環境に優しい新しい潤滑油添加剤がタービン設備と水路を保護(New eco-friendly lubricant additives protect turbine equipment, waterways)

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2024-05-02 オークリッジ国立研究所(ORNL)

米国エネルギー省のオークリッジ国立研究所の科学者たちは、水力タービン装置と環境の両方を保護する潤滑油添加剤を開発しました。アメリカでは年間約2.47億ガロンの潤滑油が使用され、その約半分が環境に流出しています。研究者たちは、無毒で生分解性があり高性能な潤滑油添加剤を開発するため、イオン液体(ILs)という有機液体塩に注目しました。彼らはILsを基油に加えることで、摩擦を50%減少させ、装置の摩耗を10倍減少させることに成功しました。

<関連情報>

環境に優しい潤滑のためのイオン液体の毒性の最小化と潤滑性の最適化 Minimizing Toxicity and Optimizing Lubricity of Ionic Liquids for Eco-Friendly Lubrication

Xin He, Huimin Luo, Teresa J. Mathews, Louise Stevenson, Thomas J. Geeza, Chanaka Kumara, Harry M. Meyer III, and Jun Qu
ACS Sustainable Chemistry & Engineering  Published:March 4, 2024
DOI:https://doi.org/10.1021/acssuschemeng.3c06194

Abstract

環境に優しい新しい潤滑油添加剤がタービン設備と水路を保護(New eco-friendly lubricant additives protect turbine equipment, waterways)

As much as 60 million liters of lubricating fluids end up in the environment annually, and thus, the environmental impact of lubricants is increasingly recognized in addition to meeting the rheological and tribological requirements. Although US Environmental Protection Agency-approved environmentally acceptable base fluids are available, there is a lack of additives that are both nontoxic and effective in wear protection. This study reports the successful development of a new class of ionic liquids (ILs) with demonstrated significantly lower aquatic toxicity and superior friction reduction and wear protection capabilities compared with a commercial lubricant additive and some ILs reported in the literature. Specifically, ammonium phosphate and phosphonium phosphate ILs with four-carbon alkyls have been identified with balanced oil solubility, thermal stability, toxicity, and lubricity, which provide fundamental insights for future development of eco-friendly ILs.

0503燃料及び潤滑油
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