Main function and classification of architectural coatings-Iota

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Service > Main function and classification of architectural coatings

Main function and classification of architectural coatings

1, definition: Tu on the surface of the object can form tightly adherent to the continuous solid state thin film with protective and decorative or special properties (such as insulation, anti-corrosion, logo and other) name of a kind of liquid or solid material. Early most with vegetable oil or natural lacquer as the main raw material, so it is "paint" said, now synthetic resin has big or to replace all the vegetable oil and lacquer, called for "paint" is more accurate.
2, the main function of architectural coatings:
Decorated feature: give the building rich colors, and has a certain gloss and smoothness, as well as better texture and feel, can also increase the level of feeling and three-dimensional sense.
Protection function: buildings exposed to the atmosphere, from the sun, wind, rain, snow and hail attack; due to temperature, freezing thawing cycle, corrosive gas and microbial role, the coating can play a protective role.
Special features: a waterproof fire, anti mildew, insecticidal, sound insulation, anti-static and special function of luminous paint.
3. Classification of architectural coatings:
Architectural decoration paint mainly refers to the wall, exterior wall paint, ceiling, the floor also includes doors and windows, roofing and all wood components and metal components of a type of decorative paint.
A, according to the use of paint classification:
Wall paint (interior wall paint, exterior wall paint), floor paint, roofing paint, wood coatings, metal rust paint.
B, according to the main film material classification:
Organic polymer (poly vinyl acetate, acrylic acid, epoxy resin and polyurethane etc.).
Inorganic polymer coatings (silica sol and silicate);
Organic inorganic polymer composite coatings (polyvinyl alcohol water glass, polymer modified cement and water silicone, etc.);
(also known as oil paint coating drying oil based traditional paint).
At present, most of the coatings are organic coatings.
C, according to the dispersive medium classification:
Water soluble coatings: the product of the water soluble polymer as the film material --- the dispersing medium is water.
Latex paint: the dispersion system (latex), which is based on the dispersion system of various unsaturated monomers, is the latex paint after the emulsion polymerization and the additives..
Solvent based coatings: polymer synthetic resin as film material --- the dispersion medium is organic solvent such as: toluene, xylene, 200 solvent oil and alcohol, etc..
Solvent free type coatings: the thermosetting resin as film material, through the addition of curing agent, such as powder coating.
D, according to the classification of decorative features: flat wall paint, sand wall paint, three-dimensional decorative pattern finishes paint
E, according to the role of the coating classification:
For isolating paint and sealant upper lower surface of the substrate material.
Putty used to remove thick paste paint small surface defects before painting.
Primer: when the coating, directly coated in the bottom of the paint.
Intermediate coating: multilayer coating between primer and topcoat, used to trim the flat surface paint.
Topcoat: multilayer coating, coated on the upper layer of paint or varnish.
4, what is latex paint
Any water used as solvent or dispersing medium can be called as the paint of water.. Water soluble coatings, water emulsion coatings and water dispersible coatings.
Latex paint is commonly known as synthetic resin latex paint, and belongs to water dispersible paint..
The latex paint is based on synthetic resin latex, and the pigment and filler are mixed with various additives after grinding and dispersing..
The pollution of the coatings is mainly the emission of organic volatiles (i.e. VOC) to the atmosphere, so the "VOC" of the coatings is the subject of environmental protection for the coatings..
At present, the main way of coating is to reduce the "VOC".:
High solid coatings for improving the solid content of coatings
Solvent free coatings for volatile solvents with active solvents
Powder coating of powder form by melt film forming
Water paint for organic solvent instead of water
Because latex paint is water used as solvent, the influence of organic materials used in solvent based coatings on the environment and human health caused by organic materials is solved.. Therefore, in recent years, in architectural decoration paint widely used.

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