How does a soap bubble develop?

The molecules of the soap, called surfactants, push themselves to the interface between air and water. These surfactants reduce the surface tension of the water and make the surface of this mixture elastic and expandable. Now you can blow air into the soap-water mixture without immediately ripping the surface. This is how the fascinating soap bubbles are created. At the same time, the soap molecules prevent the soap bubble from dying too quickly due to dehydration.

In water, the soap molecules decompose into electrically positive and electrically negative particles. The positive particles are distributed inside the soap bubble skin while the negative particles sit in a thin layer on the surface of our soap bubble skin. The negative particles on the surface consist of a hydrophilic end that loves the water and a hydrophobic part that loves the compound with fat. The water-loving hydrophilic part protrudes into the water, while the fat-loving hydrophobic end looks into the air. This creates a protective layer of soap molecules that slows down the evaporation of water and prolongs the life of our bubbles.