Influence of Different Diss Fiber Treatments over the Properties of Poly Propylene/Recycled and Regenerated Low Density
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ORIGINAL PAPER
Influence of Different Diss Fiber Treatments over the Properties of Poly Propylene/Recycled and Regenerated Low Density Polyethylene Based Biocomposites Zohra Touati1 · Pedro L. de Hoyos‑Martinez2,3 · Naima Belhaneche‑Bensemra1 · Fatima Charrier‑ El Bouhtoury2
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This study aims the valorization of diss fibers for the production of biocomposites based on blends of recycled and regenerated low density polyethylene (rLDPE) and polypropylene (PP). Thus, the study of different diss fibers treatments was carried out to achieve the best performance of the final biocomposites. The polymeric blends were prepared by using PP/rLDPE (75/25) matrix and adding nano Si particles as reinforcement and maleic anhydride functionalized ethylene copolymer rubber/SiO2 (MAC/SiO2) as compatibilizer. Based on this formulation, different biocomposites were prepared by introducing untreated (UDF), thermally treated (TTDF) and chemically treated (CTDF) diss fibers. Several techniques were used for the characterization of the diss fibers and the final biocomposites. The effect of the fiber treatments was assessed by Fouriertransform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). On the other side, the biocomposites were tested for different parameters such as mechanical properties (tensile test) and thermal stability (thermogravimetric analysis and differential scanning calorimetry). Besides other techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM) were utilized to determine the morphology of the materials. The final results showed an improvement of the mechanical properties and a satisfactory interfacial adhesion after the introduction of the treated diss fiber into the polymeric matrix, especially in the case of the thermally treated ones. Furthermore, thermal stability was not compromised after the addition of the fibers. Keywords Recycled low density polyethylene · Polypropylene · Biocomposite · Diss fibers · Tensile properties
Introduction Currently, the growing pressure from society, the need of preserving natural resources as well as the rigor of laws adopted by developing countries is leading to the production of natural products based on renewable raw materials * Naima Belhaneche‑Bensemra [email protected] 1
Laboratoire des Sciences et Techniques de l’Environnement, Ecole Nationale Polytechnique, BP 182, El‑Harrach, Algiers, Algeria
2
IPREM‑Physics and Chemistry of Polymers Team (PCP), University of Pau and Pays de l’Adour, UMR CNRS 5254, IUT des Pays de l’Adour, 371 Rue de Ruisseau, 40004 Mont de Marsan, France
3
Chemical and Environmental Engineering Department, University of the Basque Country UPV/EHU, 20018 San Sebastián, Spain
[1, 2]. In this context, the introduction of natural plant-based fibers such as bamboo, hemp, diss, jute, sisal or kenaf in composites is gaining great importance [1, 3, 4]. Since they represent an alternative to replace solid wood. Be
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