Results 61 to 70 of about 681 (167)
Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst
Biofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1587-1595, May/June 2026.Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley +1 more source
Results in ChemistryWater-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
Abdolreza Abri, Yahya Jamal Sadeghi
doaj +1 more source
Ways to improve biocides for metalworking fluid
AIMS Microbiology, 2021 Metalworking fluids (MWF) are mainly emulsions of oil in water containing additives such as corrosion inhibitors, emulsifiers, defoamers, and biocides. Microbial contamination of MWF is almost systematic, and some of their constituents serve as nutrients for contaminating microorganisms.
openaire +4 more sources
Synthesis of Plant-Based Ester for Metalworking Fluids and Tribological Performance
Düzce Üniversitesi Bilim ve Teknoloji DergisiLubricants derived from plant-based raw materials offer great potential for the development of environmentally friendly and renewable esters due to their easier and faster biodegradability, reducing dependence on petrochemical raw materials and creating ...
Ertuğrul Kaya
doaj +1 more source
Study and Comparison of Lubricity of Green and Commercial Cutting Fluid Using Tool-Chip Tribometer
Tribology Online, 2018 A lubricant is a substance introduced between surfaces in mutual contact to reduce friction, which ultimately reduces the heat generated when the surfaces move. Liquid lubricant, designed specifically for metalworking processes, such as turning, drilling,
Suvin Parayantayyathu Somarajan +1 more
doaj +1 more source
Exposure to Metalworking Fluids and Cancer Incidence in the United Auto Workers-General Motors Cohort. [PDF]
Am J Epidemiol, 2023 Colbeth HL +4 more
europepmc +1 more source
PLoS ONE, 2019 Metalworking fluids (MWF) are water- or oil-based liquids to cool and lubricate tools, work pieces and machines, inhibit corrosion and remove swarf. One of the major problems in the MWF industry is bacterial growth as bacterial enzymes can cause MWF ...
Donna Vanhauteghem +5 more
doaj +1 more source
Simultaneous Determination of Droplet Size, pH Value and Concentration to Evaluate the Aging Behavior of Metalworking Fluids. [PDF]
Sensors (Basel), 2021 Wahrendorff P +8 more
europepmc +1 more source
Metalworking Fluids—Clearing Away the Mist? [PDF]
The Annals of Occupational Hygiene, 2005 Metalworking fluid emulsion formulations produced from vegetable oils may be less toxic and may reduce disposal costs when compared with fluids formulated with petroleum-based oils. Experiments were performed on experimental emulsions made with unmodified and modified soybean oils to measure rates of mist production by impaction, centrifugal force and ...
openaire +2 more sources
International Journal of Occupational Medicine and Environmental Health, 2016 Objectives: The aim of this study was to assess exposure to airborne endotoxins and peptidoglycans (PGs) as well as possibility of using PGs as a surrogate measure of bacterial exposure in workplaces in a metal processing plant.
Marcin Cyprowski +2 more
doaj +1 more source