TH11035Y - The coating film has hydrophobic properties, is glossy, and resistant to chemical solvents and the coating preparation process. - Google Patents

Abstract

DC60 (27/03/2015) This invention relates to films and the process of forming films with hydrophobic properties, gloss, transparency, and resistance to chemical solvents. Such films, as described in this invention, consist of a substrate, a film layer of gamma-glycidoxypropyltrimethoxysilane, a film layer of a colloidal mixture of polyhydrogen siloxane and trichloro(1H,1H,2H,2H perfluorooctyl)silane, and solvents: water, acetone, and 2-propanol. The film preparation process includes: coating solution preparation, glass surface preparation, and glass coating film preparation. (Revised 27/03/2015) This invention relates to films and the process of forming films with hydrophobic properties, gloss, transparency, and resistance to chemical solvents. Such films, as described in this invention, consist of a substrate, a film layer of gamma-glycidoxypropyltrimethoxysilane, and a film layer of a colloidal mixture... This invention concerns a film and a film-forming process that exhibits hydrophobic properties, gloss, transparency, and resistance to chemical solvents. The film, as described in this invention, consists of a substrate, a film layer of gamma-glycycoxipropyltrimethoxysilane, and a film layer of a colloidal mixture of polyhydrogen siloxane and trichloro(1H,1H,2H,2H perfluorooctyl) silane, with solvents of water, acetone, and 2-propanol. The film preparation process includes: coating solution preparation, glass surface preparation, and glass coating film preparation.

Claims (3)

Revised 27/03/58 1. A hydrophobic, glossy, transparent, and solvent-resistant coating film consisting of: - A substrate - A film layer (5) of gamma glycidoxypropyl trimethoxysilane (2) on the substrate, which is a layer that enhances the adhesion of the film to the substrate - A film layer (6) of a mixture of colloidal polyhydrogen siloxane (3) with trichloro(1H, 1H, 2H, 2H perfluorooctyl) silane (4) on the surface of the gamma glycidoxypropyl trimethoxysilane film. Propyltrimethoxysilane 2. The film preparation process according to claim 1 consists of the following steps: a. Preparation of the coating solution - Dissolve sodium lauryl sulfate in water, then add polyhydrogen siloxane. Stir the mixture using an ultrasonic mixer at 25-40°C for 100-120 minutes until the mixture is homogeneous. - Dissolve gamma glycidoxypropyltrimethoxysilane in propanol solvent. Stir the mixture until homogeneous at 25-40°C for 10-15 minutes. b. Preparation of the glass surface - Clean the glass surface with a solution of sulfuric acid (H2SO4) and hydrogen peroxide (H2O2) and heat it to 70-100°C. Then wash it with a solvent consisting of water, acetone, and 2-propanol. Finally, dry the glass in an oven at 50-110°C. c. Preparation of the glass coating film. This consists of the following steps: - The glass, which has been cleaned from the surface in step B, is first coated with a film of gammaglycidoxypropyltrimethoxysilane three times. - The glass is then coated with a mixture of colloidal polyhydrogen siloxane dissolved in an aqueous sodium lauryl sulfate solution and a trichloro(1H, 1H, 2H, 2H perfluorooctyl) silane solution, which is applied three times to the substrate surface. 3. The film preparation process according to claim 2, where the sodium lauryl sulfate is present in an amount of 0.05-4 percent by weight. --------------------------------------------------------- 1. A hydrophobic, glossy, transparent, and solvent-resistant coating film consisting of: - a substrate (1) - a film layer (5) of gamma-glycydoxypropyltrimethoxysilane (2) on the substrate, which is an additional layer that enhances the adhesion of the film to the substrate - a film layer (6) of a colloidal polyhydrogen siloxane (3) with trichloro(1H,1H,2H,2H perfluorooctyl)silane (4) on the surface of the gamma-glycydoxypropyltrimethoxysilane film layer. 2. The process for preparing the coating film according to claim 1 consists of the following steps: a. Preparation of the coating solution - Dissolve sodium lauryl sulfate in water, then add polyhydrogen siloxane. Stir the mixture using an ultrasonic mixer at 25-40°C for 100-120 minutes until the mixture is homogeneous. - Dissolve gamma glycidoxypropyl trimethoxysilane in propanol solvent. Stir the mixture until homogeneous at 25-40°C for 10-15 minutes. b. Preparation of the glass surface - Clean the glass surface with a solution of sulfuric acid (H2SO4) and hydrogen peroxide (H2O2) and heat it to 70-100°C. Afterward, wash it with a solvent consisting of water, acetone, and 2-propanol. Then, dry the glass in an oven at 50-110°C. c. Preparation of the glass coating film. This process consists of the following steps: - The glass, which has been cleaned in step B, is first coated with a film of gammaglycidoxypropyltrimethoxysilane three times. - The glass is then coated with a mixture of colloidal polyhydrogen siloxane dissolved in aqueous sodium lauric sulfate solution and a solution of trichloro(1H,1H,2H,2H perfluorooctyl) silane, which is applied to the substrate surface three times. 3. Film preparation process according to claim 2 where the sodium lauryl sulfate is present in a quantity of 0.05-4 percent by weight.