CN107158801B - Air filtering material with static electricity and preparation method thereof - Google Patents
Air filtering material with static electricity and preparation method thereof Download PDFInfo
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- CN107158801B CN107158801B CN201710554587.4A CN201710554587A CN107158801B CN 107158801 B CN107158801 B CN 107158801B CN 201710554587 A CN201710554587 A CN 201710554587A CN 107158801 B CN107158801 B CN 107158801B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0435—Electret
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
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Abstract
The invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer. The air filtering material has the advantages of anti-toxin sterilization, high filtering efficiency on micro particles and polar substance particles in the air and the like.
Description
Technical Field
The invention belongs to the technical field of air filtering materials, and particularly relates to an air filtering material with static electricity and a preparation method thereof.
Background
In recent years, with the progress of science and technology and the continuous development of industry, the problem of the quality reduction of ambient air caused by environmental pollution is increasingly serious due to the rapid economic growth. The environmental monitoring center has increased detection strength on PM10 (respirable particles, particles with the diameter less than or equal to 10 micrometers in the atmosphere) and PM2.5 (particles capable of entering lung and particles with the diameter less than or equal to 2.5 micrometers in the atmosphere), and in urban areas such as North China and east China at present, the content of PM2.5 in the atmosphere is seriously exceeded, which causes well-known dust-haze weather and serious harm to human health. PM2.5 particles are carriers with good toxic and harmful substances in the air, and can directly enter human lungs without blockage, so that the incidence of diseases such as lung cancer is greatly increased. Control and protection of PM2.5 is critical to human health and the harmonious development of human society. With the progress of science and technology and the deterioration of ecological environment, bacteria and viruses in life and medicine do not harm human health for a long time. Generally, the diameter of the virus is about 200nm, so that the aim of rationalization is difficult to achieve by adopting a pure air filtering material for filtering, and therefore, the development of antibacterial and antivirus materials is necessary to solve the harm of bacteria and virus to human beings. The antibacterial agent is attached to the fiber filter material by a specific method, and is combined with bacteria and viruses in the air in the filtering process to achieve the purpose of killing the germs and protecting the health of human beings. Air filtration articles such as masks, air filters, gas masks, and the like are increasingly gaining importance in maintaining human green life and physical health. The air filtering material must have the functions of intercepting solid harmful substances in the air or generating adsorption reaction with the solid harmful substances, and the like, so that the purposes of purifying the air and ensuring the health of human beings can be achieved. At present, daily and medical air filtering materials in the market, such as masks, face masks, protective clothing and the like, are mostly made of non-woven fabrics, and most of the materials do not have good antibacterial performance. Although the material has the advantages of simple production process, mass production and the like, the material is generally hard and rough in texture, has low filtering efficiency on smaller particles in the air, lacks functions of resisting virus, sterilizing and the like, has poor filtering capability on oily substances which are difficult to filter in daily life of human beings, and cannot well protect the health of human beings in severe environment.
The applicant discloses in chinese patent application No. 2004100167006 a filter material which, although having a good filtering performance, has some disadvantages, and is not perfect for filtering some polar substances, and needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an air filtering material with static electricity and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer.
According to the air filter material with static electricity, the nano magnetic particles are Fe with the particle size of 600-1000nm3O4And (3) powder.
According to the air filter material with static electricity, the antibacterial material layer is prepared from the following raw materials in parts by weight: 10-20 parts of polyacrylonitrile, 0.3-1 part of natural calcium carbide micro powder, 5-10 parts of silver oxide ions and 0.05-0.08 part of sodium dodecyl benzene sulfonate.
According to the air filter material with static electricity, the antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 18, natural calcium carbide micropowder 0.7, silver oxide ions 8 and sodium dodecyl benzene sulfonate 0.06.
The preparation method of the air filter material with static electricity comprises the following steps:
(1) preparing an antibacterial material layer: a. mixing polyacrylonitrile, natural calcium carbide micro powder and silver oxide ions according to the proportion, uniformly stirring, adding sodium dodecyl benzene sulfonate in a formula amount into the mixture, uniformly stirring, and heating to 190-200 ℃ to melt the mixture; b. melting and extruding the melted materials under the action of a screw extruder, spraying the melted materials through a spinneret plate, performing deep electrostatic finishing on the sprayed fibers by using 60-80 KV voltage, and preparing the antibacterial material layer by using air flow or mechanical net forming; the deep electrostatic finishing is to perform electret finishing on the sprayed fibers, specifically, the filter materials are finished by a corona discharge method or an electric breakdown polarization method, the electret voltage is 60-70 KV, and the electret distance is 10-20 cm;
(2) coating a lower fiber adhesive on the upper surface of the non-woven fabric support layer, then scattering a layer of nano magnetic particles on the surface of the lower fiber adhesive, then coating an upper fiber adhesive on the upper surface of the nano magnetic particles, and compounding an antibacterial material layer on the upper surface of the upper fiber adhesive.
Compared with the prior art, the invention has the following beneficial effects:
1. the product can effectively improve the filtering efficiency of the material, so that the high-efficiency filtering problem of a filter can be realized, the preparation method can be used for producing the air filtering material which is recyclable, high-efficiency, low-resistance, antibacterial and anti-haze, the filtering efficiency is more than or equal to 99.9 percent, and the resistance is less than or equal to 35 Pa.
2. The polyacrylonitrile in the product has outstanding hydrophobicity and dielectric property, and is an excellent space charge electret, and the deep electrostatic finishing can form an effective trap source for capturing charges, so that the charge storage capacity and the charge stability of the filter material can be effectively improved.
3. The nano magnetic particles in the material have adsorbability, and can adsorb polar particles in air, so that the filter material has large dust absorption amount and high filter effect.
Detailed Description
The following examples are intended to illustrate the present invention in detail, but the present invention is not limited thereto.
Example 1:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 600-1000nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 10-20 parts of polyacrylonitrile, 0.3-1 part of natural calcium carbide micro powder, 5-10 parts of silver oxide ions and 0.05-0.08 part of sodium dodecyl benzene sulfonate.
The preparation method of the air filter material with static electricity comprises the following steps:
(1) preparing an antibacterial material layer: a. mixing polyacrylonitrile, natural calcium carbide micro powder and silver oxide ions according to the proportion, uniformly stirring, adding sodium dodecyl benzene sulfonate in a formula amount into the mixture, uniformly stirring, and heating to 190-200 ℃ to melt the mixture; b. melting and extruding the melted materials under the action of a screw extruder, spraying the melted materials through a spinneret plate, performing deep electrostatic finishing on the sprayed fibers by using 60-80 KV voltage, and preparing the antibacterial material layer by using air flow or mechanical net forming; the deep electrostatic finishing is to perform electret finishing on the sprayed fibers, specifically, the filter materials are finished by a corona discharge method or an electric breakdown polarization method, the electret voltage is 60-70 KV, and the electret distance is 10-20 cm;
(2) coating a lower fiber adhesive on the upper surface of the non-woven fabric support layer, then scattering a layer of nano magnetic particles on the surface of the lower fiber adhesive, then coating an upper fiber adhesive on the upper surface of the nano magnetic particles, and compounding an antibacterial material layer on the upper surface of the upper fiber adhesive.
Example 2:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 18, natural calcium carbide micropowder 0.7, silver oxide ions 8 and sodium dodecyl benzene sulfonate 0.06.
The preparation method of this example is the same as example 1.
Example 3:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the upper surface of the non-woven fabric supporting layer is provided with a lower fiberThe surface of the lower fiber adhesive layer is provided with a layer of nano magnetic particles, the upper surface of the nano magnetic particles is provided with an upper fiber adhesive layer, and the upper surface of the upper fiber adhesive layer is compounded with an antibacterial material layer; the nano magnetic particles are Fe with the particle size of 600nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 10 parts of polyacrylonitrile, 1 part of natural calcium carbide micropowder, 5 parts of silver oxide ions and 0.08 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 4:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 700nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 12 portions of polyacrylonitrile, 0.9 portion of natural calcium carbide micropowder, 6 portions of silver oxide ions and 0.07 portion of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 5:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polypropyleneNitrile 14, natural calcium carbide micropowder 0.8, silver oxide ions 7 and sodium dodecyl benzene sulfonate 0.075.
The preparation method of this example is the same as example 1.
Example 6:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 15 parts of polyacrylonitrile, 0.7 part of natural calcium carbide micropowder, 8 parts of silver oxide ions and 0.065 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 7:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 16 parts of polyacrylonitrile, 0.6 part of natural calcium carbide micropowder, 9 parts of silver oxide ions and 0.06 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 8:
the invention provides an air filtering material with static electricity, which is composed of a non-woven fabric supporting layer and a lower layerThe fiber adhesive layer, the nano magnetic particles, the upper fiber adhesive layer and the antibacterial material are compounded layer by layer, the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, the nano magnetic particles are arranged on the surface of the lower fiber adhesive, the upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and the antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 1000nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 18 parts of polyacrylonitrile, 0.5 part of natural calcium carbide micropowder, 10 parts of silver oxide ions and 0.055 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 9:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 19 parts of polyacrylonitrile, 0.4 part of natural calcium carbide micropowder, 6 parts of silver oxide ions and 0.06 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 10:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layerA material layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 17, natural calcium carbide micropowder 0.4, silver oxide ions 6 and sodium dodecyl benzene sulfonate 0.05.
The preparation method of this example is the same as example 1.
Example 11:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 18, natural calcium carbide micropowder 0.3, silver oxide ions 7 and sodium dodecyl benzene sulfonate 0.06.
The preparation method of this example is the same as example 1.
Example 12:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 17, natural calcium carbide micropowder 0.5, silver oxide ions 8 and sodium dodecyl benzene sulfonate 0.06.
The preparation method of this example is the same as example 1.
Example 13:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 20, natural calcium carbide micropowder 0.5, silver oxide ions 6 and sodium dodecyl benzene sulfonate 0.07.
The preparation method of this example is the same as example 1.
Example 14:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 18, natural calcium carbide micropowder 0.6, silver oxide ions 6 and sodium dodecyl benzene sulfonate 0.07.
The preparation method of this example is the same as example 1.
Example 15:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, and the surface of the lower fiber adhesive isThe antibacterial fabric is provided with a layer of nano magnetic particles, an upper fiber adhesive layer is arranged on the upper surfaces of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 1000nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 16 parts of polyacrylonitrile, 0.5 part of natural calcium carbide micropowder, 8 parts of silver oxide ions and 0.07 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 16:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: 19 parts of polyacrylonitrile, 0.5 part of natural calcium carbide micropowder, 6 parts of silver oxide ions and 0.07 part of sodium dodecyl benzene sulfonate.
The preparation method of this example is the same as example 1.
Example 17:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 800nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 16, natural calcium carbide micropowder 0.5, oxidationSilver ion 6 and sodium dodecylbenzenesulfonate 0.06.
The preparation method of this example is the same as example 1.
Example 18:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 900nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 18, natural calcium carbide micropowder 0.6, silver oxide ions 8 and sodium dodecyl benzene sulfonate 0.06.
The preparation method of this example is the same as example 1.
Example 19:
the invention provides an air filtering material with static electricity, which is formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 1000nm3O4The antibacterial material layer is prepared from the following raw materials in parts by weight: polyacrylonitrile 20, natural calcium carbide micropowder 0.3, silver oxide ions 10 and sodium dodecyl benzene sulfonate 0.05.
The preparation method of this example is the same as example 1.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. An air filtering material with static electricity is characterized by being formed by compounding a non-woven fabric supporting layer, a lower fiber adhesive layer, nano magnetic particles, an upper fiber adhesive layer and an antibacterial material layer by layer, wherein the lower fiber adhesive is arranged on the upper surface of the non-woven fabric supporting layer, a layer of nano magnetic particles is arranged on the surface of the lower fiber adhesive, an upper fiber adhesive layer is arranged on the upper surface of the nano magnetic particles, and an antibacterial material layer is compounded on the upper surface of the upper fiber adhesive layer; the nano magnetic particles are Fe with the particle size of 600-1000nm3O4Powder;
the preparation method of the antibacterial material layer comprises the following steps: a. taking materials according to the following weight portion: 18 parts of polyacrylonitrile, 0.7 part of natural calcium carbide micro powder, 8 parts of silver oxide ions and 0.06 part of sodium dodecyl benzene sulfonate, mixing the polyacrylonitrile, the natural calcium carbide micro powder and the silver oxide ions, stirring uniformly, adding the sodium dodecyl benzene sulfonate with the formula amount into the mixture, stirring uniformly, and heating to 190-200 ℃ to melt the mixture; b. melting and extruding the melted materials under the action of a screw extruder, spraying the melted materials through a spinneret plate, performing deep electrostatic finishing on the sprayed fibers by using 60-80 KV voltage, and preparing the antibacterial material layer by using air flow or mechanical net forming; and the deep electrostatic finishing is to perform electret finishing on the sprayed fibers, specifically, the filtering materials are finished by a corona discharge method or an electric breakdown polarization method, the electret voltage is 60-70 KV, and the electret distance is 10-20 cm.
2. The method for preparing an air filter material with static electricity according to claim 1, characterized in that it comprises the following steps:
preparing an antibacterial material layer;
coating a lower fiber adhesive on the upper surface of the non-woven fabric support layer, then scattering a layer of nano magnetic particles on the surface of the lower fiber adhesive, then coating an upper fiber adhesive on the upper surface of the nano magnetic particles, and compounding an antibacterial material layer on the upper surface of the upper fiber adhesive.
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| CN111926560B (en) * | 2020-07-21 | 2023-08-18 | 上海弘睿生物科技有限公司 | Polymer fiber product with rejection separation structure and preparation method thereof |
| CN112191025A (en) * | 2020-09-29 | 2021-01-08 | 南通大学 | Individual protection filter material capable of being sterilized under driving of sunlight and preparation method |
| CN113244697B (en) * | 2021-05-19 | 2022-10-25 | 武汉纺织大学 | Melt-blown high-efficiency air filter material with multiple physical field effects and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872381A (en) * | 2006-04-29 | 2006-12-06 | 上海恒泓家电配件有限公司 | Air filtration material with static, and preparation method |
| CN101332385A (en) * | 2008-07-30 | 2008-12-31 | 烟台宝源净化有限公司 | Filter material |
| CN102302875A (en) * | 2011-07-27 | 2012-01-04 | 东华大学 | Method for preparing antibacterial air-filtering membrane |
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| CN100422405C (en) * | 2005-07-05 | 2008-10-01 | 中国石化仪征化纤股份有限公司 | Method for producing antibacterial polylactic acid fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1872381A (en) * | 2006-04-29 | 2006-12-06 | 上海恒泓家电配件有限公司 | Air filtration material with static, and preparation method |
| CN101332385A (en) * | 2008-07-30 | 2008-12-31 | 烟台宝源净化有限公司 | Filter material |
| CN102302875A (en) * | 2011-07-27 | 2012-01-04 | 东华大学 | Method for preparing antibacterial air-filtering membrane |
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