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Rubber material for pack-off element of telescopic joint and preparation method for rubber material

A technology of expansion joints and rubber materials, applied in the field of rubber materials, can solve the problems of frequent replacement and easy damage of rubber, and achieve the effect of prolonging service life, improving service life and excellent wear resistance.

Inactive Publication Date: 2017-05-10
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the rubber used for the sealing element in the current expansion joint needs to be replaced frequently due to friction and extrusion, it proposes a high-life rubber material for the sealing element of the expansion joint and its preparation method, which improves the use of the product longevity, lower costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A rubber material for expansion joint packing elements, including hydrogenated nitrile rubber, carboxylated nitrile rubber, short fibers, carbon black, wear-resistant fillers, plasticizers, anti-aging agents, vulcanizing agents, vulcanization accelerators and vulcanization activators.

[0037] Further, the content of each component in the material is: 90 parts of hydrogenated nitrile rubber, 10 parts of carboxylated nitrile rubber, 5 parts of short fiber, 50 parts of carbon black, 5 parts of wear-resistant filler, 5 parts of plasticizer, 2 parts of anti-aging agent parts, 0.5 parts of vulcanizing agent, 2 parts of vulcanization accelerator, and 6 parts of vulcanization activator.

[0038] Further, the acrylonitrile content in the hydrogenated nitrile rubber is 36%, the residual double bond content is 15%, and the Mooney viscosity at 100°C, ie, ML1+4 at 100°C, is 55.

[0039] Further, the hydrogenated nitrile rubber is Zeptpol 2030L.

[0040] Further, the carboxyl content...

Embodiment 2

[0057] A rubber material for expansion joint packing elements, including hydrogenated nitrile rubber, carboxylated nitrile rubber, short fibers, carbon black, wear-resistant fillers, plasticizers, anti-aging agents, vulcanizing agents, vulcanization accelerators and vulcanization activators.

[0058] Further, the content of each component in the material is: 80 parts of hydrogenated nitrile rubber, 20 parts of carboxylated nitrile rubber, 15 parts of short fiber, 60 parts of carbon black, 25 parts of wear-resistant filler, 20 parts of plasticizer, anti-aging agent 6 parts, 2 parts vulcanization agent, 5 parts vulcanization accelerator, 6 parts vulcanization activator.

[0059] Further, the acrylonitrile content in hydrogenated nitrile rubber is 44%, the residual double bond content is 5.5%, and the Mooney viscosity at 100°C, that is, ML1+4 at 100°C is 61.

[0060] Further, the hydrogenated nitrile rubber is Depan 4367.

[0061] Furthermore, the carboxyl group content in carbo...

Embodiment 3

[0078] A rubber material for expansion joint packing elements, including hydrogenated nitrile rubber, carboxylated nitrile rubber, short fibers, carbon black, wear-resistant fillers, plasticizers, anti-aging agents, vulcanizing agents, vulcanization accelerators and vulcanization activators.

[0079] Further, the content of each component in the material is: 70 parts of hydrogenated nitrile rubber, 30 parts of carboxylated nitrile rubber, 10 parts of short fiber, 65 parts of carbon black, 15 parts of wear-resistant filler, 12 parts of plasticizer, anti-aging agent 4 parts, 1 part of vulcanizing agent, 3 parts of vulcanization accelerator, 6 parts of vulcanization activator.

[0080] Further, the acrylonitrile content in the hydrogenated nitrile rubber is 34%, the residual double bond content is 4%, and the Mooney viscosity at 100°C, ie ML1+4 at 100°C, is 61.

[0081] Further, the hydrogenated nitrile rubber is Depan 3446.

[0082] Further, the carboxyl content in carboxylated...

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PUM

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Abstract

The invention relates to a rubber material for a pack-off element of a telescopic joint and a preparation method for the rubber material. The material contains hydrogenated nitrile-butadiene rubber, carboxylated nitrile-butadiene rubber, staple fibers, carbon black, wear-resistant filler, a plasticizer, an anti-aging agent, a vulcanizing agent, a vulcanization accelerator and a vulcanization activator. The preparation method comprises the preparation steps: (1) proportionally weighing the hydrogenated nitrile-butadiene rubber, the carboxylated nitrile-butadiene rubber, the vulcanization activator, the staple fibers, the carbon black, the wear-resistant filler, the anti-aging agent and the plasticizer, sequentially putting the weighed ingredients into an internal mixer, carrying out conventional milling according to the conventional rubber processing method, carrying out roll release, and carrying out tight milling in an open mill; (2) putting the tight-milled rubber mass into an internal mixer, adding the vulcanizing agent and the vulcanization accelerator into the internal mixer, carrying out uniform milling, then, carrying out roll release, and carrying out normal-temperature placement; (3) carrying out back mixing on the milled rubber, and then, carrying out vulcanization forming, thereby preparing rubber telescopic joint pack-off elements. The rubber material provided by the invention has extremely excellent wear resistance, extrusion resistance and adhesion property on the basis of guaranteeing good physical and mechanical properties, so that service lives of products are greatly prolonged.

Description

technical field [0001] The invention relates to a rubber material and a preparation method thereof, in particular to a rubber material for an expansion joint packing element and a preparation method thereof, belonging to the technical field of rubber materials. Background technique [0002] The expansion joint is an important part of the marine drilling riser system assembly. It is installed on the top of the marine riser system, between the upper flexible joint and the riser puppet. Its function is to compensate the drilling ship platform by continuously adjusting the length of the riser. It provides the connection method between the diverter group and the riser, provides the terminal for the riser auxiliary pipeline to the flexible hose of the drilling ship, provides the action point of the riser tension system, and maintains the stability of the riser in seawater. [0003] The expansion joint is composed of an inner cylinder, an outer cylinder and auxiliary parts. The inn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L13/00C08L77/10C08L67/00C08L27/18C08K13/02C08K3/04C08K3/30
CPCC08L15/005C08K2201/014C08L2201/08C08L2205/02C08L2205/035C08L2205/16
Inventor 陈彰斌贺湘伟李远周明董晶晶黄自华张亚新姜其斌
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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