SAP, also known as hydrogel, absorbent polymers, absorbent gels, super soakers, super slurpers, and water gel, is a novel form of macromolecular synthetic water absorption polymer material. Acrylic acids and a cross-linking agent like potassium are commonly employed in agriculture to make Super Absorbent Polymers, which are made through solution or suspension polymerization. The resulting polymer is known as a polyacrylate, and its swelling capacity and gel modulus are highly dependent on the amount and type of cross-linker utilised. Polyacrylates are non-toxic, non-irritating, and non-corrosive in nature, and have been proven to be biodegradable at a rate of 10% to 15% each year. They have a large water absorption capacity and can freely release 95 percent of that when suction pressure is applied by plant roots.
What are super absorbent polymers in agriculture ?
