ESPERIDIANA AUGUSTA BARRETOS DE MOURA

ESPERIDIANA AUGUSTA BARRETOS DE MOURA

(Fonte: Lattes)

Resumo

Graduated in Chemical Engineering at Faculdade Oswaldo Cruz (1983), Master in Nuclear Technology - Applications at IPEN / USP (1999), Ph.D. in Nuclear Technology - Applications at IPEN / USP (2006) and Post-Doctorate at Center for Advanced Materials ( T-CAM) from Tuskegee University, AL, USA. The main lines of research are: Synthesis of metallic nanoparticles; Obtaining and characterization of nanoparticles from mineral activity and agroindustry residues; Micro and nanofiller functionalization; Synthesis and reduction of graphene oxide; Development and modification of composite materials based on conventional and biodegradable polymers with vegetable fibers, micro and nanofillers of renewable origin; Development of biodegradable, active and intelligent plastic packaging for food, cosmetics, medical and pharmaceutical products; Development of conductive polymeric materials; Development of biomaterials for application in the regeneration of bone and dental tissue. (Text obtained from the Currículo Lattes on October 8th 2021)

Possui graduação em Engenharia Química pela Faculdade Oswaldo Cruz (1983), mestrado em Tecnologia Nuclear ? Aplicações pelo IPEN/USP (1999), doutorado em Tecnologia Nuclear ? Aplicações pelo IPEN/USP (2006) e Pós-Doutorado no Center for Advanced Materials (T-CAM) da Tuskegee University, AL, USA. As principais linhas de pesquisa são: Síntese de nanopartículas metálicas; Obtenção e caracterização de nanopartículas a partir de resíduos da atividade mineral e da agroindústria; Funcionalização de micro e nanocargas; Síntese e redução de óxido de grafeno; Desenvolvimento e modificaçao de materiais compósitos baseados em polímeros convencionais e biodegradáveis com fibras vegetais, micro e nanocargas de origem renovável; Desenvolvimento de embalagens plásticas biodegradáveis, ativas e inteligentes para alimentos, cosméticos, produtos médicos e farmacêuticos;Desenvolvimento de materiais poliméricos condutores; Desenvolvimento de biomateriais para aplicação na regeneração de tecidos ósseos e dentários. (Texto extraído do Currículo Lattes em 08 out. 2021)

Página do item completo

Resultados de Busca

Agora exibindo 1 - 10 de 13

Mechanical and morphological properties of hybrid composites based on recycled LDPE/EVA blend reinforced with clay and babassu fiber residues
2020 - TAMURA, CAROLINE S.; ARANTES, MARIANA; CARMO, KARINA H.S.; SANTOS, BIANCA S.; OLIVEIRA, RENE R.; MOURA, ESPERIDIANA A.B.
Over the years the consumption of plastic products made of conventional polymers has produced a large amount of waste which has led to disposal problems worldwide. Among the alternatives to minimize these problems are reuse and recycling practices. Then, the recycling of plastic and the use of recycled materials to produce new materials reinforced with nanoparticles from natural resources can be an alternative to reduce inappropriate waste disposal. The objective of this study is to investigate the effects of the addition of clay and non-treated babassu fiber residues on the mechanical and morphological properties of composite based on recycled LDPE/EVA blend. Composite materials containing 1–3 wt% of babassu residues and 1 wt% of clay were prepared using a twin-screw extruder machine and flat die single extrusion process, in order to prepare hybrid composites sheets. The sheets prepared by recycled LDPE/EVA blend and its composites were characterized by tensile tests, XRD, and FE-SEM analysis and the correlation between properties was discussed.
The potential of micro- and nano-sized fillers extracted from agroindustry residues as reinforcements of thermoplastic-based biocomposites
2019 - MOURA, ESPERIDIANA A.B.
Currently, the relevance of reuse of agroindustrial waste to obtain fillers in micro- and nano-sizes for the development of biocomposite materials has grown significantly. Production processes based on sustainable and low carbon development have increased interest in more environmentally friendly polymer composites, which have made the origin of reinforcement materials a determining factor for their application in this segment. This work presents a review of the developments of our team in the field of thermoplastic biocomposites reinforced with micro- and nano-sized fillers extracted from agroindustry residues. The different residues from Brazilian agroindustry available for the extraction of micro- and nano-sized fillers for the production of polymer biocomposites, the methods of the extraction and treatments of these natural fillers are presented; and its application as reinforcements in thermoplastic-based biocomposite are discussed in this review.
Production and characterization of a hybrid composite of polypropylene reinforced with piassava (Attalea funifera Martius) fiber and light green clay
2019 - CORREIA, SABRINA A.; CRUZ, PEDRO V.; RODRIGUES, TASSON C.; MONTEIRO, ALEX; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.
Waste materials have been frequently used as reinforcing materials, to obtain a composite with better properties. Piassava palm is native to the state of Bahia (Brazil) and its fiber, piassava fiber (PF) is awaste material frequently used for industrial and domestic brooms, industrial brushes, carpets, and roofs. The light green clay (LGC) is a natural smectite Brazilian clay from the state of Paraiba. This work aims to produce and evaluate the advantages of this new product achieved by the inclusion of these two natural materials into polypropylene (PP) matrix. A melting extrusion process, using a twin-screw extruder and injection molding machine was used to obtain PP/LGC (97/3 wt%), PP/PF (90/10 wt%) and PP/LGC/PF (87/3/10 wt%) composites. The materials were characterized by mechanical tests, TG, DSC, SEM, and XRD analysis.
Development of bio-based foams prepared from PBAT/PLA reinforced with biio-calcium carbonate compatibilized by electron beam radiation
2016 - CARDOSO, ELIZABETH C.L.; SEIXAS, MARCUS V.S.; WIEBECK, HELIO; OLIVEIRA, RENE R.; MACHADO, GLAUSON A.F.; MOURA, ESPERIDIANA A.B.
Investigation on mechanical and thermal behaviours of copolyester/pla blend reinforced with TiOsub(2) nanoparticle
2015 - LIMA, ROBERTA A.; OLIVEIRA, RENE R.; RANGARI, VIJAYA K.; JEELANI, SHAIK; MOURA, ESPERIDIANA A.B.
Influence of the nanoclay cloisite 20A incorporation on properties of acrylonitrile butadiene styrene (ABS)
2015 - SALES, JORGE N.; SILVA, ANDRESSA A.; VALENZUELA-DIAZ, FRANCISCO R.; MOURA, ESPERIDIANA A.B.
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.
Investigation on mechanical and morphological behaviours of copolyesters/starch blend reinforced with rice husk ash
2014 - OLIVERIA, ELIANE H. de; SILVA, VALQUIRIA A.; OLIVEIRA, RENE R.; TERAN, ALEJANDRA S.; CASTILHO, ANIBAL V.A.; VALENZUELA-DIAZ, FRANCISCO R.; MOURA, ESPERIDIANA A.B.; HARADA, JULIO
Comparison between bio-composite based green HDPE/Brasil nut shell fiber (BNSF) treated and non treated by electron-beam radiation
2014 - CAMPOS, REJANE D.; HOSUR, MAHESH; JEELANI, SHAIK; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.; SEO, EMILIA S.M.
The composite is an alternative favorable for different industries because they combine the best mechanical properties with the best physic-chemistry properties of two or more materials. Environmental issues are forcing industry to seek alternative, more eco-friendly materials; using natural fibers with polymers based on renewable resources will allow many environmental issues to be solved. In this sense, researches with focus on vegetal fibers as reinforcement in composites is growing and positive results in performance have been achieved. This paper describes the preparation and characterization of bio-composite that was developed from Brazil Nut Shell Fiber (BNSF) and green high-density polyethylene (HDPE G). The composite prepared was irradiated with 100 and 200 kGy using a 1.5 MeV electron beam accelerator, at room temperature, in presence of air. The samples were characterized to understand the nature of interaction between BNSF reinforcement and HDPE matrix and their properties were discussed.