Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films
This work aimed to evaluate the properties of butylene adipate-co-terephthalate (PBAT) degraded after 1800 days of storage (DPBAT) by preparing blends (films) with crosslinked starch (Cm) through extrusion and thermocompression. Different ratios of DPBAT:Cm (70:30, 60:40, and 50:50 m/m) were prepare...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/14/3106 |
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| author | Denise Agostina Grimaut Jania Betania Alves da Silva Paulo Vitor França Lemos Paulo Romano Cruz Correia Jamille Santos Santana Luiggi Cavalcanti Pessôa Santiago Estevez-Areco Lucía Mercedes Famá Silvia Nair Goyanes Henrique Rodrigues Marcelino Denilson de Jesus Assis Carolina Oliveira de Souza |
| author_facet | Denise Agostina Grimaut Jania Betania Alves da Silva Paulo Vitor França Lemos Paulo Romano Cruz Correia Jamille Santos Santana Luiggi Cavalcanti Pessôa Santiago Estevez-Areco Lucía Mercedes Famá Silvia Nair Goyanes Henrique Rodrigues Marcelino Denilson de Jesus Assis Carolina Oliveira de Souza |
| author_sort | Denise Agostina Grimaut |
| collection | DOAJ |
| description | This work aimed to evaluate the properties of butylene adipate-co-terephthalate (PBAT) degraded after 1800 days of storage (DPBAT) by preparing blends (films) with crosslinked starch (Cm) through extrusion and thermocompression. Different ratios of DPBAT:Cm (70:30, 60:40, and 50:50 m/m) were prepared. The incorporation of Cm into DPBAT significantly changed the properties of the films by making them stiffer (increasing Young’s modulus by up to 50%) and increasing the thermal resistance of DPBAT. The presence of crosslinked starch in the films made them less hydrophobic (with decreased contact angle and increased moisture content), but these parameters did not vary linearly with changes in the content of crosslinked starch in the blend (DPBAT:Cm). The microscopic images show an inhomogeneous distribution of Cm granules in the DPBAT matrix. Thus, the films prepared with PBAT show a significant decrease in their mechanical parameters and heat resistance after long-term storage. However, the preparation of blends of degraded DPBAT with crosslinked starch promoted changes in the properties of the films prepared by thermocompression, which could be useful for disposable packaging. |
| first_indexed | 2024-03-11T00:41:55Z |
| format | Article |
| id | doaj.art-4d7425a20cba4f00a04ab708050cfd77 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T00:41:55Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-4d7425a20cba4f00a04ab708050cfd772023-11-18T21:03:23ZengMDPI AGPolymers2073-43602023-07-011514310610.3390/polym15143106Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) FilmsDenise Agostina Grimaut0Jania Betania Alves da Silva1Paulo Vitor França Lemos2Paulo Romano Cruz Correia3Jamille Santos Santana4Luiggi Cavalcanti Pessôa5Santiago Estevez-Areco6Lucía Mercedes Famá7Silvia Nair Goyanes8Henrique Rodrigues Marcelino9Denilson de Jesus Assis10Carolina Oliveira de Souza11Graduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, BA, BrazilCenter for Exact and Technological Sciences, Collegiate of Mechanical Engineering, Federal University of Recôncavo da Bahia, Cruz das Almas 44380-000, BA, BrazilGraduate Program in Biotechnology-Northeast Biotechnology, Federal University of Bahia, Salvador 40110-100, BA, BrazilGraduate Program in Biotechnology-Northeast Biotechnology, Federal University of Bahia, Salvador 40110-100, BA, BrazilGraduate Program in Chemical Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, BA, BrazilGraduate Program in Chemical Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, BA, BrazilDepartment of Physics, Laboratory of Polymers and Composite Materials, Faculty of Exact and Natural Sciences, Buenos Aires University, University City, Buenos Aires 1428, ArgentinaDepartment of Physics, Laboratory of Polymers and Composite Materials, Faculty of Exact and Natural Sciences, Buenos Aires University, University City, Buenos Aires 1428, ArgentinaDepartment of Physics, Laboratory of Polymers and Composite Materials, Faculty of Exact and Natural Sciences, Buenos Aires University, University City, Buenos Aires 1428, ArgentinaDepartment of Medicine, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, BA, BrazilGraduate Program in Chemical Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, BA, BrazilGraduate Program in Food Science, College of Pharmacy, Federal University of Bahia, Salvador 40170-115, BA, BrazilThis work aimed to evaluate the properties of butylene adipate-co-terephthalate (PBAT) degraded after 1800 days of storage (DPBAT) by preparing blends (films) with crosslinked starch (Cm) through extrusion and thermocompression. Different ratios of DPBAT:Cm (70:30, 60:40, and 50:50 m/m) were prepared. The incorporation of Cm into DPBAT significantly changed the properties of the films by making them stiffer (increasing Young’s modulus by up to 50%) and increasing the thermal resistance of DPBAT. The presence of crosslinked starch in the films made them less hydrophobic (with decreased contact angle and increased moisture content), but these parameters did not vary linearly with changes in the content of crosslinked starch in the blend (DPBAT:Cm). The microscopic images show an inhomogeneous distribution of Cm granules in the DPBAT matrix. Thus, the films prepared with PBAT show a significant decrease in their mechanical parameters and heat resistance after long-term storage. However, the preparation of blends of degraded DPBAT with crosslinked starch promoted changes in the properties of the films prepared by thermocompression, which could be useful for disposable packaging.https://www.mdpi.com/2073-4360/15/14/3106blendscrosslinkingpotato starchploy(butylene adipate-co-terephthalate) |
| spellingShingle | Denise Agostina Grimaut Jania Betania Alves da Silva Paulo Vitor França Lemos Paulo Romano Cruz Correia Jamille Santos Santana Luiggi Cavalcanti Pessôa Santiago Estevez-Areco Lucía Mercedes Famá Silvia Nair Goyanes Henrique Rodrigues Marcelino Denilson de Jesus Assis Carolina Oliveira de Souza Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films Polymers blends crosslinking potato starch ploy(butylene adipate-co-terephthalate) |
| title | Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films |
| title_full | Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films |
| title_fullStr | Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films |
| title_full_unstemmed | Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films |
| title_short | Effect of Addition of Cross-Linked Starch on the Properties of Degraded PBAT Poly(butylene adipate-co-terephthalate) Films |
| title_sort | effect of addition of cross linked starch on the properties of degraded pbat poly butylene adipate co terephthalate films |
| topic | blends crosslinking potato starch ploy(butylene adipate-co-terephthalate) |
| url | https://www.mdpi.com/2073-4360/15/14/3106 |
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