Results 161 to 170 of about 2,759 (198)
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Adsorption Behavior of Trimethylolpropane‐Dehydroabietic Acid Ester at the Air–water Interface
Journal of Surfactants and Detergents, 2016AbstractA novel amphipathic trimethylolpropane‐dehydroabietic acid ester was successfully prepared with acyl chloride method. Various analytical techniques such as liquid chromatography–mass spectrometry, Fourier transform infrared spectrometry, proton and carbon nuclear magnetic resonance spectroscopy were employed to evaluate the chemical structure ...
Juying Zhou +7 more
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Synthesis of Trimethylolpropane Esters by Base‐Catalyzed Transesterification
European Journal of Lipid Science and Technology, 2020AbstractTrimethylolpropane (TMP) esters are synthesized from fatty acid methyl esters (FAMEs) and TMP to produce a fluid with properties suitable for use as a lubricant base oil, exhibiting good stability, and low‐temperature performances. In this study, triacylglyceride (TAG) molecules are modified to produce FAME and then linked to TMP.
Jieyu Nie +4 more
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IEEE Transactions on Dielectrics and Electrical Insulation, 2023
Zijian Yang +7 more
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Zijian Yang +7 more
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The kinetics of epoxidation of trimethylolpropane ester
European Journal of Lipid Science and Technology, 2012AbstractKinetics pertaining epoxidation reaction of a palm oil‐based synthetic lubricant trimethylolpropane (TMP) ester were investigated. The epoxidation reaction of TMP ester was carried out utilizing peracetic acid generated by an in situ technique. The analysis of the reaction kinetics was performed within the low temperature (30, 50, and 60°C) and
Ferra Naidir +5 more
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Esters of oxypropylated trimethylolpropanes as synthetic lubricants
Industrial Lubrication and Tribology, 2007PurposeThe paper aims to study the effects of introducing oxypropyl segments into the trimethylolpropane (TMP) esters along with lowering the linear chain length from C5‐C9 to C5‐C6 on the properties of base lubricants.Design/methodology/approachVarious amounts of oxypropylene segments were introduced into the TMP skeleton and obtained polyols ...
Firdovsi Tataroglu Sejidov +1 more
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Synthesis and Optimization of Trimethylolpropane Rapeseed Oil Ester
Advanced Materials Research, 2014Lubricant base oil is an environmentally friendly lubricant with good lubricity and biodegradability. The thermostability and stability of rapeseed oil get improved through chemical modification. Fatty acid methyl ester (FAME),prepared by rapeseed oil as starting material with methanol by transesterification,the composition of FAME was detected by gas ...
Ying Wang, Cun Zhou, Guo Zheng, Yu Sun
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Synthesis of Trimethylolpropane Esters as Potential Insulating Oil Base Stocks
2019 IEEE 20th International Conference on Dielectric Liquids (ICDL), 2019The trimethylolpropane esters (TME) based high performance electrical insulating oil was synthesized by esterification of the mixture of C 6 , C 8 and C 10 acids blend with trimethylolpropane (TMP). The electrical performance is significantly improved by a purpose-oriented purification process which is structured by washing with ultrapure water and ...
Feipeng Wang +5 more
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Journal of the Air & Waste Management Association, 2020
In this study, an eco-friendly renewable biodegradable alternative to petroleum-based oil lubricants was produced using espresso coffee wastes. Waste coffee oil used as raw material was extracted from Espresso coffee wastes by Soxhlet and conventional solvent extraction. Free fatty acids (FFA) were obtained by hydrolysis of the obtained waste oil using
Gurkaya Kutluk, BAHAR +3 more
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In this study, an eco-friendly renewable biodegradable alternative to petroleum-based oil lubricants was produced using espresso coffee wastes. Waste coffee oil used as raw material was extracted from Espresso coffee wastes by Soxhlet and conventional solvent extraction. Free fatty acids (FFA) were obtained by hydrolysis of the obtained waste oil using
Gurkaya Kutluk, BAHAR +3 more
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Applied Science and Engineering Progress, 2021
Epoxidized Jatropha curcas-based trimethylolpropane triester (ETMPJO) was prepared by the in-situ epoxidation reaction of trimethylolpropane ester (TMPJO) catalyzed by hydrogen peroxide (H2O2) in the presence of formic acid. The epoxidation process was optimized through the variable parameters such as hydrogen peroxide to tmpjo molar ratio, formic acid
Noor Hafizah Arbain +3 more
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Epoxidized Jatropha curcas-based trimethylolpropane triester (ETMPJO) was prepared by the in-situ epoxidation reaction of trimethylolpropane ester (TMPJO) catalyzed by hydrogen peroxide (H2O2) in the presence of formic acid. The epoxidation process was optimized through the variable parameters such as hydrogen peroxide to tmpjo molar ratio, formic acid
Noor Hafizah Arbain +3 more
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Kinetics of transesterification of palm‐based methyl esters with trimethylolpropane
Journal of the American Oil Chemists' Society, 2004AbstractKinetics of transesterification of palm‐based methyl esters (POME) with trimethylolpropane (TMP) to polyol esters was investigated. A kinetic model of reaction was obtained by assuming a series of irreversible elementary reactions at various temperatures. The reaction rate constants were determined under limited conditions.
Robiah Yunus +4 more
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