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-化物复合矿物油的水扩散行为和电子性能的分子模拟

Yang Wang^1,2, Wenchao Yan^1,2, Kunqi Cui^1,2

¹School of Electronics and Information, Xi'an Polytechnic University, Xi'an 710048, China.

Molecules (Basel, Switzerland)

|September 28, 2024

概括

用化 (BN) 纳米颗粒染变压器油会影响水的扩散和电气性能. 表面结构和功能组在BN/矿物油接口上显著影响水的运动和电子行为.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
电气工程电气工程

背景情况:

变压器油绝缘对于功率变压器来说至关重要.
用纳米颗粒进行兴奋剂增强介电和电性质.
纳米粒子类型和表面状况对石油性能的影响尚未完全理解.

研究的目的:

研究不同化 (BN) 纳米粒子类型 (纳米圈,纳米管,纳米板) 对矿物油 (MO) 水的扩散和电特性的影响.
分析BN纳米颗粒的表面形态和功能组如何影响BN/MO接口.

主要方法:

使用分子动力学 (MD) 和密度函数理论 (DFT) 模拟.
检查了水分子扩散和界面潜在障碍.
评估了BN/MO接口的电气性能.

主要成果:

不同的BN纳米粒子形态和表面组显著影响水的扩散和界面潜在障碍.
没有功能组的BN纳米圈显示出对水扩散的最小限制.
将 -NH2 组移植到 BN 纳米粒子上显著限制了水的扩散,纳米球显示出最大的影响.
六角形BN (h-BN) 表面作为电子陷,而立方BN (c-BN) 表面作为MO中电子的潜在障碍物.
在接口附近的水分子对潜在的障碍物的影响最小.

结论:

BN纳米颗粒的表面形态和功能性极大地影响了变压器油中的水扩散和电特性.
了解这些界面效应是优化纳米粒子合变压器油以提高绝缘性能的关键.

关键词:

在BN纳米粒子.水分子的扩散.接口的潜在障碍是潜在的障碍.矿物油矿物油的使用情况.分子模拟分子模拟

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