Tribology International ( IF 6.1 ) Pub Date : 2022-10-11 , DOI: 10.1016/j.triboint.2022.107993 Somesh Patil , Kalpendra Rajurkar , Shantanu Patil , Amit Pratap
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.
中文翻译:
格尔伯特酯的合成及其在钻磨油中的应用
金属加工液 (MWF) 是制造业不可或缺的组成部分。为了提高金属操作的效率,使用了不同的添加剂。格尔伯特醇是由丁酸、月桂酸、硬脂酸等短、中、长链饱和脂肪酸酯化而成的支链化合物。在这项研究中,合成了格尔伯特酯,并研究了它们在润滑剂配方中的适用性。为了解它们的相互作用,将合成的酯与基础油 SN 150 和其他添加剂如二烷基五硫化物 (DAPS) 和氯化石蜡 (CPW) 混合。这些酯的性能特性通过磨痕直径 (WSD) 进行评估,并与商业三羟甲基丙烷三油酸酯 (TMPTO) 进行比较。由于其润滑性能和生物降解性等特性,发现这些酯适用于切削油配方。配制相同浓度的每种酯的磨削油和钻井油配方,并在 40 °C 和 100 °C 下对颜色、外观、总酸值 (TAN)、运动粘度 (KV)、粘度指数 (VI) 和WSD 进行了评估。与商业 TMPTO 酯相比,格尔伯特酯的整体性能令人满意。