PVA powder Introduction:
Polyvinyl alcohol (PVA) powder series of products is specialized in construction industry as an additive in all kinds of dry powder putty, dry mortar, tile adhesive, especially used for building putty and Mortar, improving the flexibility, water retention and increase viscosity of mortar and putty.It’s adhesion very good and used to be widely with paper making, sizing material for textile, adhesive, film, and dry mortar field.
Specification:
Item |
|
PVA04-99 |
Hydrolysis%(mol/mol) |
|
998.0-99.0 |
Viscosity mpa.s |
|
4.0-5.2 |
Volatile(%) |
≤ |
5.0 |
Ash (%) |
≤ |
0.7 |
pH value |
|
5-7 |
Purity (%) |
≥ |
93.0 |
Fineness | 20mesh |
Main Applications :
1,PVA 1799Ais mainly used for the feedstock of vinylon fiber.The vinylon staple yarn and vinylon tow-to yarn manufactured from the PVA1799 exhibits white color,high strength,perfect hygroscpy,abrasion resistance,sunshine resistance and corrosion resistance.They can be blended with cotton,wool and glue fiber for weaving separately ,which is widely used for clothing ,tarpaulin ,tire cord ,fishingnets and ropes, and they are also an idea substitute of asbestos.
2, PVA1799A also can used in the field of paper manking,especially used as pigment adhesive.With good adhesion,good filming and strengthing to paper, PVA water solution can be used as pigment adhesives to substitute casein and starch which is more expensive and easy to be corrosible.The whiteness and gloss of the wove paper coated with PVA solution will be perfect,not easy to be crimped and with lower cost.Therefore,it is widely used in art paper ,craft paper,clothing paper and other high-grade paper.
3,PVA1799A can still used as vinyl acetate emusification ,polymerization,film,asbestos,inorganic binder,temporary protection film and PVB resin.