Interrelations between processing, orientation and shrinkage in low density polyethylene blown films. III. Orientation of the amorphous phase. [Etude des relations entre mise en forme, orientation et retraction dans des films de polyethylene basse densite realises par soufflage de gaine III. Orientation de la phase amorphe]

Jean-Marc Haudin (1) , Alain Piana (1, 2) , Bernard Monasse (1) , B. Gourdon (3)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 BP Chemicals - United Kingdom
3 Elf-Atochem

In this third paper, the orientation of the amorphous phase is deduced from birefringence measurements and from the orientation of the crystalline phase. The amorphous chains tend to be oriented along the transverse direction DT. Consequently, the average orientation of the chains is also, in general, along DT.

Domaines: Matériaux

Jean-Marc Haudin, Alain Piana, Bernard Monasse, B. Gourdon. Interrelations between processing, orientation and shrinkage in low density polyethylene blown films. III. Orientation of the amorphous phase. [Etude des relations entre mise en forme, orientation et retraction dans des films de polyethylene basse densite realises par soufflage de gaine III. Orientation de la phase amorphe]. Annales de Chimie - Science des Matériaux, 2000, 25 (1), p.53-64. ⟨10.1016/S0151-9107(00)88625-0⟩. ⟨hal-00538228⟩