Thermoplastic and Thermosetting Polymers

Polymers can be classified, in terms of fusibility, into thermoplastics or thermosets (thermosets).

Thermoplastic polymers melt on heating and solidify on cooling, in a reversible process. They can also be dissolved in suitable solvents.

Examples: PET (from beverage bottles), PS (from disposable cups), LDPE (from plastic bags), PVC (from sewage pipes).

Thermosetting polymers, by heating or other treatment, assume a cross-linked, cross-linked structure, becoming infusible.

Examples: epoxy (from wind turbines), bakelite (from pot handles), and vulcanized rubber (from automotive tires).

Juliana Lucena, Dr. in Energy (UFPE), Production Engineer (USP), Professor at the Federal Network

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