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A common use of waterborne polyurethane emulsion

by:Sinograce Chemical     2020-07-04
Water has gradually replace solvent-based waterborne polyurethane emulsion, and become an important direction of development of polyurethane industry. Can be widely used in coating, adhesive, waterborne polyurethane coated fabric and finishing agent, paper surface treatment agent, leather finishing agent and fiber surface treatment agent. Polyurethane coating agent: leather coating flexibility, abrasion resistance, can be used as a natural leather and artificial leather coating agent and patching agent. Leather finishing agent is used to replace acrylate resin emulsion, high-grade natural leather processing when it overcome the acrylate resin & other; Hot sticky cold short & throughout; Shortcomings, the finishing of the leather soft plump. It can be used with acrylate resin blend. Polyurethane coating leather ms can be used for boots shoes, clothing, bags, etc. ; Fabric coating agent, coating can be used for a variety of fabric such as canvas, fabric, conveyor belt, coating; Fiber treatment cotton fiber, chemical fiber by polyurethane emulsion dilute solution impregnation, dehydration, heat treatment, can improve the handle, crease and shrink resistance; Nylon, ABS and other plastic coating surface coating; Floor coating can be used for the gymnasium, indoor wood floor coating, coating of concrete floor, abrasion resistance, impact resistance, good glossiness; Other coating materials, such as paper coating, car inner decoration coating; Bottom coating agent. Adhesive and solvent-based polyurethane adhesive, waterborne polyurethane adhesive for bonding performance is good, can be used for a variety of substrate coating glue, a variety of base material of adhesive and binder. A variety of laminated products manufacturing, plywood, food packaging composite plastic film, fabric laminated products, all kinds of thin layer material laminated products; Flocking glue, leather, printing ink, glass fiber and other fibers cluster binders adhesive; Ordinary adhesive materials; The waterborne polyurethane adhesive glue method and solvent are basically the same. 3. Wood processing, wood processing is the biggest application field of water-based adhesives. Plywood, fiberboard, particleboard manufacture commonly used water-based adhesives with urea-formaldehyde resin, melamine & ndash; Formaldehyde resin, phenolic resin, such as woodworking glue or move water-based adhesive and resin emulsion, ethylene/vinyl acetate Vinyl acetate resin emulsion, acrylic resin emulsion, etc. The calculation & other; Melamine formaldehyde resin, composite plate. Waterborne polyurethane is water instead of organic solvent as a new type of polyurethane dispersion medium system, also known as polyurethane or water-based polyurethane water dispersion of polyurethane, river systems. Waterborne polyurethane with water as solvent, no pollution, safe and reliable, excellent mechanical properties, good compatibility, easy modification, etc. According to the size and appearance can be divided into polyurethane aqueous solution, some polyurethane, polyurethane emulsion; Charge properties of hydrophilic groups, water-borne polyurethane can be divided into the anionic water-borne polyurethane, cationic and nonionic waterborne polyurethane aqueous polyurethane. Among them the most important, anionic divided into carboxylic acid and sulfonic acid; By appearance, can be divided into polyurethane emulsion, waterborne polyurethane pu dispersion, polyurethane aqueous solution. One of the most practical application is the polyurethane emulsion and dispersion.
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