“…As given by Equation , the crystallinity index appears to be very high, in the order of 92%. This appears to be higher than in typical textile fibers, such as jute (59%) (Hossain et al 2022), sisal (72%) (Vasu et al 2021), and even hemp, which can offer even 80% crystallinity (Abidi et al 2010). This is also seen in the more relevant case of short fibers, such as Tamarindus indica (55%) (Vinod et al 2022), or Agave americana (53%) (Canteri et al 2019).…”
A number of natural fibers are being proposed for use in composite materials, especially those extracted from local plants, especially those able to grow spontaneously as they are cost‐efficient and have unexplored potential. Sansevieria cylindrica, within the Asparagaceae (previously Agavacae) family, has recently been considered for application in polymer and rubber matrix composites. However, its characterization and even the sorting out of technical fiber from the stem remains scarce, with little available data, as is often the case when the fabrication of textiles is not involved. In this study, Sansevieria cylindrica fibers were separated down to the dimensions of a filament at an 8–15 micron diameter from the stem of the plant, then characterized physically and chemically, using Fourier transform infrared spectroscopy (FTIR), morphologically by scanning electron microscopy (SEM), as well as their thermal degradation, by thermogravimetric analysis (TGA). Their crystallinity surface roughness was measured by X‐ray diffraction (XRD) and atomic force microscopy (AFM), respectively. The results indicate over 70% cellulose fibers content with a very high crystallinity (92%) and small crystallite size (1.45 nm), which suggests a low water absorption, with thermal degradation peaking at 294°C. Despite this, due to the significant porosity of the cellular structure, the density of 1.06 g cm−3 is quite low for a mainly cellulose fiber. Roughness measurements indicate that the porosities and foamy structure result in a highly negative skewness (−3.953), in the presence of deep valleys, which may contribute to an effective relation with a covering resin.
“…As given by Equation , the crystallinity index appears to be very high, in the order of 92%. This appears to be higher than in typical textile fibers, such as jute (59%) (Hossain et al 2022), sisal (72%) (Vasu et al 2021), and even hemp, which can offer even 80% crystallinity (Abidi et al 2010). This is also seen in the more relevant case of short fibers, such as Tamarindus indica (55%) (Vinod et al 2022), or Agave americana (53%) (Canteri et al 2019).…”
A number of natural fibers are being proposed for use in composite materials, especially those extracted from local plants, especially those able to grow spontaneously as they are cost‐efficient and have unexplored potential. Sansevieria cylindrica, within the Asparagaceae (previously Agavacae) family, has recently been considered for application in polymer and rubber matrix composites. However, its characterization and even the sorting out of technical fiber from the stem remains scarce, with little available data, as is often the case when the fabrication of textiles is not involved. In this study, Sansevieria cylindrica fibers were separated down to the dimensions of a filament at an 8–15 micron diameter from the stem of the plant, then characterized physically and chemically, using Fourier transform infrared spectroscopy (FTIR), morphologically by scanning electron microscopy (SEM), as well as their thermal degradation, by thermogravimetric analysis (TGA). Their crystallinity surface roughness was measured by X‐ray diffraction (XRD) and atomic force microscopy (AFM), respectively. The results indicate over 70% cellulose fibers content with a very high crystallinity (92%) and small crystallite size (1.45 nm), which suggests a low water absorption, with thermal degradation peaking at 294°C. Despite this, due to the significant porosity of the cellular structure, the density of 1.06 g cm−3 is quite low for a mainly cellulose fiber. Roughness measurements indicate that the porosities and foamy structure result in a highly negative skewness (−3.953), in the presence of deep valleys, which may contribute to an effective relation with a covering resin.
“…This peak is attributed to the stretching vibration of O–H (hydroxyl groups), indicating the presence of cellulose [ 16 ]. The subsequent transmittance peak at wavenumbers 2914 cm −1 and 2921 cm −1 corresponds to the asymmetric stretching and vibration of CH 2 groups, indicating the presence of hemicellulose [ 32 ]. The following transmittance peaks observed at wavenumbers 1634 cm −1 and 1623 cm −1 , respectively for both the UT-FMB and T-FMB is an indicative for the stretching vibration of C C bonds, which signifies the presence of lignin [ 24 ].…”
“…Peaks in cellulose and hemicellulose concentration at the fingerprint region from 1100 to 1200 cm −1 were ascribed to C–O–C vibration. The peak at 1033 cm −1 was thought to be caused by C–OH vibration, while 896 cm −1 was related to -glycoside linkage [ 20 , 26 , 27 ]. The FTIR peak patterns confirmed this fiber's high cellulose content [ 21 ].…”
Section: Resultsmentioning
confidence: 99%
“…As a result, based on their chemical makeup, natural fibers' deterioration trend may be estimated. The examined fiber had higher hemicellulose than the other fibers so it sustained up to 477 ͦ C which was comparatively lower than the jackfruit fiber [ 20 ]. Fig.…”
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