CHAPTER I
LITTERATURE REVIEW
15
Polyethylene (PE)
Polypropylene (PP)
Polyvinyl-chloride (PVC)
Polyethylene Terephthalate (PET)
Polystyrene (PS)
Expanded polystyrene (EPS)
Polyamides (PA)
Polycarbonate (PC)
Poly methyl methacrylate (PMMA)
Thermoplastic elastomers (TPE)
Polyarylsulfone (PSU)
Fluoropolymers, etc.
1.3.2 Thermosets
Thermosets are a group of plastics that experience a chemical transformation upon heating,
forming a three-dimensional network structure. Once heated and molded, these plastics cannot
be remelted and reformed. Examples of such plastics include (PlasticsEurope, 2020):
Polyurethane (PUR)
Unsaturated polyesters
Epoxy resins
Melamine resins
Vinyl esters
Silicone
Phenol - formaldehyde resins
Urea - formaldehyde resins
Phenolic resins
Acrylic resins, etc.