A resin is the secretion of hydrocarbons (hydrocarbons) from a variety of plants, especially conifers. Because of its special chemical structure, and can be used as adhesive and latex paint as materials, have attracted much attention for its value.
Only this kind of natural resin itself, but with the development of chemical industry, there are many from synthetic polymers, among the chemical and physical properties of some polymers and natural resin is very similar, therefore, the polymer is called synthetic resin.
It is a mixture of a variety of polymers, so they have different melting points. Resin can be divided into two kinds of natural resin and synthetic resin.
