Effect of Alkaline Treatment and Graphene Oxide Coating on Thermal and Chemical Properties of Hemp (<i>Cannabis Sativa L</i>.) Fibers

The constant concern about environmental issues has led to the growth of researches eco-friendly materials. Among them, natural lignocellulosic fibers have already presented their potential in place petroleum-based synthetics. However, a relevant number studies still deal with disadvantages, such as weak bond on matrices for composite performance and limited thermal performance. Thus, present study analyzes combination alkaline treatment graphene oxide coating hemp fibers, an NLF applied several products but few investigations engineering applications. were thermally characterized thermogravimetric analysis (TGA) differential scanning calorimetry (DSC). GO-coating was evidenced by Fourier transform infrared spectroscopy (FTIR) Raman spectroscopy. Changes crystallinity X-ray diffraction (XRD). It observed increase 4% 11% after treatment. stability rose 13°C 10 wt% NaOH-treated GO-coated change 3.5°C detected glass transition temperature. effect also changes spectra FTIR curves visually electron microscope (SEM).