4results about How to "Improve self-cleaning function" patented technology

This invention provides a self-cleaning coating composition, a self-cleaning coating, and a method for preparing the same. The self-cleaning coating composition comprises a carbon nanotube dispersion, a first nano-silica dispersion, a second nano-silica dispersion, and hexamethyldisilazane; wherein the first nano-silica dispersion comprises first nano-silica, the second nano-silica dispersion comprises second nano-silica, and the average particle size difference between the first and second nano-silica is 40–60 nm. This invention utilizes two different hydrophobic nano-silica particles with an average particle size difference within this range to construct a suitable nano-roughness, while simultaneously increasing the porosity of the coating by adding a small amount of nanotubes. The roughness construction enhances the self-cleaning performance of the coating, while the micropore construction reduces light reflection, improves the light transmittance of the self-cleaning coating, and provides excellent self-cleaning function.

The application belongs to the technical field of solar cells, and particularly relates to a high-transmittance nano coating for transparent conductive oxide (TCO) glass of a perovskite solar cell and a preparation method thereof. The high-transmittance nano coating for the TCO glass of the perovskite solar cell is prepared from a composite silica dispersion liquid, a polyhydroxy polymer dispersion liquid and a wetting and leveling agent. The high-transmittance nano coating has higher mechanical properties, higher stability and service life, superhydrophilicity and self-cleaning property, can be prepared in a normal temperature environment, is suitable for the perovskite solar cell, and can increase the light transmittance of the TCO glass of the perovskite solar cell.

A method for preparing colored radiant cooling wood is disclosed. The purpose of this invention is to solve the application problems of existing microstructured colored radiant coolers, such as difficulty in preparation, high production costs, and lack of environmental friendliness. The preparation method includes: 1. Immersing dried wood in a lignin removal solution under vacuum conditions, followed by a water bath reaction at 75–80°C; 2. Dispersing fluorescent dye in an organic solvent, mixing it with methyl methacrylate monomer, adding the initiator azobisisobutyronitrile (AIBN), and prepolymerizing at 70–90°C; 3. Permeating the delignified wood into a prepolymerized dye / MMA mixed solution under vacuum; 4. Heating and polymerizing at 70–90°C. The delignified wood used in this invention is green and environmentally friendly. While maintaining excellent mechanical strength, the shape and size of the colored radiant cooler can be rationally set according to the needs of different scenarios, taking into account both flexibility and toughness, and is cost-effective.

The present application discloses a protection method for a cooling water electromagnetic valve of a urea tank. It includes judging the opening and closing of the cooling water electromagnetic valve according to the engine speed, and the cooling water electromagnetic valve is an on-off electromagnetic valve or a proportional electromagnetic valve. The present application prevents the cooling water electromagnetic valve from being damaged by the impact of the cooling water flow, and prevents the problem of the impurities in the cooling water being stuck in the cooling water electromagnetic valve.