Pineapple Fiber Research Articles

Analysis of mechanical properties of pineapple leaf/glass fiber-vinyl ester hybrid composite

Pineapple and glass fibers reinforced vinyl ester hybrid composites were prepared in both the dispersed and skin-core types at 40 wt% using hand lay-up technique, and their mechanical properties were studied based on the content of glass fibers (5, 11, 16, and 19 wt%). The effects of the glass fiber addition on mechanical properties were discussed with varying the fiber content by keeping the overall fiber content as constant. The fractographic studies on the fracture surface of tested composite specimens were examined by using scanning electron microscopy. The results were compared with the neat resin samples and pineapple-alone composites. The results show that the mechanical properties of composites increased with an increase in glass fiber addition. Hybrid composite having the pineapple fiber of 21 wt% and the glass fiber 19 wt% show the maximum level of mechanical properties in both types of hybrid composites. The dispersed type hybrid composites show inferior performance than the skin-core type hybrid composites. The theoretical model was used to predict and compare the experimental results and was also found to be in good agreement.

Mechanical characterization of alkaline treated Ananus Comosus and Musa Sepientum fibers reinforced epoxy hybrid composites

In this present investigation, pineapple and banana fibers were selected as reinforcement and extracted from Ananus Comosus and Musa Sepientum plants respectively. Pineapple and banana fibers are treated with 5% NaOH solution to remove non-cellulosic elements such as hemicellulose, lignin and waxy elements. Five different hybrid composites were designated as function of weight fraction of fibers and fabricated by compression moulding techniques. Mechanical properties such as tensile strength, flexural strength, impact strength and hardness are conducted as per ASTM standards. It was observed that, the composite with 20 wt% treated pineapple and 10 wt% treated banana could display higher mechanical properties than other weight fraction. The hybrid composite with more than or less than 20 wt% of pineapple fiber experiences fiber pullout, fiber breakage, micro cracks at interface and non-uniform distribution of fiber and matrix resulting in poor mechanical properties.

Investigating mechanical strength of luffa and pineapple fibre reinforced polymer composite

The need for low-weight and elevated-strength composites naturally available fibres has gone up significantly. Naturally accessible fibres have become increasingly popular owing to its high accessibility, light weight, and flexibility to be recycled, as opposed to man - made fibers. Organic leafy fibres have been simple to harvest out from crop, and they have greater strength, better efficiency, lower harmful effects, and superior insulating properties than artificial fiber composites. Organic plant fibres composite has minimal processing attrition, is inexpensive, and function well in industrial applications, making them preferable reinforcement materials for the polymer-based composites. In the current investigation, an effort is accomplished to examine the impact of hybrid fibres containing luffa and pineapple fibres in epoxy-based polymer composite on their mechanical strength including tensile, compressive, flexural, and impact characteristics. The total fibre content was fixed as 40% and the hybridization was varied to determine their effect on the mechanical strength of the epoxy composite. The results proved that the luff and pineapple fibre ratio of 3:1 has produced the impressive results comparing to other hybrid combinations.

Mechanical and moisture absorption behaviour of Woven pineapple leaf phenol formaldehyde composites

Pineapple leaf fibre (PALF) has been proved for its cellulose rich content, cost effectiveness, and its availability, which has the reinforcement of polymer potential. In our study, composite specimens were prepared with woven pineapple fibre as reinforcement and phenol formaldehyde as matrix. Samples were ready with fibre content 30%, 35%, 40%, and 50%. The above said specimens were implies to mechanical test to find out its properties. In finding of the results it is understandable that the Mechanical properties has been increased while adding the fibre content up to 40% and drop it off. This happens due to the poor bonding properties between the fibre and the matrix. While increasing the fibre content to above certain limit, Instead of fibre dispersion the congregation takes place, Due to the obstacles caused for the resin to enter in to the two adjacent fibres the wettability turns into poor. Also, all the samples were subjected to water absorption tests and the results showed 40% fibre showed better properties. The microstructure of the composites was studied.

Characterization of Irradiated Wood Plastic Composites (WPCs) Consumer Product

This research paper emphasizes the characterization of irradiated wood plastic composites for consumer product. Throughout this research, it is precisely conducted to observe the mechanical and physical properties of WPCs and their ability to fit in the market globally. The study also carried out to promote WPCs product that came naturally from renewable sources. WPCs in this research can be defined as mixture of wood that can be replaced with pineapple fiber in a polymer matrix. Composite that used in this research mainly consists of 40% polyethylene (PE), 50 % pineapple fiber and the rest is coupling agent that enhance the WPCs mixture. After undergoes several processes such making the raw sample of WPCs mixture, the WPCs were then irradiated under required dose levels of 0.5, 1, 1.5, 2, 2.5 kGy with the aid of the Gamma Cell Irradiator. Soon after, the irradiated WPCs then undergoes characterization process using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDX). Diagnosis on the morphology of WPCs found that there was significant difference between the radiated and irradiated surfaces.

EXPERIMENTAL STUDY OF THE STRENGTH OF COMPOSITE MATERIAL MADE OF CARBON FIBRES WITH A MIXTURE OF KEVLAR FIBRES AND PINEAPPLE FIBRES AS AN ADVANCE MATERIAL FOR MINE HUNTER HULL MATERIAL

The advantages of sandwich material compared to metal materials are its lighter weight and low magnetism, making it suitable for use as minehunting ship hull material. In this study, the authors will make a carbon fiber sandwich with a mixture of Kevlar fiber and pineapple sisal fiber compared to GRP (Glass Reinforced Polyester). This research uses the technique of making Vacuum Assessment Resin Infusion (VARI). Strength test with tensile test, impact test and hardness test using ASTM standard. Based on the test results, carbon composite with a mixture of pineapple fiber has a maximum stress of 70,8008 N/mm2 which can be used as a hull material with a maximum length of 24m. While the carbon sandwich with kevlar has a maximum stress of 382,408N/mm2, GRP has a maximum stress of 127.24N/mm2. Carbon fiber material with kevlar can be used for boats longer than 24m.

Novel pineapple leaf fibre composites coating with antimicrobial compound as a potential food packaging

AbstractBiodegradable packaging coated with antimicrobial compounds has emerged as a new type of food packaging with potential to enhance food safety, extend shelf life and minimize plastic pollution. We have developed a polylactic acid (PLA) composite pineapple leaf fibre (PALF) biopolymer to fulfil the high demand of biodegradable materials for a potential use in food packaging. Our formulation with 10% pineapple fibre PLA/PALF composites exhibited enhanced melting temperatures and heat resistance, with a 44% reduction in the tensile strength and 2.7‐fold reduction on the strain at the break when compared with neat PLA. To impart antimicrobial activity, the PLA/PALF was coated with crude supernatants isolated from Pediococcus pentosaceus PP04 containing 1.3% w/v of nisin. This material coated with the crude extract was shown to inhibit the growth of Bacillus cereus ATCC 11778, Salmonella enterica subsp. enterica serovar Typhimurium ATCC 13311, and Escherichia coli ATCC 8739 in culture conditions, as well as minimizing the number of the tested pathogens on coated material surfaces.

Multiwalled Carbon Nanotube/PEDOT: PSS Coated on Pineapple Fiber Paper Based Flexible Electrode for Electrochemical Application

In this study, a green electrode made from natural fiber paper was investigated. A pineapple fiber paper was used as electrode support material. A mixture of multiwalled carbon nanotubes and PEDOT: PSS (MWCNTs/ PEDOT: PSS) was used as active electrode material. PEDOT: PSS, a conducting polymer, was applied as binder to connect between MWCNTs and the surface of pineapple fiber paper, and this setup showed decrease in electrode resistivity. Varying the MWCNT concentration mixed with PEDOT: PSS on pineapple fiber paper was explored. The 3 wt.% MWCNT device gave the maximum conductivity value of 10.87 S cm-1. Cyclic voltammetry and impedance analysis indicated that 3 wt.% MWCNT device showed considerable promise as a flexible electrode for electrochemical devices for energy storage applications.

A comparative evaluation of chemical, mechanical, and thermal properties of oil palm fiber/pineapple fiber reinforced phenolic hybrid composites

AbstractIn this paper, oil palm fiber (OPF) and pineapple fiber (PALF) reinforced biophenolic resin (BPHR) composites and hybrid composites were fabricated by hand lay‐up technique. Structural, thermal and mechanical properties of pure and hybrid composites analyzed by Fourier transform infrared (FTIR), thermal gravimetric analyzer (TGA), dynamic mechanical analyzer (DMA), and universal testing machine. Achieved results indicated that OPF/PALF hybrid composites show better properties as compared with pure composites. It was observed that the tensile and flexural characterizations improved with incorporating OPF and PALF fibers into BPHR composites in comparison to the neat BPHR matrix. The results of the thermal stability obtained from TGA tests showed that the reinforcement of pure fiber composites (OPF and PALF) and hybrid composites (OPF/PALF) in BPHR matrix were improved in comparison to that of neat BPHR matrix. The final decomposition temperature of 50% OPF and 3OPF/7PALF was the highest among all other composites (415.80 and 415.42°C). On the other hand, the residual amount of hybrid composite (1OPF/1PALF) was (24.43%), while the lowest residual amount exhibited in pure composite (50% PALF), which was 20.08%. The reinforcement of pure composite and hybrid composites into BPHR also improved the storage and loss moduli; however, the pure composite sample (50% OPF) exhibited a more significant increase than other composites loadings. Furthermore, the damping factor was reduced significantly by the reinforcement of hybrid composites over pure composites. This study showed that obtained hybrid composites are suitable to apply in various structural and nonstructural applications.

Optimum design based on fabricated natural fiber reinforced automotive brake friction composites using hybrid CRITIC-MEW approach

In this present study, the hybrid criteria importance through inter-criteria correlation (CRITIC) and multiplicative exponent weighting (MEW) optimization approach is applied to the problem of selecting an optimal brake friction formulation that satisfies maximum performance requirements. Automotive brake friction composites containing 5, 10, 15, and 20 weight percentages of natural fibers (hemp, ramie, and pineapple) were developed. These composites analyzed for tribological properties using a Chase testing machine following IS-2742 Part-4 standard. The tribological results, such as friction-fade (%), friction coefficient, friction-recovery (%), friction fluctuations, friction-variability, friction-stability, and wear, are fixed as performance attributes to identify the most suitable friction formulation. The performance coefficient of friction (0.548) and friction-stability (0.93) remain highest for 5 wt.% pineapple fiber composites. Whereas the lowest wear (1.08 g) along with the least friction-recovery (107.54%) was exhibited by 5 wt.% hemp fiber composites. The highest friction-recovery (121.56%) corresponding to the lowest friction performance (0.501) was exhibited by 20 wt.% ramie fiber added composite. On the other hand, 5 wt.% ramie fiber added composite display lowest friction-fade (22.12%) with least friction-variability (0.330) and fluctuation (0.178). The experimental results are found to be strongly composition-dependent and without any pronounced trend. Consequently, it becomes difficult to prioritize the performance of formulations to choose the best among a set of composite formulations. Therefore, a multi-criteria decision-based optimization approach called CRITIC-MEW was applied; that suggests 5 wt.% ramie fiber added composite satisfies the maximum preset performance criteria.

Processing of PLA/pineapple fiber based next generation composites

ABSTRACT Nowadays, the research fraternity across the globe is putting incredible efforts toward the development of sustainable materials. During this endeavor, the potential of sustainable biocomposites incorporating natural fibers as reinforcement and biopolymers as the matrix has received widespread attention for addressing the challenges associated with synthetic fibers and petroleum-derived polymers. However, the limited information about the processing guidelines for these materials and the lack of scientific evidence on how the processing routes affect the performance of the fabricated composites have limited their usage in several commercial applications. In the current investigation, three manufacturing routes, direct-injection molding (DIM) without compounding; compounding using extrusion followed by injection molding (EIM); and compounding using extrusion followed by compression molding (ECM) have been adopted to develop pineapple fibers (PFs)/poly-lactic acid (PLA) biocomposites. The investigation revealed that the crystallinity, visco-elastic, and mechanical responses of the composites fabricated by EIM significantly dominate the composites fabricated by DIM and ECM. The microstructural analysis confirms the severe attrition of fibers during ECM. The thermal analysis of the fabricated composites established that the important responses; glass transition, crystallization, and melting temperature, are independent of the choice of the manufacturing process.

The Effect of Alkali and Fumigation Treatments on King Pineapple Fiber Properties and Interfacial Bonding of King Pineapple Fiber/Unsaturated Polyester on Microcrystalline Cellulose Reinforced Composite

This study aims to determine and compare the effect of alkaline and fumigation treatment on the properties of King pineapple fibers (KPF) and the interfacial bond between King pineapple fibers/ unsaturated polyester and microcrystalline cellulose. Chemically, King pineapple fiber was extracted and dried at room temperature. The fiber was made using the alkaline method by soaking in 5% NaOH for 4 hours, 6 hours, 8 hours, and 10 hours. The fumigation treatment method was carried out for 0 hours, 4 hours, 8 hours, and 12 hours. The single fiber tensile strength test results showed an increase of 51.99% after the fumigation treatment and 59.62 % after the alkaline treatment. The increase in interface shear strength (IFSS) was 32.12% after fumigation treatment and 47.38% after alkaline treatment. The increase in fiber tensile strength and interfacial shear strength (IFSS) is caused by the loss of hemicellulose, pectin, lignin, and other impurities. These results indicate that the alkaline treatment is still better than the fumigation treatment.

Optimal material selection study of prosthetic socket and pylon tube in transtibial prosthesis fabrication

The selection for the fabrication of transtibial prosthesis in developing countries is favoring what materials can be readily available. Given numerous options, a multi-criteria decision-making process can be effectively implemented to choose the optimal materials based on design requirement without compromising the target mechanical properties and comfort for the patient. In this study, analytic hierarchy process (AHP), technique for order preference by similarity to ideal solution (TOPSIS) and preference ranking organization method for enrichment evaluations (PROMETHEE) methods were used as a decision-making tool for materials selection of prosthetic socket and pylon tube. The criteria for the candidate materials such as flexural strength, tensile strength, modulus of elasticity, yield strength and impact strength were evaluated and each criterion was given a weight using AHP, while the materials selection calculation was done using TOPSIS and PROMETHEE. For the prosthetic socket, same ranking was observed for both TOPSIS and PROMETHEE. The carbon fiber reinforced composite (CFRC) was ranked first and closely followed by pineapple fiber reinforced composite (PFRC). TOPSIS ranked PFRC highest for the pylon tube material, followed by titanium alloy while this ranking was interchanged in PROMETHEE, putting first preference for the use of pineapple fiber reinforced composite then followed by titanium alloy. Therefore, the pineapple fiber reinforced composite can be an ideal alternative for the standard carbon fiber socket and titanium pylon tubes in fabricating a transtibial prosthesis.

Utilization of pineapple leaf fiber (Ananas comosus) as material for false eyelashes production

Pineapple fibers are abundant natural fibers in Indonesia. Its utilization in the world of beauty still needs to be developed. The purpose of this research is to know the feasibility of using the pineapple leaf fiber as a material for making false eyelashes. This research uses the material of forest pineapple leaf fibers. The method of study used is a method of quantitative descriptive approach with the type of experimental research and perform the feasibility test of the utilization of pineapple leaf fiber as a material to make false eyelashes for party and to perform the test result of false eyelash for the party by utilizing pineapple leaf fiber as its manufacturing material. Results feasibility test of the utilization of pineapple leaf fiber as a material to manufacture false eyelashes for the party stated 87% very proper, the test results of false eyelash usage for a party 93% very proper

Technological Perspective for Use the Natural Pineapple Fiber in Mortar to Repair Structures

The use of natural fiber in cementitious materials can contribute to the improvement of technological properties and environmental issues related to the reuse of agro-industrial waste. World pineapple production is approximately 12.8 million tons per year, generating large environmental impacts, because the disposal natural fibers in landfills. The objective of this research was to evaluate the potential of reusing the natural fiber from the pineapple crown as a reinforcement element in eco-friendly mortar for the purpose of recovering building structures committed to coastal environments, evaluating the influence of the fiber surface treatment process with NaOH and its durability in laboratory conditions, in addition to avoiding the disposal of this waste in landfills. The natural fibers were characterized physically, morphologically and chemically, in the treated and untreated (natural) condition, for further technological evaluation of mortars in the fresh state, such as consistency, specific mass, incorporated air and water retention. Comprehensive studies of the hardened state were also carried out to study mechanical strength (compressive, flexural and tensile), water absorption due to capillarity and immersion, as well as durability by evaluating mass loss and mechanical strength after exposure conditions. The results showed that the fiber treatment process improved its characteristics for application in mortar with addition of 2.5% fiber treated in cement mass, causing the better in the technological and durability properties, and a proposed new means of disposing of agro-industrial waste, contributing to a circular economy.

Cutting Forces and Flank Wears Analysis for End Mill Processes Using HSS Tools Cryogenic Treatment When Cutting PFRP Material

This study aims to characterize the wear and cutting forces of cryogenically treated and non-treated high-speed steel (HSS) tools when milling PFPR work piece. Pineapple fibre mixed with unsaturated polyester resin was prepared for the work piece. While three levels of cryogenic treatment were applied to the HSS tools with time immersion parameters in liquid nitrogen and time duration. The end mill process using the tools was applied to examine wear and cutting forces. Significant improvement of flank wear ensued on the first tool variation with average flank wear of 90 μm where the tool was treated cryogenically with the immersion of 48 hours and raising the heat up to 150o then normalized and repeating twice. Severe flank wears arisen on a non-treated cryogenic tool with 115 μm. The axial force, cutting force, and thrust force the tool variation varied in the range of 0.4 N to 2.5 N, 40 N to 210 N, 5 N to 28 N, respectively. It can be concluded that cryogenic treatment on HSS employing cryogenic treatment on the first variation of the tool is recommended to be applied in workshops.

Natural particles can armor emulsions against lipid oxidation and coalescence

Traditional functional ingredients, such as conventional emulsifiers (surfactants, animal-derived proteins), and synthetic antioxidants may become obsolete in the development of clean-label, plant-based, sustainable food emulsions. Previously, we showed that tailor-made antioxidant-loaded particles can yield both physically and oxidatively stable emulsions, and we expected that natural particles with related properties could also show these beneficial effects. Here, we investigated Pickering emulsions prepared with natural plant particulate materials. Particles that showed weak aggregation in acidic aqueous media, indicating a relatively hydrophobic surface, were able to physically stabilize oil-in-water emulsions, through either Pickering stabilization (powders of matcha tea, spinach leaves, and spirulina cake), or an increase in viscosity (pineapple fibers). Matcha tea and spinach leaf particle-stabilized emulsions were highly stable to lipid oxidation, as compared to emulsions stabilized by conventional emulsifiers. Taking this dual particle functionality as a starting point for emulsion design is, in our view, essential to achieve clean-label food emulsions.

Processing and characterization of pineapple fiber reinforced recycled polyethylene composites

Abstract The current research investigation is a step towards the use of recycled plastics with natural fiber for developing sustainable composites. In this experimental investigation, pineapple fiber (20% wt.) was selected as reinforcement, and virgin HDPE and recycled HDPE were selected as matrix material. Composites were fabricated by the Extrusion Injection Molding (EIM) process. The mechanical characteristics of fabricated composites (vHDPE + 20PF and rHDPE + 20PF) were determined in terms of tensile and flexural properties as per the ASTM standards. The results show a minor variation in tensile and flexural properties of vHDPE + 20PF and rHDPE + 20PF. SEM images of the fractured surface of fabricated composites, after the tensile test, showed fiber breakage which confirmed that fibers are participating in load-bearing. It may be due to good adhesion between fiber and polymer. The thermogravimetric analysis gives a limiting value of temperature (240 °C) for the processing of composites. Recycling of polymer also has no significant effect on the crystalline nature of fabricated composites.

Investigations on the Mechanical Properties of Natural Fiber Granulated Composite Using Hybrid Additive Manufacturing: A Novel Approach

In this work, experiments on mechanical properties such as tensile, flexural, effects, and stiffness testing are performed on natural fiber granulated composites (NFGC) manufactured using a hybrid additive manufacturing technique. The natural fiber granulated composites are prepared using the powdered form of sugarcane, jute, ramie, banana, pineapple fiber, and seashell powder with a volume fraction of 0.8. In the hybrid additive manufacturing technique, the fused deposited modeling (FDM) machine is modified by combining with the shape deposition modeling (SDM) to print the specimens layer by layer, and the influence of the number of layers on the mechanical properties is analyzed. The results concluded that increasing the number of layers from 6 to 12 improved the mechanical properties such as tensile strength, flexural strength, impact strength, and hardness values by 40.84, 50.04, 21.55, and 20.55%, respectively. Further, a novel technique can be utilized for developing the composites in replacement with conventional methods.

Investigation of moisture absorption and mechanical properties of natural fibre reinforced polymer hybrid composite

The significance of herbal fibre bolstered composites is rapidly developing both in phrases of engineering utility and studies area. These herbal fibres are completely renewable, environmental pleasant, high particular energy, non-abrasive, low fee, biodegradability. Natural fibre powered composites update metals due to their insubstantial, excessive strength to weight ratio, non-corrosive nature and rigidity. However poor interfacial adhesion among fibre and matrix, low melting point and absence of moisture resistance has constrained the usage of herbal fibre. Hybridization allows to tweak the residences of composites as in line with specified requirements and to get the excellent performance. The search is to expand a new magnificence of cloth the usage of green fibre extracted from environmental which is to be a better opportunity for present inexperienced composites. In the prevailing studies, sisal (S) and pineapple leaf fibre (PALF) are decided on because of their eco-friendly nature. Initially, optimal fibre length and weight percent have been decided. To enhance the mechanical homes, pineapple fibre became hybridized with sisal fibre. This observes exhibited that addition of sisal fibre in pineapple/polyester composites of as much as 50% through weight results in growing the mechanical residences and reducing the moisture absorption assets. The tensile, flexural, effect and water absorption exams had been achieved the usage of pineapple/sisal polyester composite fabric.