CN213322147U

CN213322147U - Electrostatic framework filter material structure

Info

Publication number: CN213322147U
Application number: CN201921846905.5U
Authority: CN
Inventors: 颜一旭
Original assignee: DONGGUAN RETOP FILTER MATERIAL CO LTD
Current assignee: DONGGUAN RETOP FILTER MATERIAL CO LTD
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2021-06-01
Anticipated expiration: 2029-10-30

Abstract

The utility model provides an electrostatic skeleton filter material structure, which comprises a PET non-woven fabric layer, a water absorption layer and an electrified melt-blown fiber layer from top to bottom in sequence, wherein the PET non-woven fabric layer covers the upper surface of the water absorption layer; the melt-blown fiber layer covers the bottom of the water absorption layer; the fibers of the charged melt-blown fiber layer are in a three-dimensional structure, and the fiber surface of the charged melt-blown fiber layer is uniformly provided with bulges; the layer that absorbs water comprises multilayer macromolecular water-absorbing resin fibrous layer, and every layer of macromolecular water-absorbing resin fibrous layer is formed by horizontal cellosilk and the staggered arrangement of vertical cellosilk that macromolecular water-absorbing resin made by macromolecular water-absorbing resin, and this application has better waterproof performance, can combine more electric charge amount, and adsorption efficiency is strong, filtration efficiency is high, characteristics such as resistance low.

Description

Electrostatic framework filter material structure

Technical Field

The utility model relates to a non-woven fabrics, concretely relates to static skeleton filter media structure.

Background

In the prior art, the traditional filter material can only block particles with larger particle size, and the research on the performance of the filter material, such as filtration efficiency, deformation resistance, waterproof performance and the like, is not deep enough, so that how to improve the filtration efficiency, deformation resistance and waterproof performance of the filter material becomes the key point of research of people.

Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide an electrostatic skeleton filter media structure to solve among the prior art how to improve the filter media filtration efficiency, anti deformability and waterproof performance's problem.

The utility model is realized in such a way that the electrostatic framework filter material structure sequentially comprises a PET non-woven fabric layer, a water absorption layer and an electrified melt-blown fiber layer from top to bottom, wherein the PET non-woven fabric layer covers the upper surface of the water absorption layer; the melt-blown fiber layer covers the bottom of the water absorption layer; the fibers of the charged melt-blown fiber layer are in a three-dimensional net structure, and the fiber surface of the charged melt-blown fiber layer is uniformly provided with protrusions; the water absorption layer is composed of a plurality of polymer water absorption resin fiber layers, and each polymer water absorption resin fiber layer is formed by arranging transverse fiber yarns and longitudinal fiber yarns which are made of polymer water absorption resin in a staggered mode.

Preferably, the fiber surfaces of the charged meltblown fiber layer are electrostatically charged.

Preferably, the meltblown fiber layer is a modified transparent polypropylene.

Preferably, the water absorbing layer consists of three high molecular water absorbing resin fiber layers.

Preferably, the thickness of the PET non-woven layer is 1.5-1.7 mm.

Preferably, the layer of electrically charged meltblown fibers has a thickness of 0.5 to 0.7 mm.

The utility model discloses a technical effect of static skeleton filter media structure does:

1. the principle of modified filter media structure as the filter media in this application is: the dust floating in the air is in a strong negative ion field due to a lot of negative ions in the air, and the dust or other particles are captured by the positive charges of the filter material in a mode of filling the filter material with the positive charges, and the positive charges of the filter material and the negative charges of the dust are attracted by coulomb force under the action of an electric field, so that the particles are captured by the non-woven fabric filter material. The modified filter material structure adopts modified transparent polypropylene to replace polypropylene as a material of a melt-blown fiber layer for spray melting, and then performs electret treatment to enable the fiber diameter of the melt-blown fiber layer to be 2-5 mu m and cover the PET non-woven fabric layer, so that the strength of the modified filter material structure is improved.

2. Modified transparent polypropylene in this application is through the electret after handling, and its surface is evenly piled up there is the arch, and the area of fibre static electrification in the increase melt-blown fiber layer, in the same filter area, static content increases on the fibre, and its adsorption efficiency is stronger, further improves the adsorption efficiency who melts the melt-blown fiber layer.

3. The utility model provides a layer that absorbs water adopts the polymer more than the three-layer to absorb water the resin fiber layer and can stably keep the water absorbing capacity on layer and the pulling force elasticity of product that absorb water.

Drawings

FIG. 1: the utility model discloses an overall structure schematic diagram of an electrostatic skeleton filter material structure;

FIG. 2: the structure schematic diagram of the water absorbing layer in the electrostatic skeleton filter material structure of the utility model;

FIG. 3: the utility model discloses a surface potential decay speed schematic diagram after electret treatment of modified transparent polypropylene and polypropylene in static skeleton filter media structure.

Drawing symbol

10-PET non-woven fabric layer, 20-water absorption layer, 30-charged melt-blown fiber layer, 21-high molecular water-absorbent resin fiber layer 21.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is 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 of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1, in order to provide an embodiment of the present invention, an electrostatic skeleton filter material structure in the embodiment is suitable for adsorbing and filtering small floating dust particles in the surrounding environment, the electrostatic skeleton filter material structure in the embodiment sequentially includes, from top to bottom, a PET nonwoven fabric layer 10, a water absorbing layer 20, and an electrically-charged melt-blown fiber layer 30, and each component of the modified filter material structure is further described below:

referring to fig. 1 to 3, a PET non-woven fabric layer 10 covers an upper surface of a water-absorbing layer 20; the melt-blown fiber layer covers the bottom of the water absorption layer 20; the fibers of the charged melt-blown fiber layer 30 are in a three-dimensional structure, and the three-dimensional structure greatly improves the probability of interception caused by collision between particles and fibers in filtration; the fiber surface of the charged melt-blown fiber layer 30 is uniformly provided with protrusions; the water absorbing layer 20 is composed of a plurality of polymer water absorbing resin fiber layers 21, and each polymer water absorbing resin fiber layer 21 is formed by arranging transverse fiber yarns and longitudinal fiber yarns made of polymer water absorbing resin in a staggered mode.

Further, the fiber surfaces of the charged meltblown fiber layer 30 are electrostatically charged. The surface of the modified transparent polypropylene is charged after the modified transparent polypropylene passes through the electret. The coulomb force generated by the charge greatly improves the filtering efficiency of the filter material. Moreover, the fibrous surface of area electric smelting spouts fibrous layer 30 in this application evenly is equipped with the arch, and polypropylene macromolecule chain fracture when electret handles, and the broken chain piles up at the fibrous surface and forms this arch, and the area that fibre static was taken in the increase melt-blown fibrous layer, and in fixed filter area, fibrous surface potential is higher more, and its adsorption efficiency is stronger more.

Further, the layer of electrically charged meltblown fibers 30 is a modified transparent polypropylene. As shown in fig. 3, the modified transparent polypropylene is used as the material of the charged meltblown fiber layer 30, so that more charges are combined on the surface of the charged meltblown fiber layer 30 after the electret treatment, and therefore, the surface potential decay speed of the material of the modified transparent polypropylene as the charged meltblown fiber layer 30 is slower than that of the common polypropylene as the material of the charged meltblown fiber layer 30. Obviously, the modified transparent polypropylene is adopted to replace polypropylene to be used as the material of the melt-blown fiber layer for melt-blowing, so that superfine fibers with the diameter of 2-5 microns are formed, the strength of the filter material structure is improved, and the filtering efficiency of the filter material is also improved.

Further, the water-absorbent layer 20 is composed of three layers of polymeric water-absorbent resin fiber layers 21. The utility model provides a layer 20 that absorbs water adopts the polymer more than the three-layer to absorb water resin fiber layer 21 can stably keep the water absorbing capacity of layer 20 that absorbs water and the pulling force elasticity of product.

Further, the thickness of the PET nonwoven fabric layer 10 is 1.5 to 1.7mm, and the thickness of the PET nonwoven fabric layer 10 in this embodiment is preferably 0.7 mm.

Further, the thickness of the charged meltblown fiber layer 30 is 0.5-0.7mm, and the thickness of the charged meltblown fiber layer 30 in this embodiment is preferably 0.7 mm.

It is to be noted that the formula of coulomb force in the present embodiment is F ═ K (Q1Q2)/r2, where: q1 and Q2 are the charge amounts of the two objects, respectively, r is the distance between the two objects (centers), and k is a constant.

The above description is only for the preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shape, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electrostatic skeleton filter media structure which characterized in that: the water-absorbing fabric sequentially comprises a PET non-woven fabric layer, a water-absorbing layer and an electrified melt-blown fiber layer from top to bottom, wherein the PET non-woven fabric layer covers the upper surface of the water-absorbing layer; the charged melt-blown fiber layer covers the bottom of the water absorption layer; the fibers of the charged melt-blown fiber layer are in a three-dimensional structure, and protrusions are uniformly arranged on the surfaces of the fibers of the charged melt-blown fiber layer; the water absorption layer is composed of a plurality of polymer water absorption resin fiber layers, and each polymer water absorption resin fiber layer is formed by arranging transverse fiber yarns and longitudinal fiber yarns which are made of polymer water absorption resin in a staggered mode.

2. The electrostatic skeleton filter structure according to claim 1, wherein: the fiber surfaces of the charged meltblown fiber layer are electrostatically charged.

3. The electrostatic skeleton filter structure according to claim 1, wherein: the melt-blown fiber layer is made of modified transparent polypropylene.

4. The electrostatic skeleton filter structure according to claim 1, wherein: the water absorbing layer consists of three high molecular water absorbing resin fiber layers.

5. The electrostatic skeleton filter structure according to claim 1, wherein: the thickness of the PET non-woven fabric layer is 1.5-1.7 mm.

6. The electrostatic skeleton filter structure according to claim 1, wherein: the thickness of the charged meltblown fiber layer is 0.5-0.7 mm.