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Nanocellulose/PHBV composites: microfibilated mats by electrospinning

Grant number: 11/14153-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2012
Effective date (End): January 31, 2015
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal researcher:Herman Jacobus Cornelis Voorwald
Grantee:Kelly Cristina Coelho de Carvalho Benini
Home Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

The development of composites made from biodegradable and renewable raw materials has been the subject of much research in scientific institutions and industries due to factors such as increased environmental awareness and the need to develop products taking into account sustainability.Strengthening biodegradable matrices with lignocellulosic fibers is one of the viable alternatives to improve the mechanical properties of these matrices without the need for synthetic fibers. But often these fibers do not confer resistance and mechanical properties necessary for many applications of conventional polymers.Thus the use of cellulose fibers at the nanometer scale becomes interesting since these nanofibers have superior properties compared to other fibers both natural and synthetic micrometer. Among these properties can be highlighted their high surface area, good mechanical properties, including Young's modulus and tensile strength and low coefficient of thermal expansion.In this paper, cellulose nanofibers are obtained from the fiber sape grass through chemical treatments such as mercerization, bleaching and acid hydrolysis, followed by ultrasonification that break the cellulose chains through the process of cavitation.The nanofibers obtained by the different processes will be characterized according to their morphological and thermal properties in order to evaluate the effect of the method of obtaining the properties of nanofibers and then will be mixed in a solution of poly (3-hydroxybutyrate) PHB, to obtain nanofrils weaves by electrospinning process.These cellulose whiskers/PHB will be used as reinforcement to the obtaining of composites by hot compression molding.In each step of the process will be used physical, mechanical, thermal and morphological technics to define the processing parameters and properties of obtained materials.

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE CARVALHO BENINI, KELLY CRISTINA COELHO; ORNAGHI, JR., HEITOR L.; PEREIRA, PAULO HENRIQUE FERNANDES; MASCHIO, LEANDRO JOSE; VOORWALD, HERMAN JACOBUS CORNELIS; CIOFFI, MARIA ODILA HILARIO. Survey on chemical, physical, and thermal prediction behaviors for sequential chemical treatments used to obtain cellulose fromImperata Brasiliensis. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 143, n. 1, p. 73-85, JAN 2021. Web of Science Citations: 5.
COELHO DE CARVALHO BENINI, KELLY CRISTINA; ORNAGHI JR, HEITOR LUIZ; DE MEDEIROS, NICOLE MORABITO; FERNANDES PEREIRA, PAULO HENRIQUE; HILARIO CIOFFI, MARIA ODILA. Thermal characterization and lifetime prediction of the PHBV/nanocellulose biocomposites using different kinetic approaches. Cellulose, v. 27, n. 13 JUL 2020. Web of Science Citations: 3.
BENINI, KELLY C. C. C.; ORNAGHI JUNIOR, HEITOR L.; BIANCHI, OTAVIO; DE MAGALHAES, WELINGTON FERREIRA; HENRIQUES, FERNANDO FULGENCIO; WINDMOLLER, DARIO; VOORWALD, HERMAN J. C.; CIOFFI, MARIA O. H. Novel biodegradable composites based on PHBV: Effect of nanocellulose incorporation on the non-isothermal crystallization kinetic and structural parameters. Polymer Composites, v. 40, n. 8, p. 3156-3165, AUG 2019. Web of Science Citations: 2.
AVILA DIAS MACIEL, MAISA MILANEZ; COELHO DE CARVALHO BENINI, KELLY CRISTINA; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA. Obtainment and characterization of nanocellulose from an unwoven industrial textile cotton waste: Effect of acid hydrolysis conditions. International Journal of Biological Macromolecules, v. 126, p. 496-506, APR 1 2019. Web of Science Citations: 6.
COELHO DE CARVALHO BENINI, KELLY CRISTINA; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA; REZENDE, MIRABEL CERQUEIRA; ARANTES, VALDEIR. Preparation of nanocellulose from Imperata brasiliensis grass using Taguchi method. Carbohydrate Polymers, v. 192, p. 337-346, JUL 15 2018. Web of Science Citations: 14.
DE CARVALHO BENINI, KELLY C. C.; BROCKS, THATIANE; MONTORO, SERGIO R.; HILARIO CIOFFI, MARIA ODILA; CORNELIS VOORWALD, HERMAN JACOBUS. Effect of Fiber Chemical Treatment of Nonwoven Coconut Fiber/Epoxy Composites Adhesion Obtained by RTM Process. Polymer Composites, v. 38, n. 11, p. 2518-2527, NOV 2017. Web of Science Citations: 2.
COELHO DE CARVALHO BENINI, KELLY CRISTINA; CORNELIS VOORWALD, HERMAN JACOBUS; HILARIO CIOFFI, MARIA ODILA; MILANESE, ANDRESSA CECILIA; ORNAGHI, JR., HEITOR L. . JOURNAL OF NATURAL FIBERS, v. 14, n. 1, p. 112-125, 2017. Web of Science Citations: 4.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
BENINI, Kelly Cristina Coelho de Carvalho. Nanocellulose/PHBV composites: microfibilated mats by electrospinning. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Guaratinguetá Guaratinguetá.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.