[Castor oil supply and procurement] Castor oil can be used as a plasticizer

Castor oil is a triglyceride of fatty acids. Castor oil is found in castor beans In the seeds, its content is 35% to 57.%. “Castor oil is obtained by squeezing or solvent extraction. It is almost colorless or slightly yellow, clear and viscous liquid; has a slight odor; has a light taste and then is slightly pungent, and is easily soluble in ethanol. , can be mixed with absolute ethanol, chloroform, ether or glacial acetic acid.

According to the castor oil supplier, castor oil can be used as a plasticizer, as follows:

Thermal cracking of castor oil can produce sebacic acid, which can be reacted with the corresponding alcohol esterification to produce a series of low-temperature resistant plasticizers. Azelaic acid can be produced by oxidizing castor oil with nitric acid, and then azelaic acid ester can be synthesized. , is a plasticizer with better performance.

After methyl esterification of ricinoleic acid, epoxy acetyl ricinoleic acid methyl ester can be obtained by acetylation and epoxidation. Castor oil and acetic acid are mixed under normal conditions. Epoxidized under pressure, the product is epoxidized castor oil. Its comprehensive performance is equivalent to that of epoxidized soybean oil, and it is widely used as a plasticizer and stabilizer for PVC.

Introducing -SO3Na into castor oil Used with -PO3Na group in plastic products, it has excellent plasticizing effect.