Effect of molecular structure on oxidative degradation of polyol ester

Citation

Abdul Raof, Nurliyana and Yunus, Robiah and Rashid, Umer and Azis, Norhafiz (2018) Effect of molecular structure on oxidative degradation of polyol ester. In: Asia International Conference on Tribology 2018 (ASIATRIB 2018), 17-20 Sept. 2018, Kuching, Sarawak, Malaysia. (pp. 353-354).

Abstract

An experimental investigation was conducted to explore the thermal and heat flow characteristics of polyol esters with different molecular structures by using simultaneous thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) measurement. A significant difference in onset temperature between the developed esters and mineral oil was observed. The comparison of oxidative stability of polyol esters and mineral transformer oil revealed that polyol esters are oxidatively stable up to >370°C while for mineral oil it was <300°C. As oxidative degradation starts at a lower temperature than thermal degradation, determination of oxidative stability is more important to study the potential the ester to be used as dielectric fluid.

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Additional Metadata

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty of Engineering Institute of Advanced Technology
Publisher:	Malaysian Tribology Society
Keywords:	Oxidative stability; Polyol ester; Transformer oil
Depositing User:	Nabilah Mustapa
Date Deposited:	04 Oct 2019 08:33
Last Modified:	04 Oct 2019 08:33
URI:	http://psasir.upm.edu.my/id/eprint/71529
Statistic Details:	View Download Statistic

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