An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix
The aim of this work is to evaluate the effect of adding different amounts of SiO2 nanoparticles (NPs) during the synthesis of polylactic acid (PLA) and polypropylene (PP) blends on the proccesability. The analysis was carried out in terms of the morphological, rheological and mechanical properties...
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Elsevier
2021-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421007262 |
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| author | D. Palma-Ramírez A.M. Torres-Huerta M.A. Domínguez-Crespo J.S. Ponce-Hernández S.B. Brachetti-Sibaja A.E. Rodríguez-Salazar V. Urdapilleta-Inchaurregui |
| author_facet | D. Palma-Ramírez A.M. Torres-Huerta M.A. Domínguez-Crespo J.S. Ponce-Hernández S.B. Brachetti-Sibaja A.E. Rodríguez-Salazar V. Urdapilleta-Inchaurregui |
| author_sort | D. Palma-Ramírez |
| collection | DOAJ |
| description | The aim of this work is to evaluate the effect of adding different amounts of SiO2 nanoparticles (NPs) during the synthesis of polylactic acid (PLA) and polypropylene (PP) blends on the proccesability. The analysis was carried out in terms of the morphological, rheological and mechanical properties as well as their potential applications for packaging. To reach this goal, it was initially realized an optimization of sol–gel parameters to produce of SiO2 NPs with a particle size <20 nm. Thereafter, different quantities of SiO2 NPs (1, 2, 3, 5 wt.%) were incorporated into PLA matrix through melt mixing process to achieve pellets and finally, it was realized the polymer blend to produce PP100-x (PLA-SiO2)x nanocomposites (x = 5, 10 and 20 wt.%, of PLA-SiO2 pellets). It was found that the addition of SiO2 into PLA matrix improves the crystallinity percentage, from 10 to 77 %, depending on the SiO2 quantity; however, it also restricts the movement of PLA chains favoring a viscous behavior. A high dispersion of PLA-SiO2 systems into PP matrix was obtained in composites containing 1 wt.% of SiO2. The presence of inorganic nanostructures modified the dipole–dipole interaction between organic components affecting the microstructure and thermal stability (lower Td). The observed interaction and high dispersion with low amounts of SiO2 NPs (1 wt.%), led to improve the interfacial miscibility, which in turn enhanced the mechanical properties in the PP90(PLA-SiO2)10 nanocomposites, compared to PP and PLA. The results indicate that at the end of product shelf-life, this composition can promote a faster degradation in contrast with pure PP and PP-PLA composites. |
| first_indexed | 2024-12-13T22:04:27Z |
| format | Article |
| id | doaj.art-9f8690fa9b614a31994056f2a847d052 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-13T22:04:27Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-9f8690fa9b614a31994056f2a847d0522022-12-21T23:29:54ZengElsevierJournal of Materials Research and Technology2238-78542021-09-011421502164An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrixD. Palma-Ramírez0A.M. Torres-Huerta1M.A. Domínguez-Crespo2J.S. Ponce-Hernández3S.B. Brachetti-Sibaja4A.E. Rodríguez-Salazar5V. Urdapilleta-Inchaurregui6Instituto Politécnico Nacional, UPIIH, km. 1+500, Carretera Pachuca-Actopan, C.P. 42162, San Agustín Tlaxiaca, Hgo, Mexico; Instituto Politécnico Nacional, Centro Mexicano para la Producción más Limpia (CMPL), Av. Acueducto s/n, la Laguna Ticomán, C.P. 07340, Ciudad de México, MexicoInstituto Politécnico Nacional, UPIIH, km. 1+500, Carretera Pachuca-Actopan, C.P. 42162, San Agustín Tlaxiaca, Hgo, Mexico; Corresponding author.Instituto Politécnico Nacional, UPIIH, km. 1+500, Carretera Pachuca-Actopan, C.P. 42162, San Agustín Tlaxiaca, Hgo, Mexico; Corresponding author.Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, CIATEJ-Unidad Noreste. Parque de Investigación e Innovación Tecnológica (PIIT), C.P. 66629, Apodaca, Nuevo Léon, MexicoTecnológico Nacional de México, IT de Ciudad Madero, D.E.P.I. Ave Primero de Mayo S.N. Col. Los Mangos., C.P. 89449, Cd. Madero, Tamps, MexicoInstituto Politécnico Nacional, CICATA Querétaro, Cerro Blanco 141, Col. Colinas del Cimatario, C.P. 76090, Santiago de Querétaro, Querétaro, MexicoInstituto Politécnico Nacional, ESFM, Av. Instituto Politécnico Nacional S/N, Ciudad de México, 07738, MexicoThe aim of this work is to evaluate the effect of adding different amounts of SiO2 nanoparticles (NPs) during the synthesis of polylactic acid (PLA) and polypropylene (PP) blends on the proccesability. The analysis was carried out in terms of the morphological, rheological and mechanical properties as well as their potential applications for packaging. To reach this goal, it was initially realized an optimization of sol–gel parameters to produce of SiO2 NPs with a particle size <20 nm. Thereafter, different quantities of SiO2 NPs (1, 2, 3, 5 wt.%) were incorporated into PLA matrix through melt mixing process to achieve pellets and finally, it was realized the polymer blend to produce PP100-x (PLA-SiO2)x nanocomposites (x = 5, 10 and 20 wt.%, of PLA-SiO2 pellets). It was found that the addition of SiO2 into PLA matrix improves the crystallinity percentage, from 10 to 77 %, depending on the SiO2 quantity; however, it also restricts the movement of PLA chains favoring a viscous behavior. A high dispersion of PLA-SiO2 systems into PP matrix was obtained in composites containing 1 wt.% of SiO2. The presence of inorganic nanostructures modified the dipole–dipole interaction between organic components affecting the microstructure and thermal stability (lower Td). The observed interaction and high dispersion with low amounts of SiO2 NPs (1 wt.%), led to improve the interfacial miscibility, which in turn enhanced the mechanical properties in the PP90(PLA-SiO2)10 nanocomposites, compared to PP and PLA. The results indicate that at the end of product shelf-life, this composition can promote a faster degradation in contrast with pure PP and PP-PLA composites.http://www.sciencedirect.com/science/article/pii/S2238785421007262PLA-SiO2 processabilityPP100-x(PLA-SiO2)x nanocompositesMechanical propertiesBiodegradability |
| spellingShingle | D. Palma-Ramírez A.M. Torres-Huerta M.A. Domínguez-Crespo J.S. Ponce-Hernández S.B. Brachetti-Sibaja A.E. Rodríguez-Salazar V. Urdapilleta-Inchaurregui An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix Journal of Materials Research and Technology PLA-SiO2 processability PP100-x(PLA-SiO2)x nanocomposites Mechanical properties Biodegradability |
| title | An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix |
| title_full | An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix |
| title_fullStr | An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix |
| title_full_unstemmed | An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix |
| title_short | An assembly strategy of polylactic acid (PLA)-SiO2 nanocomposites embedded in polypropylene (PP) matrix |
| title_sort | assembly strategy of polylactic acid pla sio2 nanocomposites embedded in polypropylene pp matrix |
| topic | PLA-SiO2 processability PP100-x(PLA-SiO2)x nanocomposites Mechanical properties Biodegradability |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421007262 |
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