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Product Description
(1) Solubility: hydrophilic, easily soluble in water (generally dissolved in hot water above 90℃), insoluble in almost all organic solvents.
(2) Film formation: easy to form film, the mechanical properties of the film is excellent. In addition to H2O, PVA film has excellent resistance to H2, N2, O2 and other gases.
(3) Adhesion: good adhesion with hydrophilic cellulose, paper, etc.
(4) Thermal stability: when the 17-99 flake is heated to more than 130℃, the appearance gradually changes. Fully hydrolysed PVA begins to melt at about 230 ° C and decompose above 200 ° C.
(5) Solvent resistance: PVA has strong resistance to weak acid and weak alkali, and has good oil resistance.
(6) Reactivity: with excellent cross-linking reactivity, can cross-link with boric acid, acetal reaction with formaldehyde, acetaldehyde, etc., the product has water resistance.
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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.
