polyvinyl alcohol
Tianjin Elong Co., Ltd. [China] 
Minimum Order: 0
Quality/Safety Certification: 0.00
PVA is a high molecular weight water-soluble, non-toxic, odorless, Dull or flake - like solid particles. the basic nature decidi
| Product Name: polyvinyl alcohl |
| Product packing: Like chart |
| Product performance: PVA is a high molecular weight water-soluble, non-toxic, odorless, Dull or flake - like solid particles. the basic nature deciding from degree of polymerization and degree alcohol solution, soluble in water, insoluble in organic solvents in general. PVA better chemical stability and good insulation. Is a chemical properties of polyols can esterification, etherification reaction and sponges. In addition, also has the following unique properties : Water-soluble: polyvinyl with the different alcohol solution and viscosity of a slight difference water-soluble . PVA solution to the storage stability PVA solution is almost not chemical changes in Long-term preservation . At room temperature, the viscosity will increase gradually with the extension of the Keeping Time ; Changes in the gel at low temperatures. Stir while heating into solution can be return. If prolonged place, the solution can be added inhibitor, preservatives, stabilizers defense viscosity gel detergent. However, the use of additives should pay attention to product quality and performance. viscosity: PVA solution with hydrophilic cellulose have a very good bonding, bond strength with the rise of Glycolysis and the rise of a higher degree of polymerization increasing. Anti - solvent nature: PVA Dissolved in the hydroxy polar solution , but it is easy to change the gel , generally do not dissolve in non-polar organic solvents. not soluble inorganic acid, water is the best solvent. Thermal Stability : PVA has good thermal stability at 140 'C does not undergo any change. |
| The product with catches: |
| PVA Mainly used in the production of vinylon, adhesives, architectural coatings, textile and pulp, pharmaceutical and food packaging materials. as a non-ionic polymer emulsive Stabilizer , pesticides and papermaking Dispersant, such as soil improvers. |
