Film-coated polyphenylene sulfide filter material

Abstract

The utility model relates to a film-coated polyphenylene sulfide filter material, which belongs to the field of filter materials and comprises a substrate, filter assemblies for combined filtration are arranged on the upper side and the lower side of the substrate, and protective assemblies for improving protective filtration precision are arranged on the upper surfaces of the filter assemblies. According to the film-coated polyphenylene sulfide filtering material, the filtering assemblies and the protection assemblies are arranged, the base is a supporting structure of the whole filtering material and plays a role in providing mechanical strength and stability, the filtering assemblies are located on the upper side and the lower side of the base and used for conducting filtering operation, each filtering assembly is composed of a top film coating layer and a bottom film coating layer, and the filtering assemblies and the base are bonded together; the film layers are usually made of polyphenylene sulfide, provide a filtering function and help to prevent particles from passing through, the protection mechanism is located on the upper surface of the filtering assembly and used for improving the protection filtering precision, and the film-coated polyphenylene sulfide filtering material can achieve excellent filtering and anti-static functions and has efficient, stable and reliable filtering performance.

Description

Technical Field

[0001] The utility model relates to the technical field of filter materials, in particular to a film-coated polyphenylene sulfide filter material. Background Art

[0002] Coated polyphenylene sulfide filter material is a special material used to filter and separate solid particles or other impurities in fluids. Coated polyphenylene sulfide filter material has many advantages. First of all, polyphenylene sulfide has good chemical stability and high temperature resistance. It can be used in various acid and alkali environments and can withstand operations under high temperature conditions. Polyphenylene sulfide is abbreviated as PPS in English. It is a new type of high-performance thermoplastic resin. It is widely used in electronics, automobiles, machinery and chemical industries. The full name of polyphenylene sulfide is polyphenylene sulfide. It is a thermoplastic resin with phenylthio groups in the main chain of the molecule. Polyphenylene sulfide is a crystalline polymer. The unstretched fiber has a large amorphous area (crystallinity is about 5%). Crystallization exotherm occurs at 125°C, and the glass transition temperature is 150°C; the melting point is 281°C. The stretched fiber produces partial crystallization during the stretching process (increased to 30%). If the stretched fiber is heat treated at a temperature of 130-230°C, the crystallinity can be increased to 60-80%.

[0003] For example, a coated composite polyphenylene sulfide needled felt filter bag disclosed in Chinese patent announcement number (CN209092922U) includes a needled felt filter cloth, wherein the filter cloth includes a base cloth layer, a composite fiber layer bonded above and below the base cloth layer by a needle punching machine, wherein the composite fiber layer is made of composite fibers made by blending polyphenylene sulfide fibers and nitrile rubber, and the base cloth layer is a fiber mesh cloth formed by criss-cross arrangement of polyphenylene sulfide fibers. The coated composite polyphenylene sulfide needled felt filter bag provided by the utility model can not only effectively filter powder ash and dust, but also has an anti-static effect, so that dust and powder ash are not easily attached to the surface or inner layer of the filter bag, thereby avoiding safety hazards such as explosion of explosive dust.

[0004] However, as in the above patent, there is still a problem of poor coating protection accuracy for the filter material. For example, in the above patent, an antistatic layer is coated on the traditional filter material to avoid static electricity on the surface of the material, thereby adsorbing dust and adhering to the surface of the filter bag. However, this method has poor filtering protection accuracy for the filter material and is not conducive to achieving a more precise filtering effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a film-coated polyphenylene sulfide filter material having the advantages of high film-coating protection accuracy, etc., and solves the problem of poor film-coating protection accuracy for filter materials in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions: a coated polyphenylene sulfide filter material, comprising a substrate, wherein the upper and lower sides of the substrate are provided with filter components for combined filtering, and the upper surface of the filter component is provided with a protective component for improving the protective filtering accuracy;

[0007] The filter assembly comprises a top film layer and a bottom film layer, wherein the top film layer is bonded to the upper surface of the substrate, and the bottom film layer is bonded to the lower surface of the substrate;

[0008] The protective component includes an anti-pollution layer, a filter layer, an anti-adhesion layer and an anti-static layer. The anti-pollution layer is fixed to the upper surface of the top coating layer, the filter layer is fixed to the upper surface of the anti-pollution layer, the anti-adhesion layer is fixed to the lower surface of the bottom coating layer, and the anti-static layer is bonded to the lower surface of the anti-adhesion layer.

[0009] Furthermore, the top coating layer and the bottom coating layer are both polyphenylene sulfide layers.

[0010] Furthermore, the length and width of the top coating layer and the bottom coating layer are respectively equal to the length and width of the substrate.

[0011] Furthermore, the anti-pollution layer is an anti-pollution surface modification coating, and the filter layer is a filter membrane layer.

[0012] Furthermore, the anti-adhesion layer is a polytetrafluoroethylene layer, and the antistatic layer is a conductive polymer composite layer.

[0013] Furthermore, the surfaces of the anti-pollution layer, the filter layer, the anti-adhesion layer and the anti-static layer are all provided with a plurality of filter micropores.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The coated polyphenylene sulfide filter material is provided with a filter component and a protective component. The base is the supporting structure of the entire filter material and plays a role in providing mechanical strength and stability. The filter component is located on the upper and lower sides of the base and is used for filtering operations. It is composed of a top coating layer and a bottom coating layer and is bonded to the base. These coating layers are usually composed of polyphenylene sulfide, which provides a filtering function and helps prevent the passage of particles. The protective mechanism is located on the upper surface of the filter component and is used to improve the protective filtering accuracy. The anti-pollution layer is a surface modified coating located on the upper surface of the top coating layer, which prevents the adhesion of impurities and pollutants, maintains the stability of the filtering accuracy, and filters out unnecessary particles or pollutants at the same time. Through such a structural and layered combination, the coated polyphenylene sulfide filter material can achieve excellent filtering and anti-static functions, and has efficient, stable and reliable filtering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the filter assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the protective component of the utility model.

[0019] In the figure: 1 substrate, 2 filter component, 21 top coating layer, 22 bottom coating layer, 3 protection component, 31 anti-pollution layer, 32 filter layer, 33 anti-adhesion layer, 34 anti-static layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 A coated polyphenylene sulfide filter material in this embodiment includes a substrate 1, and a filter component 2 for combined filtering is provided on the upper and lower sides of the substrate 1, and a protective component 3 for improving the protective filtering accuracy is provided on the upper surface of the filter component 2.

[0022] See also Figure 2 In order to improve the coating stability of the filter material, the filter component 2 in this embodiment includes a top coating layer 21 and a bottom coating layer 22. The substrate 1 is the supporting structure of the entire filter material, which provides mechanical strength and stability. The top coating layer 21 is bonded to the upper surface of the substrate 1, and the bottom coating layer 22 is bonded to the lower surface of the substrate 1. The filter component 2 is located on the upper and lower sides of the substrate 1 for filtering operations.

[0023] In this embodiment, the top coating layer 21 and the bottom coating layer 22 are both polyphenylene sulfide layers, and the length and width of the top coating layer 21 and the bottom coating layer 22 are respectively equal to the length and width of the substrate 1. The top coating layer 21 and the bottom coating layer 22 are composed of the top coating layer 21 and the bottom coating layer 22 and are bonded to the substrate 1. These coating layers are usually composed of polyphenylene sulfide, which provides a filtering function and helps prevent the passage of particles.

[0024] See also Figure 3In order to improve the protective effect of the filter material, the protective component 3 in this embodiment includes an anti-pollution layer 31, a filter layer 32, an anti-adhesion layer 33 and an anti-static layer 34. The anti-pollution layer 31 is fixed to the upper surface of the top film layer 21. The anti-pollution layer 31 is a surface modified coating located on the upper surface of the top film layer 21. Its function is to prevent the adhesion of impurities and pollutants and maintain the stability of the filtering accuracy. The filter layer 32 is fixed to the upper surface of the anti-pollution layer 31, and the anti-adhesion layer 33 is fixed to the lower surface of the bottom film layer 22. The filter layer 32 is located above the anti-pollution layer 31 and is a key layer for actually performing filtering operations. It is usually a filter film layer with precise pore size and filtering accuracy, which can effectively screen out the required particles or pollutants. The anti-static layer 34 is bonded to the lower surface of the anti-adhesion layer 33.

[0025] In this embodiment, the anti-pollution layer 31 is an anti-pollution surface modified coating, the filter layer 32 is a filter film layer, the anti-adhesion layer 33 is a polytetrafluoroethylene layer, the anti-adhesion layer 33 is located on the lower surface of the bottom coating layer 22, and usually adopts a non-adhesive material such as polytetrafluoroethylene, which prevents the adhesion of particles during the filtration process and simplifies cleaning and maintenance. The anti-static layer 34 is a conductive polymer composite layer, and the anti-static layer 34 is located below the anti-adhesion layer 33, and is usually a conductive polymer composite layer. Its function is to avoid the generation and accumulation of static electricity and prevent the influence of static electricity on the filter material and the filter environment. The surfaces of the anti-pollution layer 31, the filter layer 32, the anti-adhesion layer 33 and the anti-static layer 34 are all provided with a plurality of filter micropores, and the plurality of filter micropores provide an effective channel so that the liquid or gas to be filtered flowing through the material can pass through and filter out unnecessary particles or pollutants at the same time.

[0026] The working principle of the above embodiment is:

[0027] When the filter material is used to improve the protective effect of the coating, the substrate 1 is the supporting structure of the entire filter material, which plays a role in providing mechanical strength and stability. The filter component 2 is located on the upper and lower sides of the substrate 1 and is used for filtering operations. It is composed of a top coating layer 21 and a bottom coating layer 22, which are bonded to the substrate 1. These coating layers are usually composed of polyphenylene sulfide, which provides a filtering function and helps prevent the passage of particles. The anti-pollution layer 31 is a surface modified coating located on the upper surface of the top coating layer 21. Its function is to prevent the adhesion of impurities and pollutants and maintain the stability of the filtering accuracy. The filter layer 32 is located above the anti-pollution layer 31 and is actually used for filtering operations. The key layer is usually a filter film layer with precise pore size and filtering accuracy, which can effectively screen out the required particles or pollutants. The anti-adhesion layer 33 is located on the lower surface of the bottom coating layer 22, and is usually made of non-adhesive materials such as polytetrafluoroethylene. It prevents the adhesion of particles during the filtration process and simplifies cleaning and maintenance. The anti-static layer 34 is located below the anti-adhesion layer 33, and is usually a conductive polymer composite layer. Its function is to avoid the generation and accumulation of static electricity and prevent the influence of static electricity on the filter material and the filter environment. A number of filter micropores provide an effective channel to allow the liquid or gas to be filtered through the material and filter out unnecessary particles or pollutants at the same time.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The standard parts used in this application document can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. Therefore, this application document will no longer explain the control method and circuit connection in detail.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A coated polyphenylene sulfide filter material, comprising a substrate (1), characterized in that: The upper and lower sides of the base (1) are provided with filter components (2) for combined filtering, and the upper surface of the filter component (2) is provided with a protective component (3) for improving the protective filtering accuracy; The filter assembly (2) comprises a top film layer (21) and a bottom film layer (22), wherein the top film layer (21) is bonded to the upper surface of the substrate (1), and the bottom film layer (22) is bonded to the lower surface of the substrate (1); The protective component (3) comprises an anti-pollution layer (31), a filter layer (32), an anti-adhesion layer (33) and an anti-static layer (34); the anti-pollution layer (31) is fixed to the upper surface of the top coating layer (21); the filter layer (32) is fixed to the upper surface of the anti-pollution layer (31); the anti-adhesion layer (33) is fixed to the lower surface of the bottom coating layer (22); and the anti-static layer (34) is bonded to the lower surface of the anti-adhesion layer (33).

2. The film-coated polyphenylene sulfide filter material according to claim 1, characterized in that: The top coating layer (21) and the bottom coating layer (22) are both polyphenylene sulfide layers.

3. The film-coated polyphenylene sulfide filter material according to claim 1, characterized in that: The length and width of the top coating layer (21) and the bottom coating layer (22) are respectively equal to the length and width of the substrate (1).

4. The film-coated polyphenylene sulfide filter material according to claim 1, characterized in that: The anti-pollution layer (31) is an anti-pollution surface modified coating, and the filter layer (32) is a filter membrane layer.

5. The film-coated polyphenylene sulfide filter material according to claim 1, characterized in that: The anti-adhesion layer (33) is a polytetrafluoroethylene layer, and the antistatic layer (34) is a conductive polymer composite layer.

6. The film-coated polyphenylene sulfide filter material according to claim 1, characterized in that: The surfaces of the anti-pollution layer (31), the filter layer (32), the anti-adhesion layer (33) and the anti-static layer (34) are all provided with a plurality of filter micropores.

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