GR1003763B - Method of chemical deposition of composite coatings of conductive polymers onto aluminium alloy surfaces - Google Patents
Method of chemical deposition of composite coatings of conductive polymers onto aluminium alloy surfacesInfo
- Publication number
- GR1003763B GR1003763B GR990100423A GR990100423A GR1003763B GR 1003763 B GR1003763 B GR 1003763B GR 990100423 A GR990100423 A GR 990100423A GR 990100423 A GR990100423 A GR 990100423A GR 1003763 B GR1003763 B GR 1003763B
- Authority
- GR
- Greece
- Prior art keywords
- conductive polymers
- coating
- properties
- aluminium alloy
- chemical deposition
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a method for chemical deposition of composite coatings of conductive polymers from aqueous solutions onto aluminium alloy surfaces aiming at their protection from corrosion.The conductive polymers may be deposited onto an aluminium surface with simple immersion into an aqueous solution of their monomers. The principle of the method is based to the presence in parallel into the said solution of fluorometallic acids (fluorozirconic, fluorotitanium and/or fluorosilic acid) partially neutralised with a basic metal oxide (zinc or manganese oxide).The result is the development of a mixed coat consisting of zirconium oxides, titanium oxides and/or silicic oxides, the conductive polymer as well as metallic zinc and/or manganese. The colour of the coating is black with violet and blue iridescence. By controlling composition conditions, the thickness of the coating may even reach 10 micrometers. The invention apart from being an innovative method for coating aluminium surfaces with conductive polymers, is characterised by the easiness of its application as well as the use of non-toxic chemicals (in the case where the monomers also are non-toxic as for example pyrol and theiophene). Apart from anticorrosive protection, the coating can combine other properties, characheristic of conductive polymers, such as absorption of electromagnetic radiation, electric diode properties, chemical compound sensor properties, etc. For this reason, applications of the invention may extend to a wide technological range.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR99100423 | 1999-12-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
GR990100423A GR990100423A (en) | 2001-08-31 |
GR1003763B true GR1003763B (en) | 2002-02-28 |
Family
ID=10943993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR990100423A GR1003763B (en) | 1999-12-08 | 1999-12-08 | Method of chemical deposition of composite coatings of conductive polymers onto aluminium alloy surfaces |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR1003763B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008094193A2 (en) * | 2006-08-08 | 2008-08-07 | The Boeing Company | Chromium-free conversion coating |
US9476125B2 (en) | 2006-08-08 | 2016-10-25 | The Boeing Company | Chromium-free conversion coating |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994012570A1 (en) * | 1992-11-30 | 1994-06-09 | Bulk Chemicals, Inc. | A method and composition for treating metal surfaces |
US6150032A (en) * | 1995-07-13 | 2000-11-21 | The Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations | Electroactive polymer coatings for corrosion control |
US5807612A (en) * | 1996-08-06 | 1998-09-15 | The University Of Connecticut | Method for coating metals by dip autopolymerization |
US6328874B1 (en) * | 1998-01-05 | 2001-12-11 | Mcdonnell Douglas Corporation | Anodically formed intrinsically conductive polymer-aluminum oxide composite as a coating on aluminum |
-
1999
- 1999-12-08 GR GR990100423A patent/GR1003763B/en not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008094193A2 (en) * | 2006-08-08 | 2008-08-07 | The Boeing Company | Chromium-free conversion coating |
WO2008094193A3 (en) * | 2006-08-08 | 2008-10-16 | Boeing Co | Chromium-free conversion coating |
US9476125B2 (en) | 2006-08-08 | 2016-10-25 | The Boeing Company | Chromium-free conversion coating |
CN104120420B (en) * | 2006-08-08 | 2017-05-03 | 波音公司 | Chromium-free conversion coating |
US10550478B2 (en) | 2006-08-08 | 2020-02-04 | The Boeing Company | Chromium-free conversion coating |
Also Published As
Publication number | Publication date |
---|---|
GR990100423A (en) | 2001-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PG | Patent granted | ||
ML | Lapse due to non-payment of fees |
Effective date: 20120704 |