Nitrile rubber for extra-high voltage large-scale oil-immersed type transformer
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A technology for nitrile rubber and transformers, applied in the rubber field, can solve the problems of normal operation of transformers, unsafe transformers, transformer breakdowns, etc., to solve the problems of gas production and insulation performance decline, maintenance and operation safety, and oil aging performance improvement. Effect
Inactive Publication Date: 2013-04-17
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology
When the gas content exceeds a certain standard, it will affect the normal operation of the transformer, resulting in the decline of the insulation performance and thermal co
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Embodiment 1
[0036] In terms of mass fraction: 100 parts of nitrile rubber NBR, 0.1 part of stearic acid, 10 parts of carbon black, 10 parts of spray carbon black, 1 part of zinc oxide, 0.1 part of vulcanizing agent DTDM, and 0.1 part of vulcanizing agent TETD 0.1 part, 0.1 part of vulcanizing agent TMTD, 0.1 part of accelerator CZ, 0 part of anti-aging agent RD, 0.1 part of anti-aging agent MB, 0.1 part of anti-aging agent 4010, 1 part of paraffin wax, 1 part of Coumaron The dosage of octyl ester is 5 parts.
Embodiment 2
[0038] In terms of mass fraction: 100 parts of nitrile rubber NBR, 20 parts of stearic acid, 80 parts of carbon black, 80 parts of spray carbon black, 30 parts of zinc oxide, 20 parts of vulcanizing agent DTDM, and 20 parts of vulcanizing agent TETD 20. The amount of vulcanizing agent TMTD is 20 parts, the amount of accelerator CZ is 20 parts, the amount of anti-aging agent RD is 20 parts, the amount of anti-aging agent MB is 20 parts, the amount of anti-aging agent 4010 is 20 parts, the amount of paraffin is 20 parts, the amount of coumarone is 30 parts, sebacin The amount of ester is 50 parts.
Embodiment 3
[0040] In terms of mass fraction: 100 parts of nitrile rubber NBR, 1 part of stearic acid, 35 parts of carbon black, 20 parts of spray carbon black, 5 parts of zinc oxide, 2 parts of vulcanizing agent DTDM, and 2 parts of vulcanizing agent TETD 0.87, vulcanizing agent TMTD dosage 0.87, accelerator CZ dosage 1.45 parts, antioxidant RD dosage 1.5 parts, antioxidant MB dosage 1 part, antioxidant 4010 dosage 1 part, paraffin dosage 1 part, coumarone dosage 5 parts, sebacin The amount of ester is 10 parts.
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Abstract
The invention belongs to the technical field of rubber, and mainly relates to a nitrile rubber for an extra-high voltage large-scale oil-immersed type transformer. The nitrile rubber comprises the following components in parts by mass: 100 parts of nitrile rubber NBR (nitrile -butadiene rubber), 0.1 to 20 parts of stearic acid, 10 to 80 parts of carbon black, 10 to 80 parts of spraying carbon black, 1 to 30 parts of zinc oxide, 0.1 to 20 parts of a vulcanizing agent DTDM (4,4'-Dithiodimorpholine), 0.1 to 20 parts of a vulcanizing agent TETD (Tetraethylthiuram Disufide), 0.1 to 20 parts of a vulcanizing agent TMTD (Tetramethyl Thiuram Disulfide), 0.1 to 20 parts of an accelerant CZ, 0 to 20 parts of an antioxidant RD, 0.1 to 20 parts of an antioxidant RB, 0.1 to 20 parts of an antioxidant 4010, 1 to 20 parts of paraffin, 1 to 30 parts of coumarone and 5 to 50 parts of decadioctyl. The compatibility of the nitrile rubber with respect to the oil of the transformer is further improved, so that the problem that the gas is generated by the rubber in the transformer can be solved, and the stability and the safety of the extra-high voltage large-scale oil-immersed type transformer in running can be ensured.
Description
technical field [0001] The invention relates to the technical field of rubber, in particular to a nitrile rubber suitable for use in ultra-high voltage large oil-immersed transformers. Background technique [0002] In my country's implementation of the development strategy of "power transmission from west to east", power transformers are one of the most important and key equipment for the safe operation of my country's interconnection grid. Economic losses are immeasurable. Therefore, ensuring the safe operation of large power transformers occupies an extremely important position in the power system. [0003] Nitrile rubber (NBR) is made by butadiene CH 2 =CH-CH=CH 2 with acrylonitrile CH 2 =CH-CN is a general-purpose non-crystalline oil-resistant rubber obtained by emulsion polymerization. Its production process is similar to that of emulsion polymerization of styrene-butadiene rubber. At present, some nitrile rubber in the world is produced on the shared equipment of em...
Claims
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