Effect of processing conditions on shrinkage in injection moulding

K.M.B. Jansen; D.J. van Dijk; M.H. Husselman

doi:10.1002/pen.10249

Effect of processing conditions on shrinkage in injection moulding

K.M.B. Jansen, D.J. van Dijk, M.H. Husselman

Faculty of Engineering Technology

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Abstract

A systematic study on the effect of processing conditions on mold shrinkage was undertaken for seven common thermoplastic polymers. It turned out that the holding pressure was always the key parameter. The effect of the melt temperature is slightly less important. Injection velocity and mold temperature do not show a general trend for all polymers. It was shown that at least for amorphous polymers a simple thermoelastic model could describe all experimental results. For semi-crystalline materials the model overpredicts shrinkage.

Original language	Undefined
Pages (from-to)	838-846
Journal	Polymer engineering and science
Volume	38
Issue number	5
DOIs	https://doi.org/10.1002/pen.10249
Publication status	Published - 1998

Keywords

METIS-144567
IR-71451

Access to Document

10.1002/pen.10249

Jansen98effect

Cite this

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title = "Effect of processing conditions on shrinkage in injection moulding",

abstract = "A systematic study on the effect of processing conditions on mold shrinkage was undertaken for seven common thermoplastic polymers. It turned out that the holding pressure was always the key parameter. The effect of the melt temperature is slightly less important. Injection velocity and mold temperature do not show a general trend for all polymers. It was shown that at least for amorphous polymers a simple thermoelastic model could describe all experimental results. For semi-crystalline materials the model overpredicts shrinkage.",

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AU - van Dijk, D.J.

AU - Husselman, M.H.

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AB - A systematic study on the effect of processing conditions on mold shrinkage was undertaken for seven common thermoplastic polymers. It turned out that the holding pressure was always the key parameter. The effect of the melt temperature is slightly less important. Injection velocity and mold temperature do not show a general trend for all polymers. It was shown that at least for amorphous polymers a simple thermoelastic model could describe all experimental results. For semi-crystalline materials the model overpredicts shrinkage.

KW - METIS-144567

KW - IR-71451

U2 - 10.1002/pen.10249

DO - 10.1002/pen.10249

M3 - Article

SN - 0032-3888

VL - 38

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EP - 846

JO - Polymer engineering and science

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