TW201020296A - Preparation of the composite coatings and its products - Google Patents

Abstract

The present invention provides a method for forming a compound paint and a product using the same method. The method includes steps of: putting inorganic metal salt of non-silicon into dissolvent and mixing the resulting solution; putting inorganic metal salt of silicon into the solution and mixing the solution; adding water and acid/halogen dissolvent into the solution, and mixing the solution for generating hydrolyze reaction and condensation reaction; laying the solution for 24 hours for obtaining the steady compound paint. The compound paint can quickly form a compound coating of high intensity and stability under normal temperature heating or less than 100 DEG C heating.

Description

201020296 VI. Description of the Invention: [Technical Field] The present invention relates to a technique for composite coatings, and particularly to a method for preparing a composite coating and a product thereof. [Prior Art] obtained, sol-gel 沄

The method has the advantages of good chemical uniformity, simple process, convenient operation, low cost, simultaneous transmittance and suitable for various substrates, and can be applied to large and complex substrates, so it is widely used in the industry. However, in the process of its preparation, it is often necessary to give a certain high temperature heating to facilitate the final film formation. Composite films made from composite coatings usually have the advantage of two or more ordinary films. The common inorganic thin ruthenium consists of two inorganic metal oxides, such as oxidized, dioxic, and titanium dioxide. Dioxane = and Al2O2, etc., the advantage of this film is that it can include more than two kinds of complex elements. The composition of the compound has different functionalities, such as Huachin and sulphur dioxide 々+ for humans and humans. The composite film made of the photocatalyst of a milk film has the effect of titanium dioxide. The AM also has the anti-scratch and abrasion resistance of the film (four) composite (four) has the oxygen effect: due to oxidation (four) - work II two! (1) In the film-forming process, the composite coating is subjected to high-temperature addition. [Invention] The film produced by the filming process has a low strength. The preparation of the g β & composite coating of the present invention has the defects of the prior art to provide a method and a product thereof, and the product prepared by the method can be rapidly formed into a film without heating at a high temperature of 201020296 and the film is prepared. Good strength. In order to achieve the above object, the preparation method of the composite coating provided by the present invention comprises the following steps: (1) First, a non-steroidal inorganic metal salt having a certain capacity as a precursor is added to an alcohol solvent and stirred for 30 to 60 minutes; 2) Next, a certain amount of an inert inorganic metal salt is added to an alcohol solvent having a non-indole inorganic metal salt and stirred for 30 to 60 minutes; (3) after mixing, mixed in the above step (2) To the solution, water and an acid solution or an alkali solution having a concentration of 10% to 40% as a catalyst are added, and the mixed mixture is stirred for 4 to 8 hours to sufficiently carry out a hydrolysis condensation reaction; (4) Finally, the above The mixed solution was allowed to stand at room temperature or under heating conditions of less than 100 ° C for 24 hours to finally obtain a stable composite coating. As described above, the coating product prepared by the method for preparing the composite coating of the present invention can be dried after being applied to the surface of the substrate at room temperature or under heating conditions of less than 10 ° C for 30 to 60 minutes. A composite film having high strength and high stability can be formed on the surface of the substrate. [Embodiment] Q is a detailed description of the technical contents of the present invention and the objects and effects achieved thereby, which will be described in detail below with reference to the embodiments. The preparation method of the composite coating of the invention comprises the following steps: (1) adding a non-indole inorganic metal salt as a precursor to an alcohol solvent in a certain volume and stirring for 30-60 minutes; wherein an appropriate amount of the alcohol solvent may be One or two of ethanol and isopropanol; the non-indole inorganic metal salt may be selected from one or more groups of the following groups of inorganic metal salts, and one or more of each group of inorganic metal salts are selected: (a) Ti(OC2H5)4, Ti(OCH(CH3)2)4; 201020296 (b) Al(OC3H7)3, Al[OCH(CH3)C2H5]3; (c) Zr(OC2H5)4, Zr(OCH2CH2CH3)4 Zr[OC(CH3)3]4; (d) Zn(CH3C00)2-2H20. (2) Next, in the solution mixed in the step (1), a bismuth-based inorganic metal salt having a certain capacity as a precursor is added and stirred for 30 to 60 minutes; wherein the dream inorganic metal salt may be Si(OC2H5)4. Any one or more of C2H5Si(OC2H5)3, C2H5Si(OCH3)3, CH3Si(OC2H5)3, H2C=CHSi(OC2H5)3, H2C=CHSi(OCH3)3, and CH3Si(OCH3)3. (3) After the enthalpy, add water and an acid solution or an alkali solution as a catalyst with a concentration of 10% to 40% in the solution mixed in the step (2), and mix the mixture for 4 to 8 hours. The hydrolysis reaction is sufficiently carried out; wherein the water may be deionized water; the acid solution is a mixture of one or more of a hydrochloric acid solution, an acetic acid solution and a nitric acid solution; and the alkali solution may be an ammonium hydroxide solution. (4) Finally, it was allowed to stand at room temperature for 24 hours to finally obtain a stable composite coating. The following is a detailed description of the preparation method of the SiO 2 /Al 2 2 composite coating and the preparation method of the SiO 2 /TiO 2 /Al 2 2 composite coating.实施 Example 1: Preparation of SiO 2 /Al 20 composite coating First, 2 ml of Al(OC3H7) 3 was added to 300 ml of ethanol solvent and stirred at room temperature for 30 minutes; then 50 ml of Si(OC2H5) 4, 50 ml was added. C2H5Si(OC2H5)3, 50 ml H2C=CHSi(OCH3)3 and stirred at room temperature for 30 minutes; add 1 ml of 10% hydrochloric acid and 15 ml of deionized water' and continue stirring for 4 hours; The mixture was allowed to stand at room temperature for 24 hours to form a stable SiO 2 /Al 2 2 composite coating. The SiO 2 /Al 2 2 composite coating was applied to the surface of the substrate, and after 30 minutes, it was naturally dried to form a SiO 2 /Al 2 2 composite film having high strength and high stability on the surface of the substrate. Example 2: Preparation of SiO 2 /Ti02 / Al 203 composite coating 5 201020296 First, 1.5 ml of Al[OCH(CH3)C2H5]3 and 1.5 ml of Ti(OCH(CH3)2)4 were added to 300 ml of ethanol solvent and placed in a chamber. Stir for 3 minutes at room temperature; secondly, add 50 ml of Si(OC2H5)4, 50 ml of H2C=CHSi(OC2H5)3 and 50 ml of H2C=CHSi(OCH3)3 and stir at room temperature for 30 minutes; 1 〇ml of 1% by weight hydrochloric acid and 15 ml of deionized water, and stirring was continued for 4 hours, then the stirring was stopped; finally, standing at room temperature for 24 hours, a stable SiOz/TiOz/AIzO3 composite coating was obtained. This SKVTKVAbO3 composite coating is applied to the surface of the substrate and heated at 5 °c for 3 minutes to form a high-strength, high-stability ® Si02/Ti02/Al203 composite film on the surface of the substrate. As described above, the coating product obtained by the preparation method of the composite coating of the present invention can be dried after being applied to the surface of the substrate at room temperature or under a heating condition of less than 30 to 60 minutes. Forming a composite film with good strength and high stability.

Claims (1)

201020296 VII. Patent application scope: The preparation method of L composite coating includes the following steps: (1) First, the non-antimony inorganic metal salt as a precursor is added to the alcohol solvent in a certain volume, and stirred 30~60 (2) Next, the mixed solution in the above step is further added to a certain volume of the hydrazine-based inorganic metal salt as a precursor, and stirred for 3 〇 to 6 〇 minutes; (3) 嗣 after the above (丨), (2 The mixed solution mixed in the step is added with water and an acid solution or an alkali solution as a catalyst at a concentration of 1% to 4% by weight, and the mixture is stirred for 4 to 8 hours to sufficiently carry out a hydrolysis condensation reaction; (4) Finally, at room temperature or below 100. The method for preparing a composite coating according to the above-mentioned claim 1, wherein the bismuth-based inorganic metal salt is Si(OC2H5)4, which is allowed to stand for 24 hours under heating conditions. Any one or more of C2H5Si(OC2H5)3, C2H5Si(〇CH3)3, CH3Si(OC2H5)3, H2C=CHSi(OC2H5)3, H2C=CHSi(OCH3)3, CH3Si(OCH3)3. The method for producing a composite coating according to claim 1, wherein the non-indole inorganic metal salt is selected from the group consisting of one or more of the following groups of inorganic metal salts, and each group of inorganic metal salts is selected. Select one or more: (1) Ti(OC2H5)4, Ti(OCH(CH3)2)4; (2) Al(OC3H7)3, Al[OCH(CH3)C2H5]3; (3) Zr(OC2H5) 4. Zr(OCH2CH2CH3)4, Zr[OC(CH3)3]4; (4) Zn(CH3C00)2.2H20. 4. The preparation method of the composite coating according to Item 1, wherein the alcohol The solvent-like solvent is one or both of ethanol and isopropyl alcohol. 5. The method for preparing a composite coating according to claim 1, wherein the acid solution is one of a hydrochloric acid solution, an acetic acid solution, and a nitric acid solution. A method of preparing a composite coating according to claim 1, wherein the alkali solution is an ammonium hydroxide solution. 7. The composite according to claim 1 A method of preparing a coating material, wherein the ice is deionized water. V) 8. A composite coating product produced by the method for producing a composite coating according to any one of claims 1 to 8. 201020296 IV. Designated representative map: (1) The representative representative of the case is: None (2) The symbol of the symbol of the representative figure is simple: None 5. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: