CN102872653A - 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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- CN102872653A CN102872653A CN201210376768XA CN201210376768A CN102872653A CN 102872653 A CN102872653 A CN 102872653A CN 201210376768X A CN201210376768X A CN 201210376768XA CN 201210376768 A CN201210376768 A CN 201210376768A CN 102872653 A CN102872653 A CN 102872653A
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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 a kind of mouth mask with antimicrobial filtering material and preparation method thereof, relate in particular to a kind of mouth mask antibiotic polymer nano fibre filtering material and preparation method thereof.
Background technology
The current world economy development is rapid, and people's living standard significantly improves.But in the time of economic development, also brought severe environmental problem.The residue that discharges through burning in the processes such as industrial production, daily generating, motor vehicle exhaust emission is huge on people's respiratory health impact.Especially diameter is less than the fines thing (PM 2.5) of 2.5um in the air, and they are the maximum arch-criminals that cause atmosphere haze and Human Lung Cancer.On February 29th, 2012, the Premier Wen Jiabao holds Executive Meeting of the State Council, agrees " ambient air quality " of the new revision of issue, and regulation is included PM 2.5 in each province and city compulsory test category.Except dust granules, also have bacterial virus in the air, they are attached on the airborne suspended particulate usually along with Air Flow is propagated.
Polymer nanofiber is diameter at tens superfine fibres to the hundreds of nanometer, prepares by electrostatic spinning technique.Electrostatic spinning is to make Polymer Solution or melt charged, and place high voltage electric field between spinning nozzle and the receiving screen, overcome the surface tension of Polymer Solution or melt by electrostatic attraction, thereby make spinning solution become one charged injection stream, and in electric field, move, be collected at last on the 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 the nanofiber bonded fabric.The nanofiber bonded fabric of this static electrification own is a kind of extraordinary filtering material, and is 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 that fines and bacterial virus are had filtration efficiency.
Summary of the invention
Because the defects of prior art, technical problem to be solved by this invention provides a kind ofly can effectively filter fines, the mouth mask filtering material that also bacterial virus is had filtration efficiency simultaneously.
For achieving the above object, the invention provides a kind of mouth mask antibiotic polymer nano fibre filtering material and preparation method thereof.
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 the 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 to contain the polymer nanofiber of antiseptic and the composite membrane of supporter nonwoven with the antimicrobial filtering material, wherein, play the very thin thickness of the polymer nanofibre film of filtration and bactericidal action, and its fibre diameter size also is 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 kill it by antiseptic.
Use in the antimicrobial filtering material at mouth mask of the present invention, the thickness that contains the polymer nanofibre film layer of antiseptic is 1-30um, and the polymer nanofiber diameter in this rete is 300-1000nm, and fiber is random arrangement substantially.
Use in the antimicrobial filtering material at mouth mask of the present invention, 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 implementation of the present invention, the 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 the zinc sulfate.
On the other hand, the present invention also provides a kind of and has prepared above-mentioned mouth mask with the method for antimicrobial filtering material, comprises the steps:
At first, with antiseptic, polymer nanofiber and solvent blend dissolving, obtain stable uniform solution; Or directly with antiseptic and polymer melting, obtain the homogeneous melt;
Then, above-mentioned uniform solution or the homogeneous melt that will contain the polymer nanofiber of antiseptic by electrostatic spinning spin on the supporter nonwoven, thereby obtain mouth mask antimicrobial filtering material; Use in the antimicrobial filtering material at the mouth mask that makes, the weight ratio of described antiseptic, polymer nanofiber and supporter nonwoven is 1-20: 10-30: 100.
In preferred embodiment of the present invention, during with antiseptic, polymer nanofiber and solvent blend dissolving, 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, the trichloroethanes.
In another preferred embodiment of the present invention, during with 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 made in this area, and this is not particularly limited.For example will contain solution or the melt that the polymer nanofiber of antiseptic spins by solution or melting electrostatic spinning method spins on the 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 following advantage with antimicrobial filtering material and preparation method thereof:
(1) because antimicrobial filtering material of the present invention is to contain the polymer nanofiber of antiseptic and the composite membrane of supporter nonwoven, therefore, containing the diameter of polymer nanofiber of antiseptic and the thicknesses of layers of nanofiber 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 kill it by antiseptic.
(2) mouth mask of the present invention is simple, with low cost with antimicrobial filtering material preparation method, is fit to suitability for industrialized production.
(3) mouth mask of being made by antimicrobial filtering material of the present invention, not only has good gas permeability, and can efficiently hold back the 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 the antimicrobial filtering material after tested.When Pressure Drop during less than the 35mm water column, this mouth mask can reach the Application standard of Chinese GB2626-2006KN90.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand fully purpose of the present invention, feature and effect.
Description of drawings
Fig. 1 is the mouth mask that makes of embodiments of the invention 1 with the sectional view of antimicrobial filtering material.
Fig. 2 is the mouth mask that makes of embodiments of the invention 1 with the exterior view of antimicrobial filtering material.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
The raw material that uses in the embodiments of the invention is the commercially available prod except specifying.The filtering material that obtains among the embodiment is tested rejection to the 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.Use in the antimicrobial filtering material at the mouth mask that embodiment makes, 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 the N of 2.677g, in the mixed solvent of N-dimethylacetylamide and 10.708g acetone, behind the solution mixing homogeneous, by the solution electrostatic spinning this solution that contains the polyvinylidene fluoride nanometer fiber of silver nitrate is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask with the sectional view of antimicrobial filtering material as shown in Figure 1, its exterior view is as shown in Figure 2.Use in the antimicrobial filtering material at this mouth mask, 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, is 79.8% to the rejection of sodium chloride aerosol particle, and pressure is reduced to the 26.2mm water column.
Embodiment 2
1.000g polyvinyl alcohol and 1.000g silver sulfate are dissolved in the 10.000g water, behind the solution mixing homogeneous, by the 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 the 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 the 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, behind the solution mixing homogeneous, by the solution electrostatic spinning, this solution that contains the polylactic acid nano fiber of zinc nitrate is spun on 2g supporter spun-bonded non-woven fabrics.Prepared mouth mask is with in the 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 the 38.8mm water column.
Embodiment 4
To carry out the melting electrostatic spinning silk after 2.000g PETG and the melting of 1.500g cuprous sulfate, the PETG nanofiber that this sulfur acid is cuprous spins on 2g supporter needle punched non-woven fabrics.Prepared mouth mask is with in the 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 the 30.8mm water column.
Embodiment 5
Will the 2.000g polyamide and 1.000g silver melting homogeneous after carry out the melting electrostatic spinning silk, the polyamide nanofiber of this argentiferous is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in the 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 the 25.5mm water column.
Embodiment 6
2.000g polyether sulfone and 1.000g copper nitrate are dissolved in the N of 4.964g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 2.217g, behind the solution mixing homogeneous, by the solution electrostatic spinning, this solution that contains the polyether sulfone nanofiber of copper nitrate is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in the 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 the 31.3mm water column.
Embodiment 7
2.000g polyether sulfone and 0.800g di-2-ethylhexylphosphine oxide thiocyanates are dissolved in the N of 4.964g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 2.217g, behind the solution mixing homogeneous, by the solution electrostatic spinning, this solution that contains the polyether sulfone nanofiber of di-2-ethylhexylphosphine oxide thiocyanates is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in the 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 the 21.2mm water column.
Embodiment 8
2.000g polyether sulfone and 1.500g cuprous nitrate are dissolved in the N of 4.474g, in the mixed solvent of the 1-METHYLPYRROLIDONE of N-METHYLFORMAMIDE and 1.962g, behind the solution mixing homogeneous, by the solution electrostatic spinning, this solution that contains the polyether sulfone nanofiber of cuprous nitrate is spun on 2g supporter melt spraying non-woven fabrics.Prepared mouth mask is with in the 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 the 18.3mm water column.
Embodiment 9
2.000g polyether sulfone and 1.200g copper sulphate are dissolved in the N of 3.985g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 1.708g, behind the solution mixing homogeneous, by the 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 the 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 the 28.6mm water column.
Embodiment 10
2.000g polyether sulfone and 0.500g nano zine oxide are dissolved in the N of 3.985g, in the mixed solvent of the 1-METHYLPYRROLIDONE of dinethylformamide and 1.708g, behind the solution mixing homogeneous, by the solution electrostatic spinning, this solution that contains the polyether sulfone nanofiber of nano zine oxide is spun on 2g supporter spun-bonded non-woven fabrics.Prepared mouth mask is with in the 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 the 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 need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all in the art technical staff 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 (9)
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, polyurethane, polyamide, polyacrylonitrile, polystyrene, polyvinyl alcohol, PLA, PETG, polyethylene or polypropylene.
2. mouth mask as claimed in claim 1 antimicrobial filtering material is characterized in that, described supporter nonwoven for melt and spray, 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 the zinc sulfate.
5. such as each described mouth mask antimicrobial filtering material of claim 1-4, it is characterized in that, described mouth mask is the composite membrane of polymer nanofiber and supporter nonwoven with the antimicrobial filtering material, wherein, the described thickness that contains the polymer nanofibre film layer of antiseptic is 1-30um, and the diameter of the polymer nanofiber in the described rete is 300-1000nm.
One kind prepare arbitrary such as claim 1-5 as described in mouth mask with the method for antimicrobial filtering material, comprise the steps:
Solution or the melt of polymer nanofiber and antiseptic are spun on described supporter nonwoven by the polymer nanofiber that electrostatic spinning will contain antiseptic, obtain mouth mask antimicrobial filtering material.
7. preparation method as claimed in claim 6, it is characterized in that, the solution of described polymer nanofiber and antiseptic refers to described antiseptic and polymer nanofiber and solvent to obtain stable uniform solution by weight carry out the blend dissolving for 1-20: 10-30: 100-120.
8. preparation method as claimed in claim 7 is characterized in that described solvent is one or more in DMF, 1-METHYLPYRROLIDONE, DMA, acetone, water, ethanol, dichloroethanes, the trichloroethanes.
9. mouth mask that contains just like each described antimicrobial filtering material of claim 1-5.
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