Heat-resistant and oil-resistant butadiene-acrylonitrile rubber material as well as preparation method and application thereof
A technology of nitrile rubber and rubber compound, applied in the field of rubber sealing, can solve the problems of no compression set performance, damaged oil resistance, no given, etc., to achieve excellent processing safety, excellent thermal stability, and improved coke. The effect of burning performance
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[0045] Embodiment and comparative example are prepared according to the following methods:
[0046] (1) The preparation method of rubber compound (recipe is as shown in Table 1)
[0047] ① Add nitrile rubber to the open mill, adjust the roller distance, add zinc oxide, light magnesium oxide, stearic acid, reactive anti-aging agent and 2-mercaptobenzimidazole zinc salt in sequence after the rubber material is covered with rollers, and mix for 2~ 3 minutes until the powder is completely mixed in;
[0048] ② Add carbon black and knead for 6-8 minutes until the carbon black is completely mixed in;
[0049] ③Add peroxide and co-crosslinking agent (N,N'-m-phenylene bismaleimide and 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl radical) , kneading for 1 to 2 minutes until the powder is completely mixed in, then thin pass 3 times, take off the sheet, cool, and park to obtain a heat-resistant and oil-resistant nitrile rubber compound.
[0050] (2) Preparation of test pieces and sam...
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