CN103614719A - Preparation method of anti-microbial stainless steel - Google Patents
Preparation method of anti-microbial stainless steel Download PDFInfo
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- CN103614719A CN103614719A CN201310500779.9A CN201310500779A CN103614719A CN 103614719 A CN103614719 A CN 103614719A CN 201310500779 A CN201310500779 A CN 201310500779A CN 103614719 A CN103614719 A CN 103614719A
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Abstract
The invention relates to a technical field of novel materials and provides a preparation method of anti-microbial stainless steel. The method comprises a step of subjecting a stainless steel part surface to alkali washing, chemical oxidation and acid washing in sequence to obtain pretreated stainless steel; a step of spraying or dip-coating the pretreated stainless steel surface with a silver gel having a silver content of 1-10 g/L and a silver particle size of 5-80 nm with an amount of 10-100 mL/m<2>; and a step of sintering at 150-250 DEG C for 5-15 min after the pretreated stainless steel surface is dried at room temperature, and cleaning to obtain the anti-bacterial stainless steel. The preparation method of the anti-bacterial stainless steel is simple. The anti-bacterial stainless steel maintains metal appearance of stainless steel and has good anti-bacterial performances, and can be widely applied for various stainless steel products.
Description
Technical field
The invention belongs to new material technology field, be specifically related to a kind of preparation method of anti-bacteria stainless steel.
Background technology
Stainless Steel Products has been widely used in the aspects such as food, tableware, medicine equipment at present, this also makes the just face microorganism such as breed bacteria, fungi and form the microbial film of one deck permanence very easily of stainless steel, and this layer of microbial film produces greatly and threaten people's health.So along with the raising of people's living standard, people are safe to having, lasting, efficient, the stainless demand of antimicrobial form of wide spectrum is more and more.
Antimicrobial form stainless steel in the market mainly comprises and adds copper anti-bacteria stainless steel, top coat anti-bacteria stainless steel, adds silver-colored anti-bacteria stainless steel etc., add copper stainless steel plate thermal treatment process complicated, copper adds and too much also can cause stainless steel tiny crack to increase, not corrosion-resistant in some medium, finally make to add copper type stainless steel high cost, therefore need the add-on of strict limit copper, it is not strong that this also makes to add copper type stainless steel antibacterial ability.Top coat type anti-bacteria stainless steel mainly contains at stainless steel surface and covers layer of titanium dioxide film, due to titanium dioxide, only the wavelength in daylight to be less than to the ultraviolet radiation absorption of 400nm strong, so in the environment for use of or unglazed photograph weak in illumination, this antimicrobial form stainless steel antibacterial effect is not good.So it is best to consider to add silver-colored type anti-bacteria stainless steel from security and germ resistance, but the difference of silver or silver-colored compound combined process its antibacterial effect different from stainless steel and cost is also very big.
Summary of the invention
Technical problem to be solved by this invention is to overcome the defect of prior art, and a kind of preparation method of anti-bacteria stainless steel is provided.
The present invention is achieved in that a kind of preparation method of anti-bacteria stainless steel, and it comprises the steps:
Stainless steel work-piece surface is carried out to alkali cleaning, chemical oxidation and pickling successively, obtain pre-treatment stainless steel;
By silver content, be 1～10g/L, the silver colloid spraying that silver-colored grain diameter scope is 5～80nm or dip-coating are in pre-treatment stainless steel surface, and wherein, the painting amount of described pre-treatment stainless steel surface silver colloid is 10mL/m
2～100mL/m
2, after Air drying, in 150 ℃～250 ℃ sintering 5～15min, clean, obtain described anti-bacteria stainless steel.
Preparation method's cost of anti-bacteria stainless steel provided by the invention is low, process stabilizing, simple, and prepared anti-bacteria stainless steel has excellent broad spectrum durable anti-microbial property.
Accompanying drawing explanation
Fig. 1 is stainless outward appearance photo after embodiment mono-pre-treatment;
Fig. 2 is the outward appearance photo of the anti-bacteria stainless steel of embodiment mono-preparation;
Fig. 3 is stainless scanning electron microscope picture after embodiment mono-pre-treatment;
Fig. 4 is the scanning electron microscope picture of the anti-bacteria stainless steel of embodiment mono-preparation;
Fig. 5 is the magnification at high multiple scanning electron microscope picture of the anti-bacteria stainless steel of embodiment mono-preparation.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of preparation method of anti-bacteria stainless steel, and it comprises the steps:
S01: stainless steel work-piece surface is carried out to alkali cleaning, chemical oxidation and pickling successively, obtain pre-treatment stainless steel;
S02: be 1～10g/L by silver content, the silver colloid spraying that silver-colored grain diameter scope is 5～80nm or dip-coating are in pre-treatment stainless steel surface, and wherein, the painting amount of described pre-treatment stainless steel surface silver colloid is 10mL/m
2～100mL/m
2, after Air drying, in 150 ℃～250 ℃ sintering 5～15min, clean, obtain described anti-bacteria stainless steel.
In step S01, the component of alkali cleaning oil removing alkaline wash used is sodium hydroxide 50g/L～70g/L, sodium carbonate 15g/L～35g/L, and water glass 5g/L～8g/L, sodium phosphate 25g/L～35g/L, the treatment time is 1min～10min, treatment temp is 70 ℃～85 ℃.The component of chemical oxidation liquid that chemical oxidation is used is: potassium bichromate 200g/L～300g/L, and vitriol oil 450g/L～550g/L, treatment time 4min～8min, treatment temp is 90 ℃～100 ℃.Pickling pickle solution component used is: vitriol oil 90g/L～110g/L, and nitric acid 50g/L～70g/L, hydrochloric acid 30g/L～45g/L, OP-101g/L～2.5g/L, the treatment time is 30s～120s, treatment temp is 20 ℃～30 ℃.Preferably, to stainless steel alkali cleaning oil removing, temperature is 75 ℃, time 5min; The temperature of chemical oxidation, 95, time 5min; Pickling, 25 ℃ of temperature, time 60s.Stainless steel surface its surface oxidation film thickness after chemical oxidation is: 100nm～500nm, under the condition of the thick and fine and close oxide film that surface forms through chemical oxidation in pickling, part is damaged by corrosion, and form the many empty structures in surface, contribute to adsorb nano-Ag particles.
In step S02, after preferably silver colloid being mixed in the ratio of 1:2～2:1 with ethanol (95%) for quickening rate of drying, even spraying or dip-coating are at pre-treatment stainless steel surface, and silver colloid quantity for spray is preferably 40～60mL/m
2, after being dried under room temperature, at 200 ℃ of sintering 10min, stainless steel surface evenly adsorbs the nano-Ag particles that one deck even dispersion distributes, and obtains described anti-bacteria stainless steel.Nano particle has germicidal action because its surfactivity is high, silver-colored tool own also has extremely strong antibacterial ability.
The preparation method of the anti-bacteria stainless steel that the embodiment of the present invention provides, its basic ideas are to utilize the porous surface structure forming after the special processing of stainless steel surface, utilize the high surfactivity of nanometer silver, it adhered to and be adsorbed in stainless surface and hole, thereby playing anti-microbial effect.Owing to taking full advantage of the high surfactivity of nanometer silver and being uniformly distributed, make the manufacturing cost of anti-bacteria stainless steel lower than other types anti-bacteria stainless steel, and this technical scheme has kept stainless steel metal gloss, aesthetic property solidity to corrosion etc.Nano-Ag particles is uniformly distributed in the hole and defect of stainless steel base, is combined firmly with matrix; Further, this anti-bacteria stainless steel outward appearance light, solidity to corrosion is good, and anti-microbial property test is carried out respectively antibacterial test according to JC/T897-2002 to intestinal bacteria and streptococcus aureus and is all reached more than 99%.
By specific embodiment, illustrate below the preparation method of above-mentioned anti-bacteria stainless steel.
Embodiment mono-:
To stainless steel alkali cleaning oil removing, alkaline wash is sodium hydroxide 60g/L, sodium carbonate 25g/L, water glass 6.5g/L, the mixing solutions of sodium phosphate 30g/L, alkali cleaning temperature is 75 ℃, time 5min, chemical oxidation film forming, chemical oxidation liquid consist of potassium bichromate 200g/L and vitriol oil 500g/L, the temperature of chemical oxidation is 95 ℃, time 5min; Pickling, pickle solution consist of vitriol oil 100g/L, nitric acid 60g/L, hydrochloric acid 40g/L, OP-102g/L, the temperature of pickling is 25 ℃, time 60s.
By silver content 5g/L, the silver colloid that silver-colored grain diameter is 30nm is evenly sprayed on stainless steel surface after mixing in the ratio of 1:1 with ethanol (95%), and quantity for spray is 50mL/m
2, after being dried under room temperature, at 200 ℃ of sintering 10min, with the hydrochloric acid of hydrochloric acid 1mol/L, 99% ethanol, distilled water, clean stainless steel respectively successively.
Embodiment bis-:
To stainless steel alkali cleaning oil removing, alkaline wash is sodium hydroxide 50g/L, sodium carbonate 15g/L, water glass 8g/L, the mixing solutions of sodium phosphate 35g/L, alkali cleaning temperature is 80 ℃, time 8min, chemical oxidation film forming, chemical oxidation liquid consist of potassium bichromate 300g/L and vitriol oil 550g/L, the temperature of chemical oxidation is 100 ℃, time 4min; Pickling, pickle solution consist of vitriol oil 110g/L, nitric acid 50g/L, hydrochloric acid 45g/L, OP-101g/L, the temperature of pickling is 20 ℃, time 30s.
By silver content 5g/L, the silver colloid that silver-colored grain diameter is 30nm is evenly sprayed on stainless steel surface after mixing in the ratio of 1:1 with ethanol (95%), and quantity for spray is 50mL/m
2, after being dried under room temperature, at 200 ℃ of sintering 10min, with the hydrochloric acid of hydrochloric acid 1mol/L, 99% ethanol, distilled water, clean stainless steel respectively successively.
Embodiment tri-:
To stainless steel alkali cleaning oil removing, alkaline wash is sodium hydroxide 70g/L, sodium carbonate 35g/L, water glass 5g/L, the mixing solutions of sodium phosphate 25g/L, alkali cleaning temperature is 70 ℃, time 1min, chemical oxidation film forming, chemical oxidation liquid consist of potassium bichromate 200g/L and vitriol oil 450g/L, the temperature of chemical oxidation is 100 ℃, time 8min; Pickling, pickle solution consist of vitriol oil 90g/L, nitric acid 70g/L, hydrochloric acid 30g/L, OP-102.5g/L, the temperature of pickling is 30 ℃, time 120s.
By silver content 5g/L, the silver colloid that silver-colored grain diameter is 50nm is evenly sprayed on stainless steel surface after mixing in the ratio of 1:1 with ethanol (95%), and quantity for spray is 50mL/m
2, after being dried under room temperature, at 200 ℃ of sintering 10min, with the hydrochloric acid of hydrochloric acid 1mol/L, 99% ethanol, distilled water, clean stainless steel respectively successively.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a preparation method for anti-bacteria stainless steel, is characterized in that, comprises the steps:
Stainless steel work-piece surface is carried out to alkali cleaning, chemical oxidation and pickling successively, obtain pre-treatment stainless steel;
By silver content, be 1～10g/L, the silver colloid spraying that silver-colored grain diameter scope is 5～80nm or dip-coating are in pre-treatment stainless steel surface, and wherein, the painting amount of described pre-treatment stainless steel surface silver colloid is 10mL/m
2～100mL/m
2, after Air drying, in 150 ℃～250 ℃ sintering 5～15min, clean, obtain described anti-bacteria stainless steel.
2. the preparation method of anti-bacteria stainless steel as claimed in claim 1, it is characterized in that, described alkali cleaning by the component of alkaline wash is: sodium hydroxide 50g/L～70g/L, sodium carbonate 15g/L～35g/L, water glass 5g/L～8g/L and sodium phosphate 25g/L～35g/L, the treatment time of described alkali cleaning is 1min～10min, and treatment temp is 70 ℃～85 ℃.
3. the preparation method of anti-bacteria stainless steel as claimed in claim 1, it is characterized in that, described chemical oxidation by the component of chemical oxidation liquid is: potassium bichromate 200g/L～300g/L, vitriol oil 450g/L～550g/L, the treatment time of described chemical oxidation is 4min～8min, and treatment temp is 90 ℃～100 ℃.
4. the preparation method of anti-bacteria stainless steel as claimed in claim 1, it is characterized in that, the component of the pickle solution that described pickling is used is: vitriol oil 90g/L～110g/L, nitric acid 50g/L～70g/L, hydrochloric acid 30g/L～45g/L, OP-101g/L～2.5g/L, the treatment time of described pickling is 30s～120s, treatment temp is 20 ℃～30 ℃.
5. the preparation method of anti-bacteria stainless steel as claimed in claim 1, is characterized in that, the thickness of described chemical oxidation rear surface oxide film is 100nm～500nm.
6. the preparation method of anti-bacteria stainless steel as claimed in claim 1, is characterized in that, the amount of described pre-treatment stainless steel surface silver colloid is 40mL/m
2～60mL/m
2.
7. the preparation method of anti-bacteria stainless steel as claimed in claim 1, is characterized in that, the temperature of described sintering is 180 ℃～220 ℃.
8. the preparation method of anti-bacteria stainless steel as claimed in claim 1, is characterized in that, described silver colloid after mixing in the ratio of 1:2～2:1 with ethanol again spraying or dip-coating in pre-treatment stainless steel surface.
9. the preparation method of anti-bacteria stainless steel as claimed in claim 1, is characterized in that, described cleaning selects the hydrochloric acid of 1mol/L, second alcohol and water to clean.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216212A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The preparation technology of anti-bacteria stainless steel |
| CN106222649A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The preparation method of stainless steel products |
| CN106216213A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The method strengthening stainless antibiotic property |
| CN106222602A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | Stainless production method |
| CN106238294A (en) * | 2016-07-27 | 2016-12-21 | 王虹 | The processing method of anti-bacteria stainless steel |
| CN106552757A (en) * | 2016-11-30 | 2017-04-05 | 佛山市高明区诚睿基科技有限公司 | A kind of preparation method of anti-bacteria stainless steel part |
| CN106757074A (en) * | 2016-12-16 | 2017-05-31 | 安徽宝恒新材料科技有限公司 | A kind of processing method for improving stainless steel antibiotic property |
| CN107299320A (en) * | 2015-11-16 | 2017-10-27 | 王贝 | A kind of anti-bacteria stainless steel |
| CN107740082A (en) * | 2017-10-30 | 2018-02-27 | 扬州江净空调制造有限公司 | Antiseptic solution and the coating treatment technique when solution to be used for medicament compartment stainless steel ware |
| CN108950498A (en) * | 2018-09-04 | 2018-12-07 | 合肥久新不锈钢厨具有限公司 | A kind of preparation method of anti-bacteria stainless steel plate |
| CN111804931A (en) * | 2019-04-11 | 2020-10-23 | 香港大学 | Antibacterial stainless steel prepared by powder metallurgy method assisted by in-situ decomposition |
| CN112438548A (en) * | 2020-11-30 | 2021-03-05 | 希诺股份有限公司 | Manufacturing method of antibacterial stainless steel vacuum cup |
| CN116159724A (en) * | 2022-12-13 | 2023-05-26 | 安徽同曦高科新材料股份有限公司 | Stainless steel material surface antibacterial and antiviral modification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665931A (en) * | 2009-09-29 | 2010-03-10 | 北京科技大学 | Method for preparing long-acting antibacterial stainless steel film |
| CN101709464A (en) * | 2009-11-19 | 2010-05-19 | 广州电器科学研究院 | Method for preparing stainless steel surface nano antibacterial film |
-
2013
- 2013-10-22 CN CN201310500779.9A patent/CN103614719B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665931A (en) * | 2009-09-29 | 2010-03-10 | 北京科技大学 | Method for preparing long-acting antibacterial stainless steel film |
| CN101709464A (en) * | 2009-11-19 | 2010-05-19 | 广州电器科学研究院 | Method for preparing stainless steel surface nano antibacterial film |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299320B (en) * | 2015-11-16 | 2018-12-25 | 佛山市钿汇不锈钢有限公司 | A kind of anti-bacteria stainless steel |
| CN107299320A (en) * | 2015-11-16 | 2017-10-27 | 王贝 | A kind of anti-bacteria stainless steel |
| CN106222649A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The preparation method of stainless steel products |
| CN106216213A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The method strengthening stainless antibiotic property |
| CN106222602A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | Stainless production method |
| CN106238294A (en) * | 2016-07-27 | 2016-12-21 | 王虹 | The processing method of anti-bacteria stainless steel |
| CN106216212A (en) * | 2016-07-27 | 2016-12-14 | 王虹 | The preparation technology of anti-bacteria stainless steel |
| CN106552757A (en) * | 2016-11-30 | 2017-04-05 | 佛山市高明区诚睿基科技有限公司 | A kind of preparation method of anti-bacteria stainless steel part |
| CN106757074A (en) * | 2016-12-16 | 2017-05-31 | 安徽宝恒新材料科技有限公司 | A kind of processing method for improving stainless steel antibiotic property |
| CN107740082A (en) * | 2017-10-30 | 2018-02-27 | 扬州江净空调制造有限公司 | Antiseptic solution and the coating treatment technique when solution to be used for medicament compartment stainless steel ware |
| CN107740082B (en) * | 2017-10-30 | 2019-04-19 | 扬州江净空调制造有限公司 | Antiseptic solution and the coating treatment technique when solution to be used for medicament compartment stainless steel ware |
| CN108950498A (en) * | 2018-09-04 | 2018-12-07 | 合肥久新不锈钢厨具有限公司 | A kind of preparation method of anti-bacteria stainless steel plate |
| CN111804931A (en) * | 2019-04-11 | 2020-10-23 | 香港大学 | Antibacterial stainless steel prepared by powder metallurgy method assisted by in-situ decomposition |
| CN112438548A (en) * | 2020-11-30 | 2021-03-05 | 希诺股份有限公司 | Manufacturing method of antibacterial stainless steel vacuum cup |
| CN116159724A (en) * | 2022-12-13 | 2023-05-26 | 安徽同曦高科新材料股份有限公司 | Stainless steel material surface antibacterial and antiviral modification method |
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