Evaluation of mechanical, thermal and electric properties of hybrid nanocomposites epoxy/MWCNT/mineral fillers

• Grant number: 14/16299-8
• Support Opportunities: Scholarships in Brazil - Master
• Effective date (Start): November 01, 2014
• Effective date (End): July 31, 2016
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Luiz Antonio Pessan
• Grantee: Eduardo Henrique Backes
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated scholarship(s): 15/02172-9 - Evaluation of mechanical, thermal and electrical properties of hybrid EPOXY/MWCNT/MINERAL fillers nanocomposites, BE.EP.MS

Abstract

Polymer nanocomposites are composite materials where the matrix is a polymer and dispersed phase has at least one of its dimensions in the nanometer range. In this study, Multi Walled Carbon Nanotubes (MWCNT) will be used as dispersed phase in epoxy matrix. Due to the large aspect ratio of MWCNT materials with excellent mechanical and electrical properties are possible to be obtained. There is improve in mechanical, electrical and thermic properties with less than 1 wt% of MWCNT. However, to produce polymer nanocomposites epoxy/MWCNT with low cost and good electrical conductivity, it is necessary to reduce the electrical percolation threshold and facilitate their processing. Recent studies in epoxy resin nanocomposites obtained with mineral fillers, such as montmorillonite, shows that mineral fillers improve dispersion of MWCNT in epoxy matrix, reducing the electrical percolation threshold. This research project aims to obtain and study the mechanical, thermal and electrical properties of hybrid nanocomposites epoxy/MWCNT/mineral fillers. The hybrid epoxy matrix nanocomposites are obtained by in situ polymerization assisted by sonication and will be evaluated the influence of the addition of mineral fillers with three different geometry of particles: montmorillonite, sepiolite, and calcium carbonate on properties of the nanocomposite epoxy/MWCNT. (AU)

Scientific publications

(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)

EDUARDO HENRIQUE BACKES; TARCÍSIO SANSON SENE; FABIO ROBERTO PASSADOR; LUIZ ANTONIO PESSAN. Electrical, Thermal and Mechanical Properties of Epoxy/CNT/Calcium Carbonate Nanocomposites. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 21, n. 1, 2017-12-04. (14/16299-8)