Influence of Carbon Nanotubes Concentration on Mechanical and Electrical Properties of Poly(styrene-co-acrylonitrile) Composite Yarns Electrospun

Autor:	Hugo Martínez-Gutiérrez, Rubén Caro-Briones, Héctor Baez-Medina, José Manuel del Río, M. Corea, Eduardo San Martín-Martínez, Irlanda Grisel Cruz-Reyes, Blanca Estela García-Pérez
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Nanotube Materials science Polymers and Plastics Composite number Organic chemistry General Chemistry Carbon nanotube mechanical properties artificial muscle Article polymeric yarns law.invention Styrene nanotubes chemistry.chemical_compound QD241-441 chemistry law electrical properties polymer composite Artificial muscle Acrylonitrile Composite material Dispersion (chemistry) Elastic modulus
Zdroj:	Polymers Volume 13 Issue 21 Polymers, Vol 13, Iss 3655, p 3655 (2021)
ISSN:	2073-4360
DOI:	10.3390/polym13213655
Popis:	In this work, the influence of carbon nanotubes (CNTs) content on the mechanical and electrical properties of four series of polymeric matrix were made and their cytotoxicity on cells was evaluated to consider their use as a possible artificial muscle. For that, polymer composite yarns were electrospun using polymeric solutions at 10 wt.%. of poly(styrene-co-acrylonitrile) P(S:AN) and P(S:AN-acrylic acid) P(S:AN-AA) at several monomeric concentrations, namely 0:100, 20:80, 40:60, 50:50 (wt.%:wt.%), and 1 wt.% of AA. Carbon nanotubes (CNTs) were added to the polymeric solutions at two concentrations, 0.5 and 1.0 wt.%. PMCs yarns were collected using a blade collector. Mechanical and electrical properties of polymeric yarns indicated a dependence of CNTs content into yarns. Three areas could be found in fibers: CNTs bundles zones, distributed and aligned CNTs zones, and polymer-only zones. PMCs yarns with 0.5 wt.% CNTs concentration were found with a homogenous nanotube dispersion and axial alignment in polymeric yarn, ensuring load transfer on the polymeric matrix to CNTs, increasing the elastic modulus up to 27 MPa, and a maximum electrical current of 1.8 mA due to a good polymer–nanotube interaction.
Databáze:	OpenAIRE
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