10.6084/m9.figshare.5644372.v1 Erinéia da Silva Santos Erinéia da Silva Santos Ana Paula de Paula Camargo Ana Paula de Paula Camargo Edália Azevedo de Faria Edália Azevedo de Faria Francisco Adriano Ferreira de Oliveira Junior Francisco Adriano Ferreira de Oliveira Junior Salete Martins Alves Salete Martins Alves Eduardo Lins de Barros Neto Eduardo Lins de Barros Neto The Lubricity Analysis of Cutting Fluid Emulsions SciELO journals 2017 O/W emulsion Epoxidized Vegetal Oil Tribological Tests Cutting Fluid Concentration 2017-11-29 11:37:55 Dataset https://scielo.figshare.com/articles/dataset/The_Lubricity_Analysis_of_Cutting_Fluid_Emulsions/5644372 <div><p>The new generation of cutting fluids should have some characteristics, such as low toxicity and biodegradability. A bio-cutting fluid emulsion are an excellent option because they present those properties, as well as good mechanical performance. The present study aims to investigate the lubricity of O/W emulsions (cutting fluid emulsion), varying the concentration of anionic surfactant (1%, 2.5% and 5%) and epoxidized oil (5%, 10%, 15%, 20% e 25%). A sunflower oil was chemically modified by epoxidation reaction, then its viscosity, iodine and oxirane index, density, and acidity were characterized. The performances of the emulsions were evaluated using a tribometer HFRR (High Frequency Reciprocating Rig), under hydrodynamic lubrication conditions. The ball wear scars were analyzed using an optical microscopy. The results showed that a low concentration of surfactant promote friction and wear reduction. Based on the tribological performance, the emulsions with 5% and 10% of epoxidized oil are more suitable.</p></div>