Overview
PVOH 728F is a low-molecular-weight polyvinyl alcohol (PVOH) product typically present as pale yellow granules. This product is specifically designed for the production of PVOH grades specifically for PVA film.
General properties
PVOH 728F is a partially alcoholized, low molecular weight polyvinyl alcohol (PVOH) specifically engineered for the production of specialized PVOH grades used in PVA films. The film formed by 728F exhibits exceptional transparency, excellent gas resistance, and remarkable heat resistance to organic solvents. It also demonstrates strong anti-fog performance, high antistatic properties, superior moisture permeability, and good water solubility.
Applications
The 728F is specifically designed for the production of biodegradable PVA films. It can be combined with common PVOH to optimize cost efficiency, as well as used in conjunction with other grades to enhance the overall performance of PVA films.
Package
Packed in 25 kg paper bags.
Storage
PVOH 728F should be stored in a ventilated and dry warehouse, away from direct sunlight and water. It should also be kept away from moisture and fire. The product must be used within 12 months of delivery, but if it is stored for more than 12 months, it is recommended to test before use.
Technical Data
| Appearance | Nearly white spherical particle |
| Solid content(min)w/w% |
98.0
|
|
Alcoholysis (mole%)
|
72.5±1.0
|
|
Degree of polymerization
|
800±30.0
|
| PH |
5.0-7.0
|
| Ash content (Na2O) max% |
0.3
|
| Total VOCS (max%) |
0.4
|
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