CN103768868A - Antibacterial cortex phellodendri-nanosilver superfine glass fiber air filtering material - Google Patents
Antibacterial cortex phellodendri-nanosilver superfine glass fiber air filtering material Download PDFInfo
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Abstract
The invention relates to an antibacterial cortex phellodendri-nanosilver superfine glass fiber air filtering material. A cortex phellodendri extract, nanosilver particles, xanthan gum and glass fibers are mixed and melt-blown, and the melt-blow woven superfine glass fiber filtering material obtained by melt-blowing and weaving has the antibacterial properties on staphylococcus aureus, Escherichia coli and other bacteria and viruses besides the air filtering performance. The material can solve problems that in a conventional antibacterial material, nanosilver and other antibacterial materials are sprayed to wrap the fiber surfaces of the air filtering material, or nanosilver and other antibacterial materials are woven to form a new air filtering mesh which covers the surface of the air filtering material to form a composite filtering layer, so that the filtering path of the air filtering material is reduced, the filtering efficiency is lowered, microorganism pollution collected on the filtering surface easily generates drug resistance and a high-efficiency air filter easily generates second environment pollution. The antibacterial cortex phellodendri-nanosilver superfine glass fiber air filtering material is applicable to an air filter in a public environment such as a hospital.
Description
Technical field
The present invention relates to a kind of filter sterilization equipment, be specifically related to a kind of golden cypress-Nano Silver ultra-fine fibre glass air filting material with bacteriostasis property.
Background technology
It in modern medical service, is the risk that reduces to greatest extent postoperative infection, except using various decontaminant, build specially the desinfection chamber for performing the operation, be called as the sterilized space of laminar flow operation room, adopt air purity technique to take to filter to microbial contamination, reach and control air purity in space environment, be suitable for the environment of all kinds of requirements of operation, in operating room, form positive and negative pressure environment, make air stream flow to from the high operative region of cleanliness factor the region that cleanliness factor is low, one is tiny, the air-flow of thin layer, carry to same direction with even velocity of flow, realize the mode of operation room air way flow, take away and discharge dust granules and bacterium in air-flow.Laminar flow operation room is divided into two kinds of vertical laminar flow and level course streamings, the general good vertical laminar flow of effect that adopts at present more, be vertical laminar flow high efficiency particulate air filter be located at operation sick bed directly over, air-flow vertically blows to sick bed, return air inlet is located at four jiaos of metope, guarantee that operating table cleanliness factor is up to standard, reduce the infection rate of operation, the cleaning apparatus of core used is called as high efficiency particle air filter (being HEPA), generally include the blower fan that produces air-flow, malleation chamber and be located at malleation chamber below and have the screen pack of bactericidal effect, conventionally on the screen pack for filtering, be formed with the material for sterilization, by airborne particle, bacterium, virus etc. is filtered after sterilization material filters and intercepts, and kill and on filter, adsorb microorganism, the material of current filter sterilization, because generally adopting the antibacterial material sprayings such as Nano Silver be wrapped in to air filting material fiber surface, or adopt and the antibacterial materials such as Nano Silver are made into separately to new airstrainer cover with special air filting material and be compounded to form double-layer filtering net, these structure is all to cause the filtration path of air filting material to reduce, windage easily increases, cause filter efficiency to decline, for double-layer filtering net, because the microbial contamination adhering on non-sterilizing and air filtering material not only easily produces drug resistance, and easy amount reproduction, cause filtering material itself to be contaminated by bacterial, cause high efficiency particle air filter to produce secondary pollution to environment, simple substance silver has the effect of broad-spectrum sterilization, it is a kind of long-lasting and antiseptic weatherability that has, to Escherichia coli, staphylococcus aureus has significant bactericidal action, and nano-Ag particles (particle of diameter between 1-100nm) is owing to having small-size effect, skin effect, quantum size effect and macroscopic quantum, tunnel-effect etc., therefore can only use minute quantity Nano Silver, can produce powerful bactericidal action, and safe, effect is lasting, therefore can find the suitable method of dispersible carrier to Nano Silver, become the key issue that nanometer silver antimicrobial medicine can use popularization safe ready.
Summary of the invention
Technical purpose of the present invention is for a kind of filter sterilization filter material is provided, and particularly has golden cypress-Nano Silver ultra-fine fibre glass air filting material of good sterilization and ventilation effect.
For the larger easily obstruction of windage of the filtration of the filtering material that uses in existing high efficiency particle air filter, be filtered the microbial contamination adhering on material and easily produce drug resistance, and easily amount reproduction causes the problem of secondary environmental pollution, biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material of the present invention, by cortex phellodendri extract, xanthans, silver-colored simple substance nano particle and glass fibre, after mixing according to the weight ratio of 0.5:0.0005:0.0001:1, use melt-blowing equipment and technique to carry out melt-blown knitting, make and form ultra-fine glass fiber filter material
The preparation process of described cortex phellodendri extract is as follows: get 15 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 300ml water thickening filtration obtain concentrated after filtrate 150ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes trickle powdery granule after super-dry;
The preparation process of described silver-colored simple substance nano particle is as follows: get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains nano silver particles powder;
Described xanthans is take cornstarch as primary raw material, fermented under given conditions by microorganism xanthomonas, that makes through refining, be dried, grind is class in vain or the macromolecule polysaccharide polymer rubber polymer of pale yellow powder shape again, and this xanthans purity is more than 99%;
Described glass fibre is a kind of R
2o(Li
2o, Na
2o, K
2o) content is the middle alkali fiber of 11.9%-16.4% sodium-calcium-silicate composition.
In biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material of the present invention, also include non-ionic (polymeric surfactant) polyvinylpyrrolidone (Poly vinyl pyrrolidone, be called for short PVP), this surfactant polyvinylpyrrolidone: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.005:0.5:0.0005:0.0001:1.
In biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material of the present invention, also include anionic surfactant sodium dodecylbenzenesulfonate (linear alkylbenzene sulfonate is called for short LAS), this surfactant sodium dodecylbenzenesulfonate: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.004:0.5:0.0005:0.0001:1.
Beneficial effect: biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material of the present invention, by phellodendron extract, nano-Ag particles, four kinds of materials of xanthans and glass fibre mix and are melt-blown, make to weave the ultra-fine fibre glass filtering material of formation except possessing air filtration performance through melt-blown, also have staphylococcus aureus, Escherichia coli, the thin rice seedlings such as Candida albicans, the bacteriostasis property of virus, this bright a kind of biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material compared with the prior art, solve existing antibacterial air filting material, because generally adopting the antibacterial material sprayings such as Nano Silver be wrapped in to air filting material fiber surface, or the antibacterial materials such as Nano Silver are made into new airstrainer string and form composite filter on pure filterability air filting material surface, cause air filting material to reduce because of filtration path, windage increases the filter efficiency causing and declines, and the microbial contamination that pure filter course gathers can not be killed in time and produce drug resistance, after amount reproduction, easily make high efficiency particle air filter produce the problem that environment is caused to secondary pollution.The present invention possesses the bacteriostasis property of lasting stability, Chinese Medicine Cortex Phellodendri medicine materical crude slice is the dry bark of Rutaceae wampee, tcm clinical practice is used for treating jaundice, the diseases such as diarrhoea, there is broad-spectrum antibacterial action, especially to staphylococcus aureus, streptococcus pneumonia, hemolytic streptococcus, shigella dysenteriae, the common bacterial infection of the hospital airs such as Pseudomonas aeruginosa has remarkable fungistatic effect, and safe, effect is lasting, without bacterial drug resistance, phellodendron extract and nano-Ag particles share, there is remarkable antibacterial synergistic effect, be specially adapted to the filtering material of the PE air cleaners such as hospital, and can significantly reduce production cost.
Relevant detailed content of the present invention and technology, hereby just coordinate accompanying drawing to be described as follows.
Accompanying drawing explanation
Fig. 1, be the structural representation of this aseptic operating room;
Fig. 2, be the schematic diagram of this melt-blown technological process of production.
The specific embodiment
Please refer to shown in Fig. 1 and Fig. 2, for a kind of specific embodiment of a kind of biocidal property golden cypress-Nano Silver of the present invention ultra-fine fibre glass air filting material, this biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material, by cortex phellodendri extract, xanthans, silver-colored simple substance nano particle and glass fibre, after mixing according to the weight ratio of 0.5:0.0005:0.0001:1, use melt-blowing equipment and technique to carry out melt-blown knitting, make and form ultra-fine glass fiber filter material
The preparation process of described cortex phellodendri extract is as follows: get 15 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 300ml water thickening filtration obtain concentrated after filtrate 150ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes trickle powdery granule after super-dry;
The preparation process of described silver-colored simple substance nano particle is as follows: get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains nano silver particles powder;
Described xanthans is take cornstarch as primary raw material, fermented under given conditions by microorganism xanthomonas, that makes through refining, be dried, grind is class in vain or the macromolecule polysaccharide polymer rubber polymer of pale yellow powder shape again, and this xanthans purity is more than 99%;
Described glass fibre is a kind of R
2o(Li
2o, Na
2o, K
2o) content is the middle alkali fiber of 11.9%-16.4% sodium-calcium-silicate composition.
Further, also include non-ionic (polymeric surfactant) polyvinylpyrrolidone (Poly vinyl pyrrolidone, be called for short PVP), this surfactant polyvinylpyrrolidone: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.005:0.5:0.0005:0.0001:1.
Further, also include anionic surfactant sodium dodecylbenzenesulfonate (linear alkylbenzene sulfonate is called for short LAS), this surfactant sodium dodecylbenzenesulfonate: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.004:0.5:0.0005:0.0001:1.
Embodiment 1:
1, prepare cortex phellodendri extract: get 600 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 12000ml water thickening filtration obtain concentrated after filtrate 6000ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes 300 grams of trickle powder particles after super-dry.
2, water-soluble silver nano particle preparation:
2, get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains 0.06 gram, nano silver particles powder.
Please refer to shown in Fig. 1, is the schematic diagram of middle used melt-blowing equipment of the present invention, R
2o(Li
2o, Na
2o, K
2o) 600 grams of content is 15% sodium-calcium-silicate composition mixed materials are after melting, from the porch of porous bushing 1 enters, spill from bushing hole, hot high pressure air-flow blows out from the hot gas discharge orifice 2 of both sides, bushing hole, in decline process after cool air hose 3 is cooling, blow off to the right on conveyer belt 8 along belt direction through cooling tube 5 again, in the melt blown process of this glass fabric, by 300 grams of golden cypress powder particles, 0.3 gram, 0.06 gram of elemental silver nanoparticles and the even mixed powder of purity 99.5% xanthans, be input in high pressure draught pipe by high-pressure delivery pipeline, therefore golden cypress powder particle and elemental silver nanoparticles can adhere to molten glass fiber surface and mutually solidify, thereby can guarantee to have the effect of best sterilization, and can not come off, also can not reduce the sectional area of glass fiber filter filtration path, can guarantee to have the effect of good antibacterial and sterilization, through installation as shown in Figure 2 900 square metres of aseptic rooms 10 of this glass fiber filter material 20, carry out showing after ventilation bactericidal effect test in 5 hours, to staphylococcus aureus killing rate more than 99.5%, to colibacillary killing rate more than 95.7%.
Embodiment 2:
1, prepare cortex phellodendri extract: get 600 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 12000ml water thickening filtration obtain concentrated after filtrate 6000ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes 300 grams of trickle powder particles after super-dry.
2, water-soluble silver nano particle preparation:
2, get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 73.4ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains 0.18 gram, nano silver particles powder.
Please refer to shown in Fig. 1, is the schematic diagram of middle used melt-blowing equipment of the present invention, R
2o(Li
2o, Na
2o, K
2o) 600 grams of content is 15% sodium-calcium-silicate composition mixed materials are after melting, from the porch of porous bushing enters, spill from bushing hole, hot high pressure air-flow blows out from the hot gas discharge orifice of both sides, bushing hole, in decline process after cool air hose is cooling, blow off to the right on conveyer belt along belt direction through cooling tube again, in the melt blown process of this glass fabric, by 300 grams of golden cypress powder particles, 0.3 gram, 0.18 gram of elemental silver nanoparticles and the even mixed powder of purity 99.5% xanthans, be input in high pressure draught pipe by high-pressure delivery pipeline, therefore golden cypress powder particle and elemental silver nanoparticles can adhere to molten glass fiber surface and mutually solidify, thereby can guarantee to have the effect of best sterilization, and can not come off, also can not reduce the sectional area of glass fiber filter filtration path, can guarantee to have the effect of good antibacterial and sterilization, through installation as shown in Figure 2 900 square metres of aseptic rooms of this glass fiber filter material, carry out showing after ventilation bactericidal effect test in 5 hours, to staphylococcus aureus killing rate more than 99.8%, to colibacillary killing rate more than 97.3%.
Embodiment 3:
1, prepare cortex phellodendri extract: get 900 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 18000ml water thickening filtration obtain concentrated after filtrate 9000ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes 450 grams of trickle powder particles after super-dry.
2, water-soluble silver nano particle preparation:
2, get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains 0.06 gram, nano silver particles powder.
Please refer to shown in Fig. 1, is the schematic diagram of middle used melt-blowing equipment of the present invention, R
2o(Li
2o, Na
2o, K
2o) 600 grams of content is 15% sodium-calcium-silicate composition mixed materials are after melting, from the porch of porous bushing enters, spill from bushing hole, hot high pressure air-flow blows out from the hot gas discharge orifice of both sides, bushing hole, in decline process after cool air hose is cooling, blow off to the right on conveyer belt along belt direction through cooling tube again, in the melt blown process of this glass fabric, by 450 grams of golden cypress powder particles, 0.3 gram, 0.06 gram of elemental silver nanoparticles and the even mixed powder of purity 99.5% xanthans, be input in high pressure draught pipe by high-pressure delivery pipeline, therefore golden cypress powder particle and elemental silver nanoparticles can adhere to molten glass fiber surface and mutually solidify, thereby can guarantee to have the effect of best sterilization, and can not come off, also can not reduce the sectional area of glass fiber filter filtration path, can guarantee to have the effect of good antibacterial and sterilization, through installation as shown in Figure 2 900 square metres of aseptic rooms of this glass fiber filter material, carry out showing after ventilation bactericidal effect test in 5 hours, to staphylococcus aureus killing rate more than 99.9%, to colibacillary killing rate more than 98.2%.
Through the above embodiments, contrast is found, suitably increases separately 0.5 times of phellodendron extract, or suitably increases separately 2 times, simple substance silver nanoparticle powder, all can increase the efficiency of sterilization, but the amplitude increasing is not obvious.
Embodiment 4:
1, prepare cortex phellodendri extract: get 600 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 12000ml water thickening filtration obtain concentrated after filtrate 6000ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes 300 grams of trickle powder particles after super-dry.
2, water-soluble silver nano particle preparation:
2, get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains 0.06 gram, nano silver particles powder.
Please refer to shown in Fig. 1, is the schematic diagram of middle used melt-blowing equipment of the present invention, R
2o(Li
2o, Na
2o, K
2o) 600 grams of content is 15% sodium-calcium-silicate composition mixed materials are after melting, from the porch of porous bushing enters, spill from bushing hole, hot high pressure air-flow blows out from the hot gas discharge orifice of both sides, bushing hole, in decline process after cool air hose is cooling, blow off to the right on conveyer belt along belt direction through cooling tube again, in the melt blown process of this glass fabric, by 3 grams of polyvinylpyrrolidones, 300 grams of golden cypress powder particles, 0.3 gram, 0.06 gram of elemental silver nanoparticles and the even mixed powder of purity 99.5% xanthans, be input in high pressure draught pipe by high-pressure delivery pipeline, therefore golden cypress powder particle and elemental silver nanoparticles can adhere to molten glass fiber surface and mutually solidify, thereby can guarantee to have the effect of best sterilization, and can not come off, also can not reduce the sectional area of glass fiber filter filtration path, can guarantee to have the effect of good antibacterial and sterilization, through installation as shown in Figure 2 900 square metres of aseptic rooms of this glass fiber filter material, carry out showing after ventilation bactericidal effect test in 5 hours, to staphylococcus aureus killing rate more than 99.7%, to colibacillary killing rate more than 96.9%.
In this embodiment, polyvinylpyrrolidone, as surfactant, can be assisted the effect that improves sterilization.
1, prepare cortex phellodendri extract: get 600 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 12000ml water thickening filtration obtain concentrated after filtrate 6000ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes 300 grams of trickle powder particles after super-dry.
2, water-soluble silver nano particle preparation:
2, get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains 0.06 gram, nano silver particles powder.
Please refer to shown in Fig. 1, is the schematic diagram of middle used melt-blowing equipment of the present invention, R
2o(Li
2o, Na
2o, K
2o) 600 grams of content is 15% sodium-calcium-silicate composition mixed materials are after melting, from the porch of porous bushing enters, spill from bushing hole, hot high pressure air-flow blows out from the hot gas discharge orifice of both sides, bushing hole, in decline process after cool air hose is cooling, blow off to the right on conveyer belt along belt direction through cooling tube again, in the melt blown process of this glass fabric, by 2.4 grams of polyvinylpyrrolidones, 300 grams of golden cypress powder particles, 0.3 gram, 0.06 gram of elemental silver nanoparticles and the even mixed powder of purity 99.5% xanthans, be input in high pressure draught pipe by high-pressure delivery pipeline, therefore golden cypress powder particle and elemental silver nanoparticles can adhere to molten glass fiber surface and mutually solidify, thereby can guarantee to have the effect of best sterilization, and can not come off, also can not reduce the sectional area of glass fiber filter filtration path, can guarantee to have the effect of good antibacterial and sterilization, through installation as shown in Figure 2 900 square metres of aseptic rooms of this glass fiber filter material, carry out showing after ventilation bactericidal effect test in 5 hours, to staphylococcus aureus killing rate more than 99.6%, to colibacillary killing rate more than 96.3%.
In this embodiment, sodium dodecylbenzenesulfonate, as surfactant, can be assisted raising bactericidal effect.
Claims (3)
1. biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material, it is characterized in that cortex phellodendri extract, xanthans, silver-colored simple substance nano particle and glass fibre, after mixing according to the weight ratio of 0.5:0.0005:0.0001:1, use melt-blowing equipment and technique to carry out melt-blown weaving and form ultra-fine fibre glass filtering material
The preparation process of described cortex phellodendri extract is as follows: get 15 grams of Chinese Medicine Cortex Phellodendri medicine materical crude slice, add boil after 300ml water thickening filtration obtain concentrated after filtrate 150ml, under 80 ° of C conditions, air-dry leaving standstill obtains solid-state golden cypress precipitation, makes trickle powder particle after super-dry;
The preparation process of described silver-colored simple substance nano particle is as follows: get 22.8 g tetradecanoic acids and be dissolved in 140 mL in the first alcohol and water of 2:5 ratio mixing; in solution, add the NaOH of 4g to separate out precipitation; filter, it is to obtain tetradecanoic acid silver in the water miscible liquor argenti nitratis ophthalmicus of 10 mol/L that precipitation is joined to 100 mL concentration; Taking 27.8ml concentration is that 20 mmoL/L tetradecanoic acid silver are in 100 mL beakers, be the triethylamine of 40 mmoL/L to adding 58 mL concentration in beaker, electromagnetic agitation 2h at 80 ℃, the tetradecanoic acid silver powder of white becomes brown, insoluble disappearance gradually, adds 20 mL acetone precipitations to separate out, suction filtration, with after acetone washing precipitation for several times, vacuum drying, obtains nano silver particles powder;
Described xanthans is take cornstarch as primary raw material, fermented under given conditions by microorganism xanthomonas, that makes through refining, be dried, grind is class in vain or the macromolecule polysaccharide polymer rubber polymer of pale yellow powder shape again, and this xanthans purity is more than 99%;
Described glass fibre is a kind of R
2o(Li
2o, Na
2o, K
2o) content is the middle alkali fiber of 11.9%-16.4% sodium-calcium-silicate composition.
2. biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material according to claim 1, it is characterized in that: also include non-ionic (polymeric surfactant) polyvinylpyrrolidone (Poly vinyl pyrrolidone, be called for short PVP), this surfactant polyvinylpyrrolidone: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.005:0.5:0.0005:0.0001:1.
3. biocidal property golden cypress-Nano Silver ultra-fine fibre glass air filting material according to claim 1, it is characterized in that: also include anionic surfactant sodium dodecylbenzenesulfonate (linear alkylbenzene sulfonate is called for short LAS), this surfactant sodium dodecylbenzenesulfonate: cortex phellodendri extract: xanthans: silver-colored simple substance nano particle: the mass ratio of glass fibre is 0.004:0.5:0.0005:0.0001:1.
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| CN106422523A (en) * | 2016-09-07 | 2017-02-22 | 芜湖德鑫汽车部件有限公司 | Antibacterial PC/PE vehicle air conditioner filter element and preparation method thereof |
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| CN106291969A (en) * | 2016-10-13 | 2017-01-04 | 东莞市懋泰眼镜有限公司 | A kind of antibacterial spectacle-frame and preparation method thereof |
| CN112577146A (en) * | 2021-03-01 | 2021-03-30 | 江中药业股份有限公司 | Workshop dust purification system based on real-time data |
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