Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties
Bionanocomposites based on Polylactide (PLA) and Polyhydroxybutyrate (PHB) blends were successfully obtained through a combined extrusion and impregnation process using supercritical CO<sub>2</sub> (scCO<sub>2</sub>). Graphene oxide (GO) and cinnamaldehyde (Ci) were incorpora...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/22/3968 |
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| author | Carolina Villegas Alejandra Torres Julio Bruna María Ignacia Bustos Alvaro Díaz-Barrera Julio Romero Adrián Rojas Abel Guarda |
| author_facet | Carolina Villegas Alejandra Torres Julio Bruna María Ignacia Bustos Alvaro Díaz-Barrera Julio Romero Adrián Rojas Abel Guarda |
| author_sort | Carolina Villegas |
| collection | DOAJ |
| description | Bionanocomposites based on Polylactide (PLA) and Polyhydroxybutyrate (PHB) blends were successfully obtained through a combined extrusion and impregnation process using supercritical CO<sub>2</sub> (scCO<sub>2</sub>). Graphene oxide (GO) and cinnamaldehyde (Ci) were incorporated into the blends as nano-reinforcement and an active compound, respectively, separately, and simultaneously. From the results, cinnamaldehyde quantification values varied between 5.7% and 6.1% (<i>w</i>/<i>w</i>). When GO and Ci were incorporated, elongation percentage increased up to 16%, and, therefore, the mechanical properties were improved, with respect to neat PLA. The results indicated that the Ci diffusion through the blends and bionanocomposites was influenced by the nano-reinforcing incorporation. The disintegration capacity of the developed materials decreased with the incorporation of GO and PHB, up to 14 and 23 days of testing, respectively, without compromising the biodegradability characteristics of the final material. |
| first_indexed | 2024-03-10T05:07:34Z |
| format | Article |
| id | doaj.art-f8f0f9ec443c446287f7f6c5dfe1848b |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T05:07:34Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f8f0f9ec443c446287f7f6c5dfe1848b2023-11-23T01:09:39ZengMDPI AGPolymers2073-43602021-11-011322396810.3390/polym13223968Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport PropertiesCarolina Villegas0Alejandra Torres1Julio Bruna2María Ignacia Bustos3Alvaro Díaz-Barrera4Julio Romero5Adrián Rojas6Abel Guarda7Center for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileCenter for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileCenter for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileCenter for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileEscuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340000, ChileLaboratory of Membrane Separation Processes (LabProSeM), Department of Chemical Engineering, Engineering Faculty, University of Santiago de Chile, Santiago 9170201, ChileCenter for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileCenter for Packaging Innovation (LABEN), Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, ChileBionanocomposites based on Polylactide (PLA) and Polyhydroxybutyrate (PHB) blends were successfully obtained through a combined extrusion and impregnation process using supercritical CO<sub>2</sub> (scCO<sub>2</sub>). Graphene oxide (GO) and cinnamaldehyde (Ci) were incorporated into the blends as nano-reinforcement and an active compound, respectively, separately, and simultaneously. From the results, cinnamaldehyde quantification values varied between 5.7% and 6.1% (<i>w</i>/<i>w</i>). When GO and Ci were incorporated, elongation percentage increased up to 16%, and, therefore, the mechanical properties were improved, with respect to neat PLA. The results indicated that the Ci diffusion through the blends and bionanocomposites was influenced by the nano-reinforcing incorporation. The disintegration capacity of the developed materials decreased with the incorporation of GO and PHB, up to 14 and 23 days of testing, respectively, without compromising the biodegradability characteristics of the final material.https://www.mdpi.com/2073-4360/13/22/3968PLA/PHB blendbionanocompositesgraphene oxidenano-reinforcementrelease kinetic |
| spellingShingle | Carolina Villegas Alejandra Torres Julio Bruna María Ignacia Bustos Alvaro Díaz-Barrera Julio Romero Adrián Rojas Abel Guarda Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties Polymers PLA/PHB blend bionanocomposites graphene oxide nano-reinforcement release kinetic |
| title | Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties |
| title_full | Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties |
| title_fullStr | Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties |
| title_full_unstemmed | Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties |
| title_short | Obtaining Active Polylactide (PLA) and Polyhydroxybutyrate (PHB) Blends Based Bionanocomposites Modified with Graphene Oxide and Supercritical Carbon Dioxide (scCO<sub>2</sub>)-Assisted Cinnamaldehyde: Effect on Thermal-Mechanical, Disintegration and Mass Transport Properties |
| title_sort | obtaining active polylactide pla and polyhydroxybutyrate phb blends based bionanocomposites modified with graphene oxide and supercritical carbon dioxide scco sub 2 sub assisted cinnamaldehyde effect on thermal mechanical disintegration and mass transport properties |
| topic | PLA/PHB blend bionanocomposites graphene oxide nano-reinforcement release kinetic |
| url | https://www.mdpi.com/2073-4360/13/22/3968 |
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