sábado, 20 de mayo de 2017

THE CLASSIFICATION OF PLASTIC

2 THE CLASSIFICATION OF PLASTIC.

- Thermoplastics are usually made from petroleun products. The most common thermospastic are:


  • Polyethylene terephthalate
  • High-density polyethylene
  • Polyvinyl chloride
  • Low-density polyethylene
  • Polpropylene
  • Moulded polystyrene
  • Expanded polystyrene or Styrofoam
- Thermosetting plastics are made from petroleum products. They include:

  • Polyurethane
  • Bakelite
  • Melamine
  • Polyester resins
- Typocal elastomers include rubber and neoprene.

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