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Wholesale PVA Polyvinyl Alcohol from China Suppliers - High-Quality Factory Manufacturing
Product overview
Polyvinyl alcohol (PVA) is a water-soluble polymer that is usually white in flake, flocculent, or powdered form.
Second, product characteristics
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Excellent water solubility: it can dissolve in water at different temperatures to form a transparent solution.
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Good adhesion: has a strong bonding effect on a variety of materials.
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Excellent film formation: The formed film has high strength and flexibility.
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Solvent resistance: To a certain extent, it can resist the erosion of common solvents.
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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
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Avoid moisture and high temperatures when storing.
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When dissolving, the temperature and stirring speed should be controlled to ensure adequate dissolution and the performance is not affected.
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Select appropriate models and specifications according to different application requirements.
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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)
Q1: What is Polyvinyl alcohol (PVA)?
Polyvinyl alcohol (PVA) is a water-soluble polymer that usually appears in white flake, flocculent, or powdered form, widely valued for its versatile industrial applications.
Q2: What are the primary characteristics of PVA?
PVA features excellent water solubility (dissolving at various temperatures), good adhesion properties on multiple materials, high strength and flexibility in film formation, resistance to common solvents, and friendly biocompatibility.
Q3: In which industries is Polyvinyl alcohol used?
It is widely utilized in the textile industry (warp sizing), paper industry (surface sizing and coating), adhesive formulations, the construction industry (cement additives), and the medical field (drug capsules and ophthalmic medicine).
Q4: How is Polyvinyl alcohol produced?
PVA is generally prepared through the process of alcoholysis of polyvinyl acetate.
Q5: What precautions should be taken when using and storing PVA?
PVA should be stored away from moisture and high temperatures. During dissolution, you must control the temperature and stirring speed to ensure complete dissolution. It is also important to select the appropriate model and viscosity specification suited to your specific industry application.