CN104451573A - Method for preparing antibacterial film using vacuum coating technology - Google Patents
Method for preparing antibacterial film using vacuum coating technology Download PDFInfo
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- CN104451573A CN104451573A CN201310429273.3A CN201310429273A CN104451573A CN 104451573 A CN104451573 A CN 104451573A CN 201310429273 A CN201310429273 A CN 201310429273A CN 104451573 A CN104451573 A CN 104451573A
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Abstract
The invention relates to a method for preparing an antibacterial film using vacuum coating technology. The method comprises a step of fixing a polyethylene film substrate with a thickness of 0.5mm on a sample support using silver with the purity of 99.99% as a target material at room temperature, and a step of preparing a nano-silver film layer by a sputtering mode of magnetron sputtering with the substrate being on the upper side and the target material being on the lower side. In the sputtering process, high-purity argon gas is used as working gas, a distance between the substrate and the target material is 200mm, and the sample support can be moved in a speed of 100mm/s. According to the invention, a silver film having nanostructure is successfully deposited on the surface of the polyethylene sheet, so that antibacterial function of the polyethylene sheet is achieved.
Description
Technical field
The present invention relates to a kind of method adopting vacuum coating technology to prepare antibacterial film.
Background technology
Nano anti-biotic material is a kind of characteristic dimension of occurring in recent years new type of health anti-biotic material at 1 ~ 100mm, which overcome the defect of traditional organic anti-bacterial product in security, broad spectrum, resistance and resistance to hot workability etc., the requirement that people's life comfort level improves constantly with health level can be met, started to obtain application in fields such as building materials, ceramic sanitary appliance, plastics, textiless.At present, the research of the aspect such as physical property, technology of preparing, performance test of nano anti-biotic material has been carried out, and achieves development at full speed, is subject to the common concern of countries in the world.
The preparation method of antibacterial fiber and textile material mainly contains two kinds, a kind of is that the dressing liquid of employing containing silver ions, cupric ion, quaternary ammonium salt antiseptic-germicide floods textiles or prepared by the method for coating Final finishing, accounts for more than 85% of antibiotic fabric and textiles share.But there is following problem in the antibacterial fiber that method is obtained thus and goods: have impact to the outward appearance of fabric, comfortableness; Sterilization effect weather resistance is bad; Impact is had on Final finishing such as the dyeing of fabric; Poor for hydrophobic polyolefins non-woven fabrics wettability, treatment effect is not remarkable.Another kind is inorganic, metal oxide superfine powder by having antibacterial etc. and polymer blending, is then spun into the textile material such as fiber or non-woven fabrics.But superfine powder is difficult to dispersion in the polymer, easily blocks orifice, causes spinning jet to shorten work-ing life, equipment cost rises, and the physical strength of fiber or textiles declines.In addition, the antiseptic-germicide being only exposed to textiles top layer can play a role, so when adopting this method, the acquisition of antibacterial depends on the speed that antiseptic-germicide moves to top layer, and the speed of sterilization is slow.
Silver Nanostructures is due to its distinctive small-size effect, surface effects, quantum size effect, quantum tunneling effect and have the incomparable excellent antibacterial effect of plain metal silver.The method preparing Silver Nanostructures anti-biotic material at present mainly contains modification method, top coat method, proofing method, but equal Shortcomings.
Summary of the invention
The object of the present invention is to provide a kind of method adopting vacuum coating technology to prepare antibacterial film, can medical field be widely used in, as surgical operation, protective clothing, Medical plastic film.
The present invention solves the technical scheme adopted: a kind of medical antibacterial film utilizing magnetron sputtering technique to prepare: at ambient temperature, take purity as the silver of 99.99% be target, the polyethylene film base material of 0.5mm thickness is fixed on specimen holder, adopt base material under, target is in upper structure, the sputtering mode of recycling magnetron sputtering technique prepares nano silver film layer, in sputter procedure, adopting purity to be 99.99% argon gas is working gas, the distance of target and base material is 200mm, and background vacuum is 5 × 10-
4pa, film thickness carrys out Survey control by film thickness instrument.
In above-mentioned making processes, specimen holder moves with 100mm/s speed.
Antibiotic material in medical use need possess following advantage:
1) material has obvious antibacterial bacteriostatic effect to pathogenic microorganism, can keep anti-microbial property within the longer time;
2) membranous type anti-biotic material has excellent physical properties, has certain intensity and snappiness in tissue;
3) material has good biocompatibility, nontoxic to life entity, environmentally friendly;
4) material itself clean environmental protection, application is convenient, preferably has certain for degradation capability.
Embodiment
A kind of method adopting vacuum coating technology to prepare antibacterial film: at ambient temperature, take purity as the silver of 99.99% be target, the polyethylene film base material of 0.5mm thickness is fixed on specimen holder, adopt base material under, target is in upper structure, the sputtering mode of recycling magnetron sputtering technique prepares nano silver film layer, and in sputter procedure, adopting purity to be 99.99% argon gas is working gas, the distance of target and base material is 200mm, and background vacuum is 5 × 10
-4pa, film thickness carrys out Survey control (thickness generally by radionetric survey, then feeds back in test screen) by film thickness instrument.In above-mentioned making processes, specimen holder moves with 100mm/s speed.
Be carried on inorganic natural mineral carrier by metal ion type nano-antibacterial silver ions, carrier energy sustained-release antibacterial ion component-silver ions during use, silver ions destroys the energy metabolism effect of bacterial cell, prevents the breeding of microorganism.In addition, antibacterial metal ions can also react with the functional group such as sulfydryl, amido that exists in the protein in biology, nucleic acid, or enter the reaction such as enzyme and DNA of somatic cells with cell, hinder biological chemistry building-up process and the physiological function of microbe, make it have antibacterial and effect that is sterilization.
Here is the performance test and its test result made medical antibacterial film of the present invention.
Performance test:
With intestinal bacteria and streptococcus aureus for bacterial classification, shaking flask method is adopted to carry out anti-microbial property test to sample.The anti-microbial property of sample is evaluated by bacteriostasis rate, and calculation formula is: X
s=(A-B)/A × 100%, in formula: X
sfor bacteriostasis rate, A is average colony number before tested sample vibration, and B is average colony number after tested sample vibration.If the average colony number after vibration is greater than the average colony number before vibration, bacteriostasis rate calculates by 0.
Test result is as following table:
As can be seen from the data in table, polyethylene sheets without coating process does not possess the ability of Chinese People's Anti-Japanese Military and Political College enterobacteria and streptococcus aureus substantially, bacteriostasis rate is all less than 6% and deposits the sample of nanostructure Ag films, all 87% is greater than for colibacillary bacteriostasis rate, bacteriostasis rate for streptococcus aureus all reaches 100%, and surface nano-structure silver has excellent anti-microbial property.In addition, under identical sputtering condition, the rejection ability of nanostructure Ag films to streptococcus aureus of polyethylene sheets is greater than colibacillary rejection ability, and strengthens gradually with the increase antibacterial energy property of thickness.Consider production cost factor and anti-microbial property, the gauge control of nano silver plating is the most suitable at 1nm.
Claims (2)
1. the method adopting vacuum coating technology to prepare antibacterial film: at ambient temperature, take purity as the silver of 99.99% be target, the polyethylene film base material of 0.5mm thickness is fixed on specimen holder, adopt base material under, target is in upper structure, the sputtering mode of recycling magnetron sputtering technique prepares nano silver film layer, and in sputter procedure, adopting purity to be 99.99% argon gas is working gas, the distance of target and base material is 200mm, and background vacuum is 5 × 10
-4pa, film thickness carrys out Survey control by film thickness instrument.
2. the medical antibacterial film utilizing magnetron sputtering technique to prepare according to claim 1, it is characterized in that: in above-mentioned making processes, specimen holder moves with 100mm/s speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310429273.3A CN104451573A (en) | 2013-09-17 | 2013-09-17 | Method for preparing antibacterial film using vacuum coating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310429273.3A CN104451573A (en) | 2013-09-17 | 2013-09-17 | Method for preparing antibacterial film using vacuum coating technology |
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| CN104451573A true CN104451573A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310429273.3A Pending CN104451573A (en) | 2013-09-17 | 2013-09-17 | Method for preparing antibacterial film using vacuum coating technology |
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| CN (1) | CN104451573A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663109A (en) * | 2020-06-15 | 2020-09-15 | 深圳市浓华生物电子科技有限公司 | Nano antibacterial film for flexible fabric and preparation method thereof |
| CN111748781A (en) * | 2020-06-18 | 2020-10-09 | 九牧厨卫股份有限公司 | Composite antibacterial target material and preparation method and application thereof |
-
2013
- 2013-09-17 CN CN201310429273.3A patent/CN104451573A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663109A (en) * | 2020-06-15 | 2020-09-15 | 深圳市浓华生物电子科技有限公司 | Nano antibacterial film for flexible fabric and preparation method thereof |
| CN111748781A (en) * | 2020-06-18 | 2020-10-09 | 九牧厨卫股份有限公司 | Composite antibacterial target material and preparation method and application thereof |
| CN111748781B (en) * | 2020-06-18 | 2022-08-16 | 九牧厨卫股份有限公司 | Composite antibacterial target material and preparation method and application thereof |
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| DD01 | Delivery of document by public notice |
Addressee: WUXI HUIMING ELECTRONIC TECHNOLOGY CO., LTD. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |