Ethylene‐vinyl Acetate Thermoplastic Copolymers Filled with Multiwall Carbon Nanotubes: Effect of Hydrothermal Ageing on Mechanical, Thermal, and Electrical Properties. Issue 1 (10th May 2013)

• Record Type: Journal Article
• Authors: Starkova, Olesja; Buschhorn, Samuel T.; de Almeida Prado, Luis Antônio Sanchez; Pötschke, Petra; Edelmann, Matthias; Schulte, Karl
• Is Part Of: Macromolecular materials and engineering. Volume 299:Issue 1(2014:Jan.)
• Page Start: 41
• Page End: 50
• Publication Date: 2013-05-10
• Subjects: Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1002/mame.201200422
• Languages: English
• ISSNs: 1438-7492

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <sec id="mame201200422-sec-0001" sec-type="section"> <p>A range of properties of two commercial thermoplastic ethylene‐vinyl acetate (EVA) copolymers, Elvax 420 and Elvax 450, neat and as melt‐mixed composite filled with 15 wt.‐% of multi‐wall carbon nanotubes (MWCNTs), are studied in the "as produced" state and after hydrothermal ageing. Addition of MWCNTs into the neat copolymers introduces the functionality of electrical conductivity and significantly improves their mechanical properties, while thermal characteristics are slightly affected by the presence of carbon nanotubes. A remarkable increase of the elastic modulus (150%) and stress at failure (50%) in stress–strain experiments as well as creep resistance (40%) of the nanocomposites in comparison to the neat copolymers is achieved. Hydrothermal ageing results in deterioration of the elastic and ultimate properties of the materials, however its severe effect is less pronounced in the case of nanocomposites.<inline-graphic xlink:href="ark:/27927/pgg3zzbfcfv" content-type="mame201200422-gra-0001" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </sec> </abstract>