Product Description
Polyvinyl Alcohol (PVA)
Polyvinyl Alcohol (PVA), is a water-soluble synthetic polymer renowned for its exceptional versatility, biodegradability, and outstanding physicochemical properties. It is produced through the hydrolysis of polyvinyl acetate, resulting in a polymer whose specific characteristics-such as solubility, viscosity, and adhesion strength-can be precisely tailored by adjusting its degree of hydrolysis and polymerization. This adaptability makes PVA an indispensable material across a wide spectrum of industries.
This unique combination of tunable properties, environmental compatibility, and multifunctionality establishes PVA as a critical performance polymer in fields ranging from specialty adhesives and advanced packaging to construction materials and textile processing.
Key Features & Advantages
PVA boasts a unique combination of properties: it forms strong, flexible, and transparent films; exhibits excellent adhesive strength; and is resistant to oils, solvents, and greases. Its high oxygen barrier properties further enhance its utility in packaging. As a non-toxic and biodegradable polymer, PVA is also an environmentally conscious choice for modern applications.
Technical Specifications
PVA is typically characterized by its degree of hydrolysis (ranging from partially hydrolyzed
|
Product Name |
Polyvinyl Alcohol |
|
Form |
Free-Flowing Powder |
|
Color |
White to Off-White |
|
Ash Content |
≤ 0.7% |
Functional Properties and Advantages
PVA possesses an exceptional combination of physicochemical properties that make it indispensable across industries:
√ Film-Forming Capability: Forms strong, flexible, and highly transparent films with outstanding oxygen barrier properties (when dry)
√ Adhesive Strength: Demonstrates excellent adhesion to porous surfaces like paper, wood, and textiles
√ Solubility Characteristics: Water-soluble at specific temperatures, with solubility tunable through hydrolysis degree
√ Chemical Resistance: Resistant to oils, greases, and organic solvents
√ Biodegradability: Undergoes microbial degradation in soil and water environments
√ Emulsifying & Suspending Ability: Effectively stabilizes emulsions and suspensions
Packaging & Storage
Packaging: 25 kg/bag, 500 kg/pallet, or customized packaging.
Storage: Store in a cool, dry place away from moisture.
Shelf Life: 24 months in sealed original packaging.
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