Residues from agroindustry as reinforcement in foams based on PBAT/PLA blend
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2017
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AMERICAN CHEMICAL SOCIETY NATIONAL MEETING & EXPOSITION, 253rd
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Resumo
Nowadays, agroindustry residues have attracted great attention in both the academic and
industrial worlds. In fact, biodegradable polymers reinforced with residues derived from renewable
sources, as avian eggshell waste and ashes from the burning of sugarcane bagasse are economically and
ecologically attractive materials to produce a new class of bio-products with eco attributes, which make
them environmentally friendly, completely degradable and sustainable. In Brazil, the food industry
generates every year huge amounts of avian eggshell waste, an industrial byproduct containing 95 % of
calcium carbonate, and its disposal constitutes a serious environmental hazard. Tons of ashes are
produced from the burning process of sugarcane bagasse to produce energy in Brazilian sugar and
bioethanol industries. These ashes, which are not rich in nutrients for the crop, are usually mixed with
organic fertilizers or disposed of in nature without efficient management. However, these ashes containing
about 94 % of silica. This study aims to the development of bio-foams from PBAT/PLA blend reinforced
with bio-calcium carbonate nanoparticles from eggshells and green-silica nanoparticles. Composites were
obtained by melting extrusion process, blending PBAT/PLA with 3 % of bio-calcium carbonate
nanoparticles and 3 % of green-silica nanoparticles. The composites were then extruded in a Rheomex
332p single special screw for foaming. Samples were submitted to tensile and compression tests, MFI,
DSC, XRD and SEM-FEG analyses.
Como referenciar
FREITAS, TARIK; COIADO, RENATA; LAZO, GISELE; OLIVEIRA, RENE; MOURA, ESPERIDIANA. Residues from agroindustry as reinforcement in foams based on PBAT/PLA blend. In: AMERICAN CHEMICAL SOCIETY NATIONAL MEETING & EXPOSITION, 253rd, April 2-6, 2017, San Francisco, CA, USA. Abstract... Washington, DC, USA: American Chemical Society, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/31183. Acesso em: 19 Mar 2025.
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