Polyvinyl Alcohol

 

Molecular Structure:

-(-CH2 - CH-)n-

|

OH

 

Process: Polyvinyl alcohol is produced from vinyl acetate by polymerization and low-alkali-alcoholysis.

 

Physical properties: Polyvinyl alcohol is a white soluble high-molecular compound, not soluble in ordinary organic solvents. It is a white solid in the form of flakes, with excellent tensile stress, mouldability, impact strength, wear resistance and excellent electrical insulation.

 

Specification: Grade: 1799 (≥16mesh)

No.

Item

1st - grade

1

Hydrolysis, % mole/mol

99.0 + 1.0

2

Volatileness, % ≤

8.0

3

Viscosity, mPa.s

28.0 + 4.0

4

Ash, % ≤

1.0

5

pH

6 - 9

 

Major applications: Used as raw material to produce coating material and adhesives etc. also to produce pulp finishing agent, soil ameliorator, film and polyvinyl butyral etc.

 

Packing: 25kg net in PP woven bag coated with plastic.

 

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