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Home Product PVOH PVC Grade

PVOH PVC Grade

Modified Polyvinyl Alcohol

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.

Modified Polyvinyl Alcohol for PVC

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.

Main Grades and Specifications

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

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