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Low-compression-deformation fluororubber premix and preparation method thereof

A fluorine rubber, low compression technology, applied in the field of low compression deformation fluorine rubber premixed rubber and its preparation, can solve the problems that the compression deformation rate has not reached the ideal level, the compression deformation has not been effectively improved, and the raw rubber preparation process is cumbersome, etc., to achieve Good hot tear performance, low compression set, and simple process

Active Publication Date: 2015-04-01
SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has no significant improvement in compression set
[0007] Patent 103772859A relates to a modified fluororubber compound and its preparation method, the purpose of which is to prepare a modified fluororubber compound resistant to low temperature and chemical substances, and the raw rubber used is a modified binary fluororubber , containing a peroxide vulcanization point monomer, the raw rubber preparation process is cumbersome and difficult to obtain
[0008] Patent 103923419A discloses a colored fluororubber suitable for low temperature and low compression deformation and its preparation method. Its purpose is to prepare colored fluororubber suitable for low temperature and low compression deformation. The focus of its preparation is colored fluororubber, and the compression deformation rate has not reached the ideal level.

Method used

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  • Low-compression-deformation fluororubber premix and preparation method thereof
  • Low-compression-deformation fluororubber premix and preparation method thereof
  • Low-compression-deformation fluororubber premix and preparation method thereof

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Effect test

Embodiment 1

[0039] The low compression deformation fluororubber premix described in this embodiment is made of the following raw materials in parts by weight:

[0040]

[0041] The preparation method is as follows: thinly pass the fluororubber 26Y in the internal mixer for 10 times, and the roller temperature is 25°C; then add bisphenol AF, benzyl triphenylphosphine chloride, Rhine powder 25 and diatomaceous earth for pre-mixing 3 minutes, the temperature is controlled at 35°C; the triangular bag is thinned and passed 10 times on the open mill, the temperature of the roller is 35°C, and the sheet is discharged to obtain a low compression deformation fluororubber premixed rubber.

Embodiment 2

[0043] The low compression deformation fluororubber premix described in this embodiment is made of the following raw materials in parts by weight:

[0044]

[0045] The preparation method is as follows: thinly pass fluororubber 26Y in the internal mixer for 12 times, and the roller temperature is 30°C; then add bisphenol AF, benzyl triphenylphosphine chloride, Rhine powder 54 and barium sulfate for pre-mixing for 5 minutes , the temperature is controlled at 35°C; the triangular bag is thinned and passed 15 times on the open mill, the temperature of the roller is 50°C, and the sheet is discharged to obtain a low compression deformation fluororubber premixed rubber.

Embodiment 3

[0047] The low compression deformation fluororubber premix described in this embodiment is made of the following raw materials in parts by weight:

[0048]

[0049] The preparation method is as follows: thinly pass fluorine rubber 246K in the internal mixer for 15 times, and the roller temperature is 50°C; then add bisphenol AF, benzyl triphenylphosphine chloride, Rhine powder 25 and calcium silicate for pre-mixing For 4 minutes, the temperature was controlled at 50°C; the triangular bag was beaten on the open mill for 12 times, the temperature of the roller was 55°C, and the sheet was discharged to obtain a low compression deformation fluororubber premixed rubber.

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Abstract

The invention belongs to the technical field of fluorochemical industry and particularly relates to a low-compression-deformation fluororubber premix and a preparation method thereof. The fluororubber premix is prepared from the following raw materials in parts by weight: 100 parts of modified crude fluororubber, 1.6-3.0 parts of a vulcanizing agent, 0.4-0.8 part of an accelerant, 0.5-2.2 parts of a release agent and 2.0-10.0 parts of a filling agent. A rubber compound prepared from the low-compression-deformation fluororubber premix is relatively low in permanent compression deformation rate and good in tensile strength. The preparation method is simple, feasible, and easy to realize.

Description

technical field [0001] The invention belongs to the technical field of fluorine chemical industry, and in particular relates to a low-compression-deformation fluororubber premix and a preparation method thereof. Background technique [0002] Fluorine rubber refers to a synthetic polymer elastomer with fluorine atoms attached to the carbon atoms of the main chain or side chain. Fluorine rubber products can be provided in the form of raw rubber, compound rubber, and vulcanized rubber. If it is provided in the form of raw rubber, vulcanizing agents and accelerators need to be added during use, because it is extremely difficult to disperse during processing and use. If the dispersion is uneven, the quality will be unstable and the product performance will decline. For this reason, the vulcanizing agent and accelerator can be added to the fluororubber in advance, and the fluororubber pre-mixed rubber product can be made into the product, so as to ensure the processing performanc...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08K13/02C08K5/136C08K5/50C08K3/34C08K3/36
CPCC08K3/30C08K3/34C08K5/136C08K5/50C08K13/02C08K2003/3045C08K2201/014C08L27/16C08L2205/025C08L91/06C08K3/36
Inventor 王军岳广徐丽娟王汉利
Owner SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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