Simulation of heat transfer during rotational molding Journal Articles

abstract

• AbstractIn rotational molding, polymer powders are subjected to heating, melting, cooling, and subsequent solidification in biaxially rotating molds. Heat transfer phenomena during rotational molding are significantly affected by the presence of endothermic and exothermic transitions. In this paper instead of using the traditional moving interface method, a new approach is presented which is applicable to semicrystalline materials like linear low‐density polyethylene. Melting is described by a statistical model and crystallization by a kinetic model. The model parameters are determined from differential scanning calorimetry measurements. The one‐dimensional unsteady heat conduction equation is solved by a finite difference method. The numerical predictions are in good agreement with experimental data. The overall heat transfer model can be used for process optimization purposes. © 2003 Wiley Periodicals, Inc. Adv Polym Techn 22: 271–279, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/adv.10055

authors

• Greco, A
• Maffezzoli, A
• Vlachopoulos, John

status

• published 

publication date

• December 2003

has subject area

• 0912 Materials Engineering (FoR)
• Polymers (Science Metrix)

published in

• Advances in Polymer Technology  Journal

keywords

• 34 Chemical Sciences
• 3407 Theoretical and Computational Chemistry
• 40 Engineering

Digital Object Identifier (DOI)

• 10.1002/adv.10055

start page

• 271

end page

• 279

volume

• 22

issue

• 4