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Preparation of Piezo-Resistive Materials by Combination of PP, SEBS and Graphene

Departamento de Física de Polímeros, Elastómeros y Aplicaciones Energéticas, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
Author to whom correspondence should be addressed.
J. Compos. Sci. 2019, 3(2), 37;
Received: 30 January 2019 / Revised: 25 March 2019 / Accepted: 26 March 2019 / Published: 3 April 2019
(This article belongs to the Special Issue Recent Advances in Graphene-based Nanocomposites)
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The use of polyolefins in structural components requires the simultaneous improvement of stiffness and toughness of the matrix, whilst in the case of sensing components during operation, additional functions are needed such as electrical conductivity. However, providing various desired properties without impairing those intrinsic to the materials can be somewhat challenging. In this study we report the preparation of an isotactic polypropylene (iPP)/styrene–ethylene–butylene–styrene triblock copolymer (SEBS)/graphene system that combines enhanced mechanical properties with electrical conductivity. Blends were prepared by solution mixing (SoM) and solution/solid state mixing (SoM/SSM) formulation routes prior to melt processing. The nanocomposites were characterized by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) and the electrical and mechanical properties were evaluated. The materials prepared via the SoM/SSM route displayed good electrical conductivity while retaining the mechanical properties of iPP, making them attractive materials for low cost and high throughput structural components with sensing capacity. View Full-Text
Keywords: nanocomposites; polyolefin; elastomer; young’s modulus; toughness; electrical conductivity nanocomposites; polyolefin; elastomer; young’s modulus; toughness; electrical conductivity

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Seyler, H.; Gómez-Fatou, M.A.; Salavagione, H.J. Preparation of Piezo-Resistive Materials by Combination of PP, SEBS and Graphene. J. Compos. Sci. 2019, 3, 37.

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