What Makes Diapers Absorb Liquid ?

If you cut open a diaper, you will find a powder called sodium polyacrylate molecule, it is also called SAP or super absorbent polymer. This powder was created y the scientists from the Dow Chemical Company.

When that Powder exposed to liquid, the liquid is drawn inside the sodium polyacrylate molecule through osmosis. This mixture of water and powder turn into a gel that kinds looks like sponge.