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 PE
foam is mainly produced through extrusion technologies. The foams
are created by first dissolving and mixing a gas in the molten PE,
secondly expanding the gas into a lot of small bubbles or cells and
finally cooling the expanded PE and thereby creating the final foam.
The foam can be shaped in different semi-finished products such as
tubes, profiles, sheets and blocks. The expansion results in a
substantial reduction of the polyethylene density.
Low Density PolyEthylene (LDPE) as the raw material for these
foam has typically a specific density of 920 kg/m3. On the other
hand the average density of PE foams is 30 kg/m3. This weight
reduction is obtained by expanding the PE approximately 30 times.
But it is not only the weight that is changed during the foam
process. The new properties that are gained by the PE in its foamed
state are jointly responsible for the many applications of this
product.
PolyEthylene Foam production
PolyEthylene Applications PolyEthylene Grades
PolyEthylene Foam market
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