The main components of natural vegetable oils are fatty acid triglycerides. The fatty acids that make up the vegetable oil molecule are mainly oleic acid containing one double bond, linoleic acid containing two double bonds and linolenic acid containing three double bonds, in addition to palmitic acid, stearic acid, as well as ricinoleic acid, erucic acid and so on, and these raw materials can be extracted from natural fats and oils, such as linseed oil, hemp oil, soursop, tung, catalpa and walnut oils, as well as soya bean, safflower and sunflower seed oils. Triglyceride is a very important substance, it can synthesize different monomers, these monomers after a series of chemical reactions such as polymerization, polycondensation, esterification, etc., can be formed after a series of polymers with excellent performance, used to manufacture a variety of raw materials to meet industrial needs.