Introduction and application of water-based ceramic coatings for domestic curtain walls

Traditional coatings are commonly known as "paints", which are organic coatings based on The developed synthetic resin coatings are still organic coatings. Most organic coatings use some raw materials that are harmful to the human body and the environment in the production process, and also emit harmful waste water and gases during the production process, and even release harmful gases for a period of time after construction. Most organic coatings are flammable substances, and people are prone to degradation reactions when exposed to the natural environment. These coatings end up producing large amounts of the "greenhouse effect" gas carbon dioxide when incinerated or degraded.

The adverse impact of the paint industry on the environment is mainly manifested in two aspects. First, the coatings industry emits volatile organic compounds (VOCs) into the atmosphere. This VOC mainly comes from two parts, one part is the volatile organic compounds in the film-forming substances, that is, free monomers, which are generally in small quantities, and the other part is organic solvents. Second, the coating consumes a lot of non-renewable resources in the production process, such as coal and oil. The VOC emissions are analyzed in the table below. It can be seen from the table that 19% of the VOC in the atmosphere is emitted by the paint industry, which is not a small proportion. Therefore, it is not an exaggeration to say that the paint industry will cause serious pollution to the environment. word.

In view of the adverse effects of traditional paint industry on the environment, since the 20th century, countries around the world have formulated strict environmental protection Regulations to limit the discharge of industrial waste water, waste gas and waste residue, and phasing out some raw materials that are harmful to the environment and human body are inevitable. To reduce the environmental impact of the coatings industry, coatings engineers have designed new coatings that reduce VOC emissions and meet environmental regulations, including waterborne coatings, high solids coatings, solvent-free liquid resin coatings, powder coatings, and radiation-cured coatings Wait.

Water-based ceramic coating for curtain wallUnlike any traditional synthetic resin organic paint, it is a brand new water-based inorganic paint. It is mainly composed of nano-inorganic compounds, which are cured by low-temperature heating after coating to form a coating film with similar properties to ceramics.

Film formation principle:

A variety of nanoscale oxides, hydrolyzed and cured at low temperature through an improved sol-gel reaction, behave similarly Paint films for ceramics and glass.

The film-forming raw materials are completely different from the current resin-based organic coatings, such as Teflon, silicone, polyethersulfone, etc. . So the performance is very different.

The film-forming mechanism is also different from that of enamel, so it overcomes the poor thermal shock resistance, physical shock resistance and easy bursting of enamel. , less color, difficult construction, low yield and other problems.

The raw materials of water-based ceramic coatings for curtain wall come from very common and abundant natural ores and metal oxides (such as: Limestone, sticky quartz sand), and the production process is not complicated, and the energy consumption is relatively low. Therefore, the raw material resources are very rich, which not only has great resource advantages, but also meets the low-carbon requirements, compared with the organic coatings that completely rely on the petrochemical industry and use petroleum as the main raw material.

Water-based ceramic coating for curtain wall uses water as the dispersion medium, which fundamentally solves the environmental pollution caused by the solvent in the coating. Environmental performance is self-evident. Curtain wall water-based ceramic coatings do not have the hazard of VOCs such as free monomers. Even if they are used for fire prevention and heat resistance, they will not release harmful substances into the atmosphere under the action of flame or high temperature.

Water-based ceramic coatings for curtain walls inherit the advantages of organic coatings and inorganic coatings, and combine high temperature resistance, high hardness, and super weather resistance. , Non-combustible, smoke-free, environmentally friendly, non-toxic, rich in color, and easy to paint. It can be used in a variety of high-demand occasions. Its unique properties solve many problems that traditional organic coatings cannot.