EVA nano 1

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2 - Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT) Roubaix, France. 2-3x. Polylactide (PLA) is currently receiving considerable attention for ...
INTERREG efface les frontières Union Européenne – Fonds Européen de Développement Régional

PLA - expanded graphite (nano)composites for technical applications Marius Murariu, Leila Bonnaud, Anne–Laure Dechief, Antoine Gallos1, Awa Doumbia2, Serge Bourbigot1, Eric Devaux2 and Philippe Dubois

Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials & Polymers (CIRMAP), Materia Nova Research Center & University of Mons, 20 Place du Parc, 7000-Mons, Belgium 1 - Ecole Nationale Supérieure de Chimie de Lille (ENSCL), Villeneuve d’Ascq Cedex, France 2 - Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT) Roubaix, France

Introduction

Extrusion of films based on PLA-EG

Polylactide (PLA) is currently receiving considerable attention for conventional utilization such as biodegradable packaging materials, as well as production of fibres. With a tremendous increase in production capacity, recently PLA was considered as interesting for engineering applications (electronic and electrical devices, mechanical and automotive parts, etc.), but it is required the tailoring of its properties to reach the end-user demands. The polymer nanocomposites filled with carbonaceous nanofillers were proved to exhibit a remarkable balance of performances (mechanical, fire resistance, electrical conductivity, etc.). In this regard and to add graphite's properties to a biodegradable polymer of high interest like PLA, the aim of this communication is to present selected results concerning the realization and performances of PLA-expanded graphite (EG) (nano)composites, PLA grades obtained using a nanofiller considered as alternative to both carbon nanotubes and clays.

Graphite layers NANOLAC

(CEN, 2009; 87(9):p.14)

Materials and experimental procedure PLA was kindly supplied by NatureWorks LLC : number average molecular weight, Mn(PLA) = 88500, index of polydispersity, Mw/Mn=1.8, D isomer content: