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The types available

The  mechanism  of  plastics
Plastics  in  Daily  Life
What  kinds  of  plastics  are  there?

Plastics are roughly divided into thermoplastic resins and thermosetting resins. Both types become soft when heated, but they differ in their behavior after they cool to a solid. While thermoplastic resins become soft again when heated once more, thermosetting resins do not change their form any more even if they are heated again. The reason why a plastic cup placed inadvertently near the fire becomes deformed is that it is made of a thermoplastic resin. Handles of frying pans and knobs of pot lids are made of thermosetting resins. Because these resins have good electrical characteristics, they were used for switches and sockets of electric lamps. However, because of their poor productivity, they have been replaced gradually by thermoplastic resins. Today, thermoplastic resins make up nearly 90% of these electrical components. Thermoplastic resins are further divided into "general-purpose plastics" and high-performance "engineering plastics" Thermoplastic resins are divided into crystalline and noncrystalline resins.

Thermoplastic resins Crystalline polymers
Thermoplastic resins Engineering plastics
General-purpose plastics