Hydrophobic stain-resistant polyurethane interior wall coating and preparation method thereof

• Main Authors: HAN ZHEBING, LIM CHANG-KYUNG, LIN PENG, YE ZHENGFU
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses a hydrophobic stain-resistant polyurethane interior wall coating. The interior wall coating is prepared from the following components in percentage by weight: 0.1 to 0.5 percent of a pH regulator, 0.2 to 0.7 percent of hydroxyethyl cellulose, 0.1 to 0.4 percent of a preservative, 0.8 to 2 percent of a wetting dispersant, 0.3 to 0.5 percent of a de-foaming agent, 5 to 18 percent of titanium dioxide, 3 to 9 percent of mica powder, 2 to 7 percent of talcum powder, 12 to 26 percent of calcium carbonate, 5 to 10 percent of straw powder, 5 to 10 percent of a water repellent agent, 0.3 to 1 percent of a drier, 15 to 35 percent of polyurethane emulsion, 1 to 1.2 percent of an anti-freezing agent and the balance of water. The water-based ink is prepared from the following components in percentage by weight: 0.2-0.4% of a thickening agent, 0.5-3% of a fluorescent whitening agent, 0.05-0.3% of pigment The key performance of the hydrophobic stain-resistant polyurethane interior wall coating meets