Alkyne ether silicon-containing surfactant as well as preparation method and application thereof

• Main Authors: CHEN XUE, SONG XINHONG
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• 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 OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; 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 an alkyne ether silicon-containing surfactant as well as a preparation method and application thereof, and belongs to the technical field of fine chemical engineering. The preparation method comprises the following steps: carrying out polymerization reaction on hexamethylcyclotrisiloxane, tetramethyltetrahydrocyclotetrasiloxane, tetramethyldihydrodisiloxane and an acid catalyst to obtain polysiloxane containing hydrogen at the end and side; alkynyl polyether, polysiloxane containing hydrogen at the end and on the side and a rhodium catalyst are subjected to an alkynyl addition reaction, and the alkynyl ether silicon-containing surfactant suitable for the water-based paint is obtained. The surface tension of the product in a 0.3% aqueous solution can be reduced to 17.5 mN/m, the minimum contact angle can reach 24.76 degrees, the product can serve as a wetting agent and a flatting agent to be used in a coating, the product can be suitable for a water-based or oil-based formula by being g