Overview
Modified polyvinyl alcohol (PVOH) is graded according to different degrees of polymerization, hydrolysis and copolymerization monomers.
The modification of PVA is mainly to use the double bonds, ester groups and the chemical activity of the hydroxyl group after alcoholization of vinyl acetate to change the side chain group or structure, and introduce other monomers to become copolymers dominated by PVA.
General properties
PVOH 452 is a 45mol% aqueous solution of polyvinyl alcohol. Unlike conventional polyvinyl alcohol (soluble in specific alcohols, insoluble in water), it is completely soluble in water and has a very low methanol content.
Packages
Packages:In 25 kg/bag.
Storage
Modified PVA for PVC can be stored for an unlimited period of time under appropriate conditions that is in its original packs in closed, dry rooms, at room temperature.
Technical Data
Title | 452 |
Main categories | Auxiliary dispersant |
Specification | |
Solids |
40.0±1.0%
|
Degree of hydrolysis |
43.0-47.0
|
viscosity@25℃BF DV2T(mPa.s) | 800-2400mPa.s |