Question

polythene is a dash of Ethylene

Answer 1

Poly(ethene) (Polyethylene)

Well over 80 million tonnes of poly(ethene), often known as polyethylene and polythene, is manufactured each year making it the world's most important plastic.  This accounts for over 60% of the ethene manufactured each year.

 

Uses of poly(ethene) (polyethylene)

Poly(ethene) is produced in three main forms: low density (LDPE) (< 0.930 g cm-3) and linear low density ( LLDPE) (ca 0.915-0.940 g cm-3) and high density (HDPE) (ca0.940-0.965 g cm-3).

The LDPE or LLDPE form is preferred for film packaging and for electrical insulation.  HDPE is blow-moulded to make containers for household chemicals such as washing-up liquids and drums for industrial packaging. It is also extruded as piping.

Answer 2

polymer

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