Лако-красочные материалы — производство

This cannot always be determined, but for acrylic resins, for example, it can be calculated approximately. The actual glass-rubber transition is of only minor interest either for deposition, or for use, but its value is related both to properties such as the brittleness and flexibility of the final film, and also to the melting point of the uncrosslinked polymer, and hence to its flow behaviour during deposition. When the system is to be crosslinked with a brittle resin such as a melamine, or a phenolic, then a Tg of about 0°C needs to be aimed for in the base polymer.