VIDEO

Super Absorbing Diapers

Super Absorbing Diapers
The secret, water-absorbing chemical in a nappy is a polymer called sodium polyacrylate. A polymer is simply a long chain of repeating molecules. Super-absorbent polymers expand when they meet water because water is drawn into the molecules of the polymer. They work like giant sponges. Some polymers can soak up as much as 800 times their weight in water.
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