Crack-resistant waterborne coating

• Main Author: FAN SHIXIN
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses a crack-resistant waterborne coating which comprises the following raw materials in parts by weight: 60-80 parts of a modified polyurethane emulsion, 20-30 parts of an acrylic emulsion, 15-25 parts of a pigment, 10-20 parts of a filler, 3-5 parts of 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate), 4-5 parts of sodium dodecyl sulfate, 0.2-0.4 part of a flatting agent, 0.1-0.2 part of an emulsifying agent OP-10, 0.1-0.2 part of a de-foaming agent, 0.2-0.4 part of a wetting agent 265, 0.2-0.4 part of sodium carboxymethyl cellulose, 0.6-0.8 part of gamma-(2,3-epoxypropoxy) mercaptopropyltrimethoxysilane, 0.2-0.4 part of a mildew preventive and 10-18 parts of water. The crack-resistant waterborne coating disclosed by the invention has good toughness, impact performance, crack resistance and bonding performance. 本发明公开了种抗裂水性涂料，其原料按重量份包括：改性聚氨酯乳液60-80份，丙烯酸乳液20-30份，颜料15-25份，填料10-20份，十二碳醇酯3-5份，十二烷基磺酸钠4-5份，流平剂0.2-0.4份，乳化剂OP-10 0.1-0.2份，消泡剂0.1-0.2份，润湿剂wet265 0.2-0.4份，羧甲基纤维素钠0.2-0.4份，γ-(2,3-