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Abstract

The present study investigates the fibre orientation and distribution of 15 wt-% short fibrereinforced polybutylene terephthalate using both experimentation and computer-aided analysis. Filling time, melt temperature, mould temperature and packing pressure are chosen to be the controllable parameters that govern the injection-moulding process. The influence of injectionmoulding process parameters on the frozen–intermediate–core morphology is observed using scanning electron microscopy. The variations of frozen layer thickness are strongly affected by the injection-moulding parameters. The minimum is at a filling time of 3 s, a melt temperature of 240°C, a mould temperature of 90°C, and a packing pressure of 100% of the constant 42 MPa injection pressure for the mould with dimension 45 mm x 45 mm x 4.0 mm. The experimental results are used to validate the accuracy of the computer simulation in fibre orientation and distribution. Simulated and experimental results closely correspond to each other.

Keywords

FIBRE ORIENTATION PBT INJECTION MOULDING

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Fibre orientation of fibre-reinforced PBT composites in injection moulding

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