Povidone K-17
Povidone k-17 can not only improve the hydrophilicity of the membrane, but also control the pore size and distribution of the membrane by selecting PVP with different molecular weights...
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Product Details ofPovidone K-17
Ulanqab Kema New Material Co., Ltd. is one of the most experienced manufacturers and suppliers of povidone k-17 in China. Please rest assured to wholesale high quality povidone k-17 made in China here from our factory. If you have any enquiry about free sample, please feel free to email us.
Description
The molecular weight is about 10100, which is a common substance in the polyvinylpyrrolidone series Povidone k-17 can not only improve the hydrophilicity of the membrane, but also control the pore size and distribution of the membrane by selecting PVP with different molecular weights and controlling the amount of addition. In addition, PVP has applications in the fields of new materials such as drag reduction materials, optical fibers, laser discs, photo-curable resins, and photosensitive materials.
Product specifications
| Number of molecules | 10100 |
| Resin content(wt%) | ＞95 |
| Viscosity(mass-25℃,5%aq) | 1.1-1.6 |
| Moisture(wt%) | ＜5 |
| Appearance | White powder |
| Ignition residue(wt%) | ＜0.1 |
| Aldehyde(ppm) | ＜500 |
| PH(5% aq) | 3.0-7.0 |
| Defective products(wt%) | ＜0.1 |
| K-value | 16.0-18.2 |
| Peroxide(ppm) | ＜400 |
| Heavy metals(Pb,ppm) | ＜10 |
| Glass transition temperature(℃） | 160 |
| Nitrogen(wt%) | 11.5-12.8 |
| CAS number | 9003-39-8 |
| Solubility Water | ○ |
| Ethanol | ○ |
| Ethyl lactate | △ |
| Dichloromethane | △ |
| Butylamine | △ |
| Acetone | × |
| Hexane | × |
| PS: ○:Dissolved △:Partially dissolved ×:Insoluble | |
Application of povidone k17
Suspending agent, dispersing agent, emulsifier:
Adding Povidone K-17 to water-soluble suspending agents, dispersing agents, and emulsifiers can increase stability. PVP can form a thin layer on the surface of the colloid particles, which can avoid its condensation.
Plastic production: In the production of solid plastic polymers, PVPK is added as a protective colloid and polymerization stabilizer.
Papermaking ：
Because PVP K is water-soluble, PVP K is used as a coating for paper, if the paper is wetted again in the following steps. In addition, PVP K prevents the paper from curling up and makes the surface smooth.
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