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POLYETHYLENE BASSE DENSITE STRUCTURE LINEAIRE [1 record]

Record 1 1991-02-06

English

Subject field(s)
  • Chemistry
  • Plastic Materials
CONT

Recently a third group of polyethylenes, called Linear Low Density Polyethylene (LLDPE) appeared on the market, also made by a low pressure process. LLDPE is manufactured by co-polymerizing ethylene with a small amount of alpha-olefins ... which lowers the density by forming short chain side branches on the linear polymer chain.

OBS

Three main groups of polyethylene can be distinguished, namely: LPDE low density polyethylene ... ; LLPDE linear low density polyethylene ... ; HDPE high density polyethylene ....

French

Domaine(s)
  • Chimie
  • Matières plastiques
OBS

(...) on distingue les polyéthylènes basse densité (PE bd), dits encore haute pression (...) et les polyéthylènes haute densité (PE hd), dits encore basse pression (...) le PE hd est très linéaire (chaînes très peu ramifiées) alors que les chaînes de PE bd sont très ramifiées (...)

OBS

Voir la fiche "polyéthylène basse densité".

Spanish

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