Polyvinyl Alcohol PVOH728F
Overview
PVOH 728F is a partially alcoholized, low molecular weight polyvinyl alcohol (PVOH) product, usually
appearing as light yellow particles. It is specifically designed for the production of specialized
PVOH grades used in PVA films.
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Specifications
Appearance |
Nearly white spherical particle |
Solid content(min)w/w% |
98.0
|
Alcoholysis (mole%)
|
72.5.0±1.0
|
Degree of polymerization |
800±30.0
|
PH |
5.0-7.0
|
Ash content (Na2O) max% |
0.3
|
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.
|
What is PVOH 728F?
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. |
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Frequently Asked Questions
What is PVOH 728F?
PVOH 728F is a partially alcoholized, low molecular weight polyvinyl alcohol (PVOH) product, usually
appearing as light yellow particles. It is specifically designed for the production of specialized PVOH
grades used in PVA films. It has excellent properties such as water solubility, transparency, heat
resistance, antistatic, etc., and has a wide range of application prospects in packaging, agriculture,
medicine, and other fields.
What is PVOH 728F used for?
Packaging: PVOH 728F can be used in the manufacture of water-soluble films, which dissolve quickly in
contact with water and are suitable for industries requiring fast, convenient, and environmentally
friendly packaging, such as cosmetics, food, and pharmaceuticals. PVOH 728F can also be used in the
manufacture of difficult-to-solve films. These insoluble films can only dissolve under certain conditions,
making them ideal for packaging needs that require product integrity and stability over long
periods.
Agriculture: PVOH 728F can be used as a seed coating material. The coated seed can protect the seed from
environmental factors, improve the germination rate and growth quality of the seed, and not pollute the
soil. PVOH 728F can also be used to manufacture pesticide carriers by controlling the pesticide release
rate and mode to improve the effectiveness of pesticide use and reduce the negative impact on the
environment.
Pharmaceutical field: PVOH 728F can be used as a component of a drug release system. By adjusting the
dissolution rate of the film and the drug release mechanism, it is possible to realize the timed and
quantitative release of the drug and improve the efficacy and safety of the drug. In addition, PVOH 728F
can also be used to manufacture hygiene materials, such as disposable medical packaging, surgical gowns,
etc. Its excellent biocompatibility and degradability can meet the requirements of safety and
environmental protection in the field of medical and health care.
How is PVOH 728F 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 728F produced?
Polyvinyl alcohol (PVOH) resins and other additives are mixed, heated to a molten state and extruded
through an extruder, which undergoes a cooling and curing process to achieve the desired physical and
chemical properties, and finally cut and packaged.
What are the safety precautions for the use of PVOH 728F ?
PVOH 728F 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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