The final properties of the PVA material can be affected by a number of factors during the manufacturing process. These factors include the molecular weight of the polymer, the degree of hydrolysis of the raw PVOH as well as the concentration of the reactants. The degree of reaction, or acetalization will dramatically affect the resulting properties of the material. This is controlled by reaction times, temperature, reactant type and concentration.
Typical Physical Properties
|30% Compressive Stress (g/cm²)||170||95||73||68||90|
|Apparent Density (g/cm³)||0.117||0.100||0.097||0.098||0.101|
|% Water Absorption||849||1000||1040||1040||1012|
|Median Pore Size (μm)||153||125||89||81||80|