PVA MANUFACTURER---LIWEI CHEMICAL CO. LTD

PVA Polyvinyl Alcohol

PVA Polyvinyl Alcohol

1.Introduction To Polyvinyl Alcohol
Polyvinyl alcohol (abbreviated as PVA) also can be called Poval is a kind of water-soluble resin produced by polymerization and alcoholysis of vinyl acetate. Due to its unique features of high cohesiveness, membrane tenacity, smoothness, solvent resistance, gas inhibitor, wear resistance, protective colloid, and waterproof after specially treated, polyvinyl alcohol is widely applied in textile, building, papermaking, packing, timber processing, agriculture, printing, polymer chemical, ceramic, iron and steel, electronic, electrolytic, electroplating and other industries. As excellent synthetic fibers, it can also be spun and acetalized to make vinylon fiber.
Liwei can produce PVA series in large quantity with polymerization degrees of 1,700-2,800 and alcoholysis degrees of 88-99.9 (mol/mol) %, featuring consistent quality, high purity, white color, high transparency, and stable viscosity. Apart from production of general PVA readily available for customers, the company also develops a variety of PVA tailored for customers specific purposes.
2. PVA Properties
Polyvinyl Alcohol Poval is high polymer with excellent characters to dissolve easily in water but not to dissolve in common organic solvent and organic acids, and with excellent film-forming property,oil resistant, chemical-resistant. It can react with formaldehydes to form polyvinyl acetal.
3. Package
Our polyvinyl alcohol products are packed in craft paper bag. Net weight 12.5kgs or 20kgs if floccule, Net weight 25kgs if powder, Net weight 20kgs if flake.

Grades

Hydrolysis
(mol%)

Volatiles
(%)

Viscosity
(mpa.s)

Ash
(wt%)

PH Value

Purity
(wt%)

Grades are being produced regularly

PVA1788

87.0-89.0

5

20.5-24.5

0.4

5-7

93.5

PVA1888

86.0-90.0

6

23.5-28.5

0.5

5-7

92.5

PVA1895

94.0-96.0

5

26.0-30.0

0.5

5-7

93.5

PVA1799

98.0 99.4

5

23.0-29.0

0.7

5-7

93.0

PVA2488

87.0-89.0

5

45.0-55.0

0.5

5-7

93.5

 

PVA0499

98.0 99.4

5

4.0-5.0

0.7

5-7

93.0

PVA0498

98.0 98.8

5

4.0-5.0

0.7

5-7

93.0

PVA0588

87.0-89.0

5

4.5-6.0

0.7

5-7

93.0

PVA0599

98.0-99.0

5

5.0-6.5

0.7

5-7

93.0

PVA1098

97.0-99.0

5

8.0-12.0

0.5

5-7

93.5

PVA1399

98.0-99.0

5

13.0-17.0

0.5

5-7

93.5

PVA1388

87.0-89.0

5

12.0-14.0

0.5

5-7

93.5

PVA1797

96.0-98.0

7

23.0-29.0

0.7

5-7

93.5

PVA2088

87.0-89.0

5

29.0-34.0

0.5

5-7

93.5

PVA2497

96.0-98.0

5

54.0-64.0

0.5

5-7

93.5

PVA2499

98.0-99.0

5

55.0-65.0

0.5

5-7

93.5

Grades can be produced

PVA1897

96.0-98.0

5

27.0-31.0

0.5

5-7

93.5

PVA1795

94.0-96.0

7

22.0-28.0

0.5

5-7

93.5

PVA1899

98.0-99.0

5

28.0-32.0

0.5

5-7

93.5

PVA2099

98.0-99.0

5

34.0-39.0

0.5

5-7

93.5

PVA2288

87.0-89.0

5

38.0-42.0

0.5

5-7

93.5

PVA1792

91.0-93.0

5

21.0-27.0

0.5

5-7

93.5

PVA2092

91.0-93.0

5

28.0-34.0

0.5

5-7

93.5