The composition and classification of coatings-Iota

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Service > The composition and classification of coatings

The composition and classification of coatings

Paint composition

Paint generally consists of four basic components: the film-forming substance (resin), pigments(including pigments, solvents and additives).

A film forming material is the main component of the film, including grease, oil processing products, cellulose derivatives, natural resin and synthetic resin. Membrane material also includes a portion of the nonvolatile reactive diluent, it is the coating firmly attached to the painted surface form continuous films of the main material, coating composition based, determines the basic characteristics of the coating.

2 additives such as defoaming agent, leveling agent, also has some special functions such asadditives, substrate wetting agent. These additives are generally not film, but the film formingprocess of base material and durability plays a very important role.

3 pigments generally divided into two types, a coloring pigment, titanium dioxide, chrome yellow, there is a physical pigment is often said that the filler, such as calcium carbonate, talcum powder

Four solvents include hydrocarbon solvents (mineral oil, kerosene, gasoline, benzene, toluene, xylene, etc.), alcohols, ethers, ketones and esters. The main function of solvent and water is thebinder dispersion and the formation of viscous liquid. It is helpful to the construction and improvement of some properties of coating film.

According to the coatings used in the main membrane material can paint oil paint, fiber coating, synthetic paints and inorganic coatings; according to the properties of coating or film can be divided into solution, latex, sol, powder, light extinction, and colorful art paint.

The type of paint

Many classification methods of paint, usually can be classified as follows:

(1) according to the morphology of coatings can be divided into water-based paint, solvent coatings,powder coatings, high solid coatings etc.;

(2) according to the construction method can be divided into brush paint, paint spraying, roller coating, dip coating, electrophoresis coating etc.;

(3) according to the construction process can be divided into primer, paint (two primer), paint,varnish etc.;

(4) according to the function can be divided into nonstick coatings, Teflon coating, decorative coatings, anti-corrosion coatings, conductive coating, antirust paint, resistance to high temperature coating, temperature coatings, insulation coatings, fire retardant coating, waterproof coating etc.

(5) according to use can be divided into architectural coatings, paint cans, automobile coatings, aircraft paint, coatings for household appliances, wood coatings, paint bridge, plastic coatings, paper coatings, marine coatings, wind power coatings, nuclear power coatings, such as.

(6) household paint can be divided into interior wall paint, exterior wall paint, wood paint, metalpaint, floor paint.

(7) according to the properties of the film divided (anticorrosive paint, insulating paint, conductive paint, paint heat...)

(8) according to the membrane material (natural resin paint, phenolic paint, alkyd paint, amino paint, nitro paint, epoxy paint, chlorinated rubber paint, acrylic acid paint, polyurethane paint, silicone resin paint, fluorocarbon resin paint, polysiloxane paint, vinyl resin paint.

A) according to classification of base material can be divided into: organic coatings, inorganic coating, organic inorganic compound coating. Organic coatings due to the use of different solvent, and organic solvent based paint and organic water of (including water emulsion and water soluble) coating. The life of the coatings are generally organic coatings. Inorganic coating is the use of inorganic polymer material as base material produced by coating, including water soluble of silicate and silica sol system, organic and inorganic polymer systems. Organic inorganic composite coatings have two composite form, a is coating in the production of the organic material and inorganic material as base material, forming a composite coating; another is organic coatings and inorganic coatings in decorative construction combined with each other.

B) according to the classification of decorative effect: can be divided into: 1. The surface flat smooth surface coatings (commonly known as ping TU), which is the most common of a construction; 2. The surface is like sand decorative effect of sand wall like paint, such as lacquer; 3. The formation of concave and convex three-dimensional pattern decorative effect of multi layer coating, such as relief.

C) according to the building's use of the site classification: is divided into an inner wall paint, wall paint, floor paint, door and window coatings and ceiling paint.

D) by the use of functional classification: can be divided into ordinary paint and special features of architectural coatings, such as fire retardant coating, waterproof coating, anti - mildew paint, road marking paint etc.).

E) according to the use of color classification: such as metal paint, paint color (or called: solid paint),transparent varnish etc..