Effect of processing conditions on shrinkage in injection molding

Jansen, K.M.B. and Dijk van, D.J. and Husselman, M.H. (1998) Effect of processing conditions on shrinkage in injection molding. Polymer Engineering and Science, 38 (5). pp. 838-846. ISSN 0032-3888

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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.
Item Type:	Article
Copyright:	© 1998 Wiley InterScience
Faculty:	Engineering Technology (CTW)
Research Group:	Design, Production and Management (DPM)
Link to this item:	http://purl.utwente.nl/publications/71451
Official URL:	http://dx.doi.org/10.1002/pen.10249
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