Mechanochemical Functionalization of Oxidized Carbon Black with PLA
The functionalization of carbon black (CB) represents a promising strategy to enhance its compatibility with polymers while addressing sustainability concerns. In this study, a solvent-free mechanochemical approach (ball milling) is proposed for the functionalization of oxidized carbon black (oCB) w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/1/94 |
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| author | Aida Kiani Mattia Naddeo Federica Santulli Valentina Volpe Mina Mazzeo Maria Rosaria Acocella |
| author_facet | Aida Kiani Mattia Naddeo Federica Santulli Valentina Volpe Mina Mazzeo Maria Rosaria Acocella |
| author_sort | Aida Kiani |
| collection | DOAJ |
| description | The functionalization of carbon black (CB) represents a promising strategy to enhance its compatibility with polymers while addressing sustainability concerns. In this study, a solvent-free mechanochemical approach (ball milling) is proposed for the functionalization of oxidized carbon black (oCB) with post-consumed polylactic acid (PLA), overcoming the environmental drawbacks of conventional methods that mostly rely on toxic solvents and catalysts. The functionalized carbon black (f-CB) was characterized by Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), and thermogravimetric analysis (TGA) to confirm the successful modification. At the same time, the influence of f-CB as a nanofiller of residual PLA waste was evaluated using differential scanning calorimetry (DSC) and gel permeation chromatography (GPC), demonstrating its stabilization effect during melt extrusion by preserving the molecular weight of the starting polymer. On the other hand, the dynamic mechanical analysis (DMA) revealed that the addition of f-CB did not negatively affect the mechanical properties of the resulting composite. In conclusion, mechanochemistry was used as a sustainable and unique strategy for the upcycling of waste PLA into a PLA-based composite stabilized by CB functionalized with the waste PLA itself. |
| format | Article |
| id | doaj-art-96707fe215854723a88b3aa209385744 |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-96707fe215854723a88b3aa2093857442025-01-10T13:18:51ZengMDPI AGMolecules1420-30492024-12-013019410.3390/molecules30010094Mechanochemical Functionalization of Oxidized Carbon Black with PLAAida Kiani0Mattia Naddeo1Federica Santulli2Valentina Volpe3Mina Mazzeo4Maria Rosaria Acocella5Dipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyDipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyDipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyDipartimento di Ingegneria Industriale, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyDipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyDipartimento di Chimica e Biologia “A. Zambelli”, Università degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, SA, ItalyThe functionalization of carbon black (CB) represents a promising strategy to enhance its compatibility with polymers while addressing sustainability concerns. In this study, a solvent-free mechanochemical approach (ball milling) is proposed for the functionalization of oxidized carbon black (oCB) with post-consumed polylactic acid (PLA), overcoming the environmental drawbacks of conventional methods that mostly rely on toxic solvents and catalysts. The functionalized carbon black (f-CB) was characterized by Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), and thermogravimetric analysis (TGA) to confirm the successful modification. At the same time, the influence of f-CB as a nanofiller of residual PLA waste was evaluated using differential scanning calorimetry (DSC) and gel permeation chromatography (GPC), demonstrating its stabilization effect during melt extrusion by preserving the molecular weight of the starting polymer. On the other hand, the dynamic mechanical analysis (DMA) revealed that the addition of f-CB did not negatively affect the mechanical properties of the resulting composite. In conclusion, mechanochemistry was used as a sustainable and unique strategy for the upcycling of waste PLA into a PLA-based composite stabilized by CB functionalized with the waste PLA itself.https://www.mdpi.com/1420-3049/30/1/94functionalizationmechanochemistrycarbon blackwaste recoveryPLA |
| spellingShingle | Aida Kiani Mattia Naddeo Federica Santulli Valentina Volpe Mina Mazzeo Maria Rosaria Acocella Mechanochemical Functionalization of Oxidized Carbon Black with PLA Molecules functionalization mechanochemistry carbon black waste recovery PLA |
| title | Mechanochemical Functionalization of Oxidized Carbon Black with PLA |
| title_full | Mechanochemical Functionalization of Oxidized Carbon Black with PLA |
| title_fullStr | Mechanochemical Functionalization of Oxidized Carbon Black with PLA |
| title_full_unstemmed | Mechanochemical Functionalization of Oxidized Carbon Black with PLA |
| title_short | Mechanochemical Functionalization of Oxidized Carbon Black with PLA |
| title_sort | mechanochemical functionalization of oxidized carbon black with pla |
| topic | functionalization mechanochemistry carbon black waste recovery PLA |
| url | https://www.mdpi.com/1420-3049/30/1/94 |
| work_keys_str_mv | AT aidakiani mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla AT mattianaddeo mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla AT federicasantulli mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla AT valentinavolpe mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla AT minamazzeo mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla AT mariarosariaacocella mechanochemicalfunctionalizationofoxidizedcarbonblackwithpla |