SETAKY® POLYVINYL ALCOHOL 1788
PVA Introduction
Polyvinyl alcohol (PVA) powder series of products is specializedin 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.
Description of Product
Appearance: White Powder on Floor
Solubility: Stable in almost all organic solvents. Not dissolved in animal and plant oils and grease.
Application
Paper sizing agent
Warp sizing in textile
Adhesive
Raw material of polyvinyl alcohol panel and PVA thin film
Paint and Coatings
Medicine,cosmetic and functional materials
Emulgator and dispersing agent.
Specifications
a. Hydrolysis degree: 87.0%- 89.0%
b. Purity: ≥93.5%
c. Viscosity: 21.0- 28.0mpa.s
d. Volatile:≤5.0%
e. PH:5~7
f. Ash:≤0.4
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.
Package
A. Standard Packing: In 25kg paper bags inner with PE bags
B. Big Bag or other special packages are possible on request.