High-temperature wear-resistant rubber, and preparation method and application thereof
A high-temperature wear-resistant and rubber technology, applied in the field of rubber materials, can solve the problems of short product life, easy wear, non-wear resistance, etc., and achieve the effect of improving wear performance, extending service life, and good wear resistance
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Embodiment 1
[0019] This embodiment provides a high-temperature wear-resistant rubber, which is obtained through the following steps.
[0020] Mixing: 100 parts of fluororubber, 5 parts of stabilizer, 5 parts of nano polyethylene (average particle size is 30 μm, molecular weight is 200×10 4 ), 5 parts of polytetrafluoroethylene micropowder (particle size 0.5-10 μm), 20 parts of carbon black, 1 part of benzyltriphenylphosphorous chloride, 2 parts of hexafluorobisphenol A, mixed in an internal mixer, and used The shearing stress of the rotor and the extrusion pressure generate heat, thereby uniformly dispersing various additives;
[0021] Vulcanization: At 175°C and 70kgf / cm2, react for 300s to change the rubber macromolecule from a linear structure to a network structure or a body structure to obtain rubber.
Embodiment 2
[0023] This embodiment is basically the same as Embodiment 1, the difference is:
[0024] When kneading, 100 parts of fluororubber, 1 part of stabilizer, 20 parts of nano polyethylene (average particle diameter is 30 μ m, molecular weight is 200 × 10 4 ), 20 parts of tetrafluoroethylene micropowder (with a particle size of 0.5-10 μm), 30 parts of carbon black, 5 parts of benzyltriphenylphosphine chloride, and 5 parts of hexafluorobisphenol A.
Embodiment 3
[0026] This embodiment is basically the same as Embodiment 1, the difference is:
[0027] When kneading, 100 parts of fluororubber, 3 parts of stabilizer, 10 parts of nano polyethylene (average particle diameter is 30 μ m, molecular weight is 200 × 10 4 ), 10 parts of polytetrafluoroethylene micropowder (with a particle size of 0.5-10 μm), 25 parts of carbon black, 3 parts of benzyltriphenylphosphine chloride, and 4 parts of hexafluorobisphenol A.
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Abstract
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