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| Main Authors: | , , , , , |
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| Format: | Artículo Open Access |
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Wiley
2024
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| Online Access: | https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.28792 |
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| author | M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon |
| author_facet | M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon |
| collection | Wiley Open Access |
| contents | Enhancing the photostability and mechanical properties of poly‐lactic acid ( PLA ) composites with glutaric acid functionalized titanium dioxide ( TiO 2 ) M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon Polymer Composites Abstract The performance of Poly(lactic acid) (PLA) composites reinforced with functionalized titanium dioxide (TiO 2 ) nanoparticles in rutile and anatase crystalline phases were systematically investigated. The results underline that the incorporation of TiO 2 , regardless of its crystalline structure, significantly enhances PLA's crystallinity by 85%. Notably, rutile TiO 2 , when functionalized with higher glutaric acid concentrations, was an effective crystallinity booster by 95%, passing from 20.39% to 39.58% crystallinity for the PLA/TiO 2 R20 + 10% system. Furthermore, this research elucidates that the selection between anatase and rutile phases plays a vital role in the photostabilization. Functionalized Rutile TiO 2 exhibited exceptional UV resistance, effectively inhibiting photodegradation; for example, after 15 days of exposure, the functionalized systems exhibited a 497.6% improvement for PLA/TiO 2 R10 + 5% (22.1 ± 2.5 MPa), while the PLA/TiO 2 R10 + 5% showed an 85.1% increase in composite stiffness (35.5 ± 3.5 MPa) after 7 days of degradation, in comparison with pristine PLA (19.2 ± 2.9 MPa). Anatase, conversely, displayed varying effects depending on concentration, acting as a stabilizer at lower levels and a promoter of degradation at higher concentrations. This knowledge enables the precise modifying of PLA composites for specific applications, balancing crystallinity, mechanical properties, and UV resistance for a diverse array of applications. Highlights TiO 2 enhances photostability in PLA confirming its potential as a UV stabilizer. Comparing anatase and rutile phase: Unveiling PLA composite dynamics. Glutaric acid on TiO 2 enhances PLA composite strength significantly. Optimal acid concentration key to composite performance. Tailored PLA composites balance crystallinity, mechanics, and UV resistance. 10.1002/pc.28792 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/pc.28792 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_pc_28792 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Enhancing the photostability and mechanical properties of poly‐lactic acid ( PLA ) composites with glutaric acid functionalized titanium dioxide ( TiO 2 ) M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon Polymer Composites Enhancing the photostability and mechanical properties of poly‐lactic acid ( PLA ) composites with glutaric acid functionalized titanium dioxide ( TiO 2 ) M. G. Peña‐Juarez B. A. Velázquez Balderas A. Almendarez‐Camarillo E. J. Gutierrez‐Castañeda L. López‐Zamora J. A. Gonzalez‐Calderon Polymer Composites Abstract The performance of Poly(lactic acid) (PLA) composites reinforced with functionalized titanium dioxide (TiO 2 ) nanoparticles in rutile and anatase crystalline phases were systematically investigated. The results underline that the incorporation of TiO 2 , regardless of its crystalline structure, significantly enhances PLA's crystallinity by 85%. Notably, rutile TiO 2 , when functionalized with higher glutaric acid concentrations, was an effective crystallinity booster by 95%, passing from 20.39% to 39.58% crystallinity for the PLA/TiO 2 R20 + 10% system. Furthermore, this research elucidates that the selection between anatase and rutile phases plays a vital role in the photostabilization. Functionalized Rutile TiO 2 exhibited exceptional UV resistance, effectively inhibiting photodegradation; for example, after 15 days of exposure, the functionalized systems exhibited a 497.6% improvement for PLA/TiO 2 R10 + 5% (22.1 ± 2.5 MPa), while the PLA/TiO 2 R10 + 5% showed an 85.1% increase in composite stiffness (35.5 ± 3.5 MPa) after 7 days of degradation, in comparison with pristine PLA (19.2 ± 2.9 MPa). Anatase, conversely, displayed varying effects depending on concentration, acting as a stabilizer at lower levels and a promoter of degradation at higher concentrations. This knowledge enables the precise modifying of PLA composites for specific applications, balancing crystallinity, mechanical properties, and UV resistance for a diverse array of applications. Highlights TiO 2 enhances photostability in PLA confirming its potential as a UV stabilizer. Comparing anatase and rutile phase: Unveiling PLA composite dynamics. Glutaric acid on TiO 2 enhances PLA composite strength significantly. Optimal acid concentration key to composite performance. Tailored PLA composites balance crystallinity, mechanics, and UV resistance. 10.1002/pc.28792 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Enhancing the photostability and mechanical properties of poly‐lactic acid ( PLA ) composites with glutaric acid functionalized titanium dioxide ( TiO 2 ) |
| topic | Polymer Composites |
| url | https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.28792 |