| abstract |
The present application discloses a liquid waterproofing membrane and its preparation method and use method. The liquid waterproofing membrane in this application includes the following raw material components in parts by weight: water-based polyurethane dispersion: 375 parts, non-ionic emulsified asphalt: 350-400 parts, aggregate: 100-120 parts, filler: 100- 120 parts, coupling agent: 1-2 parts, UV absorber: 2-3 parts, other additives: 13-19 parts. The liquid waterproofing membrane provided by the application has high tensile strength and good bonding strength with the cement base under the synergistic effect of each component, which can effectively improve the poor adhesion between the coating and the cement base. The resulting flakes fall off, and reduce the occurrence of the coating bulging due to the evaporation of water vapor under the coating. At the same time, the liquid waterproofing membrane provided by the application can be directly painted on the roof surface, the construction is simple, and no additional installation is required. The protective layer. |