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High weatherability nano modified transformer insulating oil containing guaiacol and preparation method thereof

A technology of transformer insulating oil and guaiacol, applied in the field of transformer oil, can solve the problems of the adverse effect of nano-modified transformer oil on insulation performance, the limited improvement of nano-particle dispersion and stability, and the agglomeration of nano-particles. Stability and insulating properties, high practical value, the effect of increasing steric hindrance

Inactive Publication Date: 2017-03-08
TONGLING RIKE ELECTRONICS
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AI Technical Summary

Problems solved by technology

However, in practical applications, nanoparticles are prone to agglomeration, resulting in reduced reliability.
The commonly used surfactant treatment method has limited improvement on the dispersion and stability of nanoparticles, and will adversely affect the insulation performance of nano-modified transformer oil

Method used

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Experimental program
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Effect test

Embodiment Construction

[0014] A highly weather-resistant nano-modified transformer insulating oil containing guaiacol, prepared from the following component raw materials by weight (kg):

[0015] Mineral base oil 1000, castor oil 5, guaiacol 0.5, silane coupling agent KH-570 0.15, azobisisobutyronitrile 0.01, isopropyl tris (dioctyl pyrophosphate acyloxy) titanate 0.3 , methyl methacrylate 0.5, tributyl citrate 1, nano-alumina 0.5, 2,6-di-tert-butylphenol 1, benzotriazole 0.5.

[0016] A preparation method of high weather resistance nano-modified transformer insulating oil containing guaiacol, comprising the following steps:

[0017] (1) Mix the silane coupling agent KH-570 with absolute ethanol at a weight ratio of 1:100, then add nano-alumina for ultrasonic dispersion for 5 minutes, then stir at 40°C for 1 hour, and centrifuge after cooling to obtain solid particles Dry at 90°C for 10 minutes;

[0018] (2) Mix the material obtained in step (1) with absolute ethanol at a weight ratio of 1:40 and ...

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Abstract

The invention discloses a high weatherability nano modified transformer insulating oil containing guaiacol, the high weatherability nano modified transformer insulating oil containing the guaiacol comprises the following raw materials in parts by weight: 1000-1500 parts of mineral base oil, 5-10 parts of castor oil, 0.5-1 part of the guaiacol, 0.15-0.25 part of silane coupling agent KH-570, 0.01-0.015 part of azodiisobutyronitrile, 0.3-0.5 part of Isopropyl tri(dioctylpyrophosphate) titanate, 0.5-1 part of methyl methacrylate, 1-2 parts of tributyl citrate, 0.5-1 part of nano alumina, 1-1.5 parts of 2,6-di-tert-butylphenol and 0.5-1 part of benzotriazole. The high weatherability nano modified transformer insulating oil has excellent stability and insulation performance, can be stored for a long time and keep good performance, meanwhile has high weatherability, stable performance, long service life, is not easy to deteriorate, and has high practical value.

Description

technical field [0001] The invention relates to the technical field of transformer oil, in particular to a highly weather-resistant nano-modified transformer insulating oil containing guaiacol and a preparation method thereof. Background technique [0002] Oil-paper insulation is a typical liquid-solid composite insulation, which is widely used in oil-immersed transformers. With the continuous improvement of the voltage level and transmission capacity of the power system, it has become increasingly difficult for oil-paper composite insulation to meet the requirements of high-voltage levels for large-capacity, miniaturized, and high-reliability insulation systems. In order to improve the performance of the transformer insulation system, how to improve the insulation properties of the insulation medium has become one of the current research hotspots. Transformer oil is an important insulating medium in transformers. It is of great significance to improve the efficiency, safet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/10C10N40/16
CPCC10M169/045C10M2201/062C10M2201/14C10M2203/1006C10M2207/026C10M2207/046C10M2207/282C10M2207/402C10M2215/182C10M2215/223C10M2227/065C10N2030/10C10N2030/72C10N2040/16
Inventor 崔应文
Owner TONGLING RIKE ELECTRONICS
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