Resins are divided into natural resins and synthetic resins. Natural resin refers to an amorphous organic substance derived from the secretions of animals and plants in nature. Synthetic resins
refer to resin products obtained by chemical synthesis of simple organic substances or chemical reactions of certain natural products, such as phenolic resins, polyvinyl chloride resins, etc.,
among which synthetic resins are the main components of plastics. Resin usually refers to an organic polymer that has a softening or melting range after being heated, and has a tendency
to flow under the action of external force during softening. It is a solid, semi-solid, or liquid organic polymer at room temperature. In a broad definition, any polymer compound that can be used as a raw material
for plastic products processing is called a resin. Has good heat resistance, strength, chemical resistance and fluidity.