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Rubber material for transformer sealing ring and preparation method thereof

A technology of rubber materials and sealing rings, applied in building insulation materials, building components, buildings, etc., can solve the problems of low strength and poor wear resistance of gaskets, and achieve improved mechanical strength, high wear resistance, and improved anti-sticking effect Effect

Active Publication Date: 2018-08-21
国网河南省电力公司方城县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent gasket has low strength and poor wear resistance.

Method used

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  • Rubber material for transformer sealing ring and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A rubber material for a transformer sealing ring, made of the following raw materials in parts by weight: 50 parts of nitrile rubber, 20 parts of acrylic rubber, 5 parts of epichlorohydrin rubber, 3 parts of wood fiber, 5 parts of nano-titanium dioxide, and a reinforcing agent 15 parts, 1 part anti-aging agent, 1 part accelerator, 1 part sulfur, 3 parts zinc oxide, 5 parts stearic acid, 3 parts pitch, 1 part chlorinated paraffin, 10 parts plasticizer and 5 parts crosslinking agent.

[0024] The particle size of the nano titanium dioxide is 20-100nm.

[0025] The reinforcing agent is carbon black N330.

[0026] The anti-aging agent is anti-aging agent RD.

[0027] Described accelerator is accelerator M.

[0028] Described plasticizer is dioctyl phthalate.

[0029] The crosslinking agent is benzoyl peroxide.

[0030] The preparation method of the rubber material for the above-mentioned transformer sealing ring comprises the following steps:

[0031] (1) Add nitrile r...

Embodiment 2

[0035] A rubber material for a transformer sealing ring, made of the following raw materials in parts by weight: 52 parts of nitrile rubber, 23 parts of acrylic rubber, 6 parts of epichlorohydrin rubber, 4 parts of wood fiber, 6 parts of nano-titanium dioxide, and a reinforcing agent 18 parts, 2 parts of anti-aging agent, 1.5 parts of accelerator, 1.3 parts of sulfur, 3.2 parts of zinc oxide, 5.5 parts of stearic acid, 3.5 parts of asphalt, 1.2 parts of chlorinated paraffin, 11 parts of plasticizer and 6 parts of crosslinking agent.

[0036] The particle size of the nano titanium dioxide is 20-100nm.

[0037] The reinforcing agent is carbon black N550.

[0038] Described anti-aging agent is anti-aging agent 4020.

[0039] The accelerator is accelerator DM.

[0040] Described plasticizer is dibutyl phthalate.

[0041] The crosslinking agent is 1,3-bis(2-tert-butylperoxyisopropyl)benzene.

[0042] The preparation method of the rubber material for the above-mentioned transfor...

Embodiment 3

[0047]A rubber material for a transformer sealing ring, made of the following raw materials in parts by weight: 55 parts of nitrile rubber, 24 parts of acrylic rubber, 7 parts of epichlorohydrin rubber, 5 parts of wood fiber, 7 parts of nano-titanium dioxide, and a reinforcing agent 20 parts, 2.5 parts of anti-aging agent, 2 parts of accelerator, 1.8 parts of sulfur, 4 parts of zinc oxide, 6 parts of stearic acid, 4 parts of asphalt, 1.6 parts of chlorinated paraffin, 12 parts of plasticizer and 8 parts of crosslinking agent.

[0048] The particle size of the nano titanium dioxide is 20-100nm.

[0049] The reinforcing agent is carbon black N330 and carbon black N550, and the weight ratio of the two is 1:1.

[0050] The anti-aging agent is anti-aging agent MB.

[0051] The accelerator is accelerator NA-22.

[0052] Described plasticizer is di-isooctyl phthalate.

[0053] The crosslinking agent is 1,4-bis-tert-butylperoxycumene.

[0054] The preparation method of the rubber ...

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Abstract

The invention belongs to the technical field of sealing materials and particularly relates to a rubber material for a sealing ring of a transformer and a preparation method of the rubber material. The rubber material is prepared from the following raw material in parts by weight: 50-70 parts of nitrile rubber, 20-30 parts of acrylic rubber, 5-10 parts of epichlorohydrin rubber, 3-8 parts of wood fibers, 5-10 parts of nanometer titania, 15-25 parts of a fortifier, 1-5 parts of an anti-aging agent, 1-3 parts of an accelerate, 1-3 parts of sulfur, 3-6 parts of zinc oxide, 4-8 parts of stearic acid, 3-6 parts of asphalt, 1-3 parts of chlorinated paraffin, 10-15 parts of a plasticizer and 5-15 parts of a cross-linking agent. The rubber material for the sealing ring of the transformer is high in strength, small in compressive deformation and excellent in anti-aging performance.

Description

technical field [0001] The invention belongs to the technical field of sealing materials, and in particular relates to a rubber material for a transformer sealing ring and a preparation method thereof. Background technique [0002] Transformer sealing ring plays an important role in preventing oil leakage. At present, most of the commonly used gaskets are rubber gaskets, but the existing rubber gaskets have poor oil resistance and fast aging, especially at high temperatures, which can easily cause sealing The pad is aging and cracked, causing the transformer to leak oil. [0003] Chinese patent application CN103627048B discloses a pressure-resistant, wear-resistant, corrosion-resistant transformer sealing ring and its production method, using nitrile rubber as the main raw material, forming a synthetic rubber with high-strength reclaimed rubber and coumarone resin, which has excellent Oil resistance, abrasion resistance and heat resistance, supplemented by carbon black, cer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L33/04C08L97/02C08L95/00C08L71/03C08L91/06C08K13/02C08K3/22C08K5/09C08K3/04C08K3/26C08K3/36C08K5/12
CPCC08K2201/003C08K2201/011C08K2201/014C08L9/02C08L2201/08C08L2205/035C08L2205/16C08L2312/00C08L33/04C08L97/02C08L95/00C08L71/03C08L91/06C08K13/02C08K2003/2241C08K5/09C08K3/04C08K2003/265C08K3/36C08K5/12
Inventor 仝照辉
Owner 国网河南省电力公司方城县供电公司
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