Among the paint components, different from ordinary pigments, which are mainly colored, pigments with specific functions such as antifouling, temperature display, luminescence, and antirust are collectively called functional pigments, which play an important role in coatings.
Pearlescent pigment: This is composed of several thin layers of metal oxide coated with mica. Changing the thin layer of metal oxide can produce different pearlescent effects. The unique soft pearl luster of pearlescent pigments has an unparalleled effect. The special surface structure, high refractive index and good transparency enable it to create an effect similar to pearl luster in a transparent medium. Pearlescent pigments have low heavy metal content and comply with relevant safety technical standards. Neither acid nor alkali can corrode pearlescent pigments at room temperature, and pearlescent pigments cannot burn, spontaneously combust, and are non-conductive, and can withstand high temperatures of 600~800℃. Pearlescent pigments can be used in reactive coatings for radiation curing systems (electron beam curing, light curing). The special surface chemical structure of pearlescent pigments makes it have excellent hydrophilicity, so it can be applied to water-based coatings, but it has poor lipophilicity. Therefore, when used in organic systems, it will have poor dispersibility. Surface treatment of pearlescent pigments is required. , So that it can also be well used in organic systems.
Pearlescent pigments have excellent chemical resistance, high temperature resistance, strong gloss, good decorative effect, non-toxic, light resistance, weather resistance, acid and alkali resistance, good dispersion, non-conductive, non-magnetic and other excellent characteristics, and are widely used in coatings In the industry. No matter what kind of monochromatic paint is mixed with pearlescent pigments, it can become pearlescent paint. Its pearlescent and metallic luster effects are impressive. At present, pearlescent coatings have been used in many fields such as automobiles, locomotives, daily necessities, and building materials.