Product: Polyvinylpyrrolidone (PVP)
Rchem Polyvinylpyrrolidone (PVP) is a high-purity, water-soluble synthetic polymer, presented as a white to light-yellow, hygroscopic powder or as an aqueous solution. Renowned for its exceptional film-forming, adhesive, and suspending properties, PVP is a versatile ingredient across the cosmetic, pharmaceutical, and industrial sectors. Its ability to form clear, tough films and complex with various molecules makes it indispensable in applications ranging from hairsprays and tablet binders to beverage clarification and disinfectant solutions.
Category: powder
Description
Key Features & Benefits:
● Excellent natural thickening agent with high viscosity at low concentrations
● Effective stabilizer for emulsions and suspensions in various formulations
● Clean-label ingredient suitable for organic and natural product formulations
● Improves texture and shelf life in food products
● Enhances viscosity and stability in cosmetic formulations
● Cost-effective alternative to synthetic thickeners and stabilizers
Technical Specifications Table:
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PALM DERIVATIVES STATUS
VEGAN SUITABLE
Chemical Formulae
Frequently Asked Questions:
How does PVP work as a hair fixative?
In hair care, PVP is dissolved in a solvent (like water or alcohol) and sprayed onto the hair. As the solvent evaporates, PVP forms a thin, transparent, and flexible film on the hair shafts. This film "glues" the hair fibers together in the desired style, providing hold and resistance to humidity.
PVP/VA Copolymer is a derivative where PVP is copolymerized with Vinyl Acetate (VA). This modification makes the polymer more flexible, less sensitive to humidity, and gives it a softer feel. It is often preferred in hair sprays for a more flexible hold and reduced flaking.
What is "PVP/VA Copolymer" and how is it different?
Yes, PVP has a long history of safe use and is approved by regulatory bodies worldwide for use in cosmetics, pharmaceuticals, and food contact applications. It is considered non-toxic and non-irritating at standard usage levels.
Is PVP safe for use in cosmetics and pharmaceuticals?
PVP can form a complex with iodine, known as PVP-Iodine (povidone-iodine). This complex acts as a reservoir, slowly releasing iodine (a powerful antiseptic) over time. This provides sustained antimicrobial activity and is less irritating than tincture of iodine.
Why is PVP used in some disinfectants?
The K-value is a measure related to the molecular weight (and thus, the chain length) of the PVP polymer. A low K-value (e.g., K-12, K-17) indicates a shorter chain, resulting in lower viscosity and used as a binder or protective colloid. A high K-value (e.g., K-90) indicates a long chain, resulting in high viscosity and strong film-forming properties, making it ideal for hair sprays.
