New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency
The influence of storage conditions on the mechanical recycling of pre-consumer waste (PRE-CW) from the manufacture of multilayer packaging films starting from starch compounds using a renewable-based polymer with PCL and PBAT, which are biodegradable conventional-based polyesters, was studied. It w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/4/1503 |
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| author | Doina Dimonie Mihail Dragne Bogdan Trica Cristian-Andi Nicolae Monica Raduly Sanda Doncea Magda Ladaniuc Alina Mustatea Florentina Miu Laurentiu Soare Tudor Georgescu |
| author_facet | Doina Dimonie Mihail Dragne Bogdan Trica Cristian-Andi Nicolae Monica Raduly Sanda Doncea Magda Ladaniuc Alina Mustatea Florentina Miu Laurentiu Soare Tudor Georgescu |
| author_sort | Doina Dimonie |
| collection | DOAJ |
| description | The influence of storage conditions on the mechanical recycling of pre-consumer waste (PRE-CW) from the manufacture of multilayer packaging films starting from starch compounds using a renewable-based polymer with PCL and PBAT, which are biodegradable conventional-based polyesters, was studied. It was found that, unlike materials based on conventional-origin polymers that accumulate in the environment for hundreds of years, the studied compounds degraded, even in the solid state, duringstorage in unventilated spaces and during the rainy hot summers with alternatingheat and rain. The degradation of the mechanically recycled compounds obtained from PRE-CW stored in such conditions was highlighted by the comparative analysis with the primary compounds, which proved the following: specific FTIR spectra changes; 2–3-times higher melt fluidity than for primary compounds; melting in successive processes over the entire positive temperatures range, up to 115 °C, such as in cases of compositional de-mixing of incompatible blends, faced to a single melting endotherm with a maximum at around 120 °C for the primar thermal degradation with the movement of the main destruction stages towards higher temperatures; a high quantity residue at 750 °C in air; dispersed mechanical resistance properties y compounds; crystallization at temperatures 10 °C–15 °C higher. The elimination of storage before the mechanical recycling of the pre-consumer waste from this type of polymeric compound fabrication is a way to increase the mechanical recycling efficiency while obtaining new materials with functional properties required by the applications. |
| first_indexed | 2024-03-11T08:29:43Z |
| format | Article |
| id | doaj.art-bc227acf44ae4657b5d401e03341fbe6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T08:29:43Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-bc227acf44ae4657b5d401e03341fbe62023-11-16T21:50:45ZengMDPI AGMaterials1996-19442023-02-01164150310.3390/ma16041503New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling EfficiencyDoina Dimonie0Mihail Dragne1Bogdan Trica2Cristian-Andi Nicolae3Monica Raduly4Sanda Doncea5Magda Ladaniuc6Alina Mustatea7Florentina Miu8Laurentiu Soare9Tudor Georgescu10Chemical Engineering and Biotechnologies Faculty’ Doctoral School, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaChemical Engineering and Biotechnologies Faculty’ Doctoral School, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei Street, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei Street, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei Street, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei Street, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei Street, 060021 Bucharest, RomaniaChemical Engineering and Biotechnologies Faculty’ Doctoral School, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, RomaniaPROMATERIS SA, Bucharest-Targoviste Street, No.1, 070000 Buftea, RomaniaPROMATERIS SA, Bucharest-Targoviste Street, No.1, 070000 Buftea, RomaniaPROMATERIS SA, Bucharest-Targoviste Street, No.1, 070000 Buftea, RomaniaThe influence of storage conditions on the mechanical recycling of pre-consumer waste (PRE-CW) from the manufacture of multilayer packaging films starting from starch compounds using a renewable-based polymer with PCL and PBAT, which are biodegradable conventional-based polyesters, was studied. It was found that, unlike materials based on conventional-origin polymers that accumulate in the environment for hundreds of years, the studied compounds degraded, even in the solid state, duringstorage in unventilated spaces and during the rainy hot summers with alternatingheat and rain. The degradation of the mechanically recycled compounds obtained from PRE-CW stored in such conditions was highlighted by the comparative analysis with the primary compounds, which proved the following: specific FTIR spectra changes; 2–3-times higher melt fluidity than for primary compounds; melting in successive processes over the entire positive temperatures range, up to 115 °C, such as in cases of compositional de-mixing of incompatible blends, faced to a single melting endotherm with a maximum at around 120 °C for the primar thermal degradation with the movement of the main destruction stages towards higher temperatures; a high quantity residue at 750 °C in air; dispersed mechanical resistance properties y compounds; crystallization at temperatures 10 °C–15 °C higher. The elimination of storage before the mechanical recycling of the pre-consumer waste from this type of polymeric compound fabrication is a way to increase the mechanical recycling efficiency while obtaining new materials with functional properties required by the applications.https://www.mdpi.com/1996-1944/16/4/1503starchPCLPBATenzymatic degradationstoragecompositional de-mixing |
| spellingShingle | Doina Dimonie Mihail Dragne Bogdan Trica Cristian-Andi Nicolae Monica Raduly Sanda Doncea Magda Ladaniuc Alina Mustatea Florentina Miu Laurentiu Soare Tudor Georgescu New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency Materials starch PCL PBAT enzymatic degradation storage compositional de-mixing |
| title | New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency |
| title_full | New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency |
| title_fullStr | New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency |
| title_full_unstemmed | New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency |
| title_short | New Biodegradable Materials for Re-Thought Packaging from Pre-Consumer Wastes by Controlling the Storage Time as Method to Increase the Mechanical Recycling Efficiency |
| title_sort | new biodegradable materials for re thought packaging from pre consumer wastes by controlling the storage time as method to increase the mechanical recycling efficiency |
| topic | starch PCL PBAT enzymatic degradation storage compositional de-mixing |
| url | https://www.mdpi.com/1996-1944/16/4/1503 |
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