Polyvinyl Alcohol (PVA) 080-35 & PVA 2280
ANHUI LIWEI CHEMICAL CO.,LIMITED
[Introduction]
PVA, categorized as a polyvinyl alcohol (PVA), is produced through an alcoholysis reaction and subsequent polymerization of vinyl acetate. This material manifests as a white, powdery substance, characterized by stability and non-toxicity, and it exhibits remarkable water solubility. When introduced to water at room temperature, it readily dissolves to create a stable colloid.
INQUITRE NOWSpecifications
|
New Standard |
080-35 |
|
Old Standard |
22-80 |
|
Hydrolysis (mol%) |
79.0～81.0 |
|
Viscosity (mPa.s) |
32.0～38.0 |
|
Volatile(%) ≤ |
≤5 |
|
Ash (wt%) ≤ |
≤0.5 |
|
PH |
5-7 |
|
Purity (wt%) |
≥93.5 |
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 |
Free Quote
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.
Tel: 0086-25-52397803
E-mail: info@china-pva.net
Frequently Asked Questions
Key Properties of PVA
Water Solubility: One of the
most
prominent characteristics of
PVA is
its solubility in water, which
varies
depending on the degree of
hydrolysis
and polymerization.
Film-Forming Properties: PVA
can form
strong, transparent, and
flexible
films.
Adhesive Properties: Its
adhesive
properties make it widely used
in the
paper and packaging
industries.
Chemical Resistance: PVA has
good
resistance to oils, greases,
and
solvents, but is easily
degraded by
strong acids and bases.
Biodegradability: While PVA is
not
completely biodegradable, it
can break
down under certain conditions,
making
it more environmentally
friendly than
other synthetic
polymers.
Industrial Applications of
PVA
Textile Industry
Sizing Agent: PVA is used as a
sizing
agent in textile manufacturing
to
protect yarns during the
weaving
process.
Finishing Agent: It provides a
smooth
surface to fabrics, enhancing
their
appearance and
durability.
Paper and Packaging
Adhesives: PVA-based adhesives
are
favored for their strong
bonding and
fast-drying properties.
Coatings: Used in paper
coatings to
improve printability and water
resistance. Construction
Cement Additives: PVA is added
to
cement and mortar to enhance
flexibility and
adhesion.
Tile Adhesives: It improves
the bond
strength of tile
adhesives.
Pharmaceuticals
Drug Delivery: PVA is used in
the
formulation of
controlled-release drug
delivery systems.
Capsule Coatings: It is used
as a
coating material for capsules
and
tablets to control dissolution
rate.
Cosmetics and Personal
Care
Facial Masks: PVA is a common
ingredient in peel-off facial
masks
due to its film-forming
ability.
Hair Gel: It is used in hair
styling
products due to its ability to
form
flexible films.
Packaging
Water-Soluble Films: PVA is
used to
produce biodegradable
packaging films
that dissolve in water and
reduce
plastic waste.
