Ferric hydroxide super-hydrophobic thin film and preparation method thereof
A technology of ferric hydroxide and hydrophobic film, which is applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of anti-icing and other problems, and achieve good film uniformity and film thickness difference Small, prolonged adhesion effect
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Embodiment 1
[0021] A ferric hydroxide hydrophobic film and a preparation method thereof, comprising the following materials: 4 mL of ferric hydroxide colloid, 4 mL of silica sol hydrolyzed by tetraethyl orthosilicate, and 2 mL of hydrophobic modification solution.
[0022] A kind of ferric hydroxide hydrophobic film and preparation method thereof, synthesize superhydrophobic film by hydrothermal method, specifically comprise the following steps:
[0023] (1) Preparation of mixed solution: Heat 60mL of deionized water to 90°C and pour it into the reaction kettle, add 4mL of tetraethylorthosilicate hydrolyzed silica sol into the reaction kettle, adjust with 0.1mol / L hydrochloric acid The pH of the solution was 3, and then 4 mL of ferric hydroxide colloid was added into the reaction kettle. The reaction kettle was placed in an oven and heated at 120°C, and reacted for 2 hours for use.
[0024] (2) Preparation of the hydrophobic modification solution of the film: mix hexadecyltrimethoxysilan...
Embodiment 2
[0029] A ferric hydroxide hydrophobic film and a preparation method thereof, comprising the following materials: 7mL of ferric hydroxide colloid, 7mL of silica sol hydrolyzed by tetraethylorthosilicate, and 2mL of hydrophobic modification solution.
[0030] A ferric hydroxide hydrophobic film and a preparation method thereof. The superhydrophobic film is synthesized by a hydrothermal method, which specifically includes the following steps: (1) Preparation of a mixed solution: heating 60mL of deionized water to 80°C and pouring it into a reaction kettle 7 mL of silica sol hydrolyzed by tetraethyl orthosilicate was added to the reaction kettle, the pH of the solution was adjusted to 3 with 0.1 mol / L hydrochloric acid, and then 7 mL of ferric hydroxide colloid was added into the reaction kettle. The reaction kettle was placed in an oven and heated to 110°C, and reacted for 2 hours for later use.
[0031] (2) Preparation of the hydrophobic modification solution of the film: mix he...
Embodiment 3
[0037] A ferric hydroxide hydrophobic film and a preparation method thereof, comprising the following materials: 6mL of ferric hydroxide colloid, 1mL of tetraethyl orthosilicate solution, and 3ml of hydrophobic modification solution.
[0038] A ferric hydroxide hydrophobic film and a preparation method thereof. The superhydrophobic film is synthesized by a hydrothermal method, which specifically includes the following steps: (2) Preparation of a mixed solution: heat 60mL of deionized water to 70°C and pour it into a reaction kettle 6mL of ferric hydroxide colloid was added to the reaction kettle, and then 1mL of tetraethyl orthosilicate solution was added to the reaction kettle. The reaction kettle was placed in an oven and heated at 100°C, and reacted for 2 hours for later use.
[0039] (2) Preparation of the hydrophobic modification solution of the film: mix hexadecyltrimethoxysilane and absolute ethanol in a volume ratio of 4:96 and set aside;
[0040] (3) Cleaning of alum...
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