Anti-oxidization film and preparation method
An anti-oxidation and thin-film technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the loss of silver protection, the unsatisfactory weather resistance of anti-silver discoloration agent, and the aging degradation of protective film. and other problems, to achieve the effect of improving antioxidant capacity, strong antioxidant capacity and good film-forming performance
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Embodiment 1
[0026] Inorganic nano film of the present invention, SiO 2 , B 2 o 3 , ZnO and K 2 The weight ratio of O is 45:10:15:30.
[0027] Its specific preparation process includes the following steps:
[0028] 1) Preparation of precursor solution: weigh 20g TESO (tetraethyl orthosilicate), 200g H 2 O and 40g polyethylene glycol, after mixing uniformly in a 500ml beaker, adjust PH=9 with ammonia water, stir at room temperature for 12h, slowly add 0.97g (CH 3 O) 3 B, 0.57g Na 2 [Zn(OH) 4 ] and 1 g K 2 O, after the stirring is completed, a transparent sol-like solution is obtained, which is the precursor.
[0029] 2) Preparation of anti-oxidation silver: immerse pure silver in the precursor solution, coat with a pull coater, dry naturally, and perform heat treatment according to the following heating procedure:
[0030]
[0031] After the heat treatment, the anti-oxidation silver is obtained. The anti-oxidation silver will not be corroded and discolored in the atmosphere, sw...
Embodiment 2
[0033] Inorganic nano film of the present invention, SiO 2 , B 2 o 3 , ZnO and K 2 The weight ratio of O is 50:10:10:30.
[0034] Its specific preparation process includes the following steps:
[0035] 1) Preparation of precursor solution: weigh 100g TESO, 1000g H 2 O and 200g polyethylene glycol, after mixing uniformly in a 2500ml beaker, adjust PH=9 with ammonia water, stir at room temperature for 12h, slowly add 4.5g (CH 3 O) 3 B, 1.74gNa 2 [Zn(OH) 4 ] and 5g K 2 O, after the stirring is completed, a transparent sol-like solution is obtained, which is the precursor.
[0036] 2) Preparation of anti-oxidation silver: immerse pure silver in the precursor solution, coat with a pull coater, dry naturally, and perform heat treatment according to the following heating procedure:
[0037]
[0038] After the heat treatment, the anti-oxidation silver is obtained. The anti-oxidation silver will not be corroded and discolored in the atmosphere, sweat, hydrogen sulfide atmo...
Embodiment 3
[0040] Inorganic nano film of the present invention, SiO 2 , B 2 o 3 , ZnO and K 2 The weight ratio of O is 60:5:15:20.
[0041] Its specific preparation process includes the following steps:
[0042] 1) Preparation of precursor solution: weigh 200g TESO, 2000g H 2 O and 400g polyethylene glycol, after mixing uniformly in a 5000ml beaker, adjust PH=9 with ammonia water, stir at room temperature for 12h, slowly add 3.7g (CH 3 O) 3 B, 4.2gNa 2 [Zn(OH) 4 ] and 4.9 g K 2 O, after the stirring is completed, a transparent sol-like solution is obtained, which is the precursor.
[0043] 2) Preparation of anti-oxidation silver: immerse pure silver in the precursor solution, coat with a pull coater, dry naturally, and perform heat treatment according to the following heating procedure:
[0044]
[0045] After the heat treatment, the anti-oxidation silver is obtained. The anti-oxidation silver will not be corroded and discolored in the atmosphere, sweat, hydrogen sulfide atm...
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