Sodium Polyacrylate Ceramic Dispersant
CAS Number: 9003-04-7
Sodium polyacrylate (NaPA) is a high-performance anionic dispersant for aqueous ceramic suspensions, particularly alumina, silica, and mixed oxide systems. It provides steric and electrostatic stabilization through polymer chain adsorption onto ceramic particle surfaces, enabling high-solids slurries (>70 wt%) with low viscosity. Widely used in MLCC, technical ceramics, and advanced structural ceramics.
Technical Specifications
| appearance | Colorless to light yellow aqueous solution |
| purity (%) | ≥97 |
| pH (as-supplied) | 7–9 |
| solid content (%) | 35–45 |
| molecular weight (g/mol) | 1200–10000 |
Applications
- Dispersant for alumina and zirconia technical ceramic slips
- Dispersant in MLCC tape casting slurries
- Deflocculant for high-purity alumina slips
- Dispersant in waterborne ceramic coating formulations
- Viscosity reducer in ceramic glaze suspensions
Key Features
- Electrosteric stabilization allows extremely high solids loading
- Low dosage requirement (0.3–1.5 wt% on solids) reduces cost
- Compatible with most oxide and non-oxide ceramic powders
- Adjustable molecular weight grades for different particle size distributions
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CAS Number
9003-04-7
Category
Ceramic / Glass AdditivesAvailability
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