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%) |
| 17-88 |
088-20 |
≥91.5 |
86.0-90.0 |
20.0-26.0 |
≤7.0 |
≤0.7 |
Product Application
PVA1788 Introduction:
Basic Information
- Naming Meaning: "17" means the average degree of polymerization is about 1700, and "88" means the alcoholysis degree is about 88%.
- Appearance: white powder, flake or flocculent solid.
Physical Properties
- Solubility: easily soluble in water at room temperature, its aqueous solution has good storage stability, the viscosity will gradually increase with the prolonged storage time at room temperature, it will turn into gel at low temperature, and it can be restored to solution state after heating and stirring.
- Thermal stability: no change below 140ºC, long-term heating above 160ºC will gradually color, dehydrate and etherify, and decompose above 220ºC.
- Film-forming property: easy to form a film, the formed film is colorless and transparent, with good mechanical strength, smooth and non-sticky surface, good solubility resistance, good light transmittance and moisture permeability, no charge, no dust absorption, and good printing properties.
Chemical Properties
- Stability: Almost unaffected by weak acids, weak bases or organic solvents, with high oil resistance, but it will react with substances such as boric acid.
- Reactivity: It has the typical chemical properties of long-chain polyols, can undergo esterification, etherification,and other reactions, can be mixed with a variety of substances and has good stability.
Applications
- Construction industry: used to manufacture 107 glue, interior and exterior wall coatings, dry mortar, putty powder, adhesives, etc.
- Chemical industry: used as a polymer emulsifier, dispersant and raw material for the production of polyvinyl alcohol butyral resin.
- Papermaking industry: can be used as paper adhesive, emery paper, etc.
- Textile industry: It is the raw material for warp yarn slurry, fabric finishing agent, and vinylon fiber.
- Other fields: In agriculture, it can be used as soil conditioner, pesticide adhesion enhancer and polyvinyl alcohol film; it can also be used for oil field cementing additives, ceramics, alumina granulation, ferrite magnets, daily cosmetics, pigments, pharmaceutical excipients and high-frequency quenching agents, etc.
Product Package
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