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2 results about "Self-cleaning glass" patented technology
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Self-cleaning glass is a specific type of glass with a surface that keeps itself free of dirt and grime. The field of self-cleaning coatings on glass is divided into two categories: hydrophobic and hydrophilic. These two types of coating both clean themselves through the action of water, the former by rolling droplets and the latter by sheeting water that carries away dirt. Hydrophilic coatings based on titania (titanium dioxide), however, have an additional property: they can chemically break down absorbed dirt in sunlight.
Preparation method of frost-proof and dust-proof self-cleaning glass curtain wall
The application discloses a preparation method of frost-proof and dust-resistant self-cleaning glass curtain wall. The method comprises the following steps: depositing nano particles on the surface of glass; etching the glass by taking the nano particles as a template to obtain a mechanically stable nano conical column array structure; grafting liquid-like flexible molecular brushes on the surface of the nano conical column array structure to obtain super-hydrophobic curtain wall surface glass; and assembling the super-hydrophobic curtain wall surface glass into a glass curtain wall. The application provides a self frost-proof technology. Frost crystals are difficult to nucleate on the surface and frost formation is inhibited by the combination of high slip and low adhesion of the liquid-like flexible molecular brushes and the low surface solid area fraction of the rough structure. The frost-proof and dust-resistant self-cleaning glass curtain wall prepared by the application is self dust-proof. The deposition and adhesion of dust particles on the surface are inhibited by the combination of high slip and low adhesion of the liquid-like flexible molecular brushes and the low surface solid area fraction of the rough structure, so that self-cleaning is realized. The application is simple to use, low in cost and water resource saving.
Owner:SUN YAT SEN UNIV
A method for improving the hydrophobic and transparent properties of a glass surface
This invention discloses a method for improving the hydrophobicity and transparency of glass surfaces. Glass treated with materials such as fluorinated silanes / non-fluorinated silanes is immersed in volatile solvents and treated in an atmospheric or high-pressure reactor at different temperatures (30-300°C) and for different times (1-180 minutes). The treated glass is then cured at 50-300°C for 10-200 minutes to obtain modified glass. This method significantly improves the hydrophobicity of the glass, achieving a water contact angle of 110°-122°, while maintaining the material's transparency (transmittance greater than 95%) and excellent durability. Compared to existing technologies, this invention is simple to operate, low in cost, and has higher durability and adaptability, making it applicable to fields such as self-cleaning glass, waterproof coatings, and optical equipment.
Owner:NANJING UNIV OF SCI & TECH