Coating knowledge: type of solvent coating

Core tip: paint solvent mainly includes three categories of products, the first category is hydrocarbon solvent, which is classified according to different boiling points; the second category is the most widely used and most mainstream one, which is oxygenated solvent; the third category is the most unique solvent water These three categories are described in detail below Hydrocarbon solvent: it is usually a mixture of different molecular weight materials, and is classified by different boiling points, including aliphatic hydrocarbon, aromatic hydrocarbon, chlorinated hydrocarbon, terpene and other products Oxygenated solvent: a solvent containing oxygen atoms in a molecule They provide a wide range of solubility and volatility Many resins are insoluble in hydrocarbon solvents, but soluble in Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: paint solvent mainly includes three categories of products, the first category is hydrocarbon solvent, which is classified according to different boiling points; the second category is also the most widely used and most mainstream one, which is oxygenated solvent; the third category is the most unique solvent water These three categories are described in detail below Hydrocarbon solvent: it is usually a mixture of different molecular weight materials, and is classified by different boiling points, including aliphatic hydrocarbon, aromatic hydrocarbon, chlorinated hydrocarbon, terpene and other products Oxygenated solvent: a solvent containing oxygen atoms in a molecule They provide a wide range of solubility and volatility Many resins are insoluble in hydrocarbon solvents, but soluble in oxygenated solvents Common products include alcohol, ketone, ester and alcohol ether Water: as a unique type of solvent, there are two active hydrogen ions and one electronegative oxygen molecule in water molecules Unlike alcohols, water molecules are combined in three-dimensional array, similar to cross-linked polymers When water molecules combine with each other in this way, the strength of the second valence bond is greater than that of alcohols Compared with alcohol as solvent, water as solvent needs more energy to separate molecules and combine them with other materials This means that water is an efficient solvent for many resin materials At the same time, it has the disadvantages of high specific energy and high boiling point Unlike most solvents, the evaporation rate of water is greatly affected by the relative humidity of the surrounding environment and the air flow through the wet film during construction Finally, the same unique molecular structure, which represents the low vapor pressure of water, results in high surface tension This directly affects the wettability of the coating products and the adhesion to the substrate This high surface energy provided by hydrogen ions makes it difficult to wet the substrate with water and to obtain a good adhesion bond to the substrate with low surface energy 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,