Results 21 to 30 of about 7,538 (194)
Tribology Online, 2017 This study evaluated the potential use of three polyol esters (POEs) derived from palm oil as a lubricant in bentonite suspension drilling fluid. Three different POEs were investigated, which are pentaerythritol ester (PEE), trimethylolpropane ester ...
Dina Kania +4 more
doaj +1 more source
Comparison of Polyol Ester and Mineral Oil under Thermal Aging
Andalasian International Journal of Applied Science, Engineering, and TechnologyInsulating oil was historically dominated by mineral oil due to its cost-effectiveness and good properties. However, the limitations of mineral oil, particularly its availability and environmental concerns, present significant long-term operational risks.
Abdul Rajab +5 more
doaj +1 more source
Marine Drugs, 2020 Red yeasts of the genus Rhodotorula are of great interest to the biotechnological industry due to their ability to produce valuable natural products, such as lipids and carotenoids with potential applications as surfactants, food additives, and ...
Larissa Buedenbender +4 more
doaj +1 more source
Non-flammable elastomeric fiber from a fluorinated elastomer and containing an halogenated flame retardant [PDF]
, 1976 Flame retardant elastomeric compositions are described comprised of either spandex type polyurethane having incorporated into the polymer chain halogen containing polyols, conventional spandex type polyurethanes in physical admixture with flame retardant
Howarth, J. T. +3 more
core +1 more source
Recent Advances in Homogeneous Metal-Catalyzed Aerobic C–H Oxidation of Benzylic Compounds [PDF]
, 2018 Csp(3)-H oxidation of benzylic methylene compounds is an established strategy for the synthesis of aromatic ketones, esters, and amides. The need for more sustainable oxidizers has encouraged researchers to explore the use of molecular oxygen.
Domínguez Pérez, Pilar Esther +3 more
core +3 more sources
Dentistry Journal, 2020 Peroxides present in oral healthcare products generally exert favourable protective activities against the development and progression of tooth decay, plaque, gingivitis, and halitosis, etc.
Martin Grootveld +8 more
doaj +1 more source
Aspects of the behavior of some pentaerythritol ester base synlubes for turbo-engines
Egyptian Journal of Petroleum, 2013 In this work a series of pentaerythritol esters have been synthesized. Dean Stark apparatus has been used to measure the water separated periodically as one of the resultants giving an indication about reaction progress. Elementary analyses, mean average
I.A. El-Magly, H.K. Nagib, W.M. Mokhtar
doaj +1 more source
Flame retardant spandex type polyurethanes [PDF]
, 1978 Flame retardant elastomeric compositions were developed, comprised of: (1) spandex type polyurethane having incorporated into the polymer chain, halogen containing polyols; (2) conventional spandex type polyurethanes in physical admixture flame retardant
Howarth, J. T. +3 more
core +1 more source
Flexible Transparent Conductive Film Based on Random Networks of Silver Nanowires
Micromachines, 2018 We synthesized silver nanowires (AgNWs) with a mean diameter of about 120 nm and 20–70 μm in length using a polyol process. The flexible transparent conductive AgNWs films were prepared using the vacuum filtration-transferring process, in which ...
Hui Xie +4 more
doaj +1 more source
Aliphatic polyester polymer stars: synthesis, properties and applications in biomedicine and nanotechnology [PDF]
, 2011 : A critical review: the ring-opening polymerization of cyclic esters provides access to an array of biodegradable, bioassimilable and renewable polymeric materials.
Cameron, Donald J. A. +1 more
core +1 more source