Influence of Various Climatic Conditions on the Structural Changes of Semicrystalline PLA Spun-Bonded Mulching Nonwovens during Outdoor Composting

Michał Puchalski , Piotr Siwek , Nicolay Panayotov , Małgorzata Berova , Stanisława Kowalska , Izabella Krucińska

Abstract

This study analyzed the structural changes of semicrystalline polylactide (PLA) in the form of spun-bonded mulching nonwovens, during outdoor composting. The investigation was carried out at the microstructural, supramolecular and molecular levels using scanning electron microscopy (SEM), wide-angle X-ray diffraction (WAXD) and the viscosity method, respectively. The obtained experimental results revealed how the popular outdoor composting method, realized under two different European climatic conditions (in Poland and in Bulgaria), affects the degradation of PLA nonwoven, designed for agriculture use. The results showed the insignificant influence of the climatic conditions and prepared compost mixtures on the molecular and micromorphological structure of PLA spun-bonded mulching nonwovens, with a visible increase in crystallinity after the first year of composting. Significant changes were observed only after the second year of composting, which indicates the resistance of semicrystalline PLA to degradation in outdoor composting conditions.
Author Michał Puchalski
Michał Puchalski,,
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, Piotr Siwek (FoBaH / DoVaMP)
Piotr Siwek,,
- Department of Vegetable and Medicinal Plants
, Nicolay Panayotov
Nicolay Panayotov,,
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, Małgorzata Berova
Małgorzata Berova,,
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, Stanisława Kowalska
Stanisława Kowalska,,
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, Izabella Krucińska
Izabella Krucińska,,
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Journal seriesPolymers, ISSN 2073-4360, (N/A 100 pkt)
Issue year2019
Vol11
No3
Pages1-12
Publication size in sheets0.55
Article number559
Keywords in Englishbiopolymers and renewable polymers; polylactide (PLA); degradation; composting; nonwovens; crystallization; crystal form; microstructure evolution
ASJC Classification1600 General Chemistry; 2507 Polymers and Plastics
DOIDOI:10.3390/polym11030559
URL https://www.mdpi.com/2073-4360/11/3/559/pdf
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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Influence of Various Climatic Conditions on the Structural Changes of Semicrystalline PLA Spun-Bonded Mulching Nonwovens during Outdoor Composting of 12-11-2019
2,8 MB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.057; WoS Impact Factor: 2017 = 2.935 (2) - 2017=3.509 (5)
Citation count*
Additional fields
FinansowanieThis research was partially funded by the European Regional Development Fund in the frame of a key project entitled “Biodegradable fibrous products” (acronym: Biogratex) No. POIG.01.03.01-00-007/08-09 and part of the work was funded by statuary activity by Lodz University of Technology, Department of Material and Commodity Sciences and Textile Metrology, Poland, No. 14-148-1-2117.
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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