Fully hydrolyzed polyvinyl alcohol (PVA) is a water-soluble synthetic polymer that has a wide range of applications due to its unique properties. Here are some of the advantages of using fully hydrolyzed PVA:

1. Water Solubility: Fully hydrolyzed PVA is highly water-soluble, making it easy to dissolve in water to create solutions of varying concentrations. This property is particularly useful in applications where water-based solutions are required.

2. Film-Forming Properties: Fully hydrolyzed PVA can be used to create films and coatings due to its ability to form a transparent and flexible film when the water evaporates. This makes it suitable for applications in packaging, adhesives, and coatings.

3. Biodegradability: PVA is considered to be biodegradable under certain conditions, which makes it an environmentally friendly option compared to non-biodegradable polymers. This is especially important in applications where disposal and environmental impact are concerns.

4. Chemical Resistance: Fully hydrolyzed PVA exhibits good chemical resistance against a variety of chemicals. This property can be advantageous in applications where the polymer needs to maintain its integrity and properties in the presence of different substances.

5. Versatility: PVA can be modified and blended with other polymers to enhance or modify its properties. This versatility allows for tailoring the material to meet specific application requirements.

6. Adhesion and Binding: PVA's adhesive properties make it suitable for applications where binding materials together is required. It is commonly used in adhesives, paper coatings, and as a binder in various formulations.

7. Textile Industry: In the textile industry, fully hydrolyzed PVA can be used as a sizing agent to improve the weaving process by providing temporary adhesion between fibers and preventing yarn breakage.

8. Medical and Pharmaceutical Applications: PVA's biocompatibility and water solubility make it suitable for various medical and pharmaceutical applications, including drug delivery systems, wound dressings, and controlled-release formulations.

9. Emulsification: Fully hydrolyzed PVA can act as an emulsifier, helping to stabilize emulsions of oil and water. This property is valuable in applications like paints, coatings, and cosmetics.

10. Suspension and Thickening Agent: PVA can function as a suspension and thickening agent in various formulations, such as in paints, coatings, and personal care products.

11. Photographic Industry: PVA has historically been used in the photographic industry for its ability to hold photographic emulsions and as a component in photoresists for microfabrication processes.

12. Casting and Molding: PVA can be used in casting and molding applications where water-soluble molds are desired. Once the casting is complete, the mold can be dissolved, leaving the desired object.