Preparation method of silicon dioxide nano-array on a glass substrate
A technology of glass substrates and nano-arrays, applied in the direction of coatings, etc., can solve problems such as difficult to popularize and apply, easy to collapse, yellowing, etc., achieve broad application prospects, suppress surface reflection, and suppress anti-reflection effects
Active Publication Date: 2020-01-07
XIAMEN UNIV
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Problems solved by technology
Organic nano-column arrays have poor durability and weather resistance, are prone to cracks and yellowing, and are difficult to popularize and apply
[0005] Through the public knowledge of the invention patent (application number 200610144590.0), in principle, SiO is coated on the glass surface 2 After sol, SiO can be obtained by template imprinting method 2 nanoarrays, however, since the SiO 2 The gelation process of the sol is essentially different from the curing process of thermoplastic polymers, thermosetting polymers or UV curable polymers mentioned in the invention patent (application number 200610144590.0). 2 The sol is prone to collapse during gelation, making it difficult to prepare SiO on the glass surface by template imprinting 2 nanoarray
Method used
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Embodiment 1
[0030] 1) Mix and stir 41.9g ethanol, 17.3g tetraethyl orthosilicate and 5.8g KH560 for 10min to obtain mixed solution A; take 4.2g HNO with a volume fraction of 1% 3The solution was added to 15.8g deionized water to obtain a mixed solution B; then, the mixed solution B was added dropwise to the mixed solution A, and the reaction was stirred for 2 hours to obtain an acidic SiO 2 Sol;
[0031] 2) the acidic SiO obtained in step 1) 2 The sol was spin-coated on a clean glass substrate (30×30×3.2mm float green glass) at the parameters of 380rpm and 10s, and placed horizontally in the air for 6-8min to form SiO2 on the glass substrate. 2 coating;
[0032] 3) Select a single-pass AAO with a pore depth of 150±20nm and a pore diameter of 40±10nm as a template; in this embodiment, the single-pass porous alumina template (purchased from Shenzhen Topology Membrane Technology Co., Ltd.) has a three-layer structure , including a regular AAO porous layer (effective AAO layer), an Al base...
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Abstract
The invention discloses a preparation method of a silicon dioxide nano array on a glass substrate. AAO is used as a template, acidic SiO2 sol is used as a coating, and a SiO2 nano array can be prepared on the surface of glass. An inorganic SiO2 nano array which is arranged neatly can be prepared on the surface of the glass simply at low cost, and an anti-reflection effect is achieved; and by further surface finish, a transparent super-hydrophobic surface can be formed, and the silicon dioxide nano array on the glass substrate has latent characteristics such as self-cleaning, icing prevention,surface reflection suppressing and anti-reflection, and has wide application prospect on glass of automobiles, buildings, solar cells and the like.
Description
technical field [0001] The invention belongs to the technical field of glass surface functionalization, and in particular relates to a method for preparing a silicon dioxide nano-array on a glass substrate. Background technique [0002] The regular nanostructure of the glass surface is the basis of the functionalization of the glass surface, which can make the glass surface exhibit special functions. For example, the transparent super-hydrophobic surface obtained by the surface regular nano-array structure has broad application prospects in the glass of automobiles, buildings, solar cells, etc. Superhydrophobic surfaces require two necessary conditions: surface roughness and low surface energy. Rough surface structures are usually constructed by nanoparticles, surface pits, nanowires, nanopillars, nanocones, etc. Among them, the array of nanopillars can suppress surface reflection and enhance reflection and has attracted wide attention. Low surface energy, usually construc...
Claims
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IPC IPC(8): C03C17/23
CPCC03C17/006C03C17/23C03C2217/213C03C2217/425C03C2217/70C03C2218/11C03C2218/32
Inventor 黄悦许海波周忠华
Owner XIAMEN UNIV