Polyvinyl Alcohol (PVA) 098-30 & PVA 1899
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 |
098-30 |
|
Old Standard |
18-99 |
|
Hydrolysis (mol%) |
98.0～98.8 |
|
Viscosity (mPa.s) |
28.0～32.0 |
|
Volatile(%) ≤ |
≤5 |
|
Ash (wt%) ≤ |
≤0.7 |
|
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
What is Polyvinyl Alcohol (PVA)?
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.
