Effect of graphite nanosheets on electrical, electromagnetic, mechanical and morphological characteristics of PHBV/GNS nanocomposites  

Larissa S. Montagna1*, Thaís L. do A. Montanheiro1, Maurício R. Baldan2, Ana Paula S. Oliveira2, Marcelo A. de Farias3, Marcele A. Hocevar4, Luiza C. Folgueras1, 5, Fábio R. Passador1, Ana Paula Lemes1, Mirabel C. Rezende1

1 Institute of Science and Technology, Technology Laboratory of Polymers and Biopolymers (TecPBio), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil

2 Associated Laboratory of Sensors and Materials (LAS), National Institute for Space Research (INPE), São José dos Campos, SP, Brazil

3 Brazilian Nanotechnology National Laboratory (LNNano/CNPEM), Campinas, SP, Brazil

4 Laboratory of Polymeric Materials (LAPOL), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil

5University of Taubaté (UNITAU), Mechanical Engineering Department, Taubaté, SP, Brazil

Adv. Mater. Lett., 2018, 9 (7), pp 499-504

DOI: 10.5185/amlett.2018.2044

Publication Date (Web): Jun 14, 2018

E-mail: larissambiental@yahoo.com.br


Bionanocomposites with properties similar to those of conventional polymers derived from petroleum have shown scientific and industrial interest. The current research discuss the effect of graphite nanosheets (GNS) addition on electrical, electromagnetic, and mechanical properties and also on morphological aspects of the natural polymer poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)/GNS nanocomposites and neat PHBV prepared by casting method. Nanocomposite of PHBV/1.00 wt% GNS showed good electrical conductivity values, extending the scope of application of these materials, such as in reflectors. One of the objectives of this study was to investigate the effect of different contents of GNS in neat PHBV using dynamic mechanical analysis (DMA), which showed that the addition of GNS in PHBV matrix improved the DMA properties. Transmission electron microscopy (TEM) shows good dispersion of GNS in the PHBV matrix with stacked and intercalated graphite layers and XPS confirmed the presence of carbon and oxygen in the graphite nanosheets surface.


Poly(hydroxybutyrate-co-hydroxyvalerate), graphite nanosheets, nanocomposites, electrical conductivity, reflectivity.

Previous issues

Celebrating 10th Years of Diamond Open Access Publishing in Advanced Materials  

Cerebral Oxygenation Studies Through Near Infrared Spectroscopy: A Review

Analysis of Fine Sulfoaluminate Cement by Strength and Thermogravimetric Analysis

Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models

Quantitative Detect of Fatigue of Membrane of Erythrocyte in Uniform Shear Field

Ecofriendly-developed Polyacrylic Acid-coated Magnetic Nanoparticles as Catalysts in Photo-fenton Processes

Evaluation of Drug Interactions with Medications Prescribed to Ambulatory Patients with Metabolic Syndrome in Urban Area

Fiber-reinforced Cementitious Composite: Sensitivity Analysis and Parameter Identification 

Evaluation of Drug Utilization Patterns Based on World Health Organization Drug use Indicators at Outpatients Clinics

Are Quantitatively Micro-machined Scaffolds Effective for Cell Technology?

Synthesis and Characterization of Gold Nanoparticles from Lobelia Nicotianifolia Leaf Extract and its Biological Activities

Advanced Oxidations of Tartrazine Azo-dye

Antifungal Activity of Salvia jordanii Against the Oral Thrush Caused by the Cosmopolitan Yeast Candida albicans among Elderly Diabetic Type 2 patients

Upcoming Congress

Knowledge Experience at Sea TM