Mechanical properties of bamboo reinforced epoxy sandwich structure composites

Roslan, Siti Amni; Hassan, Mohamad Zaki; Rasid, Zainudin A.; Zaki, Sheikh Ahmad; Daud, Yusrina Mat; Aziz, S.; Sarip, Shamsul; Ismail, Zarini

doi:10.15282/ijame.12.2015.7.0242

Cited by 38 publications

(22 citation statements)

References 19 publications

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“…In our previous work, incorporation of agar into thermoplastic sugar palm starch has successfully improved the mechanical properties of this biopolymer, which was also accompanied with the enhanced thermal stability [7]. Application of natural filler into polymer composites is a practical solution to enhance the properties of the composites while improving the environmental characteristics of the material as well [8][9][10]. Various natural fillers have been used in previous work such as snail shell, seashell, olive pit, oil palm shell, and coconut shell [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of seaweed on physical properties of thermoplastic sugar palm starch/agar composites

Jumaidin¹,

Sapuan²,

Jawaid³

et al. 2016

J. MECH. ENG. SCI.

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The aim of this paper is to investigate the physical properties of thermoplastic sugar palm starch/agar (TPSA) blend when incorporated with seaweed. The ratio of starch, agar, and glycerol for TPSA was maintained at 70:30:30. Seaweed with various contents (10,20,30, and 40 wt.%) were mixed with TPSA matrix via melt mixing before compression were molded into 3 mm plate at 140 o C for 10 minutes. The prepared laminates were characterized for moisture absorption, water absorption, thickness swelling, water solubility, and density. The results showed that increasing seaweed loading from 0 to 40 wt% has led to a drop in moisture content from 6.50 to 4.96% and 9% reduction of the density. TPSA matrix showed 52.5% water uptake and 32.3% swelling whereas TPSA/seaweed composites (40 wt% loading) showed 97% water uptake and 74.8% swelling respectively. Higher water solubility was also shown by TPSA/seaweed composites (57 wt%) compared to that of the TPSA matrix (26 wt%). After 16 days of storage, the equilibrium moisture content for TPSA and TPSA/seaweed (40 wt% loading) were 23.2 and 25.2% respectively. In conclusion, TPSA/seaweed composites show good environmental friendly characteristics as a renewable material. In future, the properties of this material can be further improved by hybridization with more hydrophobic fillers for better resistance against water.

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Section: Introductionmentioning

confidence: 99%

Effect of seaweed on physical properties of thermoplastic sugar palm starch/agar composites

Jumaidin¹,

Sapuan²,

Jawaid³

et al. 2016

J. MECH. ENG. SCI.

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“…One of the current research trends in this field is the application of natural fiber composites for structural application such as a sandwich structure. In a recent study, a sandwich structure composite was developed using bamboo reinforced epoxy [28]. In addition, the feasibility of natural fiber composite material for engineering application has been studied extensively [29].…”

Section: Introductionmentioning

confidence: 99%

Flexural behaviour of hybrid sandwich panel with natural fiber composites as the intermediate layer

Fajrin¹,

Zhuge²,

Bullen³

et al. 2016

J. MECH. ENG. SCI.

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Polymeric composites reinforced with natural fibers have raised more attention as the alternative building materials. In this work, natural fiber composites prepared from jute and hemp fiber were proposed for the intermediate layer of a hybrid sandwich panel. This paper presented the flexural behavior of the newly developed hybrid sandwich panel which included the comparison of the ultimate load, load-deflection behavior, load-strain behavior and failure modes. The study was designed as a single factor experiment where the performance of hybrid sandwich panels containing jute fiber composite (JFC) and hemp fiber composite (HFC) as the intermediate layer was compared to the control (CTR) which was a conventional sandwich panel without an intermediate layer. A static flexural test under a four-point bending load scheme was performed in accordance with the ASTM C 393-00 standard. Aluminium sheet was used as the skins, while expanded polystyrene (EPS) was employed for the core. The testing was performed using a 100 kN servohydraulic machine with a loading rate of 5 mm/min. The applied load, displacement and strains were obtained using data logger. The results demonstrated that the hybrid sandwich panel exhibited a more superior performance than the conventional sandwich panels. The intermediate layer contributed significantly to enhancing the load carrying capacity of the hybrid sandwich panel. The load carrying capacity of hybrid panel with the JFC intermediate layer was 29.60% higher than the conventional sandwich panel, and correspondingly 93.46% higher for the sandwich panel with the HFC intermediate layer.The hybrid sandwich panels also developed a much larger area under the load-deflection curve, indicating greater toughness. The introduction of intermediate layer helped the hybrid sandwich panels to sustain a larger strain prior to reach their ultimate loads, resulting in a higher deformation capability. Indentation and core shear were observed as the failure mode of the conventional sandwich panel. Meanwhile, core shear and delamination were identified as the failure mode of the hybrid sandwich panel.

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“…Recently, the development of biodegradable polymer has focused on natural fibre reinforced polymer composite material [1][2][3][4][5][6][7][8][9]. However, one major shortcoming of polymer material development is the manufacturing and processing temperature, where the natural fibre has a low degradation temperature while major resins available in the market such as polypropylene have higher melting temperatures [1,[4][5][6][10][11][12][13][14][15][16]. The creation of poly lactic acid (PLA) as a "green matrix" provides an alternative and a solution for the development of natural fibre polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Study on properties of tapioca resin polymer

Jaafar¹,

Siregar²,

Sulaiman³

et al. 2016

Int. J. Automot. Mech. Eng.

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Environmental, global warming, renewability, recyclability, and biodegradability issues have encouraged scientists and engineers to partially substitute petrochemical-based polymers with green polymers such as natural fibre polymer composites. A major drawback in the development of natural fiber polymer composites is the incompatibility between the matrix and fibre processing temperature, given the high temperature of the matrix based on petroleum and the low degradation temperature for natural fibre. The creation of poly lactic acid as a "green matrix" provides an alternative and a solution for the development of natural fiber polymer composites. In this work, the physical, thermal and mechanical properties of PLA tapioca resin biopolymer derived from industrial grade tapioca were reported in order to determine the optimum processing temperature. A drying process, injection moulding and hot press process are involved in sample preparation. A density test, hardness test, thermogravimetric analysis, and differential scanning calorimetry have been conducted. Afterwards, a tensile test was performed with samples at five different injection temperatures of 160°C, 165°C, 170°C, 175°C and 180°C in order to determine the optimum processing temperature. The sample at 165°C shows the highest result of ultimate tensile strength with 14.904 MPa, and 320.564 MPa for the elastic modulus result. As a conclusion, 165°C was finalized as the optimum processing temperature of PLA tapioca resin biopolymer for future application in the research and development of natural fibre reinforced tapioca resin biopolymer composite.

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Mechanical properties of bamboo reinforced epoxy sandwich structure composites

Cited by 38 publications

References 19 publications

Effect of seaweed on physical properties of thermoplastic sugar palm starch/agar composites

Effect of seaweed on physical properties of thermoplastic sugar palm starch/agar composites

Flexural behaviour of hybrid sandwich panel with natural fiber composites as the intermediate layer

Study on properties of tapioca resin polymer

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