Polyvinyl Alcohol PVOH823G
Overview
PVOH823G is 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% |
98.55
|
|
Alcoholysis (mole%)
|
85.0±2.5
|
| Viscosity @20℃, 4% aqueous solution |
23±1.5
|
| PH |
5.0-7.0
|
| Ash content (Na2O) max% |
≤0.2
|
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 823G?
PVOH 823T is a partially alcoholized, medium molecular weight polyvinyl alcohol (PVOH) product with
excellent solubility, film forming, and other properties. In addition, PVOH 823T is known for its
ultra-high purity and ultra-low ash content. The high purity ensures stability and reliability, allowing
it to excel in demanding applications; the low ash content helps to reduce impurities or contaminants that
may be generated during the product's use, further enhancing its application value.
What is PVOH 823G used for?
Paper industry: It can be used as a wet strength agent or other functional additive in the papermaking
process.
Inkjet industry: Its film-forming properties and water resistance make it an ideal
component in inkjet ink formulations.
It can also be used in the field of adhesives, cosmetics, oil
well cementing, etc.
How is PVOH 823G 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 823G 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 823G ?
PVOH 823T 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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