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Open AccessArticle

Cellulose-Silica Nanocomposites of High Reinforcing Content with Fungi Decay Resistance by One-Pot Synthesis

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Universidad del Papaloapan, Circuito Central 200, Parque Industrial, Tuxtepec 68301, Mexico
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Universidad Juárez del Estado de Durango, Facultad de Ciencias Químicas. Av. Veterinaria S/N, Circuito Universitario, Durango 34120, Mexico
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Laboratorio Nacional de Nano y Biomateriales, Depto. de Física Aplicada, CINVESTAV Mérida, km 6 Ant. Carr. a Progreso, Mérida 97310, Mexico
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Facultad de Ciencias, Universidad Nacional Autónoma de México, Circuito Interior, Ciudad Universitaria, CdMx 04510, Mexico
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Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx 04510, Mexico
*
Author to whom correspondence should be addressed.
Materials 2018, 11(4), 575; https://doi.org/10.3390/ma11040575
Received: 5 March 2018 / Revised: 21 March 2018 / Accepted: 29 March 2018 / Published: 9 April 2018
(This article belongs to the Section Advanced Composites)
Hybrid bionanocomposites based on cellulose matrix, with silica nanoparticles as reinforcers, were prepared by one-pot synthesis of cellulose surface modified by solvent exchange method to keep the biopolymer net void for hosting inorganic nanoparticles. Neither expensive inorganic-particle precursors nor crosslinker agents or catalysts were used for effective dispersion of reinforcer concentration up to 50 wt %. Scanning electron microscopy of the nanocomposites shows homogeneous dispersion of reinforcers in the surface modified cellulose matrix. The FTIR spectra demonstrated the cellulose features even at 50 weight percent content of silica nanoparticles. Such a high content of silica provides high thermal stability to composites, as seen by TGA-DSC. The fungi decay resistance to Trametes versicolor was measured by standard test showing good resistance even with no addition of antifungal agents. This one-pot synthesis of biobased hybrid materials represents an excellent way for industrial production of high performance materials, with a high content of inorganic nanoparticles, for a wide variety of applications. View Full-Text
Keywords: nanocomposites; hybrid materials; one-pot synthesis; thermal stability; fungi decay resistance nanocomposites; hybrid materials; one-pot synthesis; thermal stability; fungi decay resistance
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Rodríguez-Robledo, M.C.; González-Lozano, M.A.; Ponce-Peña, P.; Quintana Owen, P.; Aguilar-González, M.A.; Nieto-Castañeda, G.; Bazán-Mora, E.; López-Martínez, R.; Ramírez-Galicia, G.; Poisot, M. Cellulose-Silica Nanocomposites of High Reinforcing Content with Fungi Decay Resistance by One-Pot Synthesis. Materials 2018, 11, 575.

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