Physical and mechanical properties of a vegetable oil based nanocomposite
| Autor: | Arantxa Eceiza, Veronica Lujan Mucci, Mirta Ines Aranguren, Juan Manuel Buffa, Gurutz Mondragon, M. Angeles Corcuera |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
CELLULOSE NANOCRYSTALS
Materials science Polymers and Plastics General Physics and Astronomy INGENIERÍAS Y TECNOLOGÍAS 02 engineering and technology 010402 general chemistry NANOCOMPOSITE 01 natural sciences VEGETABLE OIL Biotecnología Industrial law.invention chemistry.chemical_compound law Ingeniería de los Materiales Materials Chemistry medicine Crystallization Cellulose Composite material Polyurethane Nanotecnología chemistry.chemical_classification Nanocomposite Bioproductos Biomateriales Bioplásticos Biocombustibles Bioderivados etc Organic Chemistry Sulfuric acid Polymer Nano-materiales 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Castor oil Nanofiber 0210 nano-technology MECHANICAL PROPERTIES medicine.drug |
| Zdroj: | European Polymer Journal. 98:116-124 |
| ISSN: | 0014-3057 |
| Popis: | Nanocomposites films were prepared from a bio-based waterborne polyurethane and cellulose nanocrystals (CNCs) obtained from the sulfuric acid hydrolysis of cellulose nanofibers. The polyurethane used as matrix of the nanocomposite film was synthesized from a biobased macrodiol derived from castor oil, 2,2-bis(hydroxymethyl)propionic acid, 1,6-hexamethylene diisocyanate and triethylamine. The concentration of CNC in the films was varied from 0 to 10 wt.%, and the films obtained by casting were characterized by DSC, DMA, tensile tests and TGA. Due to the hydrophilic nature of the PU, the nanocrystals were well dispersed, obtaining homogenous and transparent films which displayed improved thermal and mechanical properties compared to the neat PU. The impact of the CNCs on the crystallization of the polymer was analyzed. Finally, the mechanical properties were fitted to well known theoretical models, allowing a better understanding of the interactions between polymer and filler in the composites. Fil: Buffa, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Mondragon, Gurutz. Universidad del País Vasco; España Fil: Corcuera, M. Angeles. Universidad del País Vasco; España Fil: Eceiza, Arantxa. Universidad del País Vasco; España Fil: Mucci, Veronica Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Aranguren, Mirta Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina |
| Databáze: | OpenAIRE |
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