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Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 1.182 SNIP: 0.125 CiteScore™: 0.23

ISSN Druckformat: 2152-2057
ISSN Online: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.2018024680
pages 163-187

REPROCESSING OF COMPOSITES BASED ON POLYPROPYLENE LOADED WITH OLIVE HUSK FLOUR

Salem Krim
Laboratoire des Matériaux Polymères Avancés, Département de Génie des Procédés, Université Abderrahmane MIRA, Route de Targa-Ouzemmour, Béjaïa 06000, Algérie
Amar Boukerrou
Laboratoire des Matériaux Polymères Avancés, Département de Génie des Procédés, Université Abderrahmane MIRA, Route de Targa-Ouzemmour, Béjaïa 06000, Algérie
Hocine Djidjelli
Laboratoire des Matériaux Polymères Avancés, Département de Génie des Procédés, Université Abderrahmane MIRA, Route de Targa-Ouzemmour, Béjaïa 06000, Algérie
Johnny Beaugrand
INRA (French National Institute for Agricultural Research) UMR FARE 614 Fractionation of Agricultural Resources and Environment, 2 Esplanade Roland Garros, 51686 Reims cedex 2, France
Dalila Hammiche
Laboratoire des Matériaux Polymères Avancés, Département de Génie des Procédés, Université Abderrahmane MIRA, Route de Targa-Ouzemmour, Béjaïa 06000, Algérie

ABSTRAKT

The growing interest in the preservation of our environment stimulates solutions for developing less impacting materials. Thus, the development of composites from renewable resources and recyclable end-of-life resources seems an interesting alternative. This motivated the reason to focus our work on the use of agricultural by-products and waste recycling. Our purpose is the reprocessing of composites based on polypropylene (PP) reinforced with olive husk flour (OHF) at various load rates with adding PP-g-MA as a compatibilizer by six cycles of extrusion. The Young modulus of the composites has slightly increased with the rise of the OHF rate and the number of cycles. An FTIR analysis shows two types of degradation after reprocessing: thermal degradation characterized by a splitting of chains and thermal oxidation justified by the increase in the carbonyl index even when the intensity of the absorption peak has been noticed at 1690–1640 cm–1 referring to the vinyl groups after the 6th cycle. Moreover, the TGA analysis showed a better thermal stability of the composites after the 6th cycle compared to the virgin PP. The rate of crystallization increases with the number of extrusion cycle.


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