Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals
The research of polylactic acid (PLA) packaging materials with high degradation rate is important toward high rate biodegradable packaging materials. The samples (PLA-mango seed residue-clays) were evaluated by degradation analysis (in water and in soil) followed by FTIR, NMR, SEM/EDS and Texturomet...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-05-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2020.1788488 |
| _version_ | 1797680155548712960 |
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| author | Edla Maria Bezerra Lima Renata Nunes Oliveira Antonieta Middea Izabela Miranda de Castro Mariana da Costa Mattos Thiago Torres Matta Neves Lucas Felix da Costa Reiner Neumann Maria Inês Bruno Tavares |
| author_facet | Edla Maria Bezerra Lima Renata Nunes Oliveira Antonieta Middea Izabela Miranda de Castro Mariana da Costa Mattos Thiago Torres Matta Neves Lucas Felix da Costa Reiner Neumann Maria Inês Bruno Tavares |
| author_sort | Edla Maria Bezerra Lima |
| collection | DOAJ |
| description | The research of polylactic acid (PLA) packaging materials with high degradation rate is important toward high rate biodegradable packaging materials. The samples (PLA-mango seed residue-clays) were evaluated by degradation analysis (in water and in soil) followed by FTIR, NMR, SEM/EDS and Texturometer analysis. The samples degradation was more effective in water than in soil, probably due to a coupled effect of water and microbiological degradation. PLA-kernel-tegument samples degraded more than PLA-kernel samples due to the effectiveness action of kernel and tegument together in the samples’ degradation. PLA-Bofe samples degraded less than PLA-kernel-tegument and PLA-kernel-tegument-Bofe samples, PLA-Chocolate clay (Bofe and Chocolate are organo-montmorillonite clays) samples degraded more than PLA-kernel-tegument-Chocolate samples and less than PLA-kernel-tegument samples, probably due to multiples interaction among the Chocolate clay and mango components. The FTIR bands after samples hydrolytic and soil degradation presented low intensity, probably indicating materials degradation. New bands were observed after soil degradation, most likely related to accumulated soil and band displacement, indicative of samples degradation. The NMR relaxation data confirm the degradation process observed form the other techniques, observing the changes in the values of proton relaxation data for all samples, comparing the values after and before been degraded. |
| first_indexed | 2024-03-11T23:25:35Z |
| format | Article |
| id | doaj.art-682772788a3e4f478c484a2ba65fc0d6 |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:25:35Z |
| publishDate | 2022-05-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-682772788a3e4f478c484a2ba65fc0d62023-09-20T12:50:20ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2022-05-011951783179110.1080/15440478.2020.17884881788488Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite MineralsEdla Maria Bezerra Lima0Renata Nunes Oliveira1Antonieta Middea2Izabela Miranda de Castro3Mariana da Costa Mattos4Thiago Torres Matta Neves5Lucas Felix da Costa6Reiner Neumann7Maria Inês Bruno Tavares8Brazilian Agricultural Research CorporationFederal Rural University of Rio De JaneiroFederal University of Rio De JaneiroBrazilian Agricultural Research CorporationBrazilian Agricultural Research CorporationFederal Rural University of Rio De JaneiroFederal Rural University of Rio De JaneiroFederal University of Rio De JaneiroUFRJ, Federal University of Rio De JaneiroThe research of polylactic acid (PLA) packaging materials with high degradation rate is important toward high rate biodegradable packaging materials. The samples (PLA-mango seed residue-clays) were evaluated by degradation analysis (in water and in soil) followed by FTIR, NMR, SEM/EDS and Texturometer analysis. The samples degradation was more effective in water than in soil, probably due to a coupled effect of water and microbiological degradation. PLA-kernel-tegument samples degraded more than PLA-kernel samples due to the effectiveness action of kernel and tegument together in the samples’ degradation. PLA-Bofe samples degraded less than PLA-kernel-tegument and PLA-kernel-tegument-Bofe samples, PLA-Chocolate clay (Bofe and Chocolate are organo-montmorillonite clays) samples degraded more than PLA-kernel-tegument-Chocolate samples and less than PLA-kernel-tegument samples, probably due to multiples interaction among the Chocolate clay and mango components. The FTIR bands after samples hydrolytic and soil degradation presented low intensity, probably indicating materials degradation. New bands were observed after soil degradation, most likely related to accumulated soil and band displacement, indicative of samples degradation. The NMR relaxation data confirm the degradation process observed form the other techniques, observing the changes in the values of proton relaxation data for all samples, comparing the values after and before been degraded.http://dx.doi.org/10.1080/15440478.2020.1788488degradationplamango seedorgano-montmorillonite |
| spellingShingle | Edla Maria Bezerra Lima Renata Nunes Oliveira Antonieta Middea Izabela Miranda de Castro Mariana da Costa Mattos Thiago Torres Matta Neves Lucas Felix da Costa Reiner Neumann Maria Inês Bruno Tavares Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals Journal of Natural Fibers degradation pla mango seed organo-montmorillonite |
| title | Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals |
| title_full | Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals |
| title_fullStr | Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals |
| title_full_unstemmed | Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals |
| title_short | Degradation of PLA Biocomposites Containing Mango Seed and Organo Montmorillonite Minerals |
| title_sort | degradation of pla biocomposites containing mango seed and organo montmorillonite minerals |
| topic | degradation pla mango seed organo-montmorillonite |
| url | http://dx.doi.org/10.1080/15440478.2020.1788488 |
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