Desenvolvimento de um tribômetro, tipo cilindro sob disco, para ensaios tribológicos em formulações com óleos vegetais

Detalhes bibliográficos
Ano de defesa: 2014
Autor(a) principal: Alves, Fernando Ribeiro [UNESP]
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual Paulista (Unesp)
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://hdl.handle.net/11449/111082
Resumo: Global warming and the environment are the most troubling issues now-a-days. Thus, many studies are being developed in order to find ways to preserve them so that future generations can enjoy the same quality of life we have today. One of the most sources of pollution are the used lubricating oils, for not being biodegradable and have a high toxicity, if discarded in the environment incorrectly, can cause serious environmental damage. With these thoughts the choice for environmentally friendly products is a concern that is part of day-to-day companies seeking sustainable development, minimizing wherever possible the environmental aggressions. In order to minimize these effects, scientists are engaged in developing new lubricants based on vegetable oils (biolubricants) having the same tribological characteristics of a mineral oil or synthetic base. For future besides reducing dependence on petroleum for the manufacture of lubricants, we are preserving the environment. With focus on this scenario, the work in question has as main objective the construction of a machine to simulate wear, for testing and tribological analyzes in vegetables oils with different types of additives in your composition in order to compare them as to their performance in the simulator. Analyzing all the oils, canola oil with 5% additive of vegetable origin presented the best performance regard to reducing of wear rate reaching 82.14% reduction. However, with the use of different additives, mineral oil obtained lower rates of wear overcoming all oils tested. The final results showed the great potential of using vegetable oil as bio-lubricants, since it found its ideal concentration of additives