Preparation method for high-performance architectural sealing rubber strip

The invention discloses a preparation method for a high-performance architectural sealing rubber strip, and relates to the technical field of architectural sealing rubber strips. The method comprisesthe following steps: taking tris(2-butoxyethyl)phosphate, 2,2-dimethylpropanediol dimethacrylate, an accelerant, methylisothiazolinone, and locust bean gum, adding to a high-speed mixer in batches, uniformly mixing, to obtain a mixture A; taking chlorosulfonated polyethylene rubber, hydrogenated nitrile rubber, a crystallinity 1,2-polybutadiene resin, an anti-aging agent, sepiolite fabric, palygorskite powder and a coupling agent, adding to a rubber refining machine, adequately mixing, to obtain a mixture B; heating the mixture A, the mixture B and a crosslinking agent, melting, extrusion-molding, and drying. The sealing rubber strip is simple and convenient in preparation, compact and stable in product structure, good in leakproofness, flame-retardant and high-low-temperature resistant, waterproof and anti-aging,