Processing-induced properties in glassy polymers : development of yield stress in polycarbonate

L.E. Govaert; T.A.P. Engels; E.T.J. Klompen; G.W.M. Peters; H.E.H. Meijer

doi:10.3139/217.1870

Processing-induced properties in glassy polymers : development of yield stress in polycarbonate

L.E. Govaert, T.A.P. Engels, E.T.J. Klompen, G.W.M. Peters, H.E.H. Meijer

Polymer Technology

Research output: Contribution to journal › Article › Academic › peer-review

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11 Downloads (Pure)

Abstract

A new method is employed to directly predict the development of yield stressdistributions in injection molded products of glassy polymers. The approach isbased on the results of a study on the temperature dependence of theevolution of yield stress during annealing of polycarbonate below Tg. Incombination with the process-related thermal history, derived from numericalsimulations of the injection molding process, an estimate of the yield stressdistribution throughout a product can be obtained. Computed yield stresses ofinjection molded plates prove to be in excellent agreement with theexperimental values, including their dependence on mold temperature andplate thickness.

Original language	English
Pages (from-to)	170-177
Journal	International Polymer Processing
Volume	20
Issue number	2
DOIs	https://doi.org/10.3139/217.1870
Publication status	Published - 2005

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abstract = "A new method is employed to directly predict the development of yield stressdistributions in injection molded products of glassy polymers. The approach isbased on the results of a study on the temperature dependence of theevolution of yield stress during annealing of polycarbonate below Tg. Incombination with the process-related thermal history, derived from numericalsimulations of the injection molding process, an estimate of the yield stressdistribution throughout a product can be obtained. Computed yield stresses ofinjection molded plates prove to be in excellent agreement with theexperimental values, including their dependence on mold temperature andplate thickness.",

author = "L.E. Govaert and T.A.P. Engels and E.T.J. Klompen and G.W.M. Peters and H.E.H. Meijer",

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AU - Peters, G.W.M.

AU - Meijer, H.E.H.

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N2 - A new method is employed to directly predict the development of yield stressdistributions in injection molded products of glassy polymers. The approach isbased on the results of a study on the temperature dependence of theevolution of yield stress during annealing of polycarbonate below Tg. Incombination with the process-related thermal history, derived from numericalsimulations of the injection molding process, an estimate of the yield stressdistribution throughout a product can be obtained. Computed yield stresses ofinjection molded plates prove to be in excellent agreement with theexperimental values, including their dependence on mold temperature andplate thickness.

AB - A new method is employed to directly predict the development of yield stressdistributions in injection molded products of glassy polymers. The approach isbased on the results of a study on the temperature dependence of theevolution of yield stress during annealing of polycarbonate below Tg. Incombination with the process-related thermal history, derived from numericalsimulations of the injection molding process, an estimate of the yield stressdistribution throughout a product can be obtained. Computed yield stresses ofinjection molded plates prove to be in excellent agreement with theexperimental values, including their dependence on mold temperature andplate thickness.

U2 - 10.3139/217.1870

DO - 10.3139/217.1870

M3 - Article

VL - 20

SP - 170

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JO - International Polymer Processing

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