Low-temperature-resistant automobile sealing rubber strip and preparation method thereof

The invention discloses a low-temperature-resistant automobile sealing rubber strip and a preparation method thereof. According to a standard identification formula, the low-temperature-resistant automobile sealing rubber strip is prepared from the following components: 100 parts of novel low-temperature-resistant butyronitrile ester rubber, 1 part of stearic acid, 5 parts of zinc oxide, 40 parts of carbon black N770, 5 parts of a plasticizer TP-95, 2 parts of an anti-aging agent 4020, 0.5 parts of an anti-aging agent TMQ, 0.2 parts of a scorch retarder CTP, 0.5 parts of an accelerant MBT, 2.5 parts of an accelerant TMTD and 0.5 parts of insoluble sulfur. The novel low-temperature-resistant butyronitrile ester rubber is a main component of the low-temperature-resistant automobile sealing rubber strip, and the novel low-temperature-resistant butyronitrile ester rubber is copolymerized from acrylonitrile, butyl acrylate and butadiene. According to the low-temperature-resistant automobile sealing rubber strip, t