Impact Properties of Natural Fiber Hybrid Reinforced Epoxy Composites

2011 ◽  
Vol 264-265 ◽  
pp. 688-693 ◽  
Author(s):  
Mohammad Jawaid ◽  
H.P.S. Abdul Khalil ◽  
A.H. Bhat ◽  
A. Abu Baker
Keyword(s):  
Thermal Properties ◽  
Coupling Agent ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Ethyl Acrylate ◽  
Morphological Properties ◽  
Impact Properties ◽  
Izod Impact ◽  
The One ◽  
The Impact

The hybrid composites were fabricated by taking cheaply available empty fruit bunch fibers and jute fibers trilayers as reinforcement in epoxy matrix using simple hand lay-up-technique. Thermal, mechanical and morphological properties were characterized. The notched izod impact strength of most hybrids increased with respect to the virgin matrix. The laminates coupled with 2-Hydoxy ethyl acrylate (HEA) showed better impact properties than the one without coupling agent. The addition of fibers and coupling agent considerably improved the thermal stability (i.e., decomposition and residue content) of the hybrids. The thermal properties measured by thermogravimetric analysis (TGA) showed that fibres and coupling agents improved thermal properties. The impact fractured composite specimens were analyzed using field emission scanning electron microscopy (FESEM) to know the morphological behaviour.

scholarly journals A brief review on mechanical and thermal properties of banana fiber based hybrid composites

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
P. Sivaranjana ◽  
V. Arumugaprabu
Keyword(s):  
Thermal Properties ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Fiber Reinforcement ◽  
Mechanical And Thermal Properties ◽  
Banana Fruit ◽  
Banana Plant ◽  
Banana Fiber ◽  
Banana Fibers ◽  
The Impact

AbstractThe usage of banana natural fibers along with polymer matrix composites had created much interest among the researchers due to their low cost, easy availability, strength and enhancement in properties such as mechanical, wear, electrical and thermal. Banana plant is cultivated all over the world which is familiarly used as food products especially banana fruit as well as many household items made from banana fibers. The natural fiber extracted from the banana stem proves to be a potential reinforcement in the composite manufacturing. This review is very much needed because of the enormous research reported on the banana fiber reinforced polymer composites, with such an excellent property offered by this banana fiber reinforcement the impact of hybridization and its need also to be addressed. This brief review article gives a detail information about the combinations of various hybrid composites produced using the banana fiber along with various other natural/synthetic fibers in the polymer matrixes and its performance improvement especially in the mechanical and thermal properties. From the review it was inferred that 30–50% increase in all the mechanical properties such as Tensile, Flexural and Impact strength. Also in addition an enhancement in thermal and moisture resistance also noted. In addition during this review the research gap observed is that the development of bio composites based on banana fiber is very limited and also the influence of banana fiber along with bio resin needs to be studied. The properties such as fatigue, fire resistance also to be analyzed using the banana fiber reinforcement.

Effect of Coupling Agent on Mechanical and Thermal Behaviour of Oil Palm/Jute Hybrid Composites

2013 ◽  
Vol 686 ◽  
pp. 125-129
Author(s):  
Mohammad Jawaid ◽  
Azman Hassan ◽  
H.P.S. Abdul Khalil
Keyword(s):  
Oil Palm ◽  
Coupling Agent ◽  
Hybrid Composites ◽  
Weight Ratio ◽  
Ethyl Acrylate ◽  
Tensile Fracture ◽  
Flexural Properties ◽  
Jute Fibre ◽  
The One ◽  
Thermal Stability Of

Hybrid composites prepared by using oil palm empty fruit bunch (EFB) and jute fibres as reinforcement in epoxy matrix by keeping the EFB/jute fibre weight ratio constant at 1:1. In this study, effect of coupling agent on tensile and flexural properties of oil palm empty EFB/jute fibres reinforced epoxy hybrid composites evaluated. Hybrid composites are prepared by using hand lay-up technique. Particular interest is the effect of coupling agent (CA), 2-Hyroxy ethyl acrylate (HEA) on the tensile and flexural properties of hybrid composites. The laminates coupled with HEA showed better tensile and flexural properties than the one without coupling agent. The highest tensile and flexural strength value has been obtained for hybrid composite of jute/EFB/jute (CA). Tensile fracture composite specimens were analyzed by using scanning electron microscopy (SEM) to know the morphological behaviour of composites. Thermal properties of the hybrid composites were investigate to observe the effect of 2-Hyroxy ethyl acrylate (HEA) on thermal stability of hybrid composites.

scholarly journals Effect of Stacking Sequences on Impact properties of Kenaf - Areca Hybrid Epoxy Composite

2019 ◽  
Vol 8 (11) ◽  
pp. 2038-2041
Keyword(s):  
Room Temperature ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Unsaturated Polyester ◽  
Wood Dust ◽  
Filler Materials ◽  
Dead Weight ◽  
Adhesion Properties ◽  
Impact Properties ◽  
The Impact

In this research impact properties of the hybrid natural fiber composites made up of areca, kenaf fiber mats with a 10 wt. % of wood dust as the filler materials in six different stacking sequences are studied. The fibers are treated for 30 hours with 10 % of NaOH solution at room temperature to improve the adhesion properties of the fibers. The composites are made-up by hand lay-up procedure using unsaturated polyester resin combined with a catalyst of Methyl Ethyl Ketone Peroxide (MEKP) and accelerator of Cobalt. The fabricated composites are allowed to cure for 24 hours at room temperature by placing a dead weight which gives a compact pressure. After that the hybrid composites are cut as per ASTM D256 standard to carry out the impact test by Izod Charpy impact tester. Five samples in each stacking were tested for the average value. The impact energy absorbed by specimens with six different stacking sequences are compared. The morphological study of the fractured impact specimens are studied using Scanning Electron Microscope images

Experimental assessment of adding carbon nanotubes on the impact properties of Kevlar-ultrahigh molecular weight polyethylene fibers hybrid composites

2020 ◽  
pp. 152808372092148 ◽  
Author(s):  
Mansour B Bigdilou ◽  
Reza Eslami-Farsani ◽  
Hossein Ebrahimnezhad-Khaljiri ◽  
Mohammad A Mohammadi
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Weight ◽  
Energy Absorption ◽  
Hybrid Composites ◽  
Ultrahigh Molecular Weight Polyethylene ◽  
Absorbed Energy ◽  
Impact Properties ◽  
Damage Area ◽  
Ultrahigh Molecular Weight ◽  
The Impact

In the present study, the effect of adding various percentage (0.1, 0.3, 0.5, and 0.9 wt.%) of carbon nanotubes on the impact properties of hybrid composites reinforced with the different stacking sequence of Kevlar fibers and ultrahigh molecular weight polyethylene was investigated. The obtained results showed that the composite with the configuration of sandwiched ultrahigh molecular weight polyethylene layers by Kevlar layers had the higher impact properties as compared with other hybrid configurations. Adding 0.1 wt.% carbon nanotubes in this configuration was caused to increase the normalized absorbed energy more than 6.5 times. The fracture surface of this configuration showed that the branching and expanding the damage area were the dominant mechanisms for the energy absorption of impactor. Also, the field emission scanning electron microscope illustrated that the carbon nanotubes by bridging, pulling out, and fracturing mechanisms increased the capability of energy absorption in the hybrid composites.

An Experimental Study of Physical, Mechanical and Morphological Properties of Alkali Treated Moringa/areca Based Natural Fiber Hybrid Composites

2020 ◽  
pp. 1-12
Author(s):  
Subhakanta Nayak ◽  
Sujit Kumar Khuntia ◽  
Saumya Darsan Mohanty ◽  
Jagannath Mohapatra ◽  
Tapan Kumar Mall
Keyword(s):  
Experimental Study ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Morphological Properties

scholarly journals Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 866 ◽  
Author(s):  
Alexandre L. Pereira ◽  
Mariana D. Banea ◽  
Jorge S.S. Neto ◽  
Daniel K.K. Cavalcanti
Keyword(s):  
Thermal Properties ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Thermal Characterization ◽  
Mechanical And Thermal Properties ◽  
Scanning Calorimetry ◽  
Sem Images ◽  
The Matrix ◽  
American Society ◽  
Curaua Fibers

The main objective of this work was to investigate the effect of hybridization on the mechanical and thermal properties of intralaminar natural fiber-reinforced hybrid composites based on sisal. Ramie, sisal and curauá fibers were selected as natural fiber reinforcements for the epoxy matrix based composites, which were produced by the hand lay-up technique. Tensile, flexural and impact tests were carried out according to American society for testing and materials (ASTM) standards to characterize the hybrid composites, while differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to evaluate the thermal properties. It was found that the mechanical properties are improved by hybridization of sisal based composites. The thermal analysis showed that the hybridization did not significantly affect the thermal stability of the composites. A scanning electron microscopy (SEM) was used to examine the fracture surface of the tested specimens. The SEM images showed a brittle fracture of the matrix and fiber breakage near the matrix.

Mechanical and Morphological Properties of Sisal/Glass Fiber-Polypropylene Composites

2008 ◽  
Vol 47-50 ◽  
pp. 486-489 ◽  
Author(s):  
Kasama Jarukumjorn ◽  
Nitinat Suppakarn ◽  
Jongrak Kluengsamrong
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Weight Ratio ◽  
Morphological Properties ◽  
Fiber Reinforced ◽  
Polypropylene Composites ◽  
Specific Strength ◽  
Fiber Reinforced Polymer Composites

Natural fiber reinforced polymer composites became more attractive due to their light weight, high specific strength, biodegradability. However, some limitations e.g. low modulus, poor moisture resistance were reported. The mechanical properties of natural fiber reinforced composites can be improved by hybridization with synthetic fibers such as glass fiber. In this research, mechanical properties of short sisal-PP composites and short sisal/glass fiber hybrid composites were studied. Polypropylene grafted with maleic anhydride (PP-g-MA) was used as a compatibilizer to enhance the compatibility between the fibers and polypropylene. Effect of weight ratio of sisal and glass fiber at 30 % by weight on the mechanical properties of the composites was investigated. Morphology of fracture surface of each composite was also observed.

Maleated soybean oil as coupling agent in recycled polypropylene/wood flour composites: Mechanical, thermal, and morphological properties

2018 ◽  
Vol 32 (8) ◽  
pp. 1056-1067 ◽  
Author(s):  
Matheus Poletto
Keyword(s):  
Thermal Properties ◽  
Soybean Oil ◽  
Coupling Agent ◽  
Wood Flour ◽  
Natural Fibers ◽  
Morphological Properties ◽  
Mechanical And Thermal Properties ◽  
Wood Fibers ◽  
Alternative Source ◽  
Recycled Polypropylene

In this study, composites with interesting mechanical and thermal properties were prepared using chemically modified vegetable oil as coupling agent in wood-fibers-reinforced recycled polypropylene. Soybean oil was reacted with maleic anhydride to produce maleated soybean oil (MASO). The mechanical, thermal, and morphological properties of the composite were evaluated. The usage of MASO as a coupling agent clearly improved the interfacial adhesion between wood fibers and the polypropylene matrix and increased the mechanical and thermal properties evaluated. Based on the obtained results, it is concluded that MASO can act as an alternative source of coupling agent dispensing with the addition of petroleum-based compatibilizers to improve the mechanical and thermal properties of composites reinforced with natural fibers.

scholarly journals Thermal, mechanical and morphological properties of polyurethane–zirconia loading

2020 ◽  
Author(s):  
Ali J Salman ◽  
Ali Assim Al-Obaidi ◽  
Dalya H Al-Mamoori ◽  
Lina M Shaker ◽  
Ahmed A Al-Amiery
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Thermal Properties ◽  
Material Science ◽  
Morphological Properties ◽  
Flexural Stress ◽  
Renewable Materials ◽  
Sem Images ◽  
The Impact ◽  
Scanning Electron

Abstract The polyurethane (PU) has been showing a dramatic increase in applications related to material science and technology. However, the mechanical, physical and thermal properties could be further improved by loading PU with zirconia (Zr) to create renewable materials known as polyurethane–zirconia (PUZ) composites. In this study, PU matrix was treated with wt.% Zr at 0.5, 1.0, 1.5 and 2.0. In this study, the thermo-mechanical properties and the morphology were investigated of PU and PUZ nano-samples. The images of the scanning electron microscope (SEM) were the prime tool in investigating PU and PUZ surfaces and fractured surfaces showing vanishing the cracks and formation of agglomeration on the sample PUZ-1.5%. In addition, the tensile strength, Young’s modulus and maximum loading were improved by 36.7, 31.8 and 39.1%, respectively, at Zr loading of 1.5 wt.%. The flexural stress and the load were improved by 94.3% and 93.6%, respectively, when Zr loading was 1.5 wt.%. The impact without and with a notch was improved by 110.7% and 62.6%, respectively, at Zr loading of 1.5 wt.%. The the morphologies of the PU surface and Zr surface supported by SEM images. Regarding the storage modulus ability of PU and PUZ composites, Zr loading has negatively influenced E. The E functioning temperature was observed to move from 142 to 183°C. Another effect was determined by adding a small amount of Zr. This small amount was enough to shift the crystallization temperature (${T}_c$) and the melting temperature (${T}_m$) of PU from 125 to 129°C and from 150 to 144°C, respectively.

Effects of Kenaf and Rice Husk on Thermal Properties of Kenaf/CaCO3/HDPE and Rice Husk/CaCO3/HDPE Hybrid Composites

2013 ◽  
Vol 748 ◽  
pp. 201-205
Author(s):  
Abd Aziz Noor Zuhaira ◽  
Rahmah Mohamed
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Rice Husk ◽  
Natural Fiber ◽  
Hybrid Composites ◽  
Degree Of Crystallinity ◽  
Differential Scanning Calorimetric ◽  
Kenaf Fiber ◽  
Twin Screw ◽  
Thermal Stability Of

In this research, rice husk and kenaf fiber were compounded with calcium carbonate (CaCO3)/high density polyethylene (HDPE) composite.Different loadings of up to 30 parts of 50 mesh sizes of rice husk particulate and kenaf fiber were compounded using twin-screw extruder with fixed 30 parts of CaCO3 fillerto produce hybrid composites of rice husk/CaCO3/HDPE and kenaf/CaCO3/HDPE.Compounded hybrid composites were prepared and tested for thermal properties. The thermal stability of the components was examined by thermogravimetricanalysis (TGA) and differential scanning calorimetric (DSC). The DSC results showed a slightly changes in melting temperature (Tm), crystallization temperature (Tc) and the degree of crystallinity (Xc) with addition of natural fiber. TGA indicates thermal stability of hybrid composite filled with kenaf or rice husk is better than unfilledCaCO3/HDPE composite.

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