Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil
In a blend of poly(lactic acid) (PLA) and thermoplastic starch (TPS), a 15% load of hemp seed lignocellulosic filler (HF) was incorporated. Additionally, separate petrochemical-based compatibilizers, such as dicumyl peroxide (DCM) and benzoyl peroxide (LRL), as well as a bio-based compatibilizer, ma...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Budapest University of Technology
2024-02-01
|
| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0012796&mi=cd |
| _version_ | 1827594297560530944 |
|---|---|
| author | Alejandro Lerma-Canto Ivan Dominguez-Candela Jaume Gomez-Caturla Vicent Fombuena Daniel Garcia-Garcia |
| author_facet | Alejandro Lerma-Canto Ivan Dominguez-Candela Jaume Gomez-Caturla Vicent Fombuena Daniel Garcia-Garcia |
| author_sort | Alejandro Lerma-Canto |
| collection | DOAJ |
| description | In a blend of poly(lactic acid) (PLA) and thermoplastic starch (TPS), a 15% load of hemp seed lignocellulosic filler (HF) was incorporated. Additionally, separate petrochemical-based compatibilizers, such as dicumyl peroxide (DCM) and benzoyl peroxide (LRL), as well as a bio-based compatibilizer, maleinized hemp seed oil (MHO), were introduced. Adding HF to the PLA/TPS blend reduced tensile mechanical properties due to the stress concentration phenomenon arising from the lack of interaction between components, yielding a more brittle material. This issue was mitigated by adding compatibilizers, notably the incorporation of MHO into the PLA/TPS/HF blend this increased elongation at break by enhancing compatibility among the blend components and providing a plasticizing effect. Moreover, regarding thermal properties, it was observed that the inclusion of HF led to a decrease in the glass transition temperature (Tg), cold crystallization temperature (Tcc), and melting temperature (Tm). Conversely, adding MHO to this blend increased all these values compared to the PLA/TPS/HF mixture, attributed to the plasticizing effect imparted by the modified oil. Additionally, following fracture in Charpy impact testing, the samples were subjected to field emission scanning electron microscopy (FESEM) analysis to examine the fractured surface of the various samples. |
| first_indexed | 2024-03-09T02:30:43Z |
| format | Article |
| id | doaj.art-909feae865fb430182da08fe5674c9f2 |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-03-09T02:30:43Z |
| publishDate | 2024-02-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-909feae865fb430182da08fe5674c9f22023-12-06T13:28:08ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2024-02-0118221422810.3144/expresspolymlett.2024.15Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oilAlejandro Lerma-CantoIvan Dominguez-CandelaJaume Gomez-CaturlaVicent FombuenaDaniel Garcia-GarciaIn a blend of poly(lactic acid) (PLA) and thermoplastic starch (TPS), a 15% load of hemp seed lignocellulosic filler (HF) was incorporated. Additionally, separate petrochemical-based compatibilizers, such as dicumyl peroxide (DCM) and benzoyl peroxide (LRL), as well as a bio-based compatibilizer, maleinized hemp seed oil (MHO), were introduced. Adding HF to the PLA/TPS blend reduced tensile mechanical properties due to the stress concentration phenomenon arising from the lack of interaction between components, yielding a more brittle material. This issue was mitigated by adding compatibilizers, notably the incorporation of MHO into the PLA/TPS/HF blend this increased elongation at break by enhancing compatibility among the blend components and providing a plasticizing effect. Moreover, regarding thermal properties, it was observed that the inclusion of HF led to a decrease in the glass transition temperature (Tg), cold crystallization temperature (Tcc), and melting temperature (Tm). Conversely, adding MHO to this blend increased all these values compared to the PLA/TPS/HF mixture, attributed to the plasticizing effect imparted by the modified oil. Additionally, following fracture in Charpy impact testing, the samples were subjected to field emission scanning electron microscopy (FESEM) analysis to examine the fractured surface of the various samples.http://www.expresspolymlett.com/letolt.php?file=EPL-0012796&mi=cd biobased (bio-based) biocomposite biopolymer circular economy composting |
| spellingShingle | Alejandro Lerma-Canto Ivan Dominguez-Candela Jaume Gomez-Caturla Vicent Fombuena Daniel Garcia-Garcia Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil eXPRESS Polymer Letters biobased (bio-based) biocomposite biopolymer circular economy composting |
| title | Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil |
| title_full | Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil |
| title_fullStr | Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil |
| title_full_unstemmed | Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil |
| title_short | Efficient single-step reactive compatibilization of hemp flour-reinforced PLA/TPS blends: Exploring eco-friendly alternatives and bio-based compatibilizers from maleinized hemp oil |
| title_sort | efficient single step reactive compatibilization of hemp flour reinforced pla tps blends exploring eco friendly alternatives and bio based compatibilizers from maleinized hemp oil |
| topic | biobased (bio-based) biocomposite biopolymer circular economy composting |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0012796&mi=cd |
| work_keys_str_mv | AT alejandrolermacanto efficientsinglestepreactivecompatibilizationofhempflourreinforcedplatpsblendsexploringecofriendlyalternativesandbiobasedcompatibilizersfrommaleinizedhempoil AT ivandominguezcandela efficientsinglestepreactivecompatibilizationofhempflourreinforcedplatpsblendsexploringecofriendlyalternativesandbiobasedcompatibilizersfrommaleinizedhempoil AT jaumegomezcaturla efficientsinglestepreactivecompatibilizationofhempflourreinforcedplatpsblendsexploringecofriendlyalternativesandbiobasedcompatibilizersfrommaleinizedhempoil AT vicentfombuena efficientsinglestepreactivecompatibilizationofhempflourreinforcedplatpsblendsexploringecofriendlyalternativesandbiobasedcompatibilizersfrommaleinizedhempoil AT danielgarciagarcia efficientsinglestepreactivecompatibilizationofhempflourreinforcedplatpsblendsexploringecofriendlyalternativesandbiobasedcompatibilizersfrommaleinizedhempoil |