Topic
SISAL
About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the utilization of natural sisal fibers in ultra-high performance concrete (UHPC) was investigated, and the results indicated that the flowability of the fresh UHPC mixture decreased with the increase of length and volume fraction of sisal fiber.
64 citations
TL;DR: In this article, microcrystalline cellulose fibers (MCFs) derived from sisal were treated with a hyperbranched aromatic polyamide (HBAP), and the modified sisal fibers were used to produce composites with epoxy resins.
Abstract: In this study, microcrystalline cellulose fibers (MCFs) derived from sisal were treated with a hyperbranched aromatic polyamide (HBAP). The modified sisal fibers were used to produce composites with epoxy resins. Firstly the MCFs were treated with a silane coupling agent, then a HBAP was grown on the modified surface. The HBAP-MCFs were used to reinforce epoxy resins. The HBAP-MCF/epoxy composites were studied by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), dynamic mechanical analysis (DMA), and mechanical properties analysis. The results show that the HBAP-MCFs enhanced the thermal and mechanical properties of the epoxy resin. For instance, the impact strength, tensile strength, Young's modulus and toughness of the HBAP-MCF/epoxy composites with 2.0 wt% HBAP-MCFs were 32.1 kJ m−2, 59.4 MPa, 695 MPa, and 4.37 MJ m−3. These values represent improvements of 83.4%, 34.7%, 25%, and 178.3%, respectively, compared to a neat epoxy resin. Moreover, the addition of HBAP-MCFs produced composites with higher thermal degradation temperatures and glass transition temperatures. The HBAP-MCF swere effective in improving the thermal and mechanical properties due to a strong affinity between the fillers and the matrix.
64 citations
TL;DR: In this paper, the mechanical properties of these composites have been investigated with reference to the effects of orientation and composition of fibers in them, and it has been observed that the composites contining longitudinally oriented fibers exhibit better mechanical properties than those with randomly oriented ones.
Abstract: Hybrid composites of low density polyethylene (LDPE) reinforced with intimately mixed short sisal and glass fibers were prepared by solution mixing technique. The mechanical properties of these composites have been investigated with reference to the effects of orientation and composition of fibers in them. It has been observed that the composites contining longitudinally oriented fibers exhibit better mechanical properties than those with randomly oriented ones. Also it is seen that the mechanical properties increase with increase in the volume fraction of glass fibers in the hybrid composites. The effict of chemical modification of sisal fibers on the properties of 50:50 sisal/glass fiber composites has also been studied. The hybrid effect was calculated by the additive rule of hybrid mixtures using the mechanical properties of individual composites. A positive hybrid effect was echibited by the composites for all the mechanical properties except for elongation at break.
64 citations
TL;DR: In this article, a study of the mechanical, thermal and morphological behavior of blends of polypropylene filled with wood flour and sisal fiber (PP/wood flour, PP/sisal fibre), subjected to different doses of gamma irradiation (10, 25, 30, 50, 60 and 70 kGy), at room temperature and in the presence of oxygen.
63 citations
TL;DR: The results showed that the incorporation of sisal fibers in the PP and PLA matrix enhances the tensile modulus and percentage crystallinity of the composites and the thermal stability of the PP-based composites was not affected by the repeated recycling process.
63 citations