Poly (vinyl alcohol) CAS 9002-89-5 referred to as PVA, is a colorless, odorless, non-toxic linear polymer compound. It has good solubility in water and forms a colloidal solution. It has poor solubility in cold water at low temperatures, but can be miscible with other solvents such as ethanol and ether. PVA can be prepared into films or fibers with good flexibility and ductility. It has good resistance to chemicals such as acids and alkalis and high stability. Its molecules contain hydroxyl (OH) functional groups and have certain hygroscopic properties. Due to its special properties, it is widely used.
Packaging industry
- Water-soluble packaging film: Water-soluble film made of PVA can be used to package pesticides, fertilizers, detergents and other products. This film can dissolve quickly after contact with water, will not pollute the environment, and has good barrier properties, which can protect the packaged items from moisture and deterioration.
- Composite packaging materials: After compounding with other materials, the strength, toughness and barrier properties of packaging materials can be improved. For example, in food packaging, PVA composite film can effectively prevent the influence of oxygen, water vapor, etc. on food and extend the shelf life of food.
Electronic industry
- Electronic component packaging materials: PVA has good insulation properties and chemical stability, and can be used for the packaging of electronic components, protecting components from the influence of the external environment, and improving the reliability and stability of electronic equipment.
- Photoresist raw materials: In semiconductor manufacturing, PVA is one of the important raw materials for photoresist. Photoresist is a light-sensitive material used to form precise patterns on semiconductor wafers, in which PVA plays a role in film formation and photosensitivity.
Construction industry
- Adhesives: PVA can be compounded with other additives to make excellent construction adhesives for pasting tiles, wallpapers, and bonding materials such as wood and leather. It has good bonding strength and water resistance and can adapt to different building environments.
- Coating film former: As one of the film-forming substances of coatings, it can improve the water resistance, weather resistance and adhesion of coatings. It is widely used in interior and exterior wall coatings, which can make the coating form a uniform and tough paint film to protect the wall from erosion by the external environment.
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Why choose Gneebio?
Gneebio is a professional chemical raw material manufacturer and global distributor. Our company is located in Henan Province, China. We have multiple partner chemical factories in Henan, covering an area of 3,600 square meters, providing customers with a one-stop chemical procurement service, including mixing, repackaging, storage, and distribution.
Our hot-selling products include aromatic hydrocarbons (Naphtha (petroleum), Benzene, Toluene, o-Xylene, Styrene, Cyclohexane, Cyclohexanone, Epsilon-Caprolactam, 2-Anilinoethanol, etc.), alcohols (Ethylene Glycol, 1-Butanol, 2-Methyl-1-Propanol, Ethyl Alcohol, etc.), phenols and ketones (Phenol, Propafenone, Bisphenol A, Phenyl Methacrylate, Methyl Isobutyl Ketone, Phenolic Resin, etc.), and petrochemicals.We hope to establish long-term and mutually beneficial cooperation with more friends in the future and provide the best products and services for our customers.