This research aims to analyze the newly discovered cellulosic ber from the bark of Dittrichia viscosa, or Inula viscosa (IV), and evaluate the effects of permanganate and alkali chemical treatments on the physical properties to improve the interfacial bonding between Inula viscosa reinforced polymer composites. These permanganate and alkali treatments are both e cacious in helping in reducing hydrophilicity and eliminating impurities from the ber surface, which has been con rmed by scanning electron microscope (SEM) observation, thermogravimetric analysis (TGA), X-ray diffraction (XRD), and Fourier Transform Infrared Spectrometry (FTIR). Permanganate-treated IVFs have shown higher tensile strength and interfacial stress resistance (IFFS) than alkaline IVFs, and untreated IVFs by tensile and droplet tests. The different characteristics were studied and compared with other bark bers already available. It is estimated that the ber treatments will enable high-quality IVF-reinforced polymer composites for use in the industry.

This research designed to contribute to reduce the environmental impacts through the preparation of composites with recyclable materials to be used in different applications. To this end, composites have been developed based on jute recovered from packaging bags and polypropylene (PP) reclaimed from scraps obtained from the manufacture of PP yarns. The developed composites were then characterized. First of all, the optimum mass fraction was determined in order to achieve good mechanical performance. Several mass fractions (30%, 40%, 45%, 50%, 60%, and 70%) were experimented to find that the best characteristics were those of the biocomposite with 40% reinforcement (σ = 39.07 MPa, E = 4.60 GPa). With this ratio, jute-PP biocomposites were further developed with different jute architectures (Satin, Serge 2 Â 2, Taffeta). A structural study of the different jute fabric wastes was carried out to confirm whether they are suitable for use with a thermoplastic matrix (i.e., at a processing temperature of ≥200 C). Tensile and bending tests were carried out on these composites to find out the effect of the weave structure of the reinforcement.composite, jute fabrics, polypropylene (PP), recycling, wastes | INTRODUCTIONComposite materials are generally prepared from a mixture of two or more materials, which are held together by the matrix system called resin. For more than two decades, continuous research on composite materials has led to developing various mechanical properties and outstanding performance for a variety of utilizations. [1] Thus, fiberreinforced composites have come to be recognized as notable materials for high-performance applications in automotive, aerospace, marine, construction, and motorsport areas. [2] Certainly, synthetic fibers are one of the recognized

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