Page 48 - eBook_Proceedings of the International Conference on Digital Manufacturing V1

Proceedings of the International Conference on Digital Manufacturing –
Volume 1

The experimentally observed mechanical superiority at an
optimal melting temperature (150°C) reinforces the critical
relationship between controlled thermal processing conditions and
material performance, which aligns well with previous studies
(Wang, Liu & Zhang, 2018; Vidakis, Petousis, Maniadi &
Kechagias, 2021). The synergy between computational and
experimental results provides substantial confidence in the
suitability of recycled HDPE for structural applications.

Interpretation and Practical Implications

The evidence presented underscores the mechanical robustness
and structural reliability of recycled HDPE when effectively
integrated into ergonomic furniture designs. The demonstrated
minimal stress and displacement under standard and higher-than-
average loading conditions underscore the viability of recycled
HDPE in sustainable furniture manufacturing. This corroborates
the conclusions by (Bolong, Saad, Asman, Heng & Roslan, 2024;
Sharif & Aslam, 2023), who emphasised that strategic
optimisation of design and materials significantly enhances the
performance of recycled polymer-based products.

From a sustainability perspective, utilising recycled HDPE in
structural and ergonomic seating represents a meaningful
contribution toward circular economy practices. The successful
demonstration of structural performance and durability of
recycled HDPE seating designs not only helps in waste reduction,
but also paves the way for broader adoption of recycled materials
within the furniture industry, thus aligning with global
sustainability goals (Bolong, Saad, Asman, Heng & Roslan, 2024;
Kansal, Alzubaidi & Das, 2024).

Furthermore, these findings offer valuable insights into
potential design improvements, such as targeted material
reinforcement at critical stress points, material usage optimisation,
and more efficient processing conditions, as similarly advocated
in recent studies (Wang, Liu & Zhang, 2018).

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