What is sodium polyacrylate used for?
Sodium polyacrylate is an absorbent polymer that is used as an emulsion stabilizer, a hair fixative, a film former, skin conditioner, and a viscosity agent [1]. You will see them as the gel like crystals in baby diapers, which are makes them absorbent.
How does sodium polyacrylate remove water?
The main part of water can be removed through overnight vacuum drying in an oven after rinsing with a low-boiling point alcohol (e.g., methanol) and then freeze drying on the next day.
What are the properties of sodium polyacrylate?
Sodium polyacrylate (SO-dee-um pol-ee-AK-ruh-late) is an odorless, grainy white powder. Its most impressive property is its ability to absorb large amounts of fluid, up to 800 times its volume of distilled water and lesser amounts of other liquid mixtures.
What is another name for sodium polyacrylate?
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. This super-absorbent polymer (SAP) has the ability to absorb 100 to 1000 times its mass in water.
What is the pH of sodium polyacrylate?
pH 6
Abstract. The swelling kinetics of sodium polyacrylate gels has been studied in media with different pH values. The pH dependence of the degree of equilibrium swelling shows a maximum at pH 6.
What is sodium polyacrylate in skin care?
Sodium polyacrylate is a super-absorbent white powder, which transforms into a gel by locking in water. It keeps the texture of a product soft and supple and conditions the skin.
Is sodium polyacrylate and water a chemical change?
The polymers’ absorption of water is a physical change. Their chemical structure does not change, nor does the water react. When sodium chloride is added to the hydrated polymer, water diffuses out, another example of physical change.
What is the product of sodium polyacrylate and water?
Sodium polyacrylate contains a high number of sodium ions within each particle. Water is highly attracted to sodium ions. So when the water is poured into the beaker containing the sodium polyacrylate, it moves into the individual powder particles and expands the polymer particles to become a solid like gel.
What is the reaction of sodium polyacrylate?
What is sodium polyacrylate equation?
(C3H3NaO2)n
Sodium polyacrylate/Formula
Is sodium polyacrylate a Microplastic?
Sodium polyacrylate is not considered to be a plastic. The family of polymers is a large one and includes materials other than plastics and resins. It is more often categorised as a superabsorbent material, it can absorb many times its own weight of water and hold it in creating a soft stable gel.
Is sodium polyacrylate good for skin?
So functionally, they are strong and flexible, helping to create solid products with a supple texture. It is a large compound unable to penetrate the skin’s barrier and has been proven to be safe for cosmetic use.