The market for self-cleaning coatings has a bright future

Summary:

    Industry know that building exterior paint can beautify the environment and living room, but because traditional paint is resistant to The washability is poor, and the coating will change color and fall off within a short time. The glass curtain wall or tile veneer will bring light pollution, increase the weight of the building, and have potential safety hazards. And with the urban environmental pollution is intensifying, dust pollution, gas pollution is particularly serious. Building facades, especially high-rise buildings, are being increasingly eroded. The ideal exterior wall protection and decoration materials in the 21st century should have excellent water resistance, permeability to water vapor, anti-ultraviolet light and self-cleaning functions, and can maintain a clean and beautiful appearance for a long time. How to make the exterior wall of the building last for a long time? At present, self-cleaning coatings will create a cleaner, healthier and more beautiful living environment for people. The field of self-cleaning coatings already has mature technical strength: only in Shanghai World Expo, the exterior wall of Japan Pavilion and the exterior wall of China Aviation Pavilion adopt ETFE self-cleaning film technology and PVC self-cleaning film technology, both of which have well demonstrated self-cleaning technology. The advantages.

    The production of "self-cleaning paint" is not a new term. As early as 2000, Germany launched a silicone resin exterior wall paint with the function of "lotus leaf self-cleaning", and the wall dust can achieve self-cleaning effect through rainwater ; In 2001, Japan also launched photocatalytic self-cleaning exterior wall coatings, which can achieve self-cleaning effects by decomposing the oil stains on the wall. In recent years, many domestic scientific research institutions have launched products such as self-cleaning coatings with their own characteristics, which not only improves the scrub resistance of exterior wall coatings from more than 1,000 times to more than 10,000 times, but also prolongs the aging time by more than 2 times. , and coating the surface of glass and ceramic tiles with a nano-thin layer to make self-cleaning glass and ceramic tiles, which can make oil stains, bacteria, etc. adhering to the surface become gas or gas under the irradiation of light and the catalysis of nano-materials. Substances that are easily wiped off.