Hi everyone,
Does somebody know which kind of in house test can be done for rPET in food packaging environment? For virgin materials, I accept CoC but rPET is easier to be tampered. Could be density a good idea?
Thanks,
Maria
Posted 13 October 2021 - 05:11 PM
The carboxylic end group (COOH) will increase for each recycling step
Usually reported as the equivalent concentration/ton of polymer
It is done on 100% virgin resin and increases
The following resources might also help:
https://www.scielo.b...mat=pdf&lang=en
https://plasticsrecy...ations-test.pdf
https://onlinelibrar...0.1002/pts.2490
https://cpb-us-w2.wp...Thomas_Doni.pdf
Edited by jdpaul, 13 October 2021 - 05:22 PM.
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