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    Home > Coatings News > Paints and Coatings Market > Paint classification: paint

    Paint classification: paint

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: Introduction: Paint is a kind of chemical compound paint that can cover the surface of objects firmly, protect, decorate, mark and other special purposes The paint is a viscous oil pigment, which is flammable when not dry, insoluble in water, slightly soluble in fat, soluble in alcohol, aldehyde, ether, benzene, alkane, and soluble in gasoline, kerosene and diesel oil Composition: regardless of the type or form of paint, there are three basic substances: film-forming substance, secondary film-forming substance and auxiliary film-forming substance: ① Film forming substance Film forming materials, also known as binders, are mostly organic Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint is a kind of chemical compound paint that can cover the surface of objects firmly, protect, decorate, mark and other special purposes The paint is a viscous oil pigment, which is flammable when not dry, insoluble in water, slightly soluble in fat, soluble in alcohol, aldehyde, ether, benzene, alkane, and soluble in gasoline, kerosene and diesel oil Composition: regardless of the type or shape of paint, there are three basic substances: film-forming substance, secondary film-forming substance and auxiliary film-forming substance: ① film-forming substance Film forming materials are also called binders Most of them are organic polymer compounds such as natural resin (rosin, lacquer), coating (tung oil, linseed oil, soybean oil, fish oil, etc.), synthetic resin and other mixed ingredients They are formed by high temperature reaction, and there are also oil paints (such as inorganic zinc rich paint) composed of inorganic substances Film forming substance is the main body of paint, which determines the performance of paint film If there is no film-forming material, pigment and auxiliary materials can not form film ② Secondary film-forming substances secondary film-forming substances include various pigments, physical pigments and antirust pigments Pigments provide color and covering power for paint film, improve the protective performance and decorative effect of paint, and pigments with good weather resistance can improve the service life of paint The physical pigment can increase the thickness of the paint film By using the performance of its own "flake, needle" structure, through the accumulation and stacking of pigments, a fish scale paint film is formed, which can improve the service life of the paint film, improve the water resistance and rust prevention effect Through its physical and chemical antirust function, antirust pigment can prevent the surface of objects from being corroded by atmosphere and chemicals, and the metal surface from being corroded ③ Auxiliary film forming substances auxiliary film forming substances include various auxiliaries and solvents Various additives play an important role in the production process, storage process, use process and the formation process of paint film Although the amount of use is very small, it has a great influence on the performance of the film Even shape does not form a paint film such as: not dry, the bottom of the caking, skinning Waterborne paint needs more additives to meet the requirements of production, construction, storage and film formation The level of paint additives also represents the level of national paint Solvent is also known as "dispersion medium" (including various organic solvents and water) It is mainly used to dilute film-forming substances to form viscous liquid, so as to facilitate production and construction The mixture of film-forming base material and dispersing medium is often called paint Classification: ① according to the coating form (powder, liquid); ② according to the film-forming mechanism (conversion type, non conversion type); ③ according to the construction method (brush, roll, spray, soak, spray, electrophoresis); ④ according to the drying method (normal temperature drying, drying, moisture curing, steam curing, radiation curing); ⑤ according to the use level (primer, middle paint, finish paint, putty) ⑥ according to the appearance of the coating (varnish, color paint; matte, flat, matte, high gloss; hammer paint, relief paint...) ⑦ according to the object of use (car paint, ship paint, container paint, aircraft paint, home appliance paint...) ⑧ according to the performance of paint film (anticorrosive paint, insulating paint, conductive paint, heat-resistant paint...) ⑨ According to film-forming substances (alkyd, epoxy, chlorinated rubber, acrylic acid, polyurethane, ethylene...) Each of the above classification methods has its own characteristics, but no matter which classification method can not include all the specific coatings, so there is no unified classification method in the world China's national standard gb2705-92 adopts the classification method based on film-forming substances in coatings Coatings are usually composed of base materials (resin, adhesive), pigments, fillers, solvents and a small amount of functional additives According to the types of base materials, they can be divided into 17 categories; according to the performance characteristics, they can be divided into organic coatings, inorganic coatings, solvent-free coatings, water-based coatings, powder coatings, high solid coatings and thick paste coatings; according to their functional characteristics, they can also be divided into enamel , color paint, varnish, ready mixed paint, primer, finish paint and intermediate paint, etc.; the finished products include formwork paint, interior and exterior wall emulsion paint, fire-resistant emulsion paint, etc Function: it can protect against corrosion, water, oil, chemicals, light and temperature Exposed to the atmosphere, the objects are corroded by oxygen and water, resulting in metal corrosion, wood decay, cement weathering and other damage Coating the surface of the object to form a protective film can prevent or delay the occurrence and development of these damage phenomena, and prolong the service life of various materials Therefore, the protection is a major role of the coating Decoration function: color, luster, pattern and flatness Painted with different materials, the objects can get colorful appearance, beautify the living environment of human beings, and make great contribution to the material and spiritual life of human beings Other function marks, antifouling, insulation, etc Compared with the former two functions, this kind of function is more and more important for modern coatings Some modern coating varieties can provide a variety of special functions, such as: electrical insulation, conductivity, shielding electromagnetic wave, anti-static generation and other functions; anti mildew, sterilization, insecticidal, anti adhesion of marine organisms and other biochemical functions; high temperature resistance, heat preservation, temperature indication, flame retardation, ablation and heat insulation It also has the functions of anti-skid, self lubrication, anti fragmentation and splashing, as well as various functions such as anti noise, vibration reduction, sanitation and disinfection, anti condensation, anti icing, etc With the development of national economy and the progress of science and technology, coatings will provide and play a variety of new special functions in more aspects Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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