Ultrafiltration membrane structure with multi-gradient porous structure

Abstract

The utility model relates to the field of ultrafiltration membranes, and discloses a multi-gradient porous structure ultrafiltration membrane structure which comprises a surface layer, the filtering layer is arranged at the bottom of the surface layer; the flow guide layer is arranged at the bottom of the filter layer; the absorption layer is arranged at the bottom of the flow guide layer; the supporting layer is arranged at the bottom of the absorbing layer; the breathable layer is arranged at the bottom of the supporting layer; the bottom layer is arranged at the bottom of the breathable layer. The absorption layer comprises an absorption layer I arranged at the bottom of the flow guide layer; the absorption layer and the absorbent cotton are high in water absorption, so that a large amount of water can be absorbed in a short time, good air permeability and comfort are achieved, sweat and water can be rapidly removed, and the body is kept dry and comfortable; meanwhile, the fluff pulp is paper pulp used as a water absorbing medium, is mainly prepared from wood pulp and straw pulp which are subjected to bleaching, extraction of organic solvent extract and the like, and has relatively long fibers, and the strength of the fibers is relatively good.

Description

Technical Field

[0001] The utility model relates to the field of ultrafiltration membranes, in particular to an ultrafiltration membrane structure with a multi-gradient porous structure. Background Art

[0002] Artificial permeable membrane used in ultrafiltration process. Generally made of polymer materials such as cellulose acetate, cellulose acetate ester, polyethylene, polysulfone and polyamide. Generally made into various types of membrane components such as tubular, plate, roll, capillary, etc., and then assembled together to increase the filtration area and facilitate maintenance.

[0003] Some of the current ultrafiltration membranes are suitable for sanitary napkins and diapers, and play a certain auxiliary role in the water-absorbing core. However, the current core does not absorb water well, which leads to liquid overflow and makes it impossible to control the direction of the liquid. Utility Model Content

[0004] The utility model aims to provide an ultrafiltration membrane structure with a multi-gradient porous structure, so as to achieve the purpose of solving the above-mentioned background technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-gradient porous structure ultrafiltration membrane structure, comprising: a surface layer; a filtration layer, arranged at the bottom of the surface layer; a guide layer, arranged at the bottom of the filtration layer; an absorption layer, arranged at the bottom of the guide layer; a support layer, arranged at the bottom of the absorption layer; a breathable layer, arranged at the bottom of the support layer; and a bottom layer, arranged at the bottom of the breathable layer.

[0006] Preferably, the absorption layer includes: absorption layer one, arranged at the bottom of the guide layer; absorption layer two, arranged at the bottom of absorption layer one; absorption layer three, arranged at the bottom of absorption layer two; absorption layer four, arranged at the bottom of absorption layer three.

[0007] Preferably, the first absorption layer is made of a water-absorbent cotton material, the second absorption layer is made of a fluff pulp material, the third absorption layer is made of a non-woven fabric material, and the fourth absorption layer is made of a polymer resin material.

[0008] Preferably, the surface layer is made of a dry cotton material, the filter layer is made of an ultrafiltration membrane material, the guide layer is made of a guide non-woven fabric material, the support layer is made of a PE membrane material, the breathable layer is made of a polyethylene microporous membrane material, and the bottom layer is made of PE membrane and non-woven fabric material.

[0009] The utility model provides a multi-gradient porous structure ultrafiltration membrane structure. It has the following beneficial effects:

[0010] (1) The utility model has an absorbent layer, and the absorbent cotton has strong water absorption, can absorb a large amount of water in a short time, has good air permeability and comfort, can quickly remove sweat and water, and keep the body dry and comfortable; at the same time, fluff pulp is a kind of pulp used as a water-absorbing medium. It is mainly made of wood pulp and straw pulp after bleaching and extraction of organic solvent extracts. It has longer fibers and the fiber itself has good strength.

[0011] (2) The non-woven fabric of the utility model has many excellent properties through the absorption layer, such as moisture-proof, breathable, flexible, thin, flame-retardant, non-toxic and tasteless, low price, recyclable, etc.; and the polymer resin material is a kind of polymer material with high molecular weight and composed of repeating units, with excellent physical and chemical properties, and is widely used in various fields. This material is processed and has a complex molecular structure, and has multiple properties such as plasticity, strength, corrosion resistance, electrical insulation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the main schematic diagram of the overall structure of the utility model.

[0013] In the figure: 1 surface layer, 2 filter layer, 3 guide layer, 4 absorption layer, 5 support layer, 6 breathable layer, 7 bottom layer;

[0014] 411 absorption layer one, 412 absorption layer two, 413 absorption layer three, 414 absorption layer four. DETAILED DESCRIPTION

[0015] 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.

[0016] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] Example 1

[0018] A preferred embodiment of a multi-gradient porous structure ultrafiltration membrane structure provided by the utility model is as follows Figure 1 As shown: a multi-gradient porous structure ultrafiltration membrane structure, comprising: a surface layer 1; a filter layer 2, arranged at the bottom of the surface layer 1; a guide layer 3, arranged at the bottom of the filter layer 2; an absorption layer 4, arranged at the bottom of the guide layer 3; a support layer 5, arranged at the bottom of the absorption layer 4; a breathable layer 6, arranged at the bottom of the support layer 5; and a bottom layer 7, arranged at the bottom of the breathable layer 6.

[0019] The absorption layer 4 includes: absorption layer 1 411, arranged at the bottom of the guide layer 3; absorption layer 2 412, arranged at the bottom of the absorption layer 1 411; absorption layer 3 413, arranged at the bottom of the absorption layer 2 412; and absorption layer 4 414, arranged at the bottom of the absorption layer 3 413.

[0020] The absorption layer 1 411 is made of a water-absorbent cotton material, the absorption layer 2 412 is made of a fluff pulp material, the absorption layer 3 413 is made of a non-woven fabric material, and the absorption layer 4 414 is made of a polymer resin material.

[0021] The surface layer 1 is made of a dry cotton material, the filter layer 2 is made of an ultrafiltration membrane material, the guide layer 3 is made of a guide non-woven fabric material, the support layer 5 is made of a PE membrane material, the air permeable layer 6 is made of a polyethylene microporous membrane material, and the bottom layer 7 is made of PE membrane and non-woven fabric material.

[0022] Furthermore, in this embodiment, the surface layer 1 directly receives and transfers the liquid. The surface layer 1 has high requirements on the material, has a soft hand feel, and has a good skin-friendly feel. Then the liquid passes through the filter layer 2 to filter the impurities inside the liquid, and then the received liquid is transferred to the absorption layer 4 through the guide layer 3 for storage and rapid transfer. Under the action of several absorption layers 4, the liquid is gradually diluted. However, the support layer 5 serves to support the liquid inside the absorption layer 4 and prevent it from collapsing. The breathable layer 6 thus has the effect of air circulation for the whole, and the bottom layer 7 serves the purpose of fixing the offset of the whole.

[0023] When in use, first, the surface layer 1 directly receives and transfers the liquid. The surface layer 1 has high requirements on the material, and it has a soft feel and a good skin-friendly feel. Then the liquid passes through the filter layer 2 to filter the impurities inside the liquid, and then the received liquid is transmitted to the absorption layer 4 through the guide layer 3 for storage and rapid transmission. Under the action of several absorption layers 4, the liquid is gradually diluted. However, the support layer 5 serves to support the liquid inside the absorption layer 4 and prevent it from collapsing. The breathable layer 6 thus has the effect of air circulation for the whole, and the bottom layer 7 serves the purpose of fixing the offset of the whole.

[0024] 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.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-gradient porous structure ultrafiltration membrane structure, characterized in that: include: Surface layer (1); A filter layer (2) is arranged at the bottom of the surface layer (1); A flow-guiding layer (3) is arranged at the bottom of the filter layer (2); An absorption layer (4) is arranged at the bottom of the guide layer (3); A support layer (5) is arranged at the bottom of the absorption layer (4); A breathable layer (6) is arranged at the bottom of the support layer (5); The bottom layer (7) is arranged at the bottom of the breathable layer (6).

2. The multi-gradient porous structure ultrafiltration membrane structure according to claim 1, characterized in that: The absorption layer (4) comprises: An absorption layer 1 (411) is arranged at the bottom of the guide layer (3); The second absorption layer (412) is disposed at the bottom of the first absorption layer (411); The third absorption layer (413) is disposed at the bottom of the second absorption layer (412); The absorption layer four (414) is arranged at the bottom of the absorption layer three (413).

3. The multi-gradient porous structure ultrafiltration membrane structure according to claim 2, characterized in that: The absorption layer 1 (411) is made of a water-absorbent cotton material, the absorption layer 2 (412) is made of a fluff pulp material, the absorption layer 3 (413) is made of a non-woven fabric material, and the absorption layer 4 (414) is made of a polymer resin material.

4. The multi-gradient porous structure ultrafiltration membrane structure according to claim 1, characterized in that: The surface layer (1) is made of a dry cotton material, the filter layer (2) is made of an ultrafiltration membrane material, the flow-guiding layer (3) is made of a flow-guiding non-woven fabric material, the support layer (5) is made of a PE membrane material, the air-permeable layer (6) is made of a polyethylene microporous membrane material, and the bottom layer (7) is made of a PE membrane and a non-woven fabric material.

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