Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure
Plant fibers have gained notoriety for reinforcing composite polymers due to their abundance, availability, versatility, and friendliness to the environment. Research in composites of biodegradable polymers with natural fibers as reinforcement will continue because the mechanical and physical proper...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
|
| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/ijps/9935365 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850112840824782848 |
|---|---|
| author | Natalia Gomez-Gast Andrea Guevara-Morales Ulises Figueroa-López Eduardo San Martin-Martínez Horacio Vieyra |
| author_facet | Natalia Gomez-Gast Andrea Guevara-Morales Ulises Figueroa-López Eduardo San Martin-Martínez Horacio Vieyra |
| author_sort | Natalia Gomez-Gast |
| collection | DOAJ |
| description | Plant fibers have gained notoriety for reinforcing composite polymers due to their abundance, availability, versatility, and friendliness to the environment. Research in composites of biodegradable polymers with natural fibers as reinforcement will continue because the mechanical and physical properties, processability, and cost of plastics derived from petroleum are still needed in biodegradable polymers. This study analyzed the mechanical stability of biodegradable polyhydroxybutyrate–thermoplastic starch (PHB-TPS) composites reinforced with oat and corn cob fibers under environmental conditions. We investigated how different fiber concentrations affect the mechanical properties of injection-molded composites, aiming to improve PHB’s performance while preserving its biodegradability. The composites were subjected to accelerated temperature/humidity exposure using a climatic chamber to simulate and evaluate mechanical properties before and after long-term environmental exposure to humidity, heat, and cold. Results showed that the exposure in the climatic chamber led to yield strength decreases of up to 80% due to moisture absorption and microcracks at the fiber-matrix interface. The PHB/TPS/oat and cob fiber blends demonstrated mechanical properties comparable to those of FEP (fluorinated ethylene propylene), polyvinylidene chloride (PVDC), and thermoplastic polyolefin (TPO), making them suitable for applications like packaging and containers. |
| format | Article |
| id | doaj-art-5e54d052db57432895a4bcf91c54457b |
| institution | OA Journals |
| issn | 1687-9430 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-5e54d052db57432895a4bcf91c54457b2025-08-20T02:37:17ZengWileyInternational Journal of Polymer Science1687-94302025-01-01202510.1155/ijps/9935365Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity ExposureNatalia Gomez-Gast0Andrea Guevara-Morales1Ulises Figueroa-López2Eduardo San Martin-Martínez3Horacio Vieyra4Tecnologico de MonterreyTecnologico de MonterreyTecnologico de MonterreyBiomaterials LaboratoryTecnologico de MonterreyPlant fibers have gained notoriety for reinforcing composite polymers due to their abundance, availability, versatility, and friendliness to the environment. Research in composites of biodegradable polymers with natural fibers as reinforcement will continue because the mechanical and physical properties, processability, and cost of plastics derived from petroleum are still needed in biodegradable polymers. This study analyzed the mechanical stability of biodegradable polyhydroxybutyrate–thermoplastic starch (PHB-TPS) composites reinforced with oat and corn cob fibers under environmental conditions. We investigated how different fiber concentrations affect the mechanical properties of injection-molded composites, aiming to improve PHB’s performance while preserving its biodegradability. The composites were subjected to accelerated temperature/humidity exposure using a climatic chamber to simulate and evaluate mechanical properties before and after long-term environmental exposure to humidity, heat, and cold. Results showed that the exposure in the climatic chamber led to yield strength decreases of up to 80% due to moisture absorption and microcracks at the fiber-matrix interface. The PHB/TPS/oat and cob fiber blends demonstrated mechanical properties comparable to those of FEP (fluorinated ethylene propylene), polyvinylidene chloride (PVDC), and thermoplastic polyolefin (TPO), making them suitable for applications like packaging and containers.http://dx.doi.org/10.1155/ijps/9935365 |
| spellingShingle | Natalia Gomez-Gast Andrea Guevara-Morales Ulises Figueroa-López Eduardo San Martin-Martínez Horacio Vieyra Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure International Journal of Polymer Science |
| title | Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure |
| title_full | Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure |
| title_fullStr | Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure |
| title_full_unstemmed | Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure |
| title_short | Mechanical Behavior of Biodegradable PHB-TPS Reinforced With Oat and Corn Cob Fibers After Accelerated Thermal-Humidity Exposure |
| title_sort | mechanical behavior of biodegradable phb tps reinforced with oat and corn cob fibers after accelerated thermal humidity exposure |
| url | http://dx.doi.org/10.1155/ijps/9935365 |
| work_keys_str_mv | AT nataliagomezgast mechanicalbehaviorofbiodegradablephbtpsreinforcedwithoatandcorncobfibersafteracceleratedthermalhumidityexposure AT andreaguevaramorales mechanicalbehaviorofbiodegradablephbtpsreinforcedwithoatandcorncobfibersafteracceleratedthermalhumidityexposure AT ulisesfigueroalopez mechanicalbehaviorofbiodegradablephbtpsreinforcedwithoatandcorncobfibersafteracceleratedthermalhumidityexposure AT eduardosanmartinmartinez mechanicalbehaviorofbiodegradablephbtpsreinforcedwithoatandcorncobfibersafteracceleratedthermalhumidityexposure AT horaciovieyra mechanicalbehaviorofbiodegradablephbtpsreinforcedwithoatandcorncobfibersafteracceleratedthermalhumidityexposure |