CN107267814B - A kind of Antibacterial aluminum alloy and preparation method thereof - Google Patents
A kind of Antibacterial aluminum alloy and preparation method thereof Download PDFInfo
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- CN107267814B CN107267814B CN201710431666.6A CN201710431666A CN107267814B CN 107267814 B CN107267814 B CN 107267814B CN 201710431666 A CN201710431666 A CN 201710431666A CN 107267814 B CN107267814 B CN 107267814B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
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Abstract
The present invention discloses a kind of Antibacterial aluminum alloy, one of suitable Cu element and Ag element or two kinds are added in aluminium, and pass through antimicrobial treatment, nanoscale copper-rich phase or Fu Yinxiang disperse educt, it is uniformly distributed in alloy matrix aluminum, assigns the good anti-microbial property of aluminium alloy；The antimicrobial treatment refers to: copper-rich phase or Fu Yinxiang of the aluminium alloy in 450-550 DEG C of heat preservation progress solution treatment in 2-4 hours, alloy are completely dissolved into alloy substrate Al；The highly dispersed in Al matrix of the nanoscale Second Phase Particle rich in Cu or Ag is precipitated in the ageing treatment for keeping the temperature 2-10 hours through 150-200 DEG C.Effect of the invention: after antibacterial processed, Antibacterial aluminum alloy has the copper-rich phase (or Fu Yinxiang) of a large amount of disperse educts to assign aluminium alloy good and lasting anti-microbial property, reaches 90% or more to the antibiotic rate of S. aureus L-forms and Escherichia coli.
Description
Technical field
The invention belongs to antimicrobial treatment technical field, it is related to a kind of antibacterial cobalt-base alloys and preparation method thereof.
Background technique
World Health Organization's investigation display water pollution has become the stealthy killer of human health.The disease in the whole world 80%
It is as caused by drinking contaminated water, the death of 50% children is 1,200,000,000 people of the whole world as caused by drinking contaminated water
A variety of diseases have been suffered from because drinking contaminated water.Wherein Escherichia coli and staphylococcus aureus are all the common of the mankind
Important pathogen.Escherichia coli can cause the disease of the digestive systems such as human body enterogastritis, diarrhea, urinary system infection contamination and cholecystitis
Disease；Staphylococcus aureus can cause pneumonia, pseudomembranous enteritis, pericarditis, septicemia, pyemia and general infection etc..
Aluminium alloy is widely used in daily product preparation, such as door and window, tableware, kitchen tools, outdoor kettle, handheld tool
Deng.There is no antibacterial and sterilizing abilities for conventional aluminium alloy, can not prevent the adherency of bacterium, sprawl and grow.In use environment
Under, it is particularly easy to breed bacterium on surface, infects disease.
In field of medical materials, a large amount of research it has been confirmed that: Ag and Cu have broad-spectrum antiseptic, persistence it is good, without drug resistance
It the advantages that property, is generally satisfactory.Antibacterial Ag+With Cu2+It is contacted with microorganisms such as golden staphylococci and Escherichia coli, damage is thin
After birth destroys the normal tissue of bacterium and the balance of procreation, prevents bacterial growth breeding and eliminating bacteria.
Furthermore Cu is the essential trace elements of the human body, participates in the metabolism of body carbohydrate and lipid, participates in a variety of enzymes
Synthesis；Ag also has micro distribution in human body.
Chinese Patent Application No. 201310038297.6 discloses a kind of Antibacterial aluminum alloy for food container, with weight percent
Than meter, the chemical component of the aluminium alloy is as follows: 0.3-1.5%Mn, 0.5-1.5%Mg, 0.1-3.0%Ag, 0.1-1.0%Zn,
0.1-1.0%RE, 0.1-0.2%Ti, < 0.3%Si, < 0.6%Fe, < 0.3%Cu, other impurities element≤0.20%, surplus
For Al.The patent uses the effect for Ag, Zn, RE element being added in Al-Mn-Mg alloy guarantee antibacterial in the appropriate range
Fruit, but the defect of the patent is: using more alloy kind, not only increasing manufacturing cost, moreover, material cost compared with
It is high.
Summary of the invention
The present invention proposes a kind of Antibacterial aluminum alloy and preparation method thereof to overcome the deficiencies in the prior art,
By adding one of suitable Cu and Ag element or two kinds in fine aluminium, and by subsequent antibacterial treatment process, make
Cu element, Ag element even dispersion in the base, to obtain good anti-microbial property.The alloy is to S. aureus L-forms and Escherichia coli
Antibiotic rate reach 90% or more.The alloy can be widely applied in aluminum products, have long acting antibiotic effect.
Specific technical solution is as follows:
A kind of Antibacterial aluminum alloy, the alloy include Al and antimicrobial component, are distributed to nanoscale antimicrobial component even dispersion
In the alloy；Wherein antimicrobial component is the mixture of Cu, Ag or Cu and Ag；When antimicrobial component is only Cu, the weight hundred of Cu
Score is 1%~10%, surplus Al；When antimicrobial component is only Ag, the weight percent of Ag is 1%~10%, and surplus is
Al；When antimicrobial component is the mixture of Cu and Ag, the weight percent that the weight percent of Cu is 1%~10%, Ag is 1%
~10%, surplus Al.
Above-mentioned alloy further includes other compositions, other compositions are silicon, magnesium, iron or titanium, wherein the total ingredient of single component Zhan
Mass percent is no more than 0.9%, and it is 1% that the mass percent of the total ingredient of total content Zhan of other compositions, which does not surpass,.
When antimicrobial component is only Cu, the weight percent of Cu is 2.0%~5.0%, surplus Al.
When antimicrobial component is only Ag, the weight percent of Ag is 2.0%~5.0%, surplus Al.
When antimicrobial component is the mixture of Cu and Ag, the weight percent of Cu is the weight hundred of 2.0%~5.0%, Ag
Score is 2.0%~5.0%, surplus Al.
The constituent of the aluminium alloy is kept the temperature 2 at 450~550 DEG C by a kind of preparation method of above-mentioned Antibacterial aluminum alloy
Progress solution treatment in~4 hours, copper-rich phase or Fu Yinxiang in alloy are completely dissolved into alloy substrate Al；It is protected through 150~200 DEG C
The highly dispersed in Al matrix of the nanoscale Second Phase Particle rich in Cu or Ag is precipitated in 2~10 hours ageing treatments of temperature, empty
It is cooled to room temperature, 90% or more antibacterial effect can be obtained.
Beneficial effects of the present invention are Antibacterial aluminum alloy proposed by the present invention, have good deformation performance, can be convenient
Ground prepares Al-alloy products of different shapes by existing moulding process.After antibacterial processed, Antibacterial aluminum alloy has largely more
Dissipating the copper-rich phase (or Fu Yinxiang) being precipitated assigns aluminium alloy good and lasting anti-microbial property, to S. aureus L-forms and Escherichia coli
Antibiotic rate reaches 90% or more.
Detailed description of the invention
Fig. 1 is that the antimicrobial flat-plate of pure titanium control sample counts photo；
Fig. 2 is that the antimicrobial flat-plate of aging state Al-5Cu alloy counts photo；
Fig. 3 is that the antimicrobial flat-plate of aging state Al-5Ag alloy counts photo.
Specific embodiment
Embodiment 1
Then aluminium alloy containing different Cu contents, the melting in resistance furnace are cast into base, can also be by being hot-forged, rolling
Bar or plate is made, alloying component is (weight percent): Al, surplus；Cu:1-10, and use antibacterial treatment process pairing
Gold is handled, and is specifically shown in Table 1.Then the anti-microbial property of alloy is detected.
Embodiment 2
Then aluminium alloy containing different Ag contents, the melting in resistance furnace are cast into base, can also be by being hot-forged, rolling
Bar or plate is made, alloying component is (weight percent): Al, surplus；Ag:1-10, and use antibacterial treatment process pairing
Gold is handled, and is specifically shown in Table 1.Then the anti-microbial property of alloy is detected.
Embodiment 3
Then aluminium alloy containing different Cu and Ag contents, the melting in resistance furnace are cast into base, can also be through overheating
It forges, be rolled into bar or plate, alloying component is (weight percent): Al, surplus；Ag:1-10, Cu:1-10, and use antibacterial
Treatment process handles alloy, is specifically shown in Table 1.Then the anti-microbial property of alloy is detected.
Aluminium alloy is calculated according to the following equation to killing after common bacteria (Escherichia coli, staphylococcus aureus etc.) effect
Bacterium rate:
Sterilizing rate (%)=[(control sample viable count-Antibacterial aluminum alloy viable count)/control sample viable count] × 100%
In formula, control sample viable count is that the viable count after Bacteria Culture, Antibacterial aluminum alloy are carried out on the pure titanium of control sample
Viable count refers to the viable count carried out after Bacteria Culture in Antibacterial aluminum alloy.
Bacteriostatic test is according to " JIS Z 2801-2000 " antibacterial fabricated product-antibiotic property test method and antibacterial effect "
Etc. standards regulation, specifically: take test to be added drop-wise to control sample (pure titanium) with bacterium solution 0.3mL, on Antibacterial aluminum alloy sample respectively.
Cover film is overlayed on respectively on each sample with sterilizing tweezers, so that bacterium solution is uniformly contacted sample, is placed in sterilizing plates, be placed on perseverance
37 DEG C in warm incubator, to being cultivated for 24 hours under 90% conditions above of humidity.The sample cultivated for 24 hours is taken out, 15mL is separately added into and washes
De- liquid, cleaning sample and cover film, after sufficiently shaking up, take 0.1mL to be added drop-wise to plate nutrient agar, each sample respectively repeatedly
Product do three Duplicate Samples, and are smoothened with sterilizing triangle rake, are placed in 37 DEG C of insulating boxs after cultivating 48h according to GB/T's 4789.2
Method carries out count plate.
Antibacterial Mechanism of the invention: antimicrobial treatment (solid solution and aging treatment) work of the alloy is determined according to aluminium alloy phasor
The copper-rich phase or Fu Yin of skill parameter, first aluminum alloy plate materials in 450-540 DEG C of heat preservation progress solution treatment in 2-4 hours, alloy
It is mutually completely dissolved into alloy substrate Al；Through 150-200 DEG C keep the temperature 2-10 hour ageing treatment then can make be rich in Cu or Ag from
The nanoscale Second Phase Particle of son highly dispersed in Al matrix is precipitated, and assigns the aluminium alloy containing Cu or Ag excellent antibiotic property
Energy.Antimicrobial flat-plate if Fig. 1,2 and 3 are respectively pure titanium (control sample), aging state Al-5Cu and aging state Al-5Ag alloy counts
Photo, it is seen that the aluminium alloy containing Cu or Ag has good antibacterial property.
1 Antibacterial aluminum alloy of table and its antibiotic rate
Show shown in table 1: after antibacterial process is handled, the antibiotic rate of the different aluminium alloy of antiseptic elements Cu and Ag content is equal
Greater than 90%, even as high as 99%, there is excellent anti-microbial property.The mechanical performance and preparation cost for comprehensively considering alloy, compared with
Good ratio is Cu constituent content weight percent are as follows: 2.0-5.0%, Ag constituent content weight percent are as follows: 2.0-5.0%.
Claims (5)
1. a kind of Antibacterial aluminum alloy, which is characterized in that the alloy includes Al and antimicrobial component, and nanoscale antimicrobial component is uniformly more
It is distributed scatteredly in the alloy；Wherein antimicrobial component is the mixture of Cu, Ag or Cu and Ag；When antimicrobial component is only Cu, Cu
Weight percent be 1% ~ 10%, surplus Al；When antimicrobial component is only Ag, the weight percent of Ag is 1% ~ 10%, surplus
For Al；When antimicrobial component is the mixture of Cu and Ag, the weight percent that the weight percent of Cu is 1% ~ 10%, Ag is 1% ~
10%, surplus Al；The Antibacterial aluminum alloy is prepared by the following method to obtain: by the constituent of the aluminium alloy 450 ~ 550oC
Progress solution treatment in 2 ~ 4 hours is kept the temperature, the copper-rich phase or Fu Yinxiang in alloy are completely dissolved into alloy substrate Al；Through 150 ~
200oThe ageing treatment that C keeps the temperature 2 ~ 10 hours analyses the highly dispersed in Al matrix of the nanoscale Second Phase Particle rich in Cu or Ag
Out, it is air-cooled to room temperature.
2. a kind of Antibacterial aluminum alloy, which is characterized in that the alloy includes Al and antimicrobial component, and nanoscale antimicrobial component is uniformly more
It is distributed scatteredly in the alloy；Wherein antimicrobial component is the mixture of Cu, Ag or Cu and Ag；When antimicrobial component is only Cu, Cu
Weight percent be 1% ~ 10%, surplus Al；When antimicrobial component is only Ag, the weight percent of Ag is 1% ~ 10%, surplus
For Al；When antimicrobial component is the mixture of Cu and Ag, the weight percent that the weight percent of Cu is 1% ~ 10%, Ag is 1% ~
10%, surplus Al；The alloy further includes other compositions, and other compositions are silicon, magnesium, iron or titanium, wherein the total ingredient of single component Zhan
Mass percent be no more than 0.9%, it is 1% that the mass percent of the total ingredient of total content Zhan of other compositions, which does not surpass,；The antiseptic aluminum
Alloy is prepared by the following method to obtain: by the constituent of the aluminium alloy 450 ~ 550oC keeps the temperature 2 ~ 4 hours and carries out at solid solution
It manages, the copper-rich phase or Fu Yinxiang in alloy are completely dissolved into alloy substrate Al；Through 150 ~ 200oC is kept the temperature at 2 ~ 10 hours timeliness
The highly dispersed in Al matrix of the nanoscale Second Phase Particle rich in Cu or Ag is precipitated in reason, is air-cooled to room temperature.
3. a kind of Antibacterial aluminum alloy according to claim 1 or 2, which is characterized in that when antimicrobial component is only Cu, Cu's
Weight percent is 2.0% ~ 5.0%, surplus Al.
4. a kind of Antibacterial aluminum alloy according to claim 1 or 2, which is characterized in that when antimicrobial component is only Ag, Ag's
Weight percent is 2.0% ~ 5.0%, surplus Al.
5. a kind of Antibacterial aluminum alloy according to claim 1 or 2, which is characterized in that when antimicrobial component is the mixed of Cu and Ag
When closing object, the weight percent that the weight percent of Cu is 2.0% ~ 5.0%, Ag is 2.0% ~ 5.0%, surplus Al.
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| CN201710431666.6A CN107267814B (en) | 2017-06-09 | 2017-06-09 | A kind of Antibacterial aluminum alloy and preparation method thereof |
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| CN201710431666.6A CN107267814B (en) | 2017-06-09 | 2017-06-09 | A kind of Antibacterial aluminum alloy and preparation method thereof |
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| CN107267814B true CN107267814B (en) | 2019-06-28 |
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| KR102452654B1 (en) * | 2020-08-06 | 2022-10-11 | 최대범 | Alloy material with antibacterial activity |
| CN116176087B (en) * | 2023-04-27 | 2023-09-29 | 宁波时代铝箔科技股份有限公司 | Packaging film material with high antibacterial and high barrier properties, preparation method and application |
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| "抗菌Al-Mg-Si合金组织与性能研究";高青;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20160115;第5-7、10-11页 |
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