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Modified fluororubber rubber compound and preparation method thereof

A technology of modified fluororubber and rubber compound, which is applied in the field of material science and engineering, can solve the problems of complex synthesis process of perfluoroether rubber, failure to meet requirements, high production cost, etc., and achieve excellent resistance to alcohol fuels and chemical media, Reduced Low Temperature Performance, Affordable Effects

Active Publication Date: 2014-05-07
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complexity of the synthesis process of perfluoroether rubber and the high production cost, how to prepare perfluoroether rubber with excellent properties such as high heat resistance, cold resistance, low permeability and fuel resistance has long been a problem in our country. A technical problem for R&D personnel in related technical fields
At present, the technology of perfluoroether rubber in our country has not yet been overcome, and it can only be satisfied by imports, and the price is quite expensive, so it cannot replace the existing ordinary fluororubber varieties.
The adjustment of the formula can not meet the requirements. Because of this, on the basis of ensuring excellent physical properties and processing performance, the low temperature and alcohol fuel oil of the rubber compound can be improved by adjusting the raw rubber in the fluorine compound rubber and the formula system. , chemical properties, to meet the needs of all walks of life is extremely necessary

Method used

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  • Modified fluororubber rubber compound and preparation method thereof
  • Modified fluororubber rubber compound and preparation method thereof
  • Modified fluororubber rubber compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation of Embodiment 1 Fluorine Rubber Compound (1)

[0044] The formulation of fluororubber compound with low temperature resistance and chemical medium is as follows.

[0045] Modified binary fluororubber (REM260) 100

[0046] Magnesium oxide 4

[0047] calcium hydroxide 5

[0048] Carbon black filler 20

[0049] Calcium fluoride 10

[0050] Release agent 1.5

[0051] Bisphenol AF 2.0

[0052] Benzyltriphenylphosphonium chloride 0.4

[0053] Modified diatomaceous earth 5

[0054] Double 2.5 1.0

[0055] TAIC 2.0

[0056] The above-mentioned release agent is WS280.

[0057] The above-mentioned modified diatomite is obtained by physically treating diatomite and silica with an aminosilane coupling agent containing four functional groups.

Embodiment 2

[0058] Preparation of embodiment 2 fluorine rubber compound (2)

[0059] The formulation of fluororubber compound with low temperature resistance and chemical medium is as follows.

[0060] Modified binary fluororubber (REM260) 100

[0061] Magnesium oxide 6

[0062] calcium hydroxide 7

[0063] Carbon black filler 25

[0064] Calcium fluoride 20

[0065] Release agent 2.0

[0066] Bisphenol AF 2.2

[0067] Benzyltriphenylphosphonium chloride 0.5

[0068] Modified diatomaceous earth 7

[0069] Double 2.5 1.2

[0070] TAIC 2.4

[0071] The above-mentioned release agent is Rhine Powder

[0072] The above-mentioned modified diatomite is obtained by physical treatment of diatomite and silica powder through aminosilane coupling agent containing four functional groups.

Embodiment 3

[0073] Preparation of Embodiment 3 Fluorine Rubber Compound (3)

[0074] The formulation of fluororubber compound with low temperature resistance and chemical medium is as follows.

[0075] Modified binary fluororubber (REM260) 100

[0076] Magnesium oxide 7

[0077] calcium hydroxide 8

[0078] Carbon black filler 30

[0079] Calcium fluoride 30

[0080] Release agent 3.0

[0081] Bisphenol AF 2.5

[0082] Benzyltriphenylphosphonium chloride 0.6

[0083] Modified diatomaceous earth 7

[0084] Double 2.5 1.5

[0085] TAIC 2.8

[0086] The above mold release agent is obtained by mixing Rhine powder and WS280 in 1:1 parts by weight.

[0087] The above-mentioned modified diatomite is obtained by physical treatment of silica and silica powder through aminosilane coupling agent containing four functional groups.

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Abstract

The invention provides a modified fluororubber rubber compound and a preparation method thereof. The fluororubber takes modified binary fluororubber as a raw material; meanwhile, two vulcanization agent manners including a bisphenol vulcanization system and a peroxide vulcanization system are combined to carry out vulcanization; an auxiliary agent is increased and matched, and is mixed with the material to prepare the modified fluororubber rubber compound. The modified fluororubber rubber compound has excellent high heat resistance, cold resistance, low permeability and fuel oil resistance, and is applicable to industries including aerospace, aviation, cars, metallurgy, petrochemical engineering, electronics and the like; the performance on a sealing application is not too low and a problem caused by that an application environment is changed is not caused; the modified fluororubber rubber compound can be used as the first choice of a sealing material.

Description

technical field [0001] The invention relates to the technical field of material science and engineering, in particular to an improved fluorine rubber compound with low temperature resistance and chemical substances and a preparation method thereof. Background technique [0002] Fluorine rubber is a new type of polymer material, which has excellent heat resistance, medium resistance and oil resistance, as well as good physical and mechanical properties, electrical insulation and radiation resistance, etc., known as the "King of Rubber". [0003] 60-70% of fluorine rubber is used in the automobile industry. Nowadays, with the development of light weight, high performance and low fuel consumption of automobiles, green fuels containing alcohol and ether are widely used in automobiles, and the emission standards of motor vehicles are continuously improved. The demand for high-performance fluorine compounds is strong. However, due to the limitation of existing materials in the f...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08K13/06C08K9/00C08K3/34C08K3/22C08K3/04C08K5/13C08K5/14C08K3/16C08J3/24
Inventor 邢华艳张建新刘斌
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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