The injection moulding process is a major fabricating technique used in both the plastics and rubber industries. The quality of the coloured polyolefin products produced by the injection moulding technique depend, at least in part, on the mixing process associated with the plasticating screw. The aim of the research programme reported in this thesis was therefore to investigate two main areas: (1) the effect of moulding conditions on the mixture quality of injection moulded articles; and (2) the suitability of the computerised image analysis technique for characterising pigmented mixtures. [Continues.]
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of the degree of Doctor of Philosophy at Loughborough University.