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Sabu Thomas - One of the best experts on this subject based on the ideXlab platform.
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thermophysical properties of natural Fibre reinforced polyester composites
Composites Science and Technology, 2006Co-Authors: Maries Idicula, Abderrahim Boudenne, L Umadevi, Yves Candau, Laurent Ibos, Sabu ThomasAbstract:Abstract Thermal conductivity, diffusivity and specific heat of polyester/natural Fibre (banana/sisal) composites were investigated as function of filler concentration and for several Fibre surface treatments. The thermophysical behaviour of hybrid pineapple Leaf Fibre (PALF) and glass Fibre reinforced polyester composites has been also evaluated for a constant total Fibre loading of 0.40 Vf by varying the ratio of PALF and glass. The results show that chemical treatment of the Fibres reduces the composite thermal contact resistance. Hybridisation of natural Fibre with glass allows a significantly better heat transport ability of the composite. The thermal conductivity measured in the direction transverse to the plane of composite plate could be well represented by a series prediction model.
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effects of environment on the properties of low density polyethylene composites reinforced with pineapple Leaf Fibre
Composites Science and Technology, 1998Co-Authors: Jayamol George, S S Bhagawan, Sabu ThomasAbstract:Abstract The influence of water environment on the sorption characteristics of low-density polyethylene composites reinforced with short pineapple-Leaf fibers (PALF/LDPE) has been studied by immersion in distilled water at 28, 50 and 70°C. The effects of fiber loading, temperature and chemical treatment on the sorption behavior are also evaluated. Water uptake is found to increase with fiber loading owing to the increased cellulose content. Weight change profiles for the composites at high temperature indicated that the diffusion is close to Fickian. All of the treated composites showed lower uptake than the unmodified composites. Parameters like diffusion, sorption and permeability coefficients were determined and activation energies were calculated. The thermodynamic constants such as entropy, enthalpy and first-order kinetic rate constant have been evaluated. A correlation between theoretical and experimental sorption results was evaluated. The effect of water uptake on uniaxial tensile properties has also been studied. Mechanical properties decreased after exposure to water, depending on time of immersion, fiber loading and chemical treatment. Finally, studies were carried out on the flexural properties of PALF/LDPE composites exposed to ultraviolet radiation.
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thermogravimetric and dynamic mechanical thermal analysis of pineapple Fibre reinforced polyethylene composites
Journal of Thermal Analysis and Calorimetry, 1996Co-Authors: Josephine George, S S Bhagawan, Sabu ThomasAbstract:The thermal behaviour of pineapple Leaf Fibre (PALF) reinforced polyethylene composites was studied by thermogravimetric and dynamic mechanical thermal analysis. Fibre treatment was carried out using isocyanate, silane and peroxide to improve the interfacial adhesion between Fibre and matrix. The effects of Fibre loading and surface modification on the thermal properties were evaluated. It was found that at high temperature PALF degrades before the polyethylene matrix. The storage modulus increased with increase of Fibre loading and decreased with increase of temperature. The treated Fibre composites impart better properties compared to untreated system. Tan δ showed a distinct peak at low temperature ascribed to the glass transition temperature of polyethylene but no peak was observed for PALF Fibre. The relative damping increased with Fibre loading. Cole-Cole analysis was made to understand the phase behaviour of the composite samples.
Januar Parlaungan Siregar - One of the best experts on this subject based on the ideXlab platform.
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Physical properties of short pineapple Leaf Fibre (PALF) reinforced high impact polystyrene (HIPS) composites
Advanced Composites Letters, 2019Co-Authors: Januar Parlaungan Siregar, S M Sapuan, Rahman, Mohamad Zaki, H. M. D. K. ZamanAbstract:The aim of this study to investigate the physical properties of short pineapple Leaf Fibre (SPALF) reinforced high impact polystyrene (HIPS) composites. Three different sizes of the Fibre were used in this study which was 10-40mesh, 40-60mesh and 60-80mesh. A five different Fibre contents were used in this study which was 10%, 20%, 30%, 40%, and 50%. The fabricated SPALF/HIPS composites were used melt mixing and compression moulding. The physical properties of SPALF/HIPS composites such as water absorption, thickness swelling, melt flow index (MFI), and density board of composites were studied. The result showed that the addition of the SPALF was decreased the physical properties compare to pure HIPS (0% SPALF).
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Water Absorption Behaviour and Mechanical Performance of Pineapple Leaf Fibre Reinforced Polylactic Acid Composites
International Journal of Automotive and Mechanical Engineering, 2018Co-Authors: E. H. Agung, Januar Parlaungan Siregar, Dandi Bachtiar, M. H. M. Hamdan, C. Tezara, J. JamiluddinAbstract:Fast-growing scientific work is focusing on alternative sources to replace modern synthetic Fibre materials due to the adverse effects caused by petroleum-based materials. Natural Fibre possesses high potential as a replacement for synthetic Fibre and petroleum-based products. These materials are not only greener and environmental-friendly, but also safe for human health. As such, this study investigated the influence of compatibilising agent of maleated anhydride polyethylene (MAPE) on mechanical performance of pineapple Leaf Fibre (PALF) reinforced polylactic acid (PLA). The raw materials, such as PALF, PLA, and MAPE, were mixed by using a hot roller mixer machine and hot compression moulding at 190oC. The specimens were then tested for water absorption and flexibility. The specimens were submerged in water for 0, 7, 14, and 21 days. Three types of tests were conducted, namely water absorption, tensile, and flexural assessments. The results of water absorption, tensile, and flexural tests for the untreated PALF composite (UPALF) and treated PLAF composite (TPALF) were recorded and explained. As a conclusion, composite materials based on hydrophilic natural Fibre may reduce the tensile and flexural properties of the composite.
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Modification of Pineapple Leaf Fibre to Reinforce Polylactic Acid Composite with Improved Mechanical Properties
2016Co-Authors: Davindra Brabu Mathivanan, Januar Parlaungan Siregar, Dandi Bachtiar, Rejab M. R. M., C. TezaraAbstract:Natural Fibres play a significant role in mass industries such as automotive, construction and sports. Many researchers have found that the natural Fibres are the best replacement for the synthetic Fibres in terms of cost, safety, and degradability due to the shortage of landfill and ingestion of non biodegradable plastic by animals. This study mainly revolved around pineapple Leaf Fibre (PALF) which is available in abundance in tropical countries and for its excellent mechanical properties. The composite fabricated in this study is highly compostable as both Fibre and matrix is from natural based material. The matrix used which is polylactic acid (PLA) is made from corn starch, which gives the upper hand as both materials are renewable resources are easier to degrade by bacteria or enzyme. The PALF is treated with different alkaline percentage to remove excessive moisture in the Fibre for better interfacial bonding with PLA. Thereafter the PALF is washed with distilled water several times before placing in vacuum oven. The dried PALF were later mixed with PLA through extrusion using Fibre in percentage of 30 by weight for better bonding and afterwards the products of the mixture were pelletized using pelletizer. The pellets were placed in the specimen sized mould for hot compression and subsequently were cold pressed. The specimens were tested for tensile and flexure strength and the result was remarkable where a fluctuating graph can be seen for both tensile and flexure strength where 5% alkaline treatment showed the highest tensile and flexure strength among the alkaline solution. It can be concluded that the alkaline concentration affects the strength of the composite and the 5% NaOH solution is the best percentage of alkaline treatment for PALF.
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Tensile Properties of Pineapple Leaf Fibre Reinforced Unsaturated Polyester Composites
Applied Mechanics and Materials, 2014Co-Authors: Januar Parlaungan Siregar, Tezara Cionita, Dandi Bachtiar, Mohd Ruzaimi Mat RejabAbstract:In recent years natural Fibres such as sisal, jute, kenaf, pineapple Leaf and banana Fibres appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and non-renewable synthethic Fibre. This paper investigate the effect of Fibre length and Fibre content on the tensile properties of pineapple Leaf Fibre (PALF) reinforced unsaturated polyester (UP) composites. PALF as reinforcement agent will be employed with UP to form composite material specimens. The various of fiber length (
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tensile properties of pineapple Leaf Fibre reinforced unsaturated polyester composites
Applied Mechanics and Materials, 2014Co-Authors: Januar Parlaungan Siregar, Tezara Cionita, Dandi Bachtiar, Mohd Ruzaimi Mat RejabAbstract:In recent years natural Fibres such as sisal, jute, kenaf, pineapple Leaf and banana Fibres appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and non-renewable synthethic Fibre. This paper investigate the effect of Fibre length and Fibre content on the tensile properties of pineapple Leaf Fibre (PALF) reinforced unsaturated polyester (UP) composites. PALF as reinforcement agent will be employed with UP to form composite material specimens. The various of fiber length (<0.5, 0.5–1, and 1-2 mm) and Fibre content (0, 5, 10 and 15 % by volume) in UP composite have been studied. The fabrication of PALF/UP composites used hand lay-up process, and the specimens for tensile test prepared follow the ASTM D3039. The result obtained from this study show that the 1-2 mm Fibre length has higher tensile strength (42 MPa) and tensile modulus (1344 MPa) values compared to Fibre length of <0.5 mm (30 MPa and 981 MPa) and 0.5-1 mm (35.40 MPa and 1020 MPa) respectively. Meanwhile, for the effect of various Fibre content in study has shown that the increase of Fibre content has decreased in tensile strength dan tensile modulus of composites. The increase of Fibre content due to poor interfacial bonding and poor wetting of the Fibre by unsaturated polyster. The treatment of natural Fibre are suggested in order to improve the interfacial adhesion between natural Fibre and the unsaturated polyester.
Tezara Cionita - One of the best experts on this subject based on the ideXlab platform.
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the effect of maleic anhydride polyethylene on mechanical properties of pineapple Leaf Fibre reinforced polylactic acid composites
International Journal of Precision Engineering and Manufacturing-Green Technology, 2019Co-Authors: J. P. Siregar, Tezara Cionita, Dandi Bachtiar, M R M Rejab, Jamiluddin Jaafar, Choo Chee Jie, Y P AsmaraAbstract:The study of natural fiber composite in the field of materials has indeed sparked interest among many due to its essential biodegradability feature. As such, pineapple Leaf fiber (PALF) is not only biodegradable, but also environmental friendly, as opposed to synthetic fiber. Hence, this paper investigates the effect of fiber loading, as well as the inclusion of maleic anhydride polyethylene (MAPE) to the mechanical properties of PALF reinforced polylactic acid composites. Therefore, untreated PALF with 0, 5, 10, and 15% of weight content ratio, as well as PALF at 10% weight ratio treated with 2, 4, and 6% of MAPE, had been prepared via roll mill mixing at 190 °C and followed by hot compression molding to prepare the specimen sheets. The results obtained from this study revealed that the tensile strength (TS) and the Young’s modulus were at their highest levels for untreated 10% PALF, while the impact and the flexure properties displayed a decrease as the content of fiber increased. Other than that, the inclusion of MAPE indicated that the tensile properties exhibited lower value compared to that of untreated. However, the flexural and the impact properties of composites increased with the presence of MAPE. As a conclusion, the study demonstrates that the mechanical properties depended on two major factors; (1) fiber loading, and (2) the compatibility between matrix polymer and fiber.
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the mechanical properties of alkaline treated pineapple Leaf Fibre to reinforce tapioca based bioplastic resin composite
Materials Science Forum, 2017Co-Authors: Davindra Brabu Mathivanan, Dandi Bachtiar, J. P. Siregar, M R M Rejab, Y P Asmara, Tezara CionitaAbstract:The depletion crude oil has urged many researchers to find a suitable material to replace the current synthetic polymer products. Furthermore the shortage of landfill and ingestion of plastic by animals has to be taken in consideration in finding a material that can be easily biodegraded by enzyme or bacteria. In this study both Fibre and matrix are from plant Fibre, which makes the product highly compostable after the intended life usage. The Fibre surface is modified with various alkaline concentrations before mixing with matrix through extrusion technique. The product of the extrusion is pelletized and hot compressed into specimen size according to ASTM. The specimen was tested for mechanical properties and the result shows the alkaline concentration affects the strength of the composite.
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the study of mechanical properties of pineapple Leaf Fibre reinforced tapioca based bioplastic resin composite
MATEC Web of Conferences, 2016Co-Authors: Davindra Brabu Mathivanan, Dandi Bachtiar, J. P. Siregar, H Norfazilah, M R M Rejab, Tezara CionitaAbstract:Natural Fibre reinforced composite has brought the material engineering to a high new level of research. Natural Fibres are compatible with matrices like polypropylene and can be used as reinforcement material to reduce the composition of plastic in a material. Natural Fibres such as kenaf, pineapple Leaf, and coir already found its importance in reducing the dependence of petroleum based products. However the biodegradability of the product at the end of the intended lifespan is still questionable. This has led many researches to look for a suitable replacement for synthetic Fibres and achieve better adhesion between Fibre and matrix. In this study, fiber and matrix which are hydrophilic in nature was used and the mixture was extruded and hot compressed to acquire better mechanical properties. The specimens were fabricated and tested according to ASTM D638. The 30% composition illustrates the best average modulus value among other composition and from this result it can be concluded that the increase of PALF Fibre in TBR composite increases the modulus strength of the composite.
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Tensile Properties of Pineapple Leaf Fibre Reinforced Unsaturated Polyester Composites
Applied Mechanics and Materials, 2014Co-Authors: Januar Parlaungan Siregar, Tezara Cionita, Dandi Bachtiar, Mohd Ruzaimi Mat RejabAbstract:In recent years natural Fibres such as sisal, jute, kenaf, pineapple Leaf and banana Fibres appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and non-renewable synthethic Fibre. This paper investigate the effect of Fibre length and Fibre content on the tensile properties of pineapple Leaf Fibre (PALF) reinforced unsaturated polyester (UP) composites. PALF as reinforcement agent will be employed with UP to form composite material specimens. The various of fiber length (
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tensile properties of pineapple Leaf Fibre reinforced unsaturated polyester composites
Applied Mechanics and Materials, 2014Co-Authors: Januar Parlaungan Siregar, Tezara Cionita, Dandi Bachtiar, Mohd Ruzaimi Mat RejabAbstract:In recent years natural Fibres such as sisal, jute, kenaf, pineapple Leaf and banana Fibres appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and non-renewable synthethic Fibre. This paper investigate the effect of Fibre length and Fibre content on the tensile properties of pineapple Leaf Fibre (PALF) reinforced unsaturated polyester (UP) composites. PALF as reinforcement agent will be employed with UP to form composite material specimens. The various of fiber length (<0.5, 0.5–1, and 1-2 mm) and Fibre content (0, 5, 10 and 15 % by volume) in UP composite have been studied. The fabrication of PALF/UP composites used hand lay-up process, and the specimens for tensile test prepared follow the ASTM D3039. The result obtained from this study show that the 1-2 mm Fibre length has higher tensile strength (42 MPa) and tensile modulus (1344 MPa) values compared to Fibre length of <0.5 mm (30 MPa and 981 MPa) and 0.5-1 mm (35.40 MPa and 1020 MPa) respectively. Meanwhile, for the effect of various Fibre content in study has shown that the increase of Fibre content has decreased in tensile strength dan tensile modulus of composites. The increase of Fibre content due to poor interfacial bonding and poor wetting of the Fibre by unsaturated polyster. The treatment of natural Fibre are suggested in order to improve the interfacial adhesion between natural Fibre and the unsaturated polyester.
S M Sapuan - One of the best experts on this subject based on the ideXlab platform.
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Physical properties of short pineapple Leaf Fibre (PALF) reinforced high impact polystyrene (HIPS) composites
Advanced Composites Letters, 2019Co-Authors: Januar Parlaungan Siregar, S M Sapuan, Rahman, Mohamad Zaki, H. M. D. K. ZamanAbstract:The aim of this study to investigate the physical properties of short pineapple Leaf Fibre (SPALF) reinforced high impact polystyrene (HIPS) composites. Three different sizes of the Fibre were used in this study which was 10-40mesh, 40-60mesh and 60-80mesh. A five different Fibre contents were used in this study which was 10%, 20%, 30%, 40%, and 50%. The fabricated SPALF/HIPS composites were used melt mixing and compression moulding. The physical properties of SPALF/HIPS composites such as water absorption, thickness swelling, melt flow index (MFI), and density board of composites were studied. The result showed that the addition of the SPALF was decreased the physical properties compare to pure HIPS (0% SPALF).
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Physical properties of coir and pineapple Leaf Fibre reinforced polylactic acid hybrid composites
IOP Conference Series: Materials Science and Engineering, 2018Co-Authors: Ramengmawii Siakeng, Mohammad Jawaid, Hidayah Ariffin, S M SapuanAbstract:This study examined the physical behaviour of Coir Fibres (CF)/Pineapple Leaf Fibres (PALF)/Poly lactic acid (PLA) composites. In this research, coir and PALF reinforced PLA hybrid composites were fabricated by hand lay-up process and hot press. The aim of this work is to do comparative study on density, water absorption (WA) and thickness swelling (TS) of untreated CF/PALF reinforced PLA composites and hybrid composites. The effect of different Fibre ratios in hybridization on density, WA and TS of CF/PALF hybrid composites were also analyzed and C7P3 showed highest density while P30 had lowest. The results indicated that the density varies on different Fibre ratio. WA and TS of CF/PALF composites and hybrid composites vary with Fibres ratio and soaking duration. WA and TS of untreated CF/PALF hybrid composites were increased by increasing coir Fibre ratio so, C30 showed highest WA and TS whereas P30 and C1P1 showed least WA and TS respectively apart from neat PLA.
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mechanical properties and water absorption behavior of hybridized kenaf pineapple Leaf Fibre reinforced high density polyethylene composite
Journal of Composite Materials, 2013Co-Authors: E S Zainudin, K Abdan, S M SapuanAbstract:This work provides variation in mechanical properties such as tensile, flexural and impact strength of hybridized kenaf and pineapple Leaf Fibre-reinforced high-density polyethylene composite. Two or more natural Fibres are hybridized to provide an effective means of designing materials for various service requirements. The composite of kenaf/pineapple Leaf Fibre high-density polyethylene-based hybrid composite with different weight proportion of Fibres were prepared. Total overall Fibre loading in the composite was kept at 40%. The hybrid composites prepared were subjected to water immersion for 14 days to see how this concept can affect water uptake. At equal percentage ratio of the Fibres, hybridization effect was optimized for tensile and flexural test; however, K6P4 gave the optimum impact strength while K3P7 resulted in the least overall water uptake. Strength and modulus values increased with increase in percentage of pineapple Leaf Fibre in the composite and the higher aspect ratio of kenaf helped...
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Mechanical properties and water absorption behavior of hybridized kenaf/pineapple Leaf Fibre-reinforced high-density polyethylene composite
Journal of Composite Materials, 2012Co-Authors: I. S. Aji, S M Sapuan, E S Zainudin, K Abdan, KhairulAbstract:This work provides variation in mechanical properties such as tensile, flexural and impact strength of hybridized kenaf and pineapple Leaf Fibre-reinforced high-density polyethylene composite. Two or more natural Fibres are hybridized to provide an effective means of designing materials for various service requirements. The composite of kenaf/pineapple Leaf Fibre high-density polyethylene-based hybrid composite with different weight proportion of Fibres were prepared. Total overall Fibre loading in the composite was kept at 40%. The hybrid composites prepared were subjected to water immersion for 14 days to see how this concept can affect water uptake. At equal percentage ratio of the Fibres, hybridization effect was optimized for tensile and flexural test; however, K6P4 gave the optimum impact strength while K3P7 resulted in the least overall water uptake. Strength and modulus values increased with increase in percentage of pineapple Leaf Fibre in the composite and the higher aspect ratio of kenaf helped...
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The effect of electron beam irradiation on the mechanical properties of pineapple Leaf Fibre (PALF) reinforced high impact polystyrene (HIPS) composites
IOP Conference Series: Materials Science and Engineering, 2010Co-Authors: Januar Parlaungan Siregar, S M Sapuan, M.z.a. Rahman, H. M. D. K. ZamanAbstract:The effects of electron beam irradiation on the mechanical properties of pineapple Leaf Fibre reinforced high impact polystyrene (HIPS) composites were studied. Two types of crosslinking agent that has been used in this study were trimethylolpropane triacrylate (TMPTA) and tripropylene gylcol diacrylate (TPGDA). A 50 wt.% of PALF was blended with HIPS and crosslinking agent using Brabender melt mixer at 165 °C. The composites were then irradiated using a 3 MeV electron beam accelerator with dosage of 0-100 kGy. The tensile strength, tensile modulus, flexural strength, flexural modulus, notched and unnotched impat and hardness of composites were measured and the effects of crosslinking agent were also compared.
Dandi Bachtiar - One of the best experts on this subject based on the ideXlab platform.
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the effect of maleic anhydride polyethylene on mechanical properties of pineapple Leaf Fibre reinforced polylactic acid composites
International Journal of Precision Engineering and Manufacturing-Green Technology, 2019Co-Authors: J. P. Siregar, Tezara Cionita, Dandi Bachtiar, M R M Rejab, Jamiluddin Jaafar, Choo Chee Jie, Y P AsmaraAbstract:The study of natural fiber composite in the field of materials has indeed sparked interest among many due to its essential biodegradability feature. As such, pineapple Leaf fiber (PALF) is not only biodegradable, but also environmental friendly, as opposed to synthetic fiber. Hence, this paper investigates the effect of fiber loading, as well as the inclusion of maleic anhydride polyethylene (MAPE) to the mechanical properties of PALF reinforced polylactic acid composites. Therefore, untreated PALF with 0, 5, 10, and 15% of weight content ratio, as well as PALF at 10% weight ratio treated with 2, 4, and 6% of MAPE, had been prepared via roll mill mixing at 190 °C and followed by hot compression molding to prepare the specimen sheets. The results obtained from this study revealed that the tensile strength (TS) and the Young’s modulus were at their highest levels for untreated 10% PALF, while the impact and the flexure properties displayed a decrease as the content of fiber increased. Other than that, the inclusion of MAPE indicated that the tensile properties exhibited lower value compared to that of untreated. However, the flexural and the impact properties of composites increased with the presence of MAPE. As a conclusion, the study demonstrates that the mechanical properties depended on two major factors; (1) fiber loading, and (2) the compatibility between matrix polymer and fiber.
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Water Absorption Behaviour and Mechanical Performance of Pineapple Leaf Fibre Reinforced Polylactic Acid Composites
International Journal of Automotive and Mechanical Engineering, 2018Co-Authors: E. H. Agung, Januar Parlaungan Siregar, Dandi Bachtiar, M. H. M. Hamdan, C. Tezara, J. JamiluddinAbstract:Fast-growing scientific work is focusing on alternative sources to replace modern synthetic Fibre materials due to the adverse effects caused by petroleum-based materials. Natural Fibre possesses high potential as a replacement for synthetic Fibre and petroleum-based products. These materials are not only greener and environmental-friendly, but also safe for human health. As such, this study investigated the influence of compatibilising agent of maleated anhydride polyethylene (MAPE) on mechanical performance of pineapple Leaf Fibre (PALF) reinforced polylactic acid (PLA). The raw materials, such as PALF, PLA, and MAPE, were mixed by using a hot roller mixer machine and hot compression moulding at 190oC. The specimens were then tested for water absorption and flexibility. The specimens were submerged in water for 0, 7, 14, and 21 days. Three types of tests were conducted, namely water absorption, tensile, and flexural assessments. The results of water absorption, tensile, and flexural tests for the untreated PALF composite (UPALF) and treated PLAF composite (TPALF) were recorded and explained. As a conclusion, composite materials based on hydrophilic natural Fibre may reduce the tensile and flexural properties of the composite.
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the mechanical properties of alkaline treated pineapple Leaf Fibre to reinforce tapioca based bioplastic resin composite
Materials Science Forum, 2017Co-Authors: Davindra Brabu Mathivanan, Dandi Bachtiar, J. P. Siregar, M R M Rejab, Y P Asmara, Tezara CionitaAbstract:The depletion crude oil has urged many researchers to find a suitable material to replace the current synthetic polymer products. Furthermore the shortage of landfill and ingestion of plastic by animals has to be taken in consideration in finding a material that can be easily biodegraded by enzyme or bacteria. In this study both Fibre and matrix are from plant Fibre, which makes the product highly compostable after the intended life usage. The Fibre surface is modified with various alkaline concentrations before mixing with matrix through extrusion technique. The product of the extrusion is pelletized and hot compressed into specimen size according to ASTM. The specimen was tested for mechanical properties and the result shows the alkaline concentration affects the strength of the composite.
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Modification of Pineapple Leaf Fibre to Reinforce Polylactic Acid Composite with Improved Mechanical Properties
2016Co-Authors: Davindra Brabu Mathivanan, Januar Parlaungan Siregar, Dandi Bachtiar, Rejab M. R. M., C. TezaraAbstract:Natural Fibres play a significant role in mass industries such as automotive, construction and sports. Many researchers have found that the natural Fibres are the best replacement for the synthetic Fibres in terms of cost, safety, and degradability due to the shortage of landfill and ingestion of non biodegradable plastic by animals. This study mainly revolved around pineapple Leaf Fibre (PALF) which is available in abundance in tropical countries and for its excellent mechanical properties. The composite fabricated in this study is highly compostable as both Fibre and matrix is from natural based material. The matrix used which is polylactic acid (PLA) is made from corn starch, which gives the upper hand as both materials are renewable resources are easier to degrade by bacteria or enzyme. The PALF is treated with different alkaline percentage to remove excessive moisture in the Fibre for better interfacial bonding with PLA. Thereafter the PALF is washed with distilled water several times before placing in vacuum oven. The dried PALF were later mixed with PLA through extrusion using Fibre in percentage of 30 by weight for better bonding and afterwards the products of the mixture were pelletized using pelletizer. The pellets were placed in the specimen sized mould for hot compression and subsequently were cold pressed. The specimens were tested for tensile and flexure strength and the result was remarkable where a fluctuating graph can be seen for both tensile and flexure strength where 5% alkaline treatment showed the highest tensile and flexure strength among the alkaline solution. It can be concluded that the alkaline concentration affects the strength of the composite and the 5% NaOH solution is the best percentage of alkaline treatment for PALF.
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the study of mechanical properties of pineapple Leaf Fibre reinforced tapioca based bioplastic resin composite
MATEC Web of Conferences, 2016Co-Authors: Davindra Brabu Mathivanan, Dandi Bachtiar, J. P. Siregar, H Norfazilah, M R M Rejab, Tezara CionitaAbstract:Natural Fibre reinforced composite has brought the material engineering to a high new level of research. Natural Fibres are compatible with matrices like polypropylene and can be used as reinforcement material to reduce the composition of plastic in a material. Natural Fibres such as kenaf, pineapple Leaf, and coir already found its importance in reducing the dependence of petroleum based products. However the biodegradability of the product at the end of the intended lifespan is still questionable. This has led many researches to look for a suitable replacement for synthetic Fibres and achieve better adhesion between Fibre and matrix. In this study, fiber and matrix which are hydrophilic in nature was used and the mixture was extruded and hot compressed to acquire better mechanical properties. The specimens were fabricated and tested according to ASTM D638. The 30% composition illustrates the best average modulus value among other composition and from this result it can be concluded that the increase of PALF Fibre in TBR composite increases the modulus strength of the composite.