ESPERIDIANA AUGUSTA BARRETOS DE MOURA

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 CurrĆ­culo Lattes on October 8th 2021)


Possui graduaĆ§Ć£o em Engenharia QuĆ­mica pela Faculdade Oswaldo Cruz (1983), mestrado em Tecnologia Nuclear ? AplicaƧƵes pelo IPEN/USP (1999), doutorado em Tecnologia Nuclear ? AplicaƧƵes pelo IPEN/USP (2006) e PĆ³s-Doutorado no Center for Advanced Materials (T-CAM) da Tuskegee University, AL, USA. As principais linhas de pesquisa sĆ£o: SĆ­ntese de nanopartĆ­culas metĆ”licas; ObtenĆ§Ć£o e caracterizaĆ§Ć£o de nanopartĆ­culas a partir de resĆ­duos da atividade mineral e da agroindĆŗstria; FuncionalizaĆ§Ć£o de micro e nanocargas; SĆ­ntese e reduĆ§Ć£o de Ć³xido de grafeno; Desenvolvimento e modificaƧao de materiais compĆ³sitos baseados em polĆ­meros convencionais e biodegradĆ”veis com fibras vegetais, micro e nanocargas de origem renovĆ”vel; Desenvolvimento de embalagens plĆ”sticas biodegradĆ”veis, ativas e inteligentes para alimentos, cosmĆ©ticos, produtos mĆ©dicos e farmacĆŖuticos;Desenvolvimento de materiais polimĆ©ricos condutores; Desenvolvimento de biomateriais para aplicaĆ§Ć£o na regeneraĆ§Ć£o de tecidos Ć³sseos e dentĆ”rios. (Texto extraĆ­do do CurrĆ­culo Lattes em 08 out. 2021)

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  • Artigo IPEN-doc 27545
    Ligninā€‘based polyethylene films with enhanced thermal, opacity and biodegradability properties for agricultural mulch applications
    2021 - CHIAPPERO, LUCIO R.; BARTOLOMEI, SUELLEN S.; ESTENOZ, DIANA A.; MOURA, ESPERIDIANA A.B.; NICOLAU, VERONICA V.
    Lignins are promising alternative raw materials for biocomposites due to their renewability, low cost and abundance. In this work, the use of (softwood and hardwood) Kraft lignins in the development of LLDPE/lignin films for agricultural mulch applications is studied. Processable blends were obtained from unmodified softwood lignin (SW) and from hardwood lignin modified by esterification (HWE). LLDPE was pelletized with (2.5%, 5% and 10%) lignin with particle size between 38 and 75 Ī¼m and flexible films were blown extruded. Processable extrusion blends showed temperature differences lower than 20 Ā°C between the Tg of lignin and the melting temperature of LLPDE. Films from neat LLPDE and with 2.5% of HWE and up to 5% SW exhibited statistically comparable (ā‰… 349%) values of ductility. Ester groups present in lignin improve weight loss of lignin-based blends after soil buried test.