Hello
PET fiber was produced by melt spinning system and then DSC result of them showed a broad crystallization peak just before melt temperature as shown in below figure. this is unusual for PET fibers. I would be appreciate if you could help me.
Thank you for your reply. But in non article I didn't see two crystalization peak for PET and this is unusual . I don't know what can causes this phenomenon.
Mrm, the first heating scan is full of bizarre artifacts related to the thermo-mechanical history. Just look at the cooling scan and second heating.
Have a look at this old topic.
https://www.researchgate.net/post/Crystallization_of_Polylactic_acid?_ec=topicPostOverviewFollowedQuestions&_sg=LyWsQjHBg1s2Fn9L3dQf_3r0tUIbhNZ6Vhs4t7gLGtKYIMe1GQHjsgC3k9SoqoC_on1kSh6_SUliHsPj.4KSRb18Ni6J-0Ys9W_vqeALp-fuAyql02JgzoHg8tGXxllwTMpV1FiIAYgpD1xmQBhCpVsAM_7AtEigVUeyBqr0
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