May. 07, 2020
Surfactants are a large class of organic compounds. Their properties are very distinctive, and their applications are extremely flexible and extensive, and they have great practical value.
Paint refers to the engineering material applied to the surface of an object, which can form a coating film with protection, decoration or special properties. People commonly refer to paint as a type of paint. The paint has many functions: in daily life, house construction, wood furniture, daily industry, etc., it is decorated with brightly colored paints and plays a decorative role, which can give the object a beautiful feeling and improve its commodity value; for building materials, wood , Metal, etc. are coated with paint to protect it, so as to increase the durability of the article and prevent it from being corroded; the paint is used as a color sign, can be used as a traffic signal, a dangerous goods sign, etc .; paints with different compositions can also play a variety Function, such as fire, moisture, mildew, camouflage, discoloration, thermal insulation, anti-radiation, anti-toxic gas pollution, etc.
Coatings are generally composed of four types of raw materials: film-forming substances, pigments, solvents and additives. The film-forming substance is the foundation of the coating; the pigment is generally a fine powdery colored substance; in addition to solvent-free coatings, various liquid coatings generally contain solvents. The components currently used as coating solvents are water, aliphatic hydrocarbons, and aromatics. Hydrocarbons, alcohols, esters, ethers, ketones, terpenes, chlorine-containing organics, etc .; additives are auxiliary components of coatings, and additives are generally surfactants, which play a very significant role in coatings.
According to the effect on the paint, the surfactants for paint can be divided into the following types: (1) In the production process of paint: defoamer, wetting agent, dispersant, emulsifier, etc. (2) paint storage process : Anti-caking agent, anti-precipitation agent, etc. (3) Coating film formation: drier, curing agent, leveling agent, anti-sagging agent, etc. (4) Effect on coating film performance: plasticizer, smoothing agent , Antifungal agent, flame retardant, antistatic agent, ultraviolet absorber, etc.
The above information is provided by surface-active agents manufacturer.
