| Water Solubility |
The water-solubility of PVOH (GOHSENOL) varies
depending on its grade.
Generally, a grade of a lower viscosity tends to
dissolve more rapidly in water. However, the water-solubility
of PVOH heavily depends on its saponification degree. |
 |
| Solvent Resistance |
| GOHSENOL products are softened by
or dissolved in an acid or alkali. However, they
do not dissolve in most organic solvents, animal
and plant oils, or greases. |
|
| Surface Activity |
| The surface tension of an aqueous
solution of partially saponified PVOH is lower than
that of fully saponified PVOH. |
|
| Bonding Strength |
| An aqueous PVOH (GOHSENOL) solution
exhibits extremely good bonding strength with base
materials that have more porous or hydrophilic surfaces,
such as textiles, paper or wooden materials. |
|
| Membrane Forming
Properties |
| A film made of PVOH (GOHSENOL) boasts
excellent clarity, gas barrier properties, anti-clouding
properties, solvent resistance, antistatic properties,
water vapor permeability, etc. |
|
| Chemical Reactivity |
| GOHSENOL products are stable polymer
compounds, and usually do not develop putrefaction,
decomposition or polymerization when left to stand
alone. In the presence of a catalyst, they will
exhibit various chemical reactions. |
|
| Safety |
| PVOH (GOHSENOL) products are free
from acute toxity, carcinogenicity and mutagenicity.
They are highly safe chemical substances having
little toxicity. |
