Thermoplastic

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Thermoplastic

Thermoplastic (/θɜːrmoʊˈplæstɪk/), derived from the Greek words 'thermos' meaning heat and 'plastikos' meaning fit for molding, is a type of polymer that becomes pliable or moldable at a certain elevated temperature and solidifies upon cooling.

Etymology

The term 'thermoplastic' is derived from the Greek words 'thermos' meaning heat and 'plastikos' meaning fit for molding. This refers to the property of these materials to become pliable or moldable at certain temperatures and solidify upon cooling.

Properties

Thermoplastics are characterized by their ability to withstand repeated heating and cooling cycles. They are high molecular weight polymers whose chains associate through weak Van der Waals forces (polyethylene); stronger dipole-dipole interactions and hydrogen bonding (nylon); or even stacking of aromatic rings (polystyrene).

Types

There are various types of thermoplastics, including:

  • Polyethylene: A common type of thermoplastic that is used in a variety of applications, including packaging and insulation.
  • Polypropylene: Another common thermoplastic that is often used in packaging, textiles, and automotive parts.
  • Polystyrene: A thermoplastic that is often used in disposable cutlery, CD and DVD cases, and plastic models.
  • Polyvinyl chloride (PVC): A type of thermoplastic that is commonly used in construction, clothing, and furniture.

Applications

Thermoplastics are used in a wide range of applications due to their versatile properties. They are commonly used in packaging, automotive parts, medical devices, and consumer products. They are also used in the manufacturing of electrical insulation, pipes, and window frames.

See Also

External links

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