Nonisothermal crystallization behavior of polylactide/polyethylene glycol/graphene oxide nanosheets composite films | Zendy

Ahmed Jasim | Zendy; Luciano Giorgio | Zendy; Maggiore Sofia | Zendy

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Nonisothermal crystallization behavior of polylactide/polyethylene glycol/graphene oxide nanosheets composite films

Author(s) -

Ahmed Jasim,

Luciano Giorgio,

Maggiore Sofia

Publication year - 2020

Publication title -

polymer composites

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.577

H-Index - 82

eISSN - 1548-0569

pISSN - 0272-8397

DOI - 10.1002/pc.25524

Subject(s) - materials science , crystallization , polyethylene glycol , graphene , activation energy , oxide , composite number , peg ratio , nanocomposite , composite material , chemical engineering , polymer chemistry , nanotechnology , chemistry , finance , economics , engineering , metallurgy

The nonisothermal crystallization (NIC) behavior of solution‐cast polylactide (PLA)/polyethylene glycol (PEG)/graphene oxide (GO) nanosheets composite (PLA/PEG/GO) films was examined at the selected cooling rate. The crystallization temperature ( T c ) of the PLA/PEG matrix improved with increasing the reinforcement of GO (0.5%‐2% w/w) at a constant cooling rate. Various conventional crystallization models, namely, Jeziorny, Ozawa, and Mo were employed to elucidate the NIC kinetics of the PLA/PEG/GO composite films. Results showed that the Mo equation was the best model to describe the NIC of the nanocomposite films. The activation energy ( E ) of crystallization was estimated by Friedman's method, and the values varied from 18 to 186 kJ·mol −1 , however, the values were not systematic with the loading concentration of GO.

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