demand for pva film grows rapidly and competition among companies eases
pva film has many special properties that ordinary plastic materials do not have, such as: complete biodegradability, excellent water-soluble properties, superior light transmittance and polarization, excellent far-infrared blocking properties, superior gas barrier properties, non-static properties, excellent heat resistance and demoulding properties, good organic solvent barrier properties, etc., make pva film widely used in many different…
