NVP
Your Professional NVP Supplier
Zhejiang Retron Biotech Co., Ltd. (referred to as Retron Biotech) is located in the town of Tianzi Lake, Anji County, which is the first county in China to receive the "United Nations Habitat Environment Award" and known as the "Hangzhou Back Garden". Retron Biotech was established in April 2021, covering an area of over 5.3 acres with a total investment of 28 million USD.Since 2018, Huzhou Retron Food Additive Co., Ltd., a wholly-owned subsidiary of Retron Biotech, has been dedicated to the research, development, and production of cross-linked polyvinylpyrrolidone (PVPP).
Why Choose Us
Our Certificate
We ISO9001,ISO22000,ISO45001, HALAL Certificate,food production license, DMF,China pharmaceutical excipients record registration.
Business Philosophy
The company adheres to the enterprise tenet of "focusing on customers' needs", adheres to the business philosophy of "truth-seeking, pragmatism, professional technology, and quality first", and sincerely carries out ll-round cooperation with domestic and foreign customers.
Rich Experience
Dedicated to strict quality control and attentive customer service, our experienced staff is always available to discuss your requirements and ensure complete customer satisfaction.
Production Market
We China, East Asia, Southeast Asia, Eastem Europe, the Middle East, Western Europe, the United States.
Product Description
|
ITEM |
STANDARD |
|
Appearance |
White or slightly yellow hygroscopic powder or flakes |
|
Solubility |
Soluble in water, 96% ethanol |
|
Identify A, B |
Meet the requirments |
|
Solution Appearance |
Clear to cloudy |
|
PH |
3.0-7.0 |
|
Aldehyde ppm |
≤500 |
|
Peroxide ppm |
≤ 400 |
|
NVP ppm |
≤ 10.0 |
|
Saponification value mg/g |
230-270 |
|
Residue on ignition% |
≤ 0.1 |
|
Hydrazine ppm |
≤ 1.0 |
|
2-P% |
≤ 0.5 |
|
Moisture% |
≤ 5.0 |
|
Heavy metal ppm |
≤ 20 |
|
Nitrogen content% |
7.0-8.0 |
|
K value |
26.0- 36.0 |
Structure: NVP is a colorless liquid monomer with a 5-membered lactam ring linked to a vinyl group.
Polymerization: It readily polymerizes through radical polymerization to form PVP.
Reactivity: NVP is considered a less activated monomer, which allows for copolymerization with other vinyl monomers.
Preparation method of NVP
Process 1
Configure NVP into a solution with a mass fraction of 50%, use a small amount of hydrogen peroxide as a catalyst, and initiate polymerization at 50°C under the action of azobisisobutyronitrile, so that almost all NVP is converted into PVP. Then add ammonia water to the polymer to decompose the remaining azobisisobutyronitrile. The monomer polymerization conversion rate is nearly 100%, and the solid content is 50%.
Process 2
Add 0.4g dispersant P (NVP-co-VAc) and 80g dispersing medium ethyl acetate into a 250 ml four-neck flask, stir and dissolve in a 70℃ constant temperature water bath, then add 20g monomer NVP and 0.15g initiator AIBN, react for 6h under nitrogen atmosphere, cool and filter, put the insoluble matter in a vacuum drying box, and vacuum dry for 24h to obtain white poly vinyl pyrrolidone solid powder.
Product Paramenters
|
Melting point |
13-14 °C |
|
Boiling point |
92-95 °C11 mm Hg(lit.) |
|
Density |
1.04 g/mL at 25 °C(lit.) |
|
Vapor density |
3.8 (vs air) |
|
Vapor pressure |
0.1 mm Hg ( 24 °C) |
|
Refractive index |
n20/D 1.512(lit.) |
|
Fp |
201 °F |
|
Storage temp. |
Store below +30°C. |
|
Solubility |
52.1g/l soluble |
|
Form |
Liquid |
|
Pka |
-0.34±0.20(Predicted) |
|
Color |
Clear colorless to yellow |
|
PH |
9-10 (100g/l, H2O, 20ºC) |
Application of NVP
Pharmaceuticals: NVP is widely used in the pharmaceutical industry as a pharmaceutical excipient. Its excellent solubility and biocompatibility make it an ideal choice for enhancing drug formulations, especially for poorly soluble drugs. It acts as a co-solvent and helps improve the bioavailability of certain medications.
Personal Care Products: NVP is found in various personal care items such as hair sprays, gels, and styling products. Its water solubility makes it a preferred ingredient for these products, as it provides good holding power and imparts a natural shine to the hair without leaving any residue.
Textiles: In the textile industry, NVP is used as a dye carrier and dispersing agent. It enhances color fastness and improves dye penetration, thereby enhancing the quality of dyed fabrics.
Adhesives and Coatings: NVP is used as a binder or viscosity enhancer in adhesives and coatings. Its high boiling point and film-forming properties make it valuable for these applications, providing strong and durable bonds in adhesives.
Polymerization: NVP serves as a monomer for various polymerization reactions, leading to the production of polymers like polyvinylpyrrolidone (PVP). These polymers have numerous applications, including as drug delivery systems, binder materials, and in the production of oral dosage forms.
Chemical Processes: NVP is utilized in various chemical processes, including as a reactive diluent, which helps control the viscosity and curing properties of resins in composites and coatings.
Agriculture: In agriculture, NVP can be used in pesticide formulations to enhance the solubility and effectiveness of active ingredients.
Electronics: NVP can find application in the electronics industry, such as in the production of photoresists used in semiconductor manufacturing.
Oil and Gas: It can be used as an additive in drilling fluids to enhance the performance of drilling operations.
FAQ
As one of the most professional nvp manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy high-grade nvpmade in China here from our factory.
Vinylpyrrolidone-Copolymer, , N Vinylpyrrolidone Polymer