| Customization: | Available |
|---|---|
| Function: | Film-Forming and Adhesive |
| Certification: | Cp / ISP / Ep |
|
Still deciding? Get samples of US$ 50/kg
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Product Description
Polyvinyl Alcohol (PVA) is a water-soluble synthetic polymer with excellent film-forming and adhesive properties. It is made by polymerizing vinyl acetate and then hydrolyzing the resulting polymer to remove the acetate groups. The degree of hydrolysis determines the water solubility and viscosity of PVA. It is available in various grades and forms, including powder, granules, and flakes.
Function
PVA exhibits exceptional film-forming properties, making it a valuable ingredient in the production of coatings, adhesives, and films. It forms transparent and flexible films when dried, offering excellent barrier properties to gases and moisture. PVA also possesses good tensile strength, tear resistance, and impact resistance. It can be easily dissolved in water to form a viscous solution, enabling its use in various applications.
Application
1. Coatings: PVA is widely used in the formulation of water-based paints and coatings. It acts as a binder, providing adhesion, durability, and smoothness to the applied surface. PVA-based coatings are commonly used for paper, textiles, wood, and other porous substrates.
2. Adhesives: PVA is a key component in many adhesive formulations, especially in the woodworking and packaging industries. It forms strong bonds with various materials, such as paper, cardboard, wood, and fabrics. PVA adhesives offer good initial tack, high bond strength, and good resistance to humidity.
3. Films: PVA films find applications in various industries, including packaging, agriculture, and textiles. Due to their excellent water solubility, they are often used as water-soluble packaging materials for single-use products, detergent pods, and agricultural chemicals. PVA films can also be modified to enhance their mechanical properties and make them biodegradable.
4. Textiles: PVA can be used in textile sizing and finishing processes to improve fabric strength, abrasion resistance, and wrinkle resistance. It can also act as a temporary adhesive for embroidery and as a component in textile printing pastes.
5. Personal Care: PVA is utilized in the production of personal care products such as hair gels, hair sprays, and face masks. It provides viscosity, film-forming properties, and adhesion to these formulations, enhancing their performance and stability.
){kind=link}