE porous membrane layers 201. A conductive strip 203 is fixedly connected to one side of each of the two pure copper wire meshes 202. The PTFE porous membrane layer 201 and the base fabric 1 are connected together by stitching. The stitching thread is a special high-temperature resistant and corrosion-resistant fiber thread compatible with the PTFE and base fabric 1 materials to ensure a strong connection and antistatic properties. The two antistatic liquid treatment layers 3 are respectively bonded to the upper PTF layer. The upper end of the E-pore membrane layer 201 and the lower end of the lower PTFE pore membrane layer 201 are connected. The static eliminator layer 2 is formed by immersing the composite material of the PTFE pore membrane layer 201 and the pure copper wire mesh 202 in a solution containing antistatic agents SDC-201, SDC-205, and SDC-210, followed by drying and curing. This antistatic PTFE needle-punched felt mainly consists of a base fabric 1 and static eliminator layers 2 on its upper and lower sides. The static eliminator layer 2 specifically includes the PTFE pore membrane layer 201, which is respectively located on both sides of the lower end of the base fabric 1. Inside the TFE porous membrane layer 201, a pure copper wire mesh 202 is embedded to enhance electrostatic conductivity. A conductive strip 203 is fixedly connected to one side of the pure copper wire mesh 202, and the conductive strip 203 is then fixedly connected to the ground wire 4 to form a complete electrostatic discharge path. The PTFE porous membrane layer 201 is tightly connected to the base fabric 1 by stitching. The stitching thread uses a special high-temperature resistant and corrosion-resistant fiber thread that is compatible with the PTFE and base fabric 1 materials, which ensures the strength of the connection and the overall antistatic performance. In addition, two antistatic liquid treatment layers 3 are respectively bonded to the upper and lower PTFE porous membranes. The outer end of layer 201 further enhances the antistatic effect of the needle-punched felt. The static discharge layer 2 is made by immersing the composite material of PTFE porous membrane layer 201 and pure copper wire mesh 202 in a solution containing antistatic agents SDC-201, SDC-205 and SDC-210, followed by drying and curing. When static electricity accumulates on the surface of the needle-punched felt, the static electricity will be quickly conducted through PTFE porous membrane layer 201 to pure copper wire mesh 202, and then safely conducted to the ground through conductive strip 203 and ground wire connection 4, thereby achieving effective static discharge.

[0023] As one implementation method in this embodiment, such as Figure 1 , Figure 2 and Figure 5As shown, one side of each of the two conductive strips 203 is fixedly connected to the ground wire connection 4. This antistatic PTFE needle-punched felt design has significant beneficial effects. First, by introducing pure copper wire mesh 202 and conductive strips 203 and connecting them to the ground wire connection 4, an efficient and stable static discharge path is constructed, greatly improving the antistatic performance of the needle-punched felt. Second, the PTFE porous membrane layer 201 and the base fabric 1 are sewn together with special fiber thread to ensure the strong connection and overall durability. Furthermore, the addition of the antistatic liquid treatment layer 3 further enhances the antistatic effect of the needle-punched felt, enabling it to maintain stable performance in various harsh environments. This design effectively solves the problem of the decline in antistatic effect of traditional antistatic PTFE needle-punched felt after long-term use. Through optimized structure and material selection, this antistatic PTFE needle-punched felt can still maintain excellent antistatic performance during long-term use, providing strong technical support for electrostatic protection in related fields.

[0024] Working Principle: This antistatic PTFE needle-punched felt mainly consists of a base fabric 1 and static eliminator layers 2 on its upper and lower sides. The static eliminator layers 2 specifically include PTFE porous membrane layers 201, which are respectively located on both sides of the lower end of the base fabric 1. Inside the PTFE porous membrane layers 201, a pure copper wire mesh 202 is embedded to enhance static conductivity. A conductive strip 203 is also fixedly connected to one side of the pure copper wire mesh 202, and the conductive strip 203 is then fixedly connected to the ground wire connection 4, forming a complete static discharge path. The PTFE porous membrane layer 201 and the base fabric 1... The components are tightly connected by stitching. The stitching thread uses a special high-temperature and corrosion-resistant fiber thread compatible with PTFE and base fabric 1, ensuring a strong connection and overall antistatic performance. Furthermore, two antistatic liquid treatment layers 3 are bonded to the outer ends of the upper and lower PTFE porous membrane layers 201, further enhancing the antistatic effect of the needle-punched felt. The static eliminator layer 2 is manufactured by immersing the composite material of the PTFE porous membrane layer 201 and pure copper wire mesh 202 in an antistatic agent containing SDC-201, SDC-205, and SDC-206. The needle-punched felt is obtained by drying and curing in a solution of 210. When static electricity accumulates on the surface of the needle-punched felt, the static electricity is quickly conducted through the PTFE porous membrane layer 201 to the pure copper wire mesh 202, and then safely conducted to the ground via the conductive strip 203 and the grounding wire 4, thus achieving effective static electricity discharge. This antistatic PTFE needle-punched felt design has significant beneficial effects. First, by introducing the pure copper wire mesh 202 and the conductive strip 203, and connecting them to the grounding wire 4, an efficient and stable static electricity discharge path is constructed, greatly improving the antistatic performance of the needle-punched felt. Second, The PTFE porous membrane layer 201 is sewn with special fiber thread to the base fabric 1, ensuring the strong connection and overall durability. Furthermore, the addition of the antistatic liquid treatment layer 3 further enhances the antistatic effect of the needle-punched felt, enabling it to maintain stable performance in various harsh environments. This design effectively solves the problem of the decline in antistatic effect of traditional antistatic PTFE needle-punched felt after long-term use. Through optimized structure and material selection, this antistatic PTFE needle-punched felt can still maintain excellent antistatic performance during long-term use, providing strong technical support for electrostatic protection in related fields.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An antistatic PTFE needle-punched felt, comprising a base fabric (1), characterized in that: The base fabric (1) is provided with static discharge layers (2) on both the upper and lower sides for static discharge. The upper end of the static discharge layer (2) and the lower end of the static discharge layer (2) are provided with antistatic liquid treatment layers (3). A ground wire connection line (4) is provided on one side of the base fabric (1).

2. The antistatic PTFE needle-punched felt according to claim 1, characterized in that: Both of the electrostatic discharge layers (2) include a PTFE porous membrane layer (201). The two PTFE porous membrane layers (201) are respectively disposed on both sides of the lower end of the base fabric (1). Pure copper wire mesh (202) is disposed inside the two PTFE porous membrane layers (201). A conductive strip (203) is fixedly connected to one side of each of the two pure copper wire meshes (202).

3. The antistatic PTFE needle-punched felt according to claim 2, characterized in that: The PTFE porous membrane layer (201) and the base fabric (1) are connected together by stitching.

4. The antistatic PTFE needle-punched felt according to claim 2, characterized in that: One side of each of the two conductive strips (203) is fixedly connected to the ground wire (4).

5. The antistatic PTFE needle-punched felt according to claim 2, characterized in that: The two antistatic liquid treatment layers (3) are respectively bonded to the upper end of the upper PTFE porous membrane layer (201) and the lower end of the lower PTFE porous membrane layer (201).

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