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Product Description
Specifications
a. Hydrolysis degree: 98.0% - 100.0%
b. Purity: ≥93.5%
c. Viscosity: 45.0 - 58.0mpa.s
d. Volatile：≤5.0%
e. PH：5~7
f. Ash：≤0.7%
Storage
The material is very stable with no risk of molding and deteriorating. Under dry condition. Indefinite when protected from moisture.
Dissolving Method
Pouring a certain amount of water into the dissolving tank, the water temperature should be below 30 ℃, then start the blender and pour into PVA slowly, the filling speed with PVA should be keep into 10 kilograms per minutes advisable. Confirm the PVA powder has fully dispersed (about 10-20 minutes) then heat the solution, and it can be completely dissolved when heat to 90 ℃ about 1 hour.
Method of analysis
Viscosity is measured in 4% aqueous solution at 20℃. By a Brookfield type viscosimeter. PH is measured in 4% aqueous solution at 20℃ash expressed as Na2O.
Details Images
Packing & Delivery
Company Profile
Ningxia Double Tower Chemical Co., Ltd. is a company specializing in the export trade of polyvinyl alcohol, established in 2015, located in the Shizuishan Economic and Technological Development Zone, Ningxia.
The company's main product is polyvinyl alcohol, with a complete range of products, covering products of different specifications with a degree of polymerization of 300 to 3000 and a degree of alcoholysis of 75 to 100. The main form is flake granules, and powders of 10-120 mesh can also be provided. At present, 12 varieties of the 99 series (0499, 0599, 1099, 1299, 1599, 1799, 1899, 2099, 2499, 2699, PVB special material, fiber special material) and 6 varieties of the 88 series (0388, 0588, 1588, 1788, 2088, 2488) have been produced. Among them, 0599, 0588, 1099 and PVB special materials as new products have greatly expanded the market and have relatively high added value.
The company has an experienced sales team, always customer-centered, quality as life, innovation as the soul, adheres to the concept of green and sustainable development, and continuously improves the added value of PVA. We look forward to working with you to create a better future.
