Synthesis of guerbet esters and its application in drilling and grinding oil

Metalworking fluids (MWFs) are an inevitable component of the manufacturing industry. To enhance the efficiency of metal operations, different additives are used. Guerbet alcohol is a branched compound esterified with saturated fatty acids of short, medium and long chains such as butyric acid, lauri...

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Bibliographic Details
Published in:Tribology international 2023-01, Vol.177, p.107993, Article 107993
Main Authors: Patil, Somesh, Rajurkar, Kalpendra, Patil, Shantanu, Pratap, Amit
Format: Article
Language:English
Subjects:
Drilling oil
Grinding oil
Guerbet esters
Lubricants
Metal Working fluids
TMPTO
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Summary:Metalworking fluids (MWFs) are an inevitable component of the manufacturing industry. To enhance the efficiency of metal operations, different additives are used. Guerbet alcohol is a branched compound esterified with saturated fatty acids of short, medium and long chains such as butyric acid, lauric acid and stearic acid respectively. In this study, guerbet esters were synthesized and their applicability in lubricant formulations was studied. To understand their interaction, the synthesized esters were blended with a base oil SN 150 and other additives such as Dialkyl Pentasulfide (DAPS) and chlorinated paraffin wax (CPW). The performance properties of these esters were evaluated by wear scar diameter (WSD) and compared with commercial Trimethylolpropane Trioleate (TMPTO). The esters were found to be suitable for cutting oil formulations due to their characteristics like lubricating properties and biodegradability. Grinding oil and Drilling Oil formulations of each ester with the same concentration were formulated and the properties like colour, appearance, total acid number (TAN), kinematic viscosities (KV) at 40 °C and 100 °C, viscosity index (VI) and WSD were evaluated. Overall performance of guerbet esters was found to be satisfactory when compared to the commercial TMPTO esters. [Display omitted] •Guerbet esters of different carbon chain length of fatty acid were synthesized.•Physiochemical properties of synthesized guerbet esters were evaluated.•Grinding oil and Drilling oils were formulated using guerbet esters.•Applicability of synthesized guerbet esters as anti-wear additive was studied.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2022.107993