The unique combination of the properties of PVOH with fibers, fillers, PVAc, VAE and other additives has enabled widespread use of various industrial water-based adhesives and coatings. With more than 50 years of experience working with blends of polyvinyl alcohol, Intercol understands and continues to help develop special and unique grades for specific customers. From ceramic binders, construction products, ready-to-use insulation products and adhesives for e.g. paper and wood, Intercol improves the properties of your ready-to-use product.
PVOH can be mixed with polyvinyl acetate emulsions, especially in adhesives and coatings for wood and paper. Various types of PVOH can be used, for example, to increase the water resistance of adhesives. PVOH is also widely used in general purpose adhesives such as textile, leather, wood, and porous ceramic surfaces.
In addition to increasing water resistance, partially hydrolyzed PVOH types can be used to make adhesives moist and water-soluble again.
PVOH can also be used as an emulsifier, a protective colloid in the emulsion process. It is perfectly compatible with vinyl acetate and vinyl acetate copolymer systems (vinyl acetate / ethylene, vinyl acetate / acrylic ester, etc.). Intercol helps develop high-solid emulsions with stability and strong adhesive properties. PVOH are often compatible with non-vinyl acetate systems (styrene / butadiene, styrene / acrylic ester, acrylic ester, etc.), grids, and bead or suspension polymerization of vinyl monomers such as vinyl acetate, styrene, and vinyl chloride. Intercol also develops and produces hydrophobic substances such as wax.
Cross-linking of PVOH
Most polyvinyl acetate emulsions can achieve D3 water resistance without the use of crosslinking technology. If higher water resistance performance is required or the final mixture is not sufficiently water resistant, this can be achieved through the use of additives for crosslinking technology.