DE102006039077A1 - Pretreatment process, useful e.g. for the adhesion of metallic substrate, comprises treating the metallic substrate in aqueous solution of alkali water glass as anode and providing an adhesion enhancer to surface of the treated substrate - Google Patents
Pretreatment process, useful e.g. for the adhesion of metallic substrate, comprises treating the metallic substrate in aqueous solution of alkali water glass as anode and providing an adhesion enhancer to surface of the treated substrate Download PDFInfo
- Publication number
- DE102006039077A1 DE102006039077A1 DE200610039077 DE102006039077A DE102006039077A1 DE 102006039077 A1 DE102006039077 A1 DE 102006039077A1 DE 200610039077 DE200610039077 DE 200610039077 DE 102006039077 A DE102006039077 A DE 102006039077A DE 102006039077 A1 DE102006039077 A1 DE 102006039077A1
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- Germany
- Prior art keywords
- adhesion
- metallic substrate
- water glass
- substrate
- anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/06—Electrolytic coating other than with metals with inorganic materials by anodic processes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/166—Metal in the pretreated surface to be joined
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur belastungsstabilen Verklebung schwer verklebbarer Metalle und Legierungen durch eine elektrochemische Silikatisierung als Vorbehandlung für die metallischen Teile.The The invention relates to a method for load-stable bonding difficultly bondable metals and alloys by an electrochemical Silikatisierung as a pretreatment for the metallic parts.
Aufgabetask
Eine Vielzahl schwer verklebbarer Metalle bzw. Legierungen wie Edelstähle, Titan oder Cobalt-Chrom-Legierungen sind unmittelbar einer belastungsstabilen, hoch hydrolysebeständigen Verklebung nicht zugänglich, da deren oberflächliche Oxidschicht nur sehr gering ausgeprägt ist. Weil diese Materialien aufgrund ihrer hervorragenden Werkstoffeigenschaften, wie geringer Korrosionsanfälligkeit und mechanischer Festigkeit in Technik und zum Teil auch im medizinischen Bereich breit eingesetzt werden, wurden in der Vergangenheit verschiedene Verfahren der Oberflächenvorbereitung zur Verbesserung der Verklebbarkeit entwickelt.A Variety difficult to bond metals or alloys such as stainless steels, titanium or cobalt-chromium alloys are immediately load-stable, highly hydrolysis resistant Bonding not accessible, because of their superficial Oxide layer is very low. Because these materials are due their excellent material properties, such as low susceptibility to corrosion and mechanical strength in technology and partly in medical Range widely used have been different in the past Process of surface preparation designed to improve the bondability.
Stand der TechnikState of the art
Es ist allgemein bekannt, dass aufbauend auf flammenpyrolytisch abgeschiedene Siliziumdioxidschichten (bekannt z.B. als Pyrosil-Verfahren) auf vielen Materialien, beispielsweise auf Edelstahl, haftfeste Verbunde erhalten werden können, welche auch gegenüber hydrolytischen Belastungen eine gute Widerstandsfähigkeit aufweisen. In der Dentaltechnik ist dieses Verfahren unter dem Namen Silicoater-Technik seit den 80er Jahren für den Kunststoff-Metall-Verbund bekannt. Nachteilig bei den flammenpyrolytischen Verfahren ist neben der thermischen Belastung der Substrate insbesondere die relativ aufwändige und schwierige Behandlung unregelmäßig geformter Teile.It is well known that based on flame-pyrolytically deposited Silicon dioxide layers (known, for example, as the Pyrosil method) many materials, such as stainless steel, adhesive bonds can be obtained which also opposite hydrolytic loads a good resistance exhibit. In dental technology, this process is under the name Silicoater technology since the 80s for the plastic-metal composite known. A disadvantage of the flame pyrolytic process is in addition the thermal load of the substrates in particular the relative complex and difficult treatment of irregularly shaped parts.
Bekannt ist ferner, insbesondere für den Dentalbereich, auch das sogenannte Rocatec-Verfahren, bei welchem ein mit Siliziumverbindungen versehenes Strahlgut zum Einsatz kommt. Beim Strahlprozess kommt es dadurch zu einer Silikatisierung der Oberfläche, welche für einen nachfolgenden Verbundaufbau als Haftgrund fungiert. Wesentlicher Nachteil des Rocatec-Verfahrens ist die mechanische Belastung des Substrates durch den Strahlprozess, welche eine Behandlung beispielsweise dünner Folien oder anderer filigraner Strukturen erschwert oder ausschließt.Known is further, in particular for the dental field, also the so-called Rocatec method, in which one with silicon compounds provided blasting material is used. The blasting process happens thereby to a silicatization of the surface, which for a subsequent composite structure acts as a primer. essential Disadvantage of the Rocatec process is the mechanical stress of the Substrates by the blasting process, which is a treatment, for example thinner Foils or other filigree structures difficult or impossible.
Gemeinsamer Nachteil von flammenpyrolytischer Silikatisierung und Rocatec-Verfahren ist die schlechte Automatisierbarkeit der Behandlung dreidimensional ausgeformter Teile wechselnder Geometrie.common Disadvantage of flame-pyrolytic silicatization and Rocatec process is the poor automation of the treatment three-dimensional shaped parts of changing geometry.
Ebenfalls allgemein bekannt ist auch die Möglichkeit der Abscheidung von haftverbessernden Siliziumoxidschichten auf unterschiedlichen Materialien durch Plasmaprozesse. Plasmaprozesse sind als Vakuumverfahren grundsätzlich nur mit größerem apparativem Aufwand durchführbar.Also well known is the possibility the deposition of adhesive silicon oxide layers on different materials through plasma processes. plasma processes are basically as a vacuum process only with larger equipment Effort feasible.
Technische LehreTechnical teaching
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein alternatives Silikatisierungsverfahren für Metalle als universellen Haftgrund für Verklebungen zur Verfügung zu stellen, welches die oben skizzierten Nachteile der herkömmlichen Silikatisierungsverfahren vermeidet.Of the present invention is based on the object, an alternative Silicatation process for metals as universal primer for Gluing available to provide the above outlined disadvantages of the conventional Silikatisierungsverfahren avoids.
Bei Versuchen wurde überraschend gefunden, dass es gelingt, durch Schalten des zu beschichtenden Materials als Anode und Elektrolyse in einfachen wässrigen Wasserglaslösungen auch ohne jegliche weitere Zusätze dünne silikatische Schichten abzuscheiden, die die Verklebbarkeit in vergleichbarer Weise verbessern wie die oben beschriebenen Silikatisierungsverfahren. Als Elektrolytlösungen können herkömmliche Natron- oder Kaliwassergläser in unterschiedlichen Verhältnissen mit Wasser gemischt verwendet werden. Der Beschichtungsprozess ist in Badform oder als Tampongalvanik ausführbar. Als Gegenelektrode (Katode) können in der Galvanik gebräuchliche Katodenmaterialien wie Stahl oder Edelstahl verwendet werden. Die Art des Wasserglases, dessen Alkali/SiO2-Verhältnis, die Badkonzentration und -temperatur sowie die angelegte Spannung und Behandlungsdauer sind weitgehend unkritisch für die Erreichung eines deutlichen haftungsverbessernden Effektes. Zur Erreichung der maximalen Wirkung müssen gegebenenfalls Optimierungsversuche stattfinden.In experiments, it was surprisingly found that it is possible to deposit by switching the material to be coated as the anode and electrolysis in simple aqueous water glass solutions without any further additives thin silicate layers, which improve the bondability in a comparable manner as the Silikatisierungsverfahren described above. As the electrolyte solutions, conventional soda or potash waterglasses may be mixed in different ratios with water. The coating process can be carried out in bath form or as tampon plating. As counterelectrode (cathode) common cathode materials such as steel or stainless steel can be used in electroplating. The type of water glass, its alkali / SiO 2 ratio, the bath concentration and temperature and the applied voltage and treatment time are largely uncritical for achieving a significant adhesion-improving effect. To achieve the maximum effect, optimization attempts may need to take place.
Die Dicke der abgeschiedenen haftvermittelnden silikatischen Schichten liegt im Nanometerbereich.The Thickness of the deposited adhesion-promoting silicate layers is in the nanometer range.
Vorteilhaft ist es, auf die Schichten als nachfolgenden Schritt einen Silanhaftvermittler oder dessen Lösung aufzutragen, welcher sich einerseits mit dem aufgebrachten silikatischen Untergrund verbindet und der andererseits auf das aufzubringende Klebstoffpolymersystem abgestimmt ist.It is advantageous to the layers as a subsequent step Silanhaftvermittler or Lö apply, which on the one hand connects with the applied silicate substrate and on the other hand is tailored to the applied adhesive polymer system.
Ausführungsbeispiele:EXAMPLES
Die
Anwendung und Wirksamkeit des Verfahrens wird anhand nachfolgender
Beispiele erläutert: Beisiel 1
Die in der vorstehenden Beschreibung, den Patentansprüchen und der Zusammenfassung offenbarten Merkmale des Gegenstandes dieser Unterlagen können einzeln, als auch in beliebigen Kombinationen untereinander für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The in the above description, the claims and the abstract disclosed features of the subject matter of this Documents can individually, as well as in any combination with each other for realization be essential to the invention in its various embodiments.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200610039077 DE102006039077A1 (en) | 2006-08-11 | 2006-08-11 | Pretreatment process, useful e.g. for the adhesion of metallic substrate, comprises treating the metallic substrate in aqueous solution of alkali water glass as anode and providing an adhesion enhancer to surface of the treated substrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200610039077 DE102006039077A1 (en) | 2006-08-11 | 2006-08-11 | Pretreatment process, useful e.g. for the adhesion of metallic substrate, comprises treating the metallic substrate in aqueous solution of alkali water glass as anode and providing an adhesion enhancer to surface of the treated substrate |
Publications (1)
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DE102006039077A1 true DE102006039077A1 (en) | 2008-02-14 |
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DE200610039077 Withdrawn DE102006039077A1 (en) | 2006-08-11 | 2006-08-11 | Pretreatment process, useful e.g. for the adhesion of metallic substrate, comprises treating the metallic substrate in aqueous solution of alkali water glass as anode and providing an adhesion enhancer to surface of the treated substrate |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012105240A1 (en) | 2012-06-15 | 2013-12-19 | Aesculap Ag | Improving adhesion of non-metallic surface area of substrate, involves forming surface area of substrate made of material based on plastic/ceramic, and coating surface area with silicate containing layer by electrodeposition in electrolyte |
US20210286218A1 (en) * | 2019-11-15 | 2021-09-16 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel, manufacturing method, and display device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT318107B (en) * | 1971-12-07 | 1974-09-25 | Stolllack Ag | Process for coating objects |
DE2854160A1 (en) * | 1978-12-15 | 1980-06-19 | Licentia Gmbh | Slurry for electrophoretic coating of iron or steel - contains conducting salt restricting oxidn. of iron and thus preventing discoloration of enamel coatings |
DE19911477A1 (en) * | 1999-03-15 | 2000-09-21 | Intron Jena Ges Fuer Digitale | Sandwich structure, especially for embossed metallic label, includes an applied plastic backing layer, e.g. of fiber reinforced epoxy resin |
-
2006
- 2006-08-11 DE DE200610039077 patent/DE102006039077A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT318107B (en) * | 1971-12-07 | 1974-09-25 | Stolllack Ag | Process for coating objects |
DE2854160A1 (en) * | 1978-12-15 | 1980-06-19 | Licentia Gmbh | Slurry for electrophoretic coating of iron or steel - contains conducting salt restricting oxidn. of iron and thus preventing discoloration of enamel coatings |
DE19911477A1 (en) * | 1999-03-15 | 2000-09-21 | Intron Jena Ges Fuer Digitale | Sandwich structure, especially for embossed metallic label, includes an applied plastic backing layer, e.g. of fiber reinforced epoxy resin |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012105240A1 (en) | 2012-06-15 | 2013-12-19 | Aesculap Ag | Improving adhesion of non-metallic surface area of substrate, involves forming surface area of substrate made of material based on plastic/ceramic, and coating surface area with silicate containing layer by electrodeposition in electrolyte |
DE102012105240B4 (en) * | 2012-06-15 | 2015-03-12 | Aesculap Ag | Method for improving the adhesion of a non-metallic surface area of a substrate and implant |
US20210286218A1 (en) * | 2019-11-15 | 2021-09-16 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel, manufacturing method, and display device |
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Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20130813 |