What is the difference between LDPE, HDPE and UHDPE?

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Audrina Marsh

Engineering

17 May, 08:19

What is the difference between LDPE, HDPE and UHDPE?

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Charlie Andrews · Answer 1

Low Density Polyethylene has the a lot of branching causing the inter molecular forces to be weak. Because of this reason it has low density. It has a density of 910.0 - 925 kg/m³.

High density polyethylene has a higher density than LDPE. It has lower level of branching causing it to have higher inter molecular forces. It has a density of 930 to 970 kg/m³.

Ultra High density polyethylene has long chains. The number of monomers per molecule is 700 and 1,800. It has a density of 928 - 941 kg/m³.