Лако-красочные материалы — производство

Terpene solvents are of plant origin, obtained from pine trees and to some extent as a by-product of the citrus industry. The important solvents in this group are turpentine, dipentene, and pine oil, which are mixtures of C10 unsaturated hydrocarbon compounds. They are the oldest type of solvents used in the coating industry. Terpene sol­vents have a volatility comparable to that of mineral spirits, but they are losing their commercial significance in the recent years due to their higher cost compared comparable petroleum based hydrocar­bon solvents. d-Limonene is a terpene hydrocarbon solvent obtained from by-products of the citrus industry. Their greater solvency com­pared to aliphatic hydrocarbons, narrower range of solvency and evaporation rate, and stronger odor are some typical characteri­stics of these solvents. They were mainly used in combination with mineral spirits in coatings based on oxidatively crosslinking oil and alkyd resins to improve flow and leveling, and hence gloss.