Polyvinyl Alcohol PVOH8825RF
Overview
PVOH8825RFis a fully hydrolyzed medium molecular weight polyvinyl alcohol (PVOH). Using our exclusive
batch process which has advantages over other manufacturing methods,allows more efficient control over
the degree of hydrolysis and particle size of the product.
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Specifications
| Appearance |
Nearly white spherical particle |
| Solid content(min)w/w% |
98.0
|
|
Alcoholysis (mole%)
|
88.5±2.0
|
|
Degree of polymerization
|
1750±100.0
|
| PH |
5.0-7.0
|
| Ash content (Na2O) max% |
0.15
|
| Total VOCS (max%) |
0.4
|
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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| Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises in anhui
province.In 2010,Liwei PVA is evaluated as advanced and high technical company.
We mainly deals in polyvinyl alcohol,PVA,PVA fiber and raw materials for producing PVA like vinyl
acetate,calcium carbide.
|
|
For samples, pricing, or more information, please call us at 0086-25-52397803 or mail
to info@china-pva.net or fill out the
following form. We will respond to you as soon as
possible.
|
Frequently Asked Questions
What is PVOH 8825RF?
PVOH 8825RF, as an anionically modified polyvinyl alcohol that has been subjected to specific treatments
or the addition of other components to change its original properties to meet the needs of a particular
application. This modification may involve chemical modification, physical modification, or a combination
of both and is designed to optimize certain properties of the polyvinyl alcohol, such as enhanced
mechanical strength, improved solubility, improved thermal stability, etc. The mechanical strength of PVA
films produced using this particular PVOH variant increases proportionally with the degree of
polymerization or alcoholization.
What is PVOH 8825RF used for?
PVOH 8825RF is designed for the production of biodegradable PVA films. It can be compounded with
conventional PVOH to reduce costs and with PVOH 728F to improve the overall performance of the PVA film.
How is PVOH 8825RF packaged and stored?
Packaging: Sealed with materials with moisture-proof properties, weight 25kg/bag.
Storage：The
storage place should be kept dry, cool and ventilated, avoiding direct sunlight and high temperature.
How is PVOH 8825RF produced?
The polyvinyl alcohol is first mixed with an alcoholizing agent and partially alcoholized; then, the
partially alcoholized PVOH is subjected to post-treatment, such as neutralization and washing, to remove
unreacted alcoholizing agents and by-products. After removing impurities from the product, the purified
PVOH 823G is adjusted to the desired particle size range by processes such as grinding or crushing.
Finally, the product is dried to remove excess moisture to ensure product stability and storage.
What are the safety precautions for the use of PVOH 8825RF ?
PVOH 8825RF itself is a non-toxic, odorless, non-polluting, and environmentally friendly product.
However, when using, appropriate protective equipment such as masks and gloves should be worn, and the
operating instructions in the product manual should be followed.
In addition, hazardous situations such as fire or explosion may occur under certain specific
circumstances, such as exposure to high temperatures and sources of ignition, so ensure that the storage
environment is away from sources of ignition and high-temperature areas.
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