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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of Carbon Nanotubes (CNT) Functionalization and Maleic Anhydride-Grafted Poly(trimethylene terephthalate) (PTT-g-MA) on the Preparation of Antistatic Packages of PTT/CNT Nanocomposites

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Author(s):
Braga, Natalia Ferreira [1] ; Zaggo, Henrique Morales [1] ; Montagna, Larissa Stieven [1] ; Passador, Fabio Roberto [1]
Total Authors: 4
Affiliation:
[1] Fed Univ Sao Paulo UNIFESP, Dept Sci & Technol, Polymer & Biopolymer Technol Lab TecPBio, 330 Talim, BR-12231280 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF COMPOSITES SCIENCE; v. 4, n. 2 JUN 2020.
Web of Science Citations: 2
Abstract

Electronic devices require the use of antistatic packing to prevent electrostatic discharge during their storage or transport. Poly (trimethylene terephthalate) (PTT) is a polyester with excellent properties and can be a good candidate for this application. To make this insulating polymer an extrinsic conductor, carbon nanotubes (CNT) can be added to reduce the electrical resistivity of the nanocomposites. In order to facilitate the CNT distribution on polymeric matrix, it was proposed a chemical functionalization using nitric acid for the creation of functional groups on its surface. Moreover, the PTT matrix was modified with a compatibilizer agent based on maleic anhydride grafted PTT (PTT-g-MA), to improve interfacial adhesion between the nanofiller and matrix. In this work, nanocomposites based on PTT/PTT-g-MA/CNT were prepared by extrusion process, with 0.5 wt% and 1.0 wt% of CNT and functionalized CNT. CNT was characterized by stability dispersion in water, Raman spectroscopy, FTIR and XPS analysis, which prove the success of functionalization. The nanocomposites were evaluated by thermal analysis, tensile tests, electrical conductivity, and morphological analysis. The CNT functionalization and the addition of PTT-g-MA increased the dispersion and distribution of CNT in the PTT matrix. The electrical properties show that this material can be used as an antistatic packaging. (AU)

FAPESP's process: 18/05415-8 - Development of polytrimethylene terephthalate/carbon nanotubes nanocomposites for antistatic packaging
Grantee:Henrique Morales Zaggo
Support type: Scholarships in Brazil - Scientific Initiation