Polyvinylpyrrolidone (PVP K15) with CAS 9003-39-8 is a low-molecular-weight nonionic polymer with a K value range of 12 to 18. As an important branch of the PVP series, it has unique application value in the fields of industry, medicine and daily chemicals.
Physical and chemical properties
Solubility: Soluble in water, ethanol, chloroform and many other organic solvents, insoluble in ether, aliphatic hydrocarbons and other organic solvents.
Hygroscopicity: It has a strong hygroscopicity and can absorb moisture from the air.
Stability: PVP K15 remains chemically stable under normal temperature and pressure and is not prone to decomposition. However, under conditions of high temperature, strong acids, strong alkalis or strong oxidants, degradation or cross-linking reactions may occur.
Viscosity: PVP K15 aqueous solution has a relatively low viscosity and good fluidity, with a K value ranging from 12.0 to 18.0.
Function and Application
In the field of medicine: As a binder in tablet production, it can closely combine drug powder, making the tablets well-shaped and regular, which is convenient for taking and storing. In injectables, its solubilizing property is utilized to enhance the solubility of poorly soluble drugs and ensure their efficacy. It can also be used to prepare sustained-release preparations and serve as a sustained-release material to control the release rate of drugs.
In the cosmetics field: Polyvinylpyrrolidone K15 acts as a “stabilizer” in emulsion products to prevent oil-water separation and maintain the fine texture of the emulsion. In shampoo, it can increase the stability of foam, making the cleaning process more comfortable and efficient. It can also be used in products such as hair spray and mousse to provide a styling effect.
Food industry: Polyvinylpyrrolidone PVP K15 is often used for clarifying fruit juice, complexing with polyphenols, removing turbidity, making the fruit juice clear and bright, and extending the shelf life. It can also be used as a coating for fruit preservation, reducing water loss and inhibiting the growth of microorganisms.
In the industrial field: Polyvinylpyrrolidone PVP K15 is used as a dispersant in coatings and inks to ensure the uniform dispersion of pigments, prevent caking, and enhance the color and stability of products. In the papermaking industry, as a sizing additive for paper, it enhances the water resistance and strength of the paper. In addition, PVP K15 can also be used in fields such as plastic processing and adhesive production.
In all, PVP K15, with its low viscosity, high compatibility and multi-functionality, has become an irreplaceable functional additive in the fields of fine chemicals and preparations.
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