Kenaf Hybrid Research Articles

Experimental investigation on the mechanical and acoustic performance of hemp/kenaf hybrid composites: Influence of different stacking sequences

AbstractThis study investigated the effect of various stacking sequences on the mechanical and acoustic characteristics of hemp and kenaf fibers reinforced hybrid composites. The mechanical study was done by using universal testing machine and izod imact tester. Further, acoustic study was done by using impendence tube method. Hemp/kenaf/kenaf/hemp hybrid laminates outperformed the other composites in terms of tensile strength, flexural strength and impact strength. In the mono reinforcements, hemp/epoxy composites demonstrated superior mechanical characteristics than the epoxy matrix and kenaf/epoxy composites. However, hybrid composites have superior mechanical behavior compared to pure composites. From the acoustic results revealed that the pure hemp and kenaf/hemp/hemp/kenaf hybrid composites exhibitted highest sound transmission loss level at lowest and highest frequency region. The bestmechanical characteristics of hybrid composites will be suggested for use in automobile door panels. Also, the optimal sound transmission coefficent values signifying their appropriateness for use in applications that encompass many frequency bands.Highlights Hybridization of kenaf/hemp fibers Improved mechanical properties over the single fiber composites Better acoustic properties

Study of impact performance of composite sandwich structure fabricated partially with natural fiber facesheet

AbstractComposite structures with a pure glass composite facesheet and an aluminum honeycomb core are widely used in aircraft interiors. Because impact‐related problems are related to structural integrity and safety performance, the behavior of these structures under impact loading is critical. Due to their promising performance, lower cost, and low environmental impact, hybrid composites have recently become one of the most widely researched composite materials in the research field. This paper aims to investigate the impact behavior of nonhybrid glass and the glass partially replaced with a flax and kenaf hybrid composite facesheet caused by a low‐velocity impact. The specimens were impacted with different impacted energies, such as 10, 20, and 30 J. All nonimpacted and impacted samples were tested and compared for postimpact flexural (three‐point bending) behavior to analyze the residual strength of sandwich structures after impact. The results revealed that the hybrid composite face sheet outperformed the glass composite sandwich structure. The hybrid composite face sheet allowed the impactor to penetrate deeper, resulting in better energy absorption than the glass composite. Compared to nonimpacted specimens, the glass and hybrid face sheet combinations demonstrated comparable residual bending performance.Highlights Experimental analysis shows the impact resistance (low‐velocity impact test) and residual load‐carrying capacity (three‐point bending test) of glass and hybrid composite face sheets. Hybrid face sheets show excellent energy‐absorbing capability compared to glass one. The residual flexural strength of the glass and hybrid composites was comparable to that of nonimpacted samples. The peel strength achieved in this study using the pre‐cure fabrication process was significantly higher than the peel strength achieved using prepreg face sheets. Reinforcing the composite face sheet of the sandwich structure by partially replacing the glass with flax and kenaf fiber exhibited comparable performance.

Investigation Of Stacking Layer Effect on The Kenaf Hybrid Composite Mechanical Properties for Automotive Application

The field of automotive manufacturing continually seeks innovative, sustainable materials with an emphasis on mechanical robustness. The study is aimed at investigating the Kenaf fibers' potential as an alternative to synthetic fiber composites in automotive bumper beams, shedding light on the mechanical properties of this hybrid composite. The primary focus lies on the impact of different fiber orientations: unidirectional, bidirectional, and 45-degree angles. Using the hand layup process, a natural fiber composite served as the material for constructing the sample, tested for mechanical properties with a Universal Testing Machine. Findings from both tensile and flexural tests illuminate the mechanical properties of Kenaf fiber composite, providing valuable insights into its utilization potential. The Kenaf hybrid composite showcased viable mechanical properties, suggesting its potential for automotive applications. The research establishes Kenaf fibers as a promising, sustainable alternative that could revolutionize the automotive industry without compromising structural integrity.

Physiological and transcriptome analysis reveals key genes and molecular basis into heterosis of kenaf (Hibiscus cannabinus L.) under drought stress

Kenaf exhibits strong heterosis with abiotic stress tolerance. To understand the performance of kenaf heterosis under drought stress, transcriptome profiling was performed by RNA sequencing of kenaf hybrid F1 and its parents (CP079 and CP071). Under drought stress, SPAD values, soluble sugar, and proline accumulation were significantly higher, while malonaldehyde (MDA) content were lower in the F1 hybrid compared with its parents. In addition, F1 exhibited higher activity of antioxidant enzymes. Overall, 616 common differentially expressed genes (DEGs) closely related to drought tolerance and 792 specific genes related to drought heterosis were identified between the F1 hybrid and its parents. The expression patterns of 524 and 523 DEGs were closer to maternal and paternal genes, respectively. Some critical drought-induced transcription factors (TFs) of specific drought-associated genes such as MYB, bHLH, NAC, bZIP, and HSP families played key roles in drought stress tolerance heterosis. According to KEGG pathway analysis, DEGs are primarily involved in the metabolism of galactose, starch and sucrose, glycerolipids, taurine, and hypotaurine, plant MAPK signaling pathway and the transduction of plant hormones. Moreover, several hormone transduction genes among the drought stress heterosis genes were found, including HcGH3, HcEXPB4, HcVAP, HcCKX1, HcDnaJ, and HcMSR2. Furthermore, overexpression HcERF2 suggested it positively regulates the drought tolerance by increasing antioxidant enzyme activity. These findings provide a solid foundation for understanding the essential genes functions and pathways involved in kenaf heterosis during drought stress.

Static and dynamic mechanical behavior of intra‐hybrid jute/sisal and flax/kenaf reinforced polypropylene composites

AbstractThe current experimental investigation examines the effect of the warp/weft orientation of jute/sisal and flax/kenaf fibers on the static and dynamic mechanical characteristics of intra‐woven hybrid composites. Jute (J), sisal (S), flax (F), and kenaf (K) hybrid woven mats were explicitly designed to keep fibers in the warp and weft directions. Intra‐hybrid‐composites with JJ, JS, SJ, SS, FF, FK, KF, and KK type hybrid woven mats with polypropylene matrix were processed using the compression molding/film stacking method. The tensile and flexural, and the dynamic mechanical behavior was investigated. Utilizing a scanning electron microscope, the fractured surface of tensile test specimens was examined. The results indicate that combining jute with sisal and flax with kenaf improved the mechanical properties of pure sisal and kenaf based composites. Hybridized composites exhibited the maximum increment in tensile strength (5.95% and 31.16%), tensile modulus (4.20% and 66.64%), flexural strength (12.59% and 5.69%), and flexural modulus (47.10% and 19.72%) for JS and FK composites, when compared with unhybridized SS and KK composites, respectively. The fiber hybridization and warp/weft sequence have a substantial effect on the dynamic mechanical performance of woven fiber laminated composites. It was identified that composites of JS and FK possess a higher storage modulus than pure SS and KK based composites, respectively. In addition, at a temperature of 50°C, the storage modulus was improved by 37.63% and 136.63%, for JS and FK hybrid composites, respectively in comparison to the unhybridized SS and KK composites, respectively.

Thermal characterization of epoxy bilayer hybrid composites reinforced with kenaf and oil palm fibers

AbstractNatural fiber‐based materials are widely accepted in the composite sector as a substitute for synthetic fiber, particularly in structural and semi‐structural implementations in the automotive and aerospace industries, reflecting a recent trend and increased awareness of the importance of sustainable product design. Hand lay‐up was used to create natural fiber bilayer hybrid composites with epoxy matrix reinforcing oil palm empty fruit bunch (EFB) and kenaf fiber matting. The overall effect of this hybridization of the natural fiber and the thermal characterizations were studied experimentally. Both the hybrid combinations kenaf fiber and oil palm EFB were made by maintaining the fiber loading at 50% (weight) and weight ratios at 1:1, 1:4 and 4:1. The Tan delta, loss modulus (E″), storage modulus (E′), and Cole‐Cole plot were found to be useful in investigating dynamic mechanical properties. Dynamic mechanical analysis results like coefficient of performance and Cole‐Cole plot clearly show that hybrid pure kenaf composite has the significant complex modulus because interfacial bond between fiber and matrix is strong. As a result, it has been determined that kenaf fibers have the best mixing ratio for improving the dynamic mechanical properties of these hybrid type composites and can be used for aerospace, automotive, and civil engineering applications requiring high dimensional stability and excellent mechanical properties. The thermal gravimetric analysis data demonstrated that as compared to pure, the kenaf fibers and hybrid oil palm empty fruit bunch composites have the best thermal stability, with the highest beginning and ultimate breakdown temperatures of 200 and 450°C, respectively.

Effect of stacking sequence on tensile properties of glass, hemp and kenaf hybrid composites

Abstract Natural fibre reinforced polymer composites have the potential to be utilized at various applications due to their non-hazardous effect to the environment, biodegradable properties as well as enhanced mechanical characteristics. Nevertheless, mechanical properties of these composites are complicated to understand and predicted due to complex interaction between matrix and different type of fibres, fibres architecture and fibres arrangement. Therefore, this paper aims to study the effect of various types of fibres; kenaf mat, hemp mat and Glass Chopped Strand Mat as a core, core thickness; 1, 2 and 4 layers, and fibre arrangements; kenaf mat, hemp mat and Glass Chopped Strand Mat arranged in middle layer (core) or outer layer (skin) on tensile properties of hybrid composites. The hybrid composite specimens were prepared through combinations of hand lay-up and vacuum methods in which both methods are commonly employed techniques in industry. There are four types of fibre arrangement systems involved: (2:1:2), (2:2:2), (2:4:2) and (1:4:1). As expected, the glass fibres hybrid composites had the highest tensile performance compared to other hybrid composites. The fibre arrangement (2-1-2) was the best option for all types of fibres, while the use of 4 layers of kenaf mat, hemp mat and Glass Chopped Strand Mat as core material reduced the tensile properties. In comparison of (2-2-2) and (1-4-1), kenaf mat and Glass Chopped Strand Mat performed better as a core, while hemp mat performed better as skin.

The influence of human hair on kenaf and Grewia fiber-based hybrid natural composite material: an experimental study

The demand for natural composite products to make various industrial and commercial products and protect the environment is continuously increasing. In this paper, a hybrid plant fiber composite (HPFC) is produced by a hand lay-up molding method using 64 wt% resin matrix and 36 wt% natural fibers (kenaf, Grewia and human hair). The influences of the weight of the natural fibers on tensile, flexural and impact strengths were investigated by the simplex lattice method. It was revealed that the percentage contribution of kenaf and human hair fibers to tensile strength, flexural and impact strengths is higher than that of Grewia fiber. The optimum weight percentage of fibers is 13.5 wt% kenaf, 15.3 wt% human hair and 7.2 wt% Grewia to produce a HPFC with desirable mechanical properties. The mechanical properties of the HPFC were compared with those of HPFC without human hair. The tensile, flexural, and impact strengths of the HPFC were 17.95%, 11.1% and 19.79% higher than the HPFC without human hair. The predicted optimum HPFC for making commercial products to fulfill consumer demand is recommended.

Experimental Investigation on Thermal and Transport Properties of Indian Almond – Kenaf Hybrid Composites for Construction Applications

ABSTRACT Construction industries demand a material with high strength to endure severe environmental conditions like high temperature and humid and hence, it is noteworthy to assess the thermal and water transport properties of the material. In this investigation, the natural fibers based composites were fabricated using Indian almond and kenaf fibers by hand layup method. Entirely, two natural fiber composites viz. epoxy/Indian almond & epoxy/kenaf and two hybrid composites viz. kenaf/India almond/kenaf (K/I/K) & Indian almond/kenaf/Indian almond (I/K/I) were prepared. Thermogravimetric analysis (TGA) was carried out to analyze the thermal properties and water absorption study was carried out to analyze the transport properties. TGA study showed that the epoxy/kenaf composite exhibited a maximum onset temperature of 340.49°C owing to good bonding strength and the K/I/K composite displayed a maximum decomposition temperature of 380.21 ° with a minimum mass loss of 1.29 mg/min. Further, the epoxy/Indian almond composite showed a better flame retardancy property due to more char formation. Water absorption study resulted that the epoxy/Indian almond composite absorbed more water (35% at 50°C) compared to other composites due to spongy like structure and the presence of more voids on the surface of the fiber. Further, the epoxy/kenaf composite displayed more resistance to water penetration with maximum activation energy of diffusion of 2.63 kJ/mole. Transport properties such as diffusion coefficient, sorption coefficient and permeability coefficient were varied in line with temperature. The epoxy/kenaf composite showed least diffusion coefficient of 2.48 × 10−5 cm2/s, sorption coefficient of 1.05, and permeability coefficient of 2.61 × 10−5 cm2/s at 30°C among all other composites due to good bonding strength.

Mechanical properties of nanoclay-filled kenaf and hybrid glass/kenaf fiber composites

Kenaf is a natural fiber that can be used as an alternative reinforcement material due to its excellent properties such as low density and high strength. In this study, kenaf composites were developed by hybridizing with glass fiber and modified with nanoclay to enhance its mechanical properties. The woven type of glass fiber was placed on top and bottom of the kenaf composite. Three different percentages of nanoclay contents, i.e. 1 wt%, 3 wt%, and 5 wt% were modified with epoxy resin to fabricate nanoclay-filled Kenaf (KFRP) and nanoclay-filled hybrid Glass/Kenaf (GKFRP) composites. The composites were prepared by dispersing nanoclay into epoxy using the three-roll mill machine, and the kenaf fiber was wound using filament winding machine. The flexural test and tensile test in longitudinal (0°) and transverse (90°) fiber direction were performed to study the effect of hybridizing glass fiber and adding nanoclay into KFRP composites. The results show that hybridization of kenaf fiber with glass fiber enhanced flexural and tensile properties in both fiber directions. The addition of 1 wt% and 3 wt% nanoclay also improve the tensile and flexural properties of KFRP composites; however, the addition of 5 wt% nanoclay reduces the mechanical performance of composites.

Effect of Stacking Sequences on Mechanical Properties of Kenaf Hybrid Composites

In the current project, Kenaf fiber (K) and carbon fiber (C) with epoxy resin were utilized to form carbon-kenaf hybrid composites using a vacuum infusion technique. The volume fraction of fiber and thickness of a hybrid composite was fixed at 40 vol.% and 3mm, respectively. Four different sequences were introduced in the current project including CCCCC, KKKKK, KCKCK, and CKCKC. Mechanical testing such as tensile and flexural tests were performed according to ASTM D3039 and ASTM D790, respectively. Scanning Electron Microscope (SEM) and Optical Microscope (OM) were used to identify modes of failures in both tensile and flexural tests of carbon/kenaf hybrid composites. The hybrid CKCKC sample displayed a higher value in tensile strength (264.23 MPa), tensile modulus (11.06 GPa), flexural strength (438.51 MPa) and flexural modulus (25.13 GPa) as compared than KCKCK hybrid sample.

A review on kenaf fiber hybrid composites: Mechanical properties, potentials, and challenges in engineering applications

The developments of agricultural-based composites for structural applications such as in construction, aerospace, and automotive have gained tremendous interest from researchers due to the uniqueness of its behaviors. Among available agricultural fibers, kenaf fiber widely adopted as a reinforcement in polymer composites to form kenaf reinforced polymer matrix composites. The hybridization technique was introduced to enhance the mechanical performances of composite materials wherein two different types of reinforcements were employed to form a hybrid composite. Therefore, in this review paper, the investigations focus on the mechanical properties of kenaf hybrid composites as well as potentials and barriers of agricultural-based composites were discussed to provide a literature source for future research regarding this topic.

Effect of Kenaf/Empty Fruit Bunch (EFB) Hybridization and Weight Fractions in Palm Oil Blend Polyester Composite

ABSTRACT This research is aimed to investigate the effect of different weight percent of kenaf and empty fruit bunch (EFB) hybrid compositions and fiber fractions (wt%) on the mechanical and thermal properties of unsaturated polyester (UPE)/epoxidized palm oil (EPO) composite. The kenaf and EFB fibers were first treated with an alkali solution before being pressed using a hydraulic hot-pressed machine. In this study, three different kenaf/EFB hybridization compositions were studied which are 100/0, 90/10, 70/30, and 50/50 (wt%) at three different fiber weight fractions (9%, 12%, and 15%) reinforced in UPE/EPO resin. The fiber treatment successfully removed the majority of the moisture, cellulose, and hemicellulose of kenaf and EFB fiber. The mechanical study revealed that the higher composition of EFB in kenaf/EFB hybrid fiber increased Young’s modulus, tensile strength, elongation at break, and impact strength of the resulted composite at 9 and 12 wt% fiber fractions. Thermal analysis proved that the hybridization fibers and higher fiber weight fractions improved the thermal stability by reducing the decomposition rate of the composites. Overall, kenaf/EFB hybridization reinforced in UPE/EPO resin is a good approach toward green composite development.

Tensile strength of glass fiber-reinforced waste PET and Kenauf hybrid composites

Increasing the amount of plastic waste from year to year is inevitable due to the increased use of plastics by people in the World. This study aims to evaluate the mechanical behavior, in this case, the tensile strength of a hybrid composite between kenaf natural fibers, PET plastic waste and glass fibers for wallboard. This research takes the form of experimental tests in the laboratory. The composite material to be made is a mixture of plastic, kenaf fiber with glass fiber with polyester reinforcement. Both kenaf and glass fiber is made in sheet form. The hypothesis developed in this laboratory study from previous research found that kenaf and glass fiber hybrid material can be used for partition material. Results showed that hybridization with glass fiber enhanced performance properties. A value of 48,5 MPa for tensile strength is achieved from waste PET glass kenaf hybrid composite without immersion.

Thermal Properties of Woven Kenaf/Carbon Fibre-Reinforced Epoxy Hybrid Composite Panels

The effects of carbon fibre hybridisation on the thermal properties of woven kenaf-reinforced epoxy composites were studied. Woven kenaf hybrid composites of different weave designs of plain and satin and fabric counts of5×5and6×6were manually prepared by a vacuum infusion technique. A composite made from 100% carbon fibre was served for a comparison purpose. Thermal properties of pure carbon fibre and hybrid composites were determined by using a thermogravimetric analyser (TGA) and differential scanning calorimeter (DSC). It was found that a hybrid composite with higher kenaf fibre content (fabric count6×6) showed better thermal stability while the highest thermal stability was found in the pure carbon fibre composite. The TG and DTG results showed that the amount of residue decreased in the plain-designed hybrid composite compared to the satin-designed hybrid composite. The DSC data revealed that the presence of woven kenaf increased the decomposition temperature.

Kenaf and Kenaf-Rubberwood Hybrid Particleboards

Kenaf (Hibiscus cannabinus) stem which consists of whole stem (KWS), core (KC) and bast (KB) were used to fabricate homogeneous and hybrid kenaf-rubberwood particleboards. Two types of panels namely homogeneous (100%RW, 100%KWS, 100%KC and 100%KB) and hybrid (70%RW- 30%KWS, 70%RW- 30%KC and 70%RW30%KB) particleboards were manufactured and examined through compaction and void evaluations. Findings show that hybrid panels consisting of 70% RW and 30% KWS and homogeneous 100%KWS give better compaction and less voids as compared to other homogenous and hybrid panels. The panel made from 100% KWS was observed to have more flattened and compressed cells compared to other homogeneous panels. A presence of RW particle apparently reduces the void content and provides better compaction in the hybrid panels

Genetic studies of fibre yield-related traits and days to anthesis in some kenaf (Hibiscus cannabinus L.) accessions

Kenaf (Hibiscus cannabinus L.) is an economically important and multi-purpose natural fibre crop with several industrial applications. However, its potentials have not been fully maximised due to poor yield and its narrow genetic base which limited the available hybrids. The low yield is attributed to high photoperiod sensitivity of most kenaf accessions because it reduces the vegetative growth. This study attempts to understand the genetic architecture of days to anthesis of kenaf towards the development of a photo-insensitive kenaf hybrid. Two early maturing Nigerian kenaf accessions: NHC (12)1 and NHC (3)2, and two late maturing accessions (NHC [9]2 and NHC 15) were crossed to generate F1 population. The F1 hybrid together with its parents and its reciprocals were planted in a randomised complete block experiment design with three replicates. Data were collected on days to anthesis (DTA), plant height (HAH), basal stem girth (GAH), base diameter (BDAH) and weight at harvest (WAH) for analysis. The mean squares were significant for DTA, HAH, DBAH, GAH and WAH. DTA exhibited the highest broad-sense heritability value (0.98) among other traits. The GCA: SCA ratio for DTA and BDAH signifies that the effect of non-additive genes was prevalent because it was lower than a unity while the additive gene action was predominant in HAH. The negative GCA estimates for NHC (12)1 and NHC (9)2 indicated a poor combining ability. Only NHC (3)2 x NHC (9)2 showed good specific combining ability (-5.75, 0.33, 0.85, 91.46) for DTA, GAH, BDAH and WAH respectively. NHC (12)1 x NHC (9)2, NHC (3)2 x NHC (9)2, NHC (3)2 x NHC 15, NHC (9)2 x 3NHC (3)2, NHC (9)2 x NHC 15, NHC 15 x NHC (3)2, NHC 15 x NHC (9)2 showed negative significant percent of F1 heterosis above the mid-parent in days to anthesis and could be employed to breed photo-insensitive early maturing kenaf.

Thermomechanical and dynamic mechanical properties of bamboo/woven kenaf mat reinforced epoxy hybrid composites

The dimensional stability and dynamic mechanical properties on bamboo (non woven mat)/kenaf (woven mat) hybrid composites was carried out in this study. The hybridization effect of bamboo (B) and kenaf (K) fibers at different weight ratio were studied at B:K:70:30, and B:K:30:70 while maintaining total fiber loading of 40% by weight. The coefficient of thermal expansion (CTE) and dynamic mechanical properties of composites were analyzed by thermomechanical anlayzer (TMA), and dynamic mechanical analyzer (DMA), respectively. Positive hybridization effects were observed on B:K:50:50 hybrid composite with lowest CTE and highest dynamic mechanical properties among all composites. The dimensional stability were strongly influence by the fiber orientation where all composites shows prominent expansion in the transverse fibers direction but relatively low expansion in longitudinal fibers direction. Dynamic mechanical properties in term of complex modulus (E*), storage modulus (E′), loss modulus (E″), Tan delta and Cole-Cole plot were studied. DMA results reveal that B:K:50:50 hybrid composite possess the highest complex modulus due to the strong fiber/matrix interfacial bonding which supported by the coefficient of effectiveness and Cole-Cole plot. Hence, it is concluded that 50:50 weight ratio of bamboo and kenaf fibers is the optimum mixing ratio to enhance both dimensional and dynamic mechanical properties of hybrid composites, and it can be utilized for automotive or building materials applications which demand high dimensional stability and dynamic mechanical properties.

Physical and flammability properties of kenaf and pineapple leaf fibre hybrid composites

Pineapple leaf fibre (PALF) was hybridized with kenaf fibre in order to achieve superior physical and flammability performance. The mixing effects of kenaf fibre and pineapple leaf fibre in phenolic composites are evaluated at various fibre ratios and investigated various physical properties such as density, void content water absorption, thickness swelling and flammability. Pure kenaf fibre composite showed lowest void content, water absorption and thickness swelling while pineapple leaf fibre revealed the opposite trend. After adding pineapple leaf fibre in kenaf composites, it absorbed more moisture and developed more void contents. Density of PALF composite was lower and kenaf fibre composite was highest but PALF/kenaf hybrid composite increased density with higher PALF. The flammability of hybrid composites were analysed by using UL-94 test method. Vertical and horizontal UL-94 test conducted to analyse fire resistance of composites from different angles. Phenolic resin is itself a fire resistant polymer and the percentage of polymer in all samples are fixed though ratios of both fibres pineapple leaf fibre and kenaf were change to analyse fire resistant of fibres and compatibility with polymers. The 70 % pineapple leaf fibre and 30 % kenaf fibre hybrid composites were very affective to improve the flammability of PALF/KF hybrid composites.

Review of Kenaf Reinforced Hybrid Biocomposites: Potential for Defence Applications

Background: The present review deals with the recent development of kenaf hybrid composites. Kenaf reinforced polymer composites are made up of either thermoplastic or thermoset matrix, depending on their applications. The combination of kenaf fibre with more than two fibres in hybrid composites enhances the potential uses of kenaf in many applications. The well-known limitations of natural fibres, such as lack of thermal stability, strength degradation, water absorption and poor impact properties, encourage the exploration of hybridisation with high performance fibres. Methods: We review the researches on kenaf reinforced composites and kenaf reinforced hybrid biocomposites. This review covers the types of matrix used, methods applied in manufacturing the hybrid composites and the potential application of the hybrid composites. Results: Kenaf fibres are widely used in fibre reinforced composites. There are limitations in the use of kenaf in polymeric composites, including high moisture absorption, non-uniformity and poor mechanical properties. Hybridisation of kenaf fibre with other fibres resulted in the hybrid composites with comparable strength, stiffness, strength to weight ratio, resistance and other physical and mechanical properties. The selection of matrix materials also plays an important role in fibre reinforced composites materials. There will be an increase in the use of natural fibre hybrid composites in areas such as household products and automotives. Conclusion: Kenaf fibres play an important role in multi-application composites. This fibre is used solely in polymer matrix or in combination either with other natural fibres or with synthetic fibres. Kenaf hybrid composites are being developed as a potential alternative to reduce the use of synthetic fibres such as aramid or glass fibres.