Low-cost, environmentally friendly route for producing CFRP laminates with microfibrillated cellulose interphase
| Autor: | B. E. B. Uribe, E. M. S. Chiromito, A. J. F. Carvalho, J. R. Tarpani |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | eXPRESS Polymer Letters, Vol 11, Iss 1, Pp 47-59 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1788-618X 55542417 |
| DOI: | 10.3144/expresspolymlett.2017.6 |
| Popis: | In this paper, a cost-effective and eco-friendly method to improve mechanical performance in continuous carbon fiber-reinforced polymer (CFRP) matrix composites is presented. Unsized fiber fabric preforms are coated with self-assembling sugarcane bagasse microfibrillated cellulose, and undergo vacuum-assisted liquid epoxy resin infusion to produce solid laminates after curing at ambient temperature. Quasi-static tensile, flexural and short beam testing at room temperature indicated that the stiffness, ultimate strength and toughness at ultimate load of the brand-new two-level hierarchical composite are substantially higher than in baseline, unsized fiber-reinforced epoxy laminate. Atomic force microscopy for height and phase imaging, along with scanning electron microscopy for the fracture surface survey, revealed a 400 nm-thick fiber/matrix interphase wherein microfibrillated cellulose exerts strengthening and toughening roles in the hybrid laminate. Market expansion of this class of continuous fiber-reinforced-polymer matrix composites exhibiting remarkable mechanical performance/cost ratios is thus conceivable. |
| Databáze: | Directory of Open Access Journals |
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