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Multidimensional composite inorganic particle/tetrafluoroethylene-propylene rubber composite material

A technology of tetrapropylene fluororubber and inorganic particles is applied in the field of polymer materials, which can solve the problems of mechanical properties decline of tetrapropylene fluororubber and material failure.

Inactive Publication Date: 2015-01-28
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, high temperature and high pressure H 2 S / CO 2 The exploitation of oil and gas resources in the environment has brought challenges to rubber sealing materials
[0003] Tetrapropylene fluorine rubber is a kind of rubber with resistance to hydrogen sulfide corrosion, but its vulcanization system is generally peroxides such as dicumyl peroxide, and the auxiliary crosslinking agent is mainly triallyl isocyanurate (TIAC) ), etc., the final cross-linked structure contains amide groups, which will decompose in an acid environment, which will reduce the mechanical properties of tetrapropylene fluoro rubber and cause material failure

Method used

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Experimental program
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Effect test

Embodiment 1-5 and comparative example 1

[0011] The tetrapropylene fluorine rubber (aflas100H) produced by Asahi Glass was used as the main material, 100 parts (by weight), and the rubber composite material meeting the requirements of the present invention was prepared according to the formula shown in Table 1.

[0012] The hydrogen sulfide, hydrochloric acid and sodium hydroxide corrosion tests were carried out on the vulcanized test pieces, and the results after corrosion are shown in Table 2. As can be seen from Table 2, the present invention can obtain tetrapropylene fluorine rubber composite material with good temperature resistance, pressure resistance, acid resistance and hydrogen sulfide performance.

[0013] Table 1

[0014]

[0015]

[0016] Table 2

[0017]

[0018] 1 Corrosion conditions: temperature 100°C, total pressure 6.9MPa, gas composition is H 2 S: 20±2%, CO 2 : 5±1%, CH 4 : 75±3%, the liquid phase composition is n-hexane: 25±1%, n-octane: 20±1%, n-decane: 50±1%, n-toluene: 5±0.5%, ti...

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Abstract

The invention relates to a multidimensional composite inorganic particle / tetrafluoroethylene-propylene rubber composite material. In the composite material, tetrafluoroethylene-propylene rubber is taken as a main body material, composite inorganic particles with different dimensions are added, and the surfaces of the inorganic particles can have double bonds which can participate in cross-linking reaction through surface modification. The added composite particles can effectively improve the temperature resistance, hydrogen sulfide resistance and carbon dioxide resistance of the tetrafluoroethylene-propylene rubber.

Description

technical field [0001] The invention relates to a multi-dimensional composite inorganic particle / tetrapropyl fluororubber composite material, which is a polymer material used in a high-temperature, high-pressure hydrogen sulfide carbon dioxide environment. Background technique [0002] With the sharp reduction of easy-to-exploit oil and gas resources, the environment for oil and gas exploitation is becoming increasingly harsh, and higher requirements are placed on oil and gas equipment. Among them, high temperature and high pressure H 2 S / CO 2 The exploitation of oil and gas resources in the environment has brought challenges to rubber sealing materials. [0003] Tetrapropylene fluorine rubber is a kind of rubber with resistance to hydrogen sulfide corrosion, but its vulcanization system is generally peroxides such as dicumyl peroxide, and the auxiliary crosslinking agent is mainly triallyl isocyanurate (TIAC) ), etc., the final cross-linked structure contains amide group...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08K13/06C08K9/06C08K5/098C08K5/14C08K3/04C08K7/14C08K7/06C08K7/00C08K3/40C08K3/34C08K5/3492
Inventor 孟晓宇丛川波周琼刘旭
Owner CHINA UNIV OF PETROLEUM (BEIJING)