Novel environmental-protection adhesive for buildings

• Main Author: XU YONGZE
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2012
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; 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; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses a novel environmental-protection adhesive for buildings, which is mainly characterized in that vinyl acetate is used as a polymerization monomer; crylic acid, butyl acrylate and styrene are used as functional monomers; polyvinyl alcohol (PVA) and vinyl acetateethylene emulsion (VAE) are used as protective colloids; nano silicon micro powder is used as an anti-caking agent; and ethyl benzoate and 0# colloid crystal are used as modifiers. The main monomer and the functional monomers are prepared into emulsion through multi-element copolymerization; the protective colloids, the anti-caking agent and the modifiers are added to prepare powder through spray drying. The raw material formula comprises the following components: 8-10 percent of polyvinyl alcohol, 0.3-0.5 percent of polyoxyethylene octylphenol ether-10 (OP-10) emulsifying agent, 0.1-0.15 percent of ammonium persulfate, 25-30 percent of vinyl acetate, 0.05-0.1 percent of sodium hydroxide, 20-25 percent of vinyl versatate, 2-2.5 pe