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Wholesale PVA Polyvinyl Alcohol from China Suppliers - High-Quality PVA Factory Products
Product Overview
Polyvinyl alcohol (PVA) is a water-soluble polymer that is usually white in flake, flocculent, or powdered form.
Product Characteristics
Excellent water solubility
It can dissolve in water at different temperatures to form a transparent solution.
Good adhesion
Has a strong bonding effect on a variety of materials.
Excellent film formation
The formed film has high strength and flexibility.
Solvent resistance
To a certain extent, it can resist the erosion of common solvents.
Biocompatibility
Relatively non-toxic and friendly to the human body and the environment.
Product Use
Textile Industry
Used as warp sizing material to improve the strength and wear resistance of yarns.
Printing and dyeing auxiliaries, help dye adhesion and uniform distribution.
Paper Industry
Paper surface sizing agent to increase the strength and water resistance of paper.
Pigment coating adhesive to improve the properties of coated paper.
Adhesive Field
Adhesive for wood, paper, fiber and other materials.
Construction Industry
Cement additives to improve the properties of cement.
Medical Field
The raw material of drug capsule, the auxiliary material of ophthalmic medicine.
Production Process
It is generally prepared by alcoholysis of polyvinyl acetate.
Market Prospects
With the increasing demand for high-performance materials in various industries, the market prospects for PVA are broad. Driven by the upgrading of traditional industries such as textiles and papermaking, as well as the development of emerging fields such as biomedicine and electronic materials, its market demand is expected to continue to grow.
Use Precautions
Avoid moisture and high temperatures when storing.
When dissolving, the temperature and stirring speed should be controlled to ensure adequate dissolution and the performance is not affected.
Select appropriate models and specifications according to different application requirements.
For example, in the textile industry, PVA with specific viscosity and alcoholysis degree needs to be selected according to the material and process requirements of the yarn; In the application of adhesives, the formulation and use of PVA should be adjusted according to the nature of the adhesive.
To sum up, Polyvinyl alcohol plays an important role in many fields with its unique properties, providing strong support for the development of related industries.
Technical Indicators
| Model | HS1788SA1 | HS2488SA1 |
|---|---|---|
| Appearance | White powder | |
| Alcoholic degree/% | 87-89 | |
| Residual moisture content/% | ≤5.0 | |
| Burning residue /% | ≤0.5 | |
| PH（20%） | 5 - 7 | |
| Viscosity (4%)/MPa·S | 20.5 - 24.5 | 45.5 - 55.5 |
Application Areas
Building adhesive
Textile slurry
Adhesive
Fiber
Papermaking
Polyvinyl acetate
Putty
Clean formaldehyde mud
Exterior wall texture mortar
Gypsum mortar
EPS gypsum line
Pointing agent
Bonding mortar
Ceramic tile adhesive
Application Performance
Dispersibility and solubility, anti-clumping
Improves bonding strength
Excellent dissolution rate
Film-forming properties
Thermal stability
Good chemical resistance
Details Pictures
Frequently Asked Questions (FAQ)
Q What is Polyvinyl Alcohol (PVA)?
Polyvinyl alcohol (PVA) is a water-soluble polymer that is usually white in flake, flocculent, or powdered form. It is widely used in textiles, papermaking, adhesives, construction, and medical applications.
Q What are the key properties of PVA?
PVA is characterized by its excellent water solubility, strong adhesion, superior film-forming capability, solvent resistance, and good biocompatibility, making it highly versatile and eco-friendly.
Q How is PVA used in the construction industry?
In construction, PVA is used as a cement additive to improve bonding strength, water retention, and thermal stability in products like tile adhesives, bonding mortars, putty, and gypsum mortars.
Q What precautions should be taken when dissolving PVA?
During dissolution, it is crucial to control the temperature and stirring speed to ensure complete dissolution without affecting the overall performance of the solution.
Q How should PVA be stored to maintain its quality?
PVA should be stored in a cool, dry place, ensuring it is kept away from moisture and high temperatures to prevent clumping and maintain its original chemical properties.