Product Description
PVA resin is a kind of high polymer, it is odorless, non-toxic, water-soluble, excellent film forming
CAS Number: 9002-89-5
EINECS: 209-183-3
Appearance: White powder; white granular; Floc
Chemical Formula: [CH2CHOH]n ; or -[CH2CHOH]n-[CH2CHOOCCH3]m-
Synonyms: Polyvinyl alcohol; PVA resin; PVOH
Flash point: 79ºC
Specific gravity: 1.19-1.
Product Parameters
| Old Product Name |
New Product Name |
Purity(Internal Controlling)% |
Alcoholysis Degree(mol%) |
Viscocity(cps) |
Vdaf(Wt%) |
Ash(Wt%) |
| 17-99 |
100-30 |
≥91.5 |
98.0-100.0 |
26.0-35.0 |
≤7.0 |
≤0.7 |
Product Application
PVA1799 is a common polyvinyl alcohol model. Here is its introduction:
Naming rules
The "17" in PVA1799 means that the degree of polymerization is about 1700, and the "99" means that the degree of alcoholysis is 99%.
Physical and chemical properties
- Appearance: Usually white flake, flocculent or powdery solid.
- Solubility: It needs to be dissolved in hot water above 90°C. Its aqueous solution is easy to gel at low temperatures. For example, below 15 degrees, it will become jelly after a long static time, but it can restore fluidity after heating.
- Viscosity: The viscosity value is between 22-31.
Performance characteristics
- Good adhesion: It has good adhesion properties and can form a strong and water-resistant film, so that it can firmly bond different materials in a variety of applications.
- Oil and alkali resistance: It has good tolerance to oils and alkaline substances, and can still maintain good performance in some specific environments, which broadens its application range.
Main uses
- Textile sizing agent: As a sizing agent in the textile industry, it can form a sizing film on the surface of the yarn to prevent the yarn from unraveling and breaking, and improve the efficiency of the loom and the quality of the grey cloth.
- Adhesive: It can be used to prepare various adhesives, such as building glue, paper tube glue, etc., which are used in building decoration, paper processing and other fields.
- Papermaking cotton wool: In the papermaking process, it can be used as a raw material for cotton wool to improve the strength and toughness of paper.
- PVB water-soluble fiber: It is one of the important raw materials for the production of PVB water-soluble fiber. The fiber is widely used in the automotive glass manufacturing industry and the architectural glass manufacturing industry.
Product Package
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