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Abstract
Polyethylene terephthalate (PET) is widely used in bottle production by stretch blow molding processes (SBM processes) due to its cost-effectiveness and low environmental impact. The presented literature review focuses on microcavitation and solid-state post-condensation effects that occur during the deformation of PET in the SBM process. The literature review describes cavitation and microcavitation effects in PET material and solid-state post-condensation of PET on the basis of a three-phase model of the PET microstructure. A three-phase model of PET microstructure (representing the amorphous phase in two ways, depending on the ratio of the trans-to-gauche conformation of the PET macromolecule and the amount of free volume) with a nucleation process, a crystallization process, and the use of positron annihilation lifetime spectroscopy (PALS) to analyze PET microstructure are discussed in detail. The conceptual model developed based on the literature combines solid-state post-condensation with microcavitation via the diffusion of the post-condensation product. This review identifies the shortcomings of the developed conceptual model and presents them with five hypotheses, which will be the basis for further research.
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Authors (3)
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Paweł Wawrzyniak
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Artur Różański
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Materials
no. 17,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Karaszewski W., Wawrzyniak P., Różański A.: Cavitation and Solid-State Post-Condensation of Polyethylene Terephthalate: Literature Review// Materials -,iss. 22 (2024), s.5637-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma17225637
- Sources of funding:
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- Free publication
- Verified by:
- Gdańsk University of Technology
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