CN103611366A - Bacteriostatic copper fiber air filtering material and preparation method thereof - Google Patents
Bacteriostatic copper fiber air filtering material and preparation method thereof Download PDFInfo
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- CN103611366A CN103611366A CN201310628219.1A CN201310628219A CN103611366A CN 103611366 A CN103611366 A CN 103611366A CN 201310628219 A CN201310628219 A CN 201310628219A CN 103611366 A CN103611366 A CN 103611366A
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Abstract
The invention discloses a bacteriostatic copper fiber air filtering material and a preparation method thereof. The preparation method comprises the following steps: (1) smelting and casting to obtain a copper silver alloy round ingot, wherein the copper silver alloy round ingot comprises the following components in percentage by weight: 99.99 to 99.97 percent of copper and 0.01 to 0.03 percent of silver; (2) performing cutting processing on fiber, namely directly performing cutting processing by using a machine tool to obtain a staple metal fiber; (3) paving and dispersing in a non-woven manner, namely paving and dispersing the fiber on a base plate uniformly, wherein the unit weight of the fiber is 680 to 980 g/m<2>; (4) sintering at a high temperature; (5) finishing and forming to obtain the bacteriostatic copper fiber air filtering material. The bacteriostatic copper fiber air filtering material has natural bacteriostatic and filtering properties, can be used for avoiding secondary pollution and avoiding additional injury to a human body; a cutting processing method is adopted, so the specific surface area can be increased by 30 to 40 percent and the wind resistance can be reduced by about 10 percent; any structures of the existing air conditioner or air purifier do not need to be changed and can be directly replaced.
Description
Technical field
The present invention relates to a kind of airstrainer, be specifically related to a kind of air filting material with antagonistic property and preparation method thereof.
Background technology
Current family's commercial air purifier, air-conditioning, and in HVAC system air filtration scavenging material used is in use; As spraying fungicide by chemical method; Physical method is as active carbon adsorption; And ultraviolet light, the methods such as plasma.The absorption that these methods easily cause various bacteriums to belong to is on the one hand assembled, from and a large amount of breeding growths cause secondary pollution.On the other hand, use for a long time ultraviolet light, plasma also produces potential injury to human body.
Metallic copper reacts with microorganism Surface Contact, can destroy membrane structure, enters in cell body and corresponding enzyme set, causes the catalytic action of enzyme to disappear, and simultaneously by light-catalyzed reaction, produces free radical, and oxidative damage cell finally causes microbial death.For utilizing the antagonistic property of copper, at field of textiles, by ad hoc approach, prepared cupric fiber.For example, in < < textile journal > > July in 2011 " the antibacterial and bacteriostasis property of copper alginate fiber " literary composition of the 13rd to 16 pages, used copper alginate fiber, copper alginate fiber is to take sodium alginate as raw material, by a series of ion-exchange, a kind of novel alga silicate fiber of making through wet spinning.It is a kind of leachability fiber that this article discloses this fiber, and Gram-negative bacteria and gram-positive bacteria are all had to obvious fungistatic effect.But this fiber thermal resistance and acid-alkali resistance is poor, complicated process of preparation, cost is high, and meanwhile, its dissolution characteristic also causes its antibacterial life-span to be affected, and is not suitable for as filtering material, using in the systems such as air-conditioning.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of antibacterial copper fiber air filting material, to adapt to all kinds of air conditioning occasions, uses, and has nature antagonistic property and strainability simultaneously; Another object of the present invention is to provide the preparation method of this material.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of preparation method of antibacterial copper fiber air filting material, comprises the following steps:
(1) melting and casting: copper is added to electric melting furnace, control copper liquid temperature in stove at 1160～1175 ℃, add silver granuel, 1160 ℃ of insulations 10 minutes, 1145 ℃ are cast to temperature is in the swage of 450～500 ℃; Naturally cooling, obtain Kufil billet; By weight percentage, contain copper 99.99～99.97%, silver 0.01～0.03%;
(2) fiber machining: adopt lathe to carry out direct machining, lathe rotating speed is 160～455RPM, and lateral feed is that 0.00008～0.00018 mm/ workpiece often turns; Acquisition diameter is 22～60um, and length is the broken-staple metal fibre of 2～10 mm;
(3) nonwoven paving is loose: the even shakedown of fiber is dispersed on substrate; Fiber after paving is loose becomes the network structure of nonwoven, and it is 680～980 grams/m that the Unit Weight of fiber is controlled;
(4) high temperature sintering: the fiber that paving has been fallen apart is inserted in high temperature sintering burner hearth together with substrate, sintering under protective atmosphere, sintering temperature is 870～930 ℃, sintering time is 40～50 minutes, protective gas is nitrogen, obtains the antibacterial copper fibrofelt sintering;
(5) finishing moulding: the antibacterial copper fibrofelt sintering is carried out to smooth operation, and moulding obtains antibacterial copper fiber air filting material.
In technique scheme, in step (1), described copper is Cu-CATH-1, and described Kufil billet is of a size of: Φ 145 * 400mm.
In step (2), the broken-staple metal fibre cross section of acquisition is nearly triangle, and the similar scolus shape of periphery of fiber is compared traditional round filament and cut off the broken-staple metal fibre forming, and can increase specific area 30～40%; After sintering, form microvoid simultaneously, be beneficial to filtration.
In step (3), described substrate is the substrate that prevents high temperature bond.Can adopt the material that can prevent high temperature bond to prepare substrate, also anti-stick layer can be set on substrate.
In step (4), can adopt fiber non-woven to spread loose mode, the even shakedown of fiber is dispersed on substrate; Fiber after paving is loose becomes the network structure of nonwoven, and it is 680～980 grams/m that the Unit Weight of fiber is controlled.
In step (5), can be by the antibacterial copper fibrofelt sintering, smooth to satisfactory size by finishing machine, as thickness and the length set; By the good antibacterial copper fibrofelt of finishing, according to specification requirement, be processed into predetermined overall dimensions, as plane tabular, louvered etc.
Preferred technical scheme, in step (2), lateral feed is that 0.00008mm/ workpiece often turns.In step (4), sintering time is 45 minutes.
The present invention discloses the antibacterial copper fiber air filting material that adopts above-mentioned preparation method to prepare.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention adopts and take the Kufil material that copper is main body and prepare air filting material, has the antibacterial effect of nature and strainability, does not produce secondary pollution, does not bring the extra infringement to human body;
2. the broken-staple metal fibre that prepared by the present invention, adopts cutting working method, and the broken-staple metal fibre cross section of acquisition is nearly triangle, and the similar scolus shape of periphery of fiber is compared traditional round filament and cut off the broken-staple metal fibre forming, and can increase specific area 30～40%; After sintering, can form microvoid simultaneously, be beneficial to filtration, compare the broken-staple metal fibre preparation that adopts circle filament to cut off, windage can reduce by 10% left and right;
3. the present invention spreads loose mode by nonwoven and sintering is processed into antibacterial copper fibrofelt by broken-staple metal fibre, can moulding obtain the size and dimension identical with existing air filting material, do not need to change any structure of the devices such as existing air-conditioning or air purifier, directly replace and use;
4. owing to adopting alloy fiber moulding, long service life, can repeat by the method for washing or air-blowing long-term use;
5. manufacturing process of the present invention letter knot, stable, manufacturing cost competitive superiority, easily realizes industrialization.
Accompanying drawing explanation
Fig. 1 is the metallic copper fiber obtaining in embodiment mono-;
Fig. 2 is the micro-structure diagram (amplifying 100 times) of metallic copper fiber in embodiment mono-;
Fig. 3 is the micro-structure diagram (amplifying 100 times) of metallic copper fiber in embodiment mono-;
Fig. 4 and Fig. 5 are the use view of the air filting material of embodiment mono-acquisition.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment mono-:
A preparation method for antibacterial copper fiber air filting material, technological process and main points are as follows:
(1) antibacterial copper raw material ratio, by weight percentage: Cu content 99.99～99.97%, Ag content 0.01～0.03%.
(2) melting and casting: qualified Cu-CATH-1 is added to electric melting furnace, control copper liquid temperature in stove at 1160～1175 ℃, add after silver granuel, 1160 ℃ of insulations 10 minutes, 1145 ℃ are cast to temperature is in the swage of 450～500 ℃; Rear naturally cooling.Billet is of a size of: Φ 145 * 400mm.
(3) fiber machining: adopt lathe, rotating speed is controlled: 160～455RPM, lateral feed is that 0.00008mm/ workpiece often turns; Utilize cutter to be directly processed into: diameter is 22～60um, length is the broken-staple metal fibre of 2～10 mm.The cross section of fiber is nearly triangle, and the similar scolus shape of periphery of fiber increases specific area 30～40% and compares the broken-staple metal fibre that traditional round filament cut-out forms; After sintering, form microvoid, be beneficial to filtration.The broken-staple metal fibre obtaining is referring to shown in accompanying drawing 1-3.
(3) fiber lay down is loose: the mode by nonwoven is dispersed in the even shakedown of fiber on the substrate that prevents high temperature bond; Fiber after paving is loose becomes the network structure of nonwoven, and it is 680～980 grams/m that the Unit Weight of fiber is controlled.
(4) high temperature sintering: the fiber that paving has been fallen apart is inserted in high temperature sintering burner hearth together with substrate, and sintering temperature is 870～930 ℃, and sintering time is: 45 minutes.Protective gas is nitrogen.
(5) finishing: by the antibacterial copper fibrofelt sintering, by finishing machine, smooth to satisfactory size; As thickness and length width.
(6) moulding: by the good antibacterial copper fibrofelt of finishing, according to specification requirement, be processed into predetermined overall dimensions, as plane tabular, louvered etc.Product is used example states referring to shown in accompanying drawing 4 and accompanying drawing 5.
It is as follows that the product of the antibacterial copper fiber air filting material that this enforcement patent is obtained carries out Performance Detection:
1, bacteriostasis property detects:
Detection method is as follows:
(1) personnel, in room after movable 30 minutes, place 4 sterile petri dish, gather airborne bacterium, then in incubator 37 ℃ within 48 hours, cultivate, obtain blank bacterium data, be blank group;
(2) by adopting the air purifier of the filtering material of the present embodiment to put into laboratory, open after 60 minutes and close, place 4 sterile petri dish, gather airborne bacterium, then in incubator 37 ℃ within 48 hours, cultivate, obtain the data after air cleaning, be experimental group.
Test result is as follows:
| ? | Culture dish 1 | Culture dish 2 | Culture dish 3 | Culture dish 4 | Total plate count | Degerming effect |
| Blank group | 18 | 22 | 41 | 12 | 93 | ? |
| Experimental group | 10 | 9 | 18 | 9 | 46 | ? |
| Bacterium colony difference | 8 | 13 | 23 | 5 | 49 | 52.69% |
Visible, the product of the present embodiment has good bacteriostasis property.
2, strainability test:
(1) windage test: (test wind speed is 2 meter per seconds)
(2) filter efficiency:
(3) dust containing capacity:
The copper filament of the dimension argentiferous of producing under tradition drawing process condition, cuts off, and diameter is 0.04mm, and length is 2～10mm.Under with above detection method and condition, the bacteriostasis property testing result of the Kufil fibrous material of traditional handicraft, strainability test result is as follows:
A bacteriostasis property test result:
| ? | Culture dish 1 | Culture dish 2 | Culture dish 3 | Culture dish 4 | Total plate count | Degerming effect |
| Blank group | 23 | 19 | 32 | 16 | 90 | ? |
| Experimental group | 19 | 13 | 19 | 5 | 56 | ? |
| Bacterium colony difference | 4 | 6 | 13 | 11 | 34 | 37.78% |
The test of B strainability:
(1) windage test: (test wind speed is 2 meter per seconds)
(2) filter efficiency:
(3) dust containing capacity:
Comprehensive above test result, can find out through contrast, the technique that the application adopts is compared with the Kufil fiber air filting material of traditional handicraft made, at bacteriostasis property, strainability is as windage, filter efficiency, and the aspects such as dust containing capacity all have obvious advantage.
Claims (6)
1. a preparation method for antibacterial copper fiber air filting material, is characterized in that, comprises the following steps:
(1) melting and casting: electrolysis copper coin is added to electric melting furnace, control copper liquid temperature in stove at 1160～1175 ℃, add silver granuel, 1160 ℃ of insulations 10 minutes, 1145 ℃ are cast to temperature is in the swage of 450～500 ℃; Naturally cooling, obtain Kufil billet; By weight percentage, contain copper 99.99～99.97%, silver 0.01～0.03%;
(2) fiber machining: adopt lathe to carry out direct machining, lathe rotating speed is 160～455RPM, and lateral feed is that 0.00008～0.00018mm/ workpiece often turns; Acquisition diameter is 22～60um, the broken-staple metal fibre that length is 2～10mm;
(3) nonwoven paving is loose: the mode by nonwoven is dispersed in the even shakedown of fiber on substrate; Fiber after paving is loose becomes the network structure of nonwoven, and it is 680～980 grams/m that the Unit Weight of fiber is controlled;
(4) high temperature sintering: the fiber that paving has been fallen apart is inserted in high temperature sintering burner hearth together with substrate, sintering under protective atmosphere, sintering temperature is 870～930 ℃, sintering time is 40～50 minutes, protective gas is nitrogen, obtains the antibacterial copper fibrofelt sintering;
(5) finishing moulding: the antibacterial copper fibrofelt sintering is carried out to smooth operation, and moulding obtains antibacterial copper fiber air filting material.
2. the preparation method of antibacterial copper fiber air filting material according to claim 1, is characterized in that: in step (1), described copper is Cu-CATH-1, and described Kufil billet is of a size of: Φ 145 * 400mm.
3. the preparation method of antibacterial copper fiber air filting material according to claim 1, is characterized in that: in step (3), described substrate is the substrate that prevents high temperature bond.
4. the preparation method of antibacterial copper fiber air filting material according to claim 1, is characterized in that: in step (2), lateral feed is that 0.00008mm/ workpiece often turns.
5. the preparation method of antibacterial copper fiber air filting material according to claim 1, is characterized in that: in step (4), sintering time is 45 minutes.
6. adopt the antibacterial copper fiber air filting material that in claim 1 to 5, arbitrary preparation method prepares.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436860A (en) * | 2014-12-31 | 2015-03-25 | 安徽省元琛环保科技有限公司 | Copper fiber filter screen for load photocatalyst and manufacturing method thereof |
| CN110585471A (en) * | 2019-09-17 | 2019-12-20 | 深圳施乐仕电气有限公司 | Microbial-grade gas filtering device |
| CN112246013A (en) * | 2020-10-13 | 2021-01-22 | 福建强纶新材料股份有限公司 | Preparation method of low-cost metal filter material |
| CN113908324A (en) * | 2021-09-26 | 2022-01-11 | 杭州淑洁卫生用品有限公司 | Disposable hygienic product with antibacterial function |
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| JPS591770A (en) * | 1982-06-28 | 1984-01-07 | 三菱レイヨン株式会社 | Sterilizable cellulose fiber |
| JPH09308506A (en) * | 1996-05-22 | 1997-12-02 | Hitachi Cable Ltd | Bactericidal shoes |
| JPH10192625A (en) * | 1996-12-28 | 1998-07-28 | Wakamatsu Netsuren Kk | Water and air permeable material having sterilizing property and its manufacture |
| CN101190393A (en) * | 2006-11-24 | 2008-06-04 | 中国科学院金属研究所 | Cu-Ag antimicrobial filtering metal material and preparing method and application thereof |
| CN201445869U (en) * | 2008-12-10 | 2010-05-05 | 宁波市镇海凯达汽车部件厂 | Automobile air-conditioning filter screen |
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2013
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Patent Citations (5)
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| JPS591770A (en) * | 1982-06-28 | 1984-01-07 | 三菱レイヨン株式会社 | Sterilizable cellulose fiber |
| JPH09308506A (en) * | 1996-05-22 | 1997-12-02 | Hitachi Cable Ltd | Bactericidal shoes |
| JPH10192625A (en) * | 1996-12-28 | 1998-07-28 | Wakamatsu Netsuren Kk | Water and air permeable material having sterilizing property and its manufacture |
| CN101190393A (en) * | 2006-11-24 | 2008-06-04 | 中国科学院金属研究所 | Cu-Ag antimicrobial filtering metal material and preparing method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104436860A (en) * | 2014-12-31 | 2015-03-25 | 安徽省元琛环保科技有限公司 | Copper fiber filter screen for load photocatalyst and manufacturing method thereof |
| CN110585471A (en) * | 2019-09-17 | 2019-12-20 | 深圳施乐仕电气有限公司 | Microbial-grade gas filtering device |
| CN112246013A (en) * | 2020-10-13 | 2021-01-22 | 福建强纶新材料股份有限公司 | Preparation method of low-cost metal filter material |
| CN113908324A (en) * | 2021-09-26 | 2022-01-11 | 杭州淑洁卫生用品有限公司 | Disposable hygienic product with antibacterial function |
| CN113908324B (en) * | 2021-09-26 | 2022-05-17 | 杭州淑洁卫生用品有限公司 | Disposable hygienic product with antibacterial function |
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