Antistatic high-strength filter material and preparation method thereof

Abstract

The invention discloses an antistatic high-strength filter material and a preparation method thereof.The antistatic high-strength filter material comprises a base cloth layer, antistatic layers are arranged at the upper end and the lower end of the base cloth layer, reinforcing layers are arranged at the outer side ends of the two antistatic layers, and each reinforcing layer comprises a polyester fiber yarn layer, an aluminum alloy net and a polytetrafluoroethylene nanoparticle layer; the polyester fiber yarn layer is arranged close to the outer side end of the antistatic layer, the aluminum alloy nets are arranged at the outer side ends of the polyester fiber yarn layer, the polytetrafluoroethylene nano-particle layer is arranged at the outer side ends of the aluminum alloy nets, and a plurality of aluminum alloy wires are connected between the two aluminum alloy nets. A plurality of aluminum alloy wires penetrate through the antistatic layer and the base cloth layer, through the design of the reinforcing layer, the reinforcing layer is matched with the polyester fiber yarn layer, the aluminum alloy nets and the polytetrafluoroethylene nanoparticle layer, the upper side and the lower side of the reinforcing layer are reinforced and protected, and the aluminum alloy wires between the two aluminum alloy nets further reinforce the whole body; the overall strength is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of filter materials, and more specifically, it relates to an antistatic high-strength filter material and a preparation method thereof. Background Art

[0002] The so-called filter material is the filtering material used in the production and living processes. The filter material filters dust from the moisture or air passing through it to achieve an efficient filtering effect. When the existing filter materials are in use, the overall strength of the filter materials is limited, and they are prone to tearing after being used for a period of time. There is a lack of a suitable strengthening mechanism. Moreover, when the filter materials are in use, the antistatic effect is poor, and there is a lack of a suitable antistatic protection mechanism. In addition, the filter materials are prone to clogging after being used for a long time, and the cleaning operation is rather troublesome. Summary of the Invention

[0003] (I) Technical Problems to be Solved

[0004] In view of the problems existing in the prior art, the present invention provides an antistatic high-strength filter material and a preparation method thereof to solve the technical problems mentioned in the background art, namely, the overall strength of the filter material is limited, it is prone to tearing after being used for a period of time, and there is a lack of a suitable strengthening mechanism.

[0005] (II) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solution: an antistatic high-strength filter material, including a base fabric layer, antistatic layers are provided at both upper and lower ends of the base fabric layer, reinforcing layers are provided at the outer ends of the two antistatic layers. The reinforcing layer includes a polyester fiber yarn layer, an aluminum alloy mesh, and a polytetrafluoroethylene nanoparticle layer. The polyester fiber yarn layer is arranged at the outer end close to the antistatic layer, the aluminum alloy mesh is arranged at the outer end of the polyester fiber yarn layer, the polytetrafluoroethylene nanoparticle layer is arranged at the outer end of the aluminum alloy mesh. Aluminum alloy wires are connected between the two aluminum alloy meshes. There are multiple aluminum alloy wires, and multiple aluminum alloy wires penetrate through the antistatic layer and the base fabric layer.

[0007] The present invention is further arranged such that conductive strips are provided between the two antistatic layers. There are two conductive strips symmetrically arranged, and both two conductive strips penetrate through the base fabric layer to improve the antistatic effect.

[0008] The present invention is further arranged such that heat-resistant layers are provided at the outer ends of the two reinforcing layers, and fireproof layers are provided between the two heat-resistant layers and the reinforcing layers to improve the heat-resistant and fireproof effects.

[0009] The present invention is further arranged such that antibacterial layers are provided at the outer ends of the two heat-resistant layers to achieve antibacterial and anticorrosive effects.

[0010] The present invention is further configured such that adsorption layers are provided at the outer ends of both of the antibacterial layers to adsorb impurities on the outside.

[0011] The present invention is further configured such that grooves are formed at the outer ends of both of the adsorption layers, and a plurality of the grooves are arranged at intervals to achieve adsorption and collection and facilitate cleaning.

[0012] The present invention further includes a preparation method of an antistatic high-strength filter material and a preparation method thereof, characterized by comprising the following steps:

[0013] A. Production of warp and weft:

[0014] Using a high-strength fiber filament as a baseline, and then using two other high-strength fiber filaments with diameters less than or equal to the baseline as reinforcing lines, and reversely spirally winding the two reinforcing lines around the outside of the baseline (6) through a winding machine to form the spare warp and weft;

[0015] B. Weaving of the base fabric layer:

[0016] Weaving the above-mentioned warp and weft through a weaving machine. At the same time, cross-intertwining and winding the first locking line between the warp and corresponding multiple wefts, and synchronously cross-intertwining and winding the second locking line between two adjacent groups of the first locking lines. The base fabric layer is formed through the cooperation of the warp, weft, first locking line, and second locking line. Among them, part of the warp can be replaced by conductive fibers;

[0017] C. Covering the wire mesh layer on the inner side of the base fabric layer formed in step B by stitching or gluing;

[0018] D. Then, subjecting the filter material structure formed in the above step C to finishing processes such as impregnation treatment, desizing treatment, volatilization treatment, drying treatment, and heat setting in sequence, so as to form a polytetrafluoroethylene impregnation treatment layer on the inner side of the wire mesh layer and the outer side of the base fabric layer;

[0019] E. After that, on the basis of step D, introducing the whole into a coating machine for coating processing, and coating the surface of the filter material formed in step D with the pre-prepared polytetrafluoroethylene resin to form a polytetrafluoroethylene coating;

[0020] F. After that, introducing the filter material formed in step E and the polytetrafluoroethylene microporous film into a laminating machine at the same time for surface laminating processing of the polytetrafluoroethylene microporous film, and bonding the polytetrafluoroethylene microporous film with the filter material formed in step E through high-temperature hot pressing, thereby forming the high-strength filter material described in claim 1.

[0021] The present invention is further configured such that the coating thickness of the polytetrafluoroethylene coating is 100 μm, the speed is 2 m / min, and the sintering temperature is 200 °C.

[0022] The present invention is further configured such that when the polytetrafluoroethylene microporous film is laminated, the lamination temperature is 200 °C, the pressure is 0.3 MPa, and the running speed is 3 m / min.

[0023] The present invention is further configured such that during the impregnation treatment of the polytetrafluoroethylene impregnation treatment layer, the overall sizing amount is controlled at 10%, the volatilization treatment temperature is 99 °C, the drying temperature is 130 °C, and the heat setting temperature is 180 °C

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the present invention provides an antistatic high-strength filter material and a preparation method thereof, having the following beneficial effects:

[0026] 1. Through the design of the reinforcement layer, the reinforcement layer is arranged in cooperation with the polyester fiber yarn layer, the aluminum alloy mesh and the polytetrafluoroethylene nanoparticle layer to achieve enhanced protection on the upper and lower sides. The aluminum alloy wires between the two aluminum alloy meshes further strengthen the whole, improving the overall strength.

[0027] 2. Through the design of the antistatic layer, the antistatic layers arranged up and down are connected by conductive strips to achieve antistatic protection for the whole, improving the antistatic protection effect.

[0028] 3. Through the design of the adsorption layer, the adsorption layer adsorbs external impurities, and the grooves collect the adsorbed impurities, facilitating regular cleaning after adsorption and avoiding blockage inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 FIG. is a schematic diagram of the overall structure preferably of an antistatic high-strength filter material and a preparation method thereof;

[0030] Figure 2 FIG. is an exploded schematic diagram of the overall structure preferably of an antistatic high-strength filter material and a preparation method thereof;

[0031] Figure 3 FIG. is a cross-sectional view of the internal structure of the base fabric layer, the antistatic layer and the reinforcement layer preferably of an antistatic high-strength filter material and a preparation method thereof;

[0032] Figure 4 FIG. is an exploded view of the internal structure of the reinforcement layer preferably of an antistatic high-strength filter material and a preparation method thereof;

[0033] Figure 5 FIG. is a schematic diagram of the structure of the base fabric layer preferably of an antistatic high-strength filter material and a preparation method thereof.

[0034] In the figure: 1, base fabric layer; 2, antistatic layer; 3, reinforcement layer; 4, polyester fiber yarn layer; 5, aluminum alloy mesh; 6, polytetrafluoroethylene nanoparticle layer; 7, aluminum alloy wire; 8, conductive strip; 9, high-temperature resistant layer; 10, fireproof layer; 11, antibacterial layer; 12, adsorption layer; 13, groove. Specific embodiments

[0035] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0036] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0037] In the present invention, unless otherwise stated, the orientations such as "upper and lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for ease of understanding and description, "left and right" are generally left and right as shown in the drawings; "inside and outside" refer to the inside and outside of the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0038] Please refer to Figures 1 - 5 , an antistatic high-strength filter material, including a base fabric layer 1, antistatic layers 2 are provided at both the upper and lower ends of the base fabric layer 1, reinforcement layers 3 are provided at the outer ends of the two antistatic layers 2, the reinforcement layer 3 includes a polyester fiber yarn layer 4, an aluminum alloy mesh 5 and a polytetrafluoroethylene nanoparticle layer 6, the polyester fiber yarn layer 4 is arranged at the outer end close to the antistatic layer 2, the aluminum alloy mesh 5 is arranged at the outer end of the polyester fiber yarn layer 4, the polytetrafluoroethylene nanoparticle layer 6 is arranged at the outer end of the aluminum alloy mesh 5, aluminum alloy wires 7 are connected between the two aluminum alloy meshes 5, there are a plurality of aluminum alloy wires 7, and the plurality of aluminum alloy wires 7 penetrate through the antistatic layer 2 and the base fabric layer 1.

[0039] In this embodiment, the reinforcement layer 3 is composed of a polyester fiber yarn layer 4, an aluminum alloy mesh 5 and a polytetrafluoroethylene nanoparticle layer 6, which provides enhanced protection for the upper and lower sides. The aluminum alloy meshes 5 of the two reinforcement layers 3 are connected by aluminum alloy wires 7, further improving the overall strength.

[0040] More specifically, the antistatic layer 2 provides antistatic protection for the whole, improving the conductive performance.

[0041] Please refer to Figure 3 , as an embodiment of the conductive strip 8: conductive strips 8 are provided between the two antistatic layers 2, there are two conductive strips 8 arranged symmetrically, and the two conductive strips 8 both penetrate through the base fabric layer 1.

[0042] Specifically, the conductive strip 8 connects the two antistatic layers 2 to further improve the conductive effect.

[0043] Please refer to Figure 2 , as an implementation of high temperature resistance and fire protection: high temperature resistant layers 9 are provided at the outer ends of both sides of the two reinforcing layers 3, fire protection layers 10 are provided between the two high temperature resistant layers 9 and the reinforcing layers 3, and antibacterial layers 11 are provided at the outer ends of both sides of the two high temperature resistant layers 9.

[0044] Specifically, the high temperature resistant layer 9 is preferably made of polyarylate material, the fire protection layer 10 is preferably made of ceramic coating to ensure the heat insulation and fire protection effect, and the antibacterial layer 11 is preferably made of silver ion fiber material.

[0045] Please refer to Figure 1 and Figure 2 , as an implementation of adsorption: adsorption layers 12 are provided at the outer ends of both sides of the two antibacterial layers 11, and grooves 13 are formed at the outer ends of the two adsorption layers 12, and a plurality of grooves 13 are arranged at intervals.

[0046] Specifically, the adsorption layer 12 with grooves 13 adsorbs and collects external impurities for easy cleaning.

[0047] In summary, when the overall device is in use:

[0048] When in the high-strength protection state, the aluminum alloy meshes 5 are connected by a plurality of aluminum alloy wires 7, and the aluminum alloy meshes 5 cooperate with the polyester fiber yarn layers 4 and polytetrafluoroethylene nanoparticle layers 6 on both sides to strengthen the overall protection.

[0049] When in the antistatic protection state, the antistatic layers 2 on the upper and lower sides of the base fabric layer 1 conduct static electricity protection for the whole, and the two antistatic layers 2 are connected by the conductive strip 8 to further improve the antistatic conductive effect.

[0050] When in the adsorption state, during filtration, the adsorption layer 12 adsorbs impurity particles, etc., and the adsorbed impurity particles, etc. accumulate and collect inside the grooves 13. After a period of time, the adsorption layer 12 with grooves 13 is cleaned.

[0051] The present invention also includes a preparation method of an antistatic high-strength filter material and its preparation method, which is characterized by including the following steps:

[0052] A. Production of warp and weft:

[0053] Using a high-strength fiber filament as the baseline, and then using two other high-strength fiber filaments with a diameter less than or equal to the baseline as the reinforcing wires, and winding the two reinforcing wires around the outside of the baseline (6) in a reverse spiral by a winding machine to form the spare warp and weft.

[0054] B. Weaving of the base fabric layer:

[0055] Weave the above warp and weft threads through a loom. At the same time, cross-intertwine and wind the first locking thread between the warp thread and the corresponding multiple weft threads, and synchronously cross-intertwine and wind the second locking thread between two adjacent groups of the first locking threads. A base cloth layer is formed through the cooperation of the warp thread, the weft thread, the first locking thread, and the second locking thread. Among them, some of the said warp threads can be replaced by conductive fibers;

[0056] C. Cover the inner side of the base cloth layer formed in step B with the wire mesh layer by sewing or gluing;

[0057] D. Then, perform finishing processes such as impregnation treatment, desizing treatment, volatilization treatment, drying treatment, heat setting, etc. on the filter media structure formed in the above step C in sequence, so as to form a polytetrafluoroethylene impregnation treatment layer on the inner side of the wire mesh layer and the outer side of the base cloth layer;

[0058] E. After that, on the basis of step D, introduce the whole into a coating machine for coating processing, and coat the surface of the filter media formed in step D with the pre-prepared polytetrafluoroethylene resin to form a polytetrafluoroethylene coating;

[0059] F. After that, introduce the filter media formed in step E and the polytetrafluoroethylene microporous film into a laminating machine at the same time, and perform surface lamination processing of the polytetrafluoroethylene microporous film. Combine the polytetrafluoroethylene microporous film with the filter media formed in step E by means of high-temperature hot pressing, thereby forming the high-strength filter media described in claim 1.

[0060] In all the above-mentioned solutions, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above involving fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antistatic high-strength filter material, comprising a base fabric layer (1), characterized in that: The base fabric layer (1) is provided with an antistatic layer (2) at both upper and lower ends, and a reinforcement layer (3) is provided at the outer ends of the two antistatic layers (2). The reinforcement layer (3) comprises a polyester fiber yarn layer (4), an aluminum alloy mesh (5) and a polytetrafluoroethylene nanoparticle layer (6). The polyester fiber yarn layer (4) is arranged near the outer end of the antistatic layer (2), the aluminum alloy mesh (5) is arranged at the outer end of the polyester fiber yarn layer (4), and the polytetrafluoroethylene nanoparticle layer (6) is arranged at the outer end of the aluminum alloy mesh (5). An aluminum alloy wire (7) is connected between the two aluminum alloy meshes (5), and a plurality of the aluminum alloy wires (7) are provided. The plurality of aluminum alloy wires (7) penetrate the antistatic layer (2) and the base fabric layer (1).

2. The antistatic high-strength filter material according to claim 1 is characterized in that: A conductive strip (8) is provided between the two antistatic layers (2), two conductive strips (8) are symmetrically provided, and both conductive strips (8) are provided through the base fabric layer (1).

3. The antistatic high-strength filter material according to claim 1 is characterized in that: The outer ends of the two reinforcement layers (3) are both provided with a high temperature resistant layer (9), and a fireproof layer (10) is both provided between the two high temperature resistant layers (9) and the reinforcement layer (3).

4. The antistatic high-strength filter material according to claim 3 is characterized in that: The outer ends of the two high temperature resistant layers (9) are both provided with an antibacterial layer (11).

5. The antistatic high-strength filter material according to claim 4 is characterized in that: The outer ends of the two antibacterial layers (11) are both provided with an adsorption layer (12).

6. The antistatic high-strength filter material according to claim 5 is characterized in that: Grooves (13) are provided at the outer ends of the two adsorption layers (12), and a plurality of the grooves (13) are arranged at intervals.

7. The method for preparing the antistatic high-strength filter material according to claim 6, characterized in that: The following steps are involved: A. Production of warp and weft: A high-strength fiber yarn is used as a base line, and two other high-strength fiber yarns with a diameter less than or equal to that of the base line are used as reinforcing yarns. The two reinforcing yarns are spirally wound around the base line (6) in opposite directions by a winding machine to form spare warp and weft yarns. B. Weaving of base fabric layer (1): The warp and weft threads are woven by a weaving machine, and at the same time, the first locking thread is interlaced and wound between the warp threads and the corresponding plurality of weft threads, and the second locking thread is interlaced and wound between two adjacent groups of first locking threads, and the base fabric layer is formed by the cooperation of the warp threads, the weft threads, the first locking threads and the second locking threads, wherein part of the warp threads can be replaced by conductive fibers; C. Covering the screen layer on the inner side of the base fabric layer formed in step B by sewing or gluing; D. Then, the filter material structure formed in the above step C is sequentially subjected to finishing processes such as impregnation treatment, desizing treatment, volatilization treatment, drying treatment, and heat setting, so that a polytetrafluoroethylene impregnation treatment layer is formed on the inner side of the wire mesh layer and the outer side of the base fabric layer; E. Afterwards, based on step D, the whole is introduced into a coating machine for coating processing, and the pre-prepared polytetrafluoroethylene resin is coated on the surface of the filter material formed in step D to form a polytetrafluoroethylene coating; F. Afterwards, the filter material formed in step E and the polytetrafluoroethylene microporous film are simultaneously introduced into a laminating machine for surface coating with the polytetrafluoroethylene microporous film, and the polytetrafluoroethylene microporous film and the filter material formed in step E are combined together by high-temperature hot pressing to form the high-strength filter material described in claim 1.

8. The method for preparing a composite needle-punched filter material according to claim 7, characterized in that: The coating thickness of the polytetrafluoroethylene coating is 100 μm, the speed is 2 m / min, and the sintering temperature is 200° C.

9. The method for preparing a composite needle-punched filter material according to claim 7, characterized in that: When the polytetrafluoroethylene microporous film is coated, the coating temperature is 200° C., the pressure is 0.3 MPa, and the running speed is 3 m / min.

10. The method for preparing a composite needle-punched filter material according to claim 7, characterized in that The overall sizing amount of the polytetrafluoroethylene impregnation treatment layer is controlled at 10% during the impregnation treatment process, the volatilization treatment temperature is 99°C, the drying temperature is 130°C, and the heat setting temperature is 180°C.

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