Fluororubber compound, preparation method and application thereof

A technology of fluororubber and compound rubber, which is applied in the field of rubber to achieve the effects of improving elasticity and mechanical properties, low compression set performance, and excellent elastic deformation

Active Publication Date: 2021-04-09
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

[0007] So far, no fluororubber with high elasticity and low pressure deformation has been developed at the same time with extremely low hardness in the prior art.

Method used

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  • Fluororubber compound, preparation method and application thereof
  • Fluororubber compound, preparation method and application thereof
  • Fluororubber compound, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a fluorine rubber compound prepared from the following components:

[0053]

[0054]

[0055] The preparation method of the modified N762 carbon black filler is as follows: after mixing the carbon black N762 with 1 to 3% of a four-functional silane coupling agent for 2 hours, and then airtightly storing it for 12 hours;

[0056] The preparation method of described fluororubber compound rubber is as follows:

[0057] (1) According to the formula ratio, bisphenol AF, BPP, CGUF201, magnesium oxide 170, ultrafine calcium hydroxide NICC5000, WS280, and A54 are pre-prepared according to the amount of 10kg of raw rubber per vehicle, and are sealed and mixed in the container to prevent auxiliary Agent failure;

[0058] (2) Shear and mix CGFT600A and FKM26H01M in the state of open kneading, so that the two are evenly kneaded together, parked, and stored in an airtight manner; in the pressurized internal mixer, add raw rubber after mixing Mixing t...

Embodiment 2

[0063] This embodiment provides a fluorine rubber compound prepared from the following components:

[0064]

[0065]

[0066] The preparation method of the modified N762 carbon black filler and the preparation method of the fluorine rubber compound are the same as in Example 1.

Embodiment 3

[0068] This embodiment provides a fluorine rubber compound prepared from the following components:

[0069]

[0070] The preparation method of the modified N762 carbon black filler and the preparation method of the fluorine rubber compound are the same as in Example 1.

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PUM

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Abstract

The invention relates to the technical field of rubber, in particular to a fluororubber compound, a preparation method and application thereof. The fluororubber compound is prepared from the following raw materials by weight: 100 parts of fluororubber modified raw rubber, 2-5 parts of modified liquid fluororubber, 1.2-2.8 parts of a polyol vulcanizing aid, 1-5 parts of a modified carbon black filler and 1-10 parts of a high-reinforcement white filler. The preparation method of the fluororubber compound comprises the following steps of: (1) mixing the polyol vulcanizing aid, the high-reinforcement white filler, an acid acceptor and a release agent; (2) shearing and mixing the fluororubber modified raw rubber and the modified liquid fluororubber in an open mixing state, and then carrying out internal mixing; (3) adding the mixed additive obtained in the step (1) and modified carbon black filler into the mixed raw rubber, and performing refining; and (4) conducting remilling and thinning in an open mill in the form of a triangular packet. The fluororubber compound disclosed by the invention has high elasticity and low pressure change performance under the condition of extremely low hardness, and can be applied to the fields of automobiles, spaceflight and the like.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a fluorine rubber compound and its preparation method and application. Background technique [0002] In the rubber industry, fluorine rubber has incomparable excellent properties of other rubbers. It is a new type of polymer material with excellent heat resistance, medium resistance and oil resistance, as well as good physical and mechanical properties, electrical insulation and radiation resistance. Sex, etc., known as the "King of Rubber". It is widely used in automobile manufacturing, petrochemical, machinery manufacturing, aerospace, construction engineering and other fields. [0003] Vinylidene fluoride-hexafluoropropylene (VDF-HFP), vinylidene fluoride-chlorotrifluoroethylene (VDF-CTFE), vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene (VDF-HFP-TFE), tetrafluoroethylene Fluoroethylene (TFE)-perfluoro(alkyl vinyl ether) or the above-mentioned fluoroelastomers wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/20C08L27/22C08L27/18C08K13/06C08K9/06C08K3/04C08K5/136B29B7/74
CPCC08L27/20B29B7/7495C08L2205/03C08L2205/02C08L27/22C08L27/18C08K13/06C08K9/06C08K3/04C08K5/136B29B7/183B29B7/90B29B7/005B29B7/286
Inventor 邢华艳汪仲权
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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