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二氧化钛和氧化锌纳米颗粒对基于植物酯的介电纳米流体老化过程中性能的影响。

Effect of TiO and ZnO Nanoparticles on the Performance of Dielectric Nanofluids Based on Vegetable Esters During Their Aging.

作者信息

Fernández Inmaculada, Valiente Rafael, Ortiz Félix, Renedo Carlos J, Ortiz Alfredo

机构信息

Department of Electrical and Energy Engineering, Faculty of Industrial and Telecommunications Engineering, University of Cantabria, 39005 Santander, Spain.

Department of Applied Physics, Science Faculty, University of Cantabria, IDIVAL, 39005 Santander, Spain.

出版信息

Nanomaterials (Basel). 2020 Apr 6;10(4):692. doi: 10.3390/nano10040692.

DOI:10.3390/nano10040692
PMID:32268581
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7221705/
Abstract

Over the last few decades the insulating performance of transformer oils has been broadly studied under the point of view of nanotechnology, which tries to improve the insulating and heat dissipation performance of transformer oils by suspending nanoparticles. Many authors have analyzed the thermal and dielectric behavior of vegetable oil based-nanofluids, however, very few works have studied the evolution of these liquids during thermal aging and their stability. In this paper has been evaluated the performance of aged vegetable oil based-nanofluids, which have been subjected to accelerated thermal aging at 150 °C. Nanoparticles of TiO and ZnO have been dispersed in a commercial natural ester. Breakdown voltage, resistivity, dissipation factor and acidity of nanofluid samples have been measured according to standard methods, as well as stability. Moreover, it has been analyzed the degradation of Kraft paper through the degree of polymerization (DP). The results have showed that although nanoparticles improve breakdown voltage, they increase the ageing of insulation liquids and dielectric paper.

摘要

在过去几十年里，从纳米技术的角度对变压器油的绝缘性能进行了广泛研究，纳米技术试图通过悬浮纳米颗粒来提高变压器油的绝缘和散热性能。许多作者分析了植物油基纳米流体的热行为和介电行为，然而，很少有研究探讨这些液体在热老化过程中的演变及其稳定性。本文评估了在150℃下进行加速热老化的老化植物油基纳米流体的性能。TiO和ZnO纳米颗粒已分散在一种商用天然酯中。根据标准方法测量了纳米流体样品的击穿电压、电阻率、损耗因数和酸度以及稳定性。此外，还通过聚合度（DP）分析了牛皮纸的降解情况。结果表明，尽管纳米颗粒提高了击穿电压，但它们增加了绝缘液体和介电纸的老化程度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7083/7221705/ff0596c9f6d4/nanomaterials-10-00692-g018.jpg
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