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PVOH extrusion (polyvinyl alcohol) is the process that transforms this water-soluble polymer into bioplastic compound pellets or finished extruded products, through controlled melting of the material and precise management of temperature and moisture along the barrel.
Bausano extrusion lines meet the specific processing requirements of PVOH, thanks to dedicated technical solutions that ensure process efficiency, control and stability:
- Accurate management of moisture and temperature, essential for controlling gelation and preventing material degradation;
- Configurations with MD Series co-rotating twin-screw extruders, ideal for ensuring melt homogeneity even with water-soluble or technically complex formulations;
- Precise thermal control along the entire barrel, managed through the Sphera digital system, to keep temperature constant at each process stage;
- Dedicated degassing systems, which remove volatile residues and ensure compound purity;
- Special downstream modules, designed to avoid direct contact with water during cooling of the extruded product;
- Production of compound or finished profiles, with consistent chemical-physical characteristics and high performance in biodegradable applications.
All these features result in a stable, repeatable production process suited to processing complex materials.
Thanks to Bausano's experience in building dedicated PVOH plants, the client obtains a high-quality finished product and a sustainable process, backed by complete technical support during testing, configuration and plant start-up.
