CN104055247B - The sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable, haze, anti-virus, anti-bacteria - Google Patents
The sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable, haze, anti-virus, anti-bacteria Download PDFInfo
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- CN104055247B CN104055247B CN201410318332.4A CN201410318332A CN104055247B CN 104055247 B CN104055247 B CN 104055247B CN 201410318332 A CN201410318332 A CN 201410318332A CN 104055247 B CN104055247 B CN 104055247B
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Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention discloses the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of a kind of highly air-permeable, haze, anti-virus, anti-bacteria. The profile of described mouth mask is rectangle, and it forms the main body of mouth mask by extexine, the ultra-thin sub-Nano filtering composite membrane filter core of middle highly air-permeable polymkeric substance and internal skin, and the ultra-thin sub-Nano filtering composite membrane filter core of its highly air-permeable polymkeric substance is located between extexine and internal skin. The ultra-thin sub-Nano filtering composite membrane filter core of described polymkeric substance is closely formed by stacking mutually by the highly air-permeable ultra-thin rete of Subnano-class porous polymer and porous carrier layer, the described highly air-permeable ultra-thin rete of Subnano-class porous polymer is adjacent with the outside surface of described mouth mask body, and described porous carrier layer is adjacent with the inside rear face of described mouth mask body. The present invention can effectively strengthen the anti-PM of mouth mask2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the effect of anti-bacteria, air permeable effect and adaptation thereof, and structure is simple and direct, and pendant load person is comfortable.
Description
Technical field
The invention belongs to medical sanitary technology field, it is specifically related to the anti-PM of energy of the sub-nanofiltration membrane of a kind of band highly air-permeable2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the health care of anti-bacteria, medical mask.
Background technology
In prior art, along with the development of China's economic and the raising of living standards of the people, the demand of the energy is increased by people thereupon, especially significantly increases at big or middle city, various types of vehicles and private car. Atmospheric pollution owing to these factors being formed lacks enough understanding and attention, and in recent years, in the area that the density of population is big, city especially big or middle produces haze weather, the healthy and life of the serious threat people. The mechanism that haze weather produces is very complicated, and its chemical composition is also very complicated. It contains a large amount of nitrogenous organic particulate matters, and its composition is very complicated, and it is not a kind of material, but tens kinds of materials, these materials may cause cancer and other serious disease. The more important thing is, virus (i.e. influenza, SARS, bird flu etc.), germ can be survived in the particulate matter that this kind is very little and breed, it is attached in the particulate matter of air, produce a large amount of virus (i.e. influenza, SARS, bird flu etc.) dissociated and germ molecule in atmosphere, disease will be propagated. PM2.5Being that people endangers in air pollutant maximum fine particle, the diameter of this fine particle is equal to or less than 2.5 microns, PM2.5Medically crying and can enter lung particulate matter, in general the mouth mask of our surgery probably can have PM4Particulate can prevent, to PM2.5Just dying, to PM2.5It is generally that kind of mouth mask wanting N95 now, but that kind of mouth mask is very vexed, can not use for a long time. And protection fine particle and virus are very limited by this kind of N95 mouth mask.
In prior art, in response to different purposes and demand, mouth mask has different kinds and classification, is simply described as follows.
General mouth mask: this kind of mouth mask be not through extra process, and the hole of its fibrous texture quite big (about 1 micron), so the cause of disease through brone infection cannot effectively be stoped. In addition, general mouth mask is to what than the dust being easier to enter human respiratory system, and the not effect of protection, but the dust that what particle is big, still have the effect that some block. This kind of mouth mask can as warming, avoid ash head soil face and the purposes such as nostril is dirty, but not can be used as the use preventing germ intrusion.
Active carbon mask: activated carbon has mushy structure. The main function of its filtering layer is to adsorb organic gas, the molecule of tool stench and toxicity dust, not for Chalk-dust filtering, does not have a function of sterilization. But the use of activated carbon has a restriction, once all pores are all filled, just loses effectiveness, now must replace mouth mask, but when arrives saturation point and not very easily do not judge. Virus (i.e. influenza, SARS, bird flu etc.) particle can be attracted to mouth mask surface by activated carbon, but but " virus (i.e. influenza, SARS, bird flu etc.) cannot be killed ", therefore, hand, eye, nose or mouth surprisingly touch the active carbon mask surface used, and still likely cause the infection of disease.
Medical mouth mask: medical mask is mainly in order to avoid the spittle of doctor to affect patient, functional design is not to be avoided sucking granular nuisance, although its effect is better than cotton yarn mouth mask and cloth matter stamp mouth mask, but also only have the effect of 70% at most, blocking germ by such mouth mask, effect may be very limited. The surgical mouth mask of standard divides three layer, and skin has resistance dirt resistance effect, can prevent the spittle from entering inside mouth mask, and there is filteration in middle level, can block 5 micron particle of more than 90%, one layer of use as moisture absorption of nearly mouth nose.
Charged filter material mouth mask: the data display provided according to the 3M company of main production firm of this kind of mouth mask, the function of charged filter material is mainly convenient breathing, and is not to filter. This kind of mouth mask be actual, and what have filteration is one layer of carbon under being positioned at charged filter material. Its strobe utility may be identical with active carbon mask, and this represents that it and active carbon mask have identical use restriction. Wherein also have one layer so-called " attached outstanding resistance filtering material ", its role is to extend the life-span of mouth mask and increase comfort level.
The U.S. occupation health safety institute (NationalInstituteforOccupationalSafetyandHealth) recognizes, protective mouth mask is divided into three series, except N series, still there is P and R series, respectively containing 95,99 and 100 3 types, under being illustrated respectively in particular surroundings, the germ of 95,99 and 99.7% can be blocked.
Between SARS epizootic modeling, everybody falls over each other the N95 type mouth mask of panic buying, is the epidemic prevention mouth mask that the U.S. specifies anti-pulmonary tuberculosis germ, it is possible to effectively filters tubercule bacillus (diameter is about 0.3��0.6 micron, long 1��4 micron), prevents the infection via air. The standard of its inspection is test with 0.3 micron of sodium-chlor particulate, and barriering efficiency must reach more than 95%, and tests through wearer's face tightness, it is ensured that under closely connected face edge situation, and air can through mouth mask turnover. Therefore, human lung is caused the fine particle of 0.3 micron that is less than of irreversible damage to be very limited with the protection of virus by this kind of N95 mouth mask.
In prior art, the hole of general mouth mask is minimum is about 0.3 micron, and the size of SARS virus is about 0.08��0.14 micron, so general idea is all think that mouth mask can not filter SARS virus effectively.The World Health Organization (WHO) assert that SARS is droplet infection, it is not scatter individually in atmosphere that so-called droplet infection just describes virus, (hundreds of times that its size is about virus are big mainly to ensconce the mouth nose spittle, more than 0.3 micron) in, with therapeutic medical mouth mask, with regard to having, the spittle of more than 65% blocks efficiency for it, and therefore mouth mask is for the disease prevention of " droplet infection ", still has certain effectiveness.
Recently the nano photo-catalytic mouth mask being born has suitable sterilizing function, and its principle utilizes light-catalyzed reaction to come decomposing harmful substances and sterilization. Light-catalyzed reaction is by a kind of semiconductor light electroceramics as catalyst, to reach the object by adsorbent oxidation or reduction. Many semiconductor light electroceramics all can be used as photocatalyst, such as titanium dioxide (TiO2), zinc oxide (ZnO), Cadmium Sulfide (CdS) etc. At present using maximum photocatalysts to be titanium dioxide, it is except having great oxidation and induction ability, also has chemical stability, environmental sound, the advantage such as cheap. The nano protecting series mouth mask product that Jilin Province of China Wei Sheng science and trade Development Co., Ltd is newly developed, concentrate nano material technology, high-level efficiency filtration, sterilization material technology etc., with outstanding barrier propterty, obtained following patent: 1, folding nano protective mask. (the patent No.: 03252129). 2, anti-spittle antibacterial mask. (the patent No.: 03252128). 3, flat folding nano protective mask. (the patent No.: 03252131). 4, cup shaped nano protective mask. (the patent No.: 03252130).
Although prior art as above by filtering and is adsorbed and even photochemical catalysis, nanotechnology etc. provide anti-PM2.5, haze, anti-virus, a certain or a few functions in anti-bacteria mouth mask. But there is no any technology at present and product can meet anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), while anti-bacteria, it is provided that the mouth mask of highly air-permeable. And, most mouth mask all can not anti-PM2.5The entered lung particulate matter of size, has the minority anti-PM of energy2.5The mouth mask of entered lung particulate matter, as N95 type mouth mask or application by filtering and are adsorbed and even the mouth mask of nanotechnology of photochemical catalysis, but the mouth mask of these kinds when wearing load because of poor air permeability, allow people feel very vexed, can not life-time service.
Summary of the invention
For the above-mentioned deficiency of prior art, it is very good that the technical problem to be solved in the present invention is to provide a kind of ventilation property, and can anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the health care of anti-bacteria and medical mask.
The technical scheme of the present invention is: the sub-nanofiltration membrane mouth mask of the described anti-PM2.5 of a kind of highly air-permeable, haze, anti-virus, anti-bacteria, for health-care medical mouth mask, the same with the common mouth mask of prior art, comprising mouth mask body and respirator belt, mouth mask body is planeform or outwardly convex; Semi-ring is connected into, or what straight line respirator belt one termination was connected with mouth mask body, or straight line respirator belt is set on mouth mask body two side between respirator belt and mouth mask body; Respirator belt is force-loose or non-force-loose; It is characterized in that: the rectangle mask main body that described mouth mask body is made up of the ultra-thin sub-Nano filtering composite membrane filter core of the polymkeric substance of non-woven fabrics gauze mask material extexine, non-woven fabrics gauze mask material internal skin and centre; The ultra-thin sub-Nano filtering composite membrane filter core of polymkeric substance is highly air-permeable filter core, can realize anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria function;The ultra-thin sub-Nano filtering composite membrane filter core of described polymkeric substance is mutually closely formed by stacking by the ultra-thin rete of Subnano-class porous polymer and porous carrier layer, the described ultra-thin rete of Subnano-class porous polymer is adjacent with the extexine of described mouth mask body, and described porous carrier layer is adjacent with the internal skin of described mouth mask body.
The technical scheme that the present invention is further: the described ultra-thin rete of Subnano-class porous polymer is the ultra-thin rete that the Subnano-class porous polymer material distributed by uniform pore size is made, the aperture of this ultra-thin rete of Subnano-class porous polymer is 20-60 nanometer, and thickness is 0.1-1 micron.
The technical scheme that the present invention is further: the described ultra-thin rete of Subnano-class porous polymer is the ultra-thin rete that the Subnano-class porous polymer material distributed by asymmetric aperture is made, this ultra-thin rete of Subnano-class porous polymer expands 0.1-1 micron from the surface on the contact external top layer of mouth mask to the surperficial mean pore size of contact porous carrier layer to from 20-60 nanometer, and its thickness is: 0.08-0.16mm.
The present invention is technical scheme preferably: the bottom and upper segment of described mouth mask body is respectively equipped with top encapsulation weldering line ball and encapsulates weldering line ball below; The dual-side of described mouth mask body is respectively equipped with side encapsulation weldering line ball; The dual-side edge of described mouth mask body is respectively equipped with elastic ear hang.
The present invention is technical scheme preferably: the middle position of described mouth mask body is the rhythmo structure of venetian blind type. Can stretch up and down during use, be fit to face, and increase the permeability of mouth mask.
The present invention is technical scheme preferably: be packaged with nose clip between two encapsulation weldering line balls of said mouth mask body upper center.
The present invention is technical scheme preferably: the extexine of described mouth mask body is spun-bonded non-woven fabrics, and internal skin is spun-bonded non-woven fabrics or melt spraying non-woven fabrics. Spun-bonded non-woven fabrics can select polypropylene (PP) or polyethylene (PE) spun-bonded non-woven fabrics, and melt spraying non-woven fabrics can select polypropylene (PP) or polyethylene (PE) melt spraying non-woven fabrics.
The present invention is technical scheme preferably: the described ultra-thin rete of Subnano-class porous polymer is that a kind of raw material in following material is made:
Tetrafluoroethylene, Polytetrafluoroethylene, is abbreviated as PTFE;
Polyethersulfone, Polyethersulfone, is abbreviated as PES;
Poly(vinylidene fluoride), PolyvinylideneFluoride, is abbreviated as PVDF;
Polyetherimide, Polyetherimide, is abbreviated as PEI;
Acrylic copolymer, AcrylicCopolymer;
Polymeric amide, Polyamide, is abbreviated as PA;
Polyimide, Polyimides, is abbreviated as PI;
Poly-polyarylate, Polyarylates,
Polycarbonate, Polycarbonates, is abbreviated as PC;
Polyaryl ether or aryl ethers, Polyarylethers or arylethers;
Poly-aryl ketones or aryl ketones, Polyarylketones or arylketones;
Polyurethane(s); Polyethylene terephthalate;
Cellulose ethanoate; Poly-4-methylpentene;
Polymethyl siloxane/polycarbonate;
Silicon-containing polymer or polydimethylsiloxane wherein;
Silicon rubber or polyether block amide wherein, Polyetherblockamide, is abbreviated as PEBA.
The present invention is technical scheme preferably: described porous carrier layer is that a kind of in following material or two kinds or two or more raw materials are made:
Tetrafluoroethylene, Polytetrafluoroethylene, is abbreviated as PTFE;
Polyethersulfone, Polyethersulfone, is abbreviated as PES;
Poly(vinylidene fluoride), PolyvinylideneFluoride, is abbreviated as PVDF;
Polyethers, Polyetherimide, is abbreviated as PEI;
Polyester, such as: polyethylene terephthalate, PolyethyleneTerephthalate, is abbreviated as PET;
Acrylic copolymer, AcrylicCopolymer;
Polyimide, Polyimides, is abbreviated as PI;
Poly-polyarylate, Polyarylates,
Polycarbonate, Polycarbonates, is abbreviated as PC;
Polyaryl ether or aryl ethers, Polyarylethers or arylethers;
Poly-aryl ketones or aryl ketones, Polyarylketones or arylketones;
Polypropylene, Polypropylene, is abbreviated as PP;
The porousness non-woven fabrics of good permeability; Described porousness nonwoven cloth material comprises, but is not limited to, porousness polyester (Polyester) non-woven fabrics or porousness polysulfones (Polysulfone) non-woven fabrics or porousness nylon (Nylon) non-woven fabrics.
Mouth mask of the present invention is reasonable in design, and structure is simple and direct, have employed highly air-permeable polymkeric substance and makes ultra-thin sub-Nano filtering composite membrane layer as filtering membrane, and the aperture of this filtering membrane is 20-60 nanometer, belongs to Subnano-class, and its ventilation property is very good, and can anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria, make pendant load person comfortable and good for health.
The mouth mask that the ultra-thin sub-Nano filtering composite membrane filter core of the described highly air-permeable polymkeric substance of application the present invention manufactures, not only shows its efficient anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria performance characteristic on, but also it is very good to have ventilation property, therefore, can provide the pure air of pure and fresh health to people, and then can widely as anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the health care of anti-bacteria and medical mask.
Accompanying drawing explanation
Fig. 1 is mouth mask one embodiment one-piece construction schematic diagram of the present invention
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1;
Fig. 3 is the production unit structural representation of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance;
Fig. 4 is the schematic diagram of the air permeability testing apparatus of the ultra-thin sub-Nano filtering composite membrane filter core of test highly air-permeable polymkeric substance;
Fig. 5 is the schematic diagram of the virus obstruction performance testing device of the ultra-thin sub-Nano filtering composite membrane filter core of test highly air-permeable polymkeric substance;
In figure: 1 mouth mask body; 2 extexines; 3 internal skins; The ultra-thin sub-Nano filtering composite membrane filter core of 4 polymkeric substance; The 5 ultra-thin retes of Subnano-class porous polymer; 6 porous carrier layers; 7 mouth mask elastic ear are hung; 8 top encapsulation weldering line balls; 9 encapsulate weldering line ball below; 10 side encapsulation weldering line balls; 11 nose clips; The rhythmo structure of 12 venetian blind types; Conveying roller in 13 baking ovens, 14 air purge assist conveying roller; 15 finished product composite membrane filter core rolling cylinders; 16 material cylinders; 17 computer control systems; 18 porous carrier layer material web; 19 porous carrier layer material web amplification effect figure; 20 support coating travelling belts; 21 coating solution storage vessels; 22 coating solutions; 23 first transfer rollers; 23a the 2nd transfer roller; 23b the 3rd transfer roller; 24 finished product composite membrane filter core stocking systems; 25 coating solution transport pipes; 26 high-accuracy volume pumps; The ultra-thin sub-Nano filtering composite membrane filter core of 27 finished product highly air-permeable polymkeric substance;28 coating solution spray equipments; The 29 ultra-thin sub-Nano filtering composite membrane thin slices of wet highly air-permeable polymkeric substance; 30 air vout pipelines; The amplification effect figure of the 31 highly air-permeable ultra-thin retes of Subnano-class porous polymer; 32 thermograde controllable oven; The nitrogen purge system of 33 preheatings; The nitrogen inlet of the preheating of 34 thermograde controllable oven; The nitrogen of 35 thermograde controllable oven and solvent outlet; Solvent and the nitrogen separation of 36 solvent condenses and condensation, reclaim and recycle system; 37 air purge cooling cuticula devices; 38 first cables; 39 the 2nd cables; 39a the 3rd cable; The air vout of 40 air purge cooling cuticula devices; The air intlet of 41 air purge cooling cuticula devices; 42 oil-free air compressors; 43 air lines; 44 air filters; 45 instrument air dryers; 46 clean dry air delivery pipe roads; 47 the 2nd test samples; 48 two stage biological safety cabinets; The outlet of 49 infiltration gas; 50 gas flow rate gaugers; The container of 51 collection virus liquid; 52 collection virus liquid; 53 infiltration airways; 54 first air containers; 55 first air pressure setters; 56 first air lines; 57 air permeability test boxs; 58 test box air intlets; 59 first holder nets; 60 first gas-pressure meters; 61 pass through the outlet of gas; 62 pass through the gas pipeline of gas; 63 gas flow rate gaugers; 64 atmosphere connection ports; 65 the 2nd air containers; 66 the 2nd air lines; 67 air velocity controllers; 68 containing the buffered soln testing virus; The container of 69 buffered soln; 70 aerosol generators; 71 containing the air lead testing virus; 72 composite membrane viruses hinder the test box of performance; 73 air intlets containing test virus; The 74 offgas outlet conduits containing test virus; 75 the 2nd gas-pressure meters; 76 air pressure setters; 77 offgas outlet containing test virus; 78 the 2nd holder nets; 79 ooze vent outlet; 100 first test samples.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention and relevant technical problem are described in further detail. Fig. 1 is a wherein example structure schematic diagram of the sub-nanofiltration membrane mouth mask of a kind of anti-PM2.5 of highly air-permeable of the present invention, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria. As shown in fig. 1, described sub-nanofiltration membrane mouth mask comprises mouth mask body 1 and respirator belt 7, and mouth mask body is square planar shape mouth mask body, and position, intermediate portion is the rhythmo structure 12 of venetian blind type, it may also be useful to time can stretch up and down, is fit to face, and increases permeability. This mouth mask is with low cost simultaneously, and adaptation is good, filter effect height, is not subject to the restriction of envrionment temperature after wearing, and protection effect is clearly. Described respirator belt 7 is elastic ear extension, is arranged on the both sides of mouth mask body, and when the rhythmo structure 12 that this respirator belt 7 and mouth mask body 1 are venetian blind type uses simultaneously, mouth mask can reach excellent sealing effect and highly air-permeable. As shown in Figure 2, in the present invention, mouth mask body is made up of the ultra-thin sub-Nano filtering composite membrane filter core 4 of the polymkeric substance of non-woven fabrics gauze mask material extexine 2, non-woven fabrics gauze mask material internal skin 3 and centre, it should be noted that, in order to distinguish level in the A-A sectional structure schematic diagram of Fig. 2 mouth mask body, leaving bigger space between the ultra-thin sub-Nano filtering composite membrane filter core 4 of the highly air-permeable polymkeric substance being placed between the external top layer of mouth mask 2 and internal skin 3 and the inner and outer surface layers of mouth mask body, they should be (as follows) that adjoin each other closely in fact.The ultra-thin sub-Nano filtering composite membrane filter core 4 of polymkeric substance described in the present invention is mutually closely formed by stacking by the ultra-thin rete 5 of Subnano-class porous polymer and porous carrier layer 6, the good permeability of the ultra-thin rete 5 of Subnano-class porous polymer, has the effect of extremely strong anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria. So that not only permeability is very good for mouth mask, and there is effect of extremely strong anti-PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), anti-bacteria therefore; The described ultra-thin rete of Subnano-class porous polymer 5 is adjacent with the extexine 2 of described mouth mask body 1, and described porous carrier layer 6 is adjacent with the internal skin 3 of described mouth mask body 1. In Fig. 1, the mode of connection of mouth mask body adopts optimum weldering pressure mode, bottom and upper segment in mask main body has two parallel encapsulation weldering line balls respectively, the both sides of mouth mask body are respectively equipped with side encapsulation weldering line ball 10, the internal skin 3 of mouth mask body and extexine 2 encapsulate weldering with the ultra-thin sub-Nano filtering composite membrane filter core 4 of polymkeric substance by top encapsulation weldering line ball 8, below encapsulation weldering line ball 9 and dual-side encapsulation weldering line ball 10 and are pressed into one, and elastic ear is hung 7 and is installed with on the edge of mask main body both sides through encapsulation weldering. In order to more effectively prevent mouth mask from having the generation of phenomenon of leaking hunting in nose both sides in use, the present invention is packaged with nose clip 11 between two top encapsulation weldering line balls 8 of mask main body upper center its nose areas corresponding.
The material of the body of mouth mask described in the present invention 1 can be gauze or the common used material of cloth or non-woven fabrics or other making mouth mask, the extexine of mouth mask body is preferably spun-bonded non-woven fabrics, such as polypropylene (PP) or polyethylene (PE) spunbond layer, internal skin is preferably spun-bonded non-woven fabrics or melt spraying non-woven fabrics, such as polypropylene (PP) or polyethylene (PE) spunbond layer, polypropylene (PP) or polyethylene (PE) meltblown layer, the mode of connection of mouth mask body is except welding machine pressure mode, can also be that sewer connects, or bonding connection, or other conventional mode of connection (as follows) of the prior art.
Porous carrier layer 6 described in the present invention is that the applicant is prepared from the polymer raw material that prior art is known, it can be one layer of a kind of porous support raw material composition, can also be that two kinds of porous support raw materials are closely formed by stacking successively, the present invention not only requiring, selected porous carrier layer 6 has enough physical strengths, and the pore diameter range of selected porous carrier layer 6 is 0.1-1 micron, there is very high ventilative rate; The ventilative rate of selected porous carrier layer 6 is at least that the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer in the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance is breathed freely more than 20 times of rate.
The known polymer raw material that the ultra-thin rete of the Subnano-class porous polymer of highly air-permeable described in the present invention 5 is the applicant's prior art is prepared from, the ultra-thin rete of Subnano-class porous polymer 5 can be the ultra-thin rete that the Subnano-class porous polymer material distributed by uniform pore size is made, and the aperture of this ultra-thin rete of Subnano-class porous polymer is 20-60 nanometer, it can also be the ultra-thin rete that the Subnano-class porous polymer material distributed by asymmetric aperture is made, this ultra-thin rete of Subnano-class porous polymer expands 0.1-1 micron from the surface on the contact external top layer of mouth mask to the surperficial mean pore size of contact porous carrier layer to from 20-60 nanometer, this ultra-thin rete of Subnano-class porous polymer is that the polymer materials by multilayer different pore size applies on a carrier layer and forms multilayered structure in fact, the one layer of aperture being wherein close to porous carrier layer 6 is maximum, and the aperture close to porous carrier layer 6, and the one layer of aperture being close to the external top layer 2 of mouth mask is necessary for 20-60 nanometer, guarantee to filter the PM2.5 that particle diameter is less than 60 nanometers, haze, virus and germ, playing can in case PM2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the function of anti-bacteria.
The manufacture method of the ultra-thin sub-Nano filtering composite membrane filter core 4 of polymkeric substance being described below by different embodiments, Fig. 3 has anti-PM for mouth mask in following examples2.5, haze, anti-virus (i.e. anti-influenza, anti-SARS, avian influenza-prevention etc.), the ultra-thin sub-a kind of Preparation equipment of Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance of anti-bacteria function and the schematic diagram of technique, the method of this filter core of preparation is called solution coatings continuous production method by the applicant, and described production method will be described by following examples and describe.
Embodiment one: the present invention's application polyetherimide is as the material of the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer, and polyethylene terephthalate is as porous carrier layer 6. The material characteristics of described polyethylene terephthalate shows: pore diameter range is 0.1-1 micron, and thickness is 0.12 millimeter, and porosity is 68%. Therefore, the material of selected described polyethylene terephthalate has enough physical strengths and permeability, especially the pore size distribution speciality of its outstanding material characteristics is suitable as the carrier layer manufacturing the ultra-thin sub-Nano filtering composite membrane coating of highly air-permeable polymkeric substance very much, the material of described polyethylene terephthalate is conventional commercial raw material, therefore, the material manufacture of described polyethylene terephthalate is the technical problem outside content of the present invention, is not repeated herein. According to the as above selected material manufacturing the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance, preparing the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance with the continuous mode of production, its concrete production stage, process and method are described below:
1, polyetherimide is dissolved in the solvent of 80/20 (weight ratio) tetrahydrofuran (THF) (THF) or dimethyl formamide (DMF), forms the polyetherimide amine aqueous solution of 12wt%; Wherein the boiling point of tetrahydrofuran (THF) (THF) is 66 DEG C; The boiling point of dimethyl formamide (DMF) is 153 DEG C;
2, the polyethylene terephthalate substrate as porous carrier layer 6 is rolled on material cylinder 16, and it is placed in described transmission system and forms production line;
3, as shown in Figure 3, the coating solution of the polyetherimide containing described 12wt% is introduced in the container 21 in coating solution storage pond, first described coating solution 22 is connected with high-accuracy volume pump 26 by coating solution transport pipe 25, then described coating solution 22 by the coating solution transport pipe 25 of high-accuracy volume pump 26 through being connected with coating solution spray equipment 28 to design predetermined flow introducing warp and coating solution spray equipment 28; The dissolution homogeneity of the polyetherimide of described 12wt% is coated in the surface of porous carrier layer of described polyethylene terephthalate by the uniform rotation of described support coating travelling belt 20 through coating solution spray equipment 28 by the porous carrier layer 6 of described polyethylene terephthalate, and the operating parameters of described coating solution spray equipment 28 is connected by the 3rd cable 39a and computer control system 17 and controls; On the porous carrier layer of described polyethylene terephthalate, the polymeric coating of the coating solution of the polyetherimide of 12wt% is formed through solution spraying method;
4, as shown in Figure 3, it is sent in described thermograde controllable oven 32 to dry by ultra-thin for the wet highly air-permeable polymkeric substance scribbling the polymeric coating solution of the solution of the polyetherimide of described 12wt% sub-Nano filtering composite membrane thin slice 29, the solution of the polyetherimide of described 12wt% is made to form the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer at porous carrier layer 6 substrate surface of described polyethylene terephthalate, the aperture of the described ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer is 46 �� 12 nanometers (in normal distributions), thickness is 0.6 �� 0.1 micron.The process cooling cuticula device 37 through follow-up air purge gets product the ultra-thin sub-Nano filtering composite membrane filter core 27 of highly air-permeable polymkeric substance; The last described process ultra-thin sub-Nano filtering composite membrane filter core 27 of highly air-permeable polymkeric substance that gets product enters in the finished product composite membrane filter core stocking system 24 of the ultra-thin sub-Nano filtering composite membrane filter core of finished product highly air-permeable polymkeric substance, gets up by finished product composite membrane filter core rolling cylinder 15 rolling in finished product composite membrane filter core stocking system 24.
In the present embodiment, as shown in Figure 3, the operating parameters of described thermograde controllable oven 32 is connected by the first cable 38 and computer control system 17 and controls; The operating parameters of the nitrogen purge system 33 of described preheating is connected by the 2nd cable 39 and computer control system 17 and controls. The nitrogen purge flow velocity of the nitrogen purge system 33 of described preheating is 12L (STP)/min, and nitrogen used is provided by the nitrogen purge system 33 of preheating, and the purity of nitrogen used is greater than 99.9%. The thermograde of described thermograde controllable oven 32 linearly rises from 40 �� 2 DEG C of thermograde controllable oven 32 import to 100 �� 2 DEG C of outlet; The residence time of described thermograde controllable oven 32 is 36 minutes.
In the present embodiment, as shown in Figure 3, tetrahydrofuran (THF) and the solvent dimethylformamide of the evaporation of described thermograde controllable oven 32 enter solvent and the nitrogen separation of solvent condenses and condensation through nitrogen and the solvent outlet 35 of described thermograde controllable oven, reclaim and recycle system 36, the steam of tetrahydrofuran (THF) and solvent dimethylformamide after solvent condenses with nitrogen separation, solvent and nitrogen is recyclable recycles, reaches not only economy but also the object of the technological process of the circulation Sustainable development of environmental protection.
In the present embodiment, as shown in Figure 3, the process of the cuticula system of the ultra-thin sub-Nano filtering composite membrane 4 of highly air-permeable polymkeric substance be application of air blow sweep cooling cuticula device 37 under room temperature without humidity, cleaning air purge cooling, can be used for removing any tetrahydrofuran (THF) still remained after the ultra-thin sub-Nano filtering composite membrane 4 drying system of highly air-permeable polymkeric substance processes and solvent dimethylformamide, and the temperature of ultra-thin for highly air-permeable polymkeric substance sub-Nano filtering composite membrane 4 is dropped to the finished product composite membrane filter core stocking system 24 transferring the ultra-thin sub-Nano filtering composite membrane filter core of finished product highly air-permeable polymkeric substance after room temperature. it is that the air intlet 41 cooling cuticula device by air purge after air line 43, instrument air dryer 45 and air filter 44 process by oil-free air compressor 42 enters air purge cooling cuticula device 37 for air purge described without humidity, cleaning air, discharge by the air vout 40 of air purge cooling cuticula device after the ultra-thin sub-Nano filtering composite membrane 4 of air purge highly air-permeable polymkeric substance, then discharge through air vout pipeline 30. the flow velocity of air purge is 60L (STP)/min.
The ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance is named to apply polyetherimide as the highly air-permeable ultra-thin rete of Subnano-class porous polymer 5 with using polyethylene terephthalate as the ultra-thin sub-Nano filtering composite membrane 4 of the highly air-permeable polymkeric substance of porous carrier layer 6 by what production in above-described embodiment obtained.
Embodiment two: the present invention's application polyethersulfone (Polyethersulfone is abbreviated as PES) is as the material of the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer, and tetrafluoroethylene is as porous carrier layer 6. The material characteristics of described tetrafluoroethylene shows: pore diameter range is 0.05-1.2 micron, and thickness is 0.14 millimeter, and porosity is 72%.Therefore, the material of selected described tetrafluoroethylene has enough physical strengths and permeability, especially the pore size distribution speciality of its outstanding material characteristics is suitable as the carrier layer manufacturing the ultra-thin sub-Nano filtering composite membrane coating of highly air-permeable polymkeric substance very much, the material of described tetrafluoroethylene is conventional commercial raw material, therefore, the material manufacture of described tetrafluoroethylene is the technical problem outside content of the present invention, is not repeated herein. According to the as above selected material manufacturing the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance, preparing the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance with the continuous mode of production, its concrete production stage, process and method are described below:
1, being dissolved in by polyethersulfone in the solvent of N-Methyl pyrrolidone (N-methylpyrrolidone is abbreviated as NMP), form the polyethersulfone solution of 16wt%, the boiling point of N-Methyl pyrrolidone (NMP) is 202 DEG C;
2, the polytetrafluoroethylsubstrate substrate as porous carrier layer 6 is rolled on material cylinder 16, and it is placed in described transmission system and forms production line;
3, as shown in Figure 3, coating solution containing described 16wt% polyethersulfone is introduced in the container 21 in coating solution storage pond, first described coating solution 22 is connected with high-accuracy volume pump 26 by coating solution transport pipe 25, then described coating solution 22 by the coating solution transport pipe 25 of high-accuracy volume pump 26 through being connected with coating solution spray equipment 28 to design predetermined flow introducing warp and coating solution spray equipment 28. The dissolution homogeneity of described 16wt% polyethersulfone is coated in the surface of porous carrier layer of described tetrafluoroethylene by the uniform rotation of described support coating travelling belt 20 through coating solution spray equipment 28 by the porous carrier layer 6 of described tetrafluoroethylene, and the operating parameters of described coating solution spray equipment 28 is connected by the 3rd cable 39a and computer control system 17 and controls; On the porous carrier layer of described tetrafluoroethylene, the polymeric coating of the coating solution of 16wt% polyethersulfone is formed through solution spraying method;
4, as shown in Figure 3, it is sent in described thermograde controllable oven 32 to dry by ultra-thin for the wet highly air-permeable polymkeric substance scribbling the polymeric coating solution of the solution of described 16wt% polyethersulfone sub-Nano filtering composite membrane thin slice 29, making the solution of described 16wt% polyethersulfone form the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer at porous carrier layer 6 substrate surface of described tetrafluoroethylene, the aperture of the described ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer is 40 �� 10 nanometers (in normal distributions), thickness is 0.8 �� 0.1 micron. The process cooling cuticula device 37 through follow-up air purge gets product the ultra-thin sub-Nano filtering composite membrane filter core 27 of highly air-permeable polymkeric substance. The last described process ultra-thin sub-Nano filtering composite membrane filter core 27 of highly air-permeable polymkeric substance that gets product enters the finished product composite membrane filter core stocking system 24 of the ultra-thin sub-Nano filtering composite membrane filter core of finished product highly air-permeable polymkeric substance, and rolls up and be received on the finished product composite membrane filter core rolling cylinder 15 in finished product composite membrane filter core stocking system 24.
In the present embodiment, as shown in Figure 3, the operating parameters of described thermograde controllable oven 32 is connected by the first cable 38 and computer control system 17 and controls; The operating parameters of the nitrogen purge system 33 of described preheating is connected by the 2nd cable 39 and computer control system 17 and controls. The nitrogen purge flow velocity of the nitrogen purge system 33 of described preheating is 12L (STP)/min, and nitrogen used is provided by the nitrogen purge system 33 of preheating, and the purity of nitrogen used is greater than 99.9%.The thermograde of described thermograde controllable oven 32 drops to 40 �� 2 DEG C (i.e. entrance ends of thermograde controllable oven) linearly from 120 �� 2 DEG C of the nitrogen inlet 34 (i.e. the exit end of thermograde controllable oven) of the preheating of thermograde controllable oven 32; The residence time of described thermograde controllable oven 32 is 66 minutes.
In the present embodiment, as shown in Figure 3, the N-Methyl pyrrolidone solvent of described thermograde controllable oven 32 evaporation enters solvent and the nitrogen separation of solvent condenses and condensation through nitrogen and the solvent outlet 35 of described thermograde controllable oven, reclaims and recycle system 36, the steam of N-Methyl pyrrolidone solvent after solvent condenses with nitrogen separation, solvent and nitrogen is recyclable recycles, reaches not only economy but also the object of the technological process of the circulation Sustainable development of environmental protection.
In embodiment two, as shown in Figure 3, the process of the cuticula system of the ultra-thin sub-Nano filtering composite membrane 4 of highly air-permeable polymkeric substance be application of air blow sweep cooling cuticula device 37 under room temperature without humidity, cleaning air purge cooling, can be used for removing any N-Methyl pyrrolidone solvent still remained after the ultra-thin sub-Nano filtering composite membrane 4 drying system of highly air-permeable polymkeric substance processes, and the temperature of ultra-thin for highly air-permeable polymkeric substance sub-Nano filtering composite membrane 4 is dropped to the finished product composite membrane filter core stocking system 24 transferring the ultra-thin sub-Nano filtering composite membrane filter core of finished product highly air-permeable polymkeric substance after room temperature. it is that the air intlet 41 cooling cuticula device by air purge after air line 43, instrument air dryer 45 and air filter 44 process by oil-free air compressor 42 enters air purge cooling cuticula device 37 for air purge described without humidity, cleaning air, discharge by the air vout 40 of air purge cooling cuticula device after the ultra-thin sub-Nano filtering composite membrane 4 of air purge highly air-permeable polymkeric substance, then discharge through air vout pipeline 30. the flow velocity of air purge is 60L (STP)/min.
It is obtained to apply polyethersulfone as the highly air-permeable ultra-thin rete of Subnano-class porous polymer 5 with using tetrafluoroethylene as the highly air-permeable polymkeric substance of the porous carrier layer 6 ultra-thin sub-Nano filtering composite membrane filter core B of ultra-thin sub-Nano filtering composite membrane 4 called after highly air-permeable polymkeric substance by above-mentioned embodiments of the invention are produced.
Embodiment three: the present invention application polyethersulfone (Polyethersulfone, it is abbreviated as PES) as the material of the ultra-thin rete 5 of highly air-permeable Subnano-class porous polymer of asymmetric aperture distribution, the extraordinary porousness polyester non-woven fabric of ventilation property is as porous carrier layer 6. The material characteristics of described porousness polyester non-woven fabric shows: pore diameter range is 0.08-1.6 micron, and thickness is 0.16 millimeter, and porosity is 86%. The material of selected described polyester has enough physical strengths and outstanding permeability, it is suitable as very much the carrier layer of the ultra-thin sub-Nano filtering composite membrane coating of the highly air-permeable polymkeric substance manufacturing asymmetric aperture distribution, the material of described polyester is conventional commercial raw material, therefore, the material manufacture of described polyester is the technical problem outside content of the present invention, is not repeated herein. According to the as above selected material manufacturing the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance, prepare the ultra-thin sub-Nano filtering composite membrane filter core 4 of highly air-permeable polymkeric substance of asymmetric aperture distribution with the continuous mode of production, its concrete production stage, process and method are described below:
1, polyethersulfone is dissolved in the solvent of N-Methyl pyrrolidone (N-methylpyrrolidone is abbreviated as NMP), forms the polyethersulfone solution of 6wt%;The boiling point of wherein said N-Methyl pyrrolidone (NMP) is 202 DEG C;
2, the polyester non-woven fabric substrate as porous carrier layer 6 is rolled on material cylinder 16, and it is placed in described transmission system and forms production line;
3, as shown in Figure 3, coating solution containing described 6wt% polyethersulfone is introduced in coating solution storage vessel 21, first described coating solution 22 is connected with high-accuracy volume pump 26 by coating solution transport pipe 25, then described coating solution 22 is passed through the coating solution transport pipe 25 being connected with coating solution spray equipment 28 to design in predetermined flow introducing coating solution spray equipment 28 by high-accuracy volume pump 26, the porous carrier layer 6 of described polyester is by the uniform rotation of described support coating travelling belt 20, through coating solution spray equipment 28, the dissolution homogeneity of described 6wt% polyethersulfone is coated in the surface of porous carrier layer of described polyester again, the operating parameters of described coating solution spray equipment 28 is connected by the 3rd cable 39a and computer control system 17 and controls, on the porous carrier layer of described polyester, the polymeric coating of the coating solution of 6wt% polyethersulfone is formed through solution spraying method,
4, as shown in Figure 3, it is sent in described thermograde controllable oven 32 to dry by ultra-thin for the wet highly air-permeable polymkeric substance scribbling the polymeric coating solution of the solution of described 6wt% polyethersulfone sub-Nano filtering composite membrane thin slice 29, the solution of 6wt% polyethersulfone is made to form, at porous carrier layer 6 substrate surface of described polyester, the external surface coating of the ultra-thin rete 5 of Subnano-class porous polymer that aperture is the asymmetric aperture distribution of 0.5-2 micron, namely process through follow-up air purge cooling cuticula device 37 obtains the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of the work in-process asymmetric aperture distribution of first time coating, its first time the thickness of coating and aperture be respectively (in the normal distribution) of 0.05-0.2 micron and 80-120 nanometer, then the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of first time coated semi finished product asymmetric aperture distribution is sent in finished product composite membrane filter core stocking system 24,
5, polyethersulfone is dissolved in the solvent of N-Methyl pyrrolidone (N-methylpyrrolidone is abbreviated as NMP), forms the polyethersulfone solution of 12wt%;
6, by the action of the ultra-thin sub-Nano filtering composite membrane filter core repeating step 1 of highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution of described first time coating, it is rolled on material cylinder 16 as coated substrate, and it is placed in described transmission system and forms production line;
7, as shown in Figure 3, coating solution containing described 12wt% polyethersulfone is introduced in coating solution storage vessel 21, first described coating solution is connected with high-accuracy volume pump 26 by coating solution transport pipe 25, then by the coating solution transport pipe 25 of high-accuracy volume pump 26 through being connected with coating solution spray equipment 28 to design in predetermined flow introducing coating solution spray equipment 28; Described first time, the dissolution homogeneity of described 12wt% polyethersulfone was coated in the surface of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution of described first time coating through coating solution spray equipment 28 by the uniform rotation of described support coating travelling belt 20 by the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution of coating again, and the operating parameters of described coating solution spray equipment 28 is connected by the 3rd cable 39a and computer control system 17 and controls;Through solution spraying method described first time coating the distribution of half-finished asymmetric aperture the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance on form the polymeric coating of coating solution of 12wt% polyethersulfone;
8, as shown in Figure 3, it is sent in described thermograde controllable oven 32 to dry by ultra-thin for the wet highly air-permeable polymkeric substance scribbling the polymeric coating solution of the solution of described 12wt% polyethersulfone sub-Nano filtering composite membrane thin slice, make the solution of described 12wt% polyethersulfone described first time coating the ultra-thin sub-Nano filtering composite membrane cartridge surface of highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution form the external surface coating of the ultra-thin rete 5 of Subnano-class porous polymer that aperture is the asymmetric aperture distribution of 80-120 nanometer, namely process through follow-up air purge cooling cuticula device 37 obtains the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of the work in-process asymmetric aperture distribution of second time coating, thickness and the aperture of its second time coating are respectively 0.05-0.2 micron and 60-100 nanometer (in normal distribution), then process in the finished product composite membrane filter core stocking system 24 described in the ultra-thin sub-Nano filtering composite membrane filter core feeding of highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution of the second time coating obtained,
9, polyethersulfone is dissolved in the solvent of N-Methyl pyrrolidone (N-methylpyrrolidone is abbreviated as NMP), forms the polyethersulfone solution of 16wt%;
10, the ultra-thin sub-Nano filtering composite membrane filter core of the highly air-permeable polymkeric substance half-finished asymmetric aperture of described second time coating distributed is as the action of coated substrate repeating step 1, it is rolled on material cylinder 16, and it is placed in described transmission system and forms production line;
11, as shown in Figure 3, coating solution containing described 16wt% polyethersulfone is introduced in coating solution storage vessel 21, first described coating solution is connected with high-accuracy volume pump 26 by coating solution transport pipe 25, then described coating solution 22 by the coating solution transport pipe 25 of high-accuracy volume pump 26 through being connected with coating solution spray equipment 28 to design predetermined flow introducing warp with in coating solution spray equipment 28; The ultra-thin sub-Nano filtering composite membrane filter core of the highly air-permeable polymkeric substance of half-finished asymmetric aperture distribution of described second time coating is by the uniform rotation of described support coating travelling belt 20, through coating solution spray equipment 28, the dissolution homogeneity of described 16wt% polyethersulfone being coated in the ultra-thin sub-Nano filtering composite membrane cartridge surface of highly air-permeable polymkeric substance of work in-process asymmetric aperture distribution of second time coating again, the operating parameters of described coating solution spray equipment 28 is connected by the 3rd cable 39a and computer control system 17 and controls; The ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance distributed in half-finished asymmetric aperture of described second time coating through solution spraying method is formed the polymeric coating of the coating solution of 16wt% polyethersulfone;
12, as shown in Figure 3, it is sent in described thermograde controllable oven 32 to dry by ultra-thin for the wet highly air-permeable polymkeric substance scribbling the polymeric coating solution of the solution of described 16wt% polyethersulfone sub-Nano filtering composite membrane thin slice, the solution of described 16wt% polyethersulfone is made to form, in the ultra-thin sub-Nano filtering composite membrane cartridge surface of highly air-permeable polymkeric substance that half-finished asymmetric aperture of described second time coating distributes, the external surface coating of the ultra-thin rete 5 of Subnano-class porous polymer that aperture is the asymmetric aperture distribution of 60-100 nanometer, through the ultra-thin sub-Nano filtering composite membrane filter core 27 of highly air-permeable polymkeric substance of the asymmetric aperture distribution that the process of follow-up air purge cooling cuticula device 37 gets product, the ultra-thin sub-Nano filtering composite membrane filter core 27 of the highly air-permeable polymkeric substance of this asymmetric aperture distribution third time coat-thickness and aperture be respectively 0.3 �� 0.05 micron and 40 �� 5 nanometers (in normal distribution), the ultra-thin sub-Nano filtering composite membrane filter core 27 of the highly air-permeable polymkeric substance of the finished product asymmetric aperture distribution finally process obtained enters in described finished product composite membrane filter core stocking system 24,
In embodiment three, as shown in Figure 3, the operating parameters of described thermograde controllable oven 32 is connected by the first cable 38 and computer control system 17 and controls; The operating parameters of the nitrogen purge system 33 of described preheating is connected by the 2nd cable 39 and computer control system 17 and controls. Nitrogen used is provided by nitrogen purge system 33, and the purity of nitrogen is greater than 99.9%, and the nitrogen purge flow velocity of the nitrogen purge system 33 of described preheating is 12L (STP)/min. The thermograde of thermograde controllable oven 32 described in described first time coating, second time coating and third time coating is dropped to 40 �� 2 DEG C (i.e. entrance ends of thermograde controllable oven) linearly from 106 �� 2 DEG C, 112 �� 2 DEG C and 120 �� 2 DEG C of the nitrogen inlet 34 (i.e. the exit end of thermograde controllable oven) of the preheating of thermograde controllable oven 32 respectively; The residence time of described thermograde controllable oven 32 is 66 minutes.
In embodiment three, as shown in Figure 3, described first time coating, second time coating and third time coating kind in, the N-Methyl pyrrolidone solvent of described thermograde controllable oven 32 evaporation enters solvent and the nitrogen separation of solvent condenses and condensation through nitrogen and the solvent outlet 35 of described thermograde controllable oven, reclaims and recycle system 36, the steam of N-Methyl pyrrolidone solvent after solvent condenses with nitrogen separation, solvent and nitrogen is recyclable recycles, reaches the object of the circulation Sustainable development of economic environmental protection.
In embodiment three, as shown in Figure 3, in described first time coating, second time coating, with in third time coating, the ultra-thin sub-Nano filtering composite membrane filter core of the highly air-permeable polymkeric substance of asymmetric aperture distribution, the ultra-thin sub-Nano filtering composite membrane filter core of the highly air-permeable polymkeric substance of asymmetric aperture distribution, the process of the cuticula system of the ultra-thin sub-Nano filtering composite membrane filter core of the highly air-permeable polymkeric substance of asymmetric aperture distribution be all application of air blow sweep cooling cuticula device 37 under room temperature without humidity, cleaning air purge cooling, can be used for removing first time coating, second time coating, with any N-Methyl pyrrolidone solvent that third time coating drying system still remains after processing, and by first time coating, second time coating, the temperature of the ultra-thin sub-Nano filtering composite membrane of the highly air-permeable polymkeric substance of the work in-process formed with third time coating or the distribution of finished product asymmetric aperture drops to the finished product composite membrane filter core stocking system 24 of the ultra-thin sub-Nano filtering composite membrane of highly air-permeable polymkeric substance of the asymmetric aperture distribution transferring work in-process or finished product after room temperature. it is that the air intlet 41 cooling cuticula device by air purge after air line 43, instrument air dryer 45 and air filter 44 process by oil-free air compressor 42 enters air purge cooling cuticula device 37 for air purge described without humidity, cleaning air, discharge by the air vout 40 of air purge cooling cuticula device after the ultra-thin sub-Nano filtering composite membrane of the highly air-permeable polymkeric substance of the asymmetric aperture distribution of air purge work in-process or finished product, then discharge through air vout pipeline 30. the flow velocity of air purge is 60L (STP)/min.
Produce obtained to apply the highly air-permeable ultra-thin rete of Subnano-class porous polymer 5 that polyethersulfone distributes as asymmetric aperture and using polyester as the highly air-permeable polymkeric substance of the porous carrier layer 6 ultra-thin sub-Nano filtering composite membrane filter core C of ultra-thin sub-Nano filtering composite membrane 4 called after highly air-permeable polymkeric substance by the embodiment of the present invention three.Owing to the processing method of this kind of laminated coating can strictly control the pore size distribution of each coating, therefore, described in it, the permeability of the highly air-permeable ultra-thin rete of Subnano-class porous polymer 5 of asymmetric aperture distribution is extremely outstanding, and separating layer (i.e. the pore size distribution of final coating) can be strict controlled in designed scope.
Ventilative rate of permeation and the virus of the air of the ultra-thin sub-Nano filtering composite membrane filter core B of the ultra-thin sub-Nano filtering composite membrane filter core A of the highly air-permeable polymkeric substance that it is manufactured by applicant, highly air-permeable polymkeric substance and the ultra-thin sub-Nano filtering composite membrane filter core C of highly air-permeable polymkeric substance hinder performance to test, below concise and to the point detection method and the test-results describing correlation test.
In the present invention, the process of concrete air ventilation property testing method and step can be described below: the testing apparatus that the air permeability of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance can apply the air permeability for detecting composite membrane as shown in Figure 4 is directly tested. The major parts of the testing apparatus of described air permeability comprises the first air container 54, first air pressure setter 55, air permeability test box 57, first gas-pressure meter 60, and gas velocimeter measuring device 63. Air purity in first air container 54 will be greater than 99.99%, and its air consists of the oxygen of 20.98% (mole) and the nitrogen of 79.02% (mole). Pressure shown on gas-pressure meter 60 is gauge pressure (i.e. P Pa, wherein P is gaseous tension, PaFor barometric point) or it is called the barometric pressure difference with the external world. Diameter for the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance in the air permeability test box 57 of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance is 190 millimeters, the ultra-thin sub-Nano filtering composite membrane filter core ventilation property Validity Test diameter of highly air-permeable polymkeric substance is 168 millimeters, and its external diameter 11 millimeters will be used for the sealing of the ultra-thin sub-Nano filtering composite membrane filter core periphery of highly air-permeable polymkeric substance. Therefore, composite membrane ventilation property Validity Test area is��22156 square millimeters (or 221.56 square centimeters).
The tapping machine that applicant's random diameter from the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance prepared by embodiment one is 190 millimeters stamps out 3 samples, and is marked as sample A1, sample A2 and sample A3 respectively with label. Just the process of concrete testing method and step are described below below:
1, by described first test sample 100, the i.e. sample A1 of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance, by shown in Fig. 4, it is arranged in the ultra-thin sub-Nano filtering composite membrane cartridge air permeability test box 57 of highly air-permeable polymkeric substance, the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance communicates with the first air line 56, the porous carrier layer of the polyethylene terephthalate of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance contacts and the vent outlet 61 that oozes of Asia ultra-thin with highly air-permeable polymkeric substance Nano filtering composite membrane cartridge air permeability test component communicates with for supporting the thin mesh sheet shape first of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance and hold in the palm net 59, to seal with an O-shape circle in the side of the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance,
2, the first air container 54 shown in Fig. 4 is opened, and the gauge pressure of the pressure-regulator on the first air container 54 barometric pressure difference of the external world (namely with) is set to��5kPa, first gas-pressure meter 60 is finally controlled to 5.0kPa through regulating by the first air pressure setter 55 on the first air line 56, is measured the air permeability of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance at steady state by gas flow rate gauger 63 as shown in Figure 4;
3, the first air pressure setter 55 on the first air line 56 is set to respectively 10.0,15.0,20.0,25.0 and 30.0kPa according to the first gas-pressure meter 60, is measured the air permeability of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance under the steady state under each gauge pressure arranged by the gas flow rate gauger 63 shown in Fig. 4;
4, the first air container 54 is closed, then it is set to be less than 1kPa according to the first gas-pressure meter 60 by the first air pressure setter 55 on air line 56, then all air ventings in testing apparatus are gone out, finally ultra-thin for highly air-permeable polymkeric substance sub-Nano filtering composite membrane cartridge air permeability test box 57 is dismantled and carefully take out the sample A1 of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance, and it can be carried out other determination and analysis.
Repeat process and the step of the concrete testing method of the testing apparatus of the air infiltration performance of the ultra-thin sub-Nano filtering composite membrane filter core of applying detection highly air-permeable polymkeric substance as above, the air permeability of the sample A2 and sample A3 of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance can be obtained. The experimental result of described highly air-permeable polymkeric substance ultra-thin sub-sample A1, the sample A2 of Nano filtering composite membrane filter core A and the ventilative rate of permeation of the air of sample A3 is listed in table 1, and its detailed data are as follows:
Table 1: the ventilative rate of permeation experimental result of air of the ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance
Test result as listed in table 1 show that processing method as described above manufactures as described in the ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance superior in quality and very even, the permeability of air is very good.
The tapping machine that applicant's random diameter from the ultra-thin sub-Nano filtering composite membrane filter core B of highly air-permeable polymkeric substance prepared by embodiment two is 190 millimeters stamps out 3 samples, and is marked as sample B1, sample B2 and sample B3 respectively with label. Repeat process and the step of the concrete testing method of the testing apparatus of the air infiltration performance of the ultra-thin sub-Nano filtering composite membrane filter core of applying detection highly air-permeable polymkeric substance as above, described highly air-permeable polymkeric substance ultra-thin sub-sample B1, the sample B2 of Nano filtering composite membrane filter core B and the air permeability of sample B3 sample can be obtained. The experimental result of described highly air-permeable polymkeric substance ultra-thin sub-sample B1, the sample B2 of Nano filtering composite membrane filter core B and the ventilative rate of permeation of the air of sample B3 is listed in table 2, and detailed data are as follows:
Table 2: the ventilative rate of permeation experimental result of air of the ultra-thin sub-Nano filtering composite membrane filter core B of highly air-permeable polymkeric substance
As the test result in table 2 show that processing method as described above manufactures as described in the ultra-thin sub-Nano filtering composite membrane filter core B of highly air-permeable polymkeric substance superior in quality and very even, air permeability is very good.
The ultra-thin sub-Nano filtering composite membrane filter core C of the highly air-permeable polymkeric substance of the asymmetric aperture distribution that applicant prepares from embodiment three, random diameter is that the tapping machine of 190 millimeters stamps out 3 samples, and is marked as sample C1, sample C2 and sample C3 respectively with label. Repeat process and the step of the concrete testing method of the testing apparatus of the air infiltration performance of the ultra-thin sub-Nano filtering composite membrane filter core of applying detection highly air-permeable polymkeric substance as above, described highly air-permeable polymkeric substance ultra-thin sub-sample C1, the sample C2 of Nano filtering composite membrane filter core C and the air permeability of sample C3 sample can be obtained.The experimental result of described highly air-permeable polymkeric substance ultra-thin sub-sample C1, the sample C2 of Nano filtering composite membrane filter core B and the ventilative rate of permeation of the air of sample C3 is listed in table 3, and detailed data are as follows:
The ventilative rate of permeation experimental result of air of the ultra-thin sub-Nano filtering composite membrane filter core C of table 3 highly air-permeable polymkeric substance
Test result as listed in table 3 show that processing method as described above manufactures as described in the quality of the ultra-thin sub-Nano filtering composite membrane filter core C of highly air-permeable polymkeric substance of asymmetric aperture distribution very excellent, the permeability of air is fabulous.
Can being found out by above-mentioned detection experiment, the ventilation property of the ultra-thin sub-Nano filtering composite membrane filter core of the polymkeric substance used in mouth mask of the present invention is very good, and quality is also very excellent.
The testing apparatus of the virus obstruction performance applications of the ultra-thin sub-Nano filtering composite membrane filter core of the described highly air-permeable polymkeric substance that described method is also manufactured by the applicant virus obstruction performance for detecting the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance as shown in Figure 5 is directly tested. The major parts of the testing apparatus of described virus obstruction performance comprises the 2nd air container 65, air velocity controller 67, the buffered soln 68 containing test virus, aerosol generator 70, the test box 72 of virus obstruction performance, the infiltration airway 53 of permeation composite membrane, collection virus liquid 52, the container 51 of collection virus liquid, gas flow rate gauger 50, two stage biological safety cabinet 48. As shown in Figure 5, the air purity in the 2nd air container 65 will be greater than 99.99%, and its air consists of the oxygen of 21.06% (mole) and the nitrogen of 78.94% (mole). Pressure shown on 2nd gas-pressure meter 75 is gauge pressure (i.e. P Pa, wherein P is gaseous tension, PaFor barometric point) or it is called the barometric pressure difference with the external world. The diameter hindering the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance in the test box 72 of performance for the ultra-thin sub-Nano filtering composite membrane filter core virus of described highly air-permeable polymkeric substance is 60 millimeters, the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance hinders the Validity Test diameter of performance test to be 48 millimeters, and its external diameter 6 millimeters will be used for the sealing of the ultra-thin sub-Nano filtering composite membrane filter core periphery of highly air-permeable polymkeric substance. Therefore, the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance hinders the Validity Test area of performance test to be 1808 square millimeters (or about 18 square centimeters). As mentioned above, it is necessary, test virus is phageBuffered soln is Du Erbeike phosphate buffered salt solution (i.e. Dulbecco ' sphosphate-bufferedsaline), phageConcentration in Du Erbeike phosphate buffered salt solution is greater than 107Plaque forming unit's (also known as plaque forming unit, i.e. PlaqueFormingUnit/ml). Collection virus liquid 52 is Du Erbeike phosphate buffered salt solution. This composite membrane virus hinders the test of performance to carry out in two stage biological safety cabinet 48.
In such scheme, in the ultra-thin sub-Nano filtering composite membrane filter core A of the described highly air-permeable polymkeric substance manufactured from embodiment described above, random diameter is that the tapping machine of 60 millimeters stamps out 3 samples, and is marked as sample A4, sample A5 and sample A6 respectively with label. Just the process of concrete testing method and step are described below below:
1, by described 2nd test sample 47, the i.e. sample A4 of the ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance, by in the test box 72 being arranged on the ultra-thin sub-Nano filtering composite membrane filter core virus obstruction performance of highly air-permeable polymkeric substance shown in Fig. 5, the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance communicates with the air lead 71 containing test virus, the porous carrier layer of the polyethylene terephthalate of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance contacts and the infiltration airway 53 oozing vent outlet 79 and permeation composite membrane with the test component of composite membrane virus obstruction performance communicates with for supporting the thin mesh sheet shape the 2nd of composite membrane and hold in the palm net 78, to seal with an O in the side of the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance,
2, the 2nd air container 65 shown in Fig. 5 is opened, and the gauge pressure of the pressure-regulator on the 2nd air container 65 barometric pressure difference of the external world (namely with) is set to��400kPa, then the air velocity of the air velocity controller 67 on the 2nd air line 66 is set under standard state every minute 6 liters, then ultra-thin for highly air-permeable polymkeric substance sub-Nano filtering composite membrane filter core virus is hindered performance test component the offgas outlet conduit 74 containing test virus on air pressure setter 76 be adjusted to gauge pressure 100kPa according to gas-pressure meter 75;
3, after system arrives steady state, will containing being greater than 107Plaque forming unit phageThe Du Erbeike phosphate buffered salt solution of concentration injects the 2nd air line 66 with the flow of every minute 10 micro-liters through aerosol generator 70, and by containing test virus phageAir lead hinder through the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance performance test box containing test virus phageAir intlet enter the test box 72 that the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance hinders performance, test virus phageHinder the surface contact of the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer of the described highly air-permeable polymkeric substance ultra-thin Asia Nano filtering composite membrane filter core A in the test box 72 of performance with highly air-permeable polymkeric substance ultra-thin Asia Nano filtering composite membrane filter core virus and there is the potential energy of the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer penetrating the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance because of set 100kPa pressure reduction, and by the air of the polyetherimide highly air-permeable ultra-thin rete of Subnano-class porous polymer through the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance through being enriched in collection virus liquid 52 through the infiltration airway 53 of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance, the air passed through is discharged by passing through the outlet 49 of the infiltration gas of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance after gas flow rate gauger 50, expellant gas is by first by discharging air after the high-temperature pipe sterilization of 800 DEG C. all the other are containing test virus phageAir hinder the offgas outlet conduit 74 containing test virus of test component of performance through the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance and hindered by the ultra-thin sub-Nano filtering composite membrane filter core virus of highly air-permeable polymkeric substance by air pressure setter 76 offgas outlet 77 containing test virus of the test component of performance discharging, expellant gas is by first by discharging air after the high-temperature pipe sterilization of 800 DEG C. The virus obstruction performance of the ultra-thin sub-Nano filtering composite membrane filter core of the described highly air-permeable polymkeric substance manufactured to fully detect in embodiment described above, the test duration is 24 hours;
4, after completing test, first stop containing being greater than 107Plaque forming unit phageThe Du Erbeike phosphate buffered salt solution of concentration injects the 2nd air line 66 through aerosol generator 70, meanwhile, close the 2nd air container 65, then air pressure setter 76 is adjusted to gauge pressure according to the 2nd gas-pressure meter 75 and it is less than 1kPa, then being discharged out through the offgas outlet 77 containing test virus by all air in testing apparatus, the gas discharged out is by first by discharging air after the high-temperature pipe sterilization of 800 DEG C. Transfer to bioanalysis sensing chamber after finally being closed by the container 51 of collection virus liquid and carry out virus phageConcentration analysis.When biological safety protection, dismounting composite membrane virus hinders the test box 72 of performance, and carefully takes out the sample of the ultra-thin sub-Nano filtering composite membrane filter core of described highly air-permeable polymkeric substance, and it can be carried out other determination and analysis;
5, the collection liquid in the container 51 of collection virus liquid is carried out scanning electron microscope analysis.
Sample A4 for the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance carries out the test that virus as above hinders performance, through the collection liquid in the container 51 of collection virus liquid is carried out scanning electron microscope analysis, all analysis samples all do not detect out virus phageThis analytical results shows that the sample A4 of the ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance is for virus phageObstruction rate be greater than 99.9%.
Repeat process and the step of the concrete testing method of the testing apparatus of the virus obstruction performance of the ultra-thin sub-Nano filtering composite membrane filter core of applying detection highly air-permeable polymkeric substance as above, the virus obstruction performance of the sample A5 and sample A6 of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance can be obtained. The test-results of the virus obstruction performance of the sample A5 and sample A6 of the ultra-thin sub-Nano filtering composite membrane filter core A of described highly air-permeable polymkeric substance, analytical results shows that the sample A4 and sample A5 of the ultra-thin sub-Nano filtering composite membrane filter core A of highly air-permeable polymkeric substance are for virus phageObstruction rate be all greater than 99.9%
In such scheme, in the ultra-thin sub-Nano filtering composite membrane filter core B of the described highly air-permeable polymkeric substance manufactured from embodiment described above, random diameter is that the tapping machine of 60 millimeters stamps out 3 samples, and is marked as sample B4, sample B5 and sample B6 respectively with label.
Repeat process and the step of the concrete testing method of the testing apparatus of the virus obstruction performance of the ultra-thin sub-Nano filtering composite membrane filter core of applying detection highly air-permeable polymkeric substance as above, sample B4, the sample B5 of the ultra-thin sub-Nano filtering composite membrane filter core B of described highly air-permeable polymkeric substance and the virus obstruction performance of sample B6 can be obtained. The test-results of sample B4, the sample B5 of the ultra-thin sub-Nano filtering composite membrane filter core B of described highly air-permeable polymkeric substance and the virus obstruction performance of sample B6, analytical results shows that sample B4, the sample B5 of the ultra-thin sub-Nano filtering composite membrane filter core B of described highly air-permeable polymkeric substance and sample B6 are for virus phageObstruction rate be all greater than 99.9%.
Repeat process and the step of the concrete testing method of the testing apparatus of the virus obstruction performance of the ultra-thin sub-Nano filtering composite membrane filter core of highly air-permeable polymkeric substance of applying detection asymmetric aperture as above distribution, sample C4, the sample C5 of the ultra-thin sub-Nano filtering composite membrane filter core C of highly air-permeable polymkeric substance and the virus obstruction performance of sample C6 of the distribution of described asymmetric aperture can be obtained. The test-results of sample C4, the sample C5 of the ultra-thin sub-Nano filtering composite membrane filter core C of the highly air-permeable polymkeric substance of described asymmetric aperture distribution and the virus obstruction performance of sample C6, analytical results shows that sample C4, the sample C5 of the ultra-thin sub-Nano filtering composite membrane filter core C of highly air-permeable polymkeric substance that asymmetric aperture distribute and sample C6 are for viral phageObstruction rate be all greater than 99.9%.
Claims (8)
1. a sub-nanofiltration membrane mouth mask for the anti-PM2.5 of highly air-permeable, haze, anti-virus, anti-bacteria, comprises mouth mask body and respirator belt, and mouth mask body is planeform or outwardly convex; Semi-ring is connected into, or what straight line respirator belt one termination was connected with mouth mask body, or straight line respirator belt is set on mouth mask body two side between respirator belt and mouth mask body; Respirator belt is force-loose or non-force-loose; It is characterized in that: described mouth mask body (1) is made up of the ultra-thin sub-Nano filtering composite membrane filter core (4) of non-woven fabrics gauze mask material extexine (2), non-woven fabrics gauze mask material internal skin (3) and middle polymkeric substance;The ultra-thin sub-Nano filtering composite membrane filter core (4) of described polymkeric substance is mutually closely formed by stacking by the ultra-thin rete of Subnano-class porous polymer (5) and porous carrier layer (6), the described ultra-thin rete of Subnano-class porous polymer (5) is adjacent with the extexine (2) of described mouth mask body (1), and described porous carrier layer (6) is adjacent with the internal skin (3) of described mouth mask body (1), wherein, the ultra-thin rete that the Subnano-class porous polymer material of the ultra-thin rete that the Subnano-class porous polymer material that the ultra-thin rete of described Subnano-class porous polymer (5) distributes for uniform pore size is made or asymmetric aperture distribution is made, when the ultra-thin rete that the ultra-thin rete of Subnano-class porous polymer (5) is made for Subnano-class porous polymer material that uniform pore size distributes, the aperture of the ultra-thin rete of this Subnano-class porous polymer (5) is 20-60 nanometer, thickness is 0.1-1 micron, when the ultra-thin rete of Subnano-class porous polymer (5) is the ultra-thin rete that the Subnano-class porous polymer material distributed by asymmetric aperture is made, the ultra-thin rete of this Subnano-class porous polymer (5) expands 0.1-1 micron from the surface of the contact external top layer of mouth mask (2) to the surperficial mean pore size of contact porous carrier layer (6) to from 20-60 nanometer, its thickness is: 0.08-0.16mm.
2. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterised in that: the pore diameter range of described porous carrier layer (6) is 0.1-1 micron, and thickness is 0.05-0.2 millimeter.
3. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterised in that: the bottom and upper segment of described mouth mask body (1) is respectively equipped with top encapsulation weldering line ball (8) and encapsulation weldering line ball (9) below; The dual-side of described mouth mask body (1) is respectively equipped with side encapsulation weldering line ball (10); The dual-side edge of described mouth mask body (1) is respectively equipped with elastic ear and hangs (7).
4. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterised in that: the middle position of described mouth mask body (1) is the rhythmo structure (12) of venetian blind type.
5. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 4, haze, anti-virus, anti-bacteria, it is characterised in that: it is packaged with nose clip (11) between two encapsulation weldering line balls of said mouth mask body (1) upper center.
6. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterized in that: the extexine (2) of described mouth mask body is spun-bonded non-woven fabrics, internal skin (3) are spun-bonded non-woven fabrics or melt spraying non-woven fabrics.
7. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterised in that: the ultra-thin rete of described Subnano-class porous polymer (5) is that a kind of raw material in following material is made:
Tetrafluoroethylene, Polytetrafluoroethylene, is abbreviated as PTFE;
Polyethersulfone, Polyethersulfone, is abbreviated as PES;
Poly(vinylidene fluoride), PolyvinylideneFluoride, is abbreviated as PVDF;
Polyetherimide, Polyetherimide, is abbreviated as PEI;
Acrylic copolymer, AcrylicCopolymer;
Polymeric amide, Polyamide, is abbreviated as PA;
Polyimide, Polyimides, is abbreviated as PI;
Poly-polyarylate, Polyarylates,
Polycarbonate, Polycarbonates, is abbreviated as PC;
Polyaryl ether or aryl ethers, Polyarylethers or arylethers;
Poly-aryl ketones or aryl ketones, Polyarylketones or arylketones;
Polyurethane(s);
Polyethylene terephthalate;
Cellulose ethanoate;
Poly-4-methylpentene;
Polymethyl siloxane/polycarbonate;
Silicon-containing polymer or polydimethylsiloxane wherein;
Silicon rubber or polyether block amide wherein, Polyetherblockamide, is abbreviated as PEBA.
8. the sub-nanofiltration membrane mouth mask of the anti-PM2.5 of highly air-permeable according to claim 1, haze, anti-virus, anti-bacteria, it is characterised in that: described porous carrier layer (6) is that one or more the raw material in following material is made:
Tetrafluoroethylene, Polytetrafluoroethylene, is abbreviated as PTFE;
Polyethersulfone, Polyethersulfone, is abbreviated as PES;
Poly(vinylidene fluoride), PolyvinylideneFluoride, is abbreviated as PVDF;
Polyethers, Polyetherimide, is abbreviated as PEI;
Polyester, such as: polyethylene terephthalate, PolyethyleneTerephthalate, is abbreviated as PET;
Acrylic copolymer, AcrylicCopolymer;
Polyimide, Polyimides, is abbreviated as PI;
Poly-polyarylate, Polyarylates,
Polycarbonate, Polycarbonates, is abbreviated as PC;
Polyaryl ether or aryl ethers, Polyarylethers or arylethers;
Poly-aryl ketones or aryl ketones, Polyarylketones or arylketones;
Polypropylene, Polypropylene, is abbreviated as PP;
The porousness non-woven fabrics of good permeability; Described porousness nonwoven cloth material comprises, but is not limited to, porousness polyester (Polyester) non-woven fabrics or porousness polysulfones (Polysulfone) non-woven fabrics or porousness nylon (Nylon) non-woven fabrics.
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