Plasticizers
Plasticizers
(OP)
Is it correct that it is only really PVC that is able to absorb plasticizers in high (>20%) quantities?
If not is it possible for Nylon to contain high quantities of plasticizers, specifically phthalates?
I google searched with little success.
If not is it possible for Nylon to contain high quantities of plasticizers, specifically phthalates?
I google searched with little success.





RE: Plasticizers
Every nylon varies but the most common nylons can absorb up to about 9% water and typically absorb about 3% in an average environment. I have never seen phthalates used to plasticize nylon.
Caprolactum can be used to used to plasticizers nylon 6. I think from memory it is used up to about 10%. It sends to migrate to the surface and leave a white scum mark.
Regards
Pat
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RE: Plasticizers
The reason nylon and for that matter PE, PP and other semi-crystalline polymers can't adsorb much is that they are around 40-60% crystalline and the crystals are impermeable and don't take up plasticizer so the amounts are lower for that type of plastic.
Chris DeArmitt PhD FRSC CChem