Abstract
The semi-crystalline polymer TPX has been injection moulded into standard tensile bars using a range of barrel temperatures, mould temperatures and injection pressures. Acid etching, microhardness testing and selected volume X-ray pole figures were used to characterize the changes in microstructure and crystalline texture which occurred throughout the range of mouldings. A strong correlation was shown to exist between microstructure and crystalline texture and processing conditions. Three-point bend tests on the injection moulded bars indicated that a ductile-to-brittle transition in failure mode could be induced by changing the moulding conditions, and that this change could be correlated with microstructural and dimensional changes.
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Bowman, J., Harris, N. & Bevis, M. An investigation of the relationships between processing conditions, microstructure and mechanical properties of an injection moulded semi-crystalline thermoplastic. J Mater Sci 10, 63–76 (1975). https://doi.org/10.1007/BF00541032
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DOI: https://doi.org/10.1007/BF00541032