Characteristics, Manufacturing, and Testing Methods of Polymer Gears: Review

Marković, Ana; Ivanović, Lozica; Stojanović, Blaža

doi:10.1007/978-3-031-51494-4_23

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…In view of the lower processing temperature, as well as the flexible shape manufacturing of polymeric materials, polymeric materials had numerous advantages of production, such as lower energy consumption and costs than metallic materials, which has been widely favored in the industrial field [7,8]. Some polymeric materials demonstrate low friction noise, self-lubrication, and transfer filmforming mechanisms, which are considerable prospects to be adopted in the tribological industrial field, such as to gears, bearings, and seals [9,10]. However, the neat polymeric matrix generally presents inferior mechanical properties and load-bearing properties.…”

Section: Introductionmentioning

confidence: 99%

Improved Tribological Performance of a Polybutylene Terephthalate Hybrid Composite by Adding a Siloxane-Based Internal Lubricant

Zhao,

Merz,

Emrich

et al. 2024

Lubricants

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To mitigate the environmental hazards aroused by fossil-based lubricants, the development of eco-friendly internal lubricants is imperative. Siloxane-based internal lubricants, widely applied as plasticizers in polymeric compounds, are a promising option. However, their impacts on the tribological properties of polymeric tribocomponents are still unclarified. Therefore, in the current study, a siloxane-based internal lubricant with the product name ‘EverGlide MB 1550 (EG)’ was dispersed into a polybutylene terephthalate (PBT)-based tribological composite to investigate whether the tribological properties of the composite can be optimized. A block-on-ring (BOR) test configuration was used for this purpose. It was found that the addition of EG to the composite significantly improved the tribological behavior; the improvement was particularly significant under lower load conditions (pv-product ≤ 2 MPa∙m/s). Compared to the reference PBT composite, the addition of EG reduced the friction coefficient (COF) by about 30% and the specific wear rate by about 14%. An accompanying surface analytical investigation using photoelectron spectroscopy to elucidate the effective mechanisms at the molecular level showed the availability of tribologically effective and free EG after its addition to the composite in the relevant tribocontact.

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