Polyvinylpyrrolidone (PVP) is a hygroscopic, amorphous polymer supplied as a white, free-flowing powder or a clear aqueous solution. Available in several molecular weight grades, they are characterized by K-value, and used in a great variety of applications. Polyvinylpyrrolidone can be plasticized with water and most common organic plasticizers.
PVP K30
Technical Specifications
| Test Item | Specification | Test Result |
|---|---|---|
| Appearance | While or yellowish-white powder | Complies |
| PH (1.0g in 20.0ml) | 3.0-7.0 | 3.5 |
| Water | ≤ 5.0% | 3.5% |
| Vinylpyrrolidinone | ≤ 0.2% | 0.01% |
| K-Value | 25.0-34.0 | 28.8 |
