Production of epoxy composites reinforced by different natural fibers and their mechanical properties

Sarikaya, Engin
Callioglu, Hakan
Demirel, Hakan
The aim of this research is the production of epoxy resin composites reinforced by birch, palm, and eucalyptus fibers with resin transfer molding technique and molded fiber production technique combination. The tensile stress of birch, palm, and eucalyptus reinforced epoxy composites were determined as 29.53, 42.24, and 45.28 MPa, respectively. Bending stress of birch, palm and eucalyptus reinforced epoxy composites were found as 58.83, 68.58, and 79.92 MPa, respectively. The birch epoxy composite had 0.105 J impact energy while palm and eucalyptus epoxy composites were determined as 0.130 and 0.124 J, respectively. It is clearly observed that fiber type was very effective on the mechanical properties of composites. The results of studies showed that molded fiber production method had a very promising future for the development of natural fiber reinforced composites.


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Jande, Yusufu A. C.; Erdal Erdoğmuş, Merve; Dağ, Serkan (SAGE Publications, 2014-06-01)
Selective laser sintering was used for producing uniformly porous and graded porous polyamide structures. The porous structures were infiltrated with epoxy to produce composites. The porous and composite specimens were physically and mechanically characterized. Within the capabilities of the selective laser sintering machine and the materials used, porosities in the range 5-29% could be obtained in a controlled, repeatable manner. The ultimate tensile strength of the produced uniformly porous polyamide stru...
3D printed antibacterial silver nanowire/polylactide nanocomposites
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Silver nanowire (Ag NW) loaded polylactide (PLA) nanocomposites were prepared by simple solution mixing method and then 3D printed to obtain desired shapes. Morphological and thermal analysis of the fabricated nanocomposites was carried out which was followed by the determination of their antimicrobial performance. NWs showed excellent dispersion within the PLA matrix. Antibacterial properties of Ag NW/PLA nanocomposites were investigated against different standard bacterial strains of American Type Culture...
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İpek, Hakan; Erdal Erdoğmuş, Merve; Department of Mechanical Engineering (2005)
The resin transfer molding (RTM ) process, in which a thermosetting resin is injected into a mold cavity preloaded with a porous fiber preform, is a manufacturing method for producing advanced continuous fiber reinforced composite products with complex geometries. Numerical simulation of resin transfer molding process is an often needed tool in manufacturing design, in order to analyze the process before the mold is constructed. In this study, a numerical simulation of the resin impregnation process in RTM ...
Process characterization of composite structures manufactured using resin impregnation techniques
Miskbay, Adem Onur; Parnas, Kemal Levend; Department of Mechanical Engineering (2009)
The aim of this study is to investigate and compare the properties of two layer carbon epoxy composite plates manufactured using various resin impregnation techniques; Resin Transfer Molding (RTM), Light RTM (LRTM), Vacuum Assisted RTM (VARTM) and Vacuum Packaging (VP). Throughout the study a different packaging method was developed and named Modified Vacuum Packaging (BP). The mechanical properties of composite plates manufactured are examined by tensile tests, compressive tests, in-plane shear tests and t...
Flow correction control with electromagnetically induced preform resting process
Poorzeinolabedin, Mohsen; Parnas, Kemal Levend (Springer Science and Business Media LLC, 2019-06-01)
Resin flow correction control with electromagnetic field source, a new variation of the vacuum-assisted resin transfer molding (VARTM) process called electromagnetically induced preform resting (EIPR) for dynamical resin flow controlling is introduced to manipulate the flow front and local permeability to prevent the formation of dry spots. This paper proposes an active and real-time flow control approach that is implemented during the composite laminate infusion. The EIPR process applies an electromagnetic...
Citation Formats
E. Sarikaya, H. Callioglu, and H. Demirel, “Production of epoxy composites reinforced by different natural fibers and their mechanical properties,” COMPOSITES PART B-ENGINEERING, pp. 461–466, 2019, Accessed: 00, 2020. [Online]. Available: