Study of the Degradation of Biobased Plastic after Stress Tests in Water

Research on compostable bioplastics has recently obtained performances comparable to traditional plastics, like water vapor permeability, sealability, and UV transmission. Therefore, it is crucial to create new tools that help the developers of new polymeric composites study them quickly and cost-ef...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Gina Ambrosio, Guido Faglia, Stefano Tagliabue, Camilla Baratto
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Raman spectroscopy food packaging water treatment bioplastic Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/9b69c9ce6eb744e18d9e6431ac50d48b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9b69c9ce6eb744e18d9e6431ac50d48b
record_format	dspace
spelling	oai:doaj.org-article:9b69c9ce6eb744e18d9e6431ac50d48b2021-11-25T17:16:05ZStudy of the Degradation of Biobased Plastic after Stress Tests in Water10.3390/coatings111113302079-6412https://doaj.org/article/9b69c9ce6eb744e18d9e6431ac50d48b2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1330https://doaj.org/toc/2079-6412Research on compostable bioplastics has recently obtained performances comparable to traditional plastics, like water vapor permeability, sealability, and UV transmission. Therefore, it is crucial to create new tools that help the developers of new polymeric composites study them quickly and cost-effectively. In this work, Raman spectroscopy (RS) was proposed as a versatile tool to investigate the degradation of biobased plastics after a stress test in water: this approach is a novelty for food packaging. Treatments at room temperature (RT) and 80 °C were selected, considering that these biopolymers can be used to packaging ready meals. The investigation was carried out on single-layer sheets of poly-lactic acid (PLA), cellulose ester (CE), poly-butylene succinate (PBS), poly-butylene adipate-co-terephthalate (PBAT), and a new composite material obtained by coupling CE and PBS (BB951) and PLA and CE (BB961). The vibrational modes of the water-treated materials at RT and 80 °C were compared to the Raman spectra of the pristine bioplastic, and the morphologies of the polymers were analyzed by scanning electron microscopy (SEM) and optical microscopy. Composite sheets were the plastics which were mostly affected by the 80 °C treatment in water, through changes in morphology (wrinkling with alternate white and transparent zones), as was especially the case for BB951. The Raman spectra acquired in different zones showed that the vibrations of BB951 were generally maintained in transparent zones but reduced or lacking in white zones. At the same time, the single-layer materials were almost unchanged. For BB961, the Raman vibrations were only slightly modified, in agreement with the visual inspection. The results suggest that RS detects the specific chemical bond that was modified, helping us understand the degradation process of biobased plastics after water treatment.Gina AmbrosioGuido FagliaStefano TagliabueCamilla BarattoMDPI AGarticleRaman spectroscopyfood packagingwater treatmentbioplasticEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1330, p 1330 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Raman spectroscopy food packaging water treatment bioplastic Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Raman spectroscopy food packaging water treatment bioplastic Engineering (General). Civil engineering (General) TA1-2040 Gina Ambrosio Guido Faglia Stefano Tagliabue Camilla Baratto Study of the Degradation of Biobased Plastic after Stress Tests in Water
description	Research on compostable bioplastics has recently obtained performances comparable to traditional plastics, like water vapor permeability, sealability, and UV transmission. Therefore, it is crucial to create new tools that help the developers of new polymeric composites study them quickly and cost-effectively. In this work, Raman spectroscopy (RS) was proposed as a versatile tool to investigate the degradation of biobased plastics after a stress test in water: this approach is a novelty for food packaging. Treatments at room temperature (RT) and 80 °C were selected, considering that these biopolymers can be used to packaging ready meals. The investigation was carried out on single-layer sheets of poly-lactic acid (PLA), cellulose ester (CE), poly-butylene succinate (PBS), poly-butylene adipate-co-terephthalate (PBAT), and a new composite material obtained by coupling CE and PBS (BB951) and PLA and CE (BB961). The vibrational modes of the water-treated materials at RT and 80 °C were compared to the Raman spectra of the pristine bioplastic, and the morphologies of the polymers were analyzed by scanning electron microscopy (SEM) and optical microscopy. Composite sheets were the plastics which were mostly affected by the 80 °C treatment in water, through changes in morphology (wrinkling with alternate white and transparent zones), as was especially the case for BB951. The Raman spectra acquired in different zones showed that the vibrations of BB951 were generally maintained in transparent zones but reduced or lacking in white zones. At the same time, the single-layer materials were almost unchanged. For BB961, the Raman vibrations were only slightly modified, in agreement with the visual inspection. The results suggest that RS detects the specific chemical bond that was modified, helping us understand the degradation process of biobased plastics after water treatment.
format	article
author	Gina Ambrosio Guido Faglia Stefano Tagliabue Camilla Baratto
author_facet	Gina Ambrosio Guido Faglia Stefano Tagliabue Camilla Baratto
author_sort	Gina Ambrosio
title	Study of the Degradation of Biobased Plastic after Stress Tests in Water
title_short	Study of the Degradation of Biobased Plastic after Stress Tests in Water
title_full	Study of the Degradation of Biobased Plastic after Stress Tests in Water
title_fullStr	Study of the Degradation of Biobased Plastic after Stress Tests in Water
title_full_unstemmed	Study of the Degradation of Biobased Plastic after Stress Tests in Water
title_sort	study of the degradation of biobased plastic after stress tests in water
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9b69c9ce6eb744e18d9e6431ac50d48b
work_keys_str_mv	AT ginaambrosio studyofthedegradationofbiobasedplasticafterstresstestsinwater AT guidofaglia studyofthedegradationofbiobasedplasticafterstresstestsinwater AT stefanotagliabue studyofthedegradationofbiobasedplasticafterstresstestsinwater AT camillabaratto studyofthedegradationofbiobasedplasticafterstresstestsinwater
_version_	1718412548405985280

Study of the Degradation of Biobased Plastic after Stress Tests in Water

Ejemplares similares