First, the paint is a chemical mixture coating that can securely cover the surface of the object and protect, decorate, mark and other special applications. The authoritative "Paint Process" book of the Chinese coating industry is defined as follows: "The paint is a material that can be applied to the surface of objects with different construction techniques to form a firm adherent, certain strength, and continuous Solid film. The film formed in this way is called coating film, also known as paint film or coating.†It belongs to organic chemical polymer materials, and the formed coating film belongs to the type of polymer compound. According to the classification of modern chemical products, coatings are fine chemical products. Modern coatings are gradually becoming a type of versatile engineering material and an important industry in the chemical industry.
(Paint: A liquid mixture that is used as a decorative or protective outer layer, usually consisting of a liquid vehicle and a solid pigment.) Coating: A substance that coats the surface of an object to make it aesthetically appealing or resistant to corrosion. Such as: paint: the old name of the paint; refers to the oil and paint products commonly used in the name of a specific paint species commonly used "paint" word "paint", such as reconcile paint, primer, topcoat, etc.: After long-term development, There are many ways to classify its products, and there are many varieties of coatings, and there are many classification methods:
1 according to paint form (powder, liquid)
2 According to the mechanism of film formation (transformed, non-converted)
3 According to the construction method (brush, roller, spray, dip, shower, electrophoresis)
4 According to the drying mode (normal temperature drying, drying, moisture curing, steam curing, radiation curing)
5 according to the use of hierarchical points (primer, middle paint, topcoat, putty, etc.)
6 according to the appearance of the film (varnish, paint; no light, flat light, matt, high light; hammer paint, embossed paint ...)
7 According to the use of objects (automotive paint, marine paint, container paint, aircraft paint, home appliances paint ... ...) Marine paint can also be divided into anti-rust coatings, anti-corrosion coatings, anti-fouling coatings, weathering coatings, according to the characteristics of the use of the site and the application environment Heat-resistant paints and boat primers, hull coatings, deck paints, sign paints, oil tank paints, battery cabin paints, ballast water tank paints, ammunition tank paints, life tank paints and other special function paints.
8 according to the film performance points (anti-corrosion paint, insulating paint, conductive paint, heat-resistant paint ... ...)9 According to the various classification methods of film-forming substances (alkyd, epoxy, chlorinated rubber, acrylic, polyurethane, ethylene, ...) each has its own characteristics, but no matter which one of the classification methods, it is not possible to apply coatings. Including it, there is no unified classification method in the world. China's national standard GB2705-92 uses a classification method based on film-forming substances in paints.
Coatings are usually composed of base materials (resin, adhesives), pigments, fillers, solvents, and a small amount of functional additives. They can be divided into 17 categories according to the types of base materials; they can be divided into organic coatings, inorganic coatings, and solvents according to performance characteristics. Paints, solvent-free paints, water-based paints, powder paints, high-solids paints, and high-viscosity paints; can be divided into enamels, paints, varnishes, lacquers, primers, topcoats, and intermediates according to their functional characteristics. Lacquer, etc.; Finished products are template lacquer, interior and exterior latex paint, fireproof latex paint, etc.
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