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.
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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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