Interfacial stick-slip transition in hydroxyapatite filled high density polyethylene composite

Effect of filler addition and temperature on the stick-slip transition in high density polyethylene melt was studied. Results showed that shear stresses corresponding to stick-slip transition increases with the addition of filler. Increase in temperature also increases the shear stresses for stick-s...

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Bibliographic Details
Published in:Bulletin of materials science 2006-02, Vol.29 (1), p.85-89
Main Authors: Roy, Joseph, Martyn, M. T., Tanner, K. E., Coates, P. D.
Format: Article
Language:English
Subjects:
Distortion
Extrusions
Fillers
High density
High density polyethylenes
Hydroxyapatite
Melts
Polyethylenes
Shear stress
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Summary:Effect of filler addition and temperature on the stick-slip transition in high density polyethylene melt was studied. Results showed that shear stresses corresponding to stick-slip transition increases with the addition of filler. Increase in temperature also increases the shear stresses for stick-slip transition. The features of the flow curves of composites and that of unfilled system remain identical. Filler addition lowers the shear rate at which the transition occurs. The composite extrudate did not show characteristic extrudate distortions associated with the unfilled polymer.
ISSN:0250-4707
0973-7669
DOI:10.1007/BF02709361