The invention belongs to the technical field of tire rubber materials, and particularly discloses a rubber composition with high
viscosity and dimensional stability. The
adhesive is prepared from the following
raw material components in parts by
mass: 60 to 70 parts of halogenated
butyl rubber, 15 to 20 parts of brominated
isobutylene-p-methylstyrene
copolymer, 20 to 45 parts of expanded
microsphere / double-peak star branched brominated
butyl rubber composite material, 30 to 45 parts of
carbon black, 5 to 10 parts of lamellar
inorganic filler, 3 to 5 parts of alcoholic hydroxyl modified
cashew nut oil, 5 to 10 parts of phenolic tackifying resin and 2 to 5 parts of homogenizing agent RH-100. The rubber is prepared from the following components in parts by weight: 1 to 3 parts of p-phenylenediamine anti-aging agent, 1 to 3 parts of
zinc oxide, 1 to 3 parts of
magnesium oxide, 1 to 3 parts of
stearic acid, 0.5 to 1 part of
sulfur, 0.7 to 1 part of
alkylphenol disulfide, 1.0 to 1.3 parts of
thiazole accelerant and 0.5 to 0.7 part of thiuram
accelerant. The novel expanded
microsphere / double-peak star-shaped branched brominated
butyl rubber composite material prepared by a wet method is introduced, and the multi-component optimization design in the airtight layer formula is combined, so that the size
contractility of the
rubber material is reduced while the excellent bonding performance is ensured, and the
delamination and joint disconnection of the airtight layer
rubber material are effectively improved.