The invention provides a modified mesoporous
molecular sieve / hydrophilic expansion waterproof rubber sealing material and a preparation method thereof. The modified mesoporous
molecular sieve / hydrophilic expansion waterproof rubber sealing material is prepared from the following raw materials in parts by weight: 100 parts of butadiene-
acrylonitrile rubber, 8-12 parts of mesoporous molecular sieves, 5-9 parts of
graphene, 15-25 parts of
bentonite-
calcium carbonate microspheres, 10-16 parts of SAP resin, 8-12 parts of tackifying resin, 1-3 parts of
stearic acid, 4-6 parts of N-phenyl-beta-
naphthylamine and 1-3 parts of a
silane coupling agent. The modified mesoporous
molecular sieve / hydrophilic expansion waterproof rubber sealing material has the advantages that the mesoporous molecular sieves are added, so that modified hydrophilic expansion rubber has relatively high
chemical stability while keeping water absorption to be constant; besides, the modified mesoporous molecular
sieve / hydrophilic expansion waterproof rubber sealing material has the advantages of high strength, durability and
reusability due to synergistic effect of
graphene and the mesoporous molecular sieves.