The role of paint
(1) Protective effect
(2) Decorative effect
(3) Special role
In addition to the functions of protection and decoration, the coating can also endow special functions such as insulation, antifouling, antibacterial, mildew resistance, damping, flame retardancy, temperature display, electrical conductivity, magnetic conduction, radiation protection, antistatic, and stealth.
Coating film formation method
(1) Physical film formation method
① Solvent volatilization and film formation
Such as nitrocellulose paint, asphalt paint and rubber paint, etc.
② Polymer coagulation and film formation
Such as architectural latex coatings, non-water-dispersible coatings and organic sols.
(2) Chemical film formation method
① Oxidative polymerization type
Oxidation-polymerized coatings generally refer to grease or grease-modified coatings. The oil components are mostly dry oils, that is, glycerides of mixed unsaturated fatty acids.
② Cross-linked curing type
According to the different ways of cross-linking initiation, the cross-linking curing type film can be divided into: curing agent curing type, heat curing type, ultraviolet light curing type, etc.
