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A kind of octavinyl-cage silsesquioxane modified fluororubber

A technology of silsesquioxane and modified fluororubber, which is applied in the field of rubber sealing, can solve the problem of low binding force between strontium ferrite magnetic nanoparticles and rubber, and achieve excellent dynamic mechanical properties and good sealing effect

Active Publication Date: 2022-03-15
QINGDAO REGENCY OIL SEAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strontium ferrite magnetic nanoparticles prepared by this method have relatively low binding force to rubber, and it is urgent to find a modified substance with high binding force to rubber to modify the rubber.

Method used

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  • A kind of octavinyl-cage silsesquioxane modified fluororubber
  • A kind of octavinyl-cage silsesquioxane modified fluororubber
  • A kind of octavinyl-cage silsesquioxane modified fluororubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step (1) Weigh the particle size by weight to be 10 -2 μm strontium ferrite 40 parts, octaethylene-cage silsesquioxane 60 parts, fluororubber 80 parts, 95% toluene 20 parts, 4-dimethylaminopyridine 10 parts, DMEA 5 parts and two 5 parts of ethylenetriaminepentaacetic acid.

[0031] Step (2) Throw strontium ferrite, octaethylene-cage silsesquioxane, and toluene into a container protected by nitrogen gas to prepare a mixed solution, sonicate for 1 hour, and add 4-dimethylaminopyridine and DMEA, The temperature of the container was set at 100° C., and the reaction time was 10 h. After the reaction was completed, it was filtered and dried to obtain the modified octaethylene-cage silsesquioxane.

[0032] Step (3) Put the fluororubber into the internal mixer whose chamber is protected by nitrogen gas, knead for 5 minutes, and then divide the modified octaethylene-cage silsesquioxane and diethylenetriaminepentaacetic acid into equal parts After 5 parts, gradually add to the ...

Embodiment 2

[0034] Step (1) Weigh 60 parts by weight of strontium ferrite with a particle size of 10-6 μm, 80 parts of octaethylene-cage silsesquioxane, 100 parts of fluororubber, 30 parts of toluene with a concentration of 98%, 20 parts of 4-dimethylaminopyridine, 15 parts of DMEA and 15 parts of diethylenetriaminepentaacetic acid.

[0035] Step (2) Throw strontium ferrite, octaethylene-cage silsesquioxane and toluene into a container under nitrogen protection to prepare a mixed solution, ultrasonicate for 2 hours, and add 4-dimethylaminopyridine and DMEA, The temperature of the container was set at 150° C., and the reaction time was 20 h. After the reaction was completed, it was filtered and dried to obtain the modified octaethylene-cage silsesquioxane.

[0036] Step (3) Put the fluororubber into the internal mixer whose chamber is protected by nitrogen gas, knead for 10 minutes, then divide the modified octaethylene-cage silsesquioxane and diethylenetriaminepentaacetic acid into equal ...

Embodiment 3

[0038] Step (1) Weigh 50 parts of strontium ferrite with a particle size of 10-4 μm, 70 parts of octaethylene-cage silsesquioxane, 90 parts of fluororubber, and 25 parts of toluene with a concentration of ≥95% in parts by weight , 15 parts of 4-dimethylaminopyridine, 10 parts of DMEA and 10 parts of diethylenetriaminepentaacetic acid.

[0039] Step (2) Throw strontium ferrite, octaethylene-cage silsesquioxane and toluene into a container under nitrogen protection to prepare a mixed solution, ultrasonicate for 1-2 hours, and add 4-dimethylaminopyridine and DMEA, the temperature of the container was set at 120° C., and the reaction time was 15 hours. After the reaction was completed, it was filtered and dried to obtain modified octaethylene-cage silsesquioxane.

[0040] Step (3) Put the fluororubber into the internal mixer whose chamber is protected by nitrogen gas, knead for 8 minutes, and then divide the modified octaethylene-cage silsesquioxane and diethylenetriaminepentaacet...

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Abstract

The invention provides a kind of octavinyl-cage silsesquioxane modified fluororubber, the preparation raw material of the modified fluororubber comprises the following components: 60-80 parts of octavinyl-cage silsesquioxane 40-60 parts of strontium ferrite; 80-100 parts of fluororubber; 10-20 parts of 4-dimethylaminopyridine; 5-15 parts of DMEA; 5-15 parts of diethylenetriaminepentaacetic acid. The beneficial effects of the present invention are: the present invention discloses a magnetically modified fluororubber, and the seal product prepared by using this patent can solve the problems of poor elasticity and poor mechanical properties of the magnetic seal in the prior art, and can ensure After 3 million reciprocating movements, the seal still maintains a good sealing effect.

Description

technical field [0001] The invention relates to rubber sealing technology, in particular to an octavinyl-cage silsesquioxane modified fluororubber. Background technique [0002] Fluorine rubber (FKM) has excellent properties such as high temperature resistance, oil resistance, solvent resistance, and corrosion resistance to various chemicals. It is widely used in many cutting-edge fields such as modern aviation, national defense and military industry, electronic communications, aerospace, petrochemical, and machinery manufacturing. With the promulgation of "European Tire Labeling Regulations" for automobile tires, the requirements for safety, greenness and comfort of automobile tires are getting higher and higher. In recent years, the amount of fluororubber used in automobiles is also increasing, and the technology research and development of fluororubber is also advancing steadily. As an elastic material, fluorine rubber is widely used in sealing products under harsh servi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08L83/07C08K3/22C08K5/357
CPCC08L27/12C08L83/04C08K3/22C08K5/357
Inventor 姚凤霞韩志刚
Owner QINGDAO REGENCY OIL SEAL CO LTD
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