Nano-self-cleaning coatings make the exterior walls of buildings new for a long time

China Paint Network
News: With the implementation of China's residential industrialization and building energy conservation, the demand for high weather-resistant self-cleaning
fivewall coatings
is growing, and requires this self-cleaning external wall
coatings
with the following characteristics: not easy to attach to pollution, or attached pollutants can be removed with the help of rainwater, wind and other external natural conditions. Therefore, improving the stain resistance of building facades has become an important index to measure the quality of high-performance coatings. Due to the poor washability of traditional coatings, the long-term coating will change color, fall off, glass curtain wall or tile veneer will bring light pollution, increase building self-weight, there are safety risks and so on.
nometer self-cleaning paint makes the building facade lasting
At present, many buildings in China have not been cleaned for many years, resulting in a large number of building mottled, the urgent need for high-performance anti-fouling coatings to solve this problem, Zhisheng Weihua coating experts pointed out that coatings The soil resistance depends to a large extent on the anti-fouling ability of the basic
film-forming substance
and how to improve the soil resistance of film-forming organic matter through chemical molecular structure design and advanced polymerization technology is the key to improving the soil resistance of the outer wall coating. With the continuous development of emulsion technology and surface science and the emergence of new low-surface energy coating materials, by Beijing Zhisheng Weihua Chemical Co., Ltd. home-made research and development of anti-fouling nano-self-cleaning coating ZS-511, with "lotus leaf self-cleaning effect" special structure of the bionic principle, nano-modified new coatings.
has bionic principles for the technical development of self-cleaning coatings, and its ZS-511 nanometer self-cleaning coatings are successfully designed according to the "lotus leaf self-cleaning principle". The principle of self-cleaning of lotus leaves is that there are fine and uneven nanostructures on the surface of the lotus leaf, and advanced technology is used to make the coating form a convex shape similar to that of the lotus leaf on the coating surface during the drying of the film (Figure 1). This nanocoated according to the actual situation of domestic oil pollution, Zhisheng Weihua Chemical Co., Ltd. using nanostructure materials and PIN technology, with a strong surface pressure to make it with strong hydrophobic, oil-resistant capacity; Can make dust particles attached to the coating surface is suspended, so that the contact angle between water and the coating surface greatly increased, conducive to the water drop on the coating surface; At the same time, according to the principle of self-layering of the coating, the hydrophobic substance is introduced into the acrylic emulsion, so that the coating is automatically layered in the process of drying the film, so as to accumulate a layer of hydrophobic layer on the coating surface, and further ensure that the accumulated or adsorbed polluting particles are removed from the coating surface under the stroke of wind and rain for self-cleaning purposes (Figure 2).
Figure 2
nanomaterials of the special function and its micromolecule structure, but also let ZS-511 self-cleaning coating and the object's inororated silicon and calcium mating reaction, so that the object and coating film form a solid claw-like penetration, so that the coating film will not fall off, skinless, has a strong hardness and wash resistance. Using the material principle of the dual interface of nanomaterials, the intrusion of dust and oil pollution is effectively discharged, thus reducing the contact area with dust and surface by 90%, and making the self-cleaning function of wind and rain baptism more. Become the first choice of external wall self-cleaning paint, so that the effect of building facade has been new for a long time, for people to create a cleaner, healthier and more beautiful living environment.