Vulcanization composition for preparing hydrogenated butadiene-acrylonitrile rubber, application of vulcanization composition, hydrogenated butadiene-acrylonitrile rubber and preparation method and application of hydrogenated butadiene-acrylonitrile rubber

A technology of hydrogenated nitrile rubber and liquid nitrile rubber, which is applied in the direction of chemical instruments and methods, other chemical processes, etc., can solve the problem that the oil resistance and aging resistance of hydrogenated nitrile rubber can not meet the requirements of oil resistance and aging resistance And other problems, to achieve high oil resistance, high aging resistance effect

Pending Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the oil resistance and aging resistance of the hydrogenated nitrile butadiene rubber prepared by the existing methods still cannot well meet the high require

Method used

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  • Vulcanization composition for preparing hydrogenated butadiene-acrylonitrile rubber, application of vulcanization composition, hydrogenated butadiene-acrylonitrile rubber and preparation method and application of hydrogenated butadiene-acrylonitrile rubber
  • Vulcanization composition for preparing hydrogenated butadiene-acrylonitrile rubber, application of vulcanization composition, hydrogenated butadiene-acrylonitrile rubber and preparation method and application of hydrogenated butadiene-acrylonitrile rubber
  • Vulcanization composition for preparing hydrogenated butadiene-acrylonitrile rubber, application of vulcanization composition, hydrogenated butadiene-acrylonitrile rubber and preparation method and application of hydrogenated butadiene-acrylonitrile rubber

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Example Embodiment

[0053] However, in order to make the composition of the mixed rubber more uniform and have better mechanical properties and compression permanent deformation resistance after subsequent vulcanization, according to a preferred embodiment of the invention, the mixing comprises:

[0054] (1) Carry out one-stage mixing of component A to obtain the master compound. The component a contains hydrogenated nitrile rubber matrix, activator, reinforcing agent and plasticizer, and the component a optionally also contains antioxidant;

[0055] (2) The master batch is mixed with component B in two stages, and component B contains accelerator and vulcanizing agent.

[0056] According to a preferred embodiment of the invention, in step (1), the hydrogenated nitrile rubber matrix, activator and optional antioxidant in component A are mixed first, and then the reinforcing agent and plasticizer are introduced for one-stage mixing to obtain the master compound.

[0057] Preferably, the conditions of ...

Example Embodiment

[0093] Example 1

[0094] The formula of vulcanization composition is shown in Table 1;

[0095] The preparation process of vulcanized rubber is as follows

[0096] (1) The component A is mixed for one stage to obtain the master rubber. The component a contains hydrogenated nitrile rubber matrix, activator, reinforcing agent, plasticizer and antioxidant; The conditions of the first stage mixing include: the mixing temperature is 100 ℃, and the mixing time is 20min;

[0097] (2) Carry out two-stage mixing of the master rubber and component B, and the component B contains accelerator and vulcanizing agent. The conditions of the two-stage mixing include: the mixing temperature is 30 ℃, and the mixing time is 7min;

[0098] (3) Vulcanize the compound obtained in step (2) in a flat vulcanizer to obtain hydrogenated nitrile rubber C1. The vulcanization conditions at least meet the following requirements: temperature of 160 ℃, pressure of 15MPa and time of 10min.

[0099] The following e...

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Abstract

The invention relates to the field of vulcanized rubber, and discloses a vulcanized composition for preparing hydrogenated butadiene-acrylonitrile rubber, application of the vulcanized composition, the hydrogenated butadiene-acrylonitrile rubber and a preparation method and application of the hydrogenated butadiene-acrylonitrile rubber, and the composition contains a hydrogenated butadiene-acrylonitrile rubber matrix, a vulcanizing agent, an accelerant, an activating agent, a reinforcing agent and a plasticizer which are stored in a mixed mode or stored independently. Relative to 100 parts by weight of the hydrogenated nitrile rubber matrix, the content of the vulcanizing agent is 0.5-8 parts by weight; the content of the accelerant is 0.5 to 8 parts by weight; the content of the activating agent is 2-10 parts by weight; the content of the reinforcing agent is 20-50 parts by weight; the content of the plasticizer is 5-40 parts by weight. According to the composition disclosed by the invention, the hydrogenated nitrile rubber which has high oil resistance and high aging resistance and is suitable for a material for sealing the crude oil storage tank can be obtained through the synergistic effect of all the effective components.

Description

technical field [0001] The invention relates to the field of vulcanized rubber, in particular to a vulcanized composition for preparing hydrogenated nitrile rubber and its application, hydrogenated nitrile rubber and its preparation method and application. Background technique [0002] Due to its unique high elasticity, rubber materials are widely used as sealing products in the fields of energy, automobiles, machinery and aerospace, and are important components to prevent oil and air leakage. [0003] With the rapid development of the petroleum industry, the requirements for modern petroleum exploration, storage and transportation are increasing day by day. The rubber products used for sealing large crude oil storage tanks are related to the safety of the entire crude oil storage and transportation. Once the seal fails, the consequences will be disastrous. With the increasing scale of crude oil storage tanks and the continuous improvement of safety factors, the requirement...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L9/02C08K3/22C08K5/09C08K3/04C08K3/06C08K5/053C08K5/14C08K13/02C09K3/10
CPCC08L15/005C09K3/10C08K2003/2296C08L2201/08C08L9/02C08K3/22C08K5/09C08K3/04C08K3/06C08K5/053C08K5/14C08K13/02
Inventor 唐功庆解希铭李静孙攀赵青松王丽丽
Owner CHINA PETROLEUM & CHEM CORP
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