Fluorubber gross rubber and preparation method thereof

A fluororubber raw rubber and rubber mixing technology, applied in the rubber field, can solve the problems of limited promotion and application, complex processing technology, high fluororubber price, and achieve the effects of simple preparation process, low raw material cost and high thermal tear strength.

Inactive Publication Date: 2014-11-05
蔡德扬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the processing technology of fluororubber in the prior art is usually more complicated, and the fluidity in the processing process is poor, and the price of fluororubber is higher, which also greatly limits its promotion and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Combine 45 parts of high Mooney fluorine rubber, 45 parts of medium Mooney fluorine rubber, 7 parts of active magnesium oxide, 5 parts of calcium hydroxide, 8 parts of diatomaceous earth, 2 parts of Brazilian wax, 2 parts of brightener, high temperature 2 parts of grass green, 1 part of titanium dioxide, 2 parts of bisphenol AF, and 1 part of vulcanization accelerator BPP are added to the internal mixer and mixed evenly at a stirring speed of 50r / min, stirring time 40min, and then at a temperature of 100℃ and a pressure of Mix for 45min under the condition of 10KN and the speed of the internal mixer at 50r / min, then cool to 20℃, and pass through 3 times, then open the mixer on the open mixer, and finally slice according to the thickness requirement.

Embodiment 2

[0039] Combine 50 parts of high Mooney fluorine rubber, 50 parts of medium Mooney fluorine rubber, 9 parts of activated magnesium oxide, 8 parts of calcium hydroxide, 10 parts of diatomaceous earth, 3 parts of Brazilian wax, 2 parts of brightener, high temperature 2 parts of grass green, 1 part of titanium dioxide, 3 parts of bisphenol AF, and 1.5 parts of vulcanization accelerator BPP are added into the internal mixer and mixed evenly. The stirring speed is 50r / min, the stirring time is 40min, and then the temperature is 100℃ and the pressure is Mix for 45 minutes at 10KN and the speed of the internal mixer at 50r / min, then cool to 20°C, and pass through 3 times, then open the mixer on the open mixer, and finally slice according to the thickness requirement.

Embodiment 3

[0041] Combine 50 parts of high Mooney fluorine rubber, 50 parts of medium Mooney fluorine rubber, 9 parts of activated magnesium oxide, 8 parts of calcium hydroxide, 11 parts of diatomaceous earth, 5 parts of Brazilian wax, 4 parts of brightener, high temperature 3 parts of grass green, 2 parts of titanium dioxide, 4 parts of bisphenol AF, and 3 parts of vulcanization accelerator BPP are added into the internal mixer and mixed evenly. The stirring speed is 50r / min, the stirring time is 40min, and then the temperature is 100℃ and the pressure is Mix for 45 minutes at 10KN and the speed of the internal mixer at 50r / min, then cool to 20°C, and pass through 3 times, then open the mixer on the open mixer, and finally slice according to the thickness requirement.

[0042] Performance data:

[0043] Test items Example one Example two Example three Hardness (IRHD)818980 Tensile strength at break (MPa)15.417.815.5 Elongation at break (%)264280260 Breaking strength (KN / m)16.521.217 ...

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PUM

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Abstract

The invention discloses a fluorubber gross rubber comprises high Mooney fluorine raw rubber, medium Mooney fluorine rubber raw rubber, active magnesium oxide, calcium hydroxide, diatomite, Brazil wax, a brightener, high-temperature resistant grass green, titanium dioxide, bisphenol AF and a vulcanization accelerator BPP. The fluorubber gross rubber has good fluidity in processing, is easy for processing, and has high hot tear strength.

Description

Technical field [0001] The invention relates to a fluorine rubber compounding rubber and a preparation method thereof, and belongs to the technical field of rubber. Background technique [0002] Fluorine rubber is a synthetic polymer elastomer containing fluorine atoms on the carbon atoms of the main chain or side chain. It is widely used in many fields such as aerospace, military industry, national defense, automobiles, and petrochemicals. Fluorine rubber has good high temperature resistance, radiation resistance, oil resistance, solvent resistance, corrosion resistance, chemical resistance, strong oxidant resistance and other characteristics and good physical properties. It is resistant to oil and other harsh working environments such as seals, hoses and gaskets. Best glue type. As an important physical property, the hot tear strength of fluororubber plays a decisive role in effective sealing. Improving the hot tear strength of fluorine rubber can expand the application range...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K3/22C08K3/34
Inventor 蔡德扬
Owner 蔡德扬
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