Product name: PVP/VA copolymer
CASNO.:25086-89-9
Packing: 25kg/ barrel
Chemical structure: vinylpyrrolidone and vinyl acetate copolymer
CTFA Name: NVP/VACOPOLYMER
Molecular formula :C6H9NO)nx(C4H6O2)m(n=1.2m)
Chemical structure formula:
PVP/VA copolymers (VA64, VA37, VA73)
Physical properties:
White or milky powder, and colorless or light yellow transparent liquid, the clarity of the product solution depends on the amount of vinylpyrrolidone and vinyl acetate. The aqueous solution of VA37 is turbidity, while the aqueous solution of other products is clear at room temperature. The solution is slightly acidic but non-electrolytic.
Specifications:
Cosmetic grade
| project | NVP/VA | K value | Residual bill% | moisture% | solid content% | PHvalue(10%aqueous solution) | heavy metal% (By lead)ppm | ash content% |
| VP/VA28W(liquid) | 20/80 | 16-22 | ≤0.02 | – | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA37E(liquid) | 30/70 | 24-32 | ≤0.02 | – | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA55E(liquid) | 50/50 | 24-32 | ≤0.02 | ≤0.5 | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA55W(liquid) | 50/50 | 22-30 | ≤0.02 | – | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA84E(liquid) | 60/40 | 30-36 | ≤0.02 | ≤0.5 | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA84S | 60/40 | 30-36 | ≤0.02 | ≤0.5 | ≥95 | 5-7 | ≤20 | ≤0.1 |
| VP/VA84W(liquid) | 60/40 | 30-36 | ≤0.02 | – | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA73E(liquid) | 70/30 | 30-38 | ≤0.02 | ≤0.5 | 50±2 | 6-8 | ≤20 | ≤0.1 |
| VP/VA73W(liquid) | 70/30 | 24-32 | ≤0.02 | – | 50±2 | 6-8 | ≤20 | ≤0.1 |
Note: E stands for alcohol/ethanol solution;
Pharmaceutical grade
| project | K value | saponification value | residual monomer(VP+VAc) % | loss on drying % | Sulfate ash% |
| VA64(powder) | 26-34 | 230-274 | ≤0.01 | ≤5.0 | ≤0.1 |
| heavy metal ppm | nitrogen content % | aldehyde content ppm | peroxide ppm | hydrazine ppm | Residual mono-A (A-pyrrolidone)% |
| ≤20ppm | 7.0-8.0 | ≤500 | ≤400 | ≤1 | ≤0.5 |
Applications:
Cosmetics industry: PVP/VA series plays the role of stiffening agent and film forming agent, high vinyl acetate ratio specifications, low moisture absorption, ideal for hair, spray and fixing solution. When mixed with PVP K30, it can enhance the fixed hair effect.
Other industrial uses:
Can be used as a rewet binder, adhesive for paper
It can be used as a thickening agent and protective colloid for various inks
It can be used as a dispersive stabilizer of paint binder and printing and dyeing auxiliaries
The pharmaceutical industry is used to produce coating for tablets
Main applications and functions:
〖 nanodispersion 〗 Excellent dispersion performance In the field of new energy, after mixing with carbon nanotubes and solvents, the carbon nanotube slurry is improved by high-speed dispersion sanding equipment and process
The stability of; Nanometer paste processed with rare metals such as silver by special process is widely used in new energy and new materials such as photovoltaic.
[Daily care] The copolymer of vinylpyrrolidone and vinyl acetate can be used as a film and styling agent for hair care, especially in aerosol and spray production
In liquid products, mousses and gels, where VP/VA copolymer aqueous solution is carbomer soluble and suitable for ethanol-free formulations.
Packing and storage
20KG/ paper bucket, 50KG/ plastic bucket, sealed, stored in dry room temperature.
