What Is an Impervious Surface?

Wetting , that is, wetting . Infiltration or non-infiltration are two mutually exclusive physical phenomena. If the liquid infiltrates the solid and there are capillaries inside the solid, the liquid will penetrate into the solid due to capillary action.

Infiltration finger

Infiltration can be roughly divided into two types: no chemical reaction infiltration and chemical reaction infiltration.

Sometimes in life, we need to take advantage of the phenomenon of infiltration. For example, writing with a pen takes advantage of the fact that writing paper can be wet with ink.

Sometimes in life, we need to avoid infiltration. For example with

• Molecular force

• Capillary phenomenon

• solid

• liquid

• Contact angle