EP2524014B1 - Système de modification de surface conçu pour revêtir des surfaces de substrat - Google Patents

Système de modification de surface conçu pour revêtir des surfaces de substrat Download PDF

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Publication number
EP2524014B1
EP2524014B1 EP11723859.2A EP11723859A EP2524014B1 EP 2524014 B1 EP2524014 B1 EP 2524014B1 EP 11723859 A EP11723859 A EP 11723859A EP 2524014 B1 EP2524014 B1 EP 2524014B1
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EP
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Prior art keywords
particles
metal
polymer
coating
stabilizing
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EP11723859.2A
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German (de)
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EP2524014A2 (fr
Inventor
Ringo Grombe
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Leibniz Institut fuer Polymerforschung Dresden eV
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Leibniz Institut fuer Polymerforschung Dresden eV
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes

Definitions

  • the invention relates to a surface modification system for the coating of substrate surfaces with a metallic character, wherein a dispersion of polymer-protected particles is used.
  • a dispersion of polymer-protected particles is used.
  • the interaction of the particles with the substrate surface and the anchoring of the polymer chains result in an adhesion promoter layer to which further target molecules can be bound by charge interaction.
  • biocompatible polymers are particularly useful for e.g. Medical devices.
  • nanoparticles for coating electrodes is in WO2009046382 A2 described.
  • the preparation of a primary and secondary nanoparticle layer on metal surfaces is described, wherein the primary nanoparticle layer has better adhesion properties to the metal surface of the electrode than the secondary nanoparticle layer, which in turn forms a compound with the primary nanoparticle layer.
  • the US2009087644 A1 discloses a method for coating substrates with a layer of functionalized nanoparticles, wherein the substrate is coated in a solution with a polymeric binder containing the functionalized nanoparticles by immersion. Subsequently, a further coating operation is carried out with a second layer of functionalized nanoparticles, whereby a gradient with respect to a desired material property is formed.
  • the US2007036510 A1 discloses methods of making a plastic packaging material for microelectronic products wherein a layer containing nanoparticles is in contact with the substrate. By using nanoparticles, various properties of the packaging material can be adjusted for the respective application.
  • US20040055420 describes the adsorption of dispersed polymer-stabilized nanoparticles on electrodes.
  • the deposition methods include electrophoretic as well as thermal processes.
  • a subsequent etching process increases the surface roughness of the electrode and thus its efficiency.
  • Further stabilizing substances for metallic nanoparticles are electron donor compounds in which the electron-rich groups are arranged in a manner favorable for the stabilization of nanoparticles.
  • the derivatives of polyacrylic acid Falletta et al J. Phys. Chem. C, 112 2008, 11758-11766
  • Poly (meth) acrylic acid Dubas et al Talanta 76 2008 29-33
  • polyacrylamide Bonini et al Langmuir 24 2008 12644-12650
  • Mainly paints, dip, flow and roller coating or vapor deposition strategies e.g., thermal spray, cold vapor deposition, ultrasonic technique, Parylene coating, PTFE coating, etc. are used.
  • metals or colloidal substances eg water-soluble dyes
  • electrophoretic effects-based method of electroplating S. Paul, Surface Coating, Science and Technology, J. Wiley Ltd, 1996, p. 497 .
  • this metal components of different and complex geometry can be processed with low material losses.
  • the use of water-soluble inks reduces solvent emissions.
  • the stability and homogeneity of the coating is determined to a large extent by the purity of the metal surface. Therefore, washing or etching steps are usually integrated into the coating method. In this case, chlorine-containing solvents, (chromium-phosphorus, hydrochloric and sulfuric) acids or alkaline media are used.
  • the metal surface is often provided with a phosphate coating. A large number of methods are available for this, but only a few result in a homogeneous, extremely thin and microcrystalline coating ( G. Reinhard, Prog. Org. Coat., 15, 1987, p. 125 ).
  • the metal surfaces must be treated prior to application of coating reagents.
  • etchants or detergents are used, which increase the disposal costs of the respective processes.
  • the object of the present invention is therefore to provide an improvement in the adhesion promotion on a surface with a metallic character by coating reagents and the further functionalization of the adhesion promoter layer. Due to the chemical and physical properties of metal surfaces, the wetting and adhesion by adhesion promoters and thus the homogeneous and stable coating is problematic. In addition, the environmental compatibility and the health protection is a challenge.
  • the object is achieved by a method according to the main claim. Advantageous embodiments are given in the appended claims. The object is further achieved by a coated metal surface according to claim 15.
  • the object is achieved by a method for coating a substrate surface by means of dispersed particles.
  • the particles are first dispersed in a solvent with the aid of a stabilizing polymer.
  • the substrate surface to be coated is wetted with the stabilized particle solution, wherein a fixation of the polymer chains takes place in the spaces between the metal surface and particles by a clamping mechanism.
  • this substrate particle binding can be formed by penetration / diffusion processes of the particles into the surface.
  • collapsing and aggregating the colloidal system a stable particle layer is formed on the substrate surface.
  • the unbonded particles are removed by washing with a solvent. If a further stabilization of the surface modification system is desired, then stabilizing reactions can be carried out. For this purpose, additives such as free-radical initiators and / or crosslinkers and / or complexing agents and / or surfactants can be helpful. Furthermore, stabilization can be brought about by the formation of interpenetrating networks (IPN).
  • IPN interpenetrating networks
  • ionic charges now takes place on the coated substrate surface.
  • These can be prepared by means of chemical reactions known to those skilled in the art from organic or polymer analog chemistry.
  • particle systems with ionically charged stabilizing polymers can also be used.
  • Another possibility for the immobilization of target molecules is the application of stereo-complexation. Such complexes arise from the interaction of (D, L) stereoisomers.
  • Another possibility for the immobilization of target molecules is the application of hydrogen bonds.
  • thermo-reversible hydrogels Due to the system collapse upon temperature increase, adhesion promoter layers can be produced using thermoreversible hydrogels, on-demand.
  • the final step is the drying of the coated substrate surface.
  • a substrate surface with a metallic character is understood to mean an electrically conductive surface.
  • the substrate surface may be part of a metallic article of various geometries (e.g., cable, plate, rod, tube, ball, tissue, stent-like constructs), a porous wafer, a fiber composite, or the like.
  • the substrate surface may have a flat or structured surface, which allows the adhesion of the surface modification system.
  • the substrate surface may comprise one or more elements selected from groups 3 to 16 and the lanthanides of the Periodic Table of the Elements, their isotopes, salts, as well as mixtures, alloys, etc. thereof.
  • the adhesion promoter layer can be stabilized by initiating crosslinking steps.
  • crosslinking agents and polymerization initiators are added to the adhesion promoter system. Addition of radical initiators and / or crosslinkers may be helpful in initiating polymerization reactions (eg, radical or condensation reaction) as well as polymer-analogous reactions (e.g., nucleophilic or electrophilic reactions). Additional options for such stabilization are provided by beta and gamma ray crosslinking steps.
  • technologies such as lithographic process etching techniques may be employed to provide more or less targeted structural properties to affect surface roughness.
  • Such a structuring method can bring about an influence on the surface wetting.
  • stabilization of the primer layer may be enforced by rinsing the particle destabilizing LSM.
  • the rinse causes a collapse of the particles and thus increases the interaction in the clamping complex substrate-particle polymer.
  • the particles used are metal particles / metal alloy particles / metal oxide particles.
  • the particles may contain one or more elements selected from groups 3 to 16 and the lanthanides of the Periodic Table of the Elements, their isotopes, salts, as well as mixtures, alloys, etc. thereof.
  • the particles can have a wide variety of shapes and structured surfaces.
  • the dimensions of the particles used are in the micron / submicron or nanometer range. Particles of this size can be used for surface penetration / diffusion processes and are more easily dispersed and stabilized by stabilizing reagents such as e.g. Protect polymers from premature coagulation.
  • electrophoretic deposition eg EPD
  • chemical in situ deposition eg in situ nano-particle deposition system (NPDS)
  • salts of reducible metals eg Au, Ag or Fe
  • reducing agents z eg Au, Ag or Fe
  • poly-8-hydroxyquinolines eg Au, Ag or Fe
  • NPDS nano-particle deposition system
  • the particles are at least partially coated with one or more colloid-stabilizing polymers.
  • a differentiated modification e.g. be made possible on the uncoated particle sections.
  • the particles have a functionalization by the colloid-stabilizing polymers used. These functionalities can also be generated by a subsequent reaction step. The functionalization is necessary for a stable and homogeneous Represent coating with target molecules.
  • the dispersion of inorganic particles with organic particles e.g. Isobutylcyanoacrylaten or gelatin, added.
  • organic particles e.g. Isobutylcyanoacrylaten or gelatin
  • the polymer used is a biocompatible polymer or hydrogel-forming polymer.
  • This is of particular interest for biomedical and biotechnological applications.
  • such hydrophilic or bio-functional surfaces can be displayed on medical devices.
  • a further embodiment of the invention takes place after the coating of the substrate surface with the functionalized particles, a loading of target molecules, wherein the interaction between the primer layer and target molecule can be ionic, complex, chelate nature. Further interactions may be due to interpenetrating networks (IPN), hydrogen bonds, or other electrostatic effects.
  • IPN interpenetrating networks
  • a combination of collapsed particles and interpenetrating networks is used, thereby reducing the susceptibility to stress / cracking of the subsequently applied coating with target molecules.
  • interpenetrating networks IPNs
  • the collapsed particles act as centers of stress relaxation and thereby reduce the susceptibility to stress / cracking of the subsequently applied coating with target molecules.
  • so-called 'Pfropff reactions are used for the coupling of target molecules US2010087343A1 .
  • functional layers such as sliding films can be produced on the polymer materials.
  • the coated substrate surface is functionalized with biologically active molecules, e.g. Antibodies and nucleotides used.
  • biologically active molecules e.g. Antibodies and nucleotides used.
  • antiseptic monomers such as e.g. Isobutylcyanoacrylate, be reacted on the surface. Further polymer-analogous reactions can be used to show additional surface properties.
  • the coated substrate surface is used for functionalization with organic (nano) particles. If e.g. like the isobutylcyanoacrylate particles used in the pharmaceutical industry, their high specific surface area can produce antiseptic coatings with significantly reduced material consumption. At the resulting surface further target molecules can be reacted.
  • the coated substrate surface is used for functionalization with glucan-like oligomers / polymers such as cellulose, starch, heparin, chitosan, hyaluronic acid, etc.
  • glucan-like oligomers / polymers such as cellulose, starch, heparin, chitosan, hyaluronic acid, etc.
  • Such coatings have a high degree of biocompatibility.
  • the coated substrate surface is used to immobilize functional coatings (eg non-reflective, antifouling, lubricating film, etc); synthetic / natural target molecules, hydrogel polymers; Drugs; peptides; antimicrobial agents; lipids; polysaccharides; biologically active molecules such as antibodies, nucleotides, enzymes, signal peptides, fluorescent / phosphorescent dyes, minerals, nanoparticles; Clay minerals or activated carbon eg for water treatment; clathrates; Cyclodextrin and other supramolecules, such as for detoxification or endotoxin clearance; electrically conductive metal surfaces, photoelectrically active surfaces, etc. used.
  • functional coatings eg non-reflective, antifouling, lubricating film, etc
  • synthetic / natural target molecules e.g., hydrogel polymers
  • Drugs e.g non-reflective, antifouling, lubricating film, etc
  • lipids e.g., lipo
  • the substrate to be coated is immersed in a stabilized dispersion of metal particles.
  • the temperature of the dispersion may be room temperature.
  • the dispersion can also be heated.
  • the reaction time can vary over a period of 180 minutes.
  • colloidal polymer-stabilized metal particles Fig. 1 , 104
  • Fig. 1 , 100 colloidal polymer-stabilized metal particles
  • Fig. 1 , Step 101 colloidal polymer-stabilized metal particles
  • Fig. 1 , Step 101 By aggregation and collapse ( Fig. 1 , Step 101) of the metal structures results in an additional metal layer with polymer chains immobilized by clamping complexes ( Fig. 1 , 105).
  • This step results in a coating acting as a primer, which serves as a basis for further functional coatings.
  • a modification of the primer layer is performed. If the metal particle dispersion is stabilized with an amidic polymer such as, for example, polyvinylpyrrolidone or polyacrylamide, amino or carboxylate functions (in the alkaline medium) can be obtained by hydrolysis ( Fig. 1 , 106) are generated. By pH Variation can also change the charge of the surface. Finally, oppositely charged target molecules can be immobilized ( Fig. 1 , Step 103). Subsequently, the drying of the applied coating ( Fig. 1 , 107).
  • an amidic polymer such as, for example, polyvinylpyrrolidone or polyacrylamide
  • amino or carboxylate functions in the alkaline medium
  • hydrolysis Fig. 1 , 106
  • pH Variation can also change the charge of the surface.
  • oppositely charged target molecules can be immobilized ( Fig. 1 , Step 103). Subsequently, the drying of the applied coating ( Fig. 1 , 107).
  • the substrate to be coated is immersed in a stabilized dispersion of metal particles.
  • the temperature of the dispersion may be room temperature.
  • the dispersion can also be heated.
  • the reaction time can vary over a period of 180 minutes.
  • adsorb ionically charged colloidal polymer-stabilized metal particles Fig. 2 , 203 to the metal substrate surface ( Fig. 2 , 200).
  • aggregation and collapse ( Fig. 2 , Step 201) of the metal structures results in an additional metal layer with polymer chains immobilized by clamping complexes ( Fig. 2 , 204).
  • This step results in an ionically charged coating acting as an adhesion promoter, which serves as the basis for further functional coatings.
  • the metal particle dispersion is stabilized with a polymer such as, for example, polyacrylic acid (PAA), negatively charged functions such as carboxylate functions can be generated in the sufficiently alkaline medium and charged target molecules can be immobilized ( Fig. 2 , Step 202). Subsequently, the drying of the applied coating ( Fig. 2 , 205).
  • PAA polyacrylic acid
  • the surface modifications according to the invention represent the possibility of incorporation of drug systems or coupling of specific ligands. In this way, biocompatible surfaces can be created.
  • the surface modification system of the invention is used for therapeutic and analytical applications. Immobilization of hydrophilic / lubricious / antimicrobial / abrasion-resistant / heat-resistant / corrosion-stable / fracture-resistant substances takes place and / or other functional coatings. Immobilization may be followed by the goal of altering the physical properties of the support material, such as waterproofness, mechanical strength, chemical resistance, light fastness, abrasion resistance, gas and moisture permeability, design, appearance, feel, surface design, and bulk. The method is therefore also suitable for solving technical problems through biologically inspired solutions (bionics).
  • the surface modification system of the present invention is used to decorate the substrate surface with charge carriers such as ionic biomolecules (e.g., glycosaminoglycans). So biocompatible or antifouling surfaces can be produced.
  • charge carriers such as ionic biomolecules (e.g., glycosaminoglycans). So biocompatible or antifouling surfaces can be produced.
  • the surface modification system of the present invention is useful for functionalizing the substrate surface with biologically active molecules, e.g. Antibodies and nucleotides used. This is of particular interest in analytical medical technology.
  • the surface modification system according to the invention is used to functionalize the substrate surface with fluorescence / phosphorus molecules for fluorescence / phosphorus determination systems.
  • the magnetic particle surface modification system of the present invention is used for medical imaging systems for malignant tissue examination.
  • the surface modification system according to the invention is used for the immobilization of lipid membrane viscoses (liposomes) or polymeromas as biocompatible / biodegradable active substance carrier or biological membrane on the substrate surface.
  • the surface modification system of the present invention is used to immobilize surfactant oligomers together with lecithin to solubilize cholesterol on the substrate surface.
  • the surface modification system of the invention is used to apply a drug-release coating on the substrate surface at a defined rate of release.
  • the surface modification system of the present invention is used to immobilize superparamagnetic iron oxide particles for metastasis elimination on the substrate surface.
  • the surface modification system according to the invention is used for decoration of water pipes with antimicrobial agents for outdoor use for the disinfection of water.
  • the surface modification system according to the invention is used for decoration of water pipes with antimicrobial agents for outdoor use for the disinfection of water.
  • the surface modification system according to the invention is used to prepare metal / polymer systems with defined structures by laser-chemical treatment of immobilized metal chelates.
  • the surface modification system according to the invention is used for embedding clay minerals or activated carbon for water treatment (detoxification).
  • the surface modification system according to the invention is used for further industrial painting or decorative design.
  • novel or conventional paint systems may be considered.
  • the surface modification system according to the invention is used for embedding fuel cell components.
  • the surface modification system according to the invention is used for embedding functional (nano) particles (magnetic, light-emitting, etc.); solid-state hosts (eg polyurethane / silica ORMOSILs) used to store LASER dyes, etc.
  • functional particles magnetic, light-emitting, etc.
  • solid-state hosts eg polyurethane / silica ORMOSILs
  • redox-capable systems eg iron particles
  • the incorporation of redox-capable systems can enable redox polymerization on the surface.
  • the stabilization of the iron oxide particles is achieved so far by a coating with polymers such as dextran (Ferridex ®), carboxydextran (Resovist ®), albumin and starch or a liposomal envelope.
  • polymers such as dextran (Ferridex ®), carboxydextran (Resovist ®), albumin and starch or a liposomal envelope.
  • IPN interpenetrating networks
  • the surface modification system according to the invention is used as a lubricant substitute in ball bearings.
  • the surface modification system according to the invention is used for coating composite materials with sufficient conductivity, such as, for example, carbon black-reinforced plastics (CFRP), short-fiber reinforced metals, so-called metal matrix composites (MMC).
  • CFRP carbon black-reinforced plastics
  • MMC metal matrix composites
  • the surface modification system of the invention is used to coat analytical equipment such as e.g. Chromatography columns used.
  • analytical equipment such as e.g. Chromatography columns used.
  • the surface modification system according to the invention is used for the adhesion mediation between components of the same or different material / surface properties.
  • the surface modification system according to the invention is used for coating materials which are used in concrete constructions similar to the irons.
  • the surface modification system of the present invention is used to coat materials used in the testing of plastics materials (e.g., metal strips in natural rubber)
  • the surface modification system according to the invention is used for the production of carbide / nitride or similar abrasion-resistant / oxidation-stable / protective Layers (as shown, for example, by physical vapor phase deposition).
  • the stabilizing polymer by (partial) decomposition for example, serve as a carbon / nitrogen or other elementary source.
  • Strength-enhancing substances could also be obtained by additional additives, such as after in the document DE102004014076B3
  • the polymer phase may be used as an intermediate layer for stress absorption.
  • the abrasion-resistant systems can be used for example on metallic cutting tools, which have ceramic-like properties on the surface after the appropriate treatment.
  • Abrasion resistant layers are also interesting in terms of computer drives. An ever-increasing data density on hard disks requires better resolution and better mechanical stability of the surfaces. Abrasion-resistant surfaces are therefore of great interest in order to avoid damage to the drive.
  • the surface modification system of the invention is used in combination with stimuli-responsive adhesion mediators (with stimuli such as temperature, electromagnetic radiation, etc.) for on-demand adhesions.
  • stimuli-responsive adhesion mediators with stimuli such as temperature, electromagnetic radiation, etc.
  • Such may e.g. as adhesive joints on a car body replace the welds etc. and thus facilitate the recycle process.
  • Hot-melt adhesives such as polyamides and Micropearl F30 should be mentioned here as stimuli-responsive adhesion promoters.
  • the surface modification system according to the invention itself can act as a stimuli-responsive adhesion mediators. In this way, the adhesive strength and thus the adhesion can be influenced.
  • the surface modification system of the invention is used to coat semiconductor surfaces (such as silicon wafer surfaces).
  • semiconductor surfaces such as silicon wafer surfaces.
  • an increase in the efficiency of the solar cells can be achieved by the plasmon resonance of immobilized metal nanoparticles.
  • the surface modification system according to the invention is used for the production of circuits.
  • defined structures with a small space requirement can be realized by the use of (laser) optical methods, electron bombardment, ion bombardment or other etching methods.
  • the surface modification system according to the invention is used in dental or orthopedic applications.
  • a coating of e.g. Titanium components thus an improved compatibility with the body tissue can be achieved.
  • the surface modification system according to the invention is used in electrical applications. Strongly adherent, elastic, homogeneous and defect-free insulation can be achieved, for example, by coating with paper fibers. Similar applications are conceivable for capacitors or transformers.
  • the surface modification system according to the invention is used for the homogeneous coating of metal foam.
  • Bioresorbable components made of ferrous metal foams are very interesting for osteosurgical application.
  • the integration of these components is enhanced by pre-immobilized apatites.
  • due to different material properties between metal and mineral, such systems are mechanically and thermally unstable.
  • the surface modification system of the present invention can stabilize such systems by compensating for any shear forces due to the combination of surface roughness and polymer chain mobility.
  • the surface modification system according to the invention is used for the production of protective coatings on e.g. Used steels.
  • immobilized powder filled pastes e.g. Aluminide protective coatings which reduce hot air corrosion resistance in e.g. Increase automotive catalytic converters.
  • inventive Surface modification system with water glass such as in DE4040153A1 described, coated.
  • water- and fire-stable surfaces can be produced, which are break-stabilized by the stress-absorbing effect of the particle-protecting polymers.
  • the surface modification system according to the invention is used to display analytical surfaces. Possible applications are in screening analysis such as e.g. To find SPR spectroscopy.
  • the immobilized by means of the clamping mechanism polymers completely novel surface functionalities can be displayed, which corresponds to a wider range of applications.
  • the surface modification system according to the invention for the diamond coating is used and so abrasion-stable, corrosion-resistant layers combined with lubricious surfaces.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Materials For Medical Uses (AREA)
  • Chemically Coating (AREA)

Claims (13)

  1. Procédé de revêtement d'une surface de substrat de nature métallique au moyen de particules, comprenant les étapes suivantes :
    - dispersion des particules dans un solvant, les particules utilisées étant des particules de métal/d'alliage métallique/d'oxyde métallique et présentant une dimension dans le domaine micronique/submicronique/nanométrique,
    - stabilisation des particules colloïdales avec un polymère, le polymère étant un polymère biocompatible stabilisateur de dispersion ou un polymère formant un hydrogel,
    - imprégnation de la surface métallique à revêtir avec la solution de particules stabilisée, une fixation des chaînes polymères dans les intervalles entre surface métallique et particules ayant lieu par un mécanisme de pincement,
    - formation d'une couche stable de particules sur la surface de substrat par collapsus et agrégation du système colloïdal,
    - élimination des particules non liées à la fin de l'opération de revêtement par lavage avec un solvant,
    - génération de charges ioniques sur la surface métallique revêtue et
    - séchage final de la surface métallique revêtue.
  2. Procédé selon la revendication 1, caractérisé en ce qu'une stabilisation de la couche adhésive est effectuée par initiation d'étapes de réticulation.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que les particules de métal/d'alliage métallique/d'oxyde métallique utilisées présentent un ou plusieurs éléments sélectionnés dans les groupes 3 à 16 et les lanthanides du système périodique des éléments, leurs isotopes, sels, ainsi que des mélanges et alliages de ceux-ci.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que les particules sont revêtues au moins partiellement d'un ou plusieurs polymères stabilisateurs de colloïdes.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que différentes stratégies de dépôt, telles que dépôt par électrophorèse et dépôt chimique in situ, sont utilisées en combinaison et séparément.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que les particules présentent une fonctionnalisation par les polymères stabilisateurs de colloïdes utilisés.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que des dispersions sont utilisées, qui présentent des particules stabilisées par un polymère et/ou un ou plusieurs composants oligomères/polymères et/ou initiateurs de radicaux et/ou agents de réticulation et/ou agents complexants et/ou agents tensio-actifs, lesquels permettent des réactions de réticulation stabilisatrices du système.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que d'autres réactions de réticulation sont effectuées pour une stabilisation supplémentaire des surfaces modifiées.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que des charges ioniques sont générées par une étape de réaction sur le polymère stabilisateur de dispersion, la charge ionique de la surface modifiée étant modifiée par variation du pH.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'après le revêtement de la surface métallique avec les particules fonctionnalisées, un chargement avec des molécules cibles est effectué, l'interaction entre la couche adhésive et la molécule cible étant basée sur des effets électrostatiques de type stéréocomplexe ou des liaisons hydrogène.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une combinaison de particules collabées et de réseaux interpénétrants est utilisée, ce qui diminue la sensibilité au stress du revêtement avec des molécules cibles appliqué ensuite.
  12. Surface de substrat revêtue de nature métallique réalisée selon l'une des revendications 1 à 11.
  13. Utilisation d'une surface métallique revêtue selon la revendication 12 pour immobiliser des revêtements fonctionnels, comme par exemple non réfléchissants, antisalissures, film lubrifiant ; molécules cibles synthétiques/naturelles, polymères d'hydrogel ; médicaments ; peptides ; agents antimicrobiens ; lipides ; polysaccharides ; molécules biologiquement actives telles qu'anticorps, nucléotides, enzymes, peptides signaux, colorants fluorescents/phosphorescents, substances minérales, nanoparticules ; minéraux argileux ou charbon actif par exemple pour le traitement de l'eau ; clathrates ; cyclodextrine et autres supramolécules, par exemple pour la décontamination ou l'élimination des endotoxines ; surfaces isolantes, surfaces photoélectriquement actives, surfaces biomimétiques.
EP11723859.2A 2010-01-07 2011-01-05 Système de modification de surface conçu pour revêtir des surfaces de substrat Not-in-force EP2524014B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010004553 DE102010004553A1 (de) 2010-01-07 2010-01-07 Oberflächenmodifizierungssystem für die Beschichtung von Substratoberflächen
PCT/DE2011/000011 WO2011082706A2 (fr) 2010-01-07 2011-01-05 Système de modification de surface conçu pour revêtir des surfaces de substrat

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EP2524014A2 EP2524014A2 (fr) 2012-11-21
EP2524014B1 true EP2524014B1 (fr) 2015-08-26

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DE (2) DE102010004553A1 (fr)
WO (1) WO2011082706A2 (fr)

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WO2011082706A2 (fr) 2011-07-14
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WO2011082706A9 (fr) 2011-12-29
WO2011082706A3 (fr) 2011-10-20

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