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PVA Polyvinyl Alcohol 100-60(PVA 2499)

LIWEI CHEMICAL CO. LTD

Specifications

Polyvinyl Alcohol PVA 100-60

 

Grade

PVA 100-60

Hydrolysis (mol%)

98.0-100.0

Volatiles (%) ≤

5.0

Viscosity (mpa.s)

58.0-68.0

Ash (wt%) ≤

0.7

PH Value

5-7

 

Packing & Storage

Packing Our polyvinyl alcohol products are packed in craft paper bag. Net weight 12.5kgs or 20kgs if floccule, Net weight 25kgs /20kgs if powder or Granule.
Storage Powder 20°C 2 years; Floccule 20°C 2 years.
Shipping Room temperature 5-30℃ in China; may vary elsewhere
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Frequently Asked Questions

Product Properties of Polyvinyl Alcohol 100-60

Polyvinyl alcohol (PVA) is a synthetic polymer that exhibits various properties depending on its molecular weight and degree of hydrolysis. The product properties of Polyvinyl Alcohol 100-60 include:

1. Molecular Weight: PVA 100-60 refers to the molecular weight range of the polymer. In this case, the molecular weight typically ranges between 100,000 to 60,000 g/mol. The molecular weight affects the viscosity and mechanical properties of the PVA.

2. Degree of Hydrolysis: PVA is derived from the hydrolysis of polyvinyl acetate, where some of the acetate groups are replaced by hydroxyl groups. The degree of hydrolysis represents the percentage of hydroxyl groups present in the polymer chain. PVA 100-60 usually indicates a moderate degree of hydrolysis.

3. Solubility: PVA 100-60 is typically water-soluble, forming clear and viscous solutions when dissolved in water. The solubility of PVA decreases with increasing molecular weight and higher degrees of hydrolysis.

4. Film-Forming Properties: PVA 100-60 can be cast into films by drying its aqueous solutions. The resulting films are transparent, flexible, and exhibit good barrier properties against gases and oils.

5. Adhesive Properties: PVA 100-60 is widely used as a binder or adhesive in various applications. It forms strong and flexible bonds with a variety of surfaces, including paper, wood, fabric, and porous materials.

6. Chemical Stability: PVA is generally chemically stable and resistant to most organic solvents, acids, and bases. However, it can undergo degradation upon exposure to high temperatures or prolonged contact with strong acids or alkalis.

7. Biodegradability: PVA 100-60 is considered partially biodegradable under certain conditions. Microorganisms such as bacteria and fungi can enzymatically degrade PVA, making it a suitable material for environmentally friendly applications.

8. Film Transparency: PVA 100-60 films exhibit high transparency, allowing them to be used as a base for various coatings, laminates, or protective layers.

9. Low Toxicity: PVA is generally considered safe for use in various applications. It is non-toxic and does not release harmful fumes during processing or use.

10. Applications: PVA 100-60 finds application in various industries such as adhesives, coatings, textiles, packaging, paper, construction, and as a component in personal care products.

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