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 requirements for oil resistance and aging resistance of crude oil storage tank seals. Hydrogenated nitrile rubber with better aging properties has important practical significance

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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specific Embodiment approach

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

[0054] (1) Component A is mixed for one stage to obtain a masterbatch, which contains a hydrogenated nitrile rubber matrix, an activator, a reinforcing agent, and a plasticizer, and optionally Also contains anti-aging agents;

[0055] (2) Perform two-stage mixing of the masterbatch and component B, and the component B contains an accelerator and a vulcanizing agent.

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

Embodiment 1

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

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

[0096] (1) Component A is carried out one-stage mixing, obtains masterbatch, contains hydrogenated nitrile butadiene rubber matrix, activator, reinforcing agent, plasticizer and anti-aging agent in the described component A; The one-stage mixing Conditions include: the mixing temperature is 100°C, and the mixing time is 20 minutes;

[0097] (2) Perform two-stage mixing of the masterbatch and component B, the component B contains an accelerator and a vulcanizing agent, the conditions of the two-stage mixing include: the mixing temperature is 30°C, and the mixing temperature is 30°C. Refining time is 7min;

[0098] (3) Vulcanize the mixed rubber obtained in step (2) in a flat vulcanizer to obtain hydrogenated nitrile rubber C1. The conditions for the vulcanization at least meet: temperature is 160° C., pressure is 15 MPa, and time is 10 min...

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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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