Selvol is a brand of polyvinyl alcohol (PVOH) produced by Sekisui Specialty Chemicals. Known for its water solubility, excellent film-forming ability, and adhesive properties, Selvol plays a crucial role across a wide range of industries including packaging, construction, paper manufacturing, textiles, and pharmaceuticals.
Properties and Chemistry
Selvol products are derived from the polymerization of vinyl acetate followed by hydrolysis to produce polyvinyl alcohol. By varying the degree of polymerization and hydrolysis, manufacturers can tailor Selvol grades to meet specific needs. For example, a higher degree of hydrolysis results in a polymer with better water resistance but lower solubility, while a lower degree of hydrolysis results in faster dissolution and higher tack.
Key features of Selvol include:
Industrial Applications
Selvol is widely used in biodegradable and water-soluble packaging films, especially for single-use detergent pods and agrochemical capsules. Its environmentally friendly profile makes it ideal for replacing traditional plastics in certain applications.
In the construction sector, Selvol serves as a binder and additive in cement and mortar formulations. It enhances the flexibility, workability, and adhesion of these materials.
Selvol is used as a surface sizing and coating agent in the paper industry, improving printability and strength. In textiles, it acts as a warp sizing agent that provides lubrication and reduces yarn breakage during weaving.
Thanks to its strong bonding capabilities, Selvol is a preferred ingredient in emulsion adhesives for woodworking, paper, and packaging.
Selvol is used in drug delivery systems due to its film-forming ability and biocompatibility. It’s also found in cosmetic formulations like face masks and shampoos.
Sustainability and Future Outlook
With increasing demand for eco-friendly materials, Selvol is positioned as a sustainable choice. It is non-toxic, biodegradable, and safe for use in many consumer products. Ongoing research continues to explore its role in bioplastics, medical applications, and green manufacturing.
In summary, Selvol is a highly adaptable polymer that meets diverse industry needs while aligning with growing sustainability goals.