Anti-aging nano-modified transformer insulating oil containing ursolic acid and preparation method of anti-aging nano-modified transformer insulating oil containing ursolic acid
A technology of transformer insulating oil and nano-modification, applied in the field of transformer oil, can solve the problems of limited improvement of nano-particle dispersion and stability, adverse effect of nano-modified transformer oil insulation performance, nano-particle agglomeration, etc., and achieve excellent stability. high practical value, good aging resistance
Inactive Publication Date: 2017-02-22
TONGLING RIKE ELECTRONICS
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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
Comparison scheme
Effect test
Embodiment Construction
[0014] A kind of anti-aging nano-modified transformer insulating oil containing ursolic acid, is prepared from the component raw materials of following weight (kg):
[0015] Mineral base oil 1000, ursolic acid 0.5, zinc ricinoleate 0.05, silane coupling agent KH-570 0.15, azobisisobutyronitrile 0.01, methyl methacrylate 0.5, propyl gallate 0.05, turpentine 5, nano Aluminum oxide 0.5, 2,6-di-tert-butylphenol 1, benzotriazole 0.5.
[0016] A kind of preparation method of anti-aging nano-modified transformer insulating oil containing ursolic acid, comprises 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 ultrasonically disperse for ...
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Abstract
The invention discloses anti-aging nano-modified transformer insulating oil containing ursolic acid. The transformer insulating oil is prepared from the following raw materials in parts by weight: 1000-1500 parts of mineral base oil, 0.5-1 part of ursolic acid, 0.05-0.1 parts of zinc diricinoleate, 0.15-0.25 parts of a silane coupling agent KH-570, 0.01-0.015 parts of azobisisobutyronitrile, 0.5-1 part of methyl methacrylate, 0.05-0.1 parts of propyl gallate, 5-10 parts of turpentine, 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 transformer insulating oil has outstanding stability and insulating performance, can be stored for a long time while keeping good performance, is good in anti-aging performance and long in service life and has higher practical value.
Description
technical field [0001] The invention relates to the technical field of transformer oil, in particular to an aging-resistant nano-modified transformer insulating oil containing ursolic acid 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, safety an...
Claims
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IPC IPC(8): C10M169/04C10N30/10C10N30/04
CPCC10M169/045C10M2201/062C10M2207/024C10M2207/126C10M2207/128C10M2207/281C10M2207/284C10M2207/40C10M2215/182C10M2215/223C10M2227/04C10N2030/04C10N2030/10C10N2040/16
Inventor 崔应文
Owner TONGLING RIKE ELECTRONICS