PVOH PVC Grade
Modified polyvinyl alcohol (PVA) is a widely used synthetic polymer. Chemical or physical modification can significantly enhance its overall performance, making it more suitable for a variety of industrial and commercial applications. Traditional PVA, produced by hydrolysis of polyvinyl acetate, is widely used due to its excellent water solubility, film-forming properties, and biodegradability. However, unmodified PVA still has shortcomings in moisture resistance, thermal stability, and mechanical strength. Targeted modification can effectively overcome these limitations, giving the material even better performance in harsh environments.
ANHUI LIWEI has extensive expertise in the application of polyvinyl alcohol (PVA or PVOH)-based suspending agents, meeting the needs of polyvinyl chloride (PVC) manufacturers. In this application, polyvinyl alcohol serves as a protective colloid in the polymerization of vinyl chloride.
Polyvinyl alcohol is a key component in the production of PVC resin via the suspension polymerization process, serving as the primary suspending agent. PVC can be produced through a variety of methods, from suspension polymerization to emulsion polymerization and bulk polymerization, but suspension polymerization is the most popular. Polyvinyl alcohol is a crucial suspending agent additive in the PVC production process, enabling control of the PVC's quality and technical properties.
| Title | Main categories | Solids | Degree of hydrolysis | viscosity | Packages | |
|---|---|---|---|---|---|---|
| PVOH 452 | Auxiliary dispersant | 40.0±1.0% | 43.0-47.0 | 800-2400 | 25℃ BF DV2T（mPa.s） | In 200 kg/drum |
| PVOH 552 | Auxiliary dispersant | 40.0±1.0% | 53.0-57.0 | <2400 | In 200 kg/drum | |
| PVOH 453 | 40.0±1.0% | 45.0±2.0 | 800-2400 | In 200 kg/drum | ||
| PVOH 725 | Primary dispersant | 98.0 | 71.0-75.0 | 4.8-7.0 | 4% aqueous solution 20 °c（mPa.s） | In 25 kg/bag |
| PVOH 735 | Primary dispersant | 98.0 | 73.0±1.0 | 5.3±0.5 | In 25 kg/bag | |
| PVOH 745 | Primary dispersant | 73.5±1.5 | 6.0±0.5 | In 25 kg/bag | ||
| PVOH 785 | Primary dispersant | 78.0±1.5 | 6.0±0.5 | In 25 kg/bag | ||
| PVOH 8035 | Primary dispersant | 98.0 | 80.0±1.5 | 35.0±3.0 | In 25 kg/bag | |
| PVOH 8039 | Primary dispersant | 98.0 | 80.0±1.5 | 39.0±3.0 | In 25 kg/bag | |
| PVOH 8048 | Primary dispersant | 98.0 | 80.0±1.5 | 48.0±3.0 | In 25 kg/bag | |
| PVOH 8548 | Primary dispersant | 85.0±2.5 | 48.0±3.0 | In 25 kg/bag | ||
| PVOH 8850 | Primary dispersant | 98.0 | 88.0±1.5 | 50.0±3.0 | In 25 kg/bag | |
| PVOH 9913 | 98.5 | 98.0-99.0 | 13.5±2.5 | In 25 kg/bag | ||
| PVOH 9655 | 97.0 | 95.0±1.5 | 55.0±4.0 | In 25 kg/bag | ||
| PVOH 8848 | 98.0 | 88.0±1.5 | 48.0±3.0 | In 25 kg/bag | ||
| PVOH 8830 | 98.0 | 88.0±1.5 | 30.0±2.5 | In 25 kg/bag | ||
| PVOH 990E | 96.5 | 99.0 | 17.50±15.0 | In 25 kg/bag | ||
