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.
|
|
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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