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Introduction to Alkyd Paint

2021-11-12

The main ingredient of Alkyd Paint: Alkyd resin
Alkyd resin is a kind of polymer made by polyhydric alcohol, polybasic acid and fatty acid as the main raw materials. Due to mature synthesis technology, easy availability of raw materials, and good comprehensive performance of resin coating, alkyd resin has become a synthetic One of the resins with the largest dosage and the most versatile.

Chain polymerization reaction film formation-oxidative polymerization form
The auto-oxidation of the unsaturated fatty acid double bond induces polymerization to form a network-like macromolecular structure and solidify into a film. The speed of oxidative polymerization is related to the number and position of functional groups (double bond groups) contained in it, and the speed of oxygen transfer (the use of metals such as cobalt, manganese, lead and other metals to promote oxygen transfer and increase the curing speed). Coatings that use similar curing methods include natural resin coatings, phenolic resin coatings, and epoxy resin coatings containing oil and fat.