Industrial Grade PVA Binder Powder | Water-Soluble Polymer for Adhesives

Product Specifications

Technical details and manufacturing context for Industrial Grade Polyvinyl Alcohol Binder Powder

Definition

Industrial Grade Polyvinyl Alcohol (PVA) Binder Powder is a synthetic polymer material manufactured through alcoholysis of polyvinyl acetate. It serves as a critical raw material in B2B supply chains for producing water-based adhesives, coatings, and binding agents across multiple industries. The powder dissolves readily in water to form viscous solutions with excellent film-forming, adhesive, and barrier properties. Its industrial utility lies in providing a clean, non-toxic binding alternative to solvent-based systems, making it essential for manufacturers of paper products, textiles, construction materials, and packaging. The product is characterized by a degree of hydrolysis ranging from 88% to 99%, which influences solubility and final properties. Viscosity of a 4% aqueous solution at 20°C typically falls between 5 and 50 mPa·s, affecting application behavior. Ash content is limited to ≤0.5%, and volatile content to ≤5%, ensuring purity and consistency. Particle size (D50) ranges from 100 to 300 μm, impacting dissolution rate. The pH of a 4% solution is between 5 and 7, indicating near-neutrality. Molecular weight varies from 20,000 to 150,000 g/mol, determining mechanical strength. Solubility in water at 20°C is at least 90%, and bulk density is 0.4–0.6 g/cm³. Recommended storage temperature is 5–35°C, with a shelf life of 12–24 months under sealed, dry conditions. These parameters are referenced against GB/T 12010 for verification. Buyers should confirm model-specific values with the manufacturer, as actual specifications may vary by grade and application.

Working Principle

The powder forms hydrogen bonds with water molecules when dissolved, creating a viscous adhesive solution. Upon drying, the polymer chains align and interact to form strong, flexible films. The degree of hydrolysis and molecular weight influence the film's tensile strength and flexibility. The solution's viscosity depends on concentration and temperature, affecting coating thickness and adhesion. The film acts as a barrier to gases and oils, providing protective properties. The adhesive mechanism involves mechanical interlocking and secondary bonding with substrates. The powder's particle size affects dissolution rate, with finer particles dissolving faster. The pH and ash content influence compatibility with other additives. The working principle is based on reversible hydrogen bonding, allowing re-wetting and re-adhesion in some applications.

Common Materials

Polyvinyl acetate, Sodium hydroxide, Methanol

Technical Parameters

Parameter	Typical range	Notes & selection driver
Degree of HydrolysisRequired	88–99 %	Measure of alcoholysis completion affecting solubility and propertiesGB/T 12010
Viscosity (4% solution)Required	5–50 mPa·s	Brookfield viscosity of 4% aqueous solution at 20°CGB/T 12010
Ash ContentRequired	≤0.5 %	Residual inorganic material after combustionGB/T 12010
Volatile ContentRequired	≤5 %	Moisture and volatile matter contentGB/T 12010
Particle Size (D50)	100–300 μm	Median particle diameter affecting dissolution rateGB/T 12010
pH Value (4% solution)	5–7 pH	Acidity/alkalinity of aqueous solutionGB/T 12010
Molecular Weight	20000–150000 g/mol	Determines mechanical properties
Solubility in Water (20°C)	≥90 %	Complete dissolution required for use
Bulk Density	0.4–0.6 g/cm³	Affects packaging and handling
Storage Temperature	5–35 °C	Avoid freezing and high heat
Shelf Life	12–24 months	Under sealed, dry conditions

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Polyvinyl Alcohol Polymer Chain Part
Primary binding and film-forming component

Material: Partially hydrolyzed polyvinyl acetate
Residual Acetate Groups Part
Control solubility and hydrophobicity characteristics

Material: Unhydrolyzed vinyl acetate units
Moisture Content Part
Affects powder flow and storage stability

Material: Absorbed water molecules

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Industrial Grade Polyvinyl Alcohol Binder Powder.

Manufacturers of Industrial Grade Polyvinyl Alcohol Binder Powder

Manufacturer profiles associated with Industrial Grade Polyvinyl Alcohol Binder Powder.

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Frequently Asked Questions

What is the typical degree of hydrolysis for this PVA powder?

The degree of hydrolysis typically ranges from 88% to 99%, as listed in the product parameters. This value affects solubility and final properties. Always confirm the exact grade with the supplier.

How should the powder be stored?

Store in a sealed, dry condition at temperatures between 5°C and 35°C. Avoid freezing and high heat. Under these conditions, the shelf life is 12 to 24 months.

What is the recommended dissolution method?

Dissolve the powder in water with stirring, typically at 20°C. The solubility is at least 90% at this temperature. For faster dissolution, use finer particle sizes or warm water, but follow manufacturer guidelines.

Are there any standards for verification?

The parameters reference GB/T 12010 for several properties. However, this standard is a reference for testing methods, not a certification. Verify compliance with the manufacturer for your specific application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 5 bar (typical mixing/dissolving pressure)
temperature:	5°C to 40°C (optimal dissolution range), storage: -10°C to 30°C
dissolution time:	15-60 minutes depending on temperature and agitation
slurry concentration:	5% to 20% w/v (typical working range), up to 30% for high-viscosity applications

Industrial Grade Polyvinyl Alcohol Binder Powder

Product Specifications

Industry Taxonomies & Aliases

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards