KONADA KND-ZR200 zirconium phosphate, white powder, insoluble in water and organic solvents, capable of withstanding strong acids and certain alkalis. It has a large specific surface area and surface charge, and is a strong solid acid with good ion exchange properties.
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Item
H3O4PZr
Purity
>99.9%
Exterior
White Powder
PH
4.5±0.5
SEM
0.8-1.2um
Pb
≤10ppm
Cd
≤5ppm
Application Suggestion
1. In terms of medical kidney dialysis, it is a new type of adsorbent that acts as a new type of dialysis consumables in the blood dialysis process.
2. In terms of wound care dressings, zirconium phosphate wound composite dressings are a biomedical material used to treat sores, wounds, and other skin damage.
3. In terms of ion exchange: It has ion exchange adsorption function for metal ions such as trivalent chromium, and can be applied in blood dialysis, water purifiers, wastewater treatment, and other fields.
4. In terms of catalysts, it can catalyze propylene, ethylene (processing of petroleum by-products), oxidized paraffin, porphyrin, phthalocyanine, etc. It is not limited to acidic catalysis, but can also be used for alkaline catalysis.
5. Antibacterial aspect: can be used as a silver loaded antibacterial material; Can be added to plastics, rubber, fibers, coatings, paper, adhesives, ceramics, and glass products as antibacterial functional materials; And silver zinc inorganic antibacterial agents, rare earth composite inorganic antibacterial agents, antibacterial fiber masterbatch, fabric antibacterial finishing agents, down antibacterial and deodorizing finishing agents, etc; Even antibacterial agents that can be generated through high-temperature calcination. It has been used in various products such as anti-static shoes, conductive shoes, antibacterial underwear, socks, surgical gowns, dressings, insoles, and cosmetics.
6. In terms of environmental protection, zirconium phosphate has strong adsorption capacity for acidic gases such as SO2 and CO2. It can be added as an adsorbent to materials such as tiles, artificial boards, wallpapers, coatings, etc., to remove harmful gases such as formaldehyde and ammonia produced during decoration; In addition, its strong affinity for alkaline organic compounds such as amines, alcohols, and pyridines can also be utilized to remove such substances, and toxic pollutants such as polychlorinated biphenyls (PCBS), polycyclic aromatic hydrocarbons (PAHS), and insecticides (PCDFS) can even be adsorbed and removed.
7. Electrical aspect: zirconium phosphate α- ZrP is essentially a proton conductor, which can be used as gel electrolyte material for dye-sensitized solar cells.
8. Low expansion ceramic materials: mainly used as high-temperature and high-pressure ceramic heads and ceramic knives.
9. In terms of electrochemical equipment, it can be used as solid-phase gas sensors, polymer inorganic proton conducting membrane materials, all solid phase fuel cells, electroluminescent materials, molecular electronic devices, nonlinear optical materials, artificial photosynthesis devices, and photosensitive composite fillers for films.
10. In the field of biology, it is used as a material for gene storage. A nanocomposite material composed of bioactive molecules such as DNA and proteins.
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The present invention relates to a kind of basic zirconium phosphate carrying silver antimicrobials, especially relate to a kind of preparation method of cube basic zirconium phosphate Ag-carried antibacterial powder.
Chinese patent CN1600536 discloses a kind of nano lamellar basic zirconium phosphate and carries silver-colored inorganic antibacterial powder and novel preparation method thereof.It take nano lamellar basic zirconium phosphate as carrier, and its pH is between 1～2, and the major diameter of disk is less than 600nm, thickness is less than 50nm, and its preparation process is controlled the pattern and size of powder by template and grain growth inhibitor.The exchange of silver ion is to adopt zinc ion transition method, and this method makes the availability of silver ion bring up to 100%, by slightly excessive zinc ion, at high temperature can form the micronucleus structure of oxide coated by zinc silver ion.That the inorganic antibiosis powder that this method makes has is nontoxic, uniform particles, have excellent weather resistance, the feature such as processing stability is excellent, antibacterial effect is lasting.Can be widely used in the fields such as chemical fibre, plastics, water treatment, rear arrangement.
Chinese patent CN102239887A discloses a kind of preparation method of nanoscale zirconium phosphate silver-carrying composite inorganic antimicrobial agent, and it comprises the following steps: a, preparation nanometer basic zirconium phosphate carrier: in zirconium oxychloride aqueous solution, add enough sodium dihydrogen phosphate reactant aqueous solutions to obtain nanoscale basic zirconium phosphate carrier; B, ultrafiltration: nanometer basic zirconium phosphate carrier is inserted in ultrafiltration membrane system, to during without chlorion, completing ultrafiltration with silver ion check in filtrate; C, antibacterial metal ions absorption, displacement: the sol precipitation of nanometer basic zirconium phosphate carrier is added to pure water and dissolve, then add the antibacterial metal ions aqueous solution, fully absorption, displacement reaction; The preparation of d, inorganic antibiosis powder: suction filtration, cleaning reaction product, dries filter cake, and the filter cake after oven dry is pulverized rear calcining a little, obtains product.This preparation method adopts milipore filter to remove the by-product inorganic salts producing in synthesizing zirconium phosphate process, so that basic zirconium phosphate carrier does not need just can be directly used in absorption, displacement metal ion through high-temperature calcination.
Inorganic silver is that antibacterial powder can be divided into silicate (comprising zeolite, tobermorite, silica gel glass, bentonite etc.) from carrier, phosphate-based (comprising basic zirconium phosphate, calcium phosphate etc.), oxide basedly (comprise TiO 2 , ZrO 2 , Al 2 o 3 deng) and other (as activated carbon, carbon fiber, complex compounds etc.).But because silver-colored chemical property is active, the easy variable color of silver-series antibacterial agent under the irradiation of ultraviolet light, thus had a strong impact on its application.Silver-series antibacterial agent is easy to change is a little less than the adhesion due to silver ion and carrier, and silver ion is easy to the result of stripping oxidation.Cube sodium zirconium phosphate surface is porous type structure, and not only specific surface area is large, high adsorption capacity, and chemical stability is good, high temperature resistant, and the antibacterial metal ions that can make load hold produces good slow releasing function.As carrier, can effectively strengthen the adhesion between carrier and silver ion, thereby make antibacterial agent there is the advantages such as ultraviolet resistance shines, high temperature resistant, antimicrbial power is lasting.
Silver-ion antibiotic comes from ancient Chinese, and is accompanied by the progress of human civilization and gradual perfection grows up.Now having become an important component part that improves human lives's quality, is also countries in the world scientist's study hotspot.Silver-based inorganic antibacterial agent be main in inorganic antibacterial material be also a most important veriety.
The present invention adopts zinc ion transition overload silver, first with zinc ion exchange, receives ion, then uses Ag ion exchange zinc ion, by controlling the availability that zinc ion amount improves silver ion of carrying of powder, makes the availability of silver ion almost reach 100%, cost-saving.
It is the hydrofluoric acid that template replaces old technology that the present invention selects sodium oxalate, prepares the basic zirconium phosphate carrier of cube shaped, thereby makes product and production process thereof really accomplish safety non-toxic, and can select enamel equipment on production equipment, saves production cost.
The preparation of cube basic zirconium phosphate carrier of the present invention adopts constant pressure hydro-thermal synthetic method, and its technique is simple, easy to operate, and equipment selectivity is large.
In step 3), the condition of described stirring is to be to stir 3h at 60～70 ℃ in temperature.
In step 2) in, the condition of described stirring can be at 90 ℃ and stirs 2h; The mass ratio of described cube basic zirconium phosphate carrier and zinc nitrate aqueous solution can be 1: (0.3～0.4), the concentration of described zinc nitrate aqueous solution can be 40%～50%.
In step 1), the mol ratio of described zirconium oxychloride, sodium dihydrogen phosphate, sodium oxalate is 1: (1.5～2.1): (0.7～1), the temperature of described heating can be 90 ℃, and the time of heating can be 28h; Wherein zirconium oxychloride and sodium dihydrogen phosphate are reaction raw materials, are the sources of zr element and phosphate radical in product, and sodium oxalate is template, for controlling the pattern of carrier; The mol ratio of described zirconium oxychloride, sodium dihydrogen phosphate, sodium oxalate is preferably 1: 1.9: 0.9; In described cube basic zirconium phosphate carrier, moisture content can be 40%～50% by mass percentage.
3) by carrying zinc intermediate, be mixed with 6%～10% aqueous dispersions, add liquor argenti nitratis ophthalmicus, making the content of silver ion in carrier is 1.5%～3.5%, stirs, and washing, filters, and dry, calcination obtains end product cube basic zirconium phosphate Ag-carried antibacterial powder.
Described cube basic zirconium phosphate Ag-carried antibacterial powder, its powder microstructure is cube shaped, and silver loads on cube, and the cube length of side is 400～1000nm.
The object of the present invention is to provide a kind of preparation method of cube basic zirconium phosphate Ag-carried antibacterial powder.
Fig. 3 is the weather resisteant trial curve of the prepared serial antibacterial agent of basic zirconium phosphate silver of the embodiment of the present invention.In Fig. 3, abscissa be the time (hour), ordinate is aberration (Δ E); Curve a is 1% interpolation, and b is blank.
Fig. 2 is the scanning electron microscope (SEM) photograph of the cube basic zirconium phosphate Ag-carried antibacterial powder that makes of the embodiment of the present invention.In Fig. 2, scale is 100nm.
Fig. 1 is the scanning electron microscope (SEM) photograph of the cube basic zirconium phosphate Ag-carried antibacterial powder that makes of the embodiment of the present invention.In Fig. 1, scale is 0.2 μ m.
Embodiment
The preparation method of cube basic zirconium phosphate carrying silver antimicrobials of the present invention, one is divided into following three steps:
Synthesizing of 1 cube basic zirconium phosphate carrier
The color constant pressure hydro-thermal synthetic method of cube basic zirconium phosphate carrier.The raw materials for production of cube basic zirconium phosphate carrier are zirconium oxychloride, sodium dihydrogen phosphate and sodium oxalate.Sodium oxalate is controlled the structure of carrier as template.
Embodiment 1
180kg zirconium oxychloride is dissolved in 1 ton of water, and 100kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 68kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 83.5%.
Embodiment 2
180kg zirconium oxychloride is dissolved in 1 ton of water, and 114kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 68kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 91.2%.
Embodiment 3
180kg zirconium oxychloride is dissolved in 1 ton of water, and 128kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 68kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 95.5%.
Embodiment 4
180kg zirconium oxychloride is dissolved in 1 ton of water, and 128kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 52kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 90.0%.
Embodiment 5
180kg zirconium oxychloride is dissolved in 1 ton of water, and 128kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 60kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 94.0%.
Embodiment 6
180kg zirconium oxychloride is dissolved in 1 ton of water, and 128kg sodium dihydrogen phosphate is dissolved in 0.5 ton of water, and 76kg sodium oxalate is dissolved in 0.5 ton of water, after fully dissolving, join in same reactor, under normal pressure, temperature is controlled at 90 ℃ simultaneously, reaction time is controlled at after 28h, obtains cube basic zirconium phosphate slurry.Zirconates molar yield 95.0%.
2, cube basic zirconium phosphate carries the preparation of zinc
Gained cube basic zirconium phosphate carrier slurry (moisture content 40 ~ 50%) in step 1 is mixed with zinc nitrate aqueous solution, stir 2h at 90 ℃, generate and carry a zinc intermediate; The proportioning mass ratio of described cube basic zirconium phosphate carrier slurry and zinc nitrate aqueous solution is 1:0.3 ~ 0.4, and the concentration of described zinc nitrate aqueous solution is 40%～50%.
3, cube basic zirconium phosphate carries silver-colored preparation
The cube basic zirconium phosphate making in step 2 is mixed with to 6% ~ 10% aqueous dispersions by deionized water, add the liquor argenti nitratis ophthalmicus that is quantitatively dissolved in 100kg water, controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 7
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6%～10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 4.7kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 1.5% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 8
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6%～10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 5.6kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 1.5% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 9
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6% ~ 10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 6.2kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 2% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 10
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6% ~ 10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 7.1kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 2.3% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 11
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6% ~ 10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 7.8kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 2.5% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 12
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6%～10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 8.7kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 2.8% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 13
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6%～10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 9.6kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 3.1% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Embodiment 14
The 200kg cube basic zirconium phosphate making in step 2 is mixed with to 6%～10% aqueous dispersions by deionized water, add 100kg liquor argenti nitratis ophthalmicus (wherein containing silver nitrate 10.9kg), controlling temperature is 60 ~ 70 ℃, constant temperature stirs 2h, after washing and filtering, and 120 ℃ of oven dry, and control moisture content below 8%, 450 ℃ of calcination 6h again after the fragmentation of solid after oven dry hammer powder, to be cooledly carry out air-flow crushing to room temperature, just make silver ion concentration and be 3.5% the silver-colored antibacterial powder of cube basic zirconium phosphate.
Fig. 1 and 2 provides the scanning electron microscope (SEM) photograph of the cube basic zirconium phosphate Ag-carried antibacterial powder that the embodiment of the present invention makes.
Fig. 3 provides the weather resisteant trial curve of the prepared serial antibacterial agent of basic zirconium phosphate silver of the embodiment of the present invention.
Table 1 provides the impact analysis of basic zirconium phosphate carrier silver carrying amount to the antibacterial effect of antibacterial powder and anti-tarnishing ability.
Table 1
Silver carrying amount (%) Staphylococcus aureus (MIC) Anti-tarnishing ability 1.5 266 By force 1.8 180 By force 2.0 120 By force 2.3 112 By force 2.5 106 By force 2.8 103 Generally 3.1 98 Slightly 3.5 96 A little less thanFrom table 1, along with the increase of silver carrying amount, the antibacterial effect of antibacterial powder can rise thereupon, but surpass after saturation value, antibacterial effect changes little, and anti-tarnishing ability declines to some extent, illustrate that excessive silver ion can accumulate in the surface of cube basic zirconium phosphate carrier, easily variable color.
Below provide key technology of the present invention and industrial analysis:
(1) adopt constant pressure hydro-thermal synthetic method to prepare cube basic zirconium phosphate carrier, technique is simple, easy to operate, and equipment selectivity is large.
(2) new preparation technology controls the structure of basic zirconium phosphate by template, we select the hydrofluoric acid of sodium oxalate replace old technique, removed the harm of poisonous ocratation to human body and environment, thereby make product and production process thereof really accomplish safety non-toxic, greening and environmental protection, and on production equipment, can select enamel equipment, avoid the corrosion of hydrofluoric acid to enamel.
(3) by controlling the correct judgement of solubility, temperature, time and the reaction end of synthetic reaction, control average grain diameter and the D of antimicrobial powder 50(meso-position radius), D 90(particle size range of 90% particle) thus reduce the bulky grain in powder.
(4) by controlling the electrical conductivity≤50 μ s/cm of basic zirconium phosphate carrier washing purifying and the electrical conductivity≤30 μ s/cm of powder washing, thereby effectively control impurity content and the whiteness of antibacterial powder, improve the antibacterial effect of antimicrobial product.
(5) in the selection of antibacterial ion, new technology has been selected the silver ion of strong antibacterial ability and high security, carry silver-colored technology and adopt zinc ion transition method, first with zinc ion exchange, receive ion, with silver ion, exchange zinc ion again, by controlling the availability that zinc ion amount improves silver ion of carrying of powder, make the availability of silver ion reach 100%, and excessive zinc ion can form the micronucleus structure of oxide coated by zinc silver ion after high-temperature calcination.Reduce the probability that silver ion directly contacts with raw materials such as plastics, resin, chemical fibres, thereby improved the anti-tarnishing ability of antibacterial powder.
(6) in new technology of preparing, adopted 700～900 ℃ of antimicrobial powder high-temperature calcinations, time 5～8h, can increase heat endurance, photostability and the processing stability of antibacterial powder after high-temperature shaping.
Below provide the performance test of the antibacterial powder of cube basic zirconium phosphate:
1. particle diameter and structure
The submicron of cube shaped structure, the narrow range of size distribution, uses quite high safety.
By laser particle size analyzer, diameter of carrier being carried out to measurement result is: D 50≤ 1.0um, D 90≤ 2.0um.Antibacterial powder after year silver is carried out to particle diameter test result is: D 50≤ 1.5um, D 90≤ 2.5um.
2. anti-microbial property test
The test of 2.1 minimal inhibitory concentrations (MIC)
According to the minimal inhibitory concentration test in < < disinfection technology standard > >, use distilled water diluting antimicrobial powder, be made into the suspension of variable concentrations, in each suspension of 5ml, inoculating 0.1ml bacterial concentration is 1.0 * 10 8after the bacterium liquid of CFU/ml, at 36 ℃, cultivate 48h, the turbidity of the suspension that detects by an unaided eye, suspension turbidity keeps the least concentration not increasing to be minimal inhibitory concentration.According to Japanese inorganic antiseptic standard, the powder that minimal inhibitory concentration is not more than 800 μ g/ml is that anti-microbial property is qualified.And we develop basic zirconium phosphate antimicrobial powder the minimal inhibitory concentration of Escherichia coli, staphylococcus aureus, Candida albicans are respectively to 120 (mg/kg), 110 (mg/kg), 130 (mg/kg).
2.2 quantitative tests---GB/T21510-2008 powder anti-microbial property test method succusion
Get basic zirconium phosphate and carry aluminium powder 0.5g and put into conical flask, then add 95mL to contain the phosphate buffer of 0.1% Tween-80, after mixing, then add the prefabricated bacteria suspension of 5.0mL (bacterial concentration approximately 1.0 * 10 5cFU/ml), under 37 ℃ of conditions of operative temperature, with 150r/min speed, detect the material vibration contact 1h-4h that sample need to dilute rear use, then bacterium colony is cultivated.The basic zirconium phosphate antimicrobial powder that we develop is all greater than 90% to the antibiotic rate of Escherichia coli, staphylococcus aureus, Candida albicans.
3. safety in utilization
Various safety testing results are as shown in table 2. the high safety in utilization of the serial antibacterial agent of basic zirconium phosphate silver as can be seen from Table 2.
Table 2
4. warm tolerance and drug resistance
The serial antibacterial agent of basic zirconium phosphate silver is the pottery ceramic material of highly crystalline, and physico chemical property are highly stable.Even if the serial antibacterial agent of cube basic zirconium phosphate silver also volatilizees without any volatile matter (comprising water) while being heated to 1000 ℃, and its antibacterial ability is not any change.
5. weather resisteant
Deteriorated and the discoloration test that the various resins that added the serial antibacterial agent of basic zirconium phosphate silver cause due to light and heat as shown in Figure 3.
The stability of the silver ion that causes variable color in the serial antibacterial agent of cube basic zirconium phosphate silver is quite high, so the suffered impact of the basic zirconium phosphate serial antibacterial agent of silver is quite little.
Product surface prepared by the present invention is cube structure, has very stiff stability, strong antibacterial ability, high-fire resistance, durability and safety.Can be widely used in the industries such as plastics, building materials, weaving, medicine, pottery, commodity.
1. textile industry
Antibacterial fabric main technique be rear arrangement and before spin two kinds of modes, antibacterial textile adopts afterfinish method, be characterized in showing antibacterial, short-term good anti-bacterial effect, cost is low.The shortcomings such as but the rear textile washing fastness arranging is poor, and antibacterial effect is not lasting, and feel is bad.In order to address this problem, Jinda Nanotechnology's independent research in 2008 silver-colored antibiotic odourproof fiber (FreeCooL), be to make terylene antibacterial matrices by spinning-grade basic zirconium phosphate Ag-carried antibacterial powder, in spinning, directly add and the anti-bacterial wet-absorbing sweat-repellent fiber made.Due to before belonging to, spin interpolation, made fabric has long-lasting antibacterial effect, and washing fastness is good, safety non-toxic, in addition the design of fiber cross profiled-cross-section, there is stronger moisture pick-up properties and lead sweat performance, being widely used at present back boxing, gym suit, towel, socks, underwear pants, interior decoration etc. in footwear.
Inorganic silver is that terylene antibacterial matrices also can be made into silver-colored antibacterial deodourizing short fiber in addition, is mainly used in antibacterial nonwoven cloth made, antimicrobial socks, antibiotic facing material etc.
2. household electric appliances
Antibacterial electric standard of mandatory enforcement on September 15 in 2011, means that the household electrical appliances healthy functions of having propagandized hotly over more than 10 year on market at home will step into " product standard configuration epoch " from " concept hype epoch ".These standards are to standard and promote the development of antibacterial functions household electrical appliances to play landmark effect.Antibacterial household electrical appliances are become " there are laws to abide by ", antibacterial household electric appliances are played to good standardization role, the while is the rights and interests of Protection of consumer effectively.Antibacterial household electrical appliances be unable to do without antibiotic plastic, according to correlative study address prediction, by 2015, the commercial Application market scale of global antibiotic plastic will reach 1,400,000,000 pounds, value of the product for the consumer goods is 10.3 hundred million pounds, and the whole world will have antibacterial functions up to 20% plastic products.The cube basic zirconium phosphate Ag-carried antibacterial powder of this explained hereafter can add in various types of resins, is processed into the antibacterial matrices of all size, makes various antibacterial products, is widely used.
3. anti-bacteria ceramic
For the nowadays raising of people's living standard, the reinforcement of health of people consciousness, environment-friendly materials have become current theme.Sanitary ceramics, as toilet seat, bathtub, porcelain basin and ceramic tile etc., often contacts with human body, if grow germ above, will communicate illness, and serious harm health.Therefore, antiseptic sanitary possesses sterilizing function, effectively kill colibacillus and other noxious bacteria of harmful to human, thereby protection people's is healthy.Cube Ag-carried antibacterial powder can directly add in the glaze in pottery, and employing twice dispersing technology can make anti-bacteria ceramic have good anti-microbial property and not affect the presentation quality of original glaze.Because the temperature of ceramic kiln is very high, the silver ion in antibacterial powder has part and runs off, and normal antibacterial powder adds ratio and often do not reach national antibacterial standard, through a large amount of experiments, shows:
A, along with the rising of kiln temperature, the antibacterial effect that the addition of antibacterial powder in glaze rises and just can reach thereupon.
B, when kiln temperature is constant, the increase of the addition of antibacterial powder in glaze can make the antibiotic rate of anti-bacteria ceramic rise.
Table 3 provides the impact of 1250 ℃ of antibacterial powder additions on 24h antibiotic rate.
Table 3
Antibacterial powder addition (%) in glaze 2 4 6 8 10 Antibiotic rate (%) 71.62 82.5 91.51 94.86 98.50As can be seen from Table 3:
(1) when the addition of antibacterial powder in glaze reaches 6%, the antibiotic rate on anti-bacteria ceramic surface can reach more than 90%, has good anti-microbial property.
(2) high-temperature calcination meeting makes silver have part to run off for a long time, makes anti-microbial property decline, so in anti-bacteria ceramic is made, add the also corresponding increase of ratio of antimicrobial powder.
4, foaming EVA application
The features such as EVA expanded material has that quality is light, softness good, electrical insulating property is excellent, heat resistance and resistance to corrosive chemicals, are widely used in the goods fields such as toy for children, medical equipment backing plate, motion backing plate.Yet these goods are in use often subject to the pollution of bacterium, mould, to people's live and work environment structure threat.Due to EVA expanded material temperature higher (molding temperature is 165～175 ℃) in process of production, natural antibacterial agent and organic antibacterial agent are all difficult to meet the requirement of processing technology.And cube basic zirconium phosphate carries aluminium powder and has the advantages such as good, the antibacterial lasting timeliness of heat resistance is long, safety is high, can use in EVA foaming.