CN102872653B - Antibacterial filtering material for mask and method for manufacturing antibacterial filtering material - Google Patents
Antibacterial filtering material for mask and method for manufacturing antibacterial filtering material Download PDFInfo
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- CN102872653B CN102872653B CN201210376768.XA CN201210376768A CN102872653B CN 102872653 B CN102872653 B CN 102872653B CN 201210376768 A CN201210376768 A CN 201210376768A CN 102872653 B CN102872653 B CN 102872653B
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- filtering material
- antiseptic
- mouth mask
- polymer nanofiber
- supporter
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Abstract
The invention discloses an antibacterial filtering material for a mask and a method for manufacturing the antibacterial filtering material. The filtering material for the mask comprises antibacterial agents, polymeric nano-fibers and a supporting non-woven fabric. The method for manufacturing the antibacterial filtering material includes spinning the polymeric nano-fibers on the supporting non-woven fabric via solution or fusant of the polymeric nano-fibers added with the antibacterial agents by means of electrostatic spinning. The filtering material for the mask is high in rejection to ultrafine particles, bacteria and viruses, the method for manufacturing the filtering material is simple, cost is low, and the antibacterial filtering material and the method are suitable for industrial production. In addition, the mask made of the antibacterial filtering material is good in breathability, and rejection to sodium chloride aerosol particles with the sizes of 0.3 micrometer can be higher than 90%.
Description
Technical field
The present invention relates to antimicrobial filtering material and preparation method thereof for a kind of mouth mask, relate in particular to antibiotic polymer nano fibre filtering material and preparation method thereof for a kind of mouth mask.
Background technology
Rapidly, people's living standard significantly improves in current world economy development.But in the time of economic development, also brought severe environmental problem.The residue discharging through burning in the processes such as industrial production, daily generating, motor vehicle exhaust emission is huge on people's respiratory health impact.Especially in air, diameter is less than the fines thing (PM 2.5) of 2.5um, and they are the maximum arch-criminals that cause atmosphere haze and Human Lung Cancer.On February 29th, 2012, Premier Wen Jiabao holds Executive Meeting of the State Council, the < < ambient air quality > > that agrees to the new revision of issue, regulation is included PM 2.5 in each province and city compulsory test category.In air, except dust granules, also have bacterial virus, they are attached on airborne suspended particulate conventionally along with Air Flow is propagated.
Polymer nanofiber is diameter at tens superfine fibres to hundreds of nanometer, by electrostatic spinning technique, prepares.Electrostatic spinning be make Polymer Solution or melt charged, and be placed in the high voltage electric field between spinning nozzle and receiving screen, by electrostatic attraction, overcome the surface tension of Polymer Solution or melt, thereby make spinning solution become one charged injection stream, and move in electric field, be finally collected on metal net shaped receiving screen, become the fibrofelt of nonwoven shape, Polymer Solution or melt solidify because of evaporation or the melt cooling of solvent, thereby become nanofiber bonded fabric.The nanofiber bonded fabric of this static electrification own is a kind of extraordinary filtering material, high to the filter efficiency of fines and bacterial virus.
Therefore, those skilled in the art is devoted to develop a kind of filtering material fines and bacterial virus to filtration efficiency.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind ofly can effectively filter fines, also bacterial virus is had the mouth mask filtering material of filtration efficiency simultaneously.
For achieving the above object, the invention provides antibiotic polymer nano fibre filtering material and preparation method thereof for a kind of mouth mask.
On the one hand, the invention provides a kind of mouth mask antibiotic polymer nano fibre filtering material.
Particularly, mouth mask of the present invention comprises antiseptic, polymer nanofiber and supporter nonwoven with antimicrobial filtering material.Wherein, the weight ratio of antiseptic, polymer nanofiber and supporter nonwoven is 1-20: 10-30: 100.
Mouth mask of the present invention is the polymer nanofiber that contains antiseptic and the composite membrane of supporter nonwoven with antimicrobial filtering material, wherein, play the very thin thickness of the polymer nanofibre film of filtration and bactericidal action, and its fibre diameter size is also controlled, therefore, this composite membrane all has very high rejection to ultra-fine particle and bacterial virus, and at the same time, the bacterium of interception absorption can be killed by antiseptic.
At mouth mask of the present invention, with in antimicrobial filtering material, the thickness of the polymer nanofibre film layer that contains antiseptic is 1-30um, and the polymer nanofiber diameter in this rete is 300-1000nm, and fiber is random arrangement substantially.
At mouth mask of the present invention, with in antimicrobial filtering material, described polymer nanofiber is preferably polyether sulfone (PES), Kynoar (PVDF), polyurethane (PU), polyamide (PA), polyacrylonitrile (PAN), polystyrene (PS), polyvinyl alcohol (PVA), PLA (PLA), PETG (PET), polyethylene (PE) or polypropylene (PP).
In the present invention, described antiseptic is organic antibacterial agent or inorganic antiseptic.
When the present invention specifically implements, supporter nonwoven is preferably and melts and sprays, spunbond or needle punched non-woven fabrics.
In the specific embodiment of the present invention, organic antibacterial agent is preferably di-2-ethylhexylphosphine oxide thiocyanates or benzyl dimethyl dodecyl bromination ammonium.Inorganic antiseptic is preferably one or more in silver, copper, zinc, silver oxide, cupric oxide, cuprous oxide, zinc oxide, silver-loaded zirconium phosphate, silver nitrate, copper nitrate, cuprous nitrate, zinc nitrate, silver sulfate, cuprous sulfate and zinc sulfate.
On the other hand, the present invention also provides a kind of method of antimicrobial filtering material for above-mentioned mouth mask of preparing, and comprises the steps:
First, antiseptic, polymer nanofiber and solvent blend are dissolved, obtain stable uniform solution; Or directly by antiseptic and polymer melting, obtain homogeneous melt;
Then, by electrostatic spinning, the above-mentioned uniform solution of the polymer nanofiber that contains antiseptic or homogeneous melt are spun on supporter nonwoven, thereby obtained mouth mask antimicrobial filtering material; At the mouth mask making, with in antimicrobial filtering material, the weight ratio of described antiseptic, polymer nanofiber and supporter nonwoven is 1-20: 10-30: 100.
In the preferred embodiment of the present invention, when antiseptic, polymer nanofiber and solvent blend are dissolved, the weight ratio of antiseptic, polymer nanofiber and solvent is preferably 1-20: 10-30: 100-120.
In the specific embodiment of the present invention, described solvent is preferably DMF, 1-METHYLPYRROLIDONE, N, one or more in N-methylacetamide, acetone, water, ethanol, dichloroethanes, trichloroethanes.
In another preferred embodiment of the present invention, during by antiseptic and the direct melting of polymer nanofiber, the weight ratio of antiseptic and polymer is preferably 1-20: 10-30.
In the present invention, described electrospinning process is the common method that nanometer and superfine fibre are manufactured in this area, and this is not particularly limited.The solution or the melt that for example by solution or melting electrostatic spinning method, the polymer nanofiber that contains antiseptic are spun spin on supporter nonwoven.
The invention still further relates to a kind of mouth mask that contains above-mentioned antimicrobial filtering material.
Mouth mask provided by the invention has the following advantages with antimicrobial filtering material and preparation method thereof tool:
(1), because antimicrobial filtering material of the present invention is the polymer nanofiber that contains antiseptic and the composite membrane of supporter nonwoven, therefore, containing the diameter of polymer nanofiber and the thicknesses of layers of nanofiber of antiseptic, can regulate and control.Wherein, play the very thin thickness of the polymer nanofibre film of filtration and bactericidal action, therefore, this composite membrane all has very high rejection to ultra-fine particle and bacterial virus, and at the same time, the bacterium of interception absorption can be killed by antiseptic.
(2) mouth mask of the present invention is simple, with low cost by the preparation method of antimicrobial filtering material, is applicable to suitability for industrialized production.
(3) mouth mask of being made by antimicrobial filtering material of the present invention, not only there is good gas permeability, and can efficiently hold back sodium chloride aerosol particle, mouth mask of the present invention can be up to more than 90% to the rejection of 0.3um sodium chloride aerosol particle with antimicrobial filtering material after tested.When Pressure Drop is less than 35mm water column, this mouth mask can reach the use standard of Chinese GB2626-2006KN90.
Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of antimicrobial filtering material for the mouth mask that makes of embodiments of the invention 1.
Fig. 2 is the exterior view of antimicrobial filtering material for the mouth mask that makes of embodiments of the invention 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
The raw material using in embodiments of the invention, except special instruction, is commercially available prod.The filtering material obtaining in embodiment is tested the rejection to sodium chloride aerosol particle by sodium flame method, and test machine is the automatic filtrate tester of 8130AFT that TIS produces; Test condition is for adopting 0.3um sodium chloride aerosol particle, and flow is 85L/min.The mouth mask making at embodiment is with in antimicrobial filtering material, and the weight ratio of described antiseptic, polymer nanofiber and supporter nonwoven remains on 1-20: 10-30: 100.
Embodiment 1
2.000g Kynoar and 1.5000g silver nitrate are dissolved in to the N of 2.677g, in the mixed solvent of N-dimethylacetylamide and 10.708g acetone, after solution mixing homogeneous, by solution electrostatic spinning, by this, the solution containing the polyvinylidene fluoride nanometer fiber of silver nitrate spins on 2g supporter melt spraying non-woven fabrics.As shown in Figure 1, its exterior view as shown in Figure 2 for the sectional view of prepared mouth mask use antimicrobial filtering material.At this mouth mask, with in antimicrobial filtering material, the fibrolaminar thickness of polyvinylidene fluoride nanometer that contains silver nitrate is 25um, and the average diameter of its polymer nanofiber is 595nm.This filter material is tested through sodium flame method, to the rejection of sodium chloride aerosol particle, is 79.8%, and pressure is reduced to 26.2mm water column.
Embodiment 2
1.000g polyvinyl alcohol and 1.000g silver sulfate are dissolved in 10.000g water, after solution mixing homogeneous, by solution electrostatic spinning, the aqueous solution of the polyvinyl alcohol nano of this sulfur acid silver are spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness of the polyvinyl alcohol nano layer of sulfur acid silver is 25um, and the average diameter of its polymer nanofiber is 330nm.After tested, this filter material is 92.5% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 38.2mm water column.
Embodiment 3
1.000g PLA and 1.000g zinc nitrate are dissolved in the mixed solvent of 9.000g carrene and 0.500g ethanol, after solution mixing homogeneous, by solution electrostatic spinning, the solution by this containing the polylactic acid nano fiber of zinc nitrate spins on 2g supporter spun-bonded non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness that contains the polylactic acid nano fiber layer of zinc nitrate is 30um, and the average diameter of its polymer nanofiber is 1000nm.After tested, this filter material is 79.8% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 38.8mm water column.
Embodiment 4
To after 2.000g PETG and the melting of 1.500g cuprous sulfate, carry out melting electrostatic spinning silk, the cuprous PETG nanofiber of this sulfur acid is spun on 2g supporter needle punched non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness of the PETG nanofiber layer that sulfur acid is cuprous is 30um, and the average diameter of its polymer nanofiber is 990nm.After tested, this filter material is 60.5% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 30.8mm water column.
Embodiment 5
By carrying out melting electrostatic spinning silk after 2.000g polyamide and 1.000g silver melting homogeneous, the polyamide nanofiber of this argentiferous is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness of the polyamide nanofiber layer of argentiferous is 10um, and the average diameter of its polymer nanofiber is 950nm.After tested, this filter material is 50.2% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 25.5mm water column.
Embodiment 6
2.000g polyether sulfone and 1.000g copper nitrate are dissolved in to the N of 4.964g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 2.217g, after solution mixing homogeneous, by solution electrostatic spinning, the solution by this containing the polyether sulfone nanofiber of copper nitrate spins on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness that contains the polyether sulfone nanofiber layer of copper nitrate is 10um, and the average diameter of its polymer nanofiber is 350nm.After tested, this filter material is 90.1% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 31.3mm water column.
Embodiment 7
2.000g polyether sulfone and 0.800g di-2-ethylhexylphosphine oxide thiocyanates are dissolved in to the N of 4.964g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 2.217g, after solution mixing homogeneous, by solution electrostatic spinning, the solution by this containing the polyether sulfone nanofiber of di-2-ethylhexylphosphine oxide thiocyanates spins on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness that contains the polyether sulfone nanofiber layer of di-2-ethylhexylphosphine oxide thiocyanates is 5um, and the average diameter of its polymer nanofiber is 353nm.After tested, this filter material is 78.7% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 21.2mm water column.
Embodiment 8
2.000g polyether sulfone and 1.500g cuprous nitrate are dissolved in to the N of 4.474g, in the mixed solvent of the 1-METHYLPYRROLIDONE of N-METHYLFORMAMIDE and 1.962g, after solution mixing homogeneous, by solution electrostatic spinning, the solution by this containing the polyether sulfone nanofiber of cuprous nitrate spins on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness that contains the polyether sulfone nanofiber layer of cuprous nitrate is 5um, and the average diameter of its polymer nanofiber is 650nm.After tested, this filter material is 70.1% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 18.3mm water column.
Embodiment 9
2.000g polyether sulfone and 1.200g copper sulphate are dissolved in to the N of 3.985g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 1.708g, after solution mixing homogeneous, by solution electrostatic spinning, the solution of the polyether sulfone nanofiber of this sulfur acid copper is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness of the polyether sulfone nanofiber layer of sulfur acid copper is 10um, and the average diameter of its polymer nanofiber is 990nm.After tested, this filter material is 61.3% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 28.6mm water column.
Embodiment 10
2.000g polyether sulfone and 0.500g nano zine oxide are dissolved in to the N of 3.985g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 1.708g, after solution mixing homogeneous, by solution electrostatic spinning, the solution by this containing the polyether sulfone nanofiber of nano zine oxide spins on 2g supporter spun-bonded non-woven fabrics.Prepared mouth mask is with in filtering material, and the thickness that contains the polyether sulfone nanofiber layer of nano zine oxide is 25um, and the average diameter of its polymer nanofiber is 998nm.After tested, this filter material is 72.1% to the rejection of sodium chloride aerosol particle, and pressure is reduced to 35.2mm water column.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. a mouth mask antimicrobial filtering material, comprises antiseptic, polymer nanofiber and supporter nonwoven; Wherein, described antiseptic is organic antibacterial agent or inorganic antiseptic;
The weight ratio of described antiseptic, polymer nanofiber and supporter nonwoven is 1-20:10-30:100;
Described polymer nanofiber is polyether sulfone, Kynoar;
Described mouth mask is the composite membrane of polymer nanofiber and supporter nonwoven with antimicrobial filtering material, and wherein, the thickness of the polymer nanofibre film layer that contains antiseptic is 1-30um, and the diameter of the polymer nanofiber in described rete is 300-1000nm.
2. mouth mask as claimed in claim 1 antimicrobial filtering material, is characterized in that, described supporter nonwoven for melting and spraying, spunbond or needle punched non-woven fabrics.
3. mouth mask as claimed in claim 1 antimicrobial filtering material, is characterized in that, described organic antibacterial agent is di-2-ethylhexylphosphine oxide thiocyanates or benzyl dimethyl dodecyl bromination ammonium.
4. mouth mask as claimed in claim 1 antimicrobial filtering material, it is characterized in that, described inorganic antiseptic is one or more in silver, copper, zinc, silver oxide, cupric oxide, cuprous oxide, zinc oxide, silver-loaded zirconium phosphate, silver nitrate, copper nitrate, cuprous nitrate, zinc nitrate, silver sulfate, cuprous sulfate and zinc sulfate.
5. prepare as arbitrary in claim 1-4 as described in the method for antimicrobial filtering material for mouth mask, comprise the steps:
The solution of polymer nanofiber and antiseptic or melt are spun the polymer nanofiber containing antiseptic on described supporter nonwoven by electrostatic spinning, obtain mouth mask antimicrobial filtering material;
The solution of described polymer nanofiber and antiseptic refers to described antiseptic and polymer nanofiber and solvent by weight for 1-20:10-30:100-120 carries out blend dissolving, obtains stable uniform solution.
6. preparation method as claimed in claim 5, is characterized in that, described solvent is one or more in DMF, 1-METHYLPYRROLIDONE, DMA, acetone, water, ethanol, dichloroethanes, trichloroethanes.
7. one kind containing just like the mouth mask of antimicrobial filtering material described in claim 1-4 any one.
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| CN115467040B (en) * | 2021-10-29 | 2023-10-20 | 厦门赋源高科技有限公司 | Antibacterial nano air filter material and preparation method and application thereof |
| CN116196697A (en) * | 2023-02-22 | 2023-06-02 | 苏州大学 | Antibacterial degradable micro-nano filter material and preparation method thereof |
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| CN1460534A (en) * | 2003-05-28 | 2003-12-10 | 东南大学 | Nano fibre protective filtering material and its preparation method |
| CN101352630A (en) * | 2008-08-29 | 2009-01-28 | 上海兰度科技有限公司 | Multifunctional nano filter medium and preparation method thereof |
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| WO2022003433A1 (en) * | 2020-06-29 | 2022-01-06 | Khalifa University of Science and Technology | Multifunctional filter materials |
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