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Blowing of oriented PET bottles: Predictions of free blown size and shape
Author(s) -
Erwin Lewis,
Pollock Mark A.,
Gonzalez Henry
Publication year - 1983
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760231507
Subject(s) - materials science , polyethylene terephthalate , composite material , natural rubber , blow molding , polyethylene , constitutive equation , blowing agent , mechanics , polymer science , thermodynamics , physics , polyurethane , mold , finite element method
A model of the blowing process for polyethylene terephthalate stretch blowmolded bottles is presented. This model uses a rubber constitutive relation. The free blown diameter and the stretch balance are derived from stress equilibrium. Free blow experiments show good agreement with the predictions.