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Empirical Modelling of the Cold Crystallization of PLA

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Abstract:

Polylactic acid (PLA) has emerged as a promising alternative to conventional petroleum –based plastics due to its biodegradability, renewable sourcing, and lower environmental impact. However, PLA exhibits a slow crystallization kinetics compared to other semi-crystalline polymers, such as polyethylene (PE) or polypropylene (PP), resulting in an amorphous structure after processing. This amorphous morphology can adversely influence the mechanical properties and overall performance of PLA components. The present study investigates the cold crystallization behavior of PLA using Differential Scanning Calorimetry (DSC) with the objective of developing an empirical model capable of describing crystallinity as joint function of holding temperature and time. The resulting model is intended to serve as a practical reference for industrial applications, facilitating improved control of PLA’s microstructure and mechanical performance.

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Periodical:

Solid State Phenomena (Volume 390)

Pages:

31-38

DOI:

https://doi.org/10.4028/p-LwDCV7

Citation:

Cite this paper

Online since:

April 2026

Authors:

Ghinwa Julie El Hajj Sleiman*, Ewen Labalec, Gaël Colomines

Keywords:

Cold Crystallization, Empirical Modelling, PLA

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Creative Commons CC BY 4.0

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* - Corresponding Author

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