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Polyvinyl alcohol ( CHINA PVA ) PVA 1798
1. Polyvinyl alcohol PVA Performace
Polyvinyl alcohol (abbreviated as PVA) also can be called PVOH. It is a kind of heavy polymer, produced by polymerization and alcoholysis of vinyl acetate. PVA is white or light yellow floccus, granular or powdery in appearance. Its molecular formula is[CH2CHOH]n,and the molecular formula for some of the PVA is -[CH2CHOH]n-[CH2CHOOCCH3]m-. PVA is non-toxic, insipid and harmless. It is water-soluble and the solvent provide good viscosity and film building.
PVA property:
Name: polyvinyl alcohol ,PVA,PVOH
MF: [C2H4O]n
Appearance: white granular or powder
CAS No.: 9002-89-5
PVA specifications:
PVAL Type |
Viscosity (mp.s) |
Alcoholysis Degree %(mol/mol) |
Volatile (%) |
Sodium Acetate (%) |
Ash (%) |
PH Value |
PVA26-99(L) |
54-68 |
98.0-100 |
≤6 |
≤2.5 |
≤1.0 |
5-7 |
PVA24-99(L) |
44-54 |
98.0-100 |
≤6 |
≤2.5 |
≤1.0 |
5-7 |
PVA22-99(L) |
36-44 |
98.0-100 |
≤6 |
≤2.5 |
≤1.0 |
5-7 |
PVA20-99(L) |
30-36 |
98.0-100 |
≤6 |
≤2.5 |
≤1.0 |
5-7 |
PVA17-99(L) |
22-30 |
98.0-100 |
≤6 |
≤2.5 |
≤1.0 |
5-7 |
PVA26-88(L) |
54-68 |
86.0-90.0 |
≤6 |
≤2.5 |
≤0.7 |
5-7 |
PVA24-88(L) |
44-54 |
86.0-90.0 |
≤6 |
≤2.5 |
≤0.7 |
5-7 |
PVA17-88(L) |
20-26 |
86.0-90.0 |
≤6 |
≤2.5 |
≤0.7 |
5-7 |
PVA05-88(L) |
4-6 |
86.0-90.0 |
≤6 |
≤2.5 |
≤0.7 |
5-7 |