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High-lubricity stillingia oil-containing core-shell-structure nano-modified transformer oil and preparation method thereof

A technology of nano-modification and core-shell structure, applied in the field of transformer oil, can solve the problems of difficulty in maintaining long-term stability of nano-modified transformer oil, easy oxidation, decomposition, easy deterioration of oleic acid, etc., and achieves strong practicability and long service life , good dispersion performance

Inactive Publication Date: 2017-02-22
TONGLING RIKE ELECTRONICS
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Problems solved by technology

Although this method can improve the dispersion and stability of nanoparticles in transformer oil, oleic acid is easy to deteriorate in the air, especially under high temperature conditions, it is very easy to oxidize and decompose, and it is difficult to maintain nano-modification in actual operation. Long-term stability of transformer oil

Method used

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Embodiment Construction

[0014] A kind of core-shell nano-modified transformer oil containing tallow oil with high lubricity, prepared from the following component raw materials by weight (kg):

[0015] Naphthenic base oil 100, Chinese tallow oil 10, nano-titanium dioxide 0.1, nano-aluminum nitride 0.03, 2,6-di-tert-butyl-p-cresol 0.3, benzotriazole 0.1, oleic acid diethanolamide borate 0.1 , tetraethyl orthosilicate 0.015, vinyltriethoxysilane 0.015, polyalkylene glycol 0.1.

[0016] A preparation method of a core-shell structure nano-modified transformer oil containing tallow oil with high lubricity, comprising the following steps:

[0017] (1) First, add nano-titanium dioxide and nano-aluminum nitride into absolute ethanol at a solid-to-liquid weight ratio of 1:100 and ultrasonically disperse evenly, then slowly add tetraethylorthosilicate and vinyltriethoxysilane and stir for 0.5h to obtain Mixed solution, finally slowly dropwise add acetic acid solution equivalent to 1 / 20 of the mixed solution v...

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Abstract

The invention discloses high-lubricity stillingia oil-containing core-shell-structure nano-modified transformer oil. The transformer oil is prepared from, by weight, 100-150 parts of naphthenic base oil, 10-15 parts of stillingia oil, 0.1-0.15 part of nano-titanium dioxide, 0.03-0.05 part of nano-aluminum nitride, 0.3-0.5 part of 2,6-butylated hydroxytoluene, 0.1-0.15 part of benzotriazole, 0.1-0.15 part of diglycolamide oleate borate, 0.015-0.025 part of ethyl orthosilicate, 0.015-0.025 part of vinyltriethoxysilane and 0.1-0.15 part of poly(alkylene glycol). The transformer oil has the good insulating property and heat dissipation property, is stable in property and long in service life, has the advantages of being good in lubricating property and dispersing property and is beneficial for steady running of a transformer system and high in practicability.

Description

technical field [0001] The invention relates to the technical field of transformer oil, in particular to a core-shell structure nano-modified transformer oil containing tallow oil with high lubricity and a preparation method thereof. Background technique [0002] With the continuous development of power transformers in the direction of high insulation, large capacity and miniaturization, more and more attention has been paid to improving the performance of insulating media. Transformer oil is a low-viscosity oil with two functions of insulation and heat dissipation. It is an important part of the current transformer insulation system. Its performance plays an important role in the safety and reliability of the long-term operation of the transformer. Therefore, how to improve the performance of transformer oil has become one of the research hotspots. [0003] Nano-modified transformer oil is a new type of transformer oil obtained by modifying transformer oil with nanoparticl...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M167/00C10N30/10C10N40/16
CPCC10M167/00C10M169/048C10M2201/061C10M2201/062C10M2203/003C10M2207/026C10M2207/40C10M2209/103C10M2215/223C10M2227/02C10M2227/04C10M2227/061C10N2030/10C10N2040/16
Inventor 崔应文
Owner TONGLING RIKE ELECTRONICS
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