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A kind of fluorine rubber with high temperature and high pressure resistance and hydrofluoric acid resistance and preparation method thereof

A technology of hydrofluoric acid resistance and high temperature resistance, applied in the field of new materials, can solve the problems of low qualified rate of sealing products, poor hydrofluoric acid resistance, poor fluororubber process performance, etc., to improve tensile strength at break and compression resistance. performance, shorten vulcanization time, and improve production efficiency

Active Publication Date: 2017-07-11
湖北派克密封件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of science and technology, the use environment of rubber sealing materials is becoming more and more harsh, especially in the petrochemical industry, the depth of oil drilling is getting deeper and deeper, and the pressure and temperature are getting higher and higher. Hydrofluoric acid, which corrodes rubber seals greatly, seriously affects the use of the overall equipment
However, the existing fluororubber products have poor hydrofluoric acid resistance under high temperature and high pressure environment, and high pressure resistant fluororubber generally requires high hardness, but the process performance of high hardness fluororubber is poor, and the qualified rate of the sealing products produced is low

Method used

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  • A kind of fluorine rubber with high temperature and high pressure resistance and hydrofluoric acid resistance and preparation method thereof
  • A kind of fluorine rubber with high temperature and high pressure resistance and hydrofluoric acid resistance and preparation method thereof
  • A kind of fluorine rubber with high temperature and high pressure resistance and hydrofluoric acid resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of fluorine rubber resistant to high temperature and high pressure and hydrofluoric acid, the distribution ratio of each component is shown in Table 1,

[0024] Table 1 Fluororubbers resistant to high temperature and high pressure and hydrofluoric acid

[0025] serial number Raw material name parts by weight 1 G series fluorine rubber 80 2 Perfluoroelastomer 20 3 Carbon black N990 55 4 Vulcanizing agent 101 powder 2 5 Vulcanization aid TAIC-70 3 6 palm wax 1 7 dispersion flow aid 2

[0026] The high-temperature, high-pressure and hydrofluoric acid-resistant fluororubber described in this example is prepared by the following method:

[0027] (1) Weigh 80 parts of fluorine rubber raw rubber and 20 parts of perfluoroether rubber according to the weight ratio, place the fluorine rubber raw rubber and perfluoroether rubber on an open mill, mix evenly and pass through;

[0028] (2) 55 parts of nano-carb...

Embodiment 2

[0034] A kind of fluorine rubber resistant to high temperature and high pressure and hydrofluoric acid, the distribution ratio of each component is shown in Table 3,

[0035] Table 3 Viton rubber with high temperature and high pressure resistance and hydrofluoric acid resistance

[0036] serial number Raw material name parts by weight 1 G series fluorine rubber 70 2 Perfluoroelastomer 30 3 Carbon black N990 60 4 Vulcanizing agent 101 powder 3 5 Vulcanization aid TAIC-70 4 6 palm wax 2 7 dispersion flow aid 3

[0037] The high-temperature, high-pressure and hydrofluoric acid-resistant fluororubber described in this example is prepared by the following method:

[0038] (1) Weigh 70 parts of fluorine rubber raw rubber and 30 parts of perfluoroether rubber according to the weight ratio, place the fluorine rubber raw rubber and perfluoroether rubber on an open mill, mix evenly and pass through;

[0039] (2) 60 parts...

Embodiment 3

[0046] A kind of fluorine rubber resistant to high temperature and high pressure and hydrofluoric acid, the distribution ratio of each component is shown in Table 5,

[0047] Table 5 Fluororubbers resistant to high temperature and high pressure and hydrofluoric acid

[0048] serial number Raw material name parts by weight 1 G series fluorine rubber 60 2 Perfluoroelastomer 40 3 Carbon black N990 60 4 Vulcanizing agent 101 powder 4 5 Vulcanization aid TAIC-70 4 6 palm wax 2 7 dispersion flow aid 4

[0049] The high-temperature, high-pressure and hydrofluoric acid-resistant fluororubber described in this example is prepared by the following method:

[0050] (1) Weigh 60 parts of fluorine rubber raw rubber and 40 parts of perfluoroether rubber according to the weight ratio, place the fluorine rubber raw rubber and perfluoroether rubber on an open mill, mix evenly and pass through;

[0051] (2) 60 parts of nano-carb...

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Abstract

The invention belongs to the technical field of preparation of high-tech macromolecule structural materials, and in particular relates to a high-temperature, high-pressure and hydrofluoric acid-resistant fluororubber and a preparation method thereof. The components of the fluororubber are calculated in parts by weight: 60-80 parts of raw fluororubber, 20-40 parts of perfluoroether rubber, 55-60 parts of nano-carbon black, and 2-4 parts of peroxide vulcanizing agent , 3-5 parts of vulcanization aid, 1-3 parts of dispersing flow agent, 2-4 parts of dispersing flow aid; wherein the sum of fluoro rubber raw rubber and perfluoroether rubber is 100 parts. The fluorine rubber material prepared by the invention can meet the sealing function under high temperature (250°C-300°C) high pressure (120MPa-150MPa) strong acid (hydrofluoric acid) working conditions.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a high-temperature, high-pressure and hydrofluoric acid-resistant fluororubber and a preparation method thereof. Background technique [0002] Fluorine rubber is a synthetic polymer elastomer with fluorine atoms on the carbon atoms of the main chain or side chain, which is widely used in aerospace, military industry, automobile, petrochemical and other fields. With the development of science and technology, the use environment of rubber sealing materials is becoming more and more harsh, especially in the petrochemical industry, the depth of oil drilling is getting deeper and deeper, and the pressure and temperature are getting higher and higher. Hydrofluoric acid is more corrosive to rubber seals, which seriously affects the use of the overall equipment. However, the existing fluororubber products have poor hydrofluoric acid resistance under high temperature an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08L71/03C08L91/06C08K3/04C08K5/14C08K5/3492B29C35/02
Inventor 梁宇郑磊
Owner 湖北派克密封件有限公司
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