The present paper deals with a study relating to the sustainability of cottonseed oil as biocompatible multipurpose green lubricants. The additive has been synthesized by treating one mole of polyol alcohol and five moles of tertiary ammonium salt at 60°C for 2 h. The synthesized additive and cottonseed oil have been evaluated for its physicochemical properties such as kinematic viscosity, viscosity index, density, acid value and copper strip corrosion. The cottonseed oil is blended with polyol deep eutectic solvents to investigate the tribo-performance behaviour. The anti-friction and anti-wear performance characteristics have been thoroughly investigated at the dosage of 2-5% concentration by additive weight, on a high temperature four ball test machine at 75°C and a pneumatic load of 392N. The results indicate that the cottonseed oil-Polyol deep eutectic solvent (PDES) formed a compatible blend and result in improving the wear properties. By preliminary studies carried out, the cottonseed oil and polyol deep eutectic solvents are found to have excellent potential for use as biodegradable lubricants and as antiwear additive respectively.

中文翻译：

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植物油作为生物相容性多用途绿色润滑油和添加剂的可持续性研究

本文涉及与棉籽油作为生物相容性多用途绿色润滑剂的可持续性有关的研究。通过在60°C下处理1摩尔多元醇和5摩尔叔铵盐2小时来合成添加剂。对合成的添加剂和棉籽油的理化性质进行了评估，例如运动粘度，粘度指数，密度，酸值和铜带腐蚀。将棉籽油与多元醇深共熔溶剂混合，以研究摩擦性能。在按添加剂重量计浓度为2％至5％的剂量下，已在75°C的高温四球试验机和392N的气动负载下，对抗磨和抗磨性能特性进行了全面研究。结果表明，棉籽油-多元醇深共熔溶剂（PDES）形成了相容的共混物，从而改善了磨损性能。通过进行的初步研究，发现棉籽油和多元醇深共熔溶剂分别具有极好的潜力，可用作生物降解性润滑剂和抗磨添加剂。