Tribological properties of bio-based lubricant basestock obtained from pequi oil (Caryocar brasiliensis)

被引：12
作者：
Flexa Ribeiro Filho, Paulo Roberto Campos [1 ,2 ]
Otaviano da Silva, Silvia Shelly [1 ]
do Nascimento, Matheus Rocha [1 ]
Soares, Sandra de Aguiar [3 ]
Tavares de Luna, Francisco Murilo [1 ]
Cavalcante Jr, Celio Loureiro [1 ]
机构：
[1] Univ Fed Ceara, Chem Engn Dept, Grp Pesquisa Separacoes Adsorcao, Nucleo Pesquisas Lubrificantes, Campus Pici,Bl 709, BR-60455900 Fortaleza, Ceara, Brazil
[2] Univ Estadual Maranhao, Mech Engn Dept, Cidade Univ Paulo 6, BR-65055310 Sao Luis, Maranhao, Brazil
[3] Univ Fed Ceara, Organ & Inorgan Chem Dept, Campus Pici,Bl 940, BR-60455900 Fortaleza, Ceara, Brazil
来源：
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING | 2022年 / 44卷 / 01期
关键词：
Tribology; Pequi oil; Bio-based lubricant; Renewable resource; VEGETABLE-OIL; BIOLUBRICANT; BIODIESEL; ESTER; DEGRADATION; EXTRACTION; POLICY; FTIR;
D O I：
10.1007/s40430-021-03358-x
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The development of basestock oil derived from renewable sources has become crucial as the world oil reserves are depleting. In this study, samples based on pequi oil (Caryocarbrasiliensis) were obtained by hydrolysis and esterification reactions, using a long-chain alcohol (2-ethylhexanol). Tribological tests in a four-ball configuration were performed to evaluate the lubricating behavior. A comparison of the Stribeck curve of the bio-based sample with that of a mineral hydrotreated basestock oil showed that the samples from pequi oil had a lower friction coefficient at all studied sliding speeds, ranging from 0 to 9.33 x 10(5 mu m)/s. The friction coefficient of the bio-based sample was 30.7% lower than that of a mineral hydrotreated basestock oil sample. The wear scar diameters were 0.371 mm for the bio-based samples and 0.195 mm for the mineral oil. This tribological performance indicates that a bio-based sample obtained from pequi oil may be potentially used as a lubricant basestock oil.
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页数：9
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