CN112411186B - Anti-virus non-woven fabric based on instantaneous pressure release spinning polyolefin and preparation method and application thereof - Google Patents
Anti-virus non-woven fabric based on instantaneous pressure release spinning polyolefin and preparation method and application thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M14/00—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials
- D06M14/18—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation
- D06M14/26—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin
- D06M14/28—Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics, or fibrous goods made from such materials using wave energy or particle radiation on to materials of synthetic origin of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/24—Resistant to mechanical stress, e.g. pierce-proof
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
- D06M11/42—Oxides or hydroxides of copper, silver or gold
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic System; Zincates; Cadmates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/332—Di- or polyamines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/50—Synthetic resins or rubbers
- A41D2500/52—Synthetic resins or rubbers in sheet form
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
Abstract
The invention discloses an antiviral non-woven fabric based on instantaneous pressure release spinning polyolefin, and a preparation method and application thereof, and belongs to the field of surface function modification of polyolefin non-woven fabrics. The invention is based on the surface modification of the instantaneous pressure-release spinning polyolefin non-woven fabric, and comprehensively utilizes the anti-bacterial and anti-virus technology of active oxygen free radicals such as peroxide, hydroxyl free radicals and the like and metal ions to endow the instantaneous pressure-release spinning polyolefin non-woven fabric with good anti-bacterial and anti-virus performance; the preparation method is simple, easy to operate and low in cost, and can be used for batch production; the prepared antiviral non-woven fabric has good wear resistance, high air permeability, high barrier property and good and efficient antiviral activity, has the antiviral activity rate of 99% on H1N1 coronavirus, and can be used for manufacturing product packages, antiviral masks, protective clothing and the like.
Description
Technical Field
The invention belongs to the field of surface function modification of polyolefin non-woven fabrics, and particularly relates to an antiviral non-woven fabric based on instantaneous pressure release spinning polyolefin, and a preparation method and application thereof.
Background
The protection mechanism of general medical safety protection articles (such as common masks and protective clothing) is to block bacteria and viruses, but once the surfaces of the protection articles are infected with viruses and microorganisms, secondary pollution or infection is easily caused in the wearing, using and storing processes, so that the development of the protection articles capable of blocking and killing the viruses is urgently needed.
Chinese patent application No. 202010522717.8 and No. 202010522189.6 disclose a core technology for preparing polyolefin non-woven fabric with wear resistance, air permeability and high barrier property by instantaneous pressure release, the non-woven fabric prepared by the method has a protection effect on pyogenic bacteria, escherichia coli, bacteria and fungi, the total number of bacterial colonies is lower than 20 and far lower than the GB15979-2002 requirement value of 100, and the moisture permeability of a finished product reaches 9170g/(m & lt/m & gt) & lt2D), synthetic blood penetration resistance reaches 4 grades, but no research and development on the antiviral activity of the abrasion-resistant, air-permeable, high-barrier polyolefin nonwoven fabric is carried out.
Disclosure of Invention
The invention aims to provide a preparation method of an antiviral non-woven fabric based on instantaneous pressure-release spinning polyolefin, which aims to solve the problems that the prior art cannot simultaneously meet the requirements of wear resistance, good air permeability, high barrier property and good antiviral activity;
it is another object of the present invention to provide the above instantaneous pressure-release spun polyolefin-based antiviral nonwoven fabric;
it is a further object of the present invention to provide an application of the above described antiviral nonwoven fabric based on instant pressure-release spun polyolefin.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a preparation method of an antiviral non-woven fabric based on instantaneous pressure-release spinning polyolefin comprises the following steps of sequentially carrying out:
s1, grafting carboxyl, amino and epoxy active groups on the surface of an instantaneous pressure-release spinning polyolefin non-woven fabric to obtain a non-woven fabric A;
s2, soaking the non-woven fabric A into a complexing agent aqueous solution, adding a metal salt aqueous solution after soaking, carrying out a complexing reaction, then adding a reducing agent, carrying out a reduction reaction, and then cleaning and drying to obtain the anti-virus non-woven fabric based on the instant pressure-release spinning polyolefin.
In step S1, the instantaneous pressure-release polyolefin nonwoven fabric is made of high-density polyethylene having a melt index of 1 to 20 or polypropylene having a melt index of 20 to 100.
As another limitation of the present invention, in step S1, the surface grafting is radiation grafting, the radiation source is cobalt 60 or electron beam, the radiation energy is 5-25 kGy, and the radiation time is 1-20 minutes.
As a third limitation of the present invention, in step S1, the reactive group source is acrylic acid, glycidyl methacrylate, or ethylenediamine.
As a fourth limitation of the present invention, in step S2, the complexing agent is ethylenediaminetetraacetic acid or hexamethylenetetramine; the mol ratio of the complexing agent to the active group grafted on the surface of the non-woven fabric A is 1-2: 1; the soaking temperature is 40-60 ℃, and the soaking time is 2-4 hours.
As a fifth limitation of the present invention, in step S2, the metal salt is at least one of silver, copper and zinc metal soluble salt, and may be silver nitrate, zinc acetate, zinc chloride, zinc nitrate, zinc sulfate, copper acetate, copper chloride, copper nitrate or copper sulfate; the molar ratio of the metal ions to the complexing agent in the metal salt is 1-2: 1; the complexing reaction time is 0.5-2 hours; the reducing agent is ascorbic acid; the molar ratio of the ascorbic acid to the complexing agent is 1-2: 1.2; the reduction reaction time is 1-2 hours.
As a sixth limitation of the present invention, in step S2, the cleaning uses pure water, preferably ultrapure water; and the drying condition is that the air is blown and dried for 12 to 24 hours at the temperature of 60 ℃.
The invention also provides the antiviral non-woven fabric based on the instant pressure-release spinning polyolefin prepared by the preparation method.
As a limitation of the product of the invention, the grafting amount of the surface active group of the antiviral non-woven fabric is 50-150% (the grafting amount is the weight percentage of the surface grafted carboxyl/amino/epoxy group and the non-woven fabric), and the content of the surface deposited metal oxide is 0.01-0.15 g/g (the content is the weight ratio of the surface deposited metal oxide to the non-woven fabric); the antiviral activity rate of the antiviral non-woven fabric based on the instantaneous pressure release spinning polyolefin on H1N1 coronavirus can reach 99%.
The invention also provides an application of the antiviral non-woven fabric based on the instantaneous pressure-release spinning polyolefin, and the antiviral non-woven fabric is applied to product packaging and medical safety protection products.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
(1) according to the invention, active groups such as carboxyl, amino, epoxy and the like are grafted on the surface, so that metal ions are favorably complexed and reduced into metal oxides, and the polyolefin non-woven fabric based on instantaneous pressure release spinning can be endowed with antibacterial and antiviral properties;
(2) according to the invention, cobalt 60 or electron beam radiation is adopted for surface grafting, and through cobalt 60 or electron beam radiation, peroxide and active oxygen free radicals (such as hydroxyl free radicals and the like) are generated on the surface of the polyolefin non-woven fabric, on one hand, the substances can be grafted with acrylic acid, glycidyl methacrylate, ethylenediamine and other similar substances containing active groups such as carboxyl, amino, epoxy and the like, metal ions such as silver, copper, zinc and the like are complexed by virtue of the active groups, and on the other hand, the complexed metal particles have strong oxidizing property after reduction, so that the performance of killing viruses, germs, fungi and other microorganisms can be improved;
(3) the invention improves the antiviral activity of the polyolefin non-woven fabric based on instantaneous pressure release spinning by depositing the metal oxide with the antibacterial effect through surface reaction;
(4) the modification method is simple, easy to operate and low in cost, and can be used for batch production;
(5) the invention is based on the surface modification of the instantaneous pressure-release spinning polyolefin non-woven fabric, the prepared anti-virus non-woven fabric has high wear resistance, good air permeability, high barrier property and good anti-virus activity, the anti-virus activity rate of the anti-virus agent to H1N1 coronavirus can reach 99%, and the virus killing efficiency is high (verified by a P3 laboratory of the public health center of Shanghai city, the virus killing of the anti-virus agent can be completed within 0.5 hour, and the virus killing of other metal particle anti-virus products can be completed within about 4 hours);
(6) the grafting amount of the active groups on the surface of the antiviral non-woven fabric is controlled to be 50-150%, so that metal particles can be effectively loaded, and the influence on the antibacterial protection performance due to excessive grafting amount can be avoided; the content of the metal oxide deposited on the surface is 0.01-0.15 g/g, so that the antiviral activity of the antiviral non-woven fabric can be ensured, and the production cost can be reduced.
In conclusion, the invention is based on the surface modification of the instantaneous pressure-release spinning polyolefin non-woven fabric, and comprehensively utilizes the anti-bacterial and anti-virus technology of active oxygen free radicals such as peroxide, hydroxyl free radicals and the like and metal ions, so that the instantaneous pressure-release spinning polyolefin non-woven fabric is endowed with good anti-bacterial and anti-virus performance; the preparation method is simple, easy to operate and low in cost, and can be used for batch production; the prepared antiviral non-woven fabric has good wear resistance, high air permeability, high barrier property and good and efficient antiviral activity, and the antiviral activity rate on H1N1 coronavirus can reach 99%.
The invention is suitable for preparing the antiviral non-woven fabric based on the instantaneous pressure-release spinning polyolefin, and the antiviral non-woven fabric based on the instantaneous pressure-release spinning polyolefin can be used for product packaging, antiviral mask manufacturing, protective clothing manufacturing and other medical safety protective articles.
The invention is described in further detail below with reference to the figures and the embodiments.
Drawings
FIG. 1 is a SEM photograph of the polyethylene nonwoven fabric and M2 in example 2;
FIG. 2 is a scanning electron microscope photograph of the polyethylene nonwoven fabric M3 in example 3;
FIG. 3 is a scanning electron microscope photograph of the polyethylene nonwoven fabric M4 of example 4;
FIG. 4 is a scanning electron microscope photograph of the polypropylene nonwoven fabric M5 in example 5.
Detailed Description
The following specific examples further illustrate the invention but are not intended to limit the invention thereto.
Example 1 preparation of an instantaneous pressure release based polyolefin nonwoven
To prepare fine polyolefin fibers, chinese patent application nos. 202010522717.8, 202010522189.6 disclose a new method of instantaneous pressure-relief spinning preparation. Firstly, adding a high-density polyolefin raw material and a solvent into a supercritical reaction kettle for mixing, then injecting carbon dioxide to increase the pressure in the kettle, and simultaneously increasing the temperature to enable a solvent system in the kettle to reach a supercritical state, so that the dissolving capacity is greatly increased, molecular chains are disentangled, and solutes are dissolved to form a supercritical spinning fluid; then the spinning solution is ejected from a spinneret orifice at a high speed, the spinning solution flow is gradually changed into unstable turbulent flow from the initial stable laminar flow, and the unstable turbulent flow is accompanied with the rapid volatilization of the solvent to form a stranded filament bundle; then, forming a micro-fiber structure through the drainage and the drafting of ultrahigh-speed air flow; the produced polyolefin fiber tows pass through an air amplifier uniform drafting fiber opening device, an electrostatic fiber opening device and an online monitoring and grid control device, and then form the polyolefin non-woven fabric with adjustable thickness and stacking structure under the action of a hot roller.
Example 2 method for preparing an antiviral nonwoven based on an instant pressure-release spun polyolefin
This example is a process for preparing an instantaneous pressure-release polyolefin-based antiviral nonwoven fabric, which is carried out according to the following steps:
s1, weighing 50kg of polyethylene non-woven fabric prepared by instantaneous pressure-release spinning with a melt index of 20, then placing the polyethylene non-woven fabric in 568.6g of glycidyl methacrylate containing epoxy groups, and treating for 5 minutes by using cobalt 60 (the irradiation dose is 25kGy) to obtain non-woven fabric A;
s2, soaking the non-woven fabric A in purified water, adding 1169g of ethylene diamine tetraacetic acid (the molar ratio of the ethylene diamine tetraacetic acid to the glycidyl methacrylate is 1:1), and soaking for 4 hours at 60 ℃; then 1000mL of 4mol/L copper sulfate aqueous solution (the molar ratio of the copper sulfate to the ethylene diamine tetraacetic acid is 1:1) is added for complexation reaction for 2 hours; finally, 704g of ascorbic acid (the molar ratio of the ascorbic acid to the ethylenediamine tetraacetic acid is 1:1.2) is added for reaction for 1 hour, and the non-woven fabric B is obtained;
the nonwoven B was cleaned with purified water and then dried by blowing at 60 ℃ for 12 hours to obtain an antiviral nonwoven based on an instant pressure-release spun polyolefin, designated M2.
Fig. 1 is a scanning electron microscope picture of the polyethylene nonwoven fabric and M2 in this example, fig. 1a shows a photomicrograph of the polyethylene nonwoven fabric, fig. 1b is a microstructure diagram of M2 prepared by depositing metal oxide on the surface of the polyethylene nonwoven fabric, it can be seen that the surface of the polyethylene microfiber is smooth before modification, and cuprous oxide clusters with a diameter of 300-700 nm are formed on the polyethylene microfiber after surface modification; the grafting amount of the M2 surface active group is 50 percent by calculation of the infrared spectrum integral area; the content of the metal oxide deposited on the surface of the M2 is calculated to be 0.05g/g after the element content is tested by an element analyzer.
Examples 3-11 methods for preparing antiviral nonwovens based on instant pressure-release spun polyolefin
Examples 3-11 are processes for preparing an instantaneous pressure-release polyolefin-based antiviral nonwoven fabric, which are substantially the same as example 2 except for the use of raw materials and process parameters, and are specifically shown in the following table:
TABLE 1 summary of the raw material quantities and process parameters of examples 3-11
FIG. 2 is a microstructure diagram of M3 prepared by depositing metal oxide on the surface of the polyethylene non-woven fabric in example 3, and it can be seen that cuprous oxide clusters with a diameter of 300-700 nm are formed on the polyethylene fibers after surface modification; the grafting amount of the M3 surface active group is 100 percent by calculation of the infrared spectrum integral area; the content of the metal oxide deposited on the surface of the M3 is calculated to be 0.15g/g after the element content is tested by an element analyzer.
FIG. 3 is a microstructure diagram of M4 prepared by depositing a metal oxide on the surface of the polyethylene nonwoven fabric in example 4. After the surface modification, zinc oxide clusters with the diameter of 280-700 nm are formed on the polyethylene fibers; the grafting amount of the M4 surface active group is 150 percent by calculation of the infrared spectrum integral area; the content of the metal oxide deposited on the surface of the M4 is calculated to be 0.07g/g after the element content is tested by an element analyzer.
FIG. 4 is a microstructure diagram of M5 prepared by depositing a metal oxide on the surface of the polypropylene nonwoven fabric in example 5. After the surface modification, silver and silver oxide clusters with the diameter of 280-700 nm are formed on the polypropylene fiber; the grafting amount of the M5 surface active group is 115 percent by calculation of the infrared spectrum integral area; the content of the metal oxide deposited on the surface of the M5 is calculated to be 0.11g/g after the element content is tested by an element analyzer.
Example 12 testing of the antimicrobial and antiviral Activity of an instantaneous Release pressure spun polyolefin-based antiviral nonwoven Fabric
Respectively carrying out antibacterial and antiviral activity tests on the M2-M11 prepared in examples 2-11 and the polyolefin non-woven fabric based on instantaneous pressure release spinning, wherein the antibacterial activity test is carried out according to a part 3 oscillation method for evaluating the antibacterial performance of GBT20944.3-2008 textiles; antiviral activity test experiments were performed according to "ISO 18184:2014(E) antiviral textile test" with the test results shown in the following table:
TABLE 2 results of the antibacterial, antiviral tests on M2-M11 antiviral nonwovens provided in examples 2-11
The above results demonstrate that the antiviral nonwoven fabric based on instant pressure-release spun polyolefin has excellent inhibitory effect on bacteria and viruses, and can be used for the manufacture of product packaging, antiviral masks, protective clothing, etc.
Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. 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 (9)
1. The preparation method of the antiviral non-woven fabric based on the instantaneous pressure-release spinning polyolefin is characterized by comprising the following steps of:
s1, grafting carboxyl, amino or epoxy active groups on the surface of the instantaneous pressure-release spinning polyolefin non-woven fabric to obtain a non-woven fabric A;
s2, immersing the non-woven fabric A into a complexing agent aqueous solution, adding a metal salt aqueous solution after immersion to perform a complexing reaction, then adding a reducing agent to perform a reduction reaction, and then cleaning and drying to obtain the antiviral non-woven fabric based on the instant pressure-release spinning polyolefin;
in step S1, the surface grafting is performed by a radiation grafting method; the radiation source is cobalt 60 or electron beams; the radiation energy is 5-25 kGy, and the radiation time is 1-20 minutes;
in step S2, the metal salt is at least one of soluble silver, copper, and zinc metal salts.
2. The method for preparing an instantaneous pressure-release spun polyolefin-based antiviral nonwoven fabric according to claim 1, wherein in step S1, the instantaneous pressure-release spun polyolefin nonwoven fabric is made of high density polyethylene having a melt index of 1 to 20 or polypropylene having a melt index of 20 to 100.
3. The method for preparing an antiviral nonwoven fabric based on instant pressure-release spun polyolefin according to claim 1, wherein the reactive group source is acrylic acid, glycidyl methacrylate or ethylenediamine in step S1.
4. The method for preparing an antiviral nonwoven fabric based on instant pressure-release spun polyolefin according to claim 1, wherein in step S2, the complexing agent is ethylenediamine tetraacetic acid or hexamethylenetetramine; the mol ratio of the complexing agent to the active group grafted on the surface of the non-woven fabric A is 1-2: 1;
the soaking temperature is 40-60 ℃, and the soaking time is 2-4 hours.
5. The method for preparing the antiviral nonwoven fabric based on the instant pressure-release spinning polyolefin according to claim 1, wherein in the step S2, the molar ratio of the metal ions in the metal salt to the complexing agent is 1-2: 1; the complexing reaction time is 0.5-2 hours;
the reducing agent is ascorbic acid; the molar ratio of the ascorbic acid to the complexing agent is 1-2: 1.2; the reduction reaction time is 1-2 hours.
6. The method for preparing an instantaneous pressure release spun polyolefin-based antiviral nonwoven fabric according to claim 1, wherein in the step S2, the washing uses purified water; the drying temperature is 60 ℃ and the drying time is 12-24 hours.
7. An instantaneous pressure-release polyolefin-based antiviral nonwoven fabric, characterized by being produced according to the method for producing an instantaneous pressure-release polyolefin-based antiviral nonwoven fabric of any one of claims 1 to 6.
8. The instantaneous pressure-release spun polyolefin-based antiviral nonwoven fabric according to claim 7, wherein the grafting amount of the surface active groups is 50 to 150%, and the content of the surface-deposited metal oxide is 0.01 to 0.15 g/g; the antiviral activity rate of the antiviral non-woven fabric based on the instantaneous pressure release spinning polyolefin on H1N1 coronavirus can reach 99%.
9. Use of the instantaneous pressure release polyolefin based antiviral nonwoven fabric according to claim 7 or 8, characterized in that the instantaneous pressure release polyolefin based antiviral nonwoven fabric is used in product packaging, and medical safety protection articles.
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| JP2004225181A (en) * | 2003-01-21 | 2004-08-12 | Chubu Kiresuto Kk | Chelate-forming fiber, method for producing the same, metal ion scavenging method using the fiber and metal chelate fiber |
| CN101597860B (en) * | 2008-06-06 | 2011-06-22 | 王家君 | Complex antibacterial fiber, fabric and preparation method thereof |
| CN101445291A (en) * | 2008-12-25 | 2009-06-03 | 东华大学 | In-situ preparation method for functional nullvalent nano-iron/polyelectrolyte composite fibrofelt |
| CN103451633A (en) * | 2012-06-04 | 2013-12-18 | 新加坡银嘉科技有限公司 | Method of forming and immobilizing metal nanoparticles on substrates and the use thereof |
| CN107541953A (en) * | 2016-06-29 | 2018-01-05 | 北京化工大学 | A kind of composite conducting fiber and preparation method thereof |
| CN108589266A (en) * | 2018-04-24 | 2018-09-28 | 陕西科技大学 | The method of nano-metal particle/metal organic frame composite antibacterial fibre cellulose fiber |
| CN110331582A (en) * | 2019-07-03 | 2019-10-15 | 东华大学 | A kind of super hydrophilic anti-bacterial fibre cellulose fiber and preparation method thereof |
| CN111705368A (en) * | 2020-06-10 | 2020-09-25 | 东华大学 | Method for preparing polypropylene fiber aggregate based on instantaneous pressure-release spinning method and application |
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