Chemical name: polyvinyl pyrrolidone, referred to as PVP, its monomer is N-vinyl pyrrolidone.
Appearance: usually white to yellowish white powder, hydrophilic, easy to flow, with a slight odor.
Physical and chemical properties:
Solubility:
Very soluble in water, soluble in halogenated hydrocarbon solvents, alcohols, amines, nitroalkanes and low molecular weight fatty acids, insoluble in a few solvents such as acetone, ether, turpentine, aliphatic hydrocarbons and alicyclic hydrocarbons.
Business outsourcingOther properties:
It has a certain hygroscopicity, its solution has a high viscosity, can form a tough film, and has good film-forming, adhesion, complexing properties, etc.
Stability:
Stable at room temperature and pressure, compatible with most inorganic acid salts and a variety of resins.
Application fields:
Medical field: It is widely used as an excipient for pharmaceutical preparations, such as a binder for preparations, a coprecipitant, a cosolvent or crystal formation inhibitor in injections, a coating or film-forming agent, etc. It can also be used for artificial vitreous and cornea, surgical bandages, etc.
Cosmetic field: It has the function of protecting colloids in emulsions, and can be used in fatty and non-fatty pastes, as a setting liquid, a setting agent for hair spray and mousse, a sunscreen for hair care products, and a foam stabilizer for shampoo, etc.
Food field: It can be used as a stabilizer, thickener and taste improver in the food processing process to improve the taste, appearance and preservation of food. For example, it can be added to foods such as yogurt, beverages and ice cream to make the taste more delicate and smooth.
Other fields: In different dispersion systems, it can also be used as a dispersant, emulsifier, coagulant, cosolvent and detergent, etc. It can also be used in industrial water treatment membranes, lithium battery and photovoltaic cell manufacturing, special coatings and other fields.
FAQ
Q: Compared with other suppliers, what are the quality advantages of your Polyvinylpyrrolidone K19?
A: We have a strict quality control system. Starting from the selection of raw materials, we only use high-quality N-vinylpyrrolidone monomers. During the production process, advanced equipment and precise process control are used to make the molecular weight distribution of the product narrower, which means that the product performance is more uniform and stable. At the same time, we strictly test and control the impurities, residual monomers and other indicators in the product, and reduce their content to an extremely low level to ensure the high purity of the product. According to the test of a third-party authoritative organization, the performance indicators of our products are better than the industry average, and we can provide customers with more reliable and higher-quality products.
Q: What specifications of Polyvinylpyrrolidone K19 products can you provide?
A: At present, we mainly provide Polyvinylpyrrolidone K19 products that meet industry standards, and its K value corresponds to a specific average molecular weight range to meet the diverse needs of different customers. In terms of packaging specifications, there are 25kg bags, which are convenient for small and medium-sized enterprises to purchase and use; there are also 1000kg large packaging ton bags, which are suitable for large-scale production enterprises and are easy to store and transport. In addition, if customers have special customized specifications, we can also adjust the production process according to the actual situation to tailor products of the required specifications for customers.
Q: How is the safety of the product guaranteed?
A: We attach great importance to product safety. The product itself has good biocompatibility and has been approved by authoritative organizations such as the US Food and Drug Administration (FDA) for use in related fields. During the production process, we strictly follow the international quality management system standards to prevent the introduction of harmful impurities and pollutants. In addition, before each batch of products leaves the factory, it must undergo comprehensive safety testing, including toxicity testing, microbial limit testing, etc., to ensure that the product is harmless to the human body and the environment, so that customers can use it with confidence.
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