What Is PVA? | JCT Machinery

Polyvinyl alcohol (PVA) is a water-soluble synthetic polymer that belongs to the polyvinyl ester family. It is produced by the partial or complete hydrolysis of polyvinyl acetate.

PVA Key Features:

1. Water Solubility

PVA is highly water-soluble, which makes it valuable in various applications, especially in formulations where water solubility is desirable.

2. Film-Forming Properties

PVA can form flexible and transparent films when dissolved in water. This property is exploited in the production of PVA-based films and coatings.

3. Chemical Stability

PVA is chemically stable, with resistance to oils, greases, and many solvents. However, it may be affected by strong acids and bases.

4. Biodegradability

PVA is biodegradable under certain conditions, making it an environmentally friendly material compared to some non-biodegradable polymers.

5. Versatility

PVA can be easily modified and blended with other polymers to tailor its properties for specific applications.