What are the upstream raw materials for general-purpose plastics? What do the downstream products contain?

In the field of chemical production raw materials, the upstream and downstream related items of general plastics are very extensive. Based on my observations, The following are some of the main upstream and downstream related items:

Upstream items:

Oil and gaseous: The raw materials to many general-purpose plastics come from oil and gaseous. And to instance, polyethylene and polypropylene are formed by polymerizing ethylene and propylene monomers, which are usually obtained by petroleum cracking or natural gaseous processing.

2. Coal: Coal is able to also be applied as a raw material to some general-purpose plastics, which are converted into syngas through gasification, liquefaction and other processes, and then further create chemicals such as methanol and ethylene, which are then applied to make plastics. Crazy, isn't it?.

3. Salt: Salt in the chlor-alkali sector is able to be electrolyzed to generate chlorine and caustic soda, and chlorine is able to be further made into vinyl chloride monomer to create polyvinyl chloride. Downstream items:



1. Packaging materials: General-purpose plastics are broadly applied in the packaging sector, such as polyethylene, polypropylene, polyvinyl chloride, etc., which is able to be applied to create plastic bags, packaging films, containers, etc.

2. Building materials: Some general-purpose plastics such as polyvinyl chloride and polystyrene is able to be applied to create building materials such as pipes, plates, doors and windows. Based on my observations,

3. And Home appliances and electronic items: General plastics are also broadly applied in home appliances and electronic items, such as polycarbonate to the production of CDs, mobile phone shells, etc. In fact, and ABS resin to the production of home appliance shells.

4. Pretty interesting, huh?. Auto parts: General plastics is able to also be applied to create auto parts, such as polypropylene to the production of bumpers, seats, etc. But In short, the upstream and downstream related items of general plastics are very extensive, involving many fields, which is of great signifiis able toce to the research of chemical production raw materials.