PVA USE FOR Adhesives&Emulsions
Adhesives is another main use application for Polyvinyl alcohol. Its significant advantages include water solubility, bonding strength, environmental friendliness, and suitability for modification. Polyvinyl alcohol can be used in general-purpose adhesives such as textile, leather, wood and porous ceramic surfaces. The partially hydrolyzed grades are often selected for remoistening adhesives.
PVA USE FOR Adhesives Optimised Solutions
PVA can form hydrogen bonds with porous materials such as paper, wood and fibers, resulting in a strong bonding effect. That’s the key point which PVA use for adhesives. The colloidal solution formed after dissolving PVA exhibits excellent film-forming properties. It forms a dense, flexible film and improves the water resistance and stability of the adhesive.
At the same time, it effectively increases the viscosity of the adhesive system, preventing stratification and precipitation. It can be added as a modifier to other adhesives to improve their flexibility, weather resistance, and bonding performance. For example, it can be used in thermosetting resin adhesives such as urea-formaldehyde resin and phenolic resin to reduce the free formaldehyde content and improve environmental friendliness.
Types of Adhesives in multiple Applications
Water-Soluble Adhesives can be used in paper processing, such as paper bonding, envelope sealing, label pasting, and carton sealing. Wood processing such as splicing plywood, fiberboard, and particleboard, especially suitable for bonding indoor wood products with high environmental requirements.
Modified Starch Adhesives for the core adhesive in corrugated cardboard box production, with low cost and good environmental performance, suitable for large-scale automated production lines.
Polymer Emulsion Adhesives for bonding wood, furniture, and decorative panels; it is a commonly used adhesive in home decoration and woodworking industries.
Acrylic emulsion adhesive for bonding non-woven fabrics, leather, and plastic films, with better weather resistance and flexibility.
Construction Adhesives for Tile pasting, wall putty application, and building sealing; it enhances the adhesion between the material and the substrate, reducing the risk of hollowing and peeling.