Polymer Sources and Geographical Origins

The three geographical sources to remember are Russia, the United Arab Emirates (UAE) and Saudi Arabia. These are countries from which crude oil is obtained; they are not names of polymers. They are also not the only countries that produce crude oil.

From crude oil to a usable polymer

Crude oil must be processed before it can become a material suitable for making products. At a refinery, fractional distillation separates it into fractions: mixtures of substances with different boiling ranges. Further processing provides the smaller molecules needed for polymer manufacture. This can include cracking, which breaks larger molecules into smaller ones.

Small molecules called monomers are then chemically joined through polymerisation to form polymers. The resulting materials can be processed into products.

The essential sequence is:

Crude oil extraction → refining and chemical processing → polymer manufacture → product manufacture.

This explains why it is inaccurate to describe plastic as simply being drilled from the ground: crude oil is the starting material, and chemical processing produces the polymer.

Raw-material origin and manufacturing location

A material's origin and a product's manufacturing location are different pieces of information. Oil extraction, refining, polymer production and product manufacture are separate stages, so they need not happen in the same country.

For a designer, tracing these stages helps reveal the material's supply chain and the processing and transport involved. When identifying a polymer's geographical origin, be clear whether you mean where its crude-oil raw material came from or where the polymer or finished product was made.