Shuangxin PVA Polyvinyl Alcohol
PVA , categorized as a polyvinyl alcohol (PVA), is produced through an alcoholysis reaction and subsequent polymerization of vinyl acetate. This material manifests as a white, powdery substance, characterized by stability and non-toxicity, and it exhibits remarkable water solubility. When introduced to water at room temperature, it readily dissolves to create a stable colloid.
|
Item |
Index |
||||||
|
Alcoholysis/ (Mol)% |
85.0～87.0 |
||||||
|
Viscosity/ (mPa.s) |
3.4～4.2 |
||||||
|
Volatile content/% ≤ |
5 |
||||||
|
Ash content/% ≤ |
0.4 |
||||||
|
PH |
5～7 |
||||||
|
Purity/% ≥ |
93.5 |
||||||
|
Table 1 Fully hyodrolyzed PVA |
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|
Type |
New Type |
Hydrolysis (mo/mol,%) |
Viscosity (mPa's) |
Volatile (%≤) |
Purity (%≥) |
Ash (%≤) |
pH (Value) |
|
SHUANGXIN05-99 |
098-05 |
98. 20-100.000 |
5.0-6.5 |
4.5 |
94.0 |
0.7 |
5~7 |
|
SHUANGXIN10-99 |
/ |
98.00-99.80 |
8.0-12.0 |
3.5 |
94.0 |
0.7 |
5~7 |
|
SHUANGXIN17-99 |
100-27 |
99.00-100 |
22.0-32.0 |
4.5 |
94.0 |
0.7 |
5~7 |
SHUANGXIN17-99L |
098-27 |
98.00-99.00 |
21.0-32.0 |
4.5 |
94.0 |
0.7 |
5~7 |
|
SHUANGXIN20-99 |
100-35 |
99.00-100 |
47.0-65.0 |
4.5 |
94.0 |
0.7 |
5~7 |
SHUANGXIN26-99 |
l00-70 |
99.00-100 |
80.0-85.0 |
4.5 |
94.0 |
0.7 |
5~7 |
|
Table 2 Partially hyodrolyzed PVA |
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|
Type |
New Type |
Hydrolysis (mo/mol,%) |
Viscosity (mPa's) |
Volatile (%≤) |
Purity (%≥) |
Ash (%≤) |
pH (Value) |
|
SHUANGXIN04-88 |
088-04 |
86.50-89 00 |
3.8-4.8 |
4.5 |
93.5 |
0.6 |
5~7 |
|
SHUANGXIN05-88 |
088-05 |
86.50-89.00 |
4.8-5.8 |
4.5 |
93.5 |
0.6 |
5~7 |
|
SHUANGXIN17-86 |
/ |
85.00-87.00 |
21.0-26.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN17-88 |
088-20 |
86.50-89.00 |
20.5-29.0 |
3.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN17-92 |
092-20 |
89.00-93.00 |
25.0-29.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN20-88 |
088-35 |
86.50-89.00 |
29.0-40.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN20-92 |
092-35 |
89.00-93.00 |
29.0-38.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN24-88 |
088-50 |
86.50-89.00 |
45.0-60.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
SHUANGXIN26-88 |
/ |
86.50-89.00 |
260.0 |
4.5 |
94.0 |
0.5 |
5~7 |
|
Table 3 Special PVA |
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|
Type |
New Type |
Hydrolysis (mo/mol,%) |
Viscosity (mPa's) |
Volatile (%≤) |
Purity (%≥) |
Ash (%≤) |
pH (Value) |
|
SHUANGXIN SX-I |
98, 40-99.00 |
23.0-25.5 |
3.0 |
0.3 |
0.8 |
95.0 |
5~7 |
|
SHUANGXIN SX-II |
98.40-99.00 |
27.0-29.0 |
3.0 |
0.3 |
0.8 |
95.0 |
5~7 |
|
SHUANGXIN SX-lII |
98.40-99.00 |
29.0-31.0 |
3.0 |
0.3 |
0.8 |
95.0 |
5~7 |
|
SHUANGXIN SX-IV |
97.30-98.00 |
24.5-26.5 |
3.0 |
0.3 |
0.8 |
95.0 |
5~7 |
|
SHUANGXIN XW-I |
≥99.72 |
29.5-33.0 |
4.0 |
0.7 |
1.8 |
94.0 |
5~7 |
|
SHUANGXIN XW-II |
≥99.72 |
27.5-29.5 |
4.0 |
0.7 |
1.8 |
94.0 |
5~7 |
| Packing | In 20kg bag. |
|---|---|
| Storage | Close, protect from light, ventilated and dry, cool, do not mix storage. |
| Shipping | Equipped with appropriate varieties and quantities of fire-fighting equipment. |
Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises in anhui province.In 2010,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.
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.
Tel: 0086-25-52397803
E-mail: info@china-pva.net
| Chemical & Physical Properties | Safety Information | Synthetic Route | |
|---|---|---|---|
| Common Names | Poly(vinyl alcohol) | ||
| Structure |
|
||
| CAS No. | 9002-89-5 | Boiling Point(℃) | 23.5±13.0 °C |
| Molecular Weight | 44.053 | Melting Point(℃) | 230-240ºC |
| Appearance | White or cream coloured solid | Vapor Specific Gravity | / |
| HS Code | 3905300000 | Flash Point(℃) | -28.3±12.8 °C |
| Solubility | soluble in hot water | Autoignition Temperature(℃) | / |
| Safety Phrases | S24/25 | ||
| RIDADR | NONH for all modes of transport | ||
| WGK Germany | 1 | ||
| Packaging Group | None | ||
| Hazard Class | None | ||
| SYMPTOMS | PREVENTION | FIRST AID | |
| Inhalation | Harmful to health | Filtered Dust Masks，air ventilator | Oxygen, seek medical attention. |
| Skin | Irritate | Wear anti-poison penetration coveralls | Remove contaminated clothing and rinse with running water. |
| Eyes | Irritate | Wear chemical safety glasses | Lift eyelids and rinse with running water or saline. Seek medical attention. |
| Ingestion | Harmful to health | Smoking is strictly prohibited on the work site. Maintain good hygiene practices. | Drink plenty of warm water and induce vomiting. Seek medical attention. |
| Firstly, each polyvinyl acetate is made by solution polymerisation, and then the resulting polyvinyl acetate is hydrolysed rapidly in methanol, ethanol or a mixture of ethanol and methyl acetate using alkali metal or acid-free as a catalyst. Alcoholysis is carried out to obtain polyvinyl alcohol | |||
Inner Mongolia Shuangxin Environmental Protection Materials Co., Ltd., founded in June 2009, has been committed to integrated operations since its inception. Adhering to the green and sustainable development philosophy, the Company has consistently strengthened technological research and development, continuously extending towards high value-added downstream applications of PVA. It has established a circular economy industrial chain centered on polyvinyl alcohol (PVA), encompassing limestone, calcium carbide, vinyl acetate, polyvinyl alcohol, and downstream products such as specialty polyvinyl alcohol fibers. Today, Shuangxin Environmental Protection has emerged as a significant player in the domestic polyvinyl alcohol and related upstream and downstream industries.
In June 2009, the groundbreaking ceremony for the PVA Circular Economy Industrial Base of Inner Mongolia Shuangxin Environment-Friendly Material Co., Ltd. marked a significant milestone. By 2014, the company's polyvinyl alcohol (PVA) series products had earned the prestigious title of "Inner Mongolia Famous Brand Product." In 2018, the company's annual production capacity of 130,000 tons of polyvinyl alcohol and 30,000 tons of special fibers was recognized as a strategic emerging industry. Furthermore, in 2021, Shuangxin Environmental Protection Company was awarded the title of "13th Five-Year Plan Technological Innovation Demonstration Enterprise" in China's chemical fiber industry. In the same year, the company's polyvinyl alcohol and high-strength, high-modulus polyvinyl alcohol fiber products were honored with the "China Export Brand" status by the China Council for the Promotion of International Trade (CCPIT).
PVA 17-99L(98-27), PVA 26-99(100-70), PVA 17-88(088-20), PVA 20-88(088-35),PVA 24-88(088-50), PVA 20-88(088-35), PVA 17-88(088-20)
In terms of operational scale, Shuangxin Environmental Protection stands as the third-largest polyvinyl alcohol (PVA) producer in China, firmly establishing itself as one of the three major PVA production bases in the country. With regards to market recognition, the company's products are distributed across 29 provinces, autonomous regions, and municipalities in China while also exporting to over 40 countries and regions in Europe, South America, and Southeast Asia. In terms of technical prowess, Shuangxin Environmental Protection has mastered numerous key technologies and production processes in the fields of polyvinyl alcohol, specialty polyvinyl alcohol fibers, and vinyl acetate. These advancements have resulted in cutting-edge domestic technology, with the company leading the industry by obtaining accreditation from the China National Accreditation Service for Conformity Assessment (CNAS) laboratory and the IATF 16949 automotive industry quality management system certification. Furthermore, the company's partial polyvinyl alcohol products have achieved import substitution, making significant contributions to the development of China's polyvinyl alcohol and chemical new material industries.
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