Description of the polyvinyl alcohol specification code PVA 1799F(L)
Description of the polyvinyl alcohol specification code PVA 1799F(L)
Eg: PVA 17-99F(L)
In this code
PVA means the abbr. of polyvinyl alcohol
17 means the average degree of polymerization
99 means the alcoholysis degree
F means the product is mainly used for fiber production. With no F, it means for other purposes
L means produced by low alkalinity alcoholysis process
H means by high alkalinity alcoholysis process
Flocculent product produced by high alkalinity alcoholysis process, flake and powder by low alkalinity alcoholysis process.