Modified hydrogenated nitrile-butadiene rubber and its preparing method

A hydrogenated nitrile rubber and modification technology, which is applied in the field of carbon nanotube modified hydrogenated nitrile rubber and its preparation, can solve the problems of difficulty in meeting the requirements of wear resistance and heat resistance, avoid local high temperature damage, comprehensively Performance improvement, the effect of improving performance

Inactive Publication Date: 2004-12-15
SINOPEC OILFIELD EQUIP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing rubber parts made of hydrogenated nitrile rubber have been difficult to meet the requirements of wear resistance and heat resistance in some occasions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Preparation of carbon nanotube modified hydrogenated nitrile rubber compound. Select carbon nanotubes with a diameter of 20-40nm, disperse them with a surfactant (such as sodium dodecylsulfonate), then add 50 parts of liquid rubber and 40 parts of carbon nanotubes to the container in sequence, Ultrasonic skin dispersion treatment was carried out, and then the mixture and hydrogenated nitrile rubber were uniformly mixed on an open mill at a weight ratio of 9:10 to prepare a masterbatch with carbon nanotubes added. Therban 3850 brand hydrogenated nitrile was selected as the raw rubber for formulation.

[0016] Take by weighing 38 parts of masterbatch, 80 parts of raw rubber, 3.8 parts of dicumyl oxide (DCP), 5 parts of nano zinc oxide, 55 parts of carbon black, 17 parts of graphite, 1.5 parts of antiaging agent RD (2,2 , 4-trimethyl-1,2-dihydroquinoline polymer) were mixed evenly on an open mill. Put the kneaded rubber material overnight, vulcanize at 180°C for 5 minute...

Embodiment 2

[0018] Preparation of carbon nanotube modified hydrogenated nitrile rubber compound. Select carbon nanotubes with a diameter of 20-40nm, disperse them with a surfactant (such as sodium dodecylsulfonate), then add 50 parts of liquid rubber and 30 parts of carbon nanotubes to the container in sequence, Ultrasonic dispersion treatment was carried out on the mixer, and then the mixture and hydrogenated nitrile rubber were uniformly mixed on an open mill at a weight ratio of 8:10 to prepare a masterbatch with carbon nanotubes added. Therban 3850 brand hydrogenated nitrile was selected as the raw rubber for formulation.

[0019] Weigh 36 parts of masterbatch, 80 parts of raw rubber, 3.5 parts of dicumyl oxide (DCP), 5 parts of nano-zinc oxide, and 72 parts of carbon black in sequence, and mix them evenly on an open mill. Put the kneaded rubber material overnight, vulcanize at 180°C for 5 minutes, and then carry out two-stage vulcanization at 150°C for 3 hours. The hydrogenated nit...

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Abstract

The present invention relates to the preparing technology of composite rubber material. Carbon nanotube via surface treatment and liquid rubber are ultrasonically mixed and added into partial hydrogenated nitrile-butadiene rubber to prepare mother rubber; the mother rubber is mixed with the rest hydrogenated nitrile-butadiene rubber, carbon black, zinc oxide and sulfurizing agent, and the mixture is mixed in a rolling mixer or a Banbury mixer and sulfurized to obtain the carbon nanotube modified hydrogenated nitrile-butadiene rubber. The present invention has the beneficial effects of raised heat performance, antiwear performance, mechanical strength, antiageing performance, etc. raised use performance and expanded application range.

Description

technical field [0001] The invention relates to a carbon nanotube modified hydrogenated nitrile rubber and a preparation method thereof, belonging to the technical field of preparation of rubber polymer composite materials. Background technique [0002] Hydrogenated nitrile rubber has many balanced and excellent properties such as heat resistance, oil resistance, wear resistance and high mechanical strength, so it is widely used in many industries such as automobiles, machinery, and oil drills. However, with the development of science and technology and the improvement of equipment performance, the requirements for heat resistance and wear resistance of rubber seals as functional accessories are getting higher and higher. The existing rubber parts made of hydrogenated nitrile rubber have been difficult to meet the wear resistance and heat resistance requirements of some occasions. Contents of the invention [0003] The technical problem to be solved by this invention is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/30C08L9/02
CPCC08J5/042C08J5/005C08J2309/02C08J5/06
Inventor 杨忠新毛红兵樊凤山
Owner SINOPEC OILFIELD EQUIP CORP
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