Description
Sodium polyacrylate powder is a superabsorbent polymer (SAP) capable of absorbing and retaining hundreds of times its own weight in water. This white, fine powder is widely used across industries due to its high swelling capacity, fast absorption rate, and chemical stability.
This product is specially formulated for applications requiring fast water immobilization, such as in spill kits, medical waste absorbents, agriculture, and personal care items like diapers and sanitary pads.
Key Features – Technical Advantages of Sodium Polyacrylate Powder
1. Exceptional Absorption Capacity
Sodium polyacrylate powder can absorb up to 300–800 times its own weight in deionized water, depending on the grade and ionic strength of the surrounding solution. This makes it one of the most effective superabsorbent polymers on the market.
2. Rapid Swelling & Gel Formation
Upon contact with water or aqueous solutions, the powder instantly forms a stable hydrogel, ensuring fast fluid containment. This feature is especially beneficial for emergency spill response and medical waste solidification.
3. Strong Gel Integrity
Unlike some absorbents that break down under pressure, sodium polyacrylate maintains gel structure even under mechanical stress. This property ensures reliable performance in diapers, underpads, and industrial absorbent pads.
4. Customizable Particle Size Distribution
The powder is available in a wide range of mesh sizes (typically 100–850 microns), allowing tailoring to application needs—whether faster absorption or longer water retention is required.
5. Chemically Stable & Inert
It is non-reactive with most chemicals, acids, and bases, making it compatible with diverse formulations and industrial settings.
6. Non-Toxic & Safe for Human Contact
Certified as non-toxic and non-irritant, this polymer is safe for use in personal care products and indirect food contact applications.
7. Eco-Friendly Options Available
Bio-based variants with biodegradable properties can be formulated upon request, supporting sustainability goals in agriculture and hygiene sectors.
Applications – Use Cases Across Industries
1. Industrial Spill Control
Sodium polyacrylate powder is highly efficient in containing and solidifying water-based spills in industrial settings. It is widely used in spill kits, chemical plants, airports, and logistics centers. Once absorbed, the liquid becomes a gel, which can be easily collected and disposed of, reducing contamination risk.
2. Personal Hygiene Products
This superabsorbent is a core ingredient in baby diapers, adult incontinence pads, and feminine hygiene products. Its ability to trap fluids and eliminate odor makes it an essential material for high-performance hygiene items.
3. Agriculture and Soil Moisture Retention
When mixed into soil, sodium polyacrylate forms water reservoirs near the root zone. It significantly reduces irrigation frequency, enhances plant growth in arid regions, and supports drought mitigation strategies. It is especially useful in turf management, potted plants, and reforestation projects.
4. Biomedical and Clinical Waste Management
In hospitals and clinics, it is used to solidify bodily fluids (such as urine, vomit, or blood) in disposable containers and medical waste bags. This enhances hygiene and facilitates safer disposal in compliance with regulations.
5. Packaging and Absorbent Pads
In food and medical packaging, sodium polyacrylate is applied in absorbent pads to maintain product freshness by absorbing excess moisture from meats, fruits, and pharmaceuticals.
6. Cable and Electronics Industry
SAP powder is also used in water-blocking tapes and gels for fiber-optic and power cables. When exposed to moisture, it swells to form a barrier, preventing further water ingress and ensuring equipment longevity.
7. Toilet Waste Solidification in Emergency & Travel Applications
This powder is an effective solution for solidifying toilet waste in portable toilets, emergency kits, and camping supplies. It neutralizes odor and transforms liquid into manageable gel for transport and disposal.
8. Civil Defense and Military Applications
Used in disaster response kits and field sanitation setups, sodium polyacrylate ensures hygienic waste containment and efficient cleanup operations in field hospitals and shelters.
How to Use:
Simply apply the required amount of sodium polyacrylate powder to the liquid surface. The polymer will absorb and solidify the fluid within seconds. For large-scale applications, automated dispensing systems can be used. Store in a sealed container away from moisture to maintain performance.
Technical Specifications:
| Property | Value |
|---|---|
| Appearance | White powder |
| Odor | Odorless |
| Particle Size | 100–850 microns (customizable) |
| pH (1% solution) | 6.0–7.5 |
| Absorption Rate | 300–800 g/g |
| Bulk Density | ~0.7 g/cm³ |
| Solubility | Insoluble in water, forms hydrogel |
Packaging:
Available in:
-
20 kg polyethylene-lined paper bag
-
200 kg fiber drum
(Custom packaging options upon request.)
Storage and Shelf Life:
Store in a cool, dry place. Avoid exposure to direct sunlight and moisture. Reseal the package tightly after each use. Stable under normal storage conditions.
Safety and Certifications:
This product is non-toxic and safe for intended applications. SDS and COA are available upon request. Conforms to RoHS and REACH standards.