PVA Polyvinyl Alcohol
LIWEI CHEMICAL CO. LTD
|
Grades |
Hydrolysis |
Volatiles |
Viscosity |
Ash |
PH Value |
Purity |
|
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 |
| Name | ||
|---|---|---|
| Polyvinyl Alcohol 1788 & Polyvinyl Alcohol 1799 PVA 1788 & PVA 1799 | Order | Detail |
| Polyvinyl Alcohol 0588 & Polyvinyl Alcohol 0599 PVA 0588 & PVA 0599 | Order | Detail |
| Polyvinyl Alcohol 2488 & Polyvinyl Alcohol 2499 PVA 2488 & PVA 2499 | Order | Detail |
| Polyvinyl Alcohol 0488 & Polyvinyl Alcohol 0499 PVA 0488 & PVA 0499 | Order | Detail |
| Polyvinyl Alcohol 1492 & Polyvinyl Alcohol 1498 PVA 1492 & PVA 1498 | Order | Detail |
| Polyvinyl Alcohol 1792 & Polyvinyl Alcohol 1798 PVA 1792 & PVA 1798 | Order | Detail |
| Polyvinyl Alcohol 2088 & Polyvinyl Alcohol 2099 PVA 2088 & PVA 2099 | Order | Detail |
| Polyvinyl Alcohol 2699 PVA 2699 | Order | Detail |
| Packing | Our polyvinyl alcohol products are packed in craft paper bag. Net weight 12.5kgs or 20kgs if floccule, Net weight 25kgs /20kgs if powder or Granule. |
|---|---|
| Storage | Powder 20°C 2 years; Floccule 20°C 2 years. |
| Shipping | Room temperature 5-30℃ in China; may vary elsewhere |
| Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises in anhui province.In 2005,Liwei PVA is evaluated as advanced and high technical company. We mainly deals in polyvinyl alcohol,PVA,PVA fiber and raw materials for producing PVA like vinyl acetate,calcium carbide. |
| For samples, pricing, or more information, please call us at 0086-25-52397803 or mail to info@china-pva.net or fill out the following form. We will respond to you as soon as possible. |
| Common Names | Polyvinyl Alcohol | ||
|---|---|---|---|
| Structure | (C2H4O)n | ||
| CAS No. | 9002-89-5 | Boiling Point(℃) | 23.5±13.0 |
| Molecular Weight | 44.0526 | Melting Point(℃) | 200 °C |
| Appearance | White crystalline | Vapor Specific Gravity | No data available |
| HS Code | 390530 | Flash Point(℃) | No data available |
| Solubility | Soluble in water (above 95℃), slightly soluble in dimethyl sulfoxide | Autoignition Temperature(℃) | No data available |
| Safety Phrases | None | ||
|---|---|---|---|
| RIDADR | None | ||
| WGK Germany | None | ||
| Packaging Group | None | ||
| Hazard Class | None | ||
| SYMPTOMS | PREVENTION | FIRST AID | |
| Inhalation | None | None | If breathed in, move person into fresh air. If not breathing, give artificial
respiration. Skin |
| Skin | None | None | Wash off with soap and plenty of water. Eyes |
| Eyes | Redness | None | Flush eyes with water as a precaution. |
| Ingestion | Nausea. Vomiting | None | Never give anything by mouth to an unconscious person. Rinse mouth with water. |
| PVA is produced with calcium carbide as raw material. After calcium carbide reacts with water to form acetylene, acetylene synthesizes with acetic acid to form vinyl acetate, then methanol is used as the solvent to polymerize, Through alcoholysis, poly-vinyl acetate changes to PVA. After being crushed and dried, it becomes finished product. |
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.
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.
