Papers by Keyword: Sisal Fiber

Abstract: This review paper focuses on the major factors of deterioration, specifically rutting, stripping, and moisture effects, which are key factors affecting road pavements globally. Stressing the need to tackle these distresses, the study aims to improve the performance of asphaltic courses via advancing bio-based reinforcement materials, especially sisal fiber. The paper tries to analyze the mechanism of rutting in asphalt mixtures with a special reference to sisal fibers as an agent to increase resistance to permanent deformation. However, fiber reinforcement with the asphalt mixtures are also briefly described in the subject with the favorable effects of tensile strength, fatigue strength and crack propagation strength. The review further focuses on the ability of fiber reinforcement to enhance pavement service life, address pavement deterioration issues, and improving the service life of road pavements.

Abstract: This study investigates the mechanical properties, water absorption and microstructural analysis of hybrid composites reinforced with Hemp fiber (HF) and Sisal fiber (SF) combined with Silicon Carbide (SiC) particles in epoxy composites. The fibers were treated with 5% NaOH solution for varying durations to enhance their properties. Composite laminates were fabricated using compression molding with different weight fractions of fibers (30 wt%) and SiC particles. The mechanical behaviour of the composites was evaluated through tensile, flexural, and water absorption tests following ASTM standards. The results shows that hybridization with hemp and sisal fibers improves the properties of epoxy composites, with increased hemp fiber content leading to enhanced mechanical performance.These included a tensile strength of 57.82 MPa, flexural strength of 94.7 MPa. The water absorption dipped in 120 hours of immersion in water, with the HFSF/SiC-5 showing the highest water absorption of 6%.The SEM images revealed a homogeneous distribution, fiber pullouts, voids of fibers and filler materials confirmed the presence in the composites.

Abstract: The aim of this study of mechanical behavior of these composites under tensile and impact loading and their applicability to real applications is the goal. Group 1 The ultimate tensile strength of Ficus religiosa stem fiber is 11.939[N/mm²]. Group 2 ultimate strength of sisal fiber is 9.006 [N/mm²]. As indicated by the results, sisal fibers significantly enhanced the impact resistance and tensile strength of composite materials, therefore they are viable to apply in various engineering application. displayed promise as an inherent composite with limited mechanical potential, as indicated by its good tensile and impact strength.

Abstract: This study investigates the water absorption characteristics of epoxy-based hybrid composites reinforced with natural sisal fibers and synthetic glass fibers. Four different stacking sequences of fiber layers: SSSS (four sisal layers), SSSG (three sisal layers and one glass layer), SSGG (two sisal layers and two glass layers), and SGGG (one sisal layer and three glass layers), were fabricated to assess their influence on moisture absorption properties. The water absorption percentages determined during testing of the compositions are averaged, showing a trend of decreased water absorption with an increase in the number of glass fiber layers. The SGGG configuration exhibits the lowest water absorption at 3.18%, while the SSSS configuration has the highest at 6.63%. This trend highlights the absorbent nature of sisal fibers and confirms the role of glass fibers in enhancing water resistance. Hybrid fiber reinforcements can therefore improve not only the mechanical properties of epoxy composites but also make them more environmentally friendly. Such materials provide a viable alternative to conventional plastics. Additionally, understanding the effect of stacking sequences on moisture absorption may enable future composite designs tailored for specific environmental conditions.

Abstract: This study examines the impact of Al₂O₃ particles on composites made of sisal and epoxy. A unique combination of hand lay-up and compression molding procedures are used to fabricate the Sisal/Al₂O₃/epoxy hybrid composites, with different weight percentages of Al₂O₃ particles of 0%, 1%, 2%, and 3%. The produced sisal/Al₂O₃/epoxy hybrid composites' flexural, tensile, and compressive properties are then correlated with water absorption studies. The sisal/epoxy composites have undoubtedly been affected by the Al₂O₃ particles, which have improved their mechanical and physical properties. Compared to other composite samples, the sisal/2wt.%Al₂O₃/epoxy hybrid composites show superior flexural, tensile, compressive, and water absorption resistances. Therefore, the optimal combination of hybrid sisal/Al₂O₃/epoxy composites can prominently improve the properties, making them a viable alternative for a variety of industrial applications.

Abstract: Fibre reinforced polymer composites are employed instead of metal and wood because they are stronger, more lightweight, have a favourable strength to weight ratio, and are noncorrosive. In the current research, sisal, carbon fibre, and industrial waste tea leaf fibre (WTLF) reinforced hybrid epoxy composites are being examined for their chemical, mechanical and acoustical properties with experimental study. The sisal and WTLF were chemically treated with 5% sodium hydroxide (NaOH) solution. By modifying the weight percentage of sisal and WTLF with a structure of 40 weight percent fibre and 60 weight percent matrix, five different compositions of natural fibre reinforced hybrid composites were fabricated using an automatic compression moulding technique. As per the ASTM standard the manufactured hybrid composites are tested for mechanical, chemical and acoustic characteristics. According to the experimental findings, sisal fibre with a 25 wt% and WTLF with a 5 wt% demonstrated superior mechanical properties, while these materials also demonstrated an excellent acoustic absorption coefficient (AAC) of 0.62 between the frequency range of 2000 to 6300 Hz. The morphology of failure samples revealed the matrix micro crack, void formation, fiber pullout and layers of fractured fibers which are being examined using Scanning Electron Microscopy (SEM). The superior bonding between fibre and matrix was seen in the FTIR study of 5% alkali treated composites.

Abstract: In this paper the effect of adding natural particles (pomegranate PSP and coconut shell particles CSP ) on unsaturated polyester matrix UPE reinforced with natural sisal fibers studied, some mechanical properties were performed. The natural particle percentage selected to be (5, 10, 15, 20) wt. %, while the percentage of the sisal fibers was constant (2wt. %). The main purpose was to improve UPE properties to be use in structural applications. Chemical treatment was perform on all the reinforcement materials used before the hybrid composite synthesis. Using particles size distribution (PSD) it was found that (2956.9 and 2961.6) nm were the size of PSP and CSP, respectively. Then, samples were prepared in the laboratory at room temperature using Hand-layup technique. Tests as Flexural strength, flexural modulus, impact strength, max shear strength and surface roughness were applied on the composite samples. Results were as follows: a clear improvement in the mechanical properties of the UPE reinforced with sisal fibers. As for the fiber-particle reinforced polyester (UPE) ,the results were an increase in the flexural modulus by 5wt.% when adding coconut particle, while it decreased when adding pomegranate particle at same ratio. As for the flexural strength when the adding particles ratio increases, it decreases in the case of pomegranate particles addition while increases in the coconut particles addition. Interestingly, impact strength value increased at 5wt.% for both particle addition, while for further ratio there was a value reduction. An increase in max shear strength was also found as the highest value was in the pomegranate matrix at 5wt.%, while it was in the coconut matrix at 20wt.%. Finally, that the surface roughness value gradually increases with the increase additive ratio. Also, SEM

Abstract: The usage of reinforcing fibers extracted from nature is increasing in the present decade due to increasing the demand for biodegradability and environmentally friendly materials. In this paper, biodegradable sisal fiber and corn starch powder mixed thermoset and thermoplastic composite are prepared and tested for Young’s modulus. The effect of sisal fiber weight fraction on the Young’s modulus is identified at constant content of corn starch powder. Later, using Micromechanics approach and Finite Element Method simulation studies are performed to estimate transverse Modulus, Shear modulus, major and minor Poisson’s ratio of the sisal and starch based polymer composites. It is found that the composites prepared with sisal fiber and corn starch powder are a promising replacement for plastic reinforced composite to promote the biodegradability, especially under high weight fraction of sisal fiber

Abstract: In casting temperature Laquan silica sol crust process suitable for the production of surface roughness is small, precision high accuracy in size, and has become the mainstream technology has been widely used. Silicon sol casting with high dimensional accuracy, good surface quality and other advantages, is a widely used less advanced technology without cutting, using silica sol casting method can save a lot of machine equipment and processing time, but also greatly saves metal materials. Hard fiber sisal has high tensile strength, resistance to seawater immersion, friction resistance, flexibility and other characteristics, can be used for fishing, sailing, mining, transportation rope, canvas, waterproof cloth and other raw materials. The most commonly used binder in investment casting is silica gel solution (abbreviated as silica sol), such as ethyl silicate hydrolysate, water glass and silica sol.

Abstract: Sisal, carbon, and poly-methyl methacrylate (PMMA) are the component materials that have been developed for the biomedical composite. However, characterization of the mechanical properties of the composites affected by some modified treatments is still opened for discussion. Sisal/poly-methyl methacrylate (PMMA) and sisal/carbon/PMMA composites with 30% fiber content and 6 mm fiber length were manufactured using a cold press molding at room temperature for about 60 min curing time. Tensile and bending properties of the composites were investigated by the influence of alkalization, the addition of maleic-anhydride-grafted polypropylene (MAPP) and hybridization of sisal and carbon fibers. The results indicated that the addition of MAPP (3, 5 and 10 wt. %) increases the tensile and flexural strengths of sisal/PMMA composites which are higher than the composites reinforced with alkali-treated and untreated sisal fibers. The addition of 5 % MAPP resulted in more effective improvement in mechanical properties compared to the effect of alkalization. However, a significant enhancement of tensile properties was shown by the hybridization effect of sisal and carbon with a ratio of 1:1 and 1:2 in sisal/carbon/PMMA composites. Scanning electron microscopy (SEM) of tensile fracture surfaces confirmed the presence of a functional relationship between the high mechanical strength of the composites with excellent adhesion between sisal fiber and PMMA by introducing 5% MAPP. Relatively homogeneous fiber dispersion in the matrix either sisal fibers or mixed sisal and carbon fibers within the PMMA matrix with sisal/carbon ratio of 1:2 have also contributed to the improvement of the mechanical strength. The use of alkali-treated sisal and HNO3-treated carbon fibers had promoted a remarkable increase in tensile strength of the sisal/carbon/PMMA hybrid composites.