Hangzhou Rainbow Import & Export Co., Ltd. is one of the leading manufacturers and suppliers of polyvinyl polypyrrolidone in China. With abundant experience, we warmly welcome you to buy customized polyvinyl polypyrrolidone from our factory. If you have any enquiry about free sample, please feel free to email us.

Polyvinyl polypyrrolidone (PVPP) is a white or nearly white powder or granule, insoluble in water and most organic solvents. As a cross-linked polymer, it has excellent adsorption properties and can selectively adsorb polyphenols, anthocyanins and other substances. It is often used in beverages such as beer and juice to remove components that easily cause turbidity and precipitation, and improve the stability and clarity of beverages. In the pharmaceutical field, it can be used as a disintegrant for tablets to help drugs disintegrate quickly in the body, and can also act as a filler in capsules to improve drug processing performance.

Chemical properties and structure

Polyvinyl polypyrrolidone
Its molecular formula is (C6H9NO)n, and its density is about 1.144 g/cm³. It is soluble in polar solvents such as water and ethanol, but insoluble in non-polar solvents such as acetone and ether. It is a white to light brown powder at room temperature.

Main application areas

PVP is used as an adhesive, flow aid and disinfectant in the pharmaceutical field, and is often used as a stabilizer in cosmetics. It is also used in the food industry and wound care products due to its film-forming properties and biocompatibility.

Advantages of Polyvinyl polypyrrolidone

Strong adsorption:

It has excellent adsorption capacity for pigments, polyphenols, etc., and is often used for purification, such as removing undesirable components in juice clarification.

High stability:

It has stable chemical properties, is resistant to acids, alkalis, and heat, and can maintain its performance under different environments, which is conducive to long-term storage and application in various scenarios.

Good compatibility:

It has good compatibility with most substances and can be stably present in formulations such as medicines and cosmetics without interfering with other ingredients.

High safety:

It has low toxicity and low irritation, meets relevant safety standards, and is widely used in oral medicines, skin care products, and other products that come into contact with the human body.

FAQ

Q: What is the particle size distribution of the product?

A: We provide products with a variety of particle size specifications, with uniform particle size distribution, and can be customized according to the specific needs of customers to meet the use requirements of different customers in different processes.

Q: What is the solubility of the product?

A: This product is insoluble in water and many organic solvents. This insolubility gives it a unique advantage in many applications that require maintaining solid structure and specific functions. For example, when used as a disintegrant in tablets, it can quickly absorb water and swell in an aqueous environment without dissolving, thereby effectively promoting tablet disintegration.

Q: If there is a problem with the product during use, what kind of after-sales support do you provide?

A: We provide comprehensive after-sales support. If customers encounter problems during use, we will respond to customer feedback within [specific time] and arrange professional technicians to communicate and guide to assist customers in solving problems. If it is determined to be a product quality problem, we will be responsible for returns and exchanges and bear the corresponding losses.

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