Applicability of newly developed PET/bio-based polyester blends for hot-filling bottle
| Autor: | Jongchul Seo, Guman Tak, Sang Yoon Park, Sarinthip Thanakkasaranee, Youngsoo Lee, Hojun Shin, Kambiz Sadeghi |
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| Rok vydání: | 2021 |
| Předmět: |
Microbiology (medical)
Blow molding business.product_category Materials science Polymers and Plastics Bio based Biomaterials Polyester Crystallinity chemistry.chemical_compound chemistry Phase (matter) Polyethylene terephthalate Bottle Composite material Safety Risk Reliability and Quality Glass transition business Food Science |
| Zdroj: | Food Packaging and Shelf Life. 30:100757 |
| ISSN: | 2214-2894 |
| DOI: | 10.1016/j.fpsl.2021.100757 |
| Popis: | ECOZEN®T110 (EZT), as a bio-based polyester has been used to improve the glass transition temperature (Tg) and thermal shape stability of polyethylene terephthalate (PET). In this study, the applicability of PET/EZT blends for manufacturing hot-filling bottles using an injection stretch blow molding machine in a conventional process was evaluated. A fully miscible blend (single Tg) was observed in 10 % EZT, despite the homogeneous phase being maintained in all other EZT ratios (30 %, 50 %, and 70 %). The addition of EZT led to an increase in the Tg and the transparency of the bottles, and maintains their original shape after the hot-filling tests. High Tg bottles with a low melting point and crystallinity were obtained, circumventing the need for complex equipment and time-consuming processes that are otherwise required for conventional PET bottles. Therefore, the PET/EZT blends can be used as an alternative material to manufacture hot-filling bottles using conventional bottle processing. |
| Databáze: | OpenAIRE |
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