Starting from the water resistance mechanism of JS waterproof coating,the post-cross-linking structure formed by active functional groups(carboxyl groups)of lotion polymer and cross-linking agent has been specifically designed,which could weaken the plasticizing effect of water molecules on polymer molecules and the destructive effect on the interfacial force between polymer molecules and inorganic fillers.Furthermore,a kind of JS waterproof coating with outstanding water-resistance has been developed.After long-term immersion,this coating still maintains good physical mechanics performance,water absorption＜9％,tensile strength＞1.6 MPa,and there is no apparent change after one year of immersion.
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