A comparative investigation on wear characteristics of polymer and biopolymer gears
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Wafiuddin Md. Ghazali
Abstract
Plastic gear applications are rapidly increasing in transmission systems in automotive, domestic and kitchen machineries. Biopolymer gears are now being preferred over polymer gears due to its biodegradable properties. Hence, a comparative investigation of wear characteristics between polymer and biopolymer gears is studied. Injection molded biopolymer, PLA (polylactic acid) gear and polymer, ABS (acrylonitrile butadiene styrene) gear have been fabricated with appropriate properties. Gears are experimentally tested for the period of 3 h at three different rotational speeds (500, 1000 & 1500 rpm) with and without load (1 kg). Wear debris, material loss, thermal damage and microstructure surface condition monitoring have been investigated. PLA presents better adhesive wear resistance and shows thermal deformation and tooth breakage. Biopolymer gives better thermal and wear resistance than polymer gear. At low rotational speed of 500 rpm under no-loading condition, both PLA and ABS show higher weight loss and wear rate due to thermal damage occurred due to gear pump effect. Whereas when load is applied, PLA shows wear loss at all rotational speeds due to inferior thermal conductivity and ABS shows wear loss at high rotational speeds of 1000 rpm or 1500 rpm due to loading effect.
Funding source: Fundamental Research Grant Scheme (FRGS)
Award Identifier / Grant number: FRGS/1/2016/TK03/UMP/02/21
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The authors would like to thank the Ministry of Higher Education Malaysia for providing financial support under Fundamental Research Grant Scheme (FRGS) No. FRGS/1/2016/TK03/UMP/02/21 (University reference RDU160139) and Universiti Malaysia Pahang for laboratory facilities as well as additional financial support under Internal Research grant RDU141112.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Material properties
- Effect of nanodiamond particles on the structure, mechanical, and thermal properties of polymer embedded ND/PMMA composites
- A comparative investigation on wear characteristics of polymer and biopolymer gears
- Unsaturated polyester resin modified with a novel reactive flame retardant: effects on thermal stability and flammability
- Recent progress on the morphology and thermal cycle of phase change materials (PCMs)/conductive filler composites: a mini review
- Effect of tiny amount of DMC on thermal, mechanical, optical, and water resistance properties of poly(vinyl alcohol)
- Vibration and tribological properties of epoxy-granite composites used as novel foundations for machine elements
- Effect of lyocell fiber cross-sectional shape on structure and properties of lyocell/PLA composites
- Engineering and processing
- Quality prediction and control of thin-walled shell injection molding based on GWO-PSO, ACO-BP, and NSGA-II
- Doubly modified MWCNTs embedded in polyethersulfone (PES) ultrafiltration membrane and its anti-fouling performance
- Solid-state extrusion of polymers using simple shear deformation
- Molding process and properties of polyimide-fiber-fabric-reinforced polyether ether ketone composites
