Hard-core and soft-shell type acrylic emulsion, and preparation method and application thereof

• Main Authors: WANG YIBO, CHEN MIANFENG, MO YANGMIAO, YANG BIN, FU ZHAOFU
• Format: Patent
• Language: Chinese; English
• Published: 08.06.2018
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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 hard-core and soft-shell type acrylic emulsion, and a preparation method and an application thereof. The hard-core and soft-shell type acrylic emulsion is prepared from the following raw materials in parts by mass: 50 to 120 parts of a hard monomer, 60 to 150 parts of a soft monomer, 1 to 15 parts of a functional monomer, 1 to 5 parts of an emulsifier, 0.5 to 4 parts of sodium bicarbonate, 0.5 to 4 parts of an initiator, 4 to 7 parts of ammonia water and 100 to 200 parts of water. The hard-core and soft-shell type acrylic emulsion provided by the invention has simplepreparation process, and only needs reasonable adjustment of the addition ratio of the soft monomer to the hard monomer in the process of emulsion polymerization. The hard-core and soft-shell type acrylic emulsion provided by the invention can be used for waterborne damping coatings; the waterborne damping coating prepared from the hard-core and soft-shell type acrylic emulsion has wide damping temperature range; and the