Nylon 66 and Thermo-Oxidation
Nylon 66 and Thermo-Oxidation
(OP)
Hello,
I am currently having a problem with Nylon 66 in regards to it changing from a light grey/green to a brown. I was thinking this is due to the fact that I am raising it to 60C for an hour, which is in it's range for Tg. Along with exposing it to a 43C for 7 hours. Could exposing it to these temperatures increase rates of thermo-oxidation. Could thermo-oxidation be to blame for the change in color?
If I remember correctly Nylon's are susceptible to thermo-oxidation due to their carbonyl groups. Is there anyway to prevent this discoloration besides keeping it a room temperature?
I am currently having a problem with Nylon 66 in regards to it changing from a light grey/green to a brown. I was thinking this is due to the fact that I am raising it to 60C for an hour, which is in it's range for Tg. Along with exposing it to a 43C for 7 hours. Could exposing it to these temperatures increase rates of thermo-oxidation. Could thermo-oxidation be to blame for the change in color?
If I remember correctly Nylon's are susceptible to thermo-oxidation due to their carbonyl groups. Is there anyway to prevent this discoloration besides keeping it a room temperature?





RE: Nylon 66 and Thermo-Oxidation
Chris DeArmitt PhD
President - Phantom Plastics LLC
Consulting, ideas and training on plastic materials
www.phantomplastics.com
RE: Nylon 66 and Thermo-Oxidation
RE: Nylon 66 and Thermo-Oxidation
They can extract all the additives and identify them.
Chris DeArmitt PhD
President - Phantom Plastics LLC
Consulting, ideas and training on plastic materials
www.phantomplastics.com
RE: Nylon 66 and Thermo-Oxidation
http://onlinelibrary.wiley.com/doi/10.1002/pola.19...
http://www.angelfire.com/pa5/parag/CHAPTER5/CHAPTE...
http://sanangelo.tamu.edu/files/2011/11/R103-Compo...
Rick Fischer
Principal Engineer
Argonne National Laboratory