Razak, Jeefferie Abd., Wahid, siti zaleha, Mohamad, Noraiham, Puspitasari, Poppy, Jaafar, Rosidah and Tutuko, Pindo ORCID: https://orcid.org/0000-0001-6517-3314 (2021) The Effects of r-HDPE/r-PP Formulation Ratio Into Mechanical, Thermal and Morphological Behavior of r-HDPE/r-PP Polymeric Blends. Journal of Engineering and Management in Industrial System, 6 (3). pp. 1-9. ISSN P-ISSN 2338-3925, E-ISSN 2477-6025

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Preview	Text 27. PEER REVIEW_THE EFFECTS OF r-HDPE r-PP FORMULATION RATIO INTO MECHANICAL THERMAL AND MORPHOLOGICAL BEHAVIOR OF r-HDPE r-PP POLYMERIC BLENDS.pdf Download (2MB) | Preview
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Abstract

This study has reported the effects of different formulation ratio between recycled high
density polyethylene (r HDPE) and recycled polypropyl ene (r PP) into the resulted mechanical,
thermal and morphological properties of r HDPE/r PP polymeric blends. About five (5) different
formulation ratio of r HDPE/r PP have been prepared and tested. The best combination ratio
between r HDPE and r PP was d etermined in this work. It was found that the 70/30 wt.% of r
HDPE/r PP blend possessed an outstanding mechanical and physical strength. About 59.80% and
2.30% of positive improvement in comparison to 0/100 wt.% of r HDPE/r PP was achieved for
both of tens ile strength and hardness, respectively. Interestingly, for 70/30 wt.% of r HDPE/r PP
blend had also experienced major increased in their elongation at break up to 473%. The fracture
morphological behavior of the tested samples that were observed via SEM o bservation, had
established the interaction between the structure and properties of produced r HDPE/r PP blends, especially on the miscibility state between the r HDPE and r PP phases. Thermal evaluation by
using the DSC had confirmed the partial miscibili ty state due to dominant peak shifting at 120
140°C and obvious melting peak reduction pattern. Overall, from this study, it was found that the
blending between r HDPE and r PP into r HDPE/r PP blends are feasible to improve the
properties of primary pha se.

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