Organic silicon modified polycarboxylate dispersing agent and preparation method and application thereof

• Main Authors: YANG XIAODONG, ZHANG BO, ZHANG LEI, ZHANG MINGQIAN, REN TIANRUI, ZHAO LEI, ZHANG SHUPENG
• Format: Patent
• Language: Chinese; English
• Published: 22.01.2021
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; ARTIFICIAL STONE; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DYES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; LAKES; LIME, MAGNESIA; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; REFRACTORIES; SLAG; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; TREATMENT OF NATURAL STONE

The invention provides an organic silicon modified polycarboxylate dispersing agent and a preparation method and application thereof, and belongs to the technical field of surfactants. The organic silicon modified polycarboxylate dispersing agent is low in production cost and environment-friendly, has high dispersing and wetting capacity and low-foam dispersing capacity, can remarkably reduce surface tension, and is good in dispersing stability. Specifically, hydroxycellulose is used as a raw material, is wide in source, low in price and biodegradable and is a sustainable development resource,micromolecular unsaturated carboxylic acid is used for grafting hydroxycellulose, meanwhile, unsaturated polyether compounds are used for providing hydrophilic side chains, and a silane coupling agent is used for modification so as to reduce the surface tension of hydroxycellulose; the polycarboxylate dispersing agent with excellent wetting dispersity is finally obtained, water is used as a solvent, and the polycarboxyla