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China Wholesale PVA Polyvinyl Alcohol Suppliers and Factory for High-Quality Industrial Applications
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 & Performance
Application Areas
- Building adhesive / Putty
- Textile slurry / Fiber
- Adhesive / Polyvinyl acetate
- Papermaking
- 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
Q: What is Polyvinyl alcohol (PVA) and what does it look like?
A: Polyvinyl alcohol (PVA) is a water-soluble polymer. It typically presents as a white substance in flake, flocculent, or powdered form.
Q: What are the primary performance characteristics of PVA?
A: PVA is known for its excellent water solubility across different temperatures, strong adhesion properties, high film-forming strength and flexibility, solvent resistance, and safe biocompatibility.
Q: What industries widely use Polyvinyl alcohol?
A: PVA is extensively utilized in the textile industry (warp sizing and printing/dyeing), paper industry (sizing and coating), adhesive manufacturing, construction (cement additives, mortars, and tile adhesives), and the medical field (capsules and ophthalmic auxiliaries).
Q: How is Polyvinyl alcohol manufactured?
A: PVA is generally prepared through the chemical process of alcoholysis of polyvinyl acetate.
Q: What are the storage and handling precautions for PVA?
A: It should be stored away from moisture and high temperatures. During dissolution, the temperature and stirring speed must be carefully controlled to ensure optimal performance. Additionally, the specific viscosity and alcoholysis model should be selected based on your application needs.