Functional and structural characteristics of the pigment described in detail

With stain, mildew, fire, showing temperature, light, rust and other specific effect pigments collectively. Generally the rust paint as separate categories, do not fall within the functional pigments. Functional Pigments main varieties: a variety of functions barium metaborate, antifouling paint antifouling paint, with temperature change color temperature indicating paint, luminous paint luminous at night, with pearl luster pearl pigments.inganic pigments
A white inorganic pigment, slightly soluble in water. It is a typical functional pigments mixed with various types of paints, coatings can enhance the mildew, rust-proof, fireproof, anti-chalking and other properties. Usually after barium metaborate silica surface treatment, is formed on the surface of Si-O-Si bond, the particles are easy to agglomerate, improve paint properties. Barium metaborate, barium sulfate and borax solution is added to the autoclave, then adding a small amount of sodium silicate was heated to 125 ~ 140 ℃, after a few hours reaction, cooling, filtering, washing, drying derived.
Antifouling paints commonly used two kinds of cuprous oxide and mercuric oxide. Cuprous oxide Cu □ O, one kind of reddish or purple powder. It is formulated with an antifouling paint, coating the bottom of the vessel, can effectively prevent the attachment of marine organisms on the bottom breeding. Cuprous oxide, copper oxide, usually obtained fine, high purity products are available electrolysis Preparation. Mercuric oxide HgO, red or orange color powder. As antifouling paints often used in conjunction with cuprous oxide, antifouling effect is remarkable. Because mercury can cause pollution, has been as little as possible with or without. Mercury chloride, mercury oxide and sodium chloride can be added to an aqueous solution of an excess of sodium hydroxide precipitate obtained.plastic processing aid
Luminescent pigments are fluorescent pigments and phosphorescent pigments. A class of fluorescent pigments can be issued under ultraviolet rays fluorescent organic pigments. Fluorescent pigments can be divided into two categories: one is dissolved in a water-soluble fluorescent dye pigments made from the resin. These dyes are mainly basic dyes such as Basic Yellow, Rhodamine, pink and other alkaline triaryl methane compounds (there are also individual acid dyes). First dye dissolved in melamine - Toluenesulfonamide - formaldehyde resin monomers by polymerization into resins, and then smash and post-processing that is finished paint pigments. But such fluorescent pigment light fastness is poor. The other is with a fluorescent water-insoluble organic compounds such as dyes dispersed in a fluorescent yellow fluorescent yellow H5GL FFL and disperse dyes such as the original, the pigment that is finished processing fluorescent pigments. Such pigments chromatography is complete, yellow, orange, red, purple, green, blue, colorful, used in plastics, inks, paints, stationery, you can enhance the decorative effect.