Improved Oxidation Resistance of Natural Ester Insulating Oil by Oil-soluble Polysesquioxane

2021 6th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM) Pub Date : 2021-11-25 DOI:10.1109/NanofIM54124.2021.9737349

Chaofan Wang, Zhou Sha, Feipeng Wang, Zhengyong Huang, Mengzi Jia, P. Rózga

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引用次数: 2

Abstract

Natural ester insulating oil is a widely used biodegradable dielectric in electrical transformers. However, its low oxidation resistance limits its application in some harsh conditions. Nanotechnology, understood as doping by the nanoparticles the fresh insulating oil, are considered as field for improving the parameters of oil. To investigate the effect of nano-fillers on the oxidation stability of natural ester insulating oil, Envirotemp FR3 commercial natural ester doped by POSS (polysesquioxane) was prepared, and the impact of POSS on the oxidation resistance of natural ester was investigated by experiments. The effect of POSS on the activation energy of the natural ester insulating oil at different temperatures was calculated, and the diffusion characteristics of oxygen molecules in the considered liquid modified by POSS were studied. Results show that the oxidation stability of the natural ester insulating oil was significantly enhanced with aids of POSS.

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油溶性聚己基氧烷提高天然酯绝缘油的抗氧化性

天然酯绝缘油是一种广泛应用于变压器的可生物降解介质。然而，其低抗氧化性限制了其在一些恶劣条件下的应用。纳米技术是将纳米颗粒掺入新鲜的绝缘油中，被认为是改善绝缘油参数的一个领域。为了研究纳米填料对天然酯类绝缘油氧化稳定性的影响，制备了掺杂POSS(聚己基氧烷)的Envirotemp FR3商用天然酯，并通过实验研究了POSS对天然酯抗氧化性能的影响。计算了POSS在不同温度下对天然酯类绝缘油活化能的影响，研究了POSS改性后的液体中氧分子的扩散特性。结果表明，POSS的加入显著提高了天然酯类绝缘油的氧化稳定性。

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2021 6th International Conference on Nanotechnology for Instrumentation and Measurement (NanofIM)

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