Evaluation of Stresses in a Two-Layer Co-Extruded LDPE Melt Blown Film-Reference-Cited by-同舟云学术

Evaluation of Stresses in a Two-Layer Co-Extruded LDPE Melt Blown Film

Published:2005-04 Issue:2 Volume:21 Page:127-144
ISSN:8756-0879
Container-title:Journal of Plastic Film & Sheeting
language:en
Short-container-title:Journal of Plastic Film & Sheeting

Author:

Gamache E.¹,Agassant J. -F.²,Demay Y.²,Lafleur P. G.³

Affiliation:

1. Ecole Polytechnique de Montreal, CRASP, Chemical Engineering Department, C.P. 6079, Succ. Centre-ville, Montréal, Québec, Canada H3C 3A7

2. École des Mines de Paris, CEMEF, 1, rue Claude Daunesse BP207 F-06904, Sophia Antipolis Cedex, France

3. Ecole Polytechnique de Montreal, CRASP, Chemical Engineering Department, C.P. 6079, Succ. Centre-ville, Montréal, Québec, Canada H3C 3A7,

Abstract

Despite the fast growth of co-extruded film production, little research work has been devoted to this process. Films of LDPE, ULDPE, LDPE/ULDPE and ULDPE/LDPE were produced at various processing conditions. A continuous experimental set up was used to evaluate the in-plane birefringence during bubble formation. The data collected were used to derive the axial and transverse stresses. A non-isothermal Newtonian model that allows the determination of the kinematics and dynamics of the two-layer film blowing process was then used to calculate the axial and transverse stress. Generally the calculated stresses are in agreement with the experimental values.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films

Link

http://journals.sagepub.com/doi/pdf/10.1177/8756087905057006

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