Reaction type modified emulsified rubber waterproof sealant and preparation method thereof

The invention aims to provide a reaction type modified emulsified rubber waterproof sealant and a preparation method thereof. The waterproof sealant comprises synthetic rubber latex and a waterproof bridging agent; in the formula system, the bridging agent is added, and through the bridging agent, rubber in the waterproof sealant can carry out chemical crosslinking and physical mortise and tenon synergistic cohesive action with uncured cement or concrete, so that the sealant and cement can be tightly bonded to form an integral body; besides, as related parts have chemical bond action, an irreversible cohesive action can be achieved after curing, and the waterproof sealant can permeate into capillary openings of cement gel and concrete in a wiggling manner during the setting process of cement, and an irreversible tight and secure combination and bonding effect, as close link of flesh and blood, is further achieved.