PVA MANUFACTURER---LIWEI CHEMICAL CO. LTD

The Main Roles of PVA 2488

Polyvinyl Alcohol (PVA) is a solution of vinyl acetate by the reaction of an alcohol, formed by polymerization, is a white powder, stable and non-toxic water-soluble polymers can be quickly dissolved in water at room temperature to form a stable colloidal water is a good solvent of Polyvinyl Alcohol. Polyvinyl Alcohol has both hydrophilic and hydrophobic functional groups of two, is a surfactant substance, Polyvinyl Alcohol polymer emulsion, suspended protective colloid in polymerization.
The roles of PVA 2488:
PVA 2488 polymer powder is particularly suitable for use as building mortar additive, used with the methyl ethers of cellulose absorbent, can improve flexibility of cement mortar, water retention, improve mortar adhesion. In addition, Polyvinyl Alcohol PVA 2488 can also reduce the friction of the mortar, enhances the working efficiency and quality. (To prevent cracking of the plaster layer and peeling, increase strength and smoothness). PVA 2488 polymer powder, easy to disperse in cold water, quickly dispersible in water, aqueous solution viscosity stability good, this can improve many of the characteristics of cement mortar, and there are function of capillaries, adsorption.
Properties of PVA 2488 differences mainly determined by its degree of polymerization and alcoholysis, influence of polymerization degree on its characteristics:
Degree of polymerization increased molecular weight increases, the viscosity increases.
Degree of polymerization increased solubility decrease permeability reduction.
Dissolution method: Polyvinyl alcohol powder and other powder ingredients, mixing by dry mixing sufficiently dispersed. Then dissolved in water, then the PVA can be dissolved, and without cohesion.