Question

what is polythene?

write the full form of LDPE and HDPE and define it


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Answer 1

Answer:

The full form of PET is Polyethylene Terephthalate.

The full form of HDPE is High Density Polyethylene.

The full form of LDPE is Low Density Polyethylene.

The full form of PP is Polypropylene.

Explanation:

Polyethylene or polythene is the most common plastic in use today. It is a polymer, primarily used for packaging. As of 2017, over 100 million tonnes of polyethylene resins are being produced annually, accounting for 34% of the total plastics market.

Formula: (C2H4)n

Melting point: 115–135 °C (239–275 °F; 388–408 K)

Density: 0.88–0.96 g/cm3

Magnetic susceptibility (χ): −9.67×10−6 (HDPE, SI, 22 °C)

Abbreviations: PE

PubChem CID: 6325