Tribological Properties of Polyvinyl Alcohol/Uncaria Gambir Extract Composite as Potential Green Protective Film

Dieter Rahmadiawan; Hairul Abral; Shih-Chen Shi; Tzu-Teng Huang; Rahadian Zainul; Ambiyar; Hendri Nurdin

doi:10.24874/ti.1482.05.23.06

Tribology in Industry (Jun 2023)

Tribological Properties of Polyvinyl Alcohol/Uncaria Gambir Extract Composite as Potential Green Protective Film

Dieter Rahmadiawan,
Hairul Abral,
Shih-Chen Shi,
Tzu-Teng Huang,
Rahadian Zainul,
Ambiyar,
Hendri Nurdin

Affiliations

Dieter Rahmadiawan: ORCiD; Department of Mechanical Engineering, Universitas Negeri Padang, 25173 Padang, Sumatera Barat, Indonesia
Hairul Abral: ORCiD; Laboratory of Nanoscience and Technology, Department of Mechanical Engineering, Andalas University, 25163 Padang, Sumatera Barat, Indonesia; Research Collaboration Center for Nanocellulose, BRIN-Andalas University, Padang 25163, Indonesia
Shih-Chen Shi: ORCiD; Department of Mechanical Engineering, National Cheng Kung University (NCKU), Tainan, Taiwan
Tzu-Teng Huang: ORCiD; Department of Mechanical Engineering, National Cheng Kung University (NCKU), Tainan, Taiwan
Rahadian Zainul: ORCiD; Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, West Sumatera 25171, Indonesia
Ambiyar: ORCiD; Department of Mechanical Engineering, Universitas Negeri Padang, 25173 Padang, Sumatera Barat, Indonesia
Hendri Nurdin: ORCiD; Department of Mechanical Engineering, Universitas Negeri Padang, 25173 Padang, Sumatera Barat, Indonesia

DOI: https://doi.org/10.24874/ti.1482.05.23.06
Journal volume & issue: Vol. 45, no. 2
pp. 367 – 374

Abstract

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Polyvinyl Alcohol/Uncaria Gambir Extract (PVA/UG) composite provides good UV light protection and antibacterial, tensile, and thermal properties. To continue our previous research, the tribological properties of PVA, PVA/BA, PVA/UG, and PVA/UG with heat treatment (PVA/UGt) were conducted. The ball-on-disk test results show COF reduced by 42% in PVA/UG compared to PVA. It was proved that heating the PVA/UG significantly improves the tribological properties of the PVA composite, resulting lowest COF (0.08) and wear area (390 µm2). Additionally, incorporating UG also increases the hardness of the PVA composite by up to 73% and. These results corroborate the application of this composite as a potential green protective film.

Published in Tribology in Industry

ISSN: 0354-8996 (Print); 2217-7965 (Online)
Publisher: University of Kragujevac
Country of publisher: Serbia
LCC subjects: Technology: Mechanical engineering and machinery
Website: http://www.tribology.fink.rs/

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