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Achieving the good thermal-stability and lubricity via a dihydroxy biolubricant from the agro-waste of Codonopsis pilosula

Author

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  • Xie, Min
  • Xu, Daqian
  • Shen, Juanjuan
  • Zhang, Chunyun

Abstract

The bio-lubricant from the agro-waste resource is a promising substitute to the petroleum-based lubricants, which conforms to waste utilization and sustainable development. In this work, a high performance biolubricant was obtained by dihydroxylation modifying the extract from the abandon aerial parts of Codonopsis pilosula. This biolubricant exhibits high resistance to thermal decomposition till 298.8 °C and excellent lubricity within the temperature range of 50–250 °C, characterized by the low friction coefficients of 0.108–0.129 and wear rates of 10−8-10−7 mm3/Nm. These excellent properties are superior and comparable to other biolubricant and mineral oils, resulting from the high adsorption ability of diol onto the solid frictional interfaces that forms a thick lubricity carbon film demonstrated by the transmission electron microscope. Due to the excellent thermal-stability and wide temperature lubricity, this biolubricant can be applied in the open mechanical systems like chainsaw and metal machining in agricultural and manufacturer industries.

Suggested Citation

  • Xie, Min & Xu, Daqian & Shen, Juanjuan & Zhang, Chunyun, 2024. "Achieving the good thermal-stability and lubricity via a dihydroxy biolubricant from the agro-waste of Codonopsis pilosula," Renewable Energy, Elsevier, vol. 221(C).
    • Handle: RePEc:eee:renene:v:221:y:2024:i:c:s0960148123017822
    DOI: 10.1016/j.renene.2023.119867
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