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Rubber composition for conducting static electricity for oil storage tank sealing device and production method thereof

A technology of rubber composition and sealing device, which is applied in the field of rubber composition, can solve the problem of inability to produce rubber materials with medium resistance, wear resistance, high strength and good static conductivity, medium resistance, wear resistance, and unsatisfactory strength, Disaster prevention requirements gap and other issues, to achieve the effect of improved safety performance, excellent static conductivity, and reduced production costs

Active Publication Date: 2016-04-27
ANQING SPECIAL RUBBER & PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the nitrile rubber used in the sealing device is unsatisfactory in terms of medium resistance, wear resistance, and strength, especially in the performance index of static electricity and the disaster prevention requirements of storage tanks.
At the same time, the existing rubber mixing method cannot produce rubber materials with medium resistance, wear resistance, high strength and good static conductivity.

Method used

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  • Rubber composition for conducting static electricity for oil storage tank sealing device and production method thereof
  • Rubber composition for conducting static electricity for oil storage tank sealing device and production method thereof
  • Rubber composition for conducting static electricity for oil storage tank sealing device and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The rubber composition for conducting static electricity of the oil storage tank sealing device is made of raw materials with the following weights:

[0020]

[0021] It is produced by mixing method. Specifically, the raw rubber, active agent and processing aid are placed in an internal mixer and mixed under pressure (conventional mixing process pressure) for 2 minutes to obtain rubber compound A. Put reinforcing agent, inorganic filler and plasticizer into rubber compound A, and place them in an internal mixer for pressure mixing for 8 minutes to obtain rubber compound B. Put a vulcanizing agent into the rubber compound B, and place it in an internal mixer for pressure mixing for 2 minutes to obtain a rubber compound C. Then put the rubber mixture C in an open mill and mix it evenly, and process it through the thin pass process 6 times, and the next piece can be parked for more than 12 hours.

Embodiment 2

[0023] The rubber composition for conducting static electricity of the oil storage tank sealing device is made of raw materials with the following weights:

[0024]

[0025]

[0026] It is produced by mixing method. Specifically, the raw rubber, active agent and processing aid are placed in an internal mixer and mixed under pressure (conventional mixing process pressure) for 1 minute to obtain rubber compound A. Put the reinforcing agent, inorganic filler and plasticizer into the rubber compound A, and place them in the internal mixer for pressure mixing for 9 minutes to obtain the rubber compound B. Put the vulcanizing agent into the rubber compound B and place it in an internal mixer for pressure mixing for 3 minutes to obtain the rubber compound C. Then put the rubber mixture C in an open mill and mix it evenly, and process it through the thin pass process 6 times, and the next piece can be parked for more than 12 hours.

Embodiment 3

[0028] The rubber composition for conducting static electricity of the oil storage tank sealing device is made of raw materials with the following weights:

[0029]

[0030] The compounding method is used for production, specifically, the raw rubber, active agent and processing aid are placed in an internal mixer for pressure (normal mixing process pressure) and mixed for 3 minutes to obtain compound rubber A. Put reinforcing agent, inorganic filler and plasticizer into rubber compound A, and place them in an internal mixer for mixing under pressure for 6 minutes to obtain compound rubber B. Put the vulcanizing agent into the rubber compound B and place it in an internal mixer for pressure mixing for 5 minutes to obtain the rubber compound C. Then put the rubber mixture C in an open mill and mix it evenly, and process it through the thin pass process 6 times, and the next piece can be parked for more than 12 hours.

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Abstract

The invention relates to a special-purpose rubber composition, particularly an electrostatic-conduction rubber composition for oil tank sealing devices, which is prepared from 54-55 parts of unvulcanized rubber, 14-15 parts of reinforcing agent, 14-15 parts of inorganic filler, 8-9 parts of plasticizer, 2-4 parts of activating agent, 3-4 parts of processing assistant and 1-1.5 parts of vulcanizing agent. The unvulcanized rubber is selected from fluororubber; the reinforcing agent is selected from medium-particle thermal-cracking carbon black and / or acetylene carbon black; and the plasticizer is selected from triphosphate and / or dioctyl phthalate. The method adopts a compounding process and comprises the following steps: carrying out pressurization compounding on the unvulcanized rubber, activating agent and processing assistant, adding the reinforcing agent, inorganic filler and plasticizer, carrying out pressurization compounding, adding the vulcanizing agent, carrying out pressurization compounding, evenly mixing in an open mill, carrying out mill run treatment, and discharging. The rubber composition has favorable and stable electrostatic conductivity, and can lead out the electrostatic charges generated by the friction between the rubber and metal tank in time in the oil tank operating process, thereby obviously enhancing the safety performance of the oil tank.

Description

Technical field [0001] The invention relates to a rubber composition with special purposes, in particular to a rubber composition for conducting static electricity in an oil storage tank sealing device. At the same time, the present invention also relates to a production method of the rubber composition for conducting static electricity of the oil storage tank sealing device. Background technique [0002] In recent years, petroleum energy reserves have increasingly shown their very important status in my country's social construction. In recent years, my country has newly built a large number of national petroleum reserve bases and built a large number of petroleum storage tanks. With the improvement of safety and environmental protection requirements, a sealing device is installed in the gap between the tank wall and the floating roof of the oil storage tank to prevent the leakage of oil and gas and reduce oil loss through its sealing performance. [0003] However, since the floa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08K13/02C08K3/04C08K5/12C08K3/26C08K3/22C08K5/09C08K5/17C08K5/521
Inventor 马自坤
Owner ANQING SPECIAL RUBBER & PLASTIC PROD
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