Excuse me, why does straightened hair become warped?

Straightened hair will tilt up because it is wet, not dry. The chemical structure of hair makes it particularly susceptible to the influence of hydrogen atoms in the air, and the number of hydrogen atoms is directly related to the environmental humidity. Hair is mainly composed of keratin bundles. Disulfide bonds can be formed between molecules of adjacent keratin bundles, that is, two sulfur atoms are bound by valence bonds. This combination is permanent, which determines the strength of hair and is not affected by air humidity. Adjacent keratin can also be bonded by hydrogen bonds. This bond is fragile and not lasting. Whenever the hair gets wet or dry, this combination will form and break.

When there is a weak force between the molecules of adjacent keratin bundles and the same water molecule, hydrogen bonds are formed, and the two kinds of keratin are indirectly combined. Humid air contains more water molecules than dry air, so in humid weather, hair strands will form more hydrogen bonds. If a large number of hydrogen bonds are formed between keratin in the hair bundle, the hair itself will produce more bending at the molecular level.

For more information about why straight hair is stuck, please visit:/ask/70bd0a1615839029.html? Zd view more content