New formulation of metalworking fluids using emulsifiers and alkanolamines for enhanced resistance to microbial degradation
Year: 2025
Type: article
Abstract: Water-miscible metalworking fluids (MWFs), commonly used in metal forming operations, are lubricants that must be safe for direct human contact. The proper selection of materials in a new metalworking fluid, while being environmentally friendly, helps to inhibit microbial growth, reduce operational issues, extend tool life, and ultimately lower costs. A common issue with MWFs is microbial degradation by bacteria and fungi, which is facilitated by available nutrients, such as carbon, at population densities exceeding 10 6 CFU/ml. In this study, alkanolamines , oleic acid , and boric acid were evaluated for their effectiveness as antimicrobial agents. The inherent biological resistance of the MWF was assessed using an unknown biological inoculum collected from a device at Iran's Tractor Manufacturing Company, in accordance with ASTM E2275 standards. The results indicated that the new fluid, in the absence of conventional biocides , maintained its inherent biological resistance for more than five weeks.
Source: Results in Chemistry
Authors: Abdolreza Abri, Yahya Jamal Sadeghi
Institution: Azarbaijan Shahid Madani University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,870
OpenAlex ID: W4409534808