A kind of hollow nano particle composite anti-fog film layer and preparation method thereof
A nanoparticle and anti-fog film technology, applied in the field of material chemistry, can solve the problems of short service life, influence on transparency, and easy volatility, and achieve superior heat insulation performance, improve anti-fog performance, and improve anti-fog effect.
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[0035] Preferred embodiment: a method for preparing an anti-fog coating solution and an anti-fog product, comprising the following steps:
[0036] (1) the sucrose aqueous solution is heated and reacted in a hydrothermal kettle, and the nano-carbon bead solution is obtained after cooling;
[0037] (2) After adding solvent, silicon dioxide precursor and ammonia solution, react at normal temperature, after the reaction is finished, suction filter to obtain nano-silica particles with carbon beads as the nucleus;
[0038] (3) After calcining the nano-silica particles with carbon spheres as the core at high temperature, pure hollow nano-silica particles can be obtained, which are weighed for later use
[0039] (4) After mixing the anti-fog coating solution with acrylate resin, polyethylene glycol, hollow silica nanoparticles and surfactant as the main components, spray, spin or immerse the coating on the coupling agent. Anti-fog coating is formed on the glass surface after treatmen...
Embodiment 1
[0048] This embodiment provides a method for preparing a hollow nanoparticle compounded polymer anti-fog coating solution for transparent glass, which includes the following steps:
[0049] Add 25mL, 0.5M sucrose solution into a hydrothermal kettle, keep it at 160°C for 4 hours, pour it directly into a 250mL beaker, add 80mL of methanol solution, 6mL of concentrated ammonia water (28%) and 3mL of ethyl orthosilicate, and stir at room temperature for 4 When it is small, the particles obtained by suction filtration are calcined in a muffle furnace at 550°C for 4 hours (maintaining a temperature increase rate of 2°C per minute), and pure hollow nano-silica particles can be obtained.
[0050] Add 2.0 g of acrylic resin and 1.7 g of polyethylene glycol PEG400 into 4 g of propylene glycol methyl ether acetate, stir to obtain a mixed solution, add 0.5 g of the previously obtained hollow nano-silica particles into it and stir evenly. Add 0.25 g of nonionic surfactant polyoxyethylene a...
Embodiment 2
[0055] This embodiment provides a method for preparing a hollow nanoparticle compounded polymer anti-fog coating solution for transparent glass, which includes the following steps:
[0056] Add 40mL, 0.5M sucrose solution into a hydrothermal kettle, keep it at 180°C for 4 hours, pour it directly into a 250mL beaker, add 80mL of methanol solution, 9mL of concentrated ammonia water (28%) and 5mL of ethyl orthosilicate, and stir at room temperature for 4 When it is small, the particles obtained by suction filtration are calcined in a muffle furnace at 550°C for 4 hours (maintaining a temperature increase rate of 2°C per minute), and pure hollow nano-silica particles can be obtained.
[0057] Add 2.0 g of acrylic resin and 1.7 g of polyethylene glycol PEG400 into 4 g of propylene glycol methyl ether acetate, stir to obtain a mixed solution, add 0.75 g of the previously obtained hollow nano-silica particles into it and stir evenly. Add 0.25 g of nonionic surfactant polyoxyethylene ...
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