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Preparation method of reinforced hydrogenated butyronitrile composite material

A technology of hydrogenated nitrile and composite materials, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of imperfect dispersion and inability to solve problems higher than 150°C, and achieve excellent aging resistance , good sealing effect, excellent mechanical properties

Inactive Publication Date: 2014-02-19
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zinc dimethacrylate (ZMA) has good compatibility with HNBR rubber, but the dispersion is not perfect, and it shows a certain synergistic effect with carbon black N550. The tensile strength of the prepared rubber composite is generally less than 35MPa, It can't solve the sealing problem of higher than 150 ℃ and high pressure difference

Method used

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  • Preparation method of reinforced hydrogenated butyronitrile composite material

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preparation example Construction

[0017] A preparation method for reinforced hydrogenated nitrile butadiene composite material, the steps are as follows: firstly put hydrogenated nitrile butadiene rubber in an open mill for mastication, after the hydrogenated nitrile butadiene rubber is covered with rolls, add stearic acid, metal oxide, anti-aging Mix the agent on the open mill for 5 minutes, then add the reinforcing agent and mix evenly, then add the vulcanizing agent and the vulcanization auxiliary agent and mix evenly, and then thin the lower sheet to obtain the mixed rubber; put the mixed mixed rubber in the Under the conditions of 170°C, 20min curing time and 15 MPa curing pressure, the hydrogenated nitrile vulcanizate was vulcanized by a flat vulcanizer.

[0018] Use hydrogenated nitrile rubber with a degree of hydrogenation greater than 96% and an acrylonitrile content of 44%;

[0019] The reinforcing agent refers to one or a mixture of carbon black or zinc acrylate; further, the zinc acrylate is zinc h...

Embodiment 1

[0026] Put 100 parts of hydrogenated nitrile rubber into the open mill for mastication, add 3 parts of stearic acid, 7 parts of zinc oxide, 1 part of anti-aging agent RD, and 2 parts of anti-aging agent 445 in turn after wrapping the rolls, and knead on the open mill 5min, then add 50 parts of carbon black and knead evenly, add 4 parts of triallyl isocyanurate and 7 parts of dicumyl peroxide and knead evenly, pack into triangular bags, and make a kneading glue. After the mixed rubber is cooled for 24 hours, put it into the mold and vulcanize it in a flat vulcanizer. The vulcanization temperature is 170°C, the vulcanization time is 15 minutes, and the vulcanization pressure is 15 MPa. The properties are shown in Table 1, wherein the carbon black is carbon black 330.

Embodiment 2

[0028] Put 100 parts of hydrogenated nitrile rubber into the open mill for masticating, add 3 parts of stearic acid, 5 parts of zinc oxide, 1 part of anti-aging agent RD, and 2 parts of anti-aging agent 445 in turn after wrapping the rolls and mix on the open mill Refining for 5 minutes, then adding 50 parts of zinc hydroxide monomethacrylate and mixing evenly, adding 7 parts of triallyl isocyanurate and 9 parts of dicumyl peroxide and mixing evenly, then making triangular bags, Botong The next piece is made into rubber compound. After the mixed rubber is cooled for 24 hours, put it into the mold and vulcanize it in a flat vulcanizer. The vulcanization temperature is 170°C, the vulcanization time is 15 minutes, and the vulcanization pressure is 15 MPa. The properties are shown in Table 1.

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Abstract

The invention discloses a preparation method of a reinforced hydrogenated butyronitrile composite material. The preparation method comprises the steps: firstly, placing hydrogenated butyronitrile rubber in a mixing mill for plasticating, after a roller is coated with the hydrogenated butyronitrile rubber, successively adding stearic acid, a metal oxide and an anti-aging agent into the mixing mill to mix for 5 min, then adding a reinforcing agent, mixing evenly, followed by adding a vulcanizing agent and a vulcanizing auxiliary agent, mixing evenly, and then carrying out mill run and batching-off to obtain mixed rubber; under conditions of the temperature of 170 DEG C, the vulcanization time of 20 min and the vulcanization pressure of 15 MPa, vulcanizing the mixed rubber after mixing to form the hydrogenated butyronitrile vulcanized rubber by a flat-plate vulcanizing machine. With adopting of acrylate, carbon black or a mixture thereof as the reinforcing agent, the rubber composite material with excellent performance is prepared; and a rubber canister processed form the material has good sealing effect under the temperature of 170 DEG C and the pressure difference of 30-60 MPa, and the prepared rubber has high mechanical properties and aging resistance at the room temperature or the high temperature, and can work in an oil medium under the temperature of 170 DEG C and the pressure of 30-60 MPa for a long time.

Description

technical field [0001] The invention relates to a preparation method of a reinforced hydrogenated nitrile composite material, which is mainly used for rubber seals under high temperature and high pressure working conditions in low-permeability reservoir oil production engineering, and belongs to the technical field of rubber composite material preparation. Background technique [0002] With the deepening of oil and gas field development, domestic oil fields will gradually turn to deep wells, ultra-deep wells and thermal recovery wells, unconventional, low-permeability reservoirs, and use staged water injection, staged fracturing, and staged water shutoff for construction. In the implementation of the above-mentioned oil recovery engineering process, the oilfield packer is a key component in the oil recovery process, and the rubber sleeve is the key to the packer. Under the action of hydraulic thrust, the rubber sleeve acts on the wall of the packer casing through the action ...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08K13/02C08K5/09C08K3/22C08K5/098C08K3/04B29C35/02C09K8/40
Inventor 李再峰王增林孙宝全谷开召张福涛李敢
Owner QINGDAO UNIV OF SCI & TECH
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