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Screw pump rubber stator material and preparation method thereof

A rubber stator and screw pump technology, applied in the field of stator materials and their preparation, can solve the problems of poor mechanical properties and high cost, and achieve the effects of improving barrier properties, reducing dosage and reducing costs.

Inactive Publication Date: 2010-01-13
HARBIN INST OF TECH
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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 screw pump rubber Stator material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific embodiment one: The rubber stator material of the screw pump in this embodiment consists of 100 parts of hydrogenated nitrile rubber, 8 to 12 parts of organic montmorillonite, 1 to 3 parts of nano-zinc oxide, and 0.8 to 1.2 parts of hard ester according to the ratio of parts by mass. Acid, 8-12 parts of 2,5-dimethyl-2,5-di(t-butyl peroxy)ethane dispersion DBPH-50 with a mass concentration of 50%, 0-10 parts of bifunctional methacrylic acid Ester SR521, 0-15 parts of 1,2 polybutadiene dispersion Ricobond 1756, 8-12 parts of activated magnesium oxide Kyowamag150, 38-42 parts of carbon black N550, 23-27 parts of carbon black N774, 0.9-1.3 parts of 4' 4-bis(2,2-dimethylbenzyl)diphenylbenzylamine Naugard 445, 0.3-0.5 parts of methylthiolbenzimidazole zinc Vulkenox ZMB-2, 8-12 parts of polysebacate G- 25. Made of 2-4 parts of zinc oxide whisker T-ZnOw and 1-3 parts of fatty acid zinc salt Aktiptast PP.

specific Embodiment approach 2

[0010] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the rubber stator material of the screw pump consists of 100 parts of hydrogenated nitrile rubber, 9 to 11 parts of organic montmorillonite, and 1.5 to 2.5 parts of nano-oxidized Zinc, 0.9-1.1 parts of stearic acid, 9-11 parts of 2,5-dimethyl-2,5-bis(t-butyl peroxide)ethane dispersion DBPH-50 with a mass concentration of 50%, 1 ~8 parts of bifunctional methacrylate SR521, 2~12 parts of 1,2 polybutadiene dispersion Ricobond 1756, 9~11 parts of activated magnesium oxide Kyowamag150, 39~41 parts of carbon black N550, 24~26 parts of carbon black N774, 1~1.2 parts of 4'4-bis(2,2-dimethylbenzyl)diphenylbenzylamine Naugard 445, 0.35~0.45 parts of methylthiol benzimidazole zinc Vulkenox ZMB-2, 9~11 It is made of polysebacate G-25, 2.5-3.5 parts of zinc oxide whiskers T-ZnOw and 1.5-2.5 parts of fatty acid zinc salt Aktiptast PP. 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 rubber stator material of the screw pump consists of 100 parts of hydrogenated nitrile rubber, 8 parts of organic montmorillonite, 1 part of nano-zinc oxide, 0.8 part Stearic acid, 8 parts of mass concentration are 50% 2,5-dimethyl-2,5-di(t-butyl peroxide) ethane dispersion DBPH-50, 0 parts of bifunctional methacrylate SR521 , 15 parts of 1,2 polybutadiene dispersion Ricobond 1756, 8 parts of activated magnesium oxide Kyowamag150, 38 parts of carbon black N550, 23 parts of carbon black N774, 0.9 parts of 4'4-bis(2,2-dimethylbenzyl Base) Diphenylbenzylamine Naugard 445, 0.3 parts methylmercaptobenzimidazole zinc Vulkenox ZMB-2, 8 parts polysebacate G-25, 2 parts zinc oxide whiskers T-ZnOw and 1 part zinc fatty acid Salt made of Aktiptast PP. Others are the same as in the first embodiment.

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Abstract

The invention relates to a screw pump rubber stator material and a preparation method thereof. The invention solves the problems of high cost and poor mechanical property existing in the prior art of only adopting hydrogenated nitrile-butadiene rubber as the raw material to prepare a screw pump rubber stator. The screw pump rubber stator material is prepared from HNBR, OMMT, nanometer zinc oxide, stearic acid, DBPH-50, SR521, Ricobond 1756, Kyowamag150, N550, N774, Naugard 445, Vulkenox ZMB-2, G-25, T-ZnOw and Aktiptast PP. The method comprises the following steps: 1, weighing the raw materials; 2, melting, intercalating and then mixing HNBR and OMMT after being mixed, mixing continually after adding remaining raw materials; 3, repeating the step 2 to obtain photographic film, vulcanizing after air cooling for 16 hours to obtain the screw pump rubber stator material. The invention has the advantages of simple process, low cost and good mechanical property of the obtained material.

Description

technical field [0001] The present invention relates to a stator material and a method for its preparation. Background technique [0002] The screw pump is a widely used oil extraction machine. It has a simple structure and is especially suitable for oil wells with high viscosity and high sand content and has high working efficiency. However, the working conditions of the screw pump are very harsh, and its service life depends on the rubber stator. lifespan. The preferred material for the rubber stator of the screw pump is hydrogenated nitrile rubber (HNBR), which is a new type of saturated oil-resistant rubber developed in the 1980s abroad. High temperature resistance of 150°C, good oil resistance and wear resistance, and 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 can maintain good mechanical properties. [0003] At present, the production process of hydrogenated nitrile rubber is complex and expensive, resulti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08K13/06B29B7/72B29C35/02
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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