PYROLYZED CARBON BLACK APPLICATION FOR THE FORMATION OF POLYMERIC COMPOSITES WITH VEGETABLE FIBERS AND EVALUATION OF THEIR MECHANICAL PROPERTIES
DOI:
https://doi.org/10.66104/m8b61d46Keywords:
Sisal, Coconut, Polymeric composites.Abstract
Vegetable fibers have emerged as promising alternatives for the development of sustainable composite materials due to their abundance, low cost, biodegradability, and relevant mechanical properties. However, the efficiency of these materials is directly related to the quality of the fiber/matrix interface, which still represents a significant challenge in composite engineering. In this context, the present study investigates the incorporation of pyrolyzed carbon black into an isophthalic polyester resin matrix, aiming to evaluate its influence on interfacial interaction and on the mechanical properties of composites reinforced with sisal and coconut fibers. It is considered that the polarity of the constituents and the mechanisms of mechanical anchoring play a fundamental role in interfacial adhesion, directly influencing the structural performance of the material. The fibers were previously treated in an alkaline solution of sodium hydroxide (NaOH), aiming at the removal of surface impurities and modification of their morphological structure. The composites were produced with and without the addition of 1 wt% carbon black and were subsequently subjected to flexural mechanical tests. The results indicated that the incorporation of fibers promoted significant improvements in mechanical properties compared to pure resin. Additionally, the presence of carbon black contributed to an increase in the modulus of elasticity, flexural strength, and energy absorbed until fracture, especially in composites reinforced with coconut fibers. These results suggest that carbon black acts as a reinforcing agent and interfacial modifier, provided it is properly dispersed within the polymer matrix.
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BAGHAEI, Behnaz; SKRIFVARS, Mikael. Molecules, v. 25, n. 12, p. 2836, 2020. DOI: https://doi.org/10.3390/molecules25122836
DALLOCCHIO R., et al, 2023 “Molecular Dynamics simulations of amylose-and cellulose-based selectors and related enantioseparations in liquid phase chromatography” Molecules, Vol 28 pp 7419 DOI: https://doi.org/10.3390/molecules28217419
FORNARI JUNIOR, C. C. M., MONTEIRO, R. R. 2025. “Avaliação do tempo de tratamento da fibra de coco em solução aquosa de metacaulim e cinza” Studies in Engineering and Exact Sciences. Curitiba, Vol. 6, pp. 01-16. DOI: https://doi.org/10.54021/seesv6n1-026
FORNARI JUNIOR. Fibras Celulósicas para Compósitos Poliméricos. EDITUS-UESC, 2017.
GAMSTEDT, E. Kristofer et al. Mechanics of materials, v. 43, n. 11, p. 693-704, 2011Dallocchio R., desi A., DOI: https://doi.org/10.1016/j.mechmat.2011.06.015
JAKAB, E.; BLAZSÓ, M. The effect of carbon black on the thermal decomposition of vinyl polymers. Journal of analytical and applied pyrolysis, v. 64, n. 2, p. 263-277, 2002 DOI: https://doi.org/10.1016/S0165-2370(02)00037-2
LEOPOLDO P. T. G., 2009. Bioquímica. ISBN 978-85-61385-41-5. Ed. UFS.
LI, Ran et al. Dissolution of cellulose from different sources in an NaOH/urea aqueous system at low temperature. Cellulose, v. 22, p. 339-349, 2015. DOI: https://doi.org/10.1007/s10570-014-0542-6
SARAFPOUR, Amirhosein; PIRCHERAGHI, Gholamreza. The effect of carbon black on degradation of pipe grade black polyethylene in high concentration chlorine dioxide solutions. Polymer Degradation and Stability, v. 230, artigo 111031, 2024. DOI: https://doi.org/10.1016/j.polymdegradstab.2024.111031
SHAH, Nasrullah et al. Overview of bacterial cellulose composites: a multipurpose advanced material. Carbohydrate polymers, v. 98, n. 2, p. 1585-1598, 2013 DOI: https://doi.org/10.1016/j.carbpol.2013.08.018
VENKATARAJAN, S.; ATHIJAYAMANI, A. An overview on natural cellulose fiber reinforced polymer composites. Materials Today: Proceedings, v. 37, p. 3620-3624, 2021. DOI: https://doi.org/10.1016/j.matpr.2020.09.773
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