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Hydrogenated nitrile-butadiene rubber modified by rectorite and preparation method thereof

A hydrogenated nitrile rubber and modification technology, which is applied in the field of hydrogenated nitrile rubber and its preparation, can solve the problems of high cost and poor mechanical properties, and achieve the effects of reducing dosage, improving mechanical properties, and improving flame retardancy

Inactive Publication Date: 2010-02-17
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high cost and poor mechanical properties in the prior art of using hydrogenated nitrile rubber as a raw material to prepare screw pump rubber stators, the present invention provides a hydrogenated nitrile rubber modified by rectorite and a preparation method thereof

Method used

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specific Embodiment approach 1

[0009] Specific embodiment one: the hydrogenated nitrile rubber modified by rectorite in this embodiment is composed of 100 parts of hydrogenated nitrile rubber, 8 to 12 parts of organic rectorite, 1 to 3 parts of nano-zinc oxide, 1~3 parts of activated magnesium oxide, 1~2 parts of sulfur, 1~2 parts of 4'4-bis(2,2-dimethylbenzyl)diphenylbenzylamine Naugard445, 1~3 parts of tetramethyl autumn trisulfide Lamb TMTD, 0.2-0.8 parts of N-cyclohexyl-2-benzothiazole sulfenamide CZ, 1-2 parts of methylmercaptan benzimidazole zinc Vulkenox ZMB-2 and 6-10 parts of polysebacate G-25 made.

specific Embodiment approach 2

[0010] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the hydrogenated nitrile rubber modified by rectorite is composed of 100 parts of hydrogenated nitrile rubber, 9 to 11 parts of organic rectorite, 1~2 parts of nano zinc oxide, 1~2 parts of activated magnesium oxide, 1~1.5 parts of sulfur, 1~1.5 parts of 4'4-bis(2,2-dimethylbenzyl)diphenylbenzylamine Naugard 445, 1 ~2 parts of tetramethylthiuram disulfide TMTD, 0.3~0.7 parts of N-cyclohexyl-2-benzothiazole sulfenamide CZ, 1~1.5 parts of methylthiolbenzimidazole zinc Vulkenox ZMB-2 and Made from 7-9 parts of polysebacate G-25. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0011] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the hydrogenated nitrile rubber that adopts rectorite modification is made of 100 parts of hydrogenated nitrile rubber, 10 parts of organic rectorite, 2 parts of Nano zinc oxide, 2 parts activated magnesium oxide, 2 parts sulfur, 2 parts 4'4-bis(2,2-dimethylbenzyl) diphenylbenzylamine Naugard 445, 2 parts tetramethylthiuram TMTD , 0.4 parts of N-cyclohexyl-2-benzothiazole sulfenamide CZ, 2 parts of methyl mercaptan benzimidazole zinc Vulkenox ZMB-2 and 8 parts of polysebacate G-25. Others are the same as in the first embodiment.

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Abstract

The invention provides hydrogenated nitrile-butadiene rubber modified by rectorite and a preparation method thereof, relating to hydrogenated nitrile-butadiene rubber and a preparation method thereof,and solving the problems of high cost and poor mechanical property when hydrogenated nitrile-butadiene rubber is solely adopted as a raw material to prepare a screw pump rubber stator in the prior art. The hydrogenated nitrile-butadiene rubber modified by rectorite is prepared from hydrogenated nitrile-butadiene rubber, organic rectorite, nano-zinc oxide, active magnesium oxide, sulfur, Naugard445, TMTD, N-cyclohexyl-2-benzothiazole sulfenamide CZ, methyl mercapto benzimidazole zinc Vulkenox ZMB-2 and poly-sebacic ester G-25. The preparation method comprises the following steps: firstly, weighing raw materials; secondly, when HNBR and Rectorite are melted and intercalated after being mixed, mixing, and mixing sequentially by adding residual raw materials; and thirdly, smelting in an overturning mode to obtain a film, and vulcanizing after the film is cooled in the air for 16h to obtain the hydrogenated nitrile-butadiene rubber modified by rectorite. The hydrogenated nitrile-butadienerubber modified by rectorite and the preparation method thereof have simple process, cost reduction and good mechanical property of the obtained material.

Description

technical field [0001] The invention relates to a hydrogenated nitrile rubber and a preparation method thereof. Background technique [0002] Hydrogenated nitrile rubber (HNBR) is a new type of saturated oil-resistant rubber developed in the 1980s abroad. It has the quality of maintaining physical and mechanical properties equivalent to normal temperature at high temperatures, and can withstand high temperatures of 150 ° C for a long time. It has good oil resistance and resistance Abrasive, can better adapt to CO 2 、H 2 S and CH 4 environment (CO 2 and H 2 The S content can reach 2%), and it can maintain good mechanical properties, so it is the preferred material for the rubber stator of the screw pump. [0003] At present, the production process of hydrogenated nitrile rubber is complex and expensive, resulting in the high cost and poor mechanical properties of the rubber stator prepared solely from hydrogenated nitrile rubber, which hinders its application in the indu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L67/00C08K3/36C08K9/04C08K3/22C08K3/06C08K5/18C08K5/40C08K5/47C08K5/56B29C43/24B29C43/58B29C35/02B29B7/56B29B7/72
Inventor 刘丽邓辉张如良邵永实杨元建张天成黄玉东刘辉
Owner HARBIN INST OF TECH
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