About PVA
PVA is one of the most famous water-soluble synthetic polymers.
PVA’s property:
Water-solubility
⇒ Non organic solvent system
Lower viscosity of aqueous solution（than other water-soluble polymer)
⇒ Improvement of the productivity by using high concentration aqueous solution
High tensile strength and flexibility
⇒ Preventing the crack under high humidity
High gas barrier property(Oxygen, moisture vapor,etc)
⇒ Preventing oxidization of API, moisture protection and odor masking
Good binding and adhesive ability
⇒ Improvement of hardness and abrasion of tablets.
It is possible to reduce the binder content.
Good emulsifying and dispersing ability
⇒ It is possible to disperse the APIs which are difficult to be dissolved in the water.