The improvement of Epoxy/ sub microns coffee fibers (EP/ SMCFs) to prepare natural gelcoat has been done, using submicron coffee particles sizes (∼ 0.3 microns ) in different weight fractions of loading ( 1 , 2 , 3 , 4 , 5 , 6 , 7.5 and 10% ) as reinforcement to epoxy . The mechanical properties were carried out on the (EP/ SMCFs) to get the optimal value of fibers addition, to prepare the natural gelcoat. The best value of coffee fibers was (7.5 wt. %) which improves the impact strength, hardness, flexural and compressive strength of epoxy by the ratios (36.5% , 5.54% , 38.33% and 86.63%) respectively. Thermal stability and glass transition temperature of the (EP/ 7.5% SMCFs) are determined using Differential scanning calorimetry (DSC). The morphology of (epoxy / 7.5 % coffee powder) gelcoat checked by scanning electron microscopy , to interpret the relation between the microstructure of gelcoat and its mechanical and thermal properties .
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21 April 2023
TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES22Fr
9–11 May 2022
Metz, Grand-Est, France
Research Article|
April 21 2023
Preparation of (epoxy/coffee fibers) composites as natural gelcoat with high mechanical properties
Rand B. Lutfi;
Rand B. Lutfi
a)
Department of Physics, College of Education for Pure Science Ibn Al Haitham, University of Baghdad
, Baghdad, Iraq
a)Corresponding author: [email protected]
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Widad H. Jassim
Widad H. Jassim
b)
Department of Physics, College of Education for Pure Science Ibn Al Haitham, University of Baghdad
, Baghdad, Iraq
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2769, 020001 (2023)
Citation
Rand B. Lutfi, Widad H. Jassim; Preparation of (epoxy/coffee fibers) composites as natural gelcoat with high mechanical properties. AIP Conf. Proc. 21 April 2023; 2769 (1): 020001. https://doi.org/10.1063/5.0129370
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