PVP: Polyvinylpyrrolidone
Product |
PVP: Polyvinylpyrrolidone |
Structure |
 |
CAS No. |
9003-39-8 |
Applications |
Adhesives, Detergents, Fiber treatments, Photoresists, Cosmetics, Dye and pigment dispersants |
PVP-Polyvinylpyrrolidone is a nonionic water-soluble polymer and can be applied in a variety of fields-of-use owing to following advantageous characteristics.
- Good solubility in water as well as various organic solvents
- Good affinity to various polymers and resins
- High hygroscopicity
- Good film formation property
- Good adhesiveness to various substrates
- Good chelate / complex formation property
Typical properties of Polyvinylpyrrolidone
*Powder
Product |
Polyvinylpyrrolidone K-30 |
Polyvinylpyrrolidone K-85 |
Polyvinylpyrrolidone K-90 |
Appearance |
White powder |
White powder |
White powder |
K-value *1 |
27.0~33.0 |
83.0~87.0 |
88.0~96.0 |
Solid content, % |
≥95.0 |
≥95.0 |
≥95.0 |
Water content, % |
<5.0 |
<5.0 |
<5.0 |
Residual monomer content, ppm |
<100 |
<100 |
<100 |
pH *2 |
3.0~7.0 |
5.0~9.0 |
5.0~9.0 |
*Aqueous solution
Product |
Polyvinylpyrrolidone K-30W |
Polyvinylpyrrolidone K-85W |
Polyvinylpyrrolidone K-90W |
Appearance |
Clear viscous liquid |
Clear viscous liquid |
Clear viscous liquid |
K-value *1 |
27.0~33.0 |
86.0~90.0 |
90.0~103.0 |
Solid content, % |
29.0~31.0 49.0~51.0 |
19.0~21.0 |
19.0~21.0 |
Residual monomer content, ppm |
<100 |
<100 |
<100 |
pH *2 |
5.0~9.0 |
5.0~9.0 |
5.0~9.0 |
- * These are not official specification.
- *1 Fikentscher's value of viscosity characteristics K-value represents a viscosity index relating to molecular weight and is calculated by the following Fikentscher's formula with relative viscosity which is measured by capillary viscometer at 25 C
K= (1.5 log ηrel -1)/ (0.15+0.003c)+ (300c log ηrel + (c+1.5clog ηrel)2)1/2/ (0.15c+0.003c2)
ηrel : Relative viscosity of aqueous polyvinylpyrrolidone solution to water
c : Content (w/w%)of polyvinylpyrrolidone in aqueous polyvinylpyrrolidone solution
- *2 Measured with 10% aqueous solution
Example of Applications
Adhesives |
- water-activated (envelopes, stamps)
- pressure-sensitive
- glue sticks
- bookbinding
|
Protective Colliods |
- particle-size regulators
- suspending agents
- viscosity modifiers
|
Resin Compounds |
- dye-receptivity/printability improvers
- compatibilizers for heterogeneous resins
- filler dispersants
- wood plastic composites
- anti-static agents
|
Films |
- printability improvers
- adhesiveness improvers
- anchor coatings
- anti-fogging agents
- image receiving coatings
- water soluble films
|
Textiles / Fibers |
- dye stripping
- dye-receptivity improvers
- pigment dispersants
- anti-fouling agents
- hydrophilicity improvers
- anti-static agents
|
Paper / Printing |
- strength improvers
- sizing agents
- pigment dispersants
- ink removal in recycling paper
- ink jet paper
|
Coatings / Inks |
- pigment /dye dispersants
- viscosity modifiers
- film levellers
- anti-fogging coatings
- anti-fouling coatings
- ball-point inks
|
Laundry Detergants |
- anti-redeposition agents
- dye-transfer inhibitors
- binders for tablet formulations
|
Metal Working |
|
Oil / Gas Fields |
- drilling fluid additives
- fluid loss cotrol
- gas hydrate preventors
|
Electrical |
- black matrix for TV tube
- binders for battery electrodes
- nonwoven battery separator treatment
|
Ceramics |
|
Photography |
- photo emulsion additives
- colorant receptors
|
Cosmetic |
- hair gel
- hair spray
- lip stic
|
* These are not official specification.


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