Super-hydrophobic transparent glass and preparation method thereof

Abstract

The invention relates to super-hydrophobic transparent glass and a preparation method thereof, in particular to super-hydrophobic high-transparent glass prepared through ultrafast laser and a preparation method of the high-transparent glass. Discrete dotted pits are distributed in the surface of the super-hydrophobic transparent glass, and micro-nano structures are formed in the pits. According to the preparation method of the super-hydrophobic transparent glass, the discrete dotted pits are prepared in the surface of the glass through ultra-short laser pulse, each dotted pit is subjected to repeated variable-energy laser pulse treatment, the rich micro-nano structures are formed, and low-free-energy surface treatment is performed with a fluoroalkyl silane gas phase modification method. The method adopts a simple process, the dotted pit structure is accurate and adjustable, the processing process is efficient and controllable, and the repeatability is good. The obtained glass has high transparency, stable super-hydrophobic performance and controllable hydrophobicity and transparency, has the glass surface contact angle reaching 160 degrees and can realize the visible light transmittance up to 90% or above. The super-hydrophobic transparent glass has broad prospects in the field of building window glass, transportation windows, automobile rearview mirrors, water-proof mirrors, solar crystalline silicon cell surface protection and the like.

Description

technical field [0001] The invention relates to a super-hydrophobic high-transparency glass surface and a preparation method thereof, in particular to a super-hydrophobic high-transparency glass prepared by using an ultrafast laser and a preparation method thereof, and belongs to the technical field of super-hydrophobic transparent material preparation. Background technique [0002] The existing superhydrophobic glass is generally coated with a layer of superhydrophobic coating on the glass surface. The coating itself has low free energy and often contains micro-nano particles, which meet the two necessary conditions of low free energy and surface roughness. In order to achieve good hydrophobic and superhydrophobic properties. The super-hydrophobic performance is macroscopically manifested by the contact angle of water droplets on the glass surface is greater than 150°, and the water droplets do not adhere to the glass surface and appear as round beads, which can spontaneous...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a superhydrophobic transparent glass and its preparation method, aiming to provide a glass with stable structure, superhydrophobic performance and high light transmission performance; The method of glass, that is, the use of ultrafast laser to directly ablate the submicron-nanometer periodic dot-like distribution structure on the glass surface, realize the superhydrophobic and high transparency of the glass surface, solve the general contradiction between superhydrophobicity and transparency, and also solve the conventional The preparation process of superhydrophobic glass is complicated, the production cost is high, the processing efficiency is low, and the coating adhesion is not strong, which makes it widely used in building window glass, transportation vehicle windows, automobile rearview mirrors, non-stick mirrors and solar crystalline silicon cells. Surface protection and other fields have broad application prospects

Images