Dynamic rheological properties of spotted mangrove/high-density polyethylene composites

Adebayo, Ganiyat Olusola and Hassan, Aziz and Yahya, Rosiyah and Okieimen, Felix and Sarih, Norazilawati Muhamad (2021) Dynamic rheological properties of spotted mangrove/high-density polyethylene composites. Journal of Thermoplastic Composite Materials, 34 (9). pp. 1273-1285. DOI https://doi.org/10.1177/0892705719870587.

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This study describes the viscoelastic characterizations of unmodified and heat-modified mangrove particle (MP)-filled high-density polyethylene (HDPE) composites. The untreated (unmodified) and treated (modified) MPs were compounded with HDPE matrix at 10, 20 and 30 wt% in a twin-screw extruder and compression moulded into thin sheets for rheological characterizations (amplitude and frequency sweeps). The amplitude sweeps of the dynamic rheological analysis indicated that 20 wt% treated composite has the highest linear viscoelastic region of 0.1% with the highest storage and loss modulus of 1310 and 150 kPa, respectively. The frequency sweep showed an increase in storage and loss moduli as particle loading increased. The zero shear viscosities of pure HDPE were nearly 3990 Pa center dot s, while the MP-reinforced HDPE composites were >= 185,440 Pa center dot s with treated composites exhibiting higher values.

Item Type: Article
Funders: Universiti Malaya (FG042-17AFR)
Uncontrolled Keywords: Particle-reinforced composites; Fibre-matrix bond; Stress relaxation; Rheology; Extrusion; Amplitude sweep; Frequency sweep; injection moulding
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science
Depositing User: Ms Zaharah Ramly
Date Deposited: 31 Mar 2022 03:23
Last Modified: 31 Mar 2022 03:23
URI: http://eprints.um.edu.my/id/eprint/27912

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