Abstract
ABSTRACT The present work investigated the effect of fibre's presence on the densification of rotomoulding-grade polyethylene. Nevertheless, the presence of fibres during densification directly impacts the current understanding of how densification works during heating. The present work focuses fibre-reinforced polymer densification to study the effect of fibre addition on bubble formation during this process. A densification test was developed to observe and measure fibre addition's effect on polymer densification and bubble disappearance. The test focused on measuring the cross-section area corresponding to bubbles appearing in the melt and comparing results to clarify whether fibre addition alters this process. Results showed that, although heating parameters and particle size affect bubble morphology and disappearance, fibres’ presence does not substantially affect the bubbles. Finally, results showed that polymer-fibre characterisation plays a crucial role in sintering and densification, and work is continuing to present conclusions about how sintering and densification affect the full-scale manufacturing process.
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