Method for preparing thermal insulation antifog membrane for automotive glass
A technology of automobile glass and anti-fog film, which is applied in the field of preparation of heat-insulating anti-fog film for automobile glass, which can solve the problems of poor durability of anti-fog function and incomplete anti-fog effect, and achieve the effect of eliminating fog generation
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Embodiment 1
[0022] 1. Preparation of thermal insulation resin;
[0023] Add 20g 1-propylene glycol methyl ether acetate-2 and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 5g 10nm mesoporous silica and 0.2g polyether alkyl siloxane leveling agent, Stir at room temperature for 1 hour to obtain thermal insulation resin.
[0024] 2. Preparation of anti-fog film;
[0025] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.
[0026] The surface of the clean and dry automobile glass is coated with an insulating resin system. The coating process is spraying. After the coating is completed, the surface is sprayed with a transparent nano-silver solution, and then placed at room temperature for leveling. After leveling, the glass film layer is placed on the surface. Place at 100°C for 1h.
[0027] Fogging occurred at the beginning of the film l...
Embodiment 2
[0029] 1. Preparation of thermal insulation resin;
[0030] Add 20g 1-propylene glycol methyl ether acetate-2 and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 5g 10nm mesoporous silica and 0.2g and 10g transparent nano-silver solution polyether alkyl silicon Oxane leveling agent, stirring at room temperature for 1h.
[0031] 2. Preparation of anti-fog film;
[0032] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.
[0033] Stir 1 g of N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane and 49 g of water at room temperature for 1 h, then add ethanol, and continue stirring for 10 min to obtain a coupling agent solution. The dry and clean glass surface was wiped with the prepared coupling agent solvent, and then placed at 100 °C for 1 h.
[0034] The surface of the automobile glass treated with the coupling agent solution...
Embodiment 3
[0037] 1. Preparation of thermal insulation resin;
[0038] Add 20g hydroxy acrylate A450 (Bayer) and 12g TDI aromatic isocyanate to 50g ethyl acetate, stir at room temperature for 2h, then add 7g 20nm silicon dioxide and 0.2g polyether alkyl siloxane leveling agent, stir at room temperature 1h, the heat insulating resin is obtained.
[0039] 2. Preparation of anti-fog film;
[0040] The glass surface was first degreasing with methanol, then physically polished, washed with tap water and distilled water respectively, and then dried for use.
[0041] The surface of the clean and dry automobile glass is coated with an insulating resin system. The coating process is spraying. After the coating is completed, the surface is sprayed with a transparent nano-silver solution, and then placed at room temperature for leveling. After leveling, the glass film layer is placed on the surface. Place at 100°C for 1h.
[0042] Fogging appeared at the beginning of the film layer, the fog disa...
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