Polyvinyl Alcohol PVOH®552
ANHUI LIWEI CHEMICAL CO.,LIMITED
[Introduction]
PVOH552 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.
INQUITRE NOWSpecifications
| Appearance | Plat Yellow liquid |
|---|---|
| Total Solids wt% | 40.0±1.0 |
| Degree of Hydrolysis (mole %) | 55.0±2.0 |
| Viscosity@25℃, (mPa.s) | 800-2400 |
| Methyl alcohol (wt%)max | 5.0 |
| pH value | 4.5-7.0 |
Packing & Storage
|
Packing |
In 200kg drum or 1000kg IBC. |
|---|---|
|
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
GENERAL INFORMATION
PVOH®552 is a 55.0 mole% hydrolyzed, polyvinyl alcohol which has been specially developed for use as a secondary suspending agent for vinyl chloride suspension polymerization(S-PVC) PVOH®552 has a lower molecular weight of liquid PVOH in the grades.
USES
Specifically, PVOH®552 is a suspending agent for suspension polymerisation of vinyl chloride monomer (VCM). The use of PVOH®552 requires no significant plant modification.
STORAGE
1.PVOH®552 should be stored
away
from
wet areas and naked
flames.
Ingress of
moisture should
be avoided to maintain
product
quality.
2.As supplied, the product
should
remain fit for use for 12
months
from
the date of
delivery. Beyond that
date, the
material may still be fit
for use,
but
we would advise that
it is good practice to
test the
material. As such, we
advise that
material stored for 12
months or more after
delivery
should
be tested before
use.
3.PVOH®552 was a
water-based
secondary
suspending agent, It can
be fully
water-dilutable.
FOR USED IN VCM SUSPENDING POLYMERISATION
The principal advantages of
using
PVOH®552 can be summarized
as
follows.
1.Aqueous system.
2.Fully
water-dilutable.
3.High porosity and More
homogeneous
PVC.
4.Compatible with PVOH
primaries
and secondaries.
5.Low fish eyes count.
