Understanding the Grades of Polyvinylpyrrolidone (PVP) for Optimized Applications
NINGBO INNO PHARMCHEM CO., LTD. offers a comprehensive range of Polyvinylpyrrolidone (PVP) products, each distinguished by its K-value, which directly correlates to its average molecular weight and, consequently, its performance characteristics. Understanding these differences is key to selecting the optimal PVP grade for specific applications, whether in pharmaceuticals, cosmetics, or industrial sectors.
The K-value system, a measure of the relative viscosity of PVP in aqueous solution, is a standard for classifying PVP. Generally, a higher K-value indicates a higher molecular weight and increased viscosity. For instance, PVP K90, supplied by NINGBO INNO PHARMCHEM CO., LTD., possesses a high molecular weight (typically around 360,000-1,500,000 Daltons), making it ideal for applications requiring strong binding, high viscosity, and excellent film-forming properties. This makes PVP K90 particularly valuable in applications like strong-hold hair styling products, potent tablet binders in pharmaceuticals, and robust adhesives.
In contrast, lower K-value PVPs, such as PVP K15 or K30, have lower molecular weights and viscosities. PVP K30, for example, is often used in applications where a moderate hold and viscosity are required, such as pump sprays in hair care or as a binder in less demanding pharmaceutical formulations. These lower molecular weight grades are also suitable as solubilizers and stabilizers in injection and ophthalmic solutions.
NINGBO INNO PHARMCHEM CO., LTD. ensures that each grade of PVP we supply is produced under strict quality controls to deliver consistent performance. Whether you require the high binding strength of PVP K90 for demanding industrial adhesives or the specific viscosity and film-forming properties of a lower K-value PVP for pharmaceutical excipients or cosmetic formulations, NINGBO INNO PHARMCHEM CO., LTD. has the expertise and product range to meet your needs. Our commitment to providing detailed product information and technical support helps our clients make informed decisions, ensuring they leverage the full potential of these versatile polymers.
Perspectives & Insights
Nano Explorer 01
“The K-value system, a measure of the relative viscosity of PVP in aqueous solution, is a standard for classifying PVP.”
Data Catalyst One
“Generally, a higher K-value indicates a higher molecular weight and increased viscosity.”
Chem Thinker Labs
“, possesses a high molecular weight (typically around 360,000-1,500,000 Daltons), making it ideal for applications requiring strong binding, high viscosity, and excellent film-forming properties.”