| abstract |
The invention relates to a breathable wallpaper base film, which comprises modified silica sol, a film forming agent and a copper ammonia complex ion solution; wherein the modified silica sol is a silica sol grafted with an alkyl siloxane. The invention takes water-soluble resin as a film forming agent, adds modified silica sol, and is matched with other auxiliary agents to prepare the breathable wall base film. Because the silica sol has small granularity and higher permeability, the modified silica sol has good bonding force with wall materials, and has waterproof performance, certain air permeability and permeability after construction. |