CELIO HITOSHI WATAYA

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Biodegradable composite development incorporated with acai biomass
2016 - WATAYA, CELIO H.; ANDRADE SILVA, LEONARDO G. de
The aim of this study was to investigate the mechanical, morphological and thermal properties of biodegradable composites based on aliphatic-aromatic copolyester/polylatic acid blends (PBAT/PLA blends) incorporated by acai (Euterpe oleracea Mart) biomass, an abundant byproduct of the acai fruit agro industry. The biodegradable polymeric composites were prepared by melting extrusion process using a twin-screw extruder machine. The fibers removed from the acai biomass were used to reinforce the biodegradability of PBAT/PLA blends as the matrix. The influence of the acai biomass addition on the properties of the composites was investigated by using tensile and impact tests, SEM, DSC, and XRD analysis, correlation between the properties was discussed. The addition of acai biomass on biodegradable PBAT/PLA blends showed that it is possible to obtain interesting property gains in biodegradable polymer by using waste from renewable sources.
Biodegradable starch/copolyesters film reinforced with silica nanoparticles
2015 - LIMA, ROBERTA A.; OLIVEIRA, RENE R.; WATAYA, CELIO H.; MOURA, ESPERIDIANA A.B.
Mechanical morphological and thermal properties of açai fibers reinforced biodegradable polymer composites
2015 - WATAYA, CELIO H.; LIMA, ROBERTA A.; OLIVEIRA, RENE R.; MOURA, ESPERIDIANA A.B.