Polyvinyl Alcohol PVOH552
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.
Specifications
| 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 0086-25-51192301 or mail to sales3@china-pva.net or fill out the following form. We will respond to you as soon as possible.
Tel: 0086-25-51192301
E-mail: sales3@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.
