Sodium polyacrylate, also known as waterlock, is a sodium salt of polyacrylic acid with the chemical formula [−CH2−CH(CO2Na)−]n and has broad applications in consumer products.[1] This super-absorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water. Sodium polyacrylate is an anionic polyelectrolyte with negatively charged carboxylic groups in the main chain.Sodium polyacrylate is a chemical polymer made up of chains of acrylate compounds. It contains sodium, which gives it the ability to absorb large amounts of water. Sodium polyacrylate is also classified as an anionic polyelectrolyte.
Sodium polyacrylate, also known as waterlock, is a sodium salt of polyacrylic acid and has broad applications in consumer products. This super-absorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water. It is widely used in industrial and sanitary fields. For example: cable water blocking powder, ice pack, flood control bag, artificial snow, oil drilling fluid, sanitary napkins, diapers, etc. With its awesome properties of liquid-absorption and locking it has finds very useful application in products prone to moisture like: diapers, sanitary napkins, nursing pads and pet pads.
Technical Data Sheet |
Dry matter | ≥94% |
Apparent density | 0.85 |
Specific weight | 1.10g/cm3 |
PH | 6.0-7.5 |
Appearance of the product | Dry =white powder |
Hydrated =transparent gel |
Particle size | Powders, micro granules, granules |
Maximum absorption | ≥350 in deionized water |
Available water at PF4. 2(near-permanent wilting point) | 95% |
Toxicity in soil | None under normal conditions of use |
Packaging | 20kg per kraft bag or up to customer 's Packaging request |
storage temperature | 0°-35°C |
Shelf life of the dry product | 2 years |
Application of Super Absorbent Polymer
1 Hygiene products: sanitary napkin, diapers, medical mattress, absorbent paper, slow-release drug, paste, water bag, etc.
2 agriculture and garden: soil water retention, seed coating, seed dressing.
3 industry. anti-water expansion rubber, water-absorbing and anti-fouling paint, anti-condensation coating, anti-static coating.oil field plugging and oil-water separation, optical cable. Use of duct tape and cable paste, concrete curing and so on.
4 preservatives for water absorbent, fruits and vegetables for the food industry.

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Hebei Hangao Chemical Co., Ltd. is mainly committed to the research and development of a variety of more suitable for different industries and user applications of professional high-end products, Hebei Hangao Chemical Co., Ltd. based on the application of new products, new technology, new process, new materials research and development, in titanium dioxide industry unique, The company has formed several major backbone products such as titanium dioxide for paper making, titanium dioxide for chemical fiber, titanium dioxide for denitrification catalyst, and a series of high-end products such as universal rutile titanium dioxide, universal anatase titanium dioxide, nano photocatalytic titanium dioxide, electronic grade titanium dioxide, etc.
