Comparison between Bio-PET and PET for food container

Journal of polymer science and engineering Pub Date : 2023-12-14 DOI:10.24294/jpse.v6i1.3040

Kongpop Kaewmahit, Namphueng Ruengrit, Chutimar Deetuam, Pollawat Charoeythornkhajhornchai

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Abstract

The environmental issue of single-use plastic is extremely discussed due to waste accumulation and the consumption of non-renewable resources. This study aims to investigate the properties of bioplastic compared to petroleum-based plastic. Two stages of stretch blow molding were used to fabricate polyethylene terephthalate (PET) and bio-polyethylene terephthalate (Bio-PET) bottles. The shelf life extension of chili sauce paste stored in PET and Bio-PET containers with an oxygen scavenger at 45 ℃ in an accelerated condition was investigated. After twelve weeks, the chili sauce paste stored in the container bottle was observed. PET and Bio-PET bottles without oxygen scavengers were also determined as a control for comparison. The result showed that both PET and Bio-PET bottles with oxygen scavengers could prolong the quality of chili sauce paste similarly, meaning that PET could be replaced by Bio-PET as a chili sauce paste container. Other properties, such as thickness gauge, color, leak test, drop test, and close-open force of the container bottle, were also verified to check the product quality standard.

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食品容器用 Bio-PET 和 PET 的比较

一次性塑料因其废物累积和消耗不可再生资源而引发的环境问题备受关注。本研究旨在调查生物塑料与石油基塑料相比的特性。研究人员采用两段拉伸吹塑法制造聚对苯二甲酸乙二酯（PET）瓶和生物聚对苯二甲酸乙二酯（Bio-PET）瓶。在 45 ℃ 的加速条件下，研究了辣椒酱在 PET 和生物聚对苯二甲酸乙二醇酯（Bio-PET）容器中的保质期延长情况。十二周后，对容器瓶中储存的辣椒酱进行了观察。同时还测定了不含氧清除剂的 PET 瓶和 Bio-PET 瓶，作为对照进行比较。结果表明，含氧清除剂的 PET 瓶和 Bio-PET 瓶都能延长辣椒酱的质量，这意味着 Bio-PET 可以取代 PET 瓶作为辣椒酱的容器。此外，还验证了容器瓶的其他性能，如厚度、颜色、泄漏测试、跌落测试和闭合力，以检验产品质量标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of polymer science and engineering

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