Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil

Esters of thiolated Butylated hydroxytoluene (AO1 and AO2), bearing two antioxidant moieties (BHT and thioether), are synthesized and reported first time as competitive antioxidants for synthetic ester-based lubricant oil (trimethylolpropane trioleate, TMPTO). Differential Scanning Calorimetry (DSC)...

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Main Authors: Nath, Amit Ranjan, Yehye, Wageeh Abdulhadi, Zulkifli, Nurin Wahidah Mohd, Johan, Mohd Rafie
Format: Article
Published: Elsevier 2018
Subjects:
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author Nath, Amit Ranjan
Yehye, Wageeh Abdulhadi
Zulkifli, Nurin Wahidah Mohd
Johan, Mohd Rafie
author_facet Nath, Amit Ranjan
Yehye, Wageeh Abdulhadi
Zulkifli, Nurin Wahidah Mohd
Johan, Mohd Rafie
author_sort Nath, Amit Ranjan
collection UM
description Esters of thiolated Butylated hydroxytoluene (AO1 and AO2), bearing two antioxidant moieties (BHT and thioether), are synthesized and reported first time as competitive antioxidants for synthetic ester-based lubricant oil (trimethylolpropane trioleate, TMPTO). Differential Scanning Calorimetry (DSC) and Rotary Bomb Oxidation Test (RBOT) are utilized for the evaluation of Oxidation stability. Thermogravimetric Analysis (TGA) is performed for the thermal stability assessment. The synthesized esters have shown very promising results in all experiments such as 3 wt.% AO1 blended TMPTO has shown 15.3 and 4.4 times better oxidation stability in comparison with BHT and Irganox 1076 respectively in DSC. Again, isothermal TGA has shown that 1.5 wt.% AO1 blended TMPTO is 1.5 times better than BHT at reducing weight loss of TMPTO occurred by the oxidation process. Apparently, these compounds have given high oxidation stability to synthetic ester-based lube oil (TMPTO) by protecting from premature oxidative degradation.
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spelling um.eprints-211612019-05-08T05:55:03Z http://eprints.um.edu.my/21161/ Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil Nath, Amit Ranjan Yehye, Wageeh Abdulhadi Zulkifli, Nurin Wahidah Mohd Johan, Mohd Rafie TJ Mechanical engineering and machinery Esters of thiolated Butylated hydroxytoluene (AO1 and AO2), bearing two antioxidant moieties (BHT and thioether), are synthesized and reported first time as competitive antioxidants for synthetic ester-based lubricant oil (trimethylolpropane trioleate, TMPTO). Differential Scanning Calorimetry (DSC) and Rotary Bomb Oxidation Test (RBOT) are utilized for the evaluation of Oxidation stability. Thermogravimetric Analysis (TGA) is performed for the thermal stability assessment. The synthesized esters have shown very promising results in all experiments such as 3 wt.% AO1 blended TMPTO has shown 15.3 and 4.4 times better oxidation stability in comparison with BHT and Irganox 1076 respectively in DSC. Again, isothermal TGA has shown that 1.5 wt.% AO1 blended TMPTO is 1.5 times better than BHT at reducing weight loss of TMPTO occurred by the oxidation process. Apparently, these compounds have given high oxidation stability to synthetic ester-based lube oil (TMPTO) by protecting from premature oxidative degradation. Elsevier 2018 Article PeerReviewed Nath, Amit Ranjan and Yehye, Wageeh Abdulhadi and Zulkifli, Nurin Wahidah Mohd and Johan, Mohd Rafie (2018) Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil. Thermochimica Acta, 670. pp. 7-12. ISSN 0040-6031, DOI https://doi.org/10.1016/j.tca.2018.09.021 <https://doi.org/10.1016/j.tca.2018.09.021>. https://doi.org/10.1016/j.tca.2018.09.021 doi:10.1016/j.tca.2018.09.021
spellingShingle TJ Mechanical engineering and machinery
Nath, Amit Ranjan
Yehye, Wageeh Abdulhadi
Zulkifli, Nurin Wahidah Mohd
Johan, Mohd Rafie
Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title_full Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title_fullStr Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title_full_unstemmed Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title_short Ester of thiolated butylated hydroxytoluene: Potential antioxidant for synthetic lubricant oil
title_sort ester of thiolated butylated hydroxytoluene potential antioxidant for synthetic lubricant oil
topic TJ Mechanical engineering and machinery
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AT zulkiflinurinwahidahmohd esterofthiolatedbutylatedhydroxytoluenepotentialantioxidantforsyntheticlubricantoil
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