Polyvinylpyrrolidone K25

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Product description:

Polyvinylpyrrolidone (PVP) is a non-ionic polymer. Currently, PVP is commercially available in several viscosity grades, from low molecular weight to high molecular weight. These classifications, combined with its solubility in aqueous/organic solvent systems, non-toxic characteristics, and stability to acid, salt, and heat, give PVP great application flexibility. Industrial applications of PVP include, for example, use as a binder to improve strength and thickness; increase strength in paper production; use as a resin coating; improve dye coloring in synthetic fibers; and it is also commonly used in inks, imaging, lithography, and detergents. And soap, textiles, pottery, electric power, metallurgy, and as a polymer additive. Due to its excellent adhesion, film-forming, dispersion and thickening properties, PVP is also widely used in the pharmaceutical industry.

PVP is graded according to its average molecular weight, and is often marked by K value. Different K values represent different average molecular weight ranges of PVP. The K value is actually a characteristic value related to the relative viscosity of the PVP aqueous solution, and the viscosity is a physical value related to the molecular weight of the polymer. Therefore, the K value can be used to characterize the average molecular weight of PVP. Generally speaking, the greater the K value, the greater the viscosity.

This product is Polyvinylpyrrolidone K25 (Polyvinylpyrrolidone K25), referred to as PVP-25, with an average molecular weight of 24,000.

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