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Open AccessArticle

Lubrication Performance of α-Zirconium Phosphates as an Anti-Wear Additive in Vegetable Oil-Based Anhydrous Calcium Grease

College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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Lubricants 2018, 6(3), 63; https://doi.org/10.3390/lubricants6030063
Received: 19 June 2018 / Revised: 6 July 2018 / Accepted: 16 July 2018 / Published: 18 July 2018
(This article belongs to the Special Issue Wear Resistant Materials)
Vegetable oil has significant potential as a base oil, and substitute for mineral oil in grease formulation due to its biodegradability, low toxicity and excellent lubrication. This paper studied the development of vegetable oil-based greases with α-Zr(HPO4)2·H2O (α-ZrP) as an additive, exploring base oil influence in tribological behavior. The results demonstrated that the addition of α-ZrP in vegetable-based greases is beneficial to anti-wear property. α-ZrP particles exhibit good performance in anti-wear, friction-reduction and load-carrying capacity, and its tribological performances are better than the normally used molybdenum disulfide and graphite additives. Owing to its superior tribological properties as a vegetable oil-based grease additive, α-ZrP holds great potential for use in environmentally friendly applications in the future. View Full-Text
Keywords: anti-wear additive; α-Zr(HPO4)·H2O; vegetable oil; anhydrous calcium grease anti-wear additive; α-Zr(HPO4)·H2O; vegetable oil; anhydrous calcium grease
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Dai, Y.; Xu, H.; Dong, J. Lubrication Performance of α-Zirconium Phosphates as an Anti-Wear Additive in Vegetable Oil-Based Anhydrous Calcium Grease. Lubricants 2018, 6, 63.

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