What is resin and classification of resins?
Resins are normally considered as normal metabolites or secretions of plant tissues, often in the ducts of ducts or ducts, especially in the heartwood of perennial woody plants, in combination with volatile oils. A mixture of a variety of ingredients, usually amorphous solids, having a slightly shiny surface, hard and brittle, and a few semi solids
Rosin, benzoin is a natural resin, phenolic resin, polyvinyl chloride resin, synthetic resin. Resin is the main raw material for making plastics. It is also used in paints, adhesives, insulation and so on. Resins are made of natural resins and synthetic resins. Natural resin is an amorphous organic matter from the secretions of plants and animals in nature, such as rosin, shellac, amber, etc.. A synthetic resin is a resin product obtained by the chemical synthesis of a simple organic substance or by the chemical reaction of some natural products.
Insoluble in water, nor water swelling, soluble in alcohol, ether, chloroform and other organic solvents. Heating, softening, and finally melting, burning when there is smoke, and has a special aroma or odor. Resin is divided into two categories: natural resin and synthetic resin.
