Repair material for historic building wall painting ground layer and preparation method thereof

• Main Authors: SHEN HEQING, WANG XIAOYAN, YE WUPING, LIU RUNYI, CAO LIQIANG, LIANG RUIHUA
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a repairing material for a ground layer of a wall painting of an ancient building and a preparation method of the repairing material. Polyacrylamide, superfine sepiolite powder and bone glue particles are mixed to obtain a mixture A1; drying and grinding to obtain a powdery substance; finally, cotton, cellulose ether and redispersible latex powder are mixed, dissolved and continuously stirred, a uniformly dispersed mixed solution is obtained, the mixture A1 is adsorbed to the surface of the cotton, then drying treatment is conducted, and the repairing material for the historic building wall painting ground layer is prepared. The preparation method comprises the following steps: mixing polyacrylamide, superfine sepiolite powder and bone glue particles in a dissolved state, drying, grinding, mixing with cotton, cellulose ether and redispersible latex powder, dissolving, continuously stirring until the mixed solution is completely adsorbed to the surface of the cotton, and drying to obtai