PL426051A1 - Method of preparation of a silver and nitrogen modified titanium dioxide coating and a coating obtained thereby - Google Patents
Method of preparation of a silver and nitrogen modified titanium dioxide coating and a coating obtained therebyInfo
- Publication number
- PL426051A1 PL426051A1 PL426051A PL42605118A PL426051A1 PL 426051 A1 PL426051 A1 PL 426051A1 PL 426051 A PL426051 A PL 426051A PL 42605118 A PL42605118 A PL 42605118A PL 426051 A1 PL426051 A1 PL 426051A1
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- coating
- titanium dioxide
- silver
- application
- nitrogen
- Prior art date
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Abstract
Przedmiotem zgłoszenia jest sposób wytwarzania powłoki ditlenku tytanu modyfikowanego srebrem i azotem oraz powłoka wytworzona tym sposobem, ze względu na swe właściwości antybakteryjne, przeznaczona jest zwłaszcza do nanoszenia na podłoża ceramiczne, narzędzia, aparaturę, itp. stosowane w szpitalach i innych placówkach służby zdrowia. Powyższy sposób polega na tym, że target z tytanu (o czystości 99,7 - 99,995%), w kształcie tarczy o średnicy 25 - 203 mm i z prętami Ag (o czystości 99,9%) symetrycznie usytuowanymi w nawierconych otworach, stanowiący katodę, rozpyla się magnetronowo na umieszczonym w pobliżu targetu i równolegle do niego podłożu ze szkła boro-krzemowego w obecności mieszanki gazowej o składzie Ar:75% ± 2%, O2:23% ± 2% i N2:2% ± 1% i pod ciśnieniem z zakresu 0,4 - 0,6 Pa, uzyskując powłokę o strukturze amorficznej z krystalicznymi cząstkami Ag o średnicy do 2 nm, a następnie powłokę wyżarza się w temperaturze 450 - 500°C w czasie 1 - 1,5 godz. w atmosferze azotu. Przedmiotem zgłoszenia jest także powłoka ditienku tytanu modyfikowanego srebrem i azotem, w której ditlenek tytanu występuje w fazie rytylu i anatazu, która składa się z fazy: anatazu, Ti2.8O4N, rutylu i nanocząstek Ag o rozmiarze krystalitów do kilkunastu nm oraz niewielkiej objętości względnej struktury amorficznej, przy czym stężeniu Ag w powłoce wynosi 3,3 ÷ 3,8% at.The subject of the application is a method of producing a coating of titanium dioxide modified with silver and nitrogen, and the coating produced by this method, due to its antibacterial properties, is intended especially for application on ceramic substrates, tools, apparatus, etc. used in hospitals and other health care institutions. The above method consists in the fact that a target made of titanium (99.7 - 99.995% purity), in the shape of a disc with a diameter of 25 - 203 mm and Ag rods (99.9% pure) symmetrically located in the drilled holes, constituting the cathode, magnetron sputtering on a borosilicate glass substrate placed near the target and parallel to it in the presence of a gas mixture of Ar: 75% ± 2%, O2: 23% ± 2% and N2: 2% ± 1% and under pressure in the range of 0.4 - 0.6 Pa, obtaining a coating with an amorphous structure with crystalline Ag particles with a diameter of up to 2 nm, and then the coating was annealed at the temperature of 450 - 500 ° C for 1 - 1.5 hours. under nitrogen atmosphere. The subject of the application is also a coating of titanium dioxide modified with silver and nitrogen, in which the titanium dioxide is present in the rityl and anatase phase, which consists of the phases: anatase, Ti2.8O4N, rutile and Ag nanoparticles with crystallite sizes up to several nm and a small relative structure volume amorphous, with the Ag concentration in the coating being 3.3 ÷ 3.8 at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL426051A PL240989B1 (en) | 2018-06-25 | 2018-06-25 | Method of preparation of a silver and nitrogen modified titanium dioxide coating and a coating obtained thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL426051A PL240989B1 (en) | 2018-06-25 | 2018-06-25 | Method of preparation of a silver and nitrogen modified titanium dioxide coating and a coating obtained thereby |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL426051A1 true PL426051A1 (en) | 2020-01-02 |
| PL240989B1 PL240989B1 (en) | 2022-07-11 |
Family
ID=69160868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL426051A PL240989B1 (en) | 2018-06-25 | 2018-06-25 | Method of preparation of a silver and nitrogen modified titanium dioxide coating and a coating obtained thereby |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL240989B1 (en) |
-
2018
- 2018-06-25 PL PL426051A patent/PL240989B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL240989B1 (en) | 2022-07-11 |
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