The lubricity analysis of cutting fluid emulsions

Alves, Salete Martins; Santos, Erinéia da Silva; Camargo, Ana Paula de Paula; Faria, Edália Azevedo de; Oliveira Junior, Francisco  Adriano Ferreira de; Barros Neto, Eduardo Lins de

The lubricity analysis of cutting fluid emulsions

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dc.contributor.author	Alves, Salete Martins
dc.contributor.author	Santos, Erinéia da Silva
dc.contributor.author	Camargo, Ana Paula de Paula
dc.contributor.author	Faria, Edália Azevedo de
dc.contributor.author	Oliveira Junior, Francisco Adriano Ferreira de
dc.contributor.author	Barros Neto, Eduardo Lins de
dc.date.accessioned	2020-09-23T19:53:19Z
dc.date.available	2020-09-23T19:53:19Z
dc.date.issued	2017
dc.description.resumo	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	pt_BR
dc.identifier.citation	OLIVEIRA, José Josemar de; FARIAS, Aline Cristina Mendes de; ALVES, Salete Martins. Evaluation of the biodiesel fuels lubricity using vibration signals and multiresolution analysis. Tribology International, [S.L.], v. 109, p. 104-113, maio 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0301679X16305175?via%3Dihub. Acesso em: 24 ago. 2020. http://dx.doi.org/10.1016/j.triboint.2016.12.031.	pt_BR
dc.identifier.doi	10.1590/1980-5373-mr-2016-0920
dc.identifier.issn	1516-1439
dc.identifier.issn	1980-5373
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/30189
dc.language	pt_BR	pt_BR
dc.publisher	ABM, ABC, ABPol	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	O/W emulsion,	pt_BR
dc.subject	Epoxidized Vegetal Oil	pt_BR
dc.subject	Tribological Tests	pt_BR
dc.subject	Cutting Fluid Concentration	pt_BR
dc.title	The lubricity analysis of cutting fluid emulsions	pt_BR
dc.type	article	pt_BR