Timeline for How do disulphide bonds in hair cause curling?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 16, 2020 at 11:19 | history | edited | CommunityBot |
Commonmark migration
|
|
| Oct 6, 2017 at 21:35 | comment | added | User2341 | As in my previous comment, there is no information regarding the cause of the curling. I went on to speculate as to causes in my previous comment, but I'm not sure that any actual evidence as to the cause or the reason why hair curls. | |
| Oct 6, 2017 at 5:41 | comment | added | another 'Homo sapien' | @user2341 it seems I still have not caught the root of the problem. Apologies, but could you please explain what I have failed to answr here? | |
| Sep 24, 2017 at 8:09 | history | edited | another 'Homo sapien' | CC BY-SA 3.0 |
added 715 characters in body
|
| Sep 18, 2017 at 14:44 | comment | added | User2341 | However, the root cause is still not addressed. There is some cause that is leading to the actual curling. The two factors mentioned previously don't directly cause curling, there must be some residual stress that occurs during the hair growing process. In my mind, this residual stress may occur in several different manners but most likely due to a change in surface chemistry as the hair grows into atmosphere. This change in surface chemistry likely leads to a change in mechanical properties, which in turn induces a mechanical stress and leads to curling. | |
| Sep 18, 2017 at 14:39 | comment | added | User2341 | Yes, this is an excellent summary of essentially what I had read on the internet as well. However, it fails to fully address the root of the question: why exactly does the disulfide style bonding. We have two obvious contributors to curling: 1) high twisting in the alpha-keratin and 2) asymmetry in the cross section. It seems like 1) may change the elastic modulus of the hair, thus making it more susceptible to bending, while 2) changes the cross section and (assuming the cross sectional area is roughly the same) render the hair more vulnerable to curling. | |
| Oct 1, 2016 at 18:47 | vote | accept | User2341 | ||
| Oct 1, 2016 at 18:50 | |||||
| Apr 12, 2016 at 9:38 | history | answered | another 'Homo sapien' | CC BY-SA 3.0 |