Preparation method of a hydrophobic self-cleaning anti-reflection film with high hardness and super wear resistance
A technology of super wear-resistant and anti-reflection film, applied in the direction of coating, etc., can solve the problems of light transmittance decline, etc., and achieve the effect of long shelf life, convenient large-scale production, and good environmental durability
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Embodiment 1
[0029]Preparation of AlO (OH) Sol: Using anhydrous ethanol as a solvent, isopropanol aluminum (purity ≥ 98%) is a precursor, heating absolute ethanol to 80 ° C, at high speed at a high-speed mixture of 600 rpm, every part A second addition of 1 / 400 isopropanol aluminum having a molar number of molar numbers, reflux is stirred from 30 min and lifts to 90 ° C, adding concentrated nitric acid (HNO) 3 , 36%), after returning for 6 hours, cool, then sealed, indooled at room temperature, and the transparent and stable aluminum sol. Anhydrous ethanol added, isopropanol aluminum, and nitric acid molar ratio are 100: 1: 0.25, respectively.
[0030] Al-Wisker / Sio 2 Preparation of the sol: Take the prepared aluminum sol, adding methyl trionoxysilane (MTES, 96%) and oxalic acid solution (0.01 mol / L), stir for 1 h, 30 ° C by stirring at 30 ° C. 5 days. The volume ratio of Alo (OH) sol, MTES, and oxalic acid was 5: 1: 0.5.
[0031] Al-Wisker / Sio 2 Preparation of the reflection film: High ...
Embodiment 2
[0033] Preparation of AlO (OH) Sol: Using anhydrous ethanol as a solvent, isopropanol aluminum (purity ≥ 98%) is a precursor, heating absolute ethanol to 80 ° C, at high speed at a high-speed mixture of 600 rpm, every part The slow addition of 1 / 400 of the mole of about solvent in one second, wasotropopropanol aluminum, stirring for 30 min and lifting temperature to 90 ° C, adding concentrated nitric acid (HNO) 3 , 36%), after returning for 6 hours, cool, then sealed, indooled at room temperature, and the transparent and stable aluminum sol. Anhydrous ethanol added, isopropanol aluminum, and nitric acid molar ratio are 100: 1: 0.25, respectively.
[0034] Al-Wisker / Sio 2 Preparation of the sol: Take the prepared aluminum sol, adding methyl trionoxysilane (MTES, 96%) and oxalic acid solution (0.01 mol / L), stir for 1 h, 30 ° C by stirring at 30 ° C. 5 days. The volume ratio of Alo (OH) sol, MTES, and oxalic acid was 10: 1: 0.5.
[0035] Al-Wisker / Sio 2 Preparation of the refle...
Embodiment 3
[0037] Preparation of AlO (OH) Sol: Using anhydrous ethanol as a solvent, isopropanol aluminum (purity ≥ 98%) is a precursor, heating absolute ethanol to 80 ° C, at high speed at a high-speed mixture of 600 rpm, every part A second addition of 1 / 400 isopropanol aluminum having a molar number of molar numbers, reflux is stirred from 30 min and lifts to 90 ° C, adding concentrated nitric acid (HNO) 3 After 36%, after returning to flow, the seal was stored after cooling, and the chemical and stable aluminum sol were obtained at room temperature. Anhydrous ethanol added, isopropanol aluminum, and nitric acid molar ratio are 100: 1: 0.25, respectively.
[0038] Al-Wisker / Sio 2 Preparation of the sol: Take the prepared aluminum sol, adding methyl trionoxysilane (MTES, 96%) and oxalic acid solution (0.01 mol / L), stir for 1 h, 30 ° C by stirring at 30 ° C. 5 days. The volume ratio of Alo (OH) sol, MTES, and oxalic acid was 15: 1: 0.5.
[0039] Al-Wisker / Sio 2 Preparation of the refl...
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