N-Silylated Benzothiazolium Dye as a Coupling Agent for Polylactic Acid/Date Palm Fiber Bio-composites
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This work proposes a benzothiazole derivative bearing a silane moiety as a new coupling agent for polylactic acid (PLA) reinforced by date palm fibers (DPFs). The bio-composites are prepared by solution blending followed by melt compounding. From the samples produced, a complete characterization is performed including morphological, mechanical and thermal properties as a function of fiber content. The results show that the proposed fiber treatment is an easy and effective method to improve the interfacial properties and fiber dispersion leading to better material performance. For example, the addition of only 1 wt% of the dye–IPTMS to the bleached DPF not only improved the thermal stability of the biocomposites, but also led to a significant increase of the Young’s modulus at 7 wt% and higher torsion modulus up to 5 wt% (optimum value).
KeywordsBio-composite Poly(lactic acid) Date palm fiber Functionalization Solution blending Morphology Mechanical properties Thermal properties
This work was supported by MAScIR; Moroccan Foundation for Advanced Science, Innovation and Research, MESRSFC and CNRST, Morocco Grant No. 1970/15. The authors would like to thank Mr. Mehdi AitDahi for his fruitful technical support and assistance.
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