FR2664261A1 - Improvement to methods of metallising non-metallic surfaces - Google Patents

Improvement to methods of metallising non-metallic surfaces Download PDF

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Publication number
FR2664261A1
FR2664261A1 FR9008860A FR9008860A FR2664261A1 FR 2664261 A1 FR2664261 A1 FR 2664261A1 FR 9008860 A FR9008860 A FR 9008860A FR 9008860 A FR9008860 A FR 9008860A FR 2664261 A1 FR2664261 A1 FR 2664261A1
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FR
France
Prior art keywords
coating
organic solvent
solvent
evaporate
metallic surfaces
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.)
Withdrawn
Application number
FR9008860A
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French (fr)
Inventor
Juguet Bernard
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ARENCO CREATIONS SARL
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ARENCO CREATIONS SARL
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Filing date
Publication date
Application filed by ARENCO CREATIONS SARL filed Critical ARENCO CREATIONS SARL
Priority to FR9008860A priority Critical patent/FR2664261A1/en
Publication of FR2664261A1 publication Critical patent/FR2664261A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3605—Coatings of the type glass/metal/inorganic compound
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54—Electroplating of non-metallic surfaces
    • C25D5/56—Electroplating of non-metallic surfaces of plastics
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3634—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing carbon, a carbide or oxycarbide
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3642—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating containing a metal layer
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/54—Electroplating of non-metallic surfaces

Abstract

Method for the electroplating metallisation of non-metallic surfaces, including the prior creation of a conductive coating on this surface, characterised in that, for the purpose of creating this conductive coating, a layer of a suspension of powder in an organic solvent is firstly applied to this surface, this solvent is then left to evaporate and, secondly, an aerosol of a solution of colloidal graphite in an organic solvent is sprayed from above the resulting coating of bronze powder, this organic solvent preferably being the same as the previous one and is left to evaporate in order to obtain the hybrid (composite) coating.

Description

La présente invention concerne les procédés de métallisation de surfaces de matériaux non conducteurs par revêtement électrolytique. The present invention relates to methods of metallizing surfaces of non-conductive materials by electrolytic coating.

Par matériaux non conducteurs, on entend le verre, les minéraux, les céramiques, les cuirs et tissus, les végétaux, les matières plastiques, les semiconducteurs et analogues, sur lesquels un revêtement métallique ne peut pas être obtenu sans traitement préalable créant une couche conductrice sur laquelle on peut ensuite déposer le revêtement métallique. Non-conductive materials are understood to mean glass, minerals, ceramics, leathers and fabrics, plants, plastics, semiconductors and the like, on which a metallic coating cannot be obtained without prior treatment creating a conductive layer. on which we can then deposit the metal coating

Le problème posé par ce traitement préalable est essentiellement celui de l'adhérence du revêtement. The problem posed by this preliminary treatment is essentially that of the adhesion of the coating.

Plusieurs procédés sont actuellement connus à cet effet. Several methods are currently known for this purpose.

Un premier procédé consiste à effectuer un traitement de cuivrage chimique, avec utilisation d'un métal précieux tel que l'argent pour l'activation de la surface non conductrice. Ce procédé est largement utilisé pour la métallisation des matières plastiques, et est très efficace. Par contre, il est très coûteux à la fois en raison des investissements qu'il nécessite et du prix des produits utilisés. A first method consists in carrying out a treatment of chemical copper plating, with the use of a precious metal such as silver for the activation of the non-conductive surface. This process is widely used for metallization of plastics, and is very effective. On the other hand, it is very expensive both because of the investments it requires and the price of the products used.

Un second procédé consiste à utiliser une solution de graphite colloïdal pulvérisable pour déposer sur la surface à traiter une ou plusieurs couches adhésives. A second method consists in using a sprayable colloidal graphite solution to deposit one or more adhesive layers on the surface to be treated.

Ce procédé présente l'avantage d'être peu coûteux et d'être applicable quel que soit l'état de la surface à traiter. This process has the advantage of being inexpensive and of being applicable regardless of the state of the surface to be treated.

II a par contre l'inconvénient d'être lenf et de conduire à une épaisseur irrégulière de métal, plus importante au voisinage du conducteur et plus faible à mesure de l'éloignement. On the other hand, it has the disadvantage of being lenf and of leading to an irregular thickness of metal, greater in the vicinity of the conductor and less as the distance increases.

Un troisième procédé consiste à utiliser une suspension de poudre de bronze dans un solvant organique tel que le Toluène, I'acétone ou llisobutanol.  A third method consists in using a suspension of bronze powder in an organic solvent such as Toluene, acetone or isobutanol.

Ce procédé donne de très bons résultats pour ce qui est de la rapidité de la métallisation. This process gives very good results in terms of the speed of metallization.

II a par contre l'inconvénient de ne pas conduire à un revêtement d'une très bonne adhérence. On the other hand, it has the disadvantage of not leading to a coating with very good adhesion.

On pourrait penser à combiner les deux derniers procédés dont les avantages compensaient mutuellement les inconvénients. Les tentatives faites en ce sens ont échoué, la métallisation obtenue n'étant pas uniforme, mais présentant des irrégularités. One could think of combining the last two methods, the advantages of which outweigh the disadvantages. Attempts made in this direction have failed, the metallization obtained being not uniform, but having irregularities.

La présente invention élimine tous ces inconvénients grâce à un procédé faisant intervenir dans deux étapes successives les deux procédés antérieurs précités. The present invention eliminates all these drawbacks by means of a method which involves the two aforementioned prior methods in two successive stages.

Le procédé selon l'invention consiste essentiellement à appliquer dans un premier temps une suspension de poudre de bronze dans un solvant organique tel que le toluène, à laisser évaporer ledit solvant en laissant un revêtement de poudre de bronze, puis, dans un second temps à pulvériser sur ce revêtement une solution de graphite colloïdal dans un solvant organique qui soit de préférence le même que celui de la poudre de bronze, en procédant de préférence par deux passages successifs avec évaporation intermédiaire du solvant, en vue d'assurer une égalisation des irrégularités du revêtement de poudre de bronze, et l'obtention d'une surface finale après métallisation exempte d'adhérences, et polie et brillante. The process according to the invention essentially consists in firstly applying a suspension of bronze powder in an organic solvent such as toluene, in allowing said solvent to evaporate leaving a coating of bronze powder, then in a second time spray on this coating a solution of colloidal graphite in an organic solvent which is preferably the same as that of bronze powder, preferably proceeding by two successive passes with intermediate evaporation of the solvent, in order to ensure equalization of the irregularities of bronze powder coating, and obtaining a final surface after metallization free of adhesions, and polished and shiny.

II est important de noter que l'ordre des deux étapes du procédé est impératif:
Alors que, dans le processus de l'invention, le mélange des deux composants du revêtement, à savoir le bronze et le graphite, se fait directement sur la pièce, puisque le solvant du graphite est le même que celui du bronze, I'application du bronze par dessus le graphite provoquerait une détérioration de ce dernier.It is important to note that the order of the two stages of the process is imperative:
While, in the process of the invention, the two components of the coating, namely bronze and graphite, are mixed directly on the part, since the solvent in graphite is the same as that in bronze, the application bronze over graphite would cause deterioration of the latter.

La mise en oeuvre de ce procédé conduit à l'excellents résultats:
- le revêtement conserve une excellente tenue au moment de la métallisation par électrolyse,
- le processus est rapide et régulier,
- le prix de revient est de 8 à 10 fois moins élevé que celui du premier procédé antérieur précité. Ainsi, par exemple, pour un sujet à métalliser représentant une superficie de 10 dm2, le coût moyen de traitement chimique classique est de l'ordre de 30 à 36 francs. Avec le procédé selon l'invention, on utilise 10 à 15 g de de bronze et 15 à 20 g de graphite, ce qui représente au total un coût moyen due.3
Francs.The implementation of this process leads to excellent results:
- the coating retains excellent resistance during metallization by electrolysis,
- the process is fast and regular,
- The cost price is 8 to 10 times lower than that of the first above-mentioned earlier process. Thus, for example, for a subject to be metallized representing an area of 10 dm2, the average cost of conventional chemical treatment is of the order of 30 to 36 francs. With the process according to the invention, 10 to 15 g of bronze and 15 to 20 g of graphite are used, which in total represents an average cost due.
Franks.

Les réactifs utilisés dans le présente procédé se trouvent tout préparés dans le commerce. Ainsi, comme solution de graphite colloïdal, on peut utiliser le produit commercialisé en aérosol sous la dénomination GRACHIT 33 par la société Kontakt Chemie.  The reagents used in the present process are all commercially prepared. Thus, as a colloidal graphite solution, it is possible to use the product sold in an aerosol under the name GRACHIT 33 by the company Kontakt Chemie.

Claims (4)

REVENDICATIONS 1. Procédé pour la métallisation galvanoplastique de surfaces non métalliques, comportant la création préalable sur cette surface d'un revêtement conducteur, caractérisé en ce que, en vue de la création de ce revêtement conducteur, on applique dans un premier temps, sur cette surface, une couche d'une suspension de poudre dans un solvant organique, puis on laisse évaporer ce solvant et, dans un second temps, on pulvérise par dessus le revêtement de poudre de bronze résultant, un aérosol d'une solution de graphite colloïdal dans un solvant organique, de préférence le même que le précédent, que l'on laisse évaporer pour obtenir le revêtement mixte.1. Method for the electroplating of non-metallic surfaces, comprising the prior creation on this surface of a conductive coating, characterized in that, with a view to the creation of this conductive coating, a first step is applied to this surface , a layer of a suspension of powder in an organic solvent, then this solvent is allowed to evaporate and, in a second step, an aerosol of a solution of colloidal graphite is sprayed over the resulting bronze powder coating organic solvent, preferably the same as the previous one, which is allowed to evaporate to obtain the mixed coating. 2. Procédé selon la revendication 1, caractérisé en ce que, dans le second temps, on procède en deux passages, avec évaporation intermédiaire du solvant.2. Method according to claim 1, characterized in that, in the second time, one proceeds in two passages, with intermediate evaporation of the solvent. 3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que le solvant organique commun est le toluène.3. Method according to one of claims 1 and 2, characterized in that the common organic solvent is toluene. 4. Articles en matériaux à surface non conductrice métallisée caractérisé en ce qu'ils sont obtenus par le procédé selon l'une quelconque des revendications I à 3. 4. Articles made of materials with a metallized non-conductive surface, characterized in that they are obtained by the method according to any one of claims I to 3.
FR9008860A 1990-07-06 1990-07-06 Improvement to methods of metallising non-metallic surfaces Withdrawn FR2664261A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9008860A FR2664261A1 (en) 1990-07-06 1990-07-06 Improvement to methods of metallising non-metallic surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9008860A FR2664261A1 (en) 1990-07-06 1990-07-06 Improvement to methods of metallising non-metallic surfaces

Publications (1)

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FR2664261A1 true FR2664261A1 (en) 1992-01-10

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FR9008860A Withdrawn FR2664261A1 (en) 1990-07-06 1990-07-06 Improvement to methods of metallising non-metallic surfaces

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622108A (en) * 1986-05-05 1986-11-11 Olin Hunt Specialty Products, Inc. Process for preparing the through hole walls of a printed wiring board for electroplating
DE3529302A1 (en) * 1985-08-16 1987-02-19 Volker Betz Process for producing electrically conductive surfaces on dielectrics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529302A1 (en) * 1985-08-16 1987-02-19 Volker Betz Process for producing electrically conductive surfaces on dielectrics
US4622108A (en) * 1986-05-05 1986-11-11 Olin Hunt Specialty Products, Inc. Process for preparing the through hole walls of a printed wiring board for electroplating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
W. PFANHAUSER: "Galvanotechnik", vol. II, 1941, page 1207, Akademische Verlagsgesellschaft Becker & Erler, Kom.-Ges., Leipzig, DD *

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