Question

How are plastics formed?

Answer 1

Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process. ... In a polymerisation reactor, monomers such as ethylene and propylene are linked together to form long polymer chains.

Answer 2

Plastics are made from raw materials like natural gas, oil or plants, which are refined into ethane and propane. Ethane and propane are then treated with heat in a process called “cracking” which turns them into ethylene and propylene. These materials are combined together to create different polymers. Hope I helped!