Influence of Composition on Mechanical Properties of Cassava Starch, Sisal Fiber and Carnauba Wax Biocomposites
| Autor: | Edna Maria Mendes Aroucha, Manoel Quirino da Silva Júnior, Ricardo Henrique de Lima Leite, Áleft Verlanger Rocha Gomes, Francisco Klebson Gomes dos Santos |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
biodegradable material Central composite design Starch Mechanical Engineering Young's modulus Condensed Matter Physics Casting X-ray diffraction chemistry.chemical_compound symbols.namesake Crystallinity composite central design chemistry Mechanics of Materials Ultimate tensile strength TA401-492 symbols General Materials Science Composite material Biocomposite Carnauba wax Materials of engineering and construction. Mechanics of materials crystallinity |
| Zdroj: | Materials Research v.22 suppl.1 2019 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Vol 22, Iss suppl 1 (2019) Materials Research, Volume: 22 Supplement 1, Article number: e20180887, Published: 24 OCT 2019 |
| ISSN: | 1980-5373 1516-1439 |
| Popis: | Concern for sustainable development has provided significant improvements in the development of biodegradable materials. This work aims to evaluate, through a central composite design (CCD), the mechanical properties of cassava starch-based biocomposites manufactured with different compositions of carnauba wax (CW), sisal fiber (SF) and glycerol (G). The biocomposites were obtained by casting method. The tensile strength (TS), modulus of elasticity (ME) and elongation at break (El) for the biocomposites were determined by tensile tests. Representative models were obtained to explain changes in mechanical properties of biocomposites as function of composition variables. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to elucidate interactions between the starch matrix and additives A biocomposite with 7.5% sisal fiber, 10% carnauba wax and 10% glycerol showed the best properties to possible applications. |
| Databáze: | OpenAIRE |
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