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Polyvinyl Alcohol (PVA) resin is a synthetic polymer that is water-soluble and known for its excellent film-forming, emulsifying, and adhesive properties. It is typically produced through the hydrolysis of polyvinyl acetate and is characterized by its high tensile strength and flexibility. PVA resin is widely used in various applications due to its biodegradable nature and compatibility with other materials.
| Chemical formula | C2H4O |
| Molecular weight | Approximately 44 g/mol |
| Viscosity | Varies from 4 to 100 mPa·s depending on concentration |
| Solubility | Soluble in water |
| Density | 1.19 to 1.31 g/cm³ |
When selecting Polyvinyl Alcohol resin, buyers should consider the degree of hydrolysis, which affects solubility and adhesive properties. It's important to specify the viscosity and molecular weight required for the intended application. Additionally, inquire about certifications for food contact and environmental compliance if relevant to your use case. Quantities can vary widely based on application needs, so be prepared to discuss your specific requirements.
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Yes, PVA resin is biodegradable under certain conditions.
Common grades vary based on hydrolysis levels and viscosity.
Yes, PVA resin is often used in food packaging applications.
PVA resin provides strong adhesion and flexibility in adhesive formulations.
PVA resin is generally considered safe for skin contact, but always check specific formulations.
The shelf life can vary, but it is typically around 1-2 years when stored properly.