DE102007058712A1 - Modular, solvent-free, water-based sol-gel system with predeterminable properties for use e.g. as anti-corrosion primer, contains at least 4 matched compounds, at least one being a base component - Google Patents

Abstract

A modular, VOC-free, water-based sol-gel system (I) with at least one predeterminable property, containing at least four storage-stable, water-based, solvent-free inorganic, organic or metal-organic compounds matched for combination with one another as components of a multi-component sol-gel system, at least one of which is a base component. Independent claims are included for (1) coatings made by using (I), which are abrasion-resistant and/or corrosion-resistant and/or easy to clean and/or UV-resistant and/or solvent-resistant and/or temperature-resistant (2) a method (M1) for the production of application-specific sol-gel systems from at least two components, by determining the intended application of the system, comparing this with predetermined data, selecting components and the number of components from these data, selecting the ratios of quantities of these components and making the components (separately) in accordance with these selections (3) a method (M2) for adjusting the properties of a sol-gel system based on (I), by specifying at least one property of the required system, and selecting components of the system from predetermined data relating to quantities, numbers and types of components, so as to obtain a correlation with the specified properties (4) an evaluating device for performing M1, comprising acquisition unit(s) for the specified application of (I), comparison unit(s) to compare the application with data from a data storage unit, selection unit(s) for selecting components from the storage unit, selection unit(s) for selecting the number of components and/or their quantity ratios, and output unit(s) for the selected component data .

Description

Field of the invention:

The The invention relates to a modular VOC-free, water-based sol-gel system, a process for the preparation of an application-specific sol-gel system and an evaluation device for carrying out the method and a method for adjusting the properties of such a sol-gel system.

Background of the invention:

It is known from an alkoxysilane by hydrolysis and condensation a sol and a gel can be formed by further condensation. Upon complete crosslinking of the gel, a coating is formed. In the first step, silanols are prepared by hydrolysis from alkoxysilanes educated. As a further hydrolysis product is formed corresponding Alcohol, especially ethanol or methanol. Because silanols are very reactive are, these react with OH functions of surfaces, for example, metal surfaces, for. Eg aluminum or iron surfaces. Unless suitable surfaces are available, the silanols condense to siloxanes. By progressive hydrolysis and condensation form polymers Structures and it comes to the formation of sols. The latter are but not for a long time storage stable. By further condensation of the sol particles with one another becomes the gel state reached.

The Application of the sol-gel system to a substrate usually becomes made in the liquid state as a sol. By more Condensation hardens the coating on the substrate, so that first the gel state is reached. By as possible complete condensation of the remaining silanol groups creates the final formation of the coating. Usually this is carried out thermally, with purely inorganic ceramic Systems very high temperatures in the range of 400 ° C and higher are required for this.

Conventional sol-gel systems show a high VOC content, due to the use of solvents and the formation of hydrolysis alcohol. Apart from the problem that these systems contain solvents, they are not long-term storage stable, but must be applied within a few hours. As in the European patents EP 675 128 B1 . EP 953 591 B1 . EP 1 031 593 B1 . EP 716 127 B1 and EP 716 128 B1 described, a VOC-free sol-gel system was developed and offered under the name Dynasylan ^® HYDROSIL from Evonik Degussa GmbH, in which a special silane cocondensation method is performed. In this case, water-insoluble silanes are brought into solution and additionally stabilized silanol group-containing sols stabilized, so prevented from further condensing. This leads to the formation of storage-stable, water-based, silanol group-containing brine. In this case, polymeric sol particles are colloidally stable in water. The particles have a diameter of 5 to 40 nm.

It has also been found that various factors influence the hydrolysis behavior of the alkoxy groups of silanes. These are the pH, the concentration, the catalyst used, the temperature at which the hydrolysis takes place, the solvent used, the organofunctional group and the alkoxy-functional group. However, it has been found that it is difficult to prepare storage-stable water-based sol-gel systems because ^- OH catalysis leads to rapid gelation and thus to a crosslinked system, whereas H ⁺ catalysis leads to slow gelation and linear System leads.

Of the The present invention is based on the object, in a sol-gel system greater flexibility in formulation of the inorganic coating system, the sol-gel systems especially stable on storage, water-based and solvent-free should be.

Summary of the invention.

The object is achieved for a modular VOC-free, water-based sol-gel system having at least one predeterminable property, characterized in that at least four for storage with each other matched storage stable, water-based, solvent-free, inorganic, organic or organometallic compounds as components for producing a Contain multi-component sol-gel system, of which at least one is a basic component. For a method for producing an application-specific sol-gel system from at least two components, the object is achieved by the following steps: detecting the predetermined application of the sol-gel system, comparing the predetermined application with predetermined data, selecting components from the predetermined ones Data, selecting the number of components from the predetermined data, selecting the proportions of the at least two components based on the predetermined data, providing the components separately according to the predetermined selections. For a method of adjusting the properties of a sol-gel system based on the modular system, the object is achieved by the following steps solves: specifying at least one property of the sol-gel system to be prepared, selecting components of the sol-gel system from predetermined data according to quantity, number and type of components of the modular system, wherein a correlation is performed with the predetermined property. Further developments of the invention are defined in the dependent claims.

Detailed description of the invention:

Thereby discloses a method for making an application-specific sol-gel system created in the possible applications of the sol-gel system can be stored in a memory unit. at In a specific application, a user can be saved to them Access applications. He first captures what application is required in the specific application and gives this in front. Subsequently, a comparison of the desired Application made with predetermined data. In a comparator unit will be the desired application with stored data Regarding applications. The step of capturing the Application may include the step of detecting one in the application the sol-gel system achievable effect and / or one in the application include solubility of the sol-gel system, so too this data with the stored corresponding data from the comparator unit be compared. To select the application and / or effect and / or the degree of effectiveness, a selection device may be provided be, so that a selection of predetermined data in this way is simply possible.

Of the Step of detecting the application may further include the step of Detecting the type and / or material of using the sol-gel system too covered surface, wherein the surface in particular of glass, metal, in particular aluminum, steel, stainless steel, galvanized steel, a mineral substance, a polar plastic, a renewable raw material, especially wood, one on a renewable Raw material based material, in particular textile material, paper, Glass and other pre-treated materials.

to Selection of the required components is advantageous at least a selection unit for selecting those in the storage unit stored components provided. Furthermore, it is advantageous at least a selection unit for selecting the number of selected ones Components and / or for selecting the proportions of provided selected components, wherein the selection units may be provided separately from each other or as one Unit. The number is adapted to the respective application Components that are added to the base component, determined, as well as the proportions of the mixture of Basic component with the at least one further component. about at least one output unit can finally the selected component data is output.

Advantageous are combinable with each other components, in particular by Set markers, stored in the memory unit. Thereby the selection unit can only be easily combined with each other Access components.

The Components can consist of one or more substances. The components may have different properties in order to to realize the desired application. In particular, can at least one component for adjusting the concentration and / or at least one acidity adjusting component and / or at least one alkalinity adjusting component and / or at least one component for adjusting the hydrophobicity and / or at least one component for adjusting the oleophobicity and / or at least one component for adjusting the hydrophilicity be provided. This can cover a wide variety of applications. For example, in the application of coatings on steel the optimization of the pH by providing at least one component the sol-gel system in the form of a neutralizing agent, wherein For steel, the use of neutral or slightly basic Particularly suitable formulations. A hydrophobizing component is advantageously used when the coating in places a substrate is applied, the strong UV radiation or are exposed to the weather. In particular, by introducing functional organic residues in the sol-gel system, over Si-C bonds can be bonded directly to the silicon atom a lowering of the curing temperature, flexibility, Surface hydrophobicity and oleophobicity can be achieved. In Depending on the particular application the individual components in different amounts of the basic component be added to the desired effect or the desired Property of the coating.

The Components can also be in different concentrations can be used, the selection unit also selects this suitably. In particular, concentrations of 1 to 99% by weight are used, preferably 10 to 90 wt .-%, particularly preferably 15 to 50 wt .-%.

The pH can also be selected by the selection unit. Here are in particular re adjusted pH values between 4 and 10 of the sol-gel system.

The by the method or by means of the device produced multi-component sol-gel system is subsequently used to prepare a ready-to-use composition used.

When Applications can be in the storage unit, for example the treatment of fillers, the use of the sol-gel system as a binder or as a primer or other applications be specified.

The Individual steps of the procedure can be automatic, in particular computer-aided, or possibly semi-automatic or even be done manually.

The modular sol-gel system advantageously consists of different multifunctional sol-gel systems, so that coatings, in particular inorganic coatings, can be provided with application or customer-specific properties. The modular sol-gel system comprises in particular a base component, a component as a pH additive, a component as an oleophobicizing component and a component as a hydrophobing component. The modular sol-gel system advantageously contains a base sol-gel binder as a base component. The base component is advantageously a below a predetermined temperature-curing binder for sol-gel or hybrid coatings. Preferably, the base component is acidified, water-based, and substantially solvent-free, but dilutable with water and / or a polar solvent. It may contain hydrolyzed epoxy and metal acid ester functionalities and SiO ₂ nanoparticles. It preferably has a particle size distribution of at least one solid component between 40 and 400 nm. The base component is preferably obtained from hydrolyzed and condensed silanes and inorganic filler nanoparticles. During a specific manufacturing process, solvent constituents are advantageously removed to form a water-based VOC-free sol-gel system. The base component can be an epoxy silane-based aqueous binder system with inorganic particles, as offered by the company Evonik Degussa GmbH under the name Dynasylan ^® SIVO 110th The binder is preferably a thermosetting binder having a curing temperature of about 200 ° C. As a result, a high hardness of the coating on a substrate to be coated is already ensured by the base component.

Of the Base component can be more than one more component be added. As a selection unit you can also here a selection of such a further component or an additive make. In particular, it is possible to dilutable with water Binders and / or auxiliaries, eg. B. to add leveling aids. A control unit may check for the selection of the additional component on incompatibilities with other selected Make components. With some additions could otherwise precipitations occur. The pH of the binder the basic component can be prepared by adding an acid or base For example, be set in the range of 4 to 9. Also Here is advantageously a check by the control unit, to what extent a compatibility with the other component (s) selected, otherwise it will contribute to flocculation or gelation unsuitable additives can come. Suitable as an acid additive For example, phosphoric acid. For neutralization and for adjusting basic pH values is suitable for. B. a special selected amine component. The accessories will Part of the modular sol-gel system. In particular, the neutralization additive allows the provision of a storage stable, neutral to slightly basic formulation.

The resulting sol-gel system has a very good adhesion on a substrate on which it is applied as a coating, on, in particular for subsequent coatings, the be applied over it. Furthermore, it can be a barrier effect have and improved over water and chlorides thereby the corrosion properties. The system may further include a good resistance to chemical Have attacks, be very temperature stable and is preferably in a small film thickness of in particular less than 5 microns applied to a substrate. In particular, the stabilized sol has a monomodal particle distribution, with an average particle size of about 80 nm.

The sol-gel system is usually applied by dip or spray coating. The generated sol-gel modular system can also be doctored onto the surface to be coated. With the modular sol-gel system according to the invention, dry film thicknesses of 0.2 to 5 μm can be produced, with 4 μm wet film thickness corresponding to about 1 μm dry film thickness. In principle, other layer thicknesses are possible, and these can also be specified application-specific and taken into account by the evaluation unit. The application amount is about 5 g / m ² for smooth substrates. If the sol is applied by spray or spray application, it is usually diluted with water beforehand. This is followed by curing at temperatures between 150 and 220 ° C. Dry film thicknesses can be, for example, 0.5 to 10 μm. Compared to conventional organic coatings, sol-gel coatings have a particular hardness and abrasion resistance, a temperature resistance and a solvent and acid resistance even at low layer thickness. Due to the high proportion of reactive silanol functions, a chemical bond to substrate surfaces and a high crosslink density is achieved by forming two- and three-dimensional siloxane networks. The functionalized SiO ₂ nanoparticles form a tightly packed structure during the curing process and are reactively incorporated into the siloxane network. This results in a desired high hardness and very good abrasion resistance, caused by the binder of the base component. In spite of the low achievable layer thickness, a high degree of flexibility of the sol-gel layer or the coating resulting therefrom after curing is additionally achieved.

The Sol-gel system can in particular for the pretreatment of a substrate with a topmost layer of another material, e.g. B. off Polyester can be used. Furthermore, those from the sol-gel system created coating as a primer layer under further coatings used, their adhesion to the surface of a substrate should be improved. Another application is the top one Coating on metals or ceramics.

An example of a base component may have a density at 20 ° C of about 1.14 g / cm ³ DIN 51757 , a viscosity at 20 ° C of about 7 mPa s after DIN 53015 , a flashpoint of more than 95 ° C after EN 22719 , a boiling point of about 96 ° C according to ASTM D-1120, a pH of about 4.3 after DIN 19268 and have a solids content of about 35% (3 g / 2 h at 105 ° C). The base component is therefore low viscosity. It is liquid and opaque and dilutable with water and polar solvents. After curing, the base component preferably has a high hardness of in particular up to 5 H pencil hardness, good abrasion resistance, boiling water resistance, adhesion to a wide variety of substrates and can serve as adhesion promoter for coatings, has a good flexibility of 2 mm in the mandrel bending test DIN EN ISO 1519 , Furthermore, a low dry film thickness of less than 2 microns, a temperature resistance up to 220 ° C and a very good solvent resistance of the coating created can be achieved. The Fischerscope HC 1000 microhardness can be 380 N / mm ² at a depth of 0.15 μm at a film thickness of 7 to 10 μm and a first cure at 20 ° C for 15 minutes and a second cure at 200 ° C for 15 minutes , decreasing to about 360 N / mm ² at increasing depth.

By using the binder of the base component is a degree of drying of 5 after DIN 53150 after 20 minutes drying time at room temperature possible. Complete cure with silanol crosslinking can be accomplished by subjecting the sol-gel coated surface to a temperature in the range of 150 ° C to 220 ° C.

The binders used for said base component can be mixed with water or with a common solvent, such as ethanol, isopropanol, butyl glycol or methoxypropanol become.

oleophobic Additions of water-based flouralkylfunctional or alkyl-functional sol-gel systems result after curing the coating compared to a pronounced beading effect Liquids. In particular, there is even one here Resistance to cooking water. A review This Kochwasserbeständigkeit is usually carried out by two hours Apply boiling water and check de Contact angle. One from a invention For example, the coating produced using a modular sol-gel system shows a very good contact angle of just under 100 °, whereas Coatings without an oleophobic additive a static contact angle towards water of only 38 °.

With regard to the silane-containing components, inter alia, the WO 2006/010388 A1 as well as the EP 1 288 245 A1 . EP 0 982 348 A1 , the DE 198 16 136 A1 and the WO 99/036359 directed. The components described herein can be used herein.

Should for the desired application, the weather resistance a corresponding coating can be improved, the selection unit select both hydrophobic and oleophobic additives. The created by the inventive method Sol-gel systems can be used for a wide variety of applications used, in particular as corrosion protection primer, as an easy-to-clean coating for outdoor or for others Applications that can be specified in each case.

For performance improvement, a hybrid system can be formed using organic co-binders with which the base component is compatible. To improve the corrosion protection on a galvanized sheet steel, for example, a special acrylate dispersion as a co-binder in the primer formulation for a previously mentioned polyester topcoat be used. For example, the output unit can output that the base component should be mixed with 30% polymer dispersion (acrylate dispersion).

A Component that the selection unit can use for selection, may be an oleophobizing aid, for example a water based Fluorosilane system, preferably a water-based fluoroalkoxysilane, be. As a main feature, by adding such a component can be achieved to the basic component, is a slight cleaning of coatings created in this way to call, as well as the use as a so-called anti-graffiti coating, since the use of this component in a coating causes that the coating can be easily removed from dirt can. For the anti-Graffitti application or creation an easy-to-clean surface, for example, a Two-component system of the basic component in the form of an inorganic Binder used with up to 50% of the other component.

The Selection unit, for example, in one of the above Base component, choose 2 to 5% of the pH adjusting component or 3 to 10% of a weather resistance improving component or 10 to 50% of a cleaning facilitating component should be added. The mentioned values can for mixtures of the basic component and more than one of the above corresponding to a certain property granting components be adjusted. For example, for an effective Graffiti protection on a concrete surface between about 90% and 100% of the oleophobicizing component.

A desired application is in the inventive Device detected, in particular input to an input unit or selected from a selection of predetermined applications. In the selection unit, at least one component is determined, which has the corresponding desired property or the presence of this property in the final sol-gel system supported. Furthermore, the selection unit determines the amount of base component to be used and component mixed should be. Likewise, the selection unit determines the number to be added to the base component further components. The information provided by the selection unit on the type of using components, their number and quantity is determined by the output unit is output. By pressing another If necessary, the user can still select whether a manual mixing of the components should be done or by the evaluation device determined values of an automatic mixing device should be forwarded. After selecting the manual or automatic Mixing this is done. It arises, for example a stabilized sol is fluoroalkyl-functional silanol group-rich Siloxanes with an average particle size of the sol particles of about 40 nm. The sol can be sprayed onto a surface be there and become a water vapor permeable and very Thin coating lead, which is almost invisible is and Graffitti spray paints from the surface can bead off.

The The present invention is further characterized by the following Examples explained in more detail, without the subject to restrict.

Examples

example 1

The modular sol-gel system according to the invention should be used as a corrosion primer for the pretreatment of sandblasted steel. With the method according to the invention it is determined that the acidic base component of the sol-gel system should be adjusted with a neutralizing agent to a pH of about 8.2. For this purpose, it is further determined that 97.5% of the base component should be mixed with 2.5% of the neutralizing agent. As the base component can Dynasylan ^® SIVO 110 and as a neutralizing agent or so-called. Basic pH regulator Dynasylan ^® SIVO 111 can be used, both from the Evonik Degussa GmbH. The evaluation device according to the invention can also take into account in the evaluation process, in which form an application should take place, for example by dipping. In this case, the device can also specify the time for which the coated substrates are to be immersed and the temperature at which this should take place, for example, the substrate to be coated should remain in the immersion bath for about 2 minutes. The wet layer thickness is then about 15 microns. Subsequently, the substrate should be dried at a temperature of about 100 ° C for 10 minutes. The dry film thickness is about 5 μm. Subsequently, z. B. applied a powder coating with a layer thickness of about 60 microns and cured the entire system for 10 minutes at 200 ° C. A subsequent salt spray test shows that, after 500 hours of loading, there are clear differences from the comparative substrate without a primer layer. The output unit of the evaluation device outputs all data required for the production of the sol-gel system to the user, for. B. electronically or in writing.

Example 2

The modular sol-gel system according to the invention should be provided in the further example as an easy-to-clean coating on stainless steel. The evaluation unit determines that a formulation consisting of 50% of the basic component of the modular sol-gel system and 49.8% of an oleophobic component and 0.2% of a flow control agent should be mixed. As a basic component in turn is Dynasylan ^® SIVO 110 and as Olephobisierungskomponente Dynasylan ^® SIVO 112, both from Evonik Degussa GmbH. The mixture is subsequently knife-coated onto a stainless steel sheet with a wet layer thickness of 4 μm. The coating dries within 10 minutes at room temperature and is cured for a further 15 minutes at a temperature of 200 ° C. These values are also provided by the evaluation device. The comparison of the corresponding coated stainless steel sheet with an uncoated stainless steel sheet shows up when applying a fingerprint. After cleaning the uncoated stainless steel sheet with a dry cloth, the fingerprint remains visible. On the other hand, in the case of the modular sol-gel system coated stainless steel sheet, a likewise applied fingerprint can be completely removed by wiping with a dry cloth.

Example 3

The modular sol-gel system according to the invention should be provided in this example as a weather-resistant coating on aluminum. The evaluation unit determines that a formulation consisting of 85% basic component of the modular sol-gel system and 15% of a hydrophobizing component should be mixed. As a basic component in turn is Dynasylan ^® SIVO 110 and as hydrophobizing component Dynasylan ^® SIVO 113, both from Evonik Degussa GmbH. The mixture is subsequently applied to an aluminum sheet with one. The coating dries and is cured. The respective layer thicknesses and drying or hardening times are determined by the evaluation device and made available to the user. The comparison of the correspondingly coated aluminum sheet with an uncoated aluminum sheet shows after a 1000 h QUVA weathering a significant difference in the surfaces of the two sheets. The aluminum sheet coated with the modular sol-gel system does not show a damaged surface, whereas the uncoated aluminum sheet has significant surface damage in the weathered area.

Next the embodiments of Evaluation devices, methods for producing an application-specific Sol-gel system of at least two components or setting the Properties of a sol-gel system can still be numerous more are created, each with a desired application or property of the sol-gel system and a selection of components that add to a base component whose quantity and number are made, in correlation with the given application or the properties to be achieved.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 675128 B1 [0004]
• - EP 953591 B1 [0004]
• - EP 1031593 B1 [0004]
• - EP 716127 B1 [0004]
• - EP 716128 B1 [0004]
• WO 2006/010388 A1 [0027]
• EP 1288245 A1 [0027]
• EP 0982348 A1 [0027]
• DE 19816136 A1 [0027]
• WO 99/036359 [0027]

Cited non-patent literature

• - DIN 51757 [0023]
• - DIN 53015 [0023]
• - EN 22719 [0023]
• - DIN 19268 [0023]
• - DIN EN ISO 1519 [0023]
• - DIN 53150 [0024]

Claims (40)

Modular VOC-free, water-based sol-gel system with at least one predeterminable property, containing at least four storage-stable, mutually compatible, water-based, solvent-free, inorganic, organic or organometallic compounds as components for manufacturing a multi-component sol-gel system, of which at least one a basic component is. Modular sol-gel system according to claim 1, characterized in that the basic component is one of a predefinable Temperature-curing binder for sol-gel or hybrid coatings. Modular sol-gel system according to claim 1 or 2, characterized in that the base component with water and / or a polar solvent dilutable. Modular sol-gel system according to claim 1, 2 or 3, characterized in that the base component contains hydrolyzed epoxy and Metallallsäureester functionalities and SiO ₂ nanoparticles. Modular sol-gel system according to one of the preceding Claims, characterized in that the base component a particle size distribution of at least one Solid component between 40 and 400 nm. Modular sol-gel system according to one of the preceding Claims, characterized in that the base component acidified, water-based and essentially solvent-free is. Modular sol-gel system according to one of the preceding Claims, characterized in that at least one Component of the sol-gel system is a neutralizing agent. Modular sol-gel system according to claim 7, characterized characterized in that the neutralizing agent is a corrosion protection primer is. Modular sol-gel system according to one of the preceding Claims, characterized in that at least one Single component of the sol-gel system a hydrophobization or Oleophobicating agents for providing hydro- or oleophobic surface properties a substrate coated therewith. Modular sol-gel system according to one of the preceding Claims, characterized in that the sol-gel system is thermosetting. Modular system according to claim 1 or 2, characterized characterized in that at least one component is an organofunctional reactive or non-reactive hydrolyzed silane and / or siloxane contains in neutral or ionic form. Coating, manufacturable using the modular Sol-gel system according to one of the preceding claims, characterized in that the coating scratch resistant and / or Corrosion resistant and / or easy to clean and / or UV resistant and / or solvent resistant and / or temperature resistant is. Coating according to claim 11, characterized in that that the coating spread of organic applied thereto or polymeric coatings. Process for the preparation of an application-specific Sol-gel system consisting of at least two components with the following steps: - To capture the prescribed application of the sol-gel system, - To compare the given application with predetermined data, - Select components from the predetermined data, - Select the number of components from the predetermined data, - Select the proportions of the at least two components based the predetermined data, - separate provision of the components according to the predetermined selections. Method according to claim 14, characterized in that that the step of detecting the application is the step of detecting a recoverable in the application of the sol-gel system effect. Method according to claim 14 or 15, characterized that the step of detecting the application is the step of detecting a degree of effectiveness achievable in the application of the sol-gel system includes. Method according to one of claims 14 to 16, characterized in that the step of detecting the application the step of detecting the type and / or material of the comprising the sol-gel system surface. A method according to claim 17, characterized in that the surface of glass, metal, a mineral substance, a polar plastic, a renewable raw material, in particular wood, based on a renewable raw material material, in particular textile material, Paper exists. Method according to one of claims 14 to 18, characterized in that at least one detection unit for Detecting the given application of the sol-gel system provided is. Method according to claim 19, characterized in that the detection unit has a selector for selecting predefinable applications and / or effects and / or efficiencies includes. Method according to one of claims 14 to 20, characterized in that at least one comparator unit for Compare the application with stored in a data storage unit Data is provided. Method according to one of claims 14 to 21, characterized in that at least one selection unit for Selecting the components stored in the storage unit is provided. Method according to one of claims 14 to 22, characterized characterized in that at least one selection unit for selecting the number of selected components and / or for selecting the Quantity ratios of the selected components provided is. Method according to one of claims 14 to 23, characterized in that at least one output unit for outputting the selected component data is provided. Method according to one of claims 14 to 26, characterized in that components which can be combined with one another characterized, in particular by setting markers, in the Memory unit are stored. Method for adjusting the properties of a Sol-gel system, based on the modular system according to one of the Claims 1 to 10, with the following steps: - Specify at least one property of the sol-gel system to be prepared, - Select of components of the sol-gel system from predetermined data Quantity, number and type of components of the modular system, where performed a correlation with the given property becomes. Method according to claim 26, characterized in that that prescribing the property of the sol-gel system to be produced prescribing an effect to be achieved and / or an application of the sol-gel system and / or the degree of effectiveness of the sol-gel system includes. Method according to one of claims 14 to 27, characterized in that the components consist of one or more Substances exist. Method according to one of claims 14 to 28, thereby marked that at least one component for setting the concentration and / or at least one component for setting acidity and / or at least one adjusting component alkalinity and / or at least one component for Adjusting the hydrophobicity and / or at least one component for Adjusting the oleophobicity and / or at least one component for adjusting the hydrophilicity is provided. Method according to claim 29, characterized that the components have a concentration of 1 to 99% by weight be used. Method according to claim 30, characterized that the components have a concentration of 10 to 90% by weight be used. Method according to claim 31, characterized in that that the components have a concentration of 15 to 50% by weight be used. Method according to one of claims 29 to 32, characterized in that the pH is between 4 and 10 of the sol-gel system is set. Use of a multi-component sol-gel system according to any one of claims 14 to 25 for the preparation of a ready to use composition. Evaluation device for carrying out the method according to one of claims 14 to 25, wherein at least one Detection unit for detecting the predetermined application of the sol-gel system, at least one comparator unit for comparing the application with data stored in a data storage unit, at least a selection unit for selecting those in the storage unit stored components, at least one selection unit for Select the number of selected components and / or Selecting the proportions of the selected components and at least one output unit for outputting the selected one Component data are provided. Apparatus according to claim 35, characterized in that the detection unit is a selection device for selecting presettable applications and / or effects and / or effective includes degrees. Device according to Claim 35 or 36, characterized that at least one control unit in a selection of at least an additional component to check for incompatibilities the additional component provided with further selected components is. Use of the modular sol-gel system after one of claims 1 to 33 for the treatment of fillers. Use of the modular sol-gel system after one of claims 1 to 33 as a binder. Use of the hydrophobic modular sol-gel system according to one of claims 1 to 33 as adhesion promoter.